Index Features and advantages... 3 General characteristics... 5 Nomenclature Technical specifications... 11

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2 Index Features and advantages... 3 Low operating cost... 3 Low operating sound levels... 3 Excellent serviceability... 3 Proven reliability... 3 Infinite capacity control... 3 Superior control logic... 3 Code requirements Safety and observant of laws/directives... 3 Certifications... 4 Efficiency and sound configuration... 4 Versions... 4 Sound levels... 4 General characteristics... 5 Cabinet and structure... 5 Screw compressors with integrated oil separator... 5 Ecological HFC R-134a refrigerant... 5 Evaporator... 5 Condenser coils... 5 Condenser coil fans... 5 Electronic expansion valve... 6 Refrigerant circuit... 6 Electrical control panel... 6 Standard options (supplied on basic unit)... 8 Options (on request)... 8 Nomenclature Technical specifications EWAD~D-SS EWAD~D-SL EWAD~D-SR EWAD~D-SX EWAD~D-XS EWAD~D-XR EWAD~D-HS Sound levels Operating limits Water charge, flow and quality Water content in cooling circuits Standard ratings Standard ratings EWAD~D-SS EWAD~D-SL EWAD~D-SR EWAD~D-SX EWAD~D-XS EWAD~D-XR EWAD~D-HS Options Ratings Pressure drops Water Pump Kit Combination matrix Dimensions Installation notes Warning Handling Location Acoustic protection Storage Space requirements Technical specification for Air Cooled Screw Chillers General Refrigerant Performance description Sound level and vibrations Dimensions Chiller components page 2/116

3 Features and advantages Low operating cost This chiller range is the result of careful design, aimed to optimize the energy efficiency of the chillers, with the objective of bringing down operating costs and improving installation profitability, effectiveness and economical management. The chillers feature a high efficiency single rotor screw compressor design, large condenser coil surface area for maximum heat transfer and low discharge pressure, advanced technology condenser fans and a plate to plate or shell&tube evaporator with low refrigerant pressure drops. Low operating sound levels Very low sound levels both at full load and part load conditions are achieved by the latest compressor design and by a unique new fan that moves large volume of air at exceptionally low sound levels and by the virtually vibration-free operation. Excellent serviceability Field serviceability has not been sacrificed to meet design performance objectives. The compressor is equipped with discharge, liquid and suction shut off valves. The compressor and serviceable components such as filter-driers are located on the outside edges of the base allowing, together with the shape of the coil, an easy access for inspection and service. Moreover, the MicroTech III controller gives detailed information on the causes of an alarm or fault. Proven reliability Full factory testing of every unit with water hook-up helps in providing a trouble-free start-up. Extensive quality control checks during testing means that each equipment protection and operating control is properly adjusted and operates correctly before it leaves the factory. Infinite capacity control Cooling capacity control is infinitely variable by means of a single screw compressor controlled by microprocessor system. Each unit has infinitely variable capacity control from 100% down to 12.5%. This modulation allows the compressor capacity to exactly match the building cooling load. Chilled water temperature fluctuation is avoided only with a stepless control. Building Load Compressor Load ELWT fluctuation with stepless capacity control In the case that the compressor with load step control is used, the compressor capacity, at partial loads, will be too high or too low compared to the building cooling load. The result is an increase in chiller energy costs, particularly at the part-load conditions at which the chiller operates most of the time. Building Load Compressor Load s with stepless regulation offer benefits that the units with step regulation are unable to match. Only a chiller with step-less regulation, is able to follow the system cooling demand at any time and to deliver chilled water at set-point. Superior control logic The new MicroTech III controller provides an easy to use control environmental. The control logic is designed to provide maximum efficiency and a history of unit operation. One of the greatest benefits is the easy interface with LonWorks, Bacnet, Ethernet TCP/IP or Modbus communications. Code requirements Safety and observant of laws/directives The range is designed and manufactured in accordance with applicable selections of the following: Construction of pressure vessel 97/23/EC (PED) Machinery Directive 2006/42/EC Low Voltage 2006/95/EC Electromagnetic Compatibility 2004/108/EC Electrical & Safety codes EN / EN Manufacturing Quality Stds UNI EN ISO 9001:2004 time ELWT fluctuation with steps capacity control (4 steps) page 3/116

4 Certifications All units manufactured by Daikin are CE marked, complying with European directives in force, concerning manufacturing and safety. On request units can be produced complying with laws in force in non-european countries (ASME, GOST, etc.), and for other applications, such as naval (RINA, etc.). Efficiency and sound configuration The range is available in multiple efficiency and sound versions: Sound level Efficiency level Standard Low Reduced Extra low Standard efficiency EWAD~D-SS EWAD~D-SL EWAD~D-SR EWAD~D-SX High efficiency EWAD~D-XS N.A. EWAD~D-XR N.A. High ambient EWAD~D-HS N.A. N.A. N.A. Versions The range is available is available in three versions: S: Standard efficiency 7 sizes to cover a range from 389 up to 578 kw with an EER up to 2.03 and an ESEER up to 3.56 (data refers to Standard sound configuration) X: High efficiency 11 sizes to cover a range from 247 up to 622 kw with an EER up to 3.20 and an ESEER up to 4.01 (data refers to Standard sound configuration) H: High ambient temperature 15 sizes to cover a range from 195 up to 587 kw with an EER up to 3.07 and an ESEER up to 3.79 (data refers to Standard sound configuration) The EER (Energy Efficiency Ratio) is the ratio of the Cooling Capacity to the Power Input of the unit. The Power Input includes: the power input for operation of the compressor, the power input of all control and safety devices, the power input for fans. The ESEER (European Seasonal Energy Efficiency Ratio) is a weighted formula enabling to take into account the variation of EER with the load rate and the variation of air inlet condenser temperature. ESEER = (A x EER 100% ) + (B x EER 75% ) + (C x EER 50% ) + (D x EER 25% ) A B C D Coefficient 0.03 (3%) 0.33 (33%) 0.41 (41%) 0.23 (23%) Air inlet condenser temperature 35 C 30 C 25 C 20 C Sound levels The range is available in four different sound level configurations: S: Standard sound Condenser fan rotating at 920 rpm, rubber antivibration under compressor L: Low sound Condenser fan rotating at 900 rpm (EWAD D-SL) and 715 rpm (EWAD D-SL), rubber antivibration under compressor, compressor sound enclosure. R: Reduced sound Condenser fan rotating at 680 rpm (EWAD D-SR) and 715 rpm (EWAD D-SR), rubber antivibration under compressor, compressor sound enclosure. X: Extra low sound Condenser fan rotating at 500 rpm, rubber antivibration under compressor, compressor and evaporator sound enclosure. page 4/116

5 General characteristics Cabinet and structure The cabinet is made of galvanized steel sheet and painted to provide a high resistance to corrosion. Colour Ivory White (Munsell code 5Y7.5/1) (±RAL7044).The base frame has an eye-hook to lift the unit with ropes for an easy installation. The weight is uniformly distributed along the profiles of the base and this facilitates the arrangement of the unit. Screw compressors with integrated oil separator The range features two types of single-screw compressors: A) The compressor is semi-hermetic, single-screw type with gate-rotors made of carbon impregnated engineered composite material. The compressor has one slide managed by the unit microprocessor for infinitely modulating the capacity between 100% to 25%. An integrated high efficiency oil separator maximizes the oil separation and standard start is Wye-delta (Y-Δ) type. This compressor is offered on following models: - EWAD180~370D-SL - EWAD180~370D-SR - EWAD210~310D-SX - EWAD250~400D-XS - EWAD240~390D-XR - EWAD200~380D-HS B) The compressor is semi-hermetic, single-screw type with gate-rotor made with the latest high-strength fibre reinforced star material. The compressor has an asymmetric slide regulation managed by the unit controller for infinitely modulating capacity from 100% to 25%. An integrated high efficiency oil separator maximizes the oil separation and standard start is Wye-delta (Y-Δ) type. This compressor is offered on following models: - EWAD390~580D-SS - EWAD400~530D-SL - EWAD400~530D-SR - EWAD370~490D-SX - EWAD470~620D-XS - EWAD460~600D-XR - EWAD420~590D-HS Ecological HFC R-134a refrigerant The compressors have been designed to operate with R-134a, ecological refrigerant with zero ODP (Ozone Depletion Potential) and very low GWP (Global Warming Potential), resulting in low TEWI (Total Equivalent Warming Impact). Evaporator For size EWAD180~200D-SL, EWAD180~190D-SR and EWAD200~210D-HS The units are equipped with a direct expansion plate to plate type evaporator. This heat exchanger is made of stainless steel brazed plates and is covered with a 20mm closed cell insulation material. The exchanger is equipped with a heater for protection against freezing down to 28 C and evaporator water outlet connections of 3. Each evaporator has 1 circuit (one compressor) and is manufactured in accordance to PED approval. Water pressure differential switch on evaporator standard factory mounted. Water filter is standard. All the other units are equipped with a Direct Expansion shell&tube evaporator with copper tubes rolled into steel tubesheets. The evaporators are single-pass on both the refrigerant and water sides for pure counter-flow heat exchange and low refrigerant pressure drops. Both attributes contribute to the heat exchanger effectiveness and total unit s outstanding efficiency. The external shell is covered with a 10mm closed cell insulation material and the evaporator water outlet connections are provided with victaulic kit (as standard). Each evaporator has 2 circuits, one for each compressor and is manufactured in accordance to PED approval. Condenser coils The condenser is manufactured with internally enhanced seamless copper tubes arranged in a staggered row pattern and mechanically expanded into lanced and rippled aluminium condenser fins with full fin collars. An integral sub-cooler circuit provides sub-cooling to effectively eliminate liquid flashing and increase cooling capacity without increasing the power input. Condenser coil fans Fan 710 mm diameter The condenser fans are propeller type with wing-profile blades for achieving better performance. Each fan is protected by a guard. Fan 800 mm diameter The condenser fans are propeller type with high efficiency design blades to maximize performances. The material of the blades is glass reinforced resin and each fan is protected by a guard. page 5/116

6 Fan motors are protected by circuit breakers (installed inside the electrical panel as a standard) and are IP54. Electronic expansion valve The unit is equipped with the most advanced electronic expansion valves to achieve precise control of refrigerant mass flow. As today s system requires improved energy efficiency, tighter temperature control, wider range of operating conditions and incorporate features like remote monitoring and diagnostics, the application of electronic expansion valves becomes mandatory. Electronic expansion valves possess unique features: short opening and closing time, high resolution, positive shut-off function to eliminate use of additional solenoid valve, continuous modulation of mass flow without stress in the refrigerant circuit and corrosion resistance stainless steel body. Electronic expansion valves are typically working with lower ΔP between high and low pressure side, than a thermostatic expansion valve. The electronic expansion valve allows the system to work with low condenser pressure (winter time) without any refrigerant flow problems and with a perfect chilled water leaving temperature control. Refrigerant circuit Each unit has 2 independent refrigerant circuits and each one includes: Compressor with integrated oil separator Air Cooled Condenser Electronic expansion valve Evaporator Discharge line shut off valve Liquid line shut off valve Suction line shut off valve Sight glass with moisture indicator Filter drier Charging valves High pressure switch High and low pressure transducers Electrical control panel Power and control are located in the main panel that is manufactured to ensure protection against all weather conditions. The electrical panel is IP54 and (when opening the doors) internally protected with plexiglas panel against possible accidental contact with electrical components (IP20). The main panel is fitted with a main switch interlocked door. Power Section The power section includes compressors fuses, fan circuit breaker, fan contactors and control circuit transformer. MicroTech III controller MicroTech III controller is installed as standard; it can be used to modify unit set-points and check control parameters. A built-in display shows chiller operating status plus temperatures and pressures of water, refrigerant and air, programmable values, set-points. A sophisticated software with predictive logic, selects the most energy efficient combination of compressors, EEXV and condenser fans to keep stable operating conditions to maximise chiller energy efficiency and reliability. MicroTech III is able to protect critical components based on external signs from its system (such as motor temperatures, refrigerant gas and oil pressures, correct phase sequence, pressure switches and evaporator). The input coming from the high pressure switch cuts all digital output from the controller in less than 50ms, this is an additional security for the equipment. Fast program cycle (200ms) for a precise monitoring of the system. Floating point calculations supported for increased accuracy in P/T conversions. Control section - main features Management of the compressor stepless capacity and fans modulation. Chiller enabled to work in partial failure condition. Full routine operation at condition of: - high ambient temperature value - high thermal load - high evaporator entering water temperature (start-up) page 6/116

7 Display of evaporator entering/leaving water temperature. Display of Outdoor Ambient Temperature. Display of condensing-evaporating temperature and pressure, suction and discharge superheat for each circuit. Leaving water evaporator temperature regulation (temperature tolerance = 0,1 C) Compressor and evaporator pumps hours counter. Display of Status Safety Devices. Number of starts and compressor working hours. Optimized management of compressor load. Fan management according to condensing pressure. Re-start in case of power failure (automatic / manual). Soft Load (optimized management of the compressor load during the start-up). Start at high evaporator water temperature. Return Reset (Set Point Reset based on return water temperature). OAT (Outside Ambient temperature) Reset. Set point Reset (optional). Application and system upgrade with commercial SD cards. Ethernet port for remote or local servicing using standard web browsers. Two different sets of default parameters could be stored for easy restore. Safety device / logic for each refrigerant circuit High pressure (pressure switch). High pressure (transducer). Low pressure (transducer). Fans circuit breaker. High compressor discharge temperature. High motor winding temperature. Phase Monitor. Low pressure ratio. High oil pressure drop Low oil pressure. No pressure change at start. System security Phase monitor. Low Ambient temperature lock-out. Freeze protection. Regulation type Proportional + integral + derivative regulation on the evaporator leaving water output probe. Condensing pressure Condensing pressure can be controlled in according to the entering air temperature to the condenser coil. The fans can be managed either with steps, or with a 0/10V modulating signal or with a mixed 0/10V + Steps strategy to cover all possible operational conditions. MicroTech III MicroTech III built-in terminal has the following features: 164x44 dots liquid crystal display with white back lighting. Supports Unicode fonts for multi-lingual. Key-pad consisting of 3 keys. Push n Roll control for an increased usability. Memory to protect the data. page 7/116

8 General faults alarm relays. Password access to modify the setting. Application security to prevent application tampering or hardware usability with third party applications. Service report displaying all running hours and general conditions. Alarm history memory to allow an easy fault analysis. Supervising systems (on request) MicroTech III remote control MicroTech III is able to communicate to BMS (Building Management System) based on the most common protocols as: ModbusRTU LonWorks, now also based on the international 8040 Standard Chiller Profile and LonMark Technology BacNet BTP certifief over IP and MS/TP (class 4) (Native) Ethernet TCP/IP. Standard options (supplied on basic unit) Evaporator victaulic kit Not available on units EWAD D-SL, EWAD D-SR and EWAD D-HS Evaporator water design pressure (10Bar) Discharge line shut off valves Installed on the discharge port of the compressor to facilitate maintenance operation. Suction line shut off valve Installed on the suction port of the compressor to facilitate maintenance operation. Wye-Delta Compressors starter (Y-Δ) For low inrush current and reduced starting torque. Double set-point Dual leaving water temperature set-points. Phase monitor The phase monitor controls that phases sequence is correct and controls phase loss. Water pressure differential switch on evaporator Not available on units EWAD390D 580D-SS, EWAD D-SL, EWAD D-SR, EWAD D-SX, EWAD D-XS, EWAD D-XR, EWAD D-HS Evaporator electric heater type Electric heater controlled by a thermostat to protect the evaporator from freezing down to -28 C ambient temperature, providing the power supply is on. Electronic expansion device 20 mm evaporator insulation Only for EWAD180~200D-SL, EWAD180~190D-SR, EWAD210D-SX and EWAD200~210D-HS Ambient outside temperature sensor and set-point reset Hour run meter General fault contactor Alarm relay. Set-point reset The leaving water temperature set-point can be overwritten with the following options: 4-20mA from external source (by user); outside ambient temperature; evaporator water temperature Δt. Demand limit User can limit the load of the unit by 4-20mA signal or by network system Alarm from external device Microprocessor is able to receive an alarm signal from an external device (pump etc ). User can decide if this alarm signal will stop the unit or not. Fans circuit breakers Safety device against motor overloading and short circuit Main switch interlock door Options (on request) Total heat recovery Provided with plate to plate heat exchangers to produce hot water. Total heat recovery (1 circuit) Partial heat recovery Plate to plate heat exchangers installed between the compressor discharge and the condenser coil, allowing producing hot water. Brine version Allows the unit to operate down to -15 C leaving liquid temperature (antifreeze required). Evaporator flanged connections Not available for EWAD180~200D-SL, EWAD180~190D-SR, EWAD210D-SX and EWAD200~210D-HS page 8/116

9 Condenser coil guards Cu-Cu condensing coils To give better protection against corrosion by aggressive environments. Cu-Cu-Sn condensing coils To give better protection against corrosion in aggressive environments and by salty air. Alucoat condensing coils Fins are protected by a special acrylic paint with a high resistance to corrosion. Hydronic Kit (single water pump - low or high lifting) (N.A. on EWAD D-SX) Hydronic kit consists of: single direct driven centrifugal pump, water filling system with pressure gauge, safety valve, drain valve. The pump motor is protected by a circuit breaker installed in control panel. The kit is assembled and wired to the control panel. The pipe and pump are protected from freezing with an additional electrical heater. Hydronic Kit (twin water pumps - low or high lifting) (N.A. on EWAD D-SR and on EWAD D-SX). Hydronic kit consists of: twin direct driven centrifugal pumps, water filling system with pressure gauge, safety valve, drain valve. The motor pump is protected by a circuit breaker installed in control panel. The kit is assembled and wired to the control panel. The pipe and pumps are protected from freezing with an additional electrical heater. Double pressure relief valve with diverter Soft starter Electronic starting device to reduce the mechanical stress during compressor start-up. Compressor thermal overload relays Safety devices against compressor motor overloading. This device together with internal motor protection (standard) guarantee the best safety system for compressor motor. Under/Overvoltage control This device control the voltage value of power supply and stop the chiller if the value exceeds the allowed operating limits. Energy Meter This device allows to measure the energy absorbed by the chiller during its life. It is installed inside the control box mounted on a DIN rail and show on a digital display: Line-to-Line Voltage, Phase and Average Current, Active and Reactive Power, Active Energy, Frequency. Capacitors for power factor correction To increase the operating power factor of the unit at nominal operating conditions. The capacitors are dry self-regenerating type with over pressure disconnecting safety device insulated with a no toxic dielectric mix with no PCB or PCT. Current limit To limit maximum absorbed current of the unit whenever is required. Fan silent mode Speedtrol (N.A. on EWAD D-SX) Continuous fan speed modulation on the first fan of each circuit. It allows the unit working with air temperature down to 18 C. Evaporator flow switch Supplied separately to be wired and installed on the evaporator water piping (by the customer). High pressure side manometers (one per circuit) Compressors circuit breakers Fan speed regulation Standard option for EWAD~D-SX To control the fan speed revolution for smooth operating control of the unit. During low ambient temperature operation, this option improves also the sound level of the unit. With Fan speed regulation option, by different microprocessor setting, it is also possible to set the Fan Silent Mode configuration. It means that the microprocessor clock switches the fan at low speed according to the client setting (i.e. Night & Day), providing that the ambient temperature/condensing pressure is allowing the speed change. It allows a perfect condensing control down to 10 C. Rubber type anti vibration mounts Supplied separately, these are positioned under the base of the unit during installation to reduce vibrations. Spring type anti vibration mounts Supplied separately, these are positioned under the base of the unit during installation. Ideal for dampening vibrations for installation on roofs and metallic structures. External tank without cabinet (500 L / 1000 L) External tank with cabinet (500 L / 1000 L) Container kit Witness test Every unit is always tested at the test bench prior to the shipment. On request, a second test can be carried out, at customer s presence, in accordance with the procedures indicated on the test form (please contact the factory) (This test is not available for units with glycol mixtures). Acoustic test On request, a test can be carried out, at customer s presence (please contact the factory) (This test is not available for units with glycol mixtures). page 9/116

10 Nomenclature E W A D D - S S Machine type EWA = Air-cooled chiller, cooling only EWY = Air-cooled chiller, heat pump EWL = Remote condenser chiller ERA = Air cooled condensing unit EWW = Water-cooled chiller, cooling only EWC = Air-cooled chiller, cooling only with centrifugal fan EWT = Air-cooled chiller, cooling only with heat recovery Refrigerant D = R-134a P = R-407c Q = R-410a Capacity class in kw (Cooling) Always 3-digit code Idem as previous Model series Letter A, B, : major modification Inverter - = Non-inverter Z = Inverter Efficiency level S = Standard efficiency X = High efficiency P = Premium efficiency (N.A for this range) H = High ambient Sound level S = Standard noise L = Low noise R = Reduced noise X = Extra low noise C = Cabinet (N.A for this range) Warranty 0 = 1 year of warranty B = 2 years of warranty C = 3 years of warranty =... years of warranty Sequential number 000 = Base model 001 = First order for this model (1 or more units) 002 = Second order for this model (1 or more units) =... order for this model B01 = First order for this model + 1year warranty B02 = Second order for this model (1 or more units) =... order for this model page 10/116

11 Technical specifications EWAD~D-SS TECHNICAL SPECIFICATIONS EWAD~D-SS Capacity (1) Cooling kw Stepless Capacity control Minimum capacity % power input (1) Cooling kw EER (1) ESEER IPLV Casing Dimensions Weight Water heat exchanger Colour Material Operating Weight Water volume Nominal water flow rate Nominal Water pressure drop Insulation material Air heat exchanger Fan Compressor Sound level Refrigerant circuit Drive Diameter Nominal air flow Model Oil charge Quantity Sound Power Sound Pressure (2) Refrigerant type Refrigerant charge N. of circuits Height mm Width mm Length mm kg kg Single Pass Shell&Tube l Cooling l/s Cooling kpa Closed cell High efficiency fin and tube type with integral subcooler Ivory White Galvanized and painted steel sheet Direct propeller type DOL mm l/s Quantity No Speed rpm Motor input kw Semi-hermetic single screw compressor l No Cooling db(a) Cooling db(a) R-134a R-134a R-134a R-134a R-134a kg No Piping connections Evaporator water inlet/outlet mm Safety devices High discharge pressure (pressure switch) High discharge pressure (pressure transducer) Low suction pressure (pressure transducer) Compressor motor protection High discharge temperature Low oil pressure Low pressure ratio High oil filter pressure drop Phase monitor Water freeze protection controller Notes (1) Notes (2) Cooling capacity, unit power input in cooling and EER are based on the following conditions: evaporator 12/7 C; ambient 35 C, unit at full load operation. The values are according to ISO 3744 and are referred to: evaporator 12/7 C, ambient 35 C, full load operation. page 11/116

12 TECHNICAL SPECIFICATIONS EWAD~D-SS Capacity (1) Cooling kw Capacity control Minimum capacity % power input (1) Cooling kw EER (1) ESEER IPLV Casing Dimensions Weight Water heat exchanger Colour Material Operating Weight Water volume Nominal water flow rate Nominal Water pressure drop Insulation material Air heat exchanger Fan Compressor Sound level Refrigerant circuit Drive Diameter Nominal air flow Model Oil charge Quantity Sound Power Sound Pressure (2) Refrigerant type Refrigerant charge N. of circuits Height mm Width mm Length mm kg kg Stepless Ivory White Galvanized and painted steel sheet l 165 Single Pass Shell&Tube 160 Cooling l/s Cooling kpa Closed cell High efficiency fin and tube type with integral subcooler Direct propeller type DOL mm l/s Quantity No. 8 8 Speed rpm Motor input kw l 32 Semi-hermetic single screw compressor 32 No. 2 2 Cooling db(a) Cooling db(a) R-134a R-134a kg No. 2 2 Piping connections Evaporator water inlet/outlet mm Safety devices High discharge pressure (pressure switch) High discharge pressure (pressure transducer) Low suction pressure (pressure transducer) Compressor motor protection High discharge temperature Low oil pressure Low pressure ratio High oil filter pressure drop Phase monitor Water freeze protection controller Notes (1) Notes (2) Cooling capacity, unit power input in cooling and EER are based on the following conditions: evaporator 12/7 C; ambient 35 C, unit at full load operation. The values are according to ISO 3744 and are referred to: evaporator 12/7 C, ambient 35 C, full load operation. page 12/116

13 TECHNICAL SPECIFICATIONS EWAD~D-SS Power Supply Phase Frequency Voltage Voltage Tolerance Maximum starting current Nominal running current cooling Maximum running current Maximum current for wires sizing Hz V Minimum % -10% -10% -10% -10% -10% Maximum % +10% +10% +10% +10% +10% A A A A Fans Nominal running current in cooling A Phase Hz Voltage V Minimum % -10% -10% -10% -10% -10% Voltage Tolerance Compressor Maximum % +10% +10% +10% +10% +10% Maximum running current A Notes Starting method Wye Delta type (Y Δ) Allowed voltage tolerance ± 10%. Voltage unbalance between phases must be within ± 3%. Maximum starting current: starting current of biggest compressor + current of the compressor at 75% maximum load + fans current for the circuit at 75%. Nominal current in cooling mode is referred to the following conditions: evaporator 12 C/7 C; ambient 35 C; compressors + fans current. Maximum running current is based on max compressor absorbed current in its envelope and max fans absorbed current Maximum unit current for wires sizing is based on minimum allowed voltage Maximum current for wires sizing: (compressors full load ampere + fans current) x 1,1. TECHNICAL SPECIFICATIONS EWAD~D-SS Power Supply Phase Frequency Voltage Voltage Tolerance Maximum starting current Nominal running current cooling Maximum running current Maximum current for wires sizing 3 3 Hz V Minimum % -10% -10% Maximum % +10% +10% A A A A Fans Nominal running current in cooling A Phase Hz 3 3 Voltage V Minimum % -10% -10% Voltage Tolerance Compressor Maximum % +10% +10% Maximum running current A Notes Starting method Wye Delta type (Y Δ) Allowed voltage tolerance ± 10%. Voltage unbalance between phases must be within ± 3%. Maximum starting current: starting current of biggest compressor + current of the compressor at 75% maximum load + fans current for the circuit at 75%. Nominal current in cooling mode is referred to the following conditions: evaporator 12 C/7 C; ambient 35 C; compressors + fans current. Maximum running current is based on max compressor absorbed current in its envelope and max fans absorbed current Maximum unit current for wires sizing is based on minimum allowed voltage Maximum current for wires sizing: (compressors full load ampere + fans current) x 1,1. page 13/116

14 EWAD~D-SL TECHNICAL SPECIFICATIONS EWAD~D-SL Capacity (1) Cooling kw Capacity control Stepless Minimum capacity % power input (1) Cooling kw EER (1) ESEER IPLV Casing Dimensions Weight Water heat exchanger Air heat exchanger Fan Compressor Sound level Refrigerant circuit Colour Material Operating Weight Water volume Nominal water flow rate Nominal Water pressure drop Insulation material Drive Diameter Nominal air flow Model Oil charge Quantity Sound Power Sound Pressure (2) Refrigerant type Refrigerant charge N. of circuits Ivory White Galvanized and painted steel sheet Height mm Width mm Length mm kg kg Plate Heat Exchanger Single Pass Shell&Tube l Cooling l/s Cooling kpa Closed cell High efficiency fin and tube type with integral subcooler Direct propeller type DOL mm l/s Quantity No Speed rpm Motor input kw Semi-hermetic single screw compressor l No Cooling db(a) Cooling db(a) R-134a R-134a R-134a R-134a R-134a kg No Piping connections Evaporator water inlet/outlet mm Safety devices High discharge pressure (pressure switch) High discharge pressure (pressure transducer) Low suction pressure (pressure transducer) Compressor motor protection High discharge temperature Low oil pressure Low pressure ratio High oil filter pressure drop Phase monitor Water freeze protection controller Notes (1) Cooling capacity, unit power input in cooling and EER are based on the following conditions: evaporator 12/7 C; ambient 35 C, unit at full load operation. Notes (2) The values are according to ISO 3744 and are referred to: evaporator 12/7 C, ambient 35 C, full load operation. page 14/116

15 TECHNICAL SPECIFICATIONS EWAD~D-SL Capacity (1) Cooling kw Capacity control Stepless Minimum capacity % power input (1) Cooling kw EER (1) ESEER IPLV Casing Dimensions Weight Water heat exchanger Air heat exchanger Fan Compressor Sound level Refrigerant circuit Colour Material Operating Weight Water volume Nominal water flow rate Nominal Water pressure drop Insulation material Drive Diameter Nominal air flow Model Oil charge Quantity Sound Power Sound Pressure (2) Refrigerant type Refrigerant charge N. of circuits Height mm Width mm Length mm kg kg Single Pass Shell&Tube l Cooling l/s Cooling kpa Closed cell Ivory White Galvanized and painted steel sheet High efficiency fin and tube type with integral subcooler Direct propeller type DOL mm l/s Quantity No Speed rpm Motor input kw Semi-hermetic single screw compressor l No Cooling db(a) Cooling db(a) R-134a R-134a R-134a R-134a R-134a kg No Piping connections Evaporator water inlet/outlet mm Safety devices High discharge pressure (pressure switch) High discharge pressure (pressure transducer) Low suction pressure (pressure transducer) Compressor motor protection High discharge temperature Low oil pressure Low pressure ratio High oil filter pressure drop Phase monitor Water freeze protection controller Notes (1) Cooling capacity, unit power input in cooling and EER are based on the following conditions: evaporator 12/7 C; ambient 35 C, unit at full load operation. Notes (2) The values are according to ISO 3744 and are referred to: evaporator 12/7 C, ambient 35 C, full load operation. page 15/116

16 TECHNICAL SPECIFICATIONS EWAD~D-SL Capacity (1) Cooling kw Capacity control Stepless Minimum capacity % power input (1) Cooling kw EER (1) ESEER IPLV Casing Dimensions Weight Water heat exchanger Air heat exchanger Fan Compressor Sound level Refrigerant circuit Colour Material Operating Weight Water volume Nominal water flow rate Nominal Water pressure drop Insulation material Drive Diameter Nominal air flow Model Oil charge Quantity Sound Power Sound Pressure (2) Refrigerant type Refrigerant charge N. of circuits Ivory White Galvanized and painted steel sheet Height mm Width mm Length mm kg kg Single Pass Shell&Tube l Cooling l/s Cooling kpa Closed cell High efficiency fin and tube type with integral subcooler Direct propeller type DOL mm l/s Quantity No Speed rpm Motor input kw Semi-hermetic single screw compressor l No Cooling db(a) Cooling db(a) R-134a R-134a R-134a R-134a kg No Piping connections Evaporator water inlet/outlet mm Safety devices High discharge pressure (pressure switch) High discharge pressure (pressure transducer) Low suction pressure (pressure transducer) Compressor motor protection High discharge temperature Low oil pressure Low pressure ratio High oil filter pressure drop Phase monitor Water freeze protection controller Notes (1) Cooling capacity, unit power input in cooling and EER are based on the following conditions: evaporator 12/7 C; ambient 35 C, unit at full load operation. Notes (2) The values are according to ISO 3744 and are referred to: evaporator 12/7 C, ambient 35 C, full load operation. page 16/116

17 TECHNICAL SPECIFICATIONS EWAD~D-SL Power Supply Compressor Phase Frequency Voltage Voltage Tolerance Phase Voltage Voltage Tolerance Hz V Minimum % -10% -10% -10% -10% -10% Maximum % +10% +10% +10% +10% +10% A A A A Maximum starting current Nominal running current cooling Maximum running current Maximum current for wires sizing Fans Nominal running current in cooling A Hz V Minimum % -10% -10% -10% -10% -10% Maximum % +10% +10% +10% +10% +10% Maximum running current A Notes Starting method Wye Delta type (Y Δ) Allowed voltage tolerance ± 10%. Voltage unbalance between phases must be within ± 3%. Maximum starting current: starting current of biggest compressor + current of the compressor at 75% maximum load + fans current for the circuit at 75%. Nominal current in cooling mode is referred to the following conditions: evaporator 12 C/7 C; ambient 35 C; compressors + fans current. Maximum running current is based on max compressor absorbed current in its envelope and max fans absorbed current Maximum unit current for wires sizing is based on minimum allowed voltage Maximum current for wires sizing: (compressors full load ampere + fans current) x 1,1. TECHNICAL SPECIFICATIONS EWAD~D-SL Power Supply Compressor Phase Frequency Voltage Voltage Tolerance Phase Voltage Voltage Tolerance Hz V Minimum % -10% -10% -10% -10% -10% Maximum % +10% +10% +10% +10% +10% A A A A Maximum starting current Nominal running current cooling Maximum running current Maximum current for wires sizing Fans Nominal running current in cooling A Hz V Minimum % -10% -10% -10% -10% -10% Maximum % +10% +10% +10% +10% +10% Maximum running current A Notes Starting method Wye Delta type (Y Δ) Allowed voltage tolerance ± 10%. Voltage unbalance between phases must be within ± 3%. Maximum starting current: starting current of biggest compressor + current of the compressor at 75% maximum load + fans current for the circuit at 75%. Nominal current in cooling mode is referred to the following conditions: evaporator 12 C/7 C; ambient 35 C; compressors + fans current. Maximum running current is based on max compressor absorbed current in its envelope and max fans absorbed current Maximum unit current for wires sizing is based on minimum allowed voltage Maximum current for wires sizing: (compressors full load ampere + fans current) x 1,1. page 17/116

18 TECHNICAL SPECIFICATIONS EWAD~D-SL Power Supply Compressor Phase Frequency Voltage Voltage Tolerance Phase Voltage Voltage Tolerance Hz V Minimum % -10% -10% -10% -10% Maximum % +10% +10% +10% +10% A A A A Maximum starting current Nominal running current cooling Maximum running current Maximum current for wires sizing Fans Nominal running current in cooling A Hz V Minimum % -10% -10% -10% -10% Maximum % +10% +10% +10% +10% Maximum running current A Notes Starting method Wye Delta type (Y Δ) Allowed voltage tolerance ± 10%. Voltage unbalance between phases must be within ± 3%. Maximum starting current: starting current of biggest compressor + current of the compressor at 75% maximum load + fans current for the circuit at 75% Nominal current in cooling mode is referred to the following conditions: evaporator 12 C/7 C; ambient 35 C; compressors + fans current. Maximum running current is based on max compressor absorbed current in its envelope and max fans absorbed current Maximum unit current for wires sizing is based on minimum allowed voltage Maximum current for wires sizing: (compressors full load ampere + fans current) x 1,1. page 18/116

19 EWAD~D-SR TECHNICAL SPECIFICATIONS EWAD~D-SR Capacity (1) Cooling kw Capacity control Stepless Minimum capacity % power input (1) Cooling kw EER (1) ESEER IPLV Casing Colour Ivory White Material Galvanized and painted steel sheet Dimensions Weight Water heat exchanger Operating Weight Water volume Nominal water flow rate Nominal Water pressure drop Insulation material Air heat exchanger Fan Compressor Sound level Refrigerant circuit Drive Diameter Nominal air flow Model Oil charge Quantity Sound Power Sound Pressure (2) Refrigerant type Refrigerant charge N. of circuits Height mm Width mm Length mm kg kg Plate Heat Exchanger Single Pass Shell&Tube l Cooling l/s Cooling kpa Closed cell High efficiency fin and tube type with integral subcooler mm Direct propeller type DOL l/s Quantity No Speed rpm Motor input kw Semi-hermetic single screw compressor l No Cooling db(a) Cooling db(a) R-134a R-134a R-134a R-134a R-134a kg No Piping connections Evaporator water inlet/outlet mm Safety devices High discharge pressure (pressure switch) High discharge pressure (pressure transducer) Low suction pressure (pressure transducer) Compressor motor protection High discharge temperature Low oil pressure Low pressure ratio High oil filter pressure drop Phase monitor Water freeze protection controller Notes (1) Notes (2) Cooling capacity, unit power input in cooling and EER are based on the following conditions: evaporator 12/7 C; ambient 35 C, unit at full load operation. The values are according to ISO 3744 and are referred to: evaporator 12/7 C, ambient 35 C, full load operation. page 19/116

20 TECHNICAL SPECIFICATIONS EWAD~D-SR Capacity (1) Cooling kw Capacity control Stepless Minimum capacity % power input (1) Cooling kw EER (1) ESEER IPLV Casing Dimensions Weight Water heat exchanger Colour Material Operating Weight Water volume Nominal water flow rate Nominal Water pressure drop Insulation material Air heat exchanger Fan Compressor Sound level Refrigerant circuit Drive Diameter Nominal air flow Model Oil charge Quantity Sound Power Sound Pressure (2) Refrigerant type Refrigerant charge N. of circuits Height mm Width mm Length mm kg kg Single Pass Shell&Tube l Cooling l/s Cooling kpa Closed cell High efficiency fin and tube type with integral subcooler Ivory White Galvanized and painted steel sheet Direct propeller type DOL mm l/s Quantity No Speed rpm Motor input kw Semi-hermetic single screw compressor l No Cooling db(a) Cooling db(a) R-134a R-134a R-134a R-134a R-134a kg No Piping connections Evaporator water inlet/outlet mm Safety devices High discharge pressure (pressure switch) High discharge pressure (pressure transducer) Low suction pressure (pressure transducer) Compressor motor protection High discharge temperature Low oil pressure Low pressure ratio High oil filter pressure drop Phase monitor Water freeze protection controller Notes (1) Notes (2) Cooling capacity, unit power input in cooling and EER are based on the following conditions: evaporator 12/7 C; ambient 35 C, unit at full load operation. The values are according to ISO 3744 and are referred to: evaporator 12/7 C, ambient 35 C, full load operation. page 20/116

21 TECHNICAL SPECIFICATIONS EWAD~D-SR Capacity (1) Cooling kw Capacity control Stepless Minimum capacity % power input (1) Cooling kw EER (1) ESEER IPLV Casing Dimensions Weight Water heat exchanger Colour Material Operating Weight Water volume Nominal water flow rate Nominal Water pressure drop Insulation material Air heat exchanger Fan Compressor Sound level Refrigerant circuit Drive Diameter Nominal air flow Model Oil charge Quantity Sound Power Sound Pressure (2) Refrigerant type Refrigerant charge N. of circuits Ivory White Galvanized and painted steel sheet Height mm Width mm Length mm kg kg Single Pass Shell&Tube l Cooling l/s Cooling kpa Closed cell High efficiency fin and tube type with integral subcooler Direct propeller type DOL mm l/s Quantity No Speed rpm Motor input kw Semi-hermetic single screw compressor l No Cooling db(a) Cooling db(a) R-134a R-134a R-134a R-134a kg No Piping connections Evaporator water inlet/outlet mm Safety devices High discharge pressure (pressure switch) High discharge pressure (pressure transducer) Low suction pressure (pressure transducer) Compressor motor protection High discharge temperature Low oil pressure Low pressure ratio High oil filter pressure drop Phase monitor Water freeze protection controller Notes (1) Notes (2) Cooling capacity, unit power input in cooling and EER are based on the following conditions: evaporator 12/7 C; ambient 35 C, unit at full load operation. The values are according to ISO 3744 and are referred to: evaporator 12/7 C, ambient 35 C, full load operation. page 21/116

22 TECHNICAL SPECIFICATIONS EWAD~D-SR Power Supply Phase Frequency Voltage Voltage Tolerance Maximum starting current Nominal running current cooling Maximum running current Maximum current for wires sizing Hz V Minimum % -10% -10% -10% -10% -10% Maximum % +10% +10% +10% +10% +10% A A A A Fans Nominal running current in cooling A Compressor Phase Voltage Voltage Tolerance Hz V Minimum % -10% -10% -10% -10% -10% Maximum % +10% +10% +10% +10% +10% Maximum running current A Notes Starting method Wye Delta type (Y Δ) Allowed voltage tolerance ± 10%. Voltage unbalance between phases must be within ± 3%. Maximum starting current: starting current of biggest compressor + current of the compressor at 75% maximum load + fans current for the circuit at 75%. Nominal current in cooling mode is referred to the following conditions: evaporator 12 C/7 C; ambient 35 C; compressors + fans current. Maximum running current is based on max compressor absorbed current in its envelope and max fans absorbed current Maximum unit current for wires sizing is based on minimum allowed voltage Maximum current for wires sizing: (compressors full load ampere + fans current) x 1,1. TECHNICAL SPECIFICATIONS EWAD~D-SR Power Supply Maximum starting current Nominal running current cooling Maximum running current Maximum current for wires sizing Hz V Minimum % -10% -10% -10% -10% -10% Maximum % +10% +10% +10% +10% +10% A A A A Fans Nominal running current in cooling A Compressor Phase Frequency Voltage Voltage Tolerance Phase Voltage Voltage Tolerance Hz V Minimum % -10% -10% -10% -10% -10% Maximum % +10% +10% +10% +10% +10% Maximum running current A Notes Starting method Wye Delta type (Y Δ) Allowed voltage tolerance ± 10%. Voltage unbalance between phases must be within ± 3%. Maximum starting current: starting current of biggest compressor + current of the compressor at 75% maximum load + fans current for the circuit at 75%. Nominal current in cooling mode is referred to the following conditions: evaporator 12 C/7 C; ambient 35 C; compressors + fans current. Maximum running current is based on max compressor absorbed current in its envelope and max fans absorbed current Maximum unit current for wires sizing is based on minimum allowed voltage Maximum current for wires sizing: (compressors full load ampere + fans current) x 1,1. page 22/116

23 TECHNICAL SPECIFICATIONS EWAD~D-SR Power Supply Maximum starting current Nominal running current cooling Maximum running current Maximum current for wires sizing Hz V Minimum % -10% -10% -10% -10% Maximum % +10% +10% +10% +10% A A A A Fans Nominal running current in cooling A Compressor Phase Frequency Voltage Voltage Tolerance Phase Voltage Voltage Tolerance Hz V Minimum % -10% -10% -10% -10% Maximum % +10% +10% +10% +10% Maximum running current A Notes Starting method Wye Delta type (Y Δ) Allowed voltage tolerance ± 10%. Voltage unbalance between phases must be within ± 3%. Maximum starting current: starting current of biggest compressor + current of the compressor at 75% maximum load + fans current for the circuit at 75%. Nominal current in cooling mode is referred to the following conditions: evaporator 12 C/7 C; ambient 35 C; compressors + fans current. Maximum running current is based on max compressor absorbed current in its envelope and max fans absorbed current Maximum unit current for wires sizing is based on minimum allowed voltage Maximum current for wires sizing: (compressors full load ampere + fans current) x 1,1. page 23/116

24 EWAD~D-SX TECHNICAL SPECIFICATIONS EWAD~D-SX Capacity (1) Cooling kw Stepless Capacity control Minimum capacity % power input (1) Cooling kw EER (1) ESEER IPLV Casing Dimensions Weight (XN) Water heat exchanger Operating Weight Water volume Nominal water flow rate Nominal Water pressure drop Insulation material Air heat exchanger Fan Compressor Sound level (XN) Refrigerant circuit Colour Material Drive Diameter Nominal air flow Model Oil charge Quantity Sound Power Sound Pressure (2) Refrigerant type Refrigerant charge N. of circuits Ivory White Galvanized and painted steel sheet Height mm Width mm Length mm kg kg Single Pass Shell&Tube l Cooling l/s Cooling kpa Closed cell High efficiency fin and tube type with integral subcooler mm Direct propeller type DOL l/s Quantity No Speed rpm Motor input kw Semi-hermetic single screw compressor l No Cooling db(a) Cooling db(a) R-134a R-134a R-134a R-134a R-134a kg No Piping connections Evaporator water inlet/outlet mm Safety devices High discharge pressure (pressure switch) High discharge pressure (pressure transducer) Low suction pressure (pressure transducer) Compressor motor protection High discharge temperature Low oil pressure Low pressure ratio High oil filter pressure drop Phase monitor Water freeze protection controller Notes (1) Notes (2) Cooling capacity, unit power input in cooling and EER are based on the following conditions: evaporator 12/7 C; ambient 35 C, unit at full load operation. The values are according to ISO 3744 and are referred to: evaporator 12/7 C, ambient 35 C, full load operation. page 24/116

25 TECHNICAL SPECIFICATIONS EWAD~D-SX Capacity (1) Cooling kw Stepless Capacity control Minimum capacity % power input (1) Cooling kw EER (1) ESEER IPLV Casing Dimensions Weight (XN) Water heat exchanger Operating Weight Water volume Nominal water flow rate Nominal Water pressure drop Insulation material Air heat exchanger Fan Compressor Sound level (XN) Refrigerant circuit Colour Material Drive Diameter Nominal air flow Model Oil charge Quantity Sound Power Sound Pressure (2) Refrigerant type Refrigerant charge N. of circuits Height mm Width mm Length mm kg kg Single Pass Shell&Tube l Cooling l/s Cooling kpa Closed cell High efficiency fin and tube type with integral subcooler Ivory White Galvanized and painted steel sheet Direct propeller type DOL mm l/s Quantity No Speed rpm Motor input kw Semi-hermetic single screw compressor l No Cooling db(a) Cooling db(a) R-134a R-134a R-134a R-134a R-134a kg No Piping connections Evaporator water inlet/outlet mm Safety devices High discharge pressure (pressure switch) High discharge pressure (pressure transducer) Low suction pressure (pressure transducer) Compressor motor protection High discharge temperature Low oil pressure Low pressure ratio High oil filter pressure drop Phase monitor Water freeze protection controller Notes (1) Notes (2) Cooling capacity, unit power input in cooling and EER are based on the following conditions: evaporator 12/7 C; ambient 35 C, unit at full load operation. The values are according to ISO 3744 and are referred to: evaporator 12/7 C, ambient 35 C, full load operation. page 25/116

26 TECHNICAL SPECIFICATIONS EWAD~D-SX 490 Capacity (1) Cooling kw 492 Capacity control Minimum capacity % 12.5 power input (1) Cooling kw 187 EER (1) ESEER IPLV Casing Dimensions Weight (XN) Water heat exchanger Operating Weight Water volume Nominal water flow rate Nominal Water pressure drop Insulation material Height mm 2420 Width mm 2234 Length mm 4940 kg 4581 kg 4746 l 165 Cooling l/s Cooling kpa 44.8 Air heat exchanger Fan Compressor Sound level (XN) Refrigerant circuit Colour Material Drive Diameter Nominal air flow Model Oil charge Quantity Sound Power Sound Pressure (2) Refrigerant type Refrigerant charge N. of circuits mm 800 l/s Quantity No. 10 Speed rpm 500 Motor input kw 0.60 l 32 No. 2 Cooling db(a) 86.2 Cooling db(a) 66.0 R-134a kg. 82 No. 2 Stepless Ivory White Galvanized and painted steel sheet Single Pass Shell&Tube Closed cell High efficiency fin and tube type with integral subcooler Direct propeller type DOL Semi-hermetic single screw compressor Piping connections Evaporator water inlet/outlet mm Safety devices High discharge pressure (pressure switch) High discharge pressure (pressure transducer) Low suction pressure (pressure transducer) Compressor motor protection High discharge temperature Low oil pressure Low pressure ratio High oil filter pressure drop Phase monitor Water freeze protection controller Notes (1) Notes (2) Cooling capacity, unit power input in cooling and EER are based on the following conditions: evaporator 12/7 C; The values are according to ISO 3744 and are referred to: evaporator 12/7 C, ambient 35 C, full load operation. page 26/116

27 TECHNICAL SPECIFICATIONS EWAD~D-SX Power Supply Phase Frequency Voltage Maximum starting current Nominal running current cooling Maximum running current Maximum current for wires sizing Hz V Minimum % -10% -10% -10% -10% -10% Maximum % +10% +10% +10% +10% +10% A A A A Fans Nominal running current in cooling A Compressor Voltage Tolerance Phase Voltage Voltage Tolerance Hz V Minimum % -10% -10% -10% -10% -10% Maximum % +10% +10% +10% +10% +10% Maximum running current A Notes Starting method Wye Delta type (Y Δ) Allowed voltage tolerance ± 10%. Voltage unbalance between phases must be within ± 3%. Maximum starting current: starting current of biggest compressor + current of the compressor at 75% maximum load + fans current for the circuit at 75%. Nominal current in cooling mode is referred to the following conditions: evaporator 12 C/7 C; ambient 35 C; compressors + fans current. Maximum running current is based on max compressor absorbed current in its envelope and max fans absorbed current Maximum unit current for wires sizing is based on minimum allowed voltage Maximum current for wires sizing: (compressors full load ampere + fans current) x 1,1. TECHNICAL SPECIFICATIONS EWAD~D-SX Power Supply Hz V Minimum % -10% -10% -10% -10% -10% Maximum % +10% +10% +10% +10% +10% A A A A Fans Nominal running current in cooling A Compressor Phase Frequency Voltage Voltage Tolerance Maximum starting current Nominal running current cooling Maximum running current Maximum current for wires sizing Phase Voltage Voltage Tolerance Hz V Minimum % -10% -10% -10% -10% -10% Maximum % +10% +10% +10% +10% +10% Maximum running current A Notes Starting method Wye Delta type (Y Δ) Allowed voltage tolerance ± 10%. Voltage unbalance between phases must be within ± 3%. Maximum starting current: starting current of biggest compressor + current of the compressor at 75% maximum load + fans current for the circuit at 75%. Nominal current in cooling mode is referred to the following conditions: evaporator 12 C/7 C; ambient 35 C; compressors + fans current. Maximum running current is based on max compressor absorbed current in its envelope and max fans absorbed current Maximum unit current for wires sizing is based on minimum allowed voltage Maximum current for wires sizing: (compressors full load ampere + fans current) x 1,1. page 27/116

28 TECHNICAL SPECIFICATIONS EWAD~D-SX 490 Power Supply Maximum starting current Nominal running current cooling Maximum running current Maximum current for wires sizing 3 Hz 50 V 400 Minimum % -10% Maximum % +10% A 475 A 298 A 360 A 395 Fans Nominal running current in cooling A 13 Compressor Phase Frequency Voltage Voltage Tolerance Phase Voltage Voltage Tolerance Hz 3 V 400 Minimum % -10% Maximum % +10% Maximum running current A Notes Starting method Wye Delta type (Y Δ) Allowed voltage tolerance ± 10%. Voltage unbalance between phases must be within ± 3%. Maximum starting current: starting current of biggest compressor + current of the compressor at 75% maximum load + fans current for the Nominal current in cooling mode is referred to the following conditions: evaporator 12 C/7 C; ambient 35 C; compressors + fans curre Maximum running current is based on max compressor absorbed current in its envelope and max fans absorbed current Maximum unit current for wires sizing is based on minimum allowed voltage Maximum current for wires sizing: (compressors full load ampere + fans current) x 1,1. page 28/116

29 EWAD~D-XS TECHNICAL SPECIFICATIONS EWAD~D-XS Capacity (1) Cooling kw Stepless Capacity control Minimum capacity % power input (1) Cooling kw EER (1) ESEER IPLV Casing Dimensions Weight Water heat exchanger Colour Material Operating Weight Water volume Nominal water flow rate Nominal Water pressure drop Insulation material Air heat exchanger Fan Compressor Sound level Refrigerant circuit Drive Diameter Nominal air flow Model Oil charge Quantity Sound Power Sound Pressure (2) Refrigerant type Refrigerant charge N. of circuits Height mm Width mm Length mm kg kg Single Pass Shell&Tube l Cooling l/s Cooling kpa Closed cell High efficiency fin and tube type with integral subcooler Ivory White Galvanized and painted steel sheet Direct propeller type DOL mm l/s Quantity No Speed rpm Motor input kw Semi-hermetic single screw compressor l No Cooling db(a) Cooling db(a) R-134a R-134a R-134a R-134a R-134a kg No Piping connections Evaporator water inlet/outlet mm Safety devices High discharge pressure (pressure switch) High discharge pressure (pressure transducer) Low suction pressure (pressure transducer) Compressor motor protection High discharge temperature Low oil pressure Low pressure ratio High oil filter pressure drop Phase monitor Water freeze protection controller Notes (1) Notes (2) Cooling capacity, unit power input in cooling and EER are based on the following conditions: evaporator 12/7 C; ambient 35 C, unit at full load operation. The values are according to ISO 3744 and are referred to: evaporator 12/7 C, ambient 35 C, full load operation. page 29/116

30 TECHNICAL SPECIFICATIONS EWAD~D-XS Capacity (1) Cooling kw Stepless Capacity control Minimum capacity % power input (1) Cooling kw EER (1) ESEER IPLV Casing Dimensions Weight Water heat exchanger Colour Material Operating Weight Water volume Nominal water flow rate Nominal Water pressure drop Insulation material Air heat exchanger Fan Compressor Sound level Refrigerant circuit Drive Diameter Nominal air flow Model Oil charge Quantity Sound Power Sound Pressure (2) Refrigerant type Refrigerant charge N. of circuits Height mm Width mm Length mm kg kg Single Pass Shell&Tube l Cooling l/s Cooling kpa Closed cell High efficiency fin and tube type with integral subcooler Ivory White Galvanized and painted steel sheet Direct propeller type DOL mm l/s Quantity No Speed rpm Motor input kw Semi-hermetic single screw compressor l No Cooling db(a) Cooling db(a) R-134a R-134a R-134a R-134a R-134a kg No Piping connections Evaporator water inlet/outlet mm Safety devices High discharge pressure (pressure switch) High discharge pressure (pressure transducer) Low suction pressure (pressure transducer) Compressor motor protection High discharge temperature Low oil pressure Low pressure ratio High oil filter pressure drop Phase monitor Water freeze protection controller Notes (1) Notes (2) Cooling capacity, unit power input in cooling and EER are based on the following conditions: evaporator 12/7 C; The values are according to ISO 3744 and are referred to: evaporator 12/7 C, ambient 35 C, full load operation. page 30/116

31 TECHNICAL SPECIFICATIONS EWAD~D-XS 620 Capacity (1) Cooling kw 622 Capacity control Minimum capacity % 12.5 power input (1) Cooling kw 194 EER (1) ESEER IPLV Casing Dimensions Weight Water heat exchanger Colour Material Operating Weight Water volume Nominal water flow rate Nominal Water pressure drop Insulation material Height mm 2223 Width mm 2234 Length mm 4940 kg 4685 kg 4940 l 255 Cooling l/s Cooling kpa 37.9 Air heat exchanger Fan Compressor Sound level Refrigerant circuit Drive Diameter Nominal air flow Model Oil charge Quantity Sound Power Sound Pressure (2) Refrigerant type Refrigerant charge N. of circuits mm 800 l/s Quantity No. 10 Speed rpm 920 Motor input kw 1.75 l 32 No. 2 Cooling db(a) 99.2 Cooling db(a) 79.0 R-134a kg. 100 No. 2 Stepless Ivory White Galvanized and painted steel sheet Single Pass Shell&Tube Closed cell High efficiency fin and tube type with integral subcooler Direct propeller type DOL Semi-hermetic single screw compressor Piping connections Evaporator water inlet/outlet mm Safety devices High discharge pressure (pressure switch) High discharge pressure (pressure transducer) Low suction pressure (pressure transducer) Compressor motor protection High discharge temperature Low oil pressure Low pressure ratio High oil filter pressure drop Phase monitor Water freeze protection controller Notes (1) Notes (2) Cooling capacity, unit power input in cooling and EER are based on the following conditions: evaporator 12/7 C; The values are according to ISO 3744 and are referred to: evaporator 12/7 C, ambient 35 C, full load operation. page 31/116

32 TECHNICAL SPECIFICATIONS EWAD~D-XS Power Supply Phase Frequency Voltage Voltage Tolerance Maximum starting current Nominal running current cooling Maximum running current Maximum current for wires sizing Hz V Minimum % -10% -10% -10% -10% -10% Maximum % +10% +10% +10% +10% +10% A A A A Fans Nominal running current in cooling A Compressor Phase Voltage Voltage Tolerance Hz V Minimum % -10% -10% -10% -10% -10% Maximum % +10% +10% +10% +10% +10% Maximum running current A Notes Starting method Wye Delta type (Y Δ) Allowed voltage tolerance ± 10%. Voltage unbalance between phases must be within ± 3%. Maximum starting current: starting current of biggest compressor + current of the compressor at 75% maximum load + fans current for the circuit at 75%. Nominal current in cooling mode is referred to the following conditions: evaporator 12 C/7 C; ambient 35 C; compressors + fans current. Maximum running current is based on max compressor absorbed current in its envelope and max fans absorbed current Maximum unit current for wires sizing is based on minimum allowed voltage Maximum current for wires sizing: (compressors full load ampere + fans current) x 1,1. TECHNICAL SPECIFICATIONS EWAD~D-XS Power Supply Phase Frequency Voltage Voltage Tolerance Maximum starting current Nominal running current cooling Maximum running current Maximum current for wires sizing Hz V Minimum % -10% -10% -10% -10% -10% Maximum % +10% +10% +10% +10% +10% A A A A Fans Nominal running current in cooling A Compressor Phase Voltage Voltage Tolerance Hz V Minimum % -10% -10% -10% -10% -10% Maximum % +10% +10% +10% +10% +10% Maximum running current A Notes Starting method Wye Delta type (Y Δ) Allowed voltage tolerance ± 10%. Voltage unbalance between phases must be within ± 3%. Maximum starting current: starting current of biggest compressor + current of the compressor at 75% maximum load + fans current for the circuit at 75%. Nominal current in cooling mode is referred to the following conditions: evaporator 12 C/7 C; ambient 35 C; compressors + fans current. Maximum running current is based on max compressor absorbed current in its envelope and max fans absorbed current Maximum unit current for wires sizing is based on minimum allowed voltage Maximum current for wires sizing: (compressors full load ampere + fans current) x 1,1. page 32/116

33 TECHNICAL SPECIFICATIONS EWAD~D-XS 620 Power Supply Maximum starting current Nominal running current cooling Maximum running current Maximum current for wires sizing 3 Hz 50 V 400 Minimum % -10% Maximum % +10% A 498 A 324 A 409 A 450 Fans Nominal running current in cooling A 40 Compressor Phase Frequency Voltage Voltage Tolerance Phase Voltage Voltage Tolerance Hz 3 V 400 Minimum % -10% Maximum % +10% Maximum running current A Notes Starting method Wye Delta type (Y Δ) Allowed voltage tolerance ± 10%. Voltage unbalance between phases must be within ± 3%. Maximum starting current: starting current of biggest compressor + current of the compressor at 75% maximum load + fans current for the circuitat75% Nominal current in cooling mode is referred to the following conditions: evaporator 12 C/7 C; ambient 35 C; compressors + fans curren Maximum running current is based on max compressor absorbed current in its envelope and max fans absorbed current Maximum unit current for wires sizing is based on minimum allowed voltage Maximum current for wires sizing: (compressors full load ampere + fans current) x 1,1. page 33/116

34 EWAD~D-XR TECHNICAL SPECIFICATIONS EWAD~D-XR Capacity (1) Cooling kw Stepless Capacity control Minimum capacity % power input (1) Cooling kw EER (1) ESEER IPLV Casing Dimensions Weight Water heat exchanger Colour Material Operating Weight Water volume Nominal water flow rate Nominal Water pressure drop Insulation material Air heat exchanger Fan Compressor Sound level Refrigerant circuit Drive Diameter Nominal air flow Model Oil charge Quantity Sound Power Sound Pressure (2) Refrigerant type Refrigerant charge N. of circuits Height mm Width mm Length mm kg kg Single Pass Shell&Tube l Cooling l/s Cooling kpa Closed cell High efficiency fin and tube type with integral subcooler Ivory White Galvanized and painted steel sheet Direct propeller type DOL mm l/s Quantity No Speed rpm Motor input kw Semi-hermetic single screw compressor l No Cooling db(a) Cooling db(a) R-134a R-134a R-134a R-134a R-134a kg No Piping connections Evaporator water inlet/outlet mm Safety devices High discharge pressure (pressure switch) High discharge pressure (pressure transducer) Low suction pressure (pressure transducer) Compressor motor protection High discharge temperature Low oil pressure Low pressure ratio High oil filter pressure drop Phase monitor Water freeze protection controller Notes (1) Notes (2) Cooling capacity, unit power input in cooling and EER are based on the following conditions: evaporator 12/7 C; ambient 35 C, unit at full load operation. The values are according to ISO 3744 and are referred to: evaporator 12/7 C, ambient 35 C, full load operation. page 34/116

35 TECHNICAL SPECIFICATIONS EWAD~D-XR Capacity (1) Cooling kw Stepless Capacity control Minimum capacity % power input (1) Cooling kw EER (1) ESEER IPLV Casing Dimensions Weight Water heat exchanger Colour Material Operating Weight Water volume Nominal water flow rate Nominal Water pressure drop Insulation material Air heat exchanger Fan Compressor Sound level Refrigerant circuit Drive Diameter Nominal air flow Model Oil charge Quantity Sound Power Sound Pressure (2) Refrigerant type Refrigerant charge N. of circuits Height mm Width mm Length mm kg kg Single Pass Shell&Tube l Cooling l/s Cooling kpa Closed cell High efficiency fin and tube type with integral subcooler Ivory White Galvanized and painted steel sheet Direct propeller type DOL mm l/s Quantity No Speed rpm Motor input kw Semi-hermetic single screw compressor l No Cooling db(a) Cooling db(a) R-134a R-134a R-134a R-134a R-134a kg No Piping connections Evaporator water inlet/outlet mm Safety devices High discharge pressure (pressure switch) High discharge pressure (pressure transducer) Low suction pressure (pressure transducer) Compressor motor protection High discharge temperature Low oil pressure Low pressure ratio High oil filter pressure drop Phase monitor Water freeze protection controller Notes (1) Notes (2) Cooling capacity, unit power input in cooling and EER are based on the following conditions: evaporator 12/7 C; ambient 35 C, unit at full load operation. The values are according to ISO 3744 and are referred to: evaporator 12/7 C, ambient 35 C, full load operation. page 35/116

36 TECHNICAL SPECIFICATIONS EWAD~D-XR 600 Capacity (1) Cooling kw 600 Capacity control Minimum capacity % 12.5 power input (1) Cooling kw 198 EER (1) ESEER IPLV Casing Dimensions Weight Water heat exchanger Colour Material Operating Weight Water volume Nominal water flow rate Nominal Water pressure drop Insulation material Height mm 2223 Width mm 2234 Length mm 4940 kg 4785 kg 5040 l 255 Cooling l/s Cooling kpa 36.1 Air heat exchanger Fan Compressor Sound level Refrigerant circuit Drive Diameter Nominal air flow Model Oil charge Quantity Sound Power Sound Pressure (2) Refrigerant type Refrigerant charge N. of circuits mm 800 l/s Quantity No. 10 Speed rpm 715 Motor input kw 0.78 l 32 No. 2 Cooling db(a) 93.7 Cooling db(a) 73.5 R-134a kg. 104 No. 2 Stepless Ivory White Galvanized and painted steel sheet Single Pass Shell&Tube Closed cell High efficiency fin and tube type with integral subcooler Direct propeller type DOL Semi-hermetic single screw compressor Piping connections Evaporator water inlet/outlet mm Safety devices High discharge pressure (pressure switch) High discharge pressure (pressure transducer) Low suction pressure (pressure transducer) Compressor motor protection High discharge temperature Low oil pressure Low pressure ratio High oil filter pressure drop Phase monitor Water freeze protection controller Notes (1) Notes (2) Cooling capacity, unit power input in cooling and EER are based on the following conditions: evaporator 12/7 C; ambient 35 C, unit at full load operation. The values are according to ISO 3744 and are referred to: evaporator 12/7 C, ambient 35 C, full load operation. page 36/116

37 TECHNICAL SPECIFICATIONS EWAD~D-XR Power Supply Phase Frequency Voltage Voltage Tolerance Maximum starting current Nominal running current cooling Maximum running current Maximum current for wires sizing Hz V Minimum % -10% -10% -10% -10% -10% Maximum % +10% +10% +10% +10% +10% A A A A Fans Nominal running current in cooling A Compressor Phase Voltage Voltage Tolerance Hz V Minimum % -10% -10% -10% -10% -10% Maximum % +10% +10% +10% +10% +10% Maximum running current A Notes Starting method Wye Delta type (Y Δ) Allowed voltage tolerance ± 10%. Voltage unbalance between phases must be within ± 3%. Maximum starting current: starting current of biggest compressor + current of the compressor at 75% maximum load + fans current for the circuit at 75%. Nominal current in cooling mode is referred to the following conditions: evaporator 12 C/7 C; ambient 35 C; compressors + fans current. Maximum running current is based on max compressor absorbed current in its envelope and max fans absorbed current Maximum unit current for wires sizing is based on minimum allowed voltage Maximum current for wires sizing: (compressors full load ampere + fans current) x 1,1. TECHNICAL SPECIFICATIONS EWAD~D-XR Power Supply Phase Frequency Voltage Voltage Tolerance Maximum starting current Nominal running current cooling Maximum running current Maximum current for wires sizing Hz V Minimum % -10% -10% -10% -10% -10% Maximum % +10% +10% +10% +10% +10% A A A A Fans Nominal running current in cooling A Compressor Phase Voltage Voltage Tolerance Hz V Minimum % -10% -10% -10% -10% -10% Maximum % +10% +10% +10% +10% +10% Maximum running current A Notes Starting method Wye Delta type (Y Δ) Allowed voltage tolerance ± 10%. Voltage unbalance between phases must be within ± 3%. Maximum starting current: starting current of biggest compressor + current of the compressor at 75% maximum load + fans current for the circuit at 75%. Nominal current in cooling mode is referred to the following conditions: evaporator 12 C/7 C; ambient 35 C; compressors + fans current. Maximum running current is based on max compressor absorbed current in its envelope and max fans absorbed current Maximum unit current for wires sizing is based on minimum allowed voltage Maximum current for wires sizing: (compressors full load ampere + fans current) x 1,1. page 37/116

38 TECHNICAL SPECIFICATIONS EWAD~D-XR 600 Power Supply Maximum starting current Nominal running current cooling Maximum running current Maximum current for wires sizing 3 Hz 50 V 400 Minimum % -10% Maximum % +10% A 491 A 330 A 395 A 435 Fans Nominal running current in cooling A 26 Compressor Phase Frequency Voltage Voltage Tolerance Phase Voltage Voltage Tolerance Hz 3 V 400 Minimum % -10% Maximum % +10% Maximum running current A Notes Starting method Allowed voltage tolerance ± 10%. Voltage unbalance between phases must be within ± 3%. Maximum starting current: starting current of biggest compressor + current of the compressor at 75% maximum load + fans current for the circuit at 75% Nominal current in cooling mode is referred to the following conditions: evaporator 12 C/7 C; ambient 35 C; compressors + fans curre Maximum running current is based on max compressor absorbed current in its envelope and max fans absorbed current Maximum unit current for wires sizing is based on minimum allowed voltage Maximum current for wires sizing: (compressors full load ampere + fans current) x 1,1. page 38/116

39 EWAD~D-HS TECHNICAL SPECIFICATIONS EWAD~D-HS Capacity (1) Cooling kw Capacity control Stepless Minimum capacity % power input (1) Cooling kw EER (1) ESEER IPLV Casing Colour Ivory White Material Galvanized and painted steel sheet Dimensions Weight Water heat exchanger Operating Weight Water volume Nominal water flow rate Nominal Water pressure drop Insulation material Air heat exchanger Fan Compressor Sound level Refrigerant circuit Drive Diameter Nominal air flow Model Oil charge Quantity Sound Power Sound Pressure (2) Refrigerant type Refrigerant charge N. of circuits Height mm Width mm Length mm kg kg Plate Heat Exchanger Single Pass Shell&Tube l Cooling l/s Cooling kpa Closed cell High efficiency fin and tube type with integral subcooler mm Direct propeller type DOL l/s Quantity No Speed rpm Motor input kw Semi-hermetic single screw compressor l No Cooling db(a) Cooling db(a) R-134a R-134a R-134a R-134a R-134a kg No Piping connections Evaporator water inlet/outlet mm Safety devices High discharge pressure (pressure switch) High discharge pressure (pressure transducer) Low suction pressure (pressure transducer) Compressor motor protection High discharge temperature Low oil pressure Low pressure ratio High oil filter pressure drop Phase monitor Water freeze protection controller Notes (1) Notes (2) Cooling capacity, unit power input in cooling and EER are based on the following conditions: evaporator 12/7 C; ambient 35 C, unit at full load operation. The values are according to ISO 3744 and are referred to: evaporator 12/7 C, ambient 35 C, full load operation. page 39/116

40 TECHNICAL SPECIFICATIONS EWAD~D-HS Capacity (1) Cooling kw Capacity control Stepless Minimum capacity % power input (1) Cooling kw EER (1) ESEER IPLV Casing Colour Ivory White Material Galvanized and painted steel sheet Dimensions Weight Water heat exchanger Operating Weight Water volume Nominal water flow rate Nominal Water pressure drop Insulation material Air heat exchanger Fan Compressor Sound level Refrigerant circuit Drive Diameter Nominal air flow Model Oil charge Quantity Sound Power Sound Pressure (2) Refrigerant type Refrigerant charge N. of circuits Height mm Width mm Length mm kg kg Single Pass Shell&Tube l Cooling l/s Cooling kpa Closed cell High efficiency fin and tube type with integral subcooler mm Direct propeller type DOL l/s Quantity No Speed rpm Motor input kw Semi-hermetic single screw compressor l No Cooling db(a) Cooling db(a) R-134a R-134a R-134a R-134a R-134a kg No Piping connections Evaporator water inlet/outlet mm Safety devices High discharge pressure (pressure switch) High discharge pressure (pressure transducer) Low suction pressure (pressure transducer) Compressor motor protection High discharge temperature Low oil pressure Low pressure ratio High oil filter pressure drop Phase monitor Water freeze protection controller Notes (1) Notes (2) Cooling capacity, unit power input in cooling and EER are based on the following conditions: evaporator 12/7 C; The values are according to ISO 3744 and are referred to: evaporator 12/7 C, ambient 35 C, full load operation. page 40/116

41 TECHNICAL SPECIFICATIONS EWAD~D-HS Capacity (1) Cooling kw Capacity control Stepless Minimum capacity % power input (1) Cooling kw EER (1) ESEER IPLV Casing Colour Ivory White Material Galvanized and painted steel sheet Dimensions Weight Water heat exchanger Operating Weight Water volume Nominal water flow rate Nominal Water pressure drop Insulation material Air heat exchanger Fan Compressor Sound level Refrigerant circuit Drive Diameter Nominal air flow Model Oil charge Quantity Sound Power Sound Pressure (2) Refrigerant type Refrigerant charge N. of circuits Height mm Width mm Length mm kg kg Single Pass Shell&Tube l Cooling l/s Cooling kpa Closed cell High efficiency fin and tube type with integral subcooler Direct propeller type mm l/s Quantity No Speed rpm Motor input kw Semi-hermetic single screw compressor l No Cooling db(a) Cooling db(a) R-134a R-134a R-134a R-134a R-134a kg No Piping connections Evaporator water inlet/outlet mm Safety devices High discharge pressure (pressure switch) High discharge pressure (pressure transducer) Low suction pressure (pressure transducer) Compressor motor protection High discharge temperature Low oil pressure Low pressure ratio High oil filter pressure drop Phase monitor Water freeze protection controller Notes (1) Notes (2) Cooling capacity, unit power input in cooling and EER are based on the following conditions: evaporator 12/7 C; ambient 35 C, unit at full load operation. The values are according to ISO 3744 and are referred to: evaporator 12/7 C, ambient 35 C, full load operation. page 41/116

42 TECHNICAL SPECIFICATIONS EWAD~D-HS Power Supply Nominal running current cooling Maximum running current Maximum current for wires sizing Hz V Minimum % -10% -10% -10% -10% -10% Maximum % +10% +10% +10% +10% +10% A A A A Fans Nominal running current in cooling A Compressor Phase Frequency Voltage Voltage Tolerance Maximum starting current Phase Voltage Voltage Tolerance Hz V Minimum % -10% -10% -10% -10% -10% Maximum % +10% +10% +10% +10% +10% Maximum running current A Notes Starting method Wye Delta type (Y Δ) Allowed voltage tolerance ± 10%. Voltage unbalance between phases must be within ± 3%. Maximum starting current: starting current of biggest compressor + current of the compressor at 75% maximum load + fans current for the circuit at 75%. Nominal current in cooling mode is referred to the following conditions: evaporator 12 C/7 C; ambient 35 C; compressors + fans current. Maximum running current is based on max compressor absorbed current in its envelope and max fans absorbed current Maximum unit current for wires sizing is based on minimum allowed voltage Maximum current for wires sizing: (compressors full load ampere + fans current) x 1,1. TECHNICAL SPECIFICATIONS EWAD~D-HS Power Supply Nominal running current cooling Maximum running current Maximum current for wires sizing Hz V Minimum % -10% -10% -10% -10% -10% Maximum % +10% +10% +10% +10% +10% A A A A Fans Nominal running current in cooling A Compressor Phase Frequency Voltage Voltage Tolerance Maximum starting current Phase Voltage Voltage Tolerance Hz V Minimum % -10% -10% -10% -10% -10% Maximum % +10% +10% +10% +10% +10% Maximum running current A Notes Starting method Wye Delta type (Y Δ) Allowed voltage tolerance ± 10%. Voltage unbalance between phases must be within ± 3%. Maximum starting current: starting current of biggest compressor + current of the compressor at 75% maximum load + fans current for the circuit at 75%. Nominal current in cooling mode is referred to the following conditions: evaporator 12 C/7 C; ambient 35 C; compressors + fans current. Maximum running current is based on max compressor absorbed current in its envelope and max fans absorbed current Maximum unit current for wires sizing is based on minimum allowed voltage Maximum current for wires sizing: (compressors full load ampere + fans current) x 1,1. page 42/116

43 TECHNICAL SPECIFICATIONS EWAD~D-HS Power Supply Nominal running current cooling Maximum running current Maximum current for wires sizing Hz V Minimum % -10% -10% -10% -10% -10% Maximum % +10% +10% +10% +10% +10% A A A A Fans Nominal running current in cooling A Compressor Phase Frequency Voltage Voltage Tolerance Maximum starting current Phase Voltage Voltage Tolerance Hz V Minimum % -10% -10% -10% -10% -10% Maximum % +10% +10% +10% +10% +10% Maximum running current A Notes Starting method Wye Delta type (Y Δ) Allowed voltage tolerance ± 10%. Voltage unbalance between phases must be within ± 3%. Maximum starting current: starting current of biggest compressor + current of the compressor at 75% maximum load + fans current for the circuit at 75%. Nominal current in cooling mode is referred to the following conditions: evaporator 12 C/7 C; ambient 35 C; compressors + fans current. Maximum running current is based on max compressor absorbed current in its envelope and max fans absorbed current Maximum unit current for wires sizing is based on minimum allowed voltage Maximum current for wires sizing: (compressors full load ampere + fans current) x 1,1. page 43/116

44 Sound levels page 44/116

45 EWAD~D-SS size Sound pressure level at 1 m from the unit in semispheric free field (rif. 2 x 10-5 Pa) Power 63 Hz 125 Hz 250 Hz 500 Hz 1000 Hz 2000 Hz 4000 Hz 8000 Hz db(a) db(a) The values are according to ISO 3744 and are referred to: evaporator 12/7 C, air ambient 35 C, full load operation EWAD~D-SL size Sound pressure level at 1 m from the unit in semispheric free field (rif. 2 x 10-5 Pa) Power 63 Hz 125 Hz 250 Hz 500 Hz 1000 Hz 2000 Hz 4000 Hz 8000 Hz db(a) db(a) The values are according to ISO 3744 and are referred to: evaporator 12/7 C, air ambient 35 C, full load operation EWAD~D-SR size Sound pressure level at 1 m from the unit in semispheric free field (rif. 2 x 10-5 Pa) Power 63 Hz 125 Hz 250 Hz 500 Hz 1000 Hz 2000 Hz 4000 Hz 8000 Hz db(a) db(a) The values are according to ISO 3744 and are referred to: evaporator 12/7 C, air ambient 35 C, full load operation EWAD~D-SX size Sound pressure level at 1 m from the unit in semispheric free field (rif. 2 x 10-5 Pa) Power 63 Hz 125 Hz 250 Hz 500 Hz 1000 Hz 2000 Hz 4000 Hz 8000 Hz db(a) db(a) The values are according to ISO 3744 and are referred to: evaporator 12/7 C, air ambient 35 C, full load operation page 45/116

46 EWAD~D-XS size Sound pressure level at 1 m from the unit in semispheric free field (rif. 2 x 10-5 Pa) Power 63 Hz 125 Hz 250 Hz 500 Hz 1000 Hz 2000 Hz 4000 Hz 8000 Hz db(a) db(a) The values are according to ISO 3744 and are referred to: evaporator 12/7 C, air ambient 35 C, full load operation EWAD~D-XR size Sound pressure level at 1 m from the unit in semispheric free field (rif. 2 x 10-5 Pa) Power 63 Hz 125 Hz 250 Hz 500 Hz 1000 Hz 2000 Hz 4000 Hz 8000 Hz db(a) db(a) The values are according to ISO 3744 and are referred to: evaporator 12/7 C, air ambient 35 C, full load operation EWAD~D-HS size Sound pressure level at 1 m from the unit in semispheric free field (rif. 2 x 10-5 Pa) Power 63 Hz 125 Hz 250 Hz 500 Hz 1000 Hz 2000 Hz 4000 Hz 8000 Hz db(a) db(a) The values are according to ISO 3744 and are referred to: evaporator 12/7 C, air ambient 35 C, full load operation page 46/116

47 Sound pressure reduction values for different distances EWAD~D-SS size Distance 1m 5m 10m 15m 20m 25m 50m Values are db(a) (pressure level) EWAD~D-SL size Distance 1m 5m 10m 15m 20m 25m 50m Values are db(a) (pressure level) EWAD~D-SR size Distance 1m 5m 10m 15m 20m 25m 50m Values are db(a) (pressure level) EWAD~D-SX size Distance 1m 5m 10m 15m 20m 25m 50m Values are db(a) (pressure level) page 47/116

48 EWAD~D-XS size Distance 1m 5m 10m 15m 20m 25m 50m Values are db(a) (pressure level) EWAD~D-XR size Distance 1m 5m 10m 15m 20m 25m 50m Values are db(a) (pressure level) EWAD~D-HS size Distance 1m 5m 10m 15m 20m 25m 50m Values are db(a) (pressure level) page 48/116

49 Operating limits "ICE mode" operation only Condenser Inlet Air Temp. ( C) Operation with Glycol (below 4 C Evap LWT) Fan Speed Modulation required (below 18 C Amb. Temp for less than 3 fans units, below 10 C for 3 or more fans units) 15 Speedtroll required (below 10 C Condens. Air Temp.) Evaporator Leaving Water Temp. ( C) Table 1 - Water heat exchanger - Minimum and maximum water Δt Max evaporator water Δt C 8 Min evaporator water Δt C 4 Table 2 - Water heat exchanger - Fouling factors Fouling factors m 2 C / kw Cooling capacity correction factor Power input correction factor EER correction factor Table 3 - Air heat exchanger - Altitude correction factors Elevation above sea level (m) Barometric pressure (mbar) Cooling capacity correction factor Power input correction factor Maximum operating altitude is 2000 m above sea level - Contact factory in case the unit has to be installed at altitudes between 1000 and 2000 m above sea level Table Minimum glycol percentage for low water temperature EWLT ( C) Ethylene glycol (%) Propylene glycol (%) ELWT (Evaporator Leaving Water Temperature ( C) - Minimum glycol percentage to be used with evaporator leaving water temperature below 4 C to prevent freezing of water circuit. page 49/116

50 Table Minimum glycol percentage for low air ambient temperature Air Ambient Temperature ( C) (2) Ethylene glycol (%) (1) Air Ambient Temperature ( C) (2) 10% -3 20% -7 30% % -20 Propylene glycol (%) (1) 10% 20% 30% 40% - Minimum glycol percentage to prevent freezing of water circuit at indicated air ambient temperature - Air ambient temperature do exceed the operating limits of the unit, as protection of water circuit may be needed in winter season at nonworking conditions. Table 5 - Correction factors for low evaporator leaving water temperature (EWLT < 4 C) EWLT ( C) Cooling Capacity Compressor Power Input - ELWT (Evaporator Leaving Water Temperature ( C) - Correction factors have to be applied at working conditions: evaporator leaving water temperature 7 C Table 6 - Correction factors for water and glycol mixture Ethylene Glycol Ethylene Glycol (%) Cooling Capacity Compressor Power Input Flow Rate (Δt) Evaporator Pressure Drop Cooling Capacity Compressor Power Input Propylene Glycol Flow Rate (Δt) Evaporator Pressure Drop - Contact factory for water temperature out of operating limits 10% 20% 30% 40% 50% How to use correction factors proposed in the previous tables A) Mixture Water and Glycol Evaporator leaving water temperature > 4 C - depending from the type and percentage (%) of glycol filled in the circuit (see table 4.2 and 6) - multiply the Cooling Capacity, the Compressor Power Input by the Correction factor of Table 6 - starting from this new value of Cooling Capacity, calculate the Flow Rate (l/s) and the Evaporatore Pressure Drop (kpa) - now multiply the new Flow Rate and the new Evaporator Pressure Drop by the Correction Factors of Table 6 Example Size: EWAD390D-SS Mixture: Water Working condition: ELWT 12/7 C Condenser inlet air temperature 35 C - Cooling capacity: 389 kw - Power input: 152 kw - Flow rate (Δt 5 C): l/s - Evaporator pressure drop: 46 kpa Mixture: Water + Ethylene Glycol 30% (for a winter air temperature up to -15 C) Working condition: ELWT 12/7 C Condenser inlet air temperature 35 C - Cooling capacity: 389 x = 378 kw - Power input: 152 x = 150 kw - Flow rate (Δt 5 C): 18 (referred to 378 kw) x = l/s - Evaporator pressure drop: 49 (refererd to l/s) x = 58 kpa B) Mixture Water and Glycol Evaporator leaving water temperature < 4 C - depending from the type and percentage (%) of glycol filled in the circuit (see table 4.1 and 4.2 and table 6) - depending from the evaporator leaving water temperature (see table 5) - multiply the Cooling Capacity, the Compressor Power Input by the Correction factor of Table 5 and Table 6 - starting from this new value of Cooling Capacity, calculate the Flow Rate (l/s) and the Evaporatore Pressure Drop (kpa) - now multiply the new Flow Rate and the new Evaporator Pressure Drop by the Correction Factors of Table 6 page 50/116

51 Example Size: EWAD390D-SS Mixture: Water Standard working condition ELWT 12/7 C Condenser inlet air temperature 30 C - Cooling capacity: 412 kw - Power input: 139 kw - Flow rate (Δt 5 C): 19.7 l/s - Evaporator pressure drop: 51 kpa Mixture: Water + Glycol 30% (for a low evaporator leaving temperature of -1/-6 C) Working condition: ELWT -1/-6 C Condenser inlet air temperature 30 C - Cooling capacity: 412 x x = 245 kw - Power input: 139 x x = 119 kw - Flow rate (Δt 5 C): l/s (referred to 245 kw) x = l/s - Evaporator pressure drop: 23 kpa (referred to l/s) x = 27 kpa Table Available fan static pressure correction factors External Static Pressure (Pa) Cooling Capacity (kw) Correction factor Compr. Power Input (kw) Correction factor Reduction of Max CIAT ( C) CIAT: Condenser Inlet Air Temperature ESP table refers to fan diameter Ø800, available on units as follows: EWAD390~580D SS EWAD470~620D XS EWAD420~590D HS Table Available fan static pressure correction factors External Static Pressure (Pa) Cooling Capacity (kw) Correction factor Compr. Power Input (kw) Correction factor Reduction of Max CIAT ( C) CIAT: Condenser Inlet Air Temperature ESP table refers to fan diameter Ø800, available on units as follows: How to use the Correction factors proposed in the previous tables EWAD320~530D-SL/SR EWAD460~600D-XR Example Size: EWAD390D-SS - External static pressure 0 Pa - Working condition: ELWT 12/7 C Condenser inlet air temperature 35 C - Cooling capacity: 389 kw - Power input: 152 kw - Maximum CIAT 48 C (see graphic operating limit) - External static pressure 40 Pa - Working condition: ELWT 12/7 C Condenser inlet air temperature 35 C - Cooling capacity: 389 x = 386 kw - Power input: 152 x 1.018= 155 kw - Maximum CIAT = 47 C page 51/116

52 Water charge, flow and quality Cooling Water Heated water (2) Cooled Water Circulating System Once Flow Low temperature High temperature Items (1) (5) Tendency if out of criteria Circulating water Supply water (4) Flowing water Circulating water Supply water (4) Circulating water Supply water (4) Circulating water Supply water (4) [Below 20 C] [20 C ~ 60 C] [60 C ~ 80 C] ph at 25 C 6.5 ~ ~ ~ ~ ~ ~ ~ ~ ~ 8.0 Corrosion + Scale Electrical conductivity [ms/m] at 25 C Below 80 Below 30 Below 40 Below 40 Below 30 Below 30 Below 30 Below 30 Below 30 Corrosion + Scale (µs/cm) at 25 C (Below 800) (Below 300) (Below 400) (Below 400) (Below 300) (Below 300) (Below 300) (Below 300) (Below 300) Corrosion + Scale Chloride ion [mgcl 2- /l] Below 200 Below 50 Below 50 Below 50 Below 50 Below 50 Below 50 Below 30 Below 30 Corrosion Sulfate ion [mgso 2-4/l] Below 200 Below 50 Below 50 Below 50 Below 50 Below 50 Below 50 Below 30 Below 30 Corrosion M-alkalinity (ph4.8) [mgcaco 3 /l] Below 100 Below 50 Below 50 Below 50 Below 50 Below 50 Below 50 Below 50 Below 50 Scale Total hardness [mgcaco 3/l] Below 200 Below 70 Below 70 Below 70 Below 70 Below 70 Below 70 Below 70 Below 70 Scale Calcium harness [mgcaco 3/l] Below 150 Below 50 Below 50 Below 50 Below 50 Below 50 Below 50 Below 50 Below 50 Scale Silca ion [mgsio 2/l] Below 50 Below 30 Below 30 Below 30 Below 30 Below 30 Below 30 Below 30 Below 30 Scale Iron [mgfe/l] Below 1.0 Below 0.3 Below 1.0 Below 1.0 Below 0.3 Below 1.0 Below 0.3 Below 1.0 Below 0.3 Corrosion + Scale Copper [mgcu/l] Below 0.3 Below 0.1 Below 1.0 Below 1.0 Below 1.0 Below 1.0 Below 0.1 Below 1.0 Below 0.1 Corrosion Sulfite ion [mgs 2- /l] Not detectable Not detectable Not detectable Not detectable Not detectable Not detectable Not detectable Not detectable Not detectable Corrosion Ammonium ion [mgnh + 4/l] Below 1.0 Below 0.1 Below 1.0 Below 1.0 Below 0.1 Below 0.3 Below 0.1 Below 0.1 Below 0.1 Corrosion Remaining chloride [mgcl/l] Below 0.3 Below 0.3 Below 0.3 Below 0.3 Below 0.3 Below 0.25 Below 0.3 Below 0.1 Below 0.3 Corrosion Free carbide [mgco 2/l] Below 4.0 Below 4.0 Below 4.0 Below 4.0 Below 4.0 Below 0.4 Below 4.0 Below 0.4 Below 4.0 Corrosion Items to be referred to Items to be controlled: Stability index 6.0 ~ 7.0 Corrosion + Scale 1 Names, definitions and units are according to JIS K s and figures between brackets are old units published as reference only. 2 In case of using heated water (more than 40 C), corrosion is generally noticeable. Especially when the iron materials is in direct contact with water without any protection shields, it is desireable to give the valid measure for corrosion. E.g. chemical measure 3 In the cooling water using hermetic cooling tower, close circuit water is according to heated water standard, and scattered water is according to cooling water standard. 4 Supply water is considered drink water, industrial water and ground water except for genuine water, neutral water and soft water. 5 The above mentioned items are representable items in corrosion and scale cases. page 52/116

53 Water content in cooling circuits The cooled water distribution circuits should have minimum water content to avoid excessive compressors start and stop. In fact, each time the compressor starts up, an excessive quantity of oil goes from the compressor sump and simultaneously there is a rise in the temperature of the compressor motor s stator due to the inrush current during the start-up. To prevent damage to the compressors, it has been envisaged the application of a device to limit frequent stops and restarts. During the span of one hour there will be no more than 6 starts of the compressor. The plant side should therefore ensure that the overall water content allows a more constant functioning of the unit and consequently greater environmental comfort. The minimum water content per unit should be calculated using this simplified formula: For 2 compressors unit M (liters) = ( x ΔT( C) ) x P(kW) where: M minimum water content per unit expressed in litres P Cooling Capacity of the unit expressed in kw ΔT evaporator entering / leaving water temperature difference expressed in C This formula is valid for: - standard microprocessor parameters For more accurate determination of quantity of water, it is advisable to contact the designer of the plant. page 53/116

54 Standard ratings Standard ratings EWAD~D-SS ELWT ( C) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Notes: Cc (cooling capacity) - Pi (unit power input) Qwe (evaporator water flow) - Pdwe (evaporator pressure drop) ELWT (evaporator leaving water temperature Δt 5 C). Data are referred to 0,0176 m2 C/kW evaporator fouling factor page 54/116

55 ELWT ( C) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Notes: Cc (cooling capacity) - Pi (unit power input) Qwe (evaporator water flow) - Pdwe (evaporator pressure drop) ELWT (evaporator leaving water temperature Δt 5 C). Data are referred to 0,0176 m2 C/kW evaporator fouling factor page 55/116

56 ELWT ( C) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Notes: Cc (cooling capacity) - Pi (unit power input) Qwe (evaporator water flow) - Pdwe (evaporator pressure drop) ELWT (evaporator leaving water temperature Δt 5 C). Data are referred to 0,0176 m2 C/kW evaporator fouling factor page 56/116

57 580 ELWT ( C) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Notes: Cc (cooling capacity) - Pi (unit power input) Qwe (evaporator water flow) - Pdwe (evaporator pressure drop) ELWT (evaporator leaving water temperature Δt 5 C). Data are referred to 0,0176 m2 C/kW evaporator fouling factor page 57/116

58 EWAD~D-SL ELWT ( C) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Notes: Cc (cooling capacity) - Pi (unit power input) Qwe (evaporator water flow) - Pdwe (evaporator pressure drop) ELWT (evaporator leaving water temperature Δt 5 C). Data are referred to 0,0176 m2 C/kW evaporator fouling factor page 58/116

59 ELWT ( C) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Notes: Cc (cooling capacity) - Pi (unit power input) Qwe (evaporator water flow) - Pdwe (evaporator pressure drop) ELWT (evaporator leaving water temperature Δt 5 C). Data are referred to 0,0176 m2 C/kW evaporator fouling factor page 59/116

60 ELWT ( C) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Notes: Cc (cooling capacity) - Pi (unit power input) Qwe (evaporator water flow) - Pdwe (evaporator pressure drop) ELWT (evaporator leaving water temperature Δt 5 C). Data are referred to 0,0176 m2 C/kW evaporator fouling factor page 60/116

61 ELWT ( C) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Notes: Cc (cooling capacity) - Pi (unit power input) Qwe (evaporator water flow) - Pdwe (evaporator pressure drop) ELWT (evaporator leaving water temperature Δt 5 C). Data are referred to 0,0176 m2 C/kW evaporator fouling factor page 61/116

62 ELWT ( C) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Notes: Cc (cooling capacity) - Pi (unit power input) Qwe (evaporator water flow) - Pdwe (evaporator pressure drop) ELWT (evaporator leaving water temperature Δt 5 C). Data are referred to 0,0176 m2 C/kW evaporator fouling factor page 62/116

63 ELWT ( C) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Notes: Cc (cooling capacity) - Pi (unit power input) Qwe (evaporator water flow) - Pdwe (evaporator pressure drop) ELWT (evaporator leaving water temperature Δt 5 C). Data are referred to 0,0176 m2 C/kW evaporator fouling factor page 63/116

64 ELWT ( C) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Notes: Cc (cooling capacity) - Pi (unit power input) Qwe (evaporator water flow) - Pdwe (evaporator pressure drop) ELWT (evaporator leaving water temperature Δt 5 C). Data are referred to 0,0176 m2 C/kW evaporator fouling factor page 64/116

65 EWAD~D-SR ELWT ( C) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Notes: Cc (cooling capacity) - Pi (unit power input) Qwe (evaporator water flow) - Pdwe (evaporator pressure drop) ELWT (evaporator leaving water temperature Δt 5 C). Data are referred to 0,0176 m2 C/kW evaporator fouling factor page 65/116

66 ELWT ( C) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Notes: Cc (cooling capacity) - Pi (unit power input) Qwe (evaporator water flow) - Pdwe (evaporator pressure drop) ELWT (evaporator leaving water temperature Δt 5 C). Data are referred to 0,0176 m2 C/kW evaporator fouling factor page 66/116

67 ELWT ( C) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Notes: Cc (cooling capacity) - Pi (unit power input) Qwe (evaporator water flow) - Pdwe (evaporator pressure drop) ELWT (evaporator leaving water temperature Δt 5 C). Data are referred to 0,0176 m2 C/kW evaporator fouling factor page 67/116

68 ELWT ( C) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Notes: Cc (cooling capacity) - Pi (unit power input) Qwe (evaporator water flow) - Pdwe (evaporator pressure drop) ELWT (evaporator leaving water temperature Δt 5 C). Data are referred to 0,0176 m2 C/kW evaporator fouling factor page 68/116

69 ELWT ( C) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Notes: Cc (cooling capacity) - Pi (unit power input) Qwe (evaporator water flow) - Pdwe (evaporator pressure drop) ELWT (evaporator leaving water temperature Δt 5 C). Data are referred to 0,0176 m2 C/kW evaporator fouling factor page 69/116

70 ELWT ( C) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Notes: Cc (cooling capacity) - Pi (unit power input) Qwe (evaporator water flow) - Pdwe (evaporator pressure drop) ELWT (evaporator leaving water temperature Δt 5 C). Data are referred to 0,0176 m2 C/kW evaporator fouling factor page 70/116

71 ELWT ( C) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Notes: Cc (cooling capacity) - Pi (unit power input) Qwe (evaporator water flow) - Pdwe (evaporator pressure drop) ELWT (evaporator leaving water temperature Δt 5 C). Data are referred to 0,0176 m2 C/kW evaporator fouling factor page 71/116

72 EWAD~D-SX ELWT ( C) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Notes: Cc (cooling capacity) - Pi (unit power input) Qwe (evaporator water flow) - Pdwe (evaporator pressure drop) ELWT (evaporator leaving water temperature Δt 5 C). Data are referred to 0,0176 m2 C/kW evaporator fouling factor page 72/116

73 ELWT ( C) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Notes: Cc (cooling capacity) - Pi (unit power input) Qwe (evaporator water flow) - Pdwe (evaporator pressure drop) ELWT (evaporator leaving water temperature Δt 5 C). Data are referred to 0,0176 m2 C/kW evaporator fouling factor page 73/116

74 ELWT ( C) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Notes: Cc (cooling capacity) - Pi (unit power input) Qwe (evaporator water flow) - Pdwe (evaporator pressure drop) ELWT (evaporator leaving water temperature Δt 5 C). Data are referred to 0,0176 m2 C/kW evaporator fouling factor page 74/116

75 ELWT ( C) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Notes: Cc (cooling capacity) - Pi (unit power input) Qwe (evaporator water flow) - Pdwe (evaporator pressure drop) ELWT (evaporator leaving water temperature Δt 5 C). Data are referred to 0,0176 m2 C/kW evaporator fouling factor page 75/116

76 ELWT ( C) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Notes: Cc (cooling capacity) - Pi (unit power input) Qwe (evaporator water flow) - Pdwe (evaporator pressure drop) ELWT (evaporator leaving water temperature Δt 5 C). Data are referred to 0,0176 m2 C/kW evaporator fouling factor page 76/116

77 490 ELWT ( C) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Notes: Cc (cooling capacity) - Pi (unit power input) Qwe (evaporator water flow) - Pdwe (evaporator pressure drop) ELWT (evaporator leaving water temperature Δt 5 C). Data are referred to 0,0176 m2 C/kW evaporator fouling factor page 77/116

78 EWAD~D-XS ELWT ( C) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Notes: Cc (cooling capacity) - Pi (unit power input) Qwe (evaporator water flow) - Pdwe (evaporator pressure drop) ELWT (evaporator leaving water temperature Δt 5 C). Data are referred to 0,0176 m2 C/kW evaporator fouling factor page 78/116

79 ELWT ( C) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Notes: Cc (cooling capacity) - Pi (unit power input) Qwe (evaporator water flow) - Pdwe (evaporator pressure drop) ELWT (evaporator leaving water temperature Δt 5 C). Data are referred to 0,0176 m2 C/kW evaporator fouling factor page 79/116

80 ELWT ( C) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Notes: Cc (cooling capacity) - Pi (unit power input) Qwe (evaporator water flow) - Pdwe (evaporator pressure drop) ELWT (evaporator leaving water temperature Δt 5 C). Data are referred to 0,0176 m2 C/kW evaporator fouling factor page 80/116

81 ELWT ( C) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Notes: Cc (cooling capacity) - Pi (unit power input) Qwe (evaporator water flow) - Pdwe (evaporator pressure drop) ELWT (evaporator leaving water temperature Δt 5 C). Data are referred to 0,0176 m2 C/kW evaporator fouling factor page 81/116

82 ELWT ( C) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Notes: Cc (cooling capacity) - Pi (unit power input) Qwe (evaporator water flow) - Pdwe (evaporator pressure drop) ELWT (evaporator leaving water temperature Δt 5 C). Data are referred to 0,0176 m2 C/kW evaporator fouling factor page 82/116

83 620 ELWT ( C) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Notes: Cc (cooling capacity) - Pi (unit power input) Qwe (evaporator water flow) - Pdwe (evaporator pressure drop) ELWT (evaporator leaving water temperature Δt 5 C). Data are referred to 0,0176 m2 C/kW evaporator fouling factor page 83/116

84 EWAD~D-XR ELWT ( C) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Notes: Cc (cooling capacity) - Pi (unit power input) Qwe (evaporator water flow) - Pdwe (evaporator pressure drop) ELWT (evaporator leaving water temperature Δt 5 C). Data are referred to 0,0176 m2 C/kW evaporator fouling factor page 84/116

85 ELWT ( C) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Notes: Cc (cooling capacity) - Pi (unit power input) Qwe (evaporator water flow) - Pdwe (evaporator pressure drop) ELWT (evaporator leaving water temperature Δt 5 C). Data are referred to 0,0176 m2 C/kW evaporator fouling factor page 85/116

86 ELWT ( C) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Notes: Cc (cooling capacity) - Pi (unit power input) Qwe (evaporator water flow) - Pdwe (evaporator pressure drop) ELWT (evaporator leaving water temperature Δt 5 C). Data are referred to 0,0176 m2 C/kW evaporator fouling factor page 86/116

87 ELWT ( C) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Notes: Cc (cooling capacity) - Pi (unit power input) Qwe (evaporator water flow) - Pdwe (evaporator pressure drop) ELWT (evaporator leaving water temperature Δt 5 C). Data are referred to 0,0176 m2 C/kW evaporator fouling factor page 87/116

88 ELWT ( C) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Notes: Cc (cooling capacity) - Pi (unit power input) Qwe (evaporator water flow) - Pdwe (evaporator pressure drop) ELWT (evaporator leaving water temperature Δt 5 C). Data are referred to 0,0176 m2 C/kW evaporator fouling factor page 88/116

89 600 ELWT ( C) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Notes: Cc (cooling capacity) - Pi (unit power input) Qwe (evaporator water flow) - Pdwe (evaporator pressure drop) ELWT (evaporator leaving water temperature Δt 5 C). Data are referred to 0,0176 m2 C/kW evaporator fouling factor page 89/116

90 EWAD~D-HS ELWT ( C) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Notes: Cc (cooling capacity) - Pi (unit power input) Qwe (evaporator water flow) - Pdwe (evaporator pressure drop) ELWT (evaporator leaving water temperature Δt 5 C). Data are referred to 0,0176 m2 C/kW evaporator fouling factor page 90/116

91 ELWT ( C) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Notes: Cc (cooling capacity) - Pi (unit power input) Qwe (evaporator water flow) - Pdwe (evaporator pressure drop) ELWT (evaporator leaving water temperature Δt 5 C). Data are referred to 0,0176 m2 C/kW evaporator fouling factor page 91/116

92 ELWT ( C) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Notes: Cc (cooling capacity) - Pi (unit power input) Qwe (evaporator water flow) - Pdwe (evaporator pressure drop) ELWT (evaporator leaving water temperature Δt 5 C). Data are referred to 0,0176 m2 C/kW evaporator fouling factor page 92/116

93 ELWT ( C) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Notes: Cc (cooling capacity) - Pi (unit power input) Qwe (evaporator water flow) - Pdwe (evaporator pressure drop) ELWT (evaporator leaving water temperature Δt 5 C). Data are referred to 0,0176 m2 C/kW evaporator fouling factor page 93/116

94 ELWT ( C) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Notes: Cc (cooling capacity) - Pi (unit power input) Qwe (evaporator water flow) - Pdwe (evaporator pressure drop) ELWT (evaporator leaving water temperature Δt 5 C). Data are referred to 0,0176 m2 C/kW evaporator fouling factor page 94/116

95 ELWT ( C) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Notes: Cc (cooling capacity) - Pi (unit power input) Qwe (evaporator water flow) - Pdwe (evaporator pressure drop) ELWT (evaporator leaving water temperature Δt 5 C). Data are referred to 0,0176 m2 C/kW evaporator fouling factor page 95/116

96 ELWT ( C) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Notes: Cc (cooling capacity) - Pi (unit power input) Qwe (evaporator water flow) - Pdwe (evaporator pressure drop) ELWT (evaporator leaving water temperature Δt 5 C). Data are referred to 0,0176 m2 C/kW evaporator fouling factor page 96/116

97 590 ELWT ( C) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Cc (kw) Pi (kw) Qwe (l/s) Pdwe (kpa) Notes: Cc (cooling capacity) - Pi (unit power input) Qwe (evaporator water flow) - Pdwe (evaporator pressure drop) ELWT (evaporator leaving water temperature Δt 5 C). Data are referred to 0,0176 m2 C/kW evaporator fouling factor page 97/116

98 Options Ratings Tot al heat recovery EWC / LWC 40/45 40/50 45/55 Model EWAD~D-SS Cc (kw) Pi (kw) Hc (kw) % Hc EER Hc % % % % % % % % % % % % % % % % % % % % % 3.68 EWC / LWC 40/45 40/50 45/55 Model EWAD~D-SL Model EWAD~D-SR Cc (kw) Pi (kw) Hc (kw) % Hc EER Hc % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % Cc (cooling capacity -Pi (unit power input) - Hc (heating heat recovery capacity) - %Hc (percentage heat recovered) - EER Hc (coefficent of performance during heat recovery = (cooling+ heating capacity) / power input) - EWC (Entering water heat recovery condenser) - LWC (Leaving water heat recovery condenser) Data refers to: - LWE (Leaving water evaporator) = 7 C - Same evaporator flow as for nominal cooling operation - Condenser Inlet Air Temperature = 35 C - 0,0176 m 2 C/kW evaporator fouling factor page 98/116

99 EWC / LWC 40/45 40/50 45/55 Model EWAD~D-SX Cc (kw) Pi (kw) Hc (kw) % Hc EER Hc % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % 3.99 EWC / LWC 40/45 40/50 45/55 Model EWAD~D-XS Model EWAD~D-XR Cc (kw) Pi (kw) Hc (kw) % Hc EER Hc % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % Cc (cooling capacity -Pi (unit power input) - Hc (heating heat recovery capacity) - %Hc (percentage heat recovered) - EER Hc (coefficent of performance during heat recovery = (cooling+ heating capacity) / power input) - EWC (Entering water heat recovery condenser) - LWC (Leaving water heat recovery condenser) Data refers to: - LWE (Leaving water evaporator) = 7 C - Same evaporator flow as for nominal cooling operation - Condenser Inlet Air Temperature = 35 C - 0,0176 m 2 C/kW evaporator fouling factor page 99/116

100 EWC / LWC 40/45 40/50 45/55 Model EWAD~D-XS Cc (kw) Pi (kw) Hc (kw) % Hc EER Hc % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % Cc (cooling capacity -Pi (unit power input) - Hc (heating heat recovery capacity) - %Hc (percentage heat recovered) - EER Hc (coefficent of performance during heat recovery = (cooling+ heating capacity) / power input) - EWC (Entering water heat recovery condenser) - LWC (Leaving water heat recovery condenser) Data refers to: - LWE (Leaving water evaporator) = 7 C - Same evaporator flow as for nominal cooling operation - Condenser Inlet Air Temperature = 35 C - 0,0176 m 2 C/kW evaporator fouling factor page 100/116

101 Partial heat recovery EWC / LWC 50/60 EWC / LWC 50/60 EWC / LWC 50/60 Model EWAD~D-SS Cc (kw) Pi (kw) Hc (kw) % Hc EER Hc % % % % % % % 3.10 Model EWAD~D-SL Model EWAD~D-SR Cc (kw) Pi (kw) Hc (kw) % Hc EER Hc % % % % % % % % % % % % % % 3.01 Model EWAD~D-SX Cc (kw) Pi (kw) Hc (kw) % Hc EER Hc % % % % % % % % % % % 3.18 EWC / LWC Model EWAD~D-XS Model EWAD~D-XR Cc (kw) Pi (kw) Hc (kw) % Hc EER Hc 50/60 EWC / LWC 50/ % % % % % % % % % % % 3.59 Model EWAD~D-XS Cc (kw) Pi (kw) Hc (kw) % Hc EER Hc % % % % % % % % % % % % % % % Cc (cooling capacity -Pi (unit power input) - Hc (heating heat recovery capacity) - %Hc (percentage heat recovered) - EER Hc (coefficent of performance during heat recovery = (cooling+ heating capacity) / power input) - EWC (Entering water heat recovery condenser) - LWC (Leaving water heat recovery condenser) Data refers to: - LWE (Leaving water evaporator) = 7 C - Same evaporator flow as for nominal cooling operation - Condenser Inlet Air Temperature = 35 C - 0,0176 m 2 C/kW evaporator fouling factor page 101/116

102 Pressure drops Total heat recovery EWAD~D-SS Heating Capacity (kw) Water Flow (l/s) Heat Recovery Pressure Drops (kpa) Water flow and pressure drop referred to nominal codition: evaporator water in/out: 12/7 C condenser air inlet 35 C water heat recovery in/out 40/45 C EWAD~D-SL EWAD~D-SR Heating Capacity (kw) Water Flow (l/s) Heat Recovery Pressure Drops (kpa) Water flow and pressure drop referred to nominal codition: evaporator water in/out: 12/7 C condenser air inlet 35 C water heat recovery in/out 40/45 C EWAD~D-SL EWAD~D-SR Heating Capacity (kw) Water Flow (l/s) Heat Recovery Pressure Drops (kpa) Water flow and pressure drop referred to nominal codition: evaporator water in/out: 12/7 C condenser air inlet 35 C water heat recovery in/out 40/45 C EWAD~D-SX Heating Capacity (kw) Water Flow (l/s) Heat Recovery Pressure Drops (kpa) Water flow and pressure drop referred to nominal codition: evaporator water in/out: 12/7 C condenser air inlet 35 C water heat recovery in/out 40/45 C EWAD~D-XS EWAD~D-XR Heating Capacity (kw) Water Flow (l/s) Heat Recovery Pressure Drops (kpa) Water flow and pressure drop referred to nominal codition: evaporator water in/out: 12/7 C condenser air inlet 35 C water heat recovery in/out 40/45 C EWAD~D-HS Heating Capacity (kw) Water Flow (l/s) Heat Recovery Pressure Drops (kpa) Water flow and pressure drop referred to nominal codition: evaporator water in/out: 12/7 C condenser air inlet 35 C water heat recovery in/out 40/45 C EWAD~D-HS Heating Capacity (kw) Water Flow (l/s) Heat Recovery Pressure Drops (kpa) Water flow and pressure drop referred to nominal codition: evaporator water in/out: 12/7 C condenser air inlet 35 C water heat recovery in/out 40/45 C page 102/116

103 Partial heat recovery EWAD~D-SS Heating Capacity (kw) Water Flow (l/s) Heat Recovery Pressure Drops (kpa) Water flow and pressure drop referred to nominal codition: evaporator water in/out: 12/7 C condenser air inlet 35 C water heat recovery in/out 50/60 C EWAD~D-SL EWAD~D-SR Heating Capacity (kw) Water Flow (l/s) Heat Recovery Pressure Drops (kpa) Water flow and pressure drop referred to nominal codition: evaporator water in/out: 12/7 C condenser air inlet 35 C water heat recovery in/out 50/60 C EWAD~D-SL EWAD~D-SR Heating Capacity (kw) Water Flow (l/s) Heat Recovery Pressure Drops (kpa) Water flow and pressure drop referred to nominal codition: evaporator water in/out: 12/7 C condenser air inlet 35 C water heat recovery in/out 50/60 C EWAD~D-SX Heating Capacity (kw) Water Flow (l/s) Heat Recovery Pressure Drops (kpa) Water flow and pressure drop referred to nominal codition: evaporator water in/out: 12/7 C condenser air inlet 35 C water heat recovery in/out 50/60 C EWAD~D-XS EWAD~D-XR Heating Capacity (kw) Water Flow (l/s) Heat Recovery Pressure Drops (kpa) Water flow and pressure drop referred to nominal codition: evaporator water in/out: 12/7 C condenser air inlet 35 C water heat recovery in/out 50/60 C EWAD~D-HS Heating Capacity (kw) Water Flow (l/s) Heat Recovery Pressure Drops (kpa) Water flow and pressure drop referred to nominal codition: evaporator water in/out: 12/7 C condenser air inlet 35 C water heat recovery in/out 50/60 C EWAD~D-HS Heating Capacity (kw) Water Flow (l/s) Heat Recovery Pressure Drops (kpa) Water flow and pressure drop referred to nominal codition: evaporator water in/out: 12/7 C condenser air inlet 35 C water heat recovery in/out 50/60 C page 103/116

104 Pressure drops for different versions or at different working condition, please refer to the following formula: Q (l/s) PD 2 (kpa) = PD 1 (kpa) x Q 1 (l/s) where: PD 2 PD 1 Q 2 Q 1 Pressure drop to be determinate (kpa) Pressure drop at nominal condition (kpa) water flow at new working condition (l/s) water flow at nominal condition (l/s) Example The unit EWAD390D-SS has been selected for working at the following conditions: - Total heat recovery leaving water temperature 40/50 C The heating capacity at these working conditions is: 415 kw The water flow at these working conditions is: l/s The unit EWAD390D-SS at nominal working conditions has the following data: - Total heat recovery leaving water temperature 40/45 C - condenser air inlet: 35 C The heating capacity at these working conditions is: 427 kw The water flow at these working conditions is: l/s The pressure drop at these working conditions is: 37 kpa The pressure drop at the selected working condition will be: PD 2 (kpa) = 37 (kpa) x (l/s) (l/s) 1.80 PD 2 (kpa) = 39 (kpa) page 104/116

105 Water Pump Kit Pump Discharge Head (m) SPK 4 SPK 3 SPK 2 SPK 1 Single Pump (2 poles) Discharge Head SPK Water Flow (l/s) SPK 6 SPK 7 SPK 9 SPK 8 SPK 10 Pump Discharge Head (m) DPK 4 DPK 3 DPK 2 DPK 1 Twin Pump (2 poles) Discharge Head DPK 6 DPK Water Flow (l/s) DPK 9 DPK 7 DPK 8 DPK 10 page 105/116

106 Water pump kit technical information Single Pump Double Pump Pump Motor Power Pump Motor Current Power supply PN Motor Insulation Working Temp. (kw) (A) (V-ph-Hz) Protection (Class) ( C) SPK V-3ph-50hz PN10 IP55 F SPK V-3ph-50hz PN10 IP55 F SPK V-3ph-50hz PN10 IP55 F SPK V-3ph-50hz PN10 IP55 F SPK V-3ph-50hz PN10 IP55 F SPK V-3ph-50hz PN10 IP55 F SPK V-3ph-50hz PN10 IP55 F SPK V-3ph-50hz PN10 IP55 F SPK V-3ph-50hz PN10 IP55 F SPK V-3ph-50hz PN10 IP55 F DPK V-3ph-50hz PN10 IP55 F DPK V-3ph-50hz PN10 IP55 F DPK V-3ph-50hz PN10 IP55 F DPK V-3ph-50hz PN10 IP55 F DPK V-3ph-50hz PN10 IP55 F DPK V-3ph-50hz PN10 IP55 F DPK V-3ph-50hz PN10 IP55 F DPK V-3ph-50hz PN10 IP55 F DPK V-3ph-50hz PN10 IP55 F DPK V-3ph-50hz PN10 IP55 F Note: when using mixture of water and glycol please contact the factory as above specification can change page 106/116

107 Combination matrix Single Pump Version Size SPK 1 SPK 2 SPK 3 SPK 4 SPK 5 SPK 6 SPK 7 SPK 8 SPK 9 SPK 10 EWAD~D-SX EWAD~D-SR EWAD~D-SL EWAD~D-SS EWAD~D-HS EWAD~D-XR EWAD~D-XS 390 X X X X X 440 X X X X X 470 X X X X X 510 X X X X X 530 X X X X 560 X X X X 580 X X X 180 X X X X 200 X X X X 230 X X X X X X X 250 X X X X X X 260 X X X X X X 280 X X X X X X X 300 X X X X X 320 X X X X X 370 X X X X X X 400 X X X X X X 440 X X X X X 480 X X X X X 510 X X X X X 530 X X X X 180 X X X X 190 X X X X 220 X X X X X X X 240 X X X X X X X 250 X X X X X X 270 X X X X X X 280 X X X X X X 310 X X X X X 370 X X X X X X 400 X X X X X X 440 X X X X X 480 X X X X X 510 X X X X X 530 X X X X 210 X X X 230 X X X X X X X X 250 X X X X X X X 270 X X X X X X X 290 X X X X X X 300 X X X X X 310 X X X X X 370 X X X X X X 410 X X X X X X 450 X X X X X X 490 X X X X X X 250 X X X X X X X 280 X X X X X X X 300 X X X X X 330 X X X X X 350 X X X X X X 380 X X X X X X 400 X X X X X X 470 X X X X X 520 X X X X X 580 X X X 620 X 240 X X X X X X X X 270 X X X X X X X 300 X X X X X 320 X X X X X 350 X X X X X 370 X X X X X X 390 X X X X X X 460 X X X X X 510 X X X X X 560 X X X 600 X X X 200 X X X 210 X X X 230 X X X X X X X X 260 X X X X X X X 270 X X X X X X X 290 X X X X X X 310 X X X X X 340 X X X X X 380 X X X X X X 420 X X X X X X 450 X X X X X 480 X X X X X 510 X X X X X 550 X X X X 590 X X X page 107/116

108 Double Pump Version Size DPK 1 DPK 2 DPK 3 DPK 4 DPK 5 DPK 6 DPK 7 DPK 8 DPK 9 DPK 10 EWAD~D-SX EWAD~D-SR EWAD~D-SL EWAD~D-SS EWAD~D-HS EWAD~D-XR EWAD~D-XS 390 X X X X X 440 X X X X X 470 X X X X 510 X X X X 530 X X X 560 X X X 580 X 180 X X X X 200 X X X X 230 X X X X X X 250 X X X X 260 X X X 280 X X X X X 300 X X X X X 320 X X X X 370 X X X X X 400 X X X X X 440 X X X X X 480 X X X X 510 X X X X 530 X X X 180 X X X X 190 X X X X 220 X X X X X X X 240 X X X X X X X 250 X X X X 270 X X X 280 X X X 310 X X X 370 X X X X 400 X X X X 440 X X X X 480 X X X X 510 X X X X 530 X X X 210 X X X 230 X X X X X X X X 250 X X X X X X X 270 X X X X X X X 290 X X X X X X 300 X X X X X 310 X X X X X 370 X X X X X X 410 X X X X X X 450 X X X X X X 490 X X X X X 250 X X X X 280 X X X X X 300 X X X X X 330 X X X X X 350 X X X X X 380 X X X X X 400 X X X X X 470 X X X X 520 X X X X 580 X 620 X 240 X X X X X X X 270 X X X X X 300 X X X X X 320 X X X X X 350 X X X X 370 X X X X X 390 X X X X X 460 X X X X 510 X X X X 560 X 600 X 200 X X X X 210 X X X X 230 X X X X X X X 260 X X X 270 X X X X X 290 X X X X X 310 X X X X 340 X X X X 380 X X X X X 420 X X X X X 450 X X X X X 480 X X X X 510 X X X X 550 X X X 590 X page 108/116

109 Dimensions Legend 1 Condenser Coil 2 Water heat exchanger (evaporator) 3 Evaporator water inlet 4 Evaporator water outlet 5 Victaulic connection 6 Operating and control panel 7 Slot for power and control connection 8 Fan 9 Compressor Model Dimensions (mm) EWAD A B C D E F G 390D-SS D-SS D-SS D-SL D-SL D-SL D-SR D-SR D-SR D-SX D-SX D-SX D-XS D-XS D-XS D-XR D-XR D-XR D-HS D-HS D-HS page 109/116

110 Legend 1 Condenser Coil 2 Water heat exchanger (evaporator) 3 Evaporator water inlet 4 Evaporator water outlet 5 Victaulic connection 6 Operating and control panel 7 Slot for power and control connection 8 Fan 9 Compressor Model Dimensions (mm) EWAD A B C D E F D-SL D-SR D-HS page 110/116

111 Installation notes Warning Installation and maintenance of the unit must to be performed only by qualified personnel who have knowledge with local codes and regulations, and experience with this type of equipment. Must be avoided the unit installation in places that could be considered dangerous for all the maintenance operations. Handling Care should be taken to avoid rough handling or shock due to dropping the unit. Do not push or pull the unit from anything other than the base frame. Never allow the unit to fall during unloading or moving as this may result in serious damage. To lift the unit, rings are provided in the base frame of the unit. Spreader bar and cables should be arranged to prevent damage to the condenser coil or unit cabinet. Location The units are produced for outside installation on roofs, floors or below ground level on condition that the area is free from obstacles for the passage of the condenser air. The unit should be positioned on solid foundations and perfectly level; in the case of installation on roofs or floors, it may be advisable to arrange the use of suitable weight distribution beams. When the units are installed on the ground, a concrete base at least 250 mm wider and longer than the unit s footprint should be laid. Furthermore, this base should withstand the unit weight mentioned in the technical data table. Acoustic protection When noise level must meet special requirements, it is necessary to pay the maximum attention to ensure the perfect insulation of the unit from the support base by applying appropriate vibration-dampening devices on the unit, on the water pipes and on the electrical connections. Storage The environment conditions have to be in the following limits: Minimum ambient temperature: Maximum ambient temperature: Maximum R.H.: -20 C +57 C 95% not condensing Space requirements The units are air-cooled, then it is important to respect the minimum distances which guarantee the best ventilation of the condenser coils. Limitations of space reducing the air flow could cause significant reductions in cooling capacity and an increase in electricity consumption. To determinate unit placement, careful consideration must be given to assure a sufficient air flow across the condenser heat transfer surface. Two conditions must be avoided to achieve the best performance: warm air recirculation and coil starvation. Both these conditions cause an increase of condensing pressures that result in reductions in unit efficiency and capacity. Moreover the unique microprocessor has the ability to calculate the operating environment of the air cooled chiller and the capacity to optimize its performance staying on-line during abnormal conditions. Each side of the unit must be accessible after installation for periodic service. Fig.1 shows you minimum recommended clearance requirements. Vertical condenser air discharge must be unobstructed because the unit would have its capacity and efficiency significantly reduced. If the units are positioned in places surrounded by walls or obstacles of the same height as the units, the units should be at least 2500 mm from obstacles (fig.3). In the event the obstacles are higher than the units, the units should be at least 3000 mm from the obstacle (fig.2). s installed closer than the minimum recommended distance to a wall or other vertical riser may experience a combination of coil starvation and warm air recirculation, thus causing reduction in unit capacity and efficiency reductions. The microprocessor control is proactive in response of design condition. In the case of single or compounded influences restricting airflow to the unit, the microprocessor will act to keep the compressor(s) running (at reduced capacity) rather than allowing a shut-off on high discharge pressure. When two or more units are positioned side by side it is recommended that the condenser coils are at least 3600 mm distance from one another (fig.4); strong wind could be the cause of air warm recirculation. For other installation solutions, consult our technicians. The above recommended information are representative of general installation. A specific evaluation should be done by contractor depending on the case. page 111/116

112 Minimum recommended installation clearances Fig. 1 Minimum clearance requirements for machine maintenance Fig. 2 Fig. 3 Fig. 4 page 112/116

113 Technical specification for Air Cooled Screw Chillers General The air cooled screw chiller will be designed and manufactured in accordance with following European directives: Construction of pressure vessel 97/23/EC (PED) Machinery Directive 2006/42/EC Low Voltage 2006/95/EC Electromagnetic Compatibility 2004/108/EC Electrical & Safety codes EN / EN Manufacturing Quality Standards UNI EN ISO 9001:2004 To avoid any losses, the unit will be tested at full load in the factory (at the nominal working conditions and water temperatures). The chiller will be delivered to the job site completely assembled and charged with refrigerant and oil. The installation of the chiller must comply with the manufacturer s instructions for rigging and handling equipment. The unit will be able to start up and operate (as standard) at full load with: - outside air temperature from... C to... C - evaporator leaving fluid temperature between... C and... C Refrigerant Only HFC 134a can be used. Performance Number of air cooled screw chiller(s) :... unit(s) Cooling capacity for single air cooled screw chiller :... kw Power input for single air cooled screw chiller in cooling mode :... kw Heat exchanger entering water temperature in cooling mode :... C Heat exchanger leaving water temperature in cooling mode :... C Heat exchanger water flow :... l/s Nominal outside working ambient temperature in cooling mode :... C Operating voltage range should be 400V ±10%, 3ph, 50Hz, voltage unbalance maximum 3%, without neutral conductor and shall only have one power connection point. description The chiller includes as standard not less than: two independent refrigerant circuits, semi-hermetic type rotary single screw compressor, electronic expansion device (EEXV), refrigerant plate to plate or shell&tube heat exchanger (depending on the size), air-cooled condenser section, R-134a refrigerant, lubrication system, motor starting components, discharge line shut-off valve, suction line shut-off valve, control system and all components necessary for a safe and stable unit operation. The chiller will be factory assembled on a robust base frame made of galvanized steel, protected by an epoxy paint. Sound level and vibrations Sound pressure level at 1 meter distance in free field, semispheric conditions, shall not exceed db(a). The sound pressure levels must be rated in accordance to ISO 3744 (other types of rating can not be used). Vibration on the base frame should not exceed 2 mm/s. Dimensions dimensions shall not exceed following indications: - length... mm - width... mm - height... mm Chiller components Compressors The compressor is semi-hermetic, single-screw type with gate-rotors made of carbon impregnated engineered composite material or the latest high-strength fibre reinforced star material (depending on the size). The gaterotor supports will be constructed of cast iron. The oil injection shall be used in order to get high EER (Energy Efficiency Ratio) also at high condensing pressure and low sound pressure levels in each load condition. page 113/116

114 The compressor shall be provided with a built in, high efficiency, mesh type oil separator and oil filter. Refrigerant system differential pressure shall provide oil injection on all moving compressor parts to correctly lubricate them. Electrical oil pump lubricating system is not allowed. Compressor cooling must be done by refrigerant liquid injection. An external dedicated heat exchanger and additional piping to carry the oil from compressor to heat exchanger and viceversa is not allowed. The compressor shall be direct electrical driven, without gear transmission between the screw and the electrical motor. The compressor casing shall be provided with ports to realize economized refrigerant cycles. The compressor must be protected by a temperature sensor for high discharge temperature and an electrical motor thermistor for high winding temperature. The compressor shall be equipped with an electric oil heater. The compressor shall be fully field serviceable. Compressor that must be removed and returned to the factory for service shall be unacceptable. Cooling capacity control system Each chiller will have a microprocessor for the control of the compressor slide valve position. The unit capacity control shall be infinitely modulating, from 100% down to 25% for each circuit. The chiller shall be capable of stable operation to a minimum of 12.5% of full load without hot gas bypass. The system shall control the unit based on the leaving evaporator water temperature that shall be controlled by PID (Proportional Integral Derivative) logic. The unit control logic shall manage the compressor slides to exactly match the plant load request in order to keep constant the set point for delivered chilled water temperature. The microprocessor unit control shall detect conditions that approach protective limits and take self-corrective action prior to an alarm occurring. The system shall automatically reduce the chiller capacity when any of the following parameters are outside their normal operating range: o High condenser pressure o Low evaporating refrigerant temperature Evaporator The units shall be equipped (depending on the size) with a plate to plate or shell&tube evaporator: o The plate to plate evaporator is made of stainless steel brazed plates and is covered with a 20mm closed cell insulation material. The exchanger is equipped with a heater for protection against freezing down to 28 C and evaporator water outlet connections of 3. Each evaporator has 1 circuit (one compressor) and the water filter is standard. o The shell&tube evaporator is made with copper tubes rolled into steel tubesheets. The evaporators are single-pass on both the refrigerant and water sides for pure counter-flow heat exchange and low refrigerant pressure drops. The external shell is covered with a 10mm closed cell insulation material and the evaporator water outlet connections are provided with victaulic kit (as standard). Each evaporator has 2 circuits, one for each compressor and the water filter is standard. The evaporator is manufactured in accordance to PED approval. Condenser coil The condenser coils are constructed with internally finned seamless copper tubes and arranged in a staggered row pattern and mechanically expanded into lanced and rippled aluminium fins with full fin collars for higher efficiencies. The space between the fins is given by a collar that will increase the surface area in connection with the tubes, protecting them from ambient corrosion. The condenser coils will have an integral subcooler circuit that provides sufficient subcooling to effectively eliminate the possibility of liquid flashing and increase the unit's efficiency with 5% to 7% without increasing in energy consumption. The condenser coils shall be leak-tested and submitted to a pressure test with dry air. Condenser fans The condenser fans used in conjunction with the condenser coils, shall be propeller type with glass reinforced resin blades for higher efficiencies and lower sound. Each fan shall be protected by a fan guard. The air discharge shall be vertical and each fan must be coupled to the electrical motor, supplied as standard to IP54 and capable to work to ambient temperatures of - 20 C to + 65 C. The condenser fans shall have as a standard a thermally protection by internal thermal motor protection and protected by circuit braker installed inside the electrical panel as a standard. page 114/116

115 Refrigerant circuit The unit shall have two independent refrigerant circuits. Each circuit shall include as standard: electronic expansion device piloted by unit s microprocessor control, compressor discharge shut-off valve, suction shut-off valve, replaceable core filter-drier, sight glass with moisture indicator and insulated suction line. Condensation control The units will be provided with an automatic control for condensing pressure which ensures the working at low external temperatures down to -... C, to maintain condensing pressure. The compressor automatically unloads when abnormal high condensing pressure is detected. This to prevent the shutdown of the refrigerant circuit (shutdown of the unit) due to a high-pressure fault. Low sound unit configurations (on request) The unit compressor shall be connected with unit s metal base frame by rubber antivibration supports to prevent the transmission of vibrations to all metal unit structure, in order to control the unit sound. The chiller shall be provided with an acoustical compressor enclosure. This enclosure shall be realized with a light, corrosion resisting aluminium structure and metal panels. The compressor sound-proof enclosure shall be internally fitted with flexible, multi-layer, high density materials. Hydronic kit options (on request) The hydronic module shall be integrated in the chiller chassis without increasing its dimensions and includes the following elements: centrifugal water pump with three-phase motor equipped with internal over-temperature protection, safety relief valve and filling kit. The water piping shall be protected against corrosion and equipped with drain and purge plugs. The customer connections shall be Victaulic connections. The piping shall be fully insulated to prevent condensation (pump insulation using polyurethane foam). A choice of two pump types shall be available: o in-line single pump low and high lifting o in-line twin pumps low and high lifting Control panel Field power connection, control interlock terminals and unit control system should be centrally located in an electric panel (IP 54). Power and starting controls should be separated from safety and operating controls in different compartments of the same panel. Starting will be Wye-Delta type (Y-Δ). Operating and safety controls should include energy saving control, emergency stop switch, overload protection for compressor motor, high and low pressure cut-out switch (for each refrigerant circuit), anti-freeze thermostat, cut-out switch for each compressor. All of the information regarding the unit will be reported on a display, and with the internal built-in calendar and clock that will switch the unit ON/OFF during day time all year long. The following features and functions shall be included: o leaving water temperature reset by controlling the water temperature Δt, by a remote 4-20mA DC signal or by controlling the external ambient temperature; o soft load function to prevent the system from operating at full load during the chilled fluid pulldown period; o password protection of critical parameters of control; o start-to-start and stop-to-start timers to provide minimum compressor off-time with maximum motor protection; o communication capability with a PC or remote monitoring; o discharge pressure control through intelligent cycling of condenser fans; o lead-lag selection manual or automatically by circuit run hours; o double set point for brine unit version; o scheduling via internal time clock to allow programming of a yearly start-stop schedule accommodating weekends and holidays. Optional High Level Communications Interface The chiller is able to communicate to BMS (Building Management System) based on the most common protocols as: o ModbusRTU o LonWorks, now also based on the international 8040 Standard Chiller Profile and LonMark Technology o BacNet BTP certifief over IP and MS/TP (class 4) (Native) o Ethernet TCP/IP page 115/116

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