HYDROCIAT LW R134a. Water cooled chillers USE RANGE

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1 Screw compressors CIAT direct expansion shell and tubes evaporator equipment (High Power System) Cooling or heating Heat recovery ENVIRONMENTALLY HFC R134a PROTECTION DE FRIENDLY L'ENVIRONNEMENT Cooling capacity : 420 to 1030 kw Heating capacity : 520 to 1270 kw USE HYDROCIAT LW The HYDROCIAT LW water chillers with water cooled condensors and screw compressors are designed for indoor installation and offer an optimal solution for any refrigeration application in the air conditioning or industrial process. The use of HFC R134a refrigerant fluid means that the units respond to the most stringent specifications for environmental protection, high efficiency and low electrical consumption The units conform to regulations EN EN and to directives : - Machine (98 / 37 CEE) modified - CEM (89 / 336 CEE) modified 92/31 CEE - 93/68 CEE - Low voltage (73/23 CEE) modified 92/31 CEE - 93/68 CEE - DESP 97 / 23 CEE LW - LWP group 3 sizes 1800BX () to 2800BX () group 4 sizes 3200BX () to 4200BX () RANGE HYDROCIAT LW-LWP 2 compressors - 2 refrigerant circuits 8 models : LW - LWP -1800BX BX BX BX BX BX BX BX. 3 compressors - 3 refrigerant circuits 8 models : LW - LWP 3200BX BX BX BX BBX BX BX BX. HYDROCIAT LWP The design of the water/water heat pumps range HYDROCIAT LWP is identical to that of HYDROCIAT LW. These machines produce hot water for heating applications. They can also be used in the cooling operation by reversing cycle on the hydraulic circuits. 1

2 DESCRIPTION HYDROCIAT LW - LW P Compressors Accessible hermetic twin screw type Optimized profile of rotors ensuring a high efficiency Electrical motor incorporated with part winding start Integral electronic protection fo motor Control of the phases balance and rotation direction Integrated overpressure valve Discharge temperature control Lubrication under controlled pressure 3-stage integrated oil separator Crankcase heater Thin filter at suction Discharge valve Slide for modulating continued output capacity control Assembly on antivibration mounts Integrated oil separator Installed at the compressor discharge The large amount of oil injected during the compression cycle necessitates the use of an oil separator. Oil, after separation from the refrigerant, is filtered before being injected into the compressor. Note : The refrigerant oil has several important roles to ensure the smooth running of the compressor. It : Lubricates bearings and moving parts and eradicates any direct contact between parts. Ensures a secure tightness between the different mechanical parts, thereby guaranteeing good volumetric output. Cools the compressor by direct oil injection into the gas volume being compressed. If required, the cooling of oil allows gas discharge temperature to be limited. Evaporator High performance copper tubes bundle Steel tubular plates Steel shell Corrosion resistant baffles Thermal insulation with polyurethane foam Water cooled condenser High performance copper tubes bundle Carbon steel shell Carbon steel tubular plates Removable cast iron headers Safety valves on the refrigerant circuits (High Power System) on models LW/LWP... The system allows a significant increase in the cooling capacity, improving the performance coefficients (EER) of your installation, particulary in part load, and therefore ensuring an optimal operation of the unit all year round. Refrigerant accessories Filter dryers with rechargeable cartridges Liquid sight glasses Solenoid valves on liquid refrigerant lines Thermostatic expansion valves Electrical panel IP 21 Electrical supply 400 V - 3 ph Hz + earth (-5% / +4%) Main fused isolator with outside handle Transformer for control circuit Compressor motors contactors Compressor motors protection by fused circuit breakers (depending on sizes of compressors). General earth connection Phase controller (reversal, loss, over and under voltage) Electronic module with microprocessor XTRA CONNECT with the following main functions : - 2 remote switchable set points - chilled water temperature control - Possibility of water temperature variation according to the outside temperature (water law) - Low temperature ice storage control - Compressors discharge temperature control - Compressors anti-short cycle control - Control and optimisation of operating parameters - Counting and balancing of compressors operating time - Automaticity control LCD display panel, 2 lines of 20 characters allowing : - parametering of the unit - direct reading of all information: settings, water inlet/outlet temperatures, outside temperature, HP/LP pressures, unit operating status... - Faults control with memorization of the last 9 faults and operating reading of when those faults occured - Weekly management of the unit - Unit general fault display on terminals - Automaticity control on terminals - RS 485 output for bus connection with centralized Building Management System. 2

3 Safety and regulation devices HP/LP pressure sensors Low and high pressure safety valves Chilled water control sensor (inlet or outlet) External temperature sensor Evaporator antifreeze sensor Compressors discharge sensor Evaporator water flow switch Capacity control Modulating capacity control : - fom 25 to 100 % (Sizes 1800BX () to 2800BX ()). - from 17 to 100 % (Sizes 3200BX () to 4200BX ()). HYDROCIAT LWP The HYDROCIAT LWP water-water heat pump range has the same design as the HYDROCIAT LW. The calories are taken from the natural water network (ground water,...) or from a water loop and are sent to the heating network through the thermodynamic circuit, instead of being discharged by a cooling tower or a drycooler as is the case with the water chiller. These water-water heat pumps can be used for cooling by reversing the cycle on the water circuits (modification of the hydraulic circuits to be made on site). OPTIONS HYDROCIAT LW - LWP LOW NOISE version: acoustically lined housing compressors Antivibration equipment : - antivibration mounts - evaporator flexible sleeves - condenser flexible sleeves Compressor isolating suction valves Condenser water headers Low temperature glycol water Electronic expansion valve Heat recovery with brazed plates desuperheaters (1 for each refrigerant circuit) Progressive soft start Reduced height version Remote control unit Voltage-free contact relay board Management of several units - MULTICONNECT LonWorks gateway Shackles Accessories Identical to those of the HYDROCIAT LW 3

4 STANDARD EQUIPMENT / AVAILABLE OPTIONS Standard Options Standard Options HYDROCIAT 1800BX 1800BX 2150BX 2150BX 2500BX 2500BX 2800BX R134a refrigerant 2 refrigerant circuits Main safety switch Control circuit transformer RS 485 communication interface Electrical panel wires numbering Compressors Part Winding starting Phase controller (reversal, loss, over and under voltage) Low Noise version (Compressor acoustic housing) Compressors isolating suction valves Condenser water headers with hydraulic flexible connections Antivibration mounts Evaporator and Condensor hydraulic flexible connections Remote control box (remote console) Dry-contact relay board Low temperature glycol water 2800BX from 0 C to -8 C Desuperheaters Soft start Reduced height version Electronic expansion valve Management of several units - MULTICONNECT LonWorks gateway Shackles HYDROCIAT 3200BX 3200BX 3400BX 3400BX 3750BX 3750BX 4200BX R134a refrigerant 3 refrigerant circuits Main safety switch Control circuit transformer RS 485 communication interface Electrical panel wires numbering Compressors Part Winding starting Phase controller (reversal, loss, over and under voltage) Low Noise version (Compressor acoustic housing) Compressors isolating suction valves Condenser water headers with hydraulic flexible connections Antivibration mounts Evaporator and Condensor hydraulic flexible connections Remote control box (remote console) Dry-contact relay board Low temperature glycol water 4200BX from 0 C to -8 C Desuperheaters Soft start Reduced height version Electronic expansion valve Management of several units - MULTICONNECT LonWorks gateway Shackles Manilles de manutention Standard supply Option - Not available 4

5 TECHNICAL CHARACTERISTICS HYDROCIAT LW - LWP 1800BX 1800BX 2150BX 2150BX 2500BX 2500BX 2800BX 2800BX Cooling capacity (1) kw LW - LWP versions Absorbed power (2) kw EER/ESEER 4.50/ / / / / / / /5.73 Type Hermetic twin screw Number 2 Rotation speed rpm 2900 circ R134a refrigerant charge kg Compressor circ Capacity control Modulating from 25 to 100% (50 to 100% on each compressor) Type of oil for R134a BITZER BSE 170 Oil charge for compressor liters 2 x x 22 Type Direct expansion shell and tubes Number 1 Water content liters Evaporator Hydraulic connections VICTAULIC type Maximum pressure on water side bar 10 Mini / maxi water flow m 3 /h 50 / 150 Type Shell and tubes Number 2 Water content litres 2 x x 36 Water cooled Hydraulic connections VICTAULIC type condenser Maximum pressure on water bar 10 side Maximum water flow m 3 /h Standard version Lw / Lp (3) db(a) 90 / / / / 64 Low Noise version Lw / Lp db(a) (3) db(a) 86 / / / / 61 HYDROCIAT LW - LWP 3200BX 3200BX 3400BX 3400BX 3750BX 3750BX 4200BX 4200BX Cooling capacity (1) kw LW - LWP versions Absorbed power (2) kw EER/ESEER 4.45/ / / / / / / /5.79 Type Hermetic twin screw Number 3 Rotation speed rpm 2900 circ Compressor R134a refrigerant charge kg circ circ Capacity control Modulating from 17 to 100% (50 to 100% on each compressor) Type of oil for R134a BITZER BSE 170 Oil charge for compressor liters x 15 2 x x 22 Type Direct expansion shell and tubes Number 1 Water content liters Evaporator Hydraulic connections VICTAULIC type Maximum pressure on water side bar 10 Mini / maxi water flow m 3 /h 70 / / 220 Type Shell and tubes Number 3 Water content litres x 28 2 x x 36 Water cooled Hydraulic connections VICTAULIC type condenser Maximum pressure on water bar 10 side Maximum water flow m 3 /h Standard version Lw / Lp (3) db(a) 94 / / / 66 Low Noise version Lw / Lp db(a) (3) db(a) 93 / / / / 64 (1) Cooling capacity for 12 / 7 C evaporator chilled water and 30 / 35 C condenser hot water (2) Compressors absorbed power (3) Lw : Global sound power level - Lp : Global sound pressure level at 10 meters, in free field, following ISO 3744 regulation 5

6 ELECTRICAL CHARACTERISTICS Maximum nominal current HYDROCIAT LW - LWP 1800BX 1800BX 2150BX 2150BX 2500BX 2500BX A COMPRESSORS (1) 324 (2 x 162) 358 ( ) Part winding starting current (3) A Starting current with Soft start option (3) A REMOTE-CONTROLLED AUXILIARY CIRCUIT (2) Maximum nominal current A 4 Transformer power VA (2 x 196) HYDROCIAT LW - LWP 3200BX 3200BX 3400BX 3400BX 3750BX 3750BX 4200BX 4200BX Maximum nominal current A 538 ( x 162) COMPRESSORS (1) 554 (2 x ) 588 (3 x 196) 642 (3 x 214) Part winding starting current (3) A Starting current with Soft start option (3) A REMOTE-CONTROLLED AUXILIARY CIRCUIT (2) Maximum nominal current A 4 Transformer power VA 1000 (1) Current for 400V / 3Ph / 50Hz voltage (2) Current for 230V / 1Ph / 50Hz voltage (3) Starting current of the biggest compressor + maximum current of others compressors in full load Nominal current for cables selection = add the maximum nominal currents indicated in the above tables Electrical panel for LW 1800BX () to 2800BX () 6

7 PERFORMANCES HYDROCIAT LW - LWP R134a LW LWP 1800BX 1800BX 2150BX 2150BX CONDENSER WATER OUTLET TEMPERATURE C Evaporator Pf Pa Pc Pf Pa Pc Pf Pa Pc Pf Pa Pc Pf Pa Pc Pf Pa Pc water outlet C kw kw kw kw kw kw kw kw kw kw kw kw kw kw kw kw kw kw Glycol water Pure water Glycol water Pure water Glycol water Pure water Glycol water Pure water Pf : Cooling capacity valid a ΔT according to operating limits Pa : Compressor absorbed power Pc : Heating capacity valid a ΔT according to operating limits Operation without for condenser water outlet at 60 C Glycol water utilisation zone compulsory Low temperature option necessary EUROVENT Conditions 7

8 PERFORMANCES HYDROCIAT LW - LWP R134a LW LWP 2500BX 2500BX 2800BX 2800BX CONDENSER WATER OUTLET TEMPERATURE C Evaporator Pf Pa Pc Pf Pa Pc Pf Pa Pc Pf Pa Pc Pf Pa Pc Pf Pa Pc water outlet C kw kw kw kw kw kw kw kw kw kw kw kw kw kw kw kw kw kw Glycol water Pure water Glycol water Pure water Glycol water Pure water Glycol water Pure water Pf : Cooling capacity valid a ΔT according to operating limits Pa : Compressor absorbed power Pc : Heating capacity valid a ΔT according to operating limits Operation without for condenser water outlet at 60 C Glycol water utilisation zone compulsory Low temperature option necessary EUROVENT Conditions 8

9 PERFORMANCES HYDROCIAT LW - LWP R134a LW LWP 3200BX 3200BX 3400BX 3400BX CONDENSER WATER OUTLET TEMPERATURE C Evaporator Pf Pa Pc Pf Pa Pc Pf Pa Pc Pf Pa Pc Pf Pa Pc Pf Pa Pc water outlet C kw kw kw kw kw kw kw kw kw kw kw kw kw kw kw kw kw kw Glycol water Pure water Glycol water Glycol water Pure water Glycol water Pure water Pf : Cooling capacity valid a ΔT according to operating limits Pa : Compressor absorbed power Pc : Heating capacity valid a ΔT according to operating limits Operation without for condenser water outlet at 60 C Glycol water utilisation zone compulsory Low temperature option necessary EUROVENT Conditions 9

10 PERFORMANCES HYDROCIAT LW - LWP R134a LW LWP 3750BX 3750BX 4200BX 4200BX CONDENSER WATER OUTLET TEMPERATURE C Evaporator Pf Pa Pc Pf Pa Pc Pf Pa Pc Pf Pa Pc Pf Pa Pc Pf Pa Pc water outlet C kw kw kw kw kw kw kw kw kw kw kw kw kw kw kw kw kw kw Glycol water Pure water Glycol water Pure water Glycol water Pure water Glycol water Pure water Pf : Cooling capacity valid a ΔT according to operating limits Pa : Compressor absorbed power Pc : Heating capacity valid a ΔT according to operating limits Operation without for condenser water outlet at 60 C Glycol water utilisation zone compulsory Low temperature option necessary EUROVENT Conditions 10

11 DESUPERHEATER EXCHANGER LW - LWP The system consists in a hot water supplying by an heat recovery system on the compressors discharge gas, on an auxiliary desuperheater exchanger mounted in the unit. This optional equipment is only available on request, and factory mounted. Diagram of the refrigerant circuit The following refrigeration diagram describes an example of a CIAT unit, with desuperheater (on each refrigerant circuit). The heat recovery is possible only if the machine is running. For the same cooling or heating capacity, the desuperheater system allows a free heating of hot water with a reduction of the total input power of the machine. External sensor EVAPORATOR WATER Standard fitting Circuit 2 and 3 same conception than circuit equipment Only without equipment WATER DESUPERHEATERS OPTION WATER OPTION 1 : 3 ways valve fitting OPTION 2 : Compressor valve OPTION 3 : 3 ways valve fitting CONDENSER WATER Principle and precautions of hydraulic connection To start and to run the machine under good conditions, the water loop must be as short as possible, and the water flow of the desuperheater must start slowly with a water flow equal to 10% of its nominal value, and must be calculated for a hot water inlet temperature of +50 C. Thus, it is recommended to have a hydraulic diagram making it possible to obtain hot water very quickly at the inlet of the desuperheater (3-way valve + controller + temperature sensor on the exchanger water inlet) The controller set point must be adjusted to +50 C minimum. ds m s e Min. 50 C Optional desuperheater a 50 C v3v Domestic hot water circuit Note: particular attention must be given when selecting the expansion tank because the recovery water circuit can reach a Recovery example on desuperheater HYDROCIAT Cooling capacity Compressor absorbed Recovery Water flow Pressure drop LW - LWP Pf (kw) Pa (kw) Pr (kw) qv (m 3 /h) dp (mce) 1800BX BX BX BX BX BX BX BX BX BX BX BX BX BX BX BX Note : heat recovery performances for : machine running in full load, chilled water = +12/+7 C and condenser hot water = 30 C / 35 C C hot water temperature on recovery = +55/+60 C 11

12 PARTIAL HEAT RECOVERY CAPACITY R134a LW LWP 1800 BX 1800 BX 2150 BX 2150 BX Desuperheater water inlet and outlet temperature in C Evaporator water outlet temp. C CONDENSER WATER OUTLET TEMPERATURE C Pf Pa Pde Qde Pf Pa Pde Qde Pf Pa Pde Qde Pf Pa Pde Qde Pf Pa Pde Qde kw kw kw m 3 /h kw kw kw m 3 /h kw kw kw m 3 /h kw kw kw m 3 /h kw kw kw m 3 /h , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , ,3 Pf : Cooling capacity valid a DT according to operating limitst Pa : Compressors + fans absorbed power Pde: Desuperheater heating capacity recovered Qde : Desuperheater water flow 12

13 R134a LW LWP 2500 BX 2500 BX 2800 BX PARTIAL HEAT RECOVERY CAPACITY 2800 BX Desuperheater water inlet and outlet temperature in C Evaporator water outlet temp. C CONDENSER WATER OUTLET TEMPERATURE C Pf Pa Pde Qde Pf Pa Pde Qde Pf Pa Pde Qde Pf Pa Pde Qde Pf Pa Pde Qde kw kw kw m 3 /h kw kw kw m 3 /h kw kw kw m 3 /h kw kw kw m 3 /h kw kw kw m 3 /h , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , ,7 Pf : Cooling capacity valid a DT according to operating limitst Pa : Compressors + fans absorbed power Pde: Desuperheater heating capacity recovered Qde : Desuperheater water flow 13

14 PARTIAL HEAT RECOVERY CAPACITY R134a LW LWP 3200 BX 3200 BX 3400 BX 3400 BX Desuperheater water inlet and outlet temperature in C Evaporator water outlet temp. C CONDENSER WATER OUTLET TEMPERATURE C Pf Pa Pde Qde Pf Pa Pde Qde Pf Pa Pde Qde Pf Pa Pde Qde Pf Pa Pde Qde kw kw kw m 3 /h kw kw kw m 3 /h kw kw kw m 3 /h kw kw kw m 3 /h kw kw kw m 3 /h , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , ,5 Pf : Cooling capacity valid a DT according to operating limitst Pa : Compressors + fans absorbed power Pde: Desuperheater heating capacity recovered Qde : Desuperheater water flow 14

15 R134a LW LWP 3750 BX 3750 BX 4200 BX PARTIAL HEAT RECOVERY CAPACITY 4200 BX Desuperheater water inlet and outlet temperature in C Evaporator water outlet temp. C CONDENSER WATER OUTLET TEMPERATURE C Pf Pa Pde Qde Pf Pa Pde Qde Pf Pa Pde Qde Pf Pa Pde Qde Pf Pa Pde Qde kw kw kw m 3 /h kw kw kw m 3 /h kw kw kw m 3 /h kw kw kw m 3 /h kw kw kw m 3 /h , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , ,1 Pf : Cooling capacity valid a DT according to operating limitst Pa : Compressors + fans absorbed power Pde: Desuperheater heating capacity recovered Qde : Desuperheater water flow 15

16 CORRECTION FACTORS FOR ETHYLENE GLYCOL Evaporator Mass concentration % Cooling capacity OPERATION RANGES Multiplying coefficient Chilled water Chilled water flow pressure drops Glycol concentration necessary Ethylene glycol Propylene glycol Condenser Mass concentration % Cooling capacity Multiplying coefficient Hot water Hot water flow pressure drops Mass concentration % LW - LWP operation range Freezing point C Minimum water outlet C Freezing point C Minimum water outlet C D A - Full load operation with pure water B - Full load operation with glycol compulsory C - Operation without D - Part load operation Condenser water outlet temperature C B C A EVAPORATOR LIMITS Evaporator water outlet temperature C The curve below represents the min. and max. admissible temperature differences on pure water or glycol water as a function of the fluid outlet temperature at the evaporator. Check also minimum and maximum temperature differences according to minimum and maximum flow (see curves on "Hydraulic characteristics" page). ΔT between evaporator water inlet / outlet C Difference of temperature for performances calculation tables Example : For a water outlet : + 5 C (ΔT for performances calculation 5 C) ΔT minimum : 3,1 C Water temp : 8,1 / 5 C ΔT maximum : 7,5 C Water temp : 12,5 / 5 C CONDENSER LIMITS HYDROCIAT LW LWP Water cooled condenser ΔT mini C ΔT maxi C YES 4 8 Evaporator water outlet temperature ( C) IMPORTANT : For the LW - LWP units to operate efficiently, particularly during start-up, it is necessary to fit a device which allows the condenser water inlet temperature to reach 20 C very quickly (fitting of 3-way valves for example). 16

17 WATER PRESSURE DROP HYDROCIAT LW - LWN - LWP Evaporator -> Water pressure drop in mwg BX() BX() BX() 1800BX() 3750BX () 3200BX () BX () BX () > Water flow in m 3 /h HYDROCIAT LW - LWP Condenser -> Water pressure drop in mwg BX() BX() 2500BX() BX() 3200BX () BX () 3750BX () BX () > Water flow in m 3 /h Do not extrapolate the values. Minimum and maximum water flow must be respected. 17

18 Desuperheater water pressure drops -> Water pressure drop in mwg LW 1800BX () BX () LW 3200BX () BX () > Water flow in m 3 /h MINIMUM CHILLED WATER VOLUMES HYDROCIAT LW - LWP A Xtra Connect microprocessor fitted on HYDROCIAT units allows a very flexible adjustment of the operation in relation to the drift of parameters, especially for hydraulic installation with low water volume. The auto adaptive control of the units and modulating capacity control on each compressor means that the use of the anti-short cycle function and the installation of buffer tank is not necessary. Models LW- LWP Minimum volume of installations (liters) 1800BX 1800BX 2150BX 2150BX 2500BX 2500BX 2800BX 2800BX 3200BX 3200BX 3400BX 3400BX 3750BX 3750BX 4200BX 4200BX Minimum chilled water volumes calculation for the following conditions : - Evaporator chilled water temperature : 12 C / 7 C - Condenser hot water temperature : 30 C / 35 C Note : Installations with important thermal variation or some industrial process designed to supply very constant water temperature, should be equipped with a buffer tank. 18

19 SOUND LEVELS LW - LWP Standard version (without acoustically lined housing compressors) Sound pressure levels ref 2 x 10-5 Pa ± 3 db (Lp) SOUND PRESSURE LEVEL SPECTRUM (db) 63 Hz 125 Hz 250 Hz 500 Hz 1000 Hz 2000 Hz 4000 Hz Total pressure level db (A) 1800BX () BX () BX () BX () BX () BX () BX () BX () Sound power levels ref W ± 3 db (Lw) LW - LWP SOUND POWER LEVEL SPECTRUM (db) 63 Hz 125 Hz 250 Hz 500 Hz 1000 Hz 2000 Hz 4000 Hz Total power level db(a) 1800BX () BX () BX () BX () BX () BX () BX () BX () Low noise version (with acoustically lined housing compressors) Sound pressure levels ref 2 x 10-5 Pa ± 3 db (Lp) LW - LWP SOUND PRESSURE LEVEL SPECTRUM (db) 63 Hz 125 Hz 250 Hz 500 Hz 1000 Hz 2000 Hz 4000 Hz Total pressure level db (A) 1800BX () BX () BX () BX () BX () BX () BX () BX () Sound power levels W ± 3 db (Lw) SOUND POWER LEVEL SPECTRUM (db) LW - LWP 63 Hz 125 Hz 250 Hz 500 Hz 1000 Hz 2000 Hz 4000 Hz Total power level db(a) 1800BX () BX () BX () BX () BX () BX () BX () BX () Pressure levels are calculated following ISO 3744 regulation Lp = Lw - 10 log S, in free field and at 10 meters from the unit. We remind you that the sound pressure levels are given as an indication and only the sound power levels are comparable and certified. 19

20 (1) DIMENSIONS HYDROCIAT LW - LWP 2 compressors, 2 refrigerant circuits 4230 with option Option 2 Option without option DN 200 DN Option 3 E F Option without option Option with option Option a : cooling water inlet b : cooling water outlet c : chilled water inlet d : chilled water outlet Option 1 : compressor suction valve Option 2 : acoustically lined housing Option 3 : condensers headers (flexible hydraulic sleeves and flange/victaulic adapter included) Option 4 : hydraulic flexible connections (flange/victaulic adapter included) Option 5 : 8 antivibration mounts 400 x 70 x 25 NOTE : the electrical wiring is on the right of the panel through the bottom Dimensions in mm (1) 1860 for reduced height version. Compressor suction valve mounted as standard and acoustically lined housing not available for this version. A - B c - d Weight in kg LW - LWP D E F Victaulic Victaulic empty in operation 1800BX () PN 16 DN 150 PN 16 DN

21 (1) DIMENSIONS HYDROCIAT LW - LWP 2 compressors, 2 refrigerant circuits 4700 with option 4455 without option DN 200 DN E F 3200 without option with option 190 a : cooling water inlet b : cooling water outlet c : chilled water inlet d : chilled water outlet Option 1 : compressor suction valve Option 2 : acoustically lined housing Option 3 : condensers headers (flexible hydraulic sleeves and flange/victaulic adapter included) Option 4 : hydraulic flexible connections (flange/victaulic adapter included) Option 5 : 8 antivibration mounts 400 x 70 x 25 NOTE : the electrical connection is on the right of the panel through the bottom Dimensions in mm (1) 1970 for reduced height version. Compressor suction valve mounted as standard and acoustically lined housing not available for this version. LW - LWP A - B Victaulic c - d Victaulic D E F Weight in kg empty in operation 2150BX () PN 16 DN 150 PN 16 DN BX () PN 16 DN 150 PN 16 DN BX () PN 16 DN 150 PN 16 DN

22 (1) DIMENSIONS HYDROCIAT LW - LWP 3 compressors, 3 refrigerant circuits 780 E F a : cooling water inlet b : cooling water outlet c : chilled water inlet d : chilled water outlet Option 1 : compressor suction valve Option 2 : acoustically lined housing Option 3 : condensers headers (flexible hydraulic sleeves and flange/victaulic adapter included) Option 4 : hydraulic flexible connections (flange/victaulic adapter included) Option 5 : 12 antivibration mounts 400 x 70 x 25 NOTE : the electrical connection is on the right of the panel through the bottom Dimensions in mm (1) 2050 for reduced height version. Compressor suction valve mounted as standard and acoustically lined housing not available for this version. LW - LWP A - B - C c - d Weight in kg D E F Victaulic Victaulic empty in operation 3200BX () PN 16 DN 150 PN 16 DN BX () PN 16 DN 150 PN 16 DN BX () PN 16 DN 150 PN 16 DN BX () PN 16 DN 150 PN 16 DN

23 RECOMMENDATIONS FOR ASSEMBLY HYDROCIAT LW - LWP Installation HYDROCIAT LW - LWP are designed for indoor installation and must be protected from adverse weather and frost. A free space of 1 meter must be left all around the unit for access to the electrical panel and other components. A free space on one side is also necessary (equal to the length of the unit) in case one of heat exchangers needs to be removed. Sound level problems should be studied in detail. Before installing the unit, study and if necessary treat (with the assistance of a sound technicien) the various possible noise transmissions in relation to the premises and its structure. If necessary the machine should be equipped with anti-vibration mounts and flexible connections (recommended and proposed as an option). Hydraulic connections Water connections must be made in accordance with good engineering practice. Provide the accessories necessary for hydraulic circuits : - Expansion vessel, - Drain cocks at low points, - Isolating valves, - Air vents at high points, etc..., - Check that the water content in the installation is sufficient, - Provide, if required, a buffer tank. Commissioning In accordance with our installation and maintenance brochure. Electrical connections All the indications necessary for the electrical connections are mentioned on the electrical diagram enclosed with the unit (to be respected). These connections will be made in accordance with accepted engineering practice and conform to the regulations in force. Leave the control circuit switched on to allow operation of the crankcase heater. The electrical mains supply must be fitted with fuse or circuit breaker protection (to be supplied by the fitter). Maintenance See our operating and maintenance guide. Subscribe a maintenance contract. 23

24 XTRACONNECT CONTROL ERGONOMIC INTERFACE PANEL - LDC multilingual screen (2 lines of 20 characters) - Pressures and temperatures reading - Pump control - Communication Available free contacts inputs / outputs Inputs : - External ON/OFF contact - Chilled water pump external ON/OFF contact - Setpoint 1/2 selection - General fault - Emergency stop - Compressors load shedding ma remote control Output :- General fault of the unit - General fault per dircuit - Pump control RS 485 OUTPUT IN STANDARD MODBUS-JBUS open Protocol (standard) LONWORKS Protocol (option) FREE CONTACTS RELAY CARD (OPTION) Available outputs : - Water flow fault - Antifreeze fault - Pump fault - Fans fault - Emergency stop fault - Low and high pressure fault - Compressors safety fault - Compressors superheating fault - Compressors lubrication fault - Discharge temperature fault - Compressors running REMOTE CONTROL BOX (OPTION) Operation and design same as display console MULTICONNECT MULTI-UNIT MANAGEMENT (OPTION) Main functions available: - Management of up to 8 units on a single water loop - Management in cooling mode (water chiller) or heating mode (heat pump) - Management of chilled-water or hot-water pumps - Centralised management of a backup unit - Unit load shedding - System time programming - Energy storage mode management - Fault management on each unit - Unit running time balancing - Integrated Modbus BMS link for obtaining information on unit operation and faults Non contractual document. With the thought of material improvement always in mind, CIAT reserves the right,without notice, to proceed with any technical modification. Head office & Factories Avenue Jean Falconnier - B.P Culoz - France Tel.: Fax: info@ciat.fr - CIAT Service Tél. : Fax : Compagnie Industrielle d Applications Thermiques - S.A. with a registered capital of R.C.S. Belley B