Air Cooled Single Screw Chiller/ Heat Pump

Transcription

1 Technical Manual MHS - F Air Cooled Single Screw Chiller/ Heat Pump Models: MCS F MHS F Cooling Capacity: 169kW-1370kW Heating Capacity: 179kW-1439kW Refrigerant: R22/R407C Engineered for flexibility and performance. TM

2 Contents Literature No.: TM-MHS(F)-1401A Supersedes: TM-MHS(F)-1301A Part No.: M Features Features Intelligent Network Controller Single Screw Compressor Nomenclature... 9 Nomenclature (R22, R407C) Accessories Standard accessories (supplied on basic unit) Optional accessories (on request) Safety devices and measures Operation Limits Operation Limits System Water Volume Water flow range Specifications MHS/MCS 050.1FST~MHS/MCS380.2FST[R22 ] MHS/MCS050.1FST~MHS/MCS350.2FST[R407C] MHS/MCS050.1FLN~MHS/MCS350.2FLN[R22] MHS/MCS050.1FLN~MCS350.2FLN[R407C] Correction Capacity Tables Cooling Capacity Tables MHS/MCS050.1FST~MHS/MCS380.2FST[R22] MHS050.1FST~MHS350.2FST[R407C] MHS050.1FLN~MHS350.2FLN[R22] Heating Capacity Table MHS050.1FST2-MHS380.1FST MHS050.1FST4-MHS380.2FST MHS050.1FLN2-MHS380.2FLN MHS050.1FLN4-MHS380.2FLN Pressure Drop Through Evaporator Dimensions MCS050~060 / MHS050~ MCS050~060 / MHS050~ MCS070~080 / MHS070~ MCS100~185 / MHS100~

3 MCS200~380 / MHS200~ MCS100~185 / MHS100~ MCS200~380 / MHS200~ Foundation MCS050~060 / MHS050~ MCS070~080 / MHS070~ MCS100 / MHS MCS120 / MHS MCS135 / MHS MCS150~170 / MHS150~ MCS185 / MHS MCS200 / MHS MCS220~235 / MHS220~ MCS260 / MHS MCS285~310/MHS285~ MCS330~380/MHS330~ Sound Level ST Overall Sound Level and Octave Band Level LN Overall Sound Level and Octave Band Level Electric Characteristics Wiring Diagram MCS050/060/070/080/100/120/135/150/170/185.1FST2(4) MCS200/220/235/260/285/310/330/350/380.2FST2(4) MHS050/060/070/080/100/120/135/150/170/185.1FST2(4) MHS200/220/235/260/285/310/330/350/380.2FST2(4) Electrical Data System Diagram Cooling System Heating pump system Installation Location of Water Circulating Pump Moving and Lifting Please perform the following checks before lifting Lifting method Refer to the following items if the units are installed where there s plenty of snow: Don t install the unit under the eaves... 88

4 Correct way to lift Don t install unit at places where snow will be accumulated When two or more units are positioned side by side, it s recommended that follow the below figure to do the installation: Hydraulic System Installation Guide Specifications Note: Installation and maintenance are to be performed only by qualified personnel who are familiar with local codes and regulations, and experienced with this type of equipment. Caution: Sharp edges and coil surfaces are a potential injury hazard. Avoid contact with them. Warning: Moving machinery and electrical power hazard. May cause severe personal injury or death. Disconnect and lock off power before servicing equipment. McQuay is a registered trademark of McQuay International. All rights reserved throughout the world McQuay International Bulletin illustrations cover the general appearance of McQuay International products at the time of publication and we reserve the right to make changes in design and construction at any time without notice.

5 1. Features 1.1 Features The air cooled chiller is a central air conditioning unit, using air as cooling heat source and water as cooling supply medium, which can meet the air conditioning requirement of buildings around the year. The unit can be mounted outside, therefore, no need for equipment room, cooling tower and related water piping system. The entire chiller is complete with simple structure and easy application. Our chiller can be applied in different application, such as department stores, hospitals, restaurants, factories, office building and so on. High resistance against corrosion The cabinet is coated to provide a high resistance. The unit can be applied under different environment conditions. The rejected heat from exchanger doesn t bring any pollution and meets the ecology requirement. Low noise and low vibration As the compact structure, the unit basement bears the loads of compressor, condenser, evaporator, oil separator and the weight of all related refrigerant piping. As our standard features, units are equipped with spring absorber. No vibration is expected from our unique type of F4 single screw compressor. The condenser fan is compete with high efficiency propeller fan, direct drive with low noise. The compressor sound insulation enclosure is provided as standard to decrease the compressor s operation noise effectively. Stepless modulation high efficiency and saving energy McQuay s unique newest single screw compressor brings high EER. Multiple circuits design, each unit is configured with one or two compressors and each compressor is configured with an independent refrigerant system, which can meet the load requirements. The cooling capacity can be steles ranging from 12.5% to 100% by micro-processor control. Easy to install and simple to maintain Once power supplies, water piping and water pump provided, no further equipment are needed. The chiller is fully equipped with the necessary electrical components. Our controller monitor the unit operation permanently. In case abnormity happens, the system can perform audio-video alarm and display the fault s cause to ease the maintenance. Exact control and reliable operation With most advanced electric expansion valve, the unit can control the refrigerant flow as various conditions. Chilled water leaving temperature is controlled to ±0.2. In addition, various sensors can transmit the signals and data to the controller, so the unit components are timely checked in order to keep reliable unit operation. Multiple protections ensure the safety operation of the unit. Three-level password protection prevents non-professional personnel from errors and ensures a safety operation. The compressor start one by one, so the electric current is low to reduce the impact to electric network. 5

6 1.2 Intelligent Network Controller The controller integrates the experience and technology, applying McQuay air cooled heat pump since last 30 years. It is equipped with forecast logical programming software to perform the best combination of compressor and fan at higher EER. The controller can check the parameters and settings and then act accordingly to improve the energy efficiency and maximum reliability. Main functions Multi protection,ensure unit high efficient and stable running. Unit cooling load auto adjusted based on evaporator outlet water temperature. Outlet water temperature controlled by PID, precision ±0.2 C. Compressor On/Off controlled according to average wear. Both Chinese and English are available. Unit operation status/temperature/pressure data etc dispaly. Fault alarm and fault history display. Three-level password protection. Auto re-start after power failure (option). Timing switch on/off function (option). Building management system control (option), Modbus, LonWorks, BACnet are available. Main components (Inner controller) 1. Main controller MicroTech Control type: PLC programming Software class: Class A Effective memory: Flash is 2+2MB, and static is 512KB Working condition: Temperature is between -25 C to 70 C, and relative humidity is 90% 2. PGD (Display) Language: Chinese or English Interface display: Large LCD, 4-line English or 2-line Chinese Working condition: Temperature is between -20 C to 60 C, and relative humidity is 92% 3. IO Expansion board No programming, Set the special address is available. 4. EVD200 No programming, Set the special address is available. Building Management system control (optional) Modbus/LonWorks/BACnet protocol interfaces are available to meet centralized and building auto control. 6

7 1.3 Single Screw Compressor Air Cooled Single Screw Chiller With leading technology, McQuay s semi-hermetic single screw compressor has such features as highefficiency, saving energy, stability, quietness, few operation components and long durability. Few operation components The single screw compressor is equipped with only five moving components: a screw, two gate rotors and two loading slide valve. The screw rotor outside is special treated, and the gate rotor is equipped with eleven-tooth high strength compound material. Liquid durability and high reliability With an equalizing compression, the single screw reduces the bearing load extending the bearing life span. The gate rotor, which is made of high flexibility synthetic material, can keep exact and minimum clearance to ensure no friction can happen, which can improve unit s efficiency. The oil ejection and liquid ejection design to the compressor avoid the overheat gas decrease to a minimum, eliminating to decompose the oil and refrigerant, keeping the good properties of the oil and refrigerant. Easy to maintain The gate rotor is accessible through a removing cover plate, making an easy maintenance. Bearing durability The bearing durability of the single screw compressor is up to 5 times or more, compared to twin-screw compressor. Low noise and low vibration The single screw compressor performs a complete balance load in operation, so its vibration is near to zero and its noise level reaches the minimum of the industry standard. It does not contact metal to metal in compression, which eliminates high frequency noise. Special design discharge chamber eliminates discharge noise. Rate rotor and rotors The single screw compressor, with excellent unique design and special gate-rotor material, and no need for metal hermetic requirement between the gate-rotor and rotors, reaches zero-interval. The liquid refrigerant brings more effects as hermetic, lubricant and cooling material when the compressor rotors operate. What s more, its interval of the teeth is very little and the resistance is very low, which can improve the unit s efficiency. High-efficiency oil separator The system is equipped with a high efficiency oil separator up to 99.7% efficiency. This improved the reliability and one more improvement to compression operation. 7

8 Compression principles Suction Gas flows through the suction port into open ends of available grooves. As the screw rotates, gate-rotor teeth enter the seal grooves in sequence, refrigerant gas in chambers defined by three sides of the grooves, the compressor casing and the gate-rotor tooth surface. Compression Volume in each tooth chamber decreases as the screw rotates. Gas is continuously compressed until the groove leading edge passes the discharge port. Discharge Release of gas into the discharge chamber ends the compression cycle. Gas continues to be discharged until the gate-rotor reduces groove volume to zero. With two gate-rotors equalized on opposite sides of the screw, this process occurs twice with each screw revolution, doubling the compressor capacity of the unit. Axial force balance With opposing and equal suction pressure at both ends of the screw member, the huge thrust loads of twinscrew compressor design are eliminated. Radial force balance Gate rotors on both sides of the screw member compressing simultaneously completely balanced radial loading on the rotating screw, nearly eliminates bearing wear. This is a sharp contrast with twin-screw designs whose bearing size is limited and higher loads directly impact bearing life. Twin-screw is with unbalance loading Without balance compression, the twinscrew increases axial loads and radial loads, and it increases abrasion, which affects the bearing life. Axial force balance Radial force balance Balanced stress with the single screw Unbalanced stress with the dual screws 8

9 2. Nomenclature Nomenclature (R22, R407C) MCS F ST 4 - F DA E Export Product Specifications Power Supply Refrigerant : 2---R R407C Unit : ST: standard LN: low noise Compressor Series Compressor Qty. Cooling Capacity: 235 USRT MCS: McQuay Single Screw Chiller MHS: McQuay Single Screw Heat Pump 9

10 3. Accessories 3.1 Standard accessories (supplied on basic unit) Star Delta Compressors starter For low inrush current and reduced starting torque. Compressor thermal overload relays Safety devices against compressor motor overloading in addition to the normal protection related to the electrical windings. Fan thermal overload relays Safety devices against fan motor overloading in addition to the normal protection related to the electrical windings. Phase protector The phase monitor with under/over voltage protection controls the phases sequence is correct and controls phase loss and ensure power supply voltage is corrrect. Evaporator electric heater Electric heater controlled by a thermostat to protect the evaporator from freezing. Victaulic evaporator water connection Hydraulic joint with gasket for an easy and quick water connection. General fault protection Contactor for alarm warning. Discharge line shut off valves Installed on the discharge port of the compressor. Suction line shut off valve Suction shut-off valve installed on the suction port of the compressor to facilitate maintenance operation (Only for MCS050/MCS060/MCS080). Flow switch Supplied separately to be wired and installed on the evaporator water piping (by the customer). Spring type vibration mounts Supplied separately, these have to be positioned under the base of the unit during installation. Ideal for dampening vibrations on roofs installation and metallic structures. 3.2 Optional accessories (on request) Glycol version Set-point can go down to -8 C. Speed control Continuous fan speed modulation on the first fan of each circuit. It allows the unit working with air temperature down to -15 C. Condenser coil guards Metal protection guards fixed on all the external surface of the condenser coils. Cu-Cu condenser coils To give better protection against corrosion by aggressive environments. Blue fin / Gold Fin Fins are protected by a special acrylic paint with a high resistance to corrosion. High pressure guages Low pressure guages Soft starter Electronic starting device to reduce inrush current and to start compressors gradually, with very low mechanical stress. BMS (Building Management System) protocol Modbus, LonWorks, BACnet 50/100Pa high static pressure fan Note: These options should be factory mounted. Field modifications are not available. 3.3 Safety devices and measures High pressure (pressure switch) Low pressure (pressure sensor) Compressor thermal Condensation fan thermal High compressor discharge temperature sensor Phase monitor Star/Delta transition failed Low-pressure ratio High oil pressure drop Low oil pressure Freeze protection Load stepless adjust Trouble record 10

11 4. Operation Limits 4.1 Operation Limits OPERATION LIMIT(COOL) OPERATION LIMIT(HEAT) OUTDOOR TEMP ( D.B.) Added Glycol Added fan speed controller OUTDOOR TEMP ( D.B.) Running range LEAVING CHILLED WATER TEMP( ) LEAVING HEATED WATER TEMP( ) NOTE: 1 At standard water flow rate; 2 Using ethylene glycol,lwt can reach to -8 ; 3 The range of relative humidity is below 90%. Unload area Recommended area 4.2 System Water Volume It is important to have adequate water volume in the system to provide an opportunity for the chiller to sense a load change, adjust to the change and stabilize. As the expected load change becomes more rapid, a greater water volume is needed. The system water volume is the total amount of water in the evaporator, air handling products and associated piping. If the water volume is too low, operational problems can occur including rapid compressor cycling, rapid loading and unloading of compressors, erratic refrigerant flow in the chiller, improper motor cooling, shortened equipment life and other undesirable occurrences. For normal comfort cooling applications where the cooling load changes relatively slowly, we recommend a minimum system volume. Calculation of the water volume (m 3 ) is as below: L = P where: L = minimum water volume (m 3 ) P = nominal cooling capacity (kw) 4.3 Water flow range Model MHS/MCS Water Flow Rate Range m 3 /h 25~40 25~48 32~56 34~66 43~85 51~99 55~107 63~124 75~147 78~153 Model Water Flow Rate Range m 3 /h 87~169 95~ ~ ~ ~ ~ ~ ~ ~321 11

12 5. Specifications 5.1 MHS/MCS 050.1FST~MHS/MCS380.2FST[R22 ] MHS/MCS kw *1 Normal Cooling Capacity USRT kcal/h 146, , , , ,600 Btu/h 580, , , ,900 1,229,000 kw *2 Normal Heating Capacity 10 4 kcal/h 153, , , , , Btu/h 610, , ,000 1,003,000 1,290,000 Capacity Steps 25 ~ 100% Power Supply V/3N/50Hz Semi-hermetic Single-screw Compressor No. Model Motor Power Input Cooling kw Motor Power Input Heating kw Refrigerant Oil Model LPT68 Charge L High-efficiency Shell and Tube Evaporator Flow Rate L/min Pressure Drop kpa Cross Fin and Tube Condenser Rows Stages FPI 14 Face Area m Propeller (Direct Drive) Qty Fan m 3 /min. 1,467 1,467 2,200 2,200 2,933 Air Flow Rate cfm 51,773 51,773 77,660 77, ,547 Motor Input kw R22 Refrigerant No. of Circuits Control Electronic Expansion Valve Water Piping Connection inch 5 Compressor Acoustic Insulation Material Polyurethane Foaming Unit Power Input kw L mm Unit W mm 2260 Dimensions H mm 2290 MCS Shipping Weight kg Weight MCS Operation Weight kg MHS Shipping Weight kg MHS Operation Weight kg Standard Accessories Unit Operation Instructions, Conformity Certificate, Warranty Application Form, Spring Damper, Water Flow Switch. Notes: *1. Cooling capacity is based on the following conditions: Entering chilled water temp. 12 C, Leaving chilled water temp. 7 C, ambient temp. 35 C DB *2. Heating capacity is based on the following conditions: Entering chilled water temp. 40 C, Leaving chilled water temp. 45 C, ambient temp. 7 C DB Conversion Formulae kcal/h=kw 860 Btu/h=kW 3414 cfm=m³/min

13 MHS/MCS kw *1 Normal Cooling Capacity USRT kcal/h 362, , , , ,400 Btu/h 1,440,700 1,553,400 1,792,400 2,133,800 2,232,800 kw *2 Normal Heating Capacity 10 4 kcal/h 380, , , , , Btu/h 1,512,000 1,631,000 1,881,000 2,239,000 2,345,000 Capacity Steps 25 ~ 100% Power Supply V/3N/50Hz Semi-hermetic Single-screw Compressor No. Model Motor Power Input Cooling kw Motor Power Input Heating kw Refrigerant Model LPT68 Oil Charge L High-efficiency Shell and Tube Evaporator Flow Rate L/min Pressure Drop kpa Cross Fin and Tube Condenser Rows Stages FPI 14 Face Area m Propeller (Direct Drive) No Fan m 3 /min. 2,933 2,933 3,667 3,667 4,400 Air Flow Rate cfm 103, , , , ,320 Motor Input kw R22 Refrigerant No. of Circuits Control Electronic Expansion Valve Water Piping Connection inch 8 Compressor Acoustic Insulation Material Polyurethane Foaming Unit Power Input kw L mm Unit W mm 2260 Dimensions H mm MCS Shipping Weight kg Weight MCS Operation Weight kg MHS Shipping Weight kg MHS Operation Weight kg Standard Accessories Unit Operation Instructions, Conformity Certificate, Warranty Application Form, Spring Damper, Water Flow Switch. Notes: *1. Cooling capacity is based on the following conditions: Entering chilled water temp. 12 C, Leaving chilled water temp. 7 C, ambient temp. 35 C DB *2. Heating capacity is based on the following conditions: Entering chilled water temp. 40 C, Leaving chilled water temp. 45 C, ambient temp. 7 C DB Conversion Formulae kcal/h=kw 860 Btu/h=kW 3414 cfm=m³/min

14 MHS/MCS kw *1 Normal Cooling Capacity USRT kcal/h 619, , , , ,000 Btu/h 2,458,100 2,669,800 2,867,800 3,243,300 3,414,000 kw *2 Normal Heating Capacity 10 4 kcal/h 650, , , , , Btu/h 2,580,000 2,802,000 3,010,000 3,406,000 3,584,000 Capacity Steps 12.5 ~ 100% Power Supply V/3N/50Hz Semi-hermetic Single-screw No. Model Compressor Motor Power Input Cooling kw Motor Power Input Heating kw Refrigerant Model LPT68 Oil Charge L High-efficiency Shell and Tube Evaporator Flow Rate L/min Pressure Drop kpa Cross Fin and Tube Condenser Rows Stages FPI 14 Face Area m Propeller (Direct Drive) Qty Fan m 3 /min. 5,133 5,500 5,867 5,867 6,233 Air Flow Rate cfm 181, , , , ,037 Motor Input kw R22 Refrigerant No. of Circuits Control Electronic Expansion Valve Water Piping Connection inch 8 Compressor Acoustic Insulation Material Polyurethane Foaming Unit Power Input kw Unit Dimensions Weight Standard Accessories L mm W mm 2260 H mm 2330 MCS Shipping Weight kg MCS Operation Weight kg MHS Shipping Weight kg MHS Operation Weight kg Unit Operation Instructions, Conformity Certificate, Warranty Application Form, Spring Damper, Water Flow Switch. Notes: *1. Cooling capacity is based on the following conditions: Entering chilled water temp. 12 C, Leaving chilled water temp. 7 C, ambient temp. 35 C DB *2. Heating capacity is based on the following conditions: Entering chilled water temp. 40 C, Leaving chilled water temp. 45 C, ambient temp. 7 C DB Conversion Formulae kcal/h=kw 860 Btu/h=kW 3414 cfm=m³/min

15 MHS/MCS kw *1 Normal Cooling Capacity USRT kcal/h 920,200 1,000,200 1,118,000 1,178,200 Btu/h 3,653,000 3,970,500 4,438,200 4,677,200 kw *2 Normal Heating Capacity 10 4 kcal/h 966,000 1,049,816 1,174,000 1,237, Btu/h 3,836,178 4,167,000 4,659,000 4,911,000 Capacity Steps 12.5 ~ 100% Power Supply V/3N/50Hz Semi-hermetic Single-screw Compressor No. Model Motor Power Input Cooling kw Motor Power Input Heating kw Refrigerant Oil Model LPT68 Charge L High-efficiency Shell and Tube Evaporator Flow Rate L/min Pressure Drop kpa Cross Fin and Tube Condenser Rows Stages FPI 14 Face Area m Propeller (Direct Drive) Qty Fan m 3 /min. 6,600 6,967 7,333 7,333 Air Flow Rate cfm 232, , , ,867 Motor Input kw R22 Refrigerant No. of Circuits Control Electronic Expansion Valve Water Piping Connection inch 8 Compressor Acoustic Insulation Material Polyurethane Foaming Unit Power Input kw Unit Dimensions Weight Standard Accessories L mm W mm 2260 H mm 2330 MCS Shipping Weight kg MCS Operation Weight kg MHS Shipping Weight kg MHS Operation Weight kg Unit Operation Instructions, Conformity Certificate, Warranty Application Form, Spring Damper, Water Flow Switch. Notes: *1. Cooling capacity is based on the following conditions: Entering chilled water temp. 12 C, Leaving chilled water temp. 7 C, ambient temp. 35 C DB *2. Heating capacity is based on the following conditions: Entering chilled water temp. 40 C, Leaving chilled water temp. 45 C, ambient temp. 7 C DB Conversion Formulae kcal/h=kw 860 Btu/h=kW 3414 cfm=m³/min

16 5.2 MHS/MCS050.1FST~MHS/MCS350.2FST[R407C] MHS/MCS kw *1 Normal Cooling Capacity USRT kcal/h 141, , , , ,800 Btu/h 560, , , ,500 1,186,000 kw *2 Normal Heating Capacity 10 4 kcal/h 153, , , , , Btu/h 611, , ,000 1,003,413 1,290,000 Capacity Steps 25 ~ 100% Power Supply V/3N/50Hz Semi-hermetic Single-screw Compressor No. Model Motor Power Input Cooling kw Motor Power Input Heating kw Refrigerant Model RL68H Oil Charge L High-efficiency Shell and Tube Evaporator Flow Rate L/min Pressure Drop kpa Cross Fin and Tube Condenser Rows Stages FPI 14 Face Area m Propeller (Direct Drive) Qty Fan m 3 /min. 1,467 1,467 2,200 2,200 2,933 Air Flow Rate cfm 51,773 51,773 77,660 77, ,547 Motor Input kw R407C Refrigerant No. of Circuits Control Electronic Expansion Valve Water Piping Connection inch 5 Compressor Acoustic Insulation Material Polyurethane Foaming Unit Power Input kw L mm Unit W mm 2260 Dimensions H mm 2290 MCS Shipping Weight kg Weight MCS Operation Weight kg MHS Shipping Weight kg MHS Operation Weight kg Standard Accessories Unit Operation Instructions, Conformity Certificate, Warranty Application Form, Spring Damper, Water Flow Switch. Notes: *1. Cooling capacity is based on the following conditions: Entering chilled water temp. 12 C, Leaving chilled water temp. 7 C, ambient temp. 35 C DB *2. Heating capacity is based on the following conditions: Entering chilled water temp. 40 C, Leaving chilled water temp. 45 C, ambient temp. 7 C DB Conversion Formulae kcal/h=kw 860 Btu/h=kW 3414 cfm=m³/min

17 MHS/MCS kw *1 Normal Cooling Capacity USRT kcal/h 350, , , , ,800 Btu/h 1,390,300 1,499,000 1,729,600 2,059,100 2,154,600 kw *2 Normal Heating Capacity 10 4 kcal/h 381, , , , , Btu/h 1,512,000 1,631,400 1,880,600 2,239,000 2,344,800 Capacity Steps 25 ~ 100% Power Supply V/3N/50Hz Semi-hermetic Single-screw Compressor No. Model Motor Power Input Cooling kw Motor Power Input Heating kw Refrigerant Oil Model RL68H Charge L High-efficiency Shell and Tube Evaporator Flow Rate L/min Pressure Drop kpa Cross Fin and Tube Condenser Rows Stages FPI 14 Face Area m Propeller (Direct Drive) Qty Fan m 3 /min. 2,933 2,933 3,667 3,667 4,400 Air Flow Rate cfm 103, , , , ,320 Motor Input kw R407C Refrigerant No. of Circuits Control Electronic Expansion Valve Water Piping Connection inch 8 Compressor Acoustic Insulation Material Polyurethane Foaming Unit Power Input kw Unit Dimensions Weight Standard Accessories L mm W mm 2260 H mm MCS Shipping Weight kg MCS Operation Weight kg MHS Shipping Weight kg MHS Operation Weight kg Unit Operation Instructions, Conformity Certificate, Warranty Application Form, Spring Damper, Water Flow Switch. Notes: *1. Cooling capacity is based on the following conditions: Entering chilled water temp. 12 C, Leaving chilled water temp. 7 C, ambient temp. 35 C DB *2. Heating capacity is based on the following conditions: Entering chilled water temp. 40 C, Leaving chilled water temp. 45 C, ambient temp. 7 C DB Conversion Formulae kcal/h=kw 860 Btu/h=kW 3414 cfm=m³/min

18 MHS/MCS kw *1 Normal Cooling Capacity USRT kcal/h 597, , , , ,900 Btu/h 2,372,000 2,576,300 2,767,400 3,129,800 3,294,500 kw *2 Normal Heating Capacity 10 4 kcal/h 650, , , , , Btu/h 2,580,000 2,802,000 3,010,240 3,406,000 3,584,000 Capacity Steps 12.5 ~ 100% Power Supply V/3N/50Hz Semi-hermetic Single-screw No. Model Compressor Motor Power Input Cooling kw Motor Power Input Heating kw Refrigerant Model RL68H Oil Charge L High-efficiency Shell and Tube Evaporator Flow Rate L/min Pressure Drop kpa Cross Fin and Tube Condenser Rows Stages FPI 14 Face Area m Propeller (Direct Drive) Qty Fan m 3 /min. 5,133 5,500 5,867 5,867 6,233 Air Flow Rate cfm 181, , , , ,037 Motor Input kw R407C Refrigerant No. of Circuits Control Electronic Expansion Valve Water Piping Connection inch 8 Compressor Acoustic Insulation Material Polyurethane Foaming Unit Power Input kw Unit Dimensions Weight Standard Accessories L mm W mm 2260 H mm 2330 MCS Shipping Weight kg MCS Operation Weight kg MHS Shipping Weight kg MHS Operation Weight kg Unit Operation Instructions, Conformity Certificate, Warranty Application Form, Spring Damper, Water Flow Switch. Notes: *1. Cooling capacity is based on the following conditions: Entering chilled water temp. 12 C, Leaving chilled water temp. 7 C, ambient temp. 35 C DB *2. Heating capacity is based on the following conditions: Entering chilled water temp. 40 C, Leaving chilled water temp. 45 C, ambient temp. 7 C DB Conversion Formulae kcal/h=kw 860 Btu/h=kW 3414 cfm=m³/min

19 MHS/MCS kw *1 Normal Cooling Capacity USRT kcal/h 888, ,200 1,078,900 Btu/h 3,525,100 3,831,500 4,282,900 kw *2 Normal Heating Capacity 10 4 kcal/h 966,400 1,049,900 1,173, Btu/h 3,836,000 4,167,000 4,659,000 Capacity Steps 12.5 ~ 100% Power Supply V/3N/50Hz Semi-hermetic Single-screw Compressor No. Model Motor Power Input Cooling kw Motor Power Input Heating kw Refrigerant Model RL68H Oil Charge L High-efficiency Shell and Tube Evaporator Flow Rate L/min Pressure Drop kpa Cross Fin and Tube Condenser Rows Stages FPI 14 Face Area m Propeller (Direct Drive) Qty Fan m 3 /min. 6,600 6,967 7,333 Air Flow Rate cfm 232, , ,867 Motor Input kw R407C Refrigerant No. of Circuits Control Electronic Expansion Valve Water Piping Connection inch 8 Compressor Acoustic Insulation Material Polyurethane Foaming Unit Power Input kw L mm Unit W mm 2260 Dimensions H mm 2330 MCS Shipping Weight kg Weight MCS Operation Weight kg MHS Shipping Weight kg MHS Operation Weight kg Standard Accessories Unit Operation Instructions, Conformity Certificate, Warranty Application Form, Spring Damper, Water Flow Switch. Notes: *1. Cooling capacity is based on the following conditions: Entering chilled water temp. 12 C, Leaving chilled water temp. 7 C, ambient temp. 35 C DB *2. Heating capacity is based on the following conditions: Entering chilled water temp. 40 C, Leaving chilled water temp. 45 C, ambient temp. 7 C DB Conversion Formulae kcal/h=kw 860 Btu/h=kW 3414 cfm=m³/min

20 5.3 MHS/MCS050.1FLN~MHS/MCS350.2FLN[R22] MHS/MCS kw *1 Normal Cooling Capacity USRT kcal/h 140, , , , ,000 Btu/h 570, , , ,000 1,200,000 kw *2 Normal Heating Capacity 10 4 kcal/h Btu/h Capacity Steps 25 ~ 100% Power Supply V/3N/50Hz Semi-hermetic Single-screw Compressor No. Model Motor Power Input Cooling kw Motor Power Input Heating kw Refrigerant Model LPT68 Oil Charge L High-efficiency Shell and Tube Evaporator Flow Rate L/min Pressure Drop kpa Cross Fin and Tube Condenser Rows Stages FPI 14 Face Area m Propeller (Direct Drive) Qty Fan m 3 /min. 1,200 1,200 1,800 1,800 2,400 Air Flow Rate cfm 42,360 42,360 63,540 63,540 84,720 Motor Input kw R22 Refrigerant No. of Circuits Control Electronic Expansion Valve Water Piping Connection inch 5 Compressor Acoustic Insulation Material Polyurethane Foaming Unit Power Input kw Unit Dimensions Weight Standard Accessories L mm W mm 2260 H mm 2290 MCS Shipping Weight kg MCS Operation Weight kg MHS Shipping Weight kg MHS Operation Weight kg Unit Operation Instructions, Conformity Certificate, Warranty Application Form, Spring Damper, Water Flow Switch. Notes: *1. Cooling capacity is based on the following conditions: Entering chilled water temp. 12 C, Leaving chilled water temp. 7 C, ambient temp. 35 C DB *2. Heating capacity is based on the following conditions: Entering chilled water temp. 40 C, Leaving chilled water temp. 45 C, ambient temp. 7 C DB Conversion Formulae kcal/h=kw 860 Btu/h=kW 3414 cfm=m³/min

21 MHS/MCS kw *1 Normal Cooling Capacity USRT kcal/h 360, , , , ,000 Btu/h 1,410,000 1,520,000 1,760,000 2,09,000 2,190,000 kw *2 Normal Heating Capacity 10 4 kcal/h Btu/h Capacity Steps 25 ~ 100% Power Supply V/3N/50Hz Semi-hermetic Single-screw Compressor No. Model Motor Power Input Cooling kw Motor Power Input Heating kw Refrigerant Model LPT68 Oil Charge L High-efficiency Shell and Tube Evaporator Flow Rate L/min Pressure Drop kpa Cross Fin and Tube Condenser Rows Stages FPI 14 Face Area m Propeller (Direct Drive) Qty Fan m 3 /min. 2,400 2,400 3,000 3,000 3,600 Air Flow Rate cfm 84,720 84, , , ,080 Motor Input kw R22 Refrigerant No. of Circuits Control Electronic Expansion Valve Water Piping Connection inch 8 Compressor Acoustic Insulation Material Polyurethane Foaming Unit Power Input kw Unit Dimensions Weight Standard Accessories L mm W mm 2260 H mm MCS Shipping Weight kg MCS Operation Weight kg MHS Shipping Weight kg MHS Operation Weight kg Unit Operation Instructions, Conformity Certificate, Warranty Application Form, Spring Damper, Water Flow Switch. Notes: *1. Cooling capacity is based on the following conditions: Entering chilled water temp. 12 C, Leaving chilled water temp. 7 C, ambient temp. 35 C DB *2. Heating capacity is based on the following conditions: Entering chilled water temp. 40 C, Leaving chilled water temp. 45 C, ambient temp. 7 C DB Conversion Formulae kcal/h=kw 860 Btu/h=kW 3414 cfm=m³/min

22 MHS/MCS kw *1 Normal Cooling Capacity USRT kcal/h 610, , , , ,000 Btu/h 2,410,000 2,610,000 2,850,000 3,180,000 3,340,000 kw *2 Normal Heating Capacity 10 4 kcal/h Btu/h Capacity Steps 12.5 ~ 100% Power Supply V/3N/50Hz Semi-hermetic Single-screw No. Model Compressor Motor Power Input Cooling kw Motor Power Input Heating kw Refrigerant Model LPT68 Oil Charge L High-efficiency Shell and Tube Evaporator Flow Rate L/min Pressure Drop kpa Cross Fin and Tube Condenser Rows Stages FPI 14 Face Area m Propeller (Direct Drive) Qty Fan m 3 /min. 4,200 4,500 4,800 4,800 5,100 Air Flow Rate cfm 148, , , , ,030 Motor Input kw R22 Refrigerant No. of Circuits Control Electronic Expansion Valve Water Piping Connection inch 8 Compressor Acoustic Insulation Material Polyurethane Foaming Unit Power Input kw Unit Dimensions Weight Standard Accessories L mm W mm 2260 H mm 2330 MCS Shipping Weight kg MCS Operation Weight kg MHS Shipping Weight kg MHS Operation Weight kg Unit Operation Instructions, Conformity Certificate, Warranty Application Form, Spring Damper, Water Flow Switch. Notes: *1. Cooling capacity is based on the following conditions: Entering chilled water temp. 12 C, Leaving chilled water temp. 7 C, ambient temp. 35 C DB *2. Heating capacity is based on the following conditions: Entering chilled water temp. 40 C, Leaving chilled water temp. 45 C, ambient temp. 7 C DB Conversion Formulae kcal/h=kw 860 Btu/h=kW 3414 cfm=m³/min

23 MHS/MCS kw *1 Normal Cooling Capacity USRT kcal/h 900, ,200 1,100,000 Btu/h 3,580,000 3,890,000 4,350,000 kw *2 Normal Heating Capacity 10 4 kcal/h Btu/h Capacity Steps 12.5 ~ 100% Power Supply V/3N/50Hz Semi-hermetic Single-screw Compressor No. Model Motor Power Input Cooling kw Motor Power Input Heating kw Refrigerant Oil Model LPT68 Charge L High-efficiency Shell and Tube Evaporator Flow Rate L/min Pressure Drop kpa Cross Fin and Tube Condenser Rows Stages FPI 14 Face Area m Propeller (Direct Drive) Qty Fan m 3 /min. 5,400 5,700 6,000 Air Flow Rate cfm 190, , ,800 Motor Input kw R22 Refrigerant No. of Circuits Control Electronic Expansion Valve Water Piping Connection inch 8 Compressor Acoustic Insulation Material Polyurethane Foaming Unit Power Input kw Unit Dimensions Weight Standard Accessories L mm W mm 2260 H mm 2330 MCS Shipping Weight kg MCS Operation Weight kg MHS Shipping Weight kg MHS Operation Weight kg Unit Operation Instructions, Conformity Certificate, Warranty Application Form, Spring Damper, Water Flow Switch. Notes: *1. Cooling capacity is based on the following conditions: Entering chilled water temp. 12 C, Leaving chilled water temp. 7 C, ambient temp. 35 C DB *2. Heating capacity is based on the following conditions: Entering chilled water temp. 40 C, Leaving chilled water temp. 45 C, ambient temp. 7 C DB Conversion Formulae kcal/h=kw 860 Btu/h=kW 3414 cfm=m³/min

24 5.4 MHS/MCS050.1FLN~MCS350.2FLN[R407C] MHS/MCS kw *1 Normal Cooling Capacity USRT kcal/h 140, , , , ,000 Btu/h 550, , , ,000 1,160,000 kw *2 Normal Heating Capacity 10 4 kcal/h Btu/h Capacity Steps 25 ~ 100% Power Supply V/3N/50Hz Semi-hermetic Single-screw Compressor No. Model Motor Power Input Cooling kw Motor Power Input Heating kw Refrigerant Model RL68H Oil Charge L High-efficiency Shell and Tube Evaporator Flow Rate L/min Pressure Drop kpa Cross Fin and Tube Condenser Rows Stages FPI 14 Face Area m Propeller (Direct Drive) Qty Fan m 3 /min. 1,200 1,200 1,800 1,800 2,400 Air Flow Rate cfm 42,360 42,360 63,540 63,540 84,720 Motor Input kw R407C Refrigerant No. of Circuits Control Electronic Expansion Valve Water Piping Connection inch 5 Compressor Acoustic Insulation Material Polyurethane Foaming Unit Power Input kw Unit Dimensions Weight Standard Accessories L mm W mm 2260 H mm 2290 MCS Shipping Weight kg MCS Operation Weight kg MHS Shipping Weight kg MHS Operation Weight kg Unit Operation Instructions, Conformity Certificate, Warranty Application Form, Spring Damper, Water Flow Switch. Notes: *1. Cooling capacity is based on the following conditions: Entering chilled water temp. 12 C, Leaving chilled water temp. 7 C, ambient temp. 35 C DB *2. Heating capacity is based on the following conditions: Entering chilled water temp. 40 C, Leaving chilled water temp. 45 C, ambient temp. 7 C DB Conversion Formulae kcal/h=kw 860 Btu/h=kW 3414 cfm=m³/min

25 MHS/MCS kw *1 Normal Cooling Capacity USRT kcal/h 340, , , , ,000 Btu/h 1,360,000 1,470,000 1,690,000 2,020,000 2,110,000 kw *2 Normal Heating Capacity 10 4 kcal/h Btu/h Capacity Steps 25 ~ 100% Power Supply V/3N/50Hz Semi-hermetic Single-screw Compressor No. Model Motor Power Input Cooling kw Motor Power Input Heating kw Refrigerant Oil Model RL68H Charge L High-efficiency Shell and Tube Evaporator Flow Rate L/min Pressure Drop kpa Cross Fin and Tube Condenser Rows Stages FPI 14 Face Area m Propeller (Direct Drive) Qty Fan m 3 /min. 2,400 2,400 3,667 3,000 3,600 Air Flow Rate cfm 84,720 84, , , ,080 Motor Input kw R407C Refrigerant No. of Circuits Control Electronic Expansion Valve Water Piping Connection inch 8 Compressor Acoustic Insulation Material Polyurethane Foaming Unit Power Input kw Unit Dimensions Weight Standard Accessories L mm W mm 2260 H mm MCS Shipping Weight kg MCS Operation Weight kg MHS Shipping Weight kg MHS Operation Weight kg Unit Operation Instructions, Conformity Certificate, Warranty Application Form, Spring Damper, Water Flow Switch. Notes: *1. Cooling capacity is based on the following conditions: Entering chilled water temp. 12 C, Leaving chilled water temp. 7 C, ambient temp. 35 C DB *2. Heating capacity is based on the following conditions: Entering chilled water temp. 40 C, Leaving chilled water temp. 45 C, ambient temp. 7 C DB Conversion Formulae kcal/h=kw 860 Btu/h=kW 3414 cfm=m³/min

26 MHS/MCS kw *1 Normal Cooling Capacity USRT kcal/h 590, , , , ,000 Btu/h 2,320,000 2,520,000 2,710,000 3,070,000 3,230,000 kw *2 Normal Heating Capacity 10 4 kcal/h Btu/h Capacity Steps 12.5 ~ 100% Power Supply V/3N/50Hz Semi-hermetic Single-screw No. Model Compressor Motor Power Input Cooling kw Motor Power Input Heating kw Refrigerant Model RL68H Oil Charge L High-efficiency Shell and Tube Evaporator Flow Rate L/min Pressure Drop kpa Cross Fin and Tube Condenser Rows Stages FPI 14 Face Area m Propeller (Direct Drive) Qty Fan m 3 /min. 4,200 4,500 4,800 4,800 5,100 Air Flow Rate cfm 148, , , , ,030 Motor Input kw R407C Refrigerant No. of Circuits Control Electronic Expansion Valve Water Piping Connection inch 8 Compressor Acoustic Insulation Material Polyurethane Foaming Unit Power Input kw Unit Dimensions Weight Standard Accessories L mm W mm 2260 H mm 2330 MCS Shipping Weight kg MCS Operation Weight kg MHS Shipping Weight kg MHS Operation Weight kg Unit Operation Instructions, Conformity Certificate, Warranty Application Form, Spring Damper, Water Flow Switch. Notes: *1. Cooling capacity is based on the following conditions: Entering chilled water temp. 12 C, Leaving chilled water temp. 7 C, ambient temp. 35 C DB * 2. Heating capacity is based on the following conditions: Entering chilled water temp. 40 C, Leaving chilled water temp. 45 C, ambient temp. 7 C DB Conversion Formulae kcal/h=kw 860 Btu/h=kW 3414 cfm=m³/min

27 MHS/MCS kw *1 Normal Cooling Capacity USRT kcal/h 870, ,000 1,060,000 Btu/h 3,450,000 3,750,000 4,190,000 kw *2 Normal Heating Capacity 10 4 kcal/h Btu/h Capacity Steps 12.5 ~ 100% Power Supply V/3N/50Hz Semi-hermetic Single-screw Compressor No. Model Motor Power Input Cooling kw Motor Power Input Heating kw Refrigerant Model RL68H Oil Charge L High-efficiency Shell and Tube Evaporator Flow Rate L/min Pressure Drop kpa Cross Fin and Tube Condenser Rows Stages FPI 14 Face Area m Propeller (Direct Drive) Qty. 18 TFE TFE TFE Fan m 3 /min. 5,400 5,700 6,000 Air Flow Rate cfm 190, , ,800 Motor Input kw R407C Refrigerant No. of Circuits Control Electronic Expansion Valve Water Piping Connection inch 8 Compressor Acoustic Insulation Material Polyurethane Foaming Unit Power Input kw L mm Unit W mm 2260 Dimensions H mm 2330 MCS Shipping Weight kg Weight MCS Operation Weight kg MHS Shipping Weight kg MHS Operation Weight kg Standard Accessories Unit Operation Instructions, Conformity Certificate, Warranty Application Form, Spring Damper, Water Flow Switch. Notes: *1. Cooling capacity is based on the following conditions: Entering chilled water temp. 12 C, Leaving chilled water temp. 7 C, ambient temp. 35 C DB *2. Heating capacity is based on the following conditions: Entering chilled water temp. 40 C, Leaving chilled water temp. 45 C, ambient temp. 7 C DB Conversion Formulae kcal/h=kw 860 Btu/h=kW 3414 cfm=m³/min

28 6. Correction Fouling factors (water side heat exchanger) Fouling factor (m 2 C/kw) Cooling capacity correction Power correction COP correction Altitude correction factors Elevation above sea level (m) Barometric pressure (bar) Cooling capacity correction factor Power input correction factor Ethylene glycol correction factors % Of ethylene glycol by weight Cooling capacity correction factor Power input correction factor Water flow rate correction factor Water pressure drops correction factor Low temperature operation performance factors Ethylene glycol leaving water temperature of chilled water ( C) Max. ambient temperature ( C) Cooling capacity correction factor Power input of compressor correction factor Min. % of ethylene glycol Notes: Average sound pressure level is according to ISO 3744, semispheric free field conditions. Sound pressure levels are referred to units furnished without hydraulic kit. Measuring location is at 1m from the unit in semispheric free field (rif Pa). 28

29 7. Capacity Tables 7.1 Cooling Capacity Tables MHS/MCS050.1FST~MHS/MCS380.2FST[R22] Model MHS050.1 MHS060.1 MHS070.1 MHS080.1 MHS100.1 MHS120.1 MHS135.1 MHS150.1 MHS170.1 LWT C NOTES: CAP: cooling capacity (kw) PI: power input (kw) Ambient temperature ( C) CAP PI CAP PI CAP PI CAP PI CAP PI CAP PI kw

30 Model MHS185.1 MHS200.2 MHS220.2 MHS235.2 MHS260.2 MHS285.2 MHS310.2 MHS330.2 MHS350.2 MHS380.2 LWT C Ambient temperature ( C) CAP PI CAP PI CAP PI CAP PI CAP PI CAP PI kw NOTES: CAP: cooling capacity (kw) PI: power input (kw) 30

31 7.1.2 MHS050.1FST~MHS350.2FST[R407C] Model MHS050.1 MHS060.1 MHS070.1 MHS080.1 MHS100.1 MHS120.1 MHS135.1 MHS150.1 MHS170.1 LWT C Ambient temperature ( C) CAP PI CAP PI CAP PI CAP PI CAP PI CAP PI kw NOTES: CAP: cooling capacity (kw) PI: power input (kw) 31

32 Model MHS185.1 MHS200.2 MHS220.2 MHS235.2 MHS260.2 MHS285.2 MHS310.2 MHS330.2 MHS350.2 LWT C Ambient temperature ( C) CAP PI CAP PI CAP PI CAP PI CAP PI CAP PI kw NOTES: CAP: cooling capacity (kw) PI: power input (kw) 32

33 7.1.3 MHS050.1FLN~MHS350.2FLN[R22] Model MHS050.1 MHS060.1 MHS070.1 MHS080.1 MHS100.1 MHS120.1 MHS135.1 MHS150.1 MHS170.1 LWT C Ambient temperature ( C) CAP PI CAP PI CAP PI CAP PI CAP PI kw NOTES: CAP: cooling capacity (kw) PI: power input (kw) 33

34 Model MHS185.1 MHS200.2 MHS220.2 MHS235.2 MHS260.2 MHS285.2 MHS310.2 MHS330.2 MHS350.2 LWT C Ambient temperature ( C) CAP PI CAP PI CAP PI CAP PI CAP PI kw NOTES: CAP: cooling capacity (kw) PI: power input (kw) 34

35 Model MHS050.1 MHS060.1 MHS070.1 MHS080.1 MHS100.1 MHS120.1 MHS135.1 MHS150.1 MHS170.1 LWT C Ambient temperature ( C) CAP PI CAP PI CAP PI CAP PI CAP PI kw NOTES: CAP: cooling capacity (kw) PI: power input (kw) 35

36 Model MHS185.1 MHS200.2 MHS220.2 MHS235.2 MHS260.2 MHS285.2 MHS310.2 MHS330.2 MHS350.2 LWT C Ambient temperature ( C) CAP PI CAP PI CAP PI CAP PI CAP PI kw NOTES: CAP: cooling capacity (kw) PI: power input (kw) 36

37 7.2 Heating Capacity Table MHS050.1FST2-MHS380.1FST2 Model MHS050.1 MHS060.1 MHS070.1 MHS080.1 MHS100.1 MHS120.1 MHS135.1 MHS150.1 MHS170.1 MHS185.1 MHS200.2 MHS220.2 MHS235.2 MHS260.2 MHS285.2 MHS310.2 Ambient temperature ( C) LWT C CAP PI CAP PI CAP PI CAP PI CAP PI CAP PI CAP PI CAP PI kw

38 Ambient temperature ( C) Model MHS330.2 MHS350.2 MHS LWT C CAP PI CAP PI CAP PI CAP PI CAP PI CAP PI CAP PI CAP PI kw

39 7.2.2 MHS050.1FST4-MHS380.2FST4 Ambient temperature ( C) Model MHS050.1 MHS060.1 MHS070.1 MHS080.1 MHS100.1 MHS120.1 MHS135.1 MHS150.1 MHS170.1 MHS185.1 MHS200.2 MHS220.2 MHS235.2 MHS260.2 MHS285.2 MHS LWT C CAP PI CAP PI CAP PI CAP PI CAP PI CAP PI CAP PI CAP PI kw

40 Model MHS330.2 MHS350.2 Ambient temperature ( C) LWT C CAP PI CAP PI CAP PI CAP PI CAP PI CAP PI CAP PI CAP PI kw

41 7.2.3 MHS050.1FLN2-MHS380.2FLN2 Ambient temperature ( C) Model LWT C CAP PI CAP PI CAP PI CAP PI CAP PI CAP PI CAP PI CAP PI MHS050.1 MHS060.1 MHS070.1 MHS080.1 MHS100.1 MHS120.1 MHS135.1 MHS150.1 MHS170.1 MHS185.1 MHS200.2 MHS220.2 MHS235.2 MHS260.2 MHS285.2 MHS310.2 k

42 Model Ambient temperature ( C) LWT C CAP PI CAP PI CAP PI CAP PI CAP PI CAP PI CAP PI CAP PI MHS330.2 MHS

43 7.2.4 MHS050.1FLN4-MHS380.2FLN4 Ambient temperature ( C) Model LWT C CAP PI CAP PI CAP PI CAP PI CAP PI CAP PI CAP PI CAP PI MHS050.1 MHS060.1 MHS070.1 MHS080.1 MHS100.1 MHS120.1 MHS135.1 MHS150.1 MHS170.1 MHS185.1 MHS200.2 MHS220.2 MHS235.2 MHS260.2 MHS285.2 MHS310.2 kw

44 Ambient temperature ( C) Model LWT C CAP PI CAP PI CAP PI CAP PI CAP PI CAP PI CAP PI CAP PI MHS330.2 MHS350.2 kw

45 8. Pressure Drop Through Evaporator Pressure drop (KPa) Water flow rate (L/S) 45

46 9. Dimensions MCS050~060 / MHS050~ "(OD139.7) 5"(OD139.7) Condensor 2 Evaporator 3 Evaporator water inlet 4 Evaporator water outlet 5 Control box 6 Fans unit: mm

47 MCS050~060 / MHS050~060 : 47

48 MCS070~080 / MHS070~080 : 48

49 MCS100~185 / MHS100~185 : ) ) ) ) ) 49

50 MCS200~380 / MHS200~380 ) ) ) ) : 50

51 MCS100~185 / MHS100~185 H C 4 A B unit: mm D Note: Fans No.could be found from the technical param eters. E MODEL MCS(MHS)100.1F MCS(MHS)120.1F MCS(MHS)135.1F MCS(MHS)150/170.1F MCS(MHS)185.1F L Dimension/mm A B C D E H L Water connections 5"(OD139.7) 8"(OD219.1) 8"(OD219.1) 8"(OD219.1) 8"(OD219.1) 1 Condensor 2 Evaporator Fans Evaporator water outlet Evaporator water intlet Control box 51

52 MCS200~380 / MHS200~380 H L 2 3 C B A Dimension/mm A B C D E Note: Fans No.could be found from the technical param eters H L Water connections 8"(OD219.1) 8"(OD219.1) 8"(OD219.1) 8"(OD219.1) Condensor Evaporator Evaporator water outlet Evaporator water intlet Control box 6 Fans unit: mm D E MODEL MCS(MHS)200.2F MCS(MHS)220/235/260.2F MCS(MHS)285/310.2F MCS(MHS)330/350/380.2F 52

53 10. Foundation MCS050~060 / MHS050~060 Installation base Unit base Control box A B Distribution of shock absorber A B Load of spring shock absorber (kg) Unit model A B MCS 050.1/ MHS 050.1/ Unit: mm MCS070~080 / MHS070~080 Installation base Unit base Control box A B Distribution of shock absorber A B Load of spring shock absorber (kg) Unit model A B MCS 070.1/ MHS 070.1/ Unit: mm 53

54 MCS100 / MHS100 Installation base Unit base A B C Control box Distribution of shock absorber A B C Load of spring shock absorber (kg) Unit model A B C MCS MHS Unit: mm MCS120 / MHS120 Installation base Unit base A B C Control box Distribution of shock absorber A B C Load of spring shock absorber (kg) Unit model A B C MCS MHS Unit: mm 54

55 MCS135 / MHS135 Installation base Unit base A B C Control box Distribution of shock absorber A B C Load of spring shock absorber (kg) Unit model A B C MCS MHS Unit: mm MCS150~170 / MHS150~170 Installation base Unit base A B C Control box Distribution of shock absorber A B C Load of spring shock absorber (kg) Unit model A B C MCS150.1/ MHS150.1/ Unit: mm 55

56 MCS185 / MHS185 Installation base Unit base A B C Control box Distribution of shock absorber A B C Load of spring shock absorber (kg) Unit model A B C MCS MHS Unit: mm MCS200 / MHS200 Installation base Unit base A B C D Control box Distribution of shock absorber A B C D Load of spring shock absorber (kg) Unit model A B C D MCS MHS Unit: mm 56

57 MCS220~235 / MHS220~235 Installation base Unit base A B C D Control box Distribution of shock absorber A B C D Load of spring shock absorber (kg) Unit model A B C D MCS MHS MCS MHS Unit: mm MCS260 / MHS260 Installation base Unit base A B C D Control box Distribution of shock absorber A B C D Load of spring shock absorber (kg) Unit model A B C D MCS MHS Unit: mm 57

58 MCS285~310/MHS285~310 Installation base Unit base A B C D Control box Distribution of shock absorber A B C D Unit: mm Load of spring shock absorber (kg) Unit model A B C D MCS MHS MCS MHS MCS330~380/MHS330~380 Installation base Unit base Control box Distribution of shock absorber A B C D E A B C D E Unit: mm Load of spring shock absorber (kg) Unit model A B C D E MCS MHS MCS MHS MCS MHS Note: The unit should be set on a horizontal flat foundation, ground floor or building roof capable of supporting the operating weight of the entire equipment. See Specifications for the operating weight. Levelness of ground base 0.1%. A drainage ditch shall be set around the earth base to prevent water logging, and the foundation shall have smooth edge. The foundation shall have enough strength to support the operating weight of the entire unit (the water piping having counted on the support). A spring damper shall be installed between the unit and the ground base. Set bolts shall not be pre-buried. The model of shock absorber shall be chosen according to the load to be carried, and cannot be exchanged. 58

59 11. Sound Level 11.1 ST Overall Sound Level and Octave Band Level Model MHS/MCS Octave band level Hz Overall dba 050.1FST 060.1FST 070.1FST 080.1FST 100.1FST 120.1FST 135.1FST 150.1FST 170.1FST 185.1FST 200.2FST 220.2FST 235.2FST 260.2FST 285.2FST 310.2FST 330.2FST 350.2FST 380.2FST Notes: Average sound pressure level is according to ISO 3744, semispheric free field conditions. Sound pressure levels are referred to units furnished without hydraulic kit. Measuring location is at 1m from the unit in semispheric free field (rif Pa). 59

60 11.2 LN Overall Sound Level and Octave Band Level Model MHS/MCS Octave band level Hz Overall dba 050.1FLN 060.1FLN 070.1FLN 080.1FLN 100.1FLN 120.1FLN 135.1FLN 150.1FLN 170.1FLN 185.1FLN 200.2FLN 220.2FLN 235.2FLN 260.2FLN 285.2FLN 310.2FLN 330.2FLN 350.2FLN Notes: Average sound pressure level is according to JB/T , semispheric free field conditions. Sound pressure levels are referred to units furnished without hydraulic kit. Measuring location is at 1m from the unit in semispheric free field (rif Pa). 60

61 12. Electric Characteristics 12.1 Wiring Diagram MCS050/060/070/080/100/120/135/150/170/185.1FST2(4) COMPRESSOR POWER SUPPLY FAN POWER SUPPLY 61

62 FAN POWER SUPPLY FAN POWER SUPPLY 62

63 UNIT CONTROL CIRCUIT POWER SUPPLY ELECTRONIC EXPANSION VALVE WIRING DIAGRAM 63

64 CONTROL CIRCUIT WIRING DIAGRAN CONTROL CIRCUIT WIRING DIAGRAN 64

65 CONTROL CIRCUIT WIRING DIAGRAN SYMBOL DESCRIPTION SHEET 65

66 MCS200/220/235/260/285/310/330/350/380.2FST2(4) COMPRESSOR POWER SUPPLY FAN POWER SUPPLY(SYS.1) 66

67 FAN POWER SUPPLY(SYS.2) FAN POWER SUPPLY(SYS.1) 67

68 FAN POWER SUPPLY(SYS.2) UNIT CONTROL CIRCUIT POWER SUPPLY 68

69 ELECTRONIC EXPANSION VALVE WIRING DIAGRAM CONTROL CIRCUIT WIRING DIAGRAM 69

70 CONTROL CIRCUIT WIRING DIAGRAM CONTROL CIRCUIT WIRING DIAGRAM 70

71 SYMBOL DESCRIPTION SHEET 71

72 MHS050/060/070/080/100/120/135/150/170/185.1FST2(4) COMPRESSOR POWER SUPPLY FAN POWER SUPPLY 72

73 FAN POWER SUPPLY FAN POWER SUPPLY 73

74 UNIT CONTROL CIRCUIT POWER SUPPLY ELECTRONIC EXPANSION VALVE WIRING DIAGRAM 74

75 CONTROL CIRCUIT WIRING DIAGRAM CONTROL CIRCUIT WIRING DIAGRAM 75

76 CONTROL CIRCUIT WIRING DIAGRAM CONTROL CIRCUIT WIRING DIAGRAM 76

77 SYMBOL DESCRIPTION SHEET 77

78 MHS200/220/235/260/285/310/330/350/380.2FST2(4) COMPRESSOR POWER SUPPLY FAN POWER SUPPLY(SYS.1) 78

79 FAN POWER SUPPLY(SYS.2) FAN POWER SUPPLY(SYS.1) 79

80 FAN POWER SUPPLY(SYS.2) UNIT CONTROL CIRCUIT POWER SUPPLY 80

81 ELECTRONIC EXPANSION VALVE WIRING DIAGRAM CONTROL CIRCUIT WIRING DIAGRAM 81

82 CONTROL CIRCUIT WIRING DIAGRAM CONTROL CIRCUIT WIRING DIAGRAM 82

83 CONTROL CIRCUIT WIRING DIAGRAM SYMBOL DESCRIPTION SHEET 83

84 12.2 Electrical Data Model MHS/MCS Unit Volts-Ph-Hz Voltage range Starting Comp.(each) Fan motor(each) Unit Qty. LRA MFA Qty. kw FLA MRA RLA Inrush Amps 050.1FST2/ FST FST2/ FST FST2/ FST FST2/ FST FST2/ FST FST2/ FST FST2/ FST FST2/ FST FST2/ FST FST2/ FST FST2/ FST FST2/ FST FST2/ FST FST2/ FST FST2/ FST FST2/ FST FST2/ FST FST2/ FST /3N/50Hz Max.440V Min.342V Star-Delta 380.2FST Notes: LRA -- Locked rotor Amps in Delta for each compressor. MFA -- Max. Fuse Amps for each compressor. FLA -- Full Load Amps for each fan motor. MRA -- Max. Running Amps for unit (based on outdoor temp. 44 C) leaving water temp.15 C. RLA -- Rated load Amps for unit (based on outdoor temp. 35 C) leaving water temp.15 C. Inrush Amps -- Single System: Compressor inrush current + Control circuit current. Dual System: Inrush current of Max. size compressor running current of small size compressor (based on outdoor temp. 44 C) + Fan current + Control circuit current. The size of power cable and breaker is recommended larger than MRA, ensuring the breaker doesn't trip off while the chiller is starting. 84

85 13. System Diagram 13.1 Cooling System 13.2 Heating pump system 85

86 14. Installation 14.1 Location of Water Circulating Pump If locations of a pump and an expansion tank are wrong, air is intermixed into the chilled water system, which may reduce capacity of the water chiller and cause abnormal noise. Be sure to install the pump on. 86

87 Air Cooled Single Screw Chiller 14.2 Moving and Lifting Please perform the following checks before lifting No. Check items and requirements Treatment when not conformed 1 Lifting safety measure must in compliance with local laws and regulations. Add the proper safety measure as required. 2 Lifting must be performed in accordance with this Manual. Do it as required. 3 Avoid bumping and/or jolting during unloading from the lorry and moving Add more equipment to avoid bumping. the machine. 4 Prohibit staying under the crane or machine during lifting. Follow the lifting regulations. 5 Add some insulation between the lifting ropes and machine to avoid Add more equipment to avoid scraping. scraping Lifting method Use proper Lifting method: Please use spreader bar and the lifting holes of the machine when lifting to avoid damage to the equipments. The hoisting belt (such as tight wire, nylon)should be twice and not shorter than ten meters(or four not shorter than five meters),and both sides of pole should be extended over 100mm out of unit in order to prevent the hoisting belt from damaging unit. (Refer to the figure) MHS/MCS050~200 lifting figure The increase of length and weight of MHS220~380 units bring a lot of difficulties to hoisting work. The number of lifting ropes and holes which used for units can be according to actual needs. (Refer to the figure) MHS/MCS220~380 lifting figure It is necessary that the unit maintain a level when being hoisted. Tilt angle should be less than 15 degrees, otherwise the unit may be overturned. 87

88 14.3 Refer to the following items if the units are installed where there s plenty of snow: Don t install the unit under the eaves. Incorrect Correct Correct way to lift Elevate the installation height of the unit( unit base is recommended 1m higher than the highest accumulated snow.) Snow accumulation size Snow accumulation size Incorrect Correct Don t install unit at places where snow will be accumulated. Incorrect 88

89 14.4 When two or more units are positioned side by side, it s recommended that follow the below figure to do the installation: Lateral layout Lengthways layout

90 14.5 Hydraulic System Installation After the unit installation, the piping installation begins. It s advised to follow the installation regulation so that installation of hydraulic system is efficient. There should be no dust in the piping. All the piping should follow the local regulation and rules. Since the bends, three-way joints and valves will affect the performance of water pump, all piping should be as straight and simple as possible; It is recommended to apply manual shut-off valve on all piping for maintenance; Draining pipe should be installed at the lowest point of water circuit in order to drain out the evaporator and pipeline; Air relief valve should be installed at the highest point of water circuit in order to remove the air from hydraulic system. Thermal insulation is not needed for draining pipe and air relief valve for easy service; According to the requirement of the project, the design of evaporator should follow the items below: 1) The outlet of the pump should be connected with the inlet of the evaporator. The inlet of the pump should be entering water tube, not evaporator 2) A more than 25 meshes strainer must be installed at the inlet of evaporator. 3) The chilled water pipe must be cleaned completely by bypass. It s prohibited to use shell and tube evaporator to clean the pipe. 4) It is recommended that thermometer and pressure gauge be installed at the inlet and outlet of water exchangers for easy service. 5) Chilled water pipe outdoor should be covered with electric heater, and with heat insulation to prevent freezing or dew under low temperature. 6) A flow switch must be applied at the outlet of evaporator. The minimum length of straight pipeline on both sides of flow switch should be more than five times of pipe diameter. Warning: Water flow can't be used for Switch ON/OFF. It s a safety switch. 90

91 15. Guide Specifications General Before shipment a full test will be held to avoid any losses. Chiller will be delivered to the job site completely assembled and charged with refrigerant and oil. Comply with the manufacturer instructions for rigging and handling equipment. The unit will be able to start up and operate as standard at full load and outside air temperature from C to C with an evaporator leaving fluid temperature between C and 15 C. Performance Number of unit: Cooling capacity for single air-cooled water chiller: kw Power input for single air-cooled water chiller: kw Evaporator entering water temperature: C Evaporator leaving water temperature: C Evaporator water flow: L/min Outside working ambient temperature: C The unit should work with electricity at V ±10%, 3ph, 50Hz without neutral and shall only have one power connection point. The control circuit voltage shall be 24V maximum, supplied by a factoryinstalled transformer. The electrical power absorbed should not exceed kw Unit description Each chiller consists of multiple semi-hermetic rotary screw compressor, direct expansion shell & tube evaporator, air-cooled condenser section, control system and all components necessary for safety. The units will have 2 independent refrigerant circuits, and the respective electronic microprocessor will allow the starting of the compressors. Each chiller will be factory assembled on a robust base-frame made of zinc coated steel, protected by an epoxy paint. Noise 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 Other types of rating are unacceptable. Vibration level should not exceed 2mm/s. Dimensions Unit dimensions shall not exceed following indications: Unit length mm Unit width mm Unit height mm Compressors The compressors shall be field serviceable, semi-hermetic, single-screw type with one main helical rotor meshing with gate-rotor. The gate-rotor will be constructed of a carbon impregnated engineered composite material. The gate-rotor supports will be constructed of cast iron. The compressor shall be provided with an automatic spring return of capacity control valve to the minimum load position to ensure compressor starting always at minimum motor load, with minimum inrush current. The oil injection shall be used in order to get high EER (Energy Efficiency Ratio) also at any load conditions. Refrigerant system differential pressure shall provide oil flow through service replaceable, and cartridge type oil filter internal to compressor. Refrigerant system differential pressure shall provide oil injection on all moving compressor parts to correctly lubricate them. The compressor's oil cooling must be realized, when necessary, by liquid injection. External dedicated heat exchanger and additional piping to carry the oil from the compressor to heat exchanger and vice versa will be not accepted. The compressor shall be provided with an integrated, high efficiency, cyclonic type oil separator and with built-in oil filter. The compressor shall be direct electrical drive ( Hz), without gear transmission between 91

92 the screw and the electrical motor. The motor's compressor shall be provided with star/delta start (D/Y) as standard. The compressor casing shall be provided with ports to realize refrigerant economizer actions. Shall be present two thermal protections realized by temperature sensors: one is to protect motor temperature and the other against high discharge gas temperature. The compressor shall be equipped with an electric oil-crankcase heater. Regulation of cooling capacity Each unit will have a microprocessor for the control of compressor slide valve's position. The capacity control shall modulate slide valve's capacity from 100% to 25% for each compressor (from 100% down to 12,5% of full load for unit with 2 compressors). The chiller shall be capable of stable operation to a minimum of 12,5% of full load, without hot gas bypass. Step unloading unacceptable because of evaporator leaving water temperature fluctuation and low compressor's efficiency at partial load. The system shall stage the unit based on the leaving evaporator water temperature that shall be controlled by a PID (Proportional Integral Derivative) loop. Evaporator The units shall be supplied with shell and tubes counter-flow evaporator with single pass refrigerant. It will be refrigerant direct expansion type with refrigerant inside the tubes and water outside (shell side). It will include carbon steel tube sheets, with straight copper tubes internally wound for higher efficiencies, expanded on the tube plates. The external shell shall be linked with an electrical heater to prevent freezing down to -15 C ambient temperature, commanded by a thermostat and shall be insulated with flexible, closed cell polyurethane insulation material (20mm thick). The evaporator will have 2 circuits, one for each compressor and shall be single refrigerant pass. The water connections shall be VICTAULIC type connections as standard to ensure quick mechanical disconnection between the unit and the hydraulic network. Condenser coil The condenser coils are constructed with internally finned seamless copper tubes of a "W" shape and arranged in a staggered row pattern and mechanically expanded into lanced and rippled aluminum fins with full fin collars for higher efficiencies. The space between the fins are given by a collar that will increase the surface area in connection with the tubes, protecting them from ambient corrosion. The coils will have an integral sub cooler circuit that provides sufficient sub cooling to effectively eliminate the possibility of liquid flashing and increase the unit's efficiency of 5-7% without increasing in power absorption. The condenser coil shall be leak-tested and submitted to a pressure test with dry air. The total coil surface area will be designed in order to have an air velocity not higher than 3.05m/sec. Condenser fans The fans used in conjunction with the condenser coils, shall be helical type with aerofoil blades for higher efficiencies and lower noise. 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 -40 C to +55 C. They shall have individual overload protection via a disconnect switch. Refrigerant circuit The unit must have refrigerant circuits completely independent of each other with one compressor per circuit. Each circuit shall include: thermostatic expansion device, compressor discharge shut-off valve, a liquid line shut-off valve with charging connection, replaceable core filter-drier, sight glass with moisture indicator and insulated suction line. Suction line shut-off valve should be available as option. 92

93 Condensing pressure control The units will be provided with an automatic control for condensing pressure, ensuring a proper condensing pressurethe. Fan speed control, allows unit's operation with very low ambient temperature down to -15 C. Automatic compressor unloading, prevents the shutdown of the refrigerant circuit (shutdown of the unit) due to a high-pressure fault. Control panel Unit control system should be centrally located in an electric panel (IP 54). Power and controls should be separated and operating in different compartments of the same panel. Compressor contactor sequence will be star/delta type. Power and starting controls should include fuses and contactors for each compressor motor coil and fan motors. Operating and safety controls should include energy saving control; emergency stop switch; overload protection for compressor motor; high and low pressure cutout switch (for each refrigerant circuit); anti-freeze thermostat; shut off 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: Chilled water temperature reset, controlled from the return water temperature or through a remote 4-20 ma DC signal or external ambient temperature; Soft load function to prevent the system from operating at full load during the chilled fluid pull down period; Password protection of critical parameters; Start-to-start and stop-to-star timers to provide minimum compressor off-time with maximum motor protection; Communication capability with a PC or remote monitoring; Discharge pressure control through intelligent cycling of condenser fans; Lead-lag selection by manual or automatically by circuit based on run hours; Double set point for glycol unit version; Scheduling via internal time clock to allow programming of a yearly start-stop schedule accommodating weekends and holidays. Display Capabilities The controller as a minimum shall be capable of monitoring and displaying the following data: No. Analogue Inputs (AI) No. Digital Inputs (DI) 1 E ntering Evaporator fluid Temp. 1 Control switch one per comp. 2 Leaving Evaporator fluid Temp. 2 Evaporator water flow switch 3 Outside Air Temp. 3 Phase monitor 4 Not used 4 Double Set point (Ice Mode) 5 Discharge Press., one per comp. 5 High Press. Switch, one per compressor 6 Discharge Press., one per comp. 6 High Press. Switch, one per compressor 7 S etpoint Override (Set point Reset) 7 Low Press. Switch, one per compressor 8 Demand Limit or Current Limit (Site Selectable) 8 Oil Press. Switch, one per compressor 9 % Capacity Signal, one per comp. 9 Transition Fault, one per compressor 10 % Capacity Signal, one per comp. 10 Discharge Temp. Sensor, one per comp. 11 External Alarm 93

94 2014 McQuay International +1 (800) While utmost care is taken in ensuring that all details in the publication are correct at the time of going to press, we are constantly striving for improvement and therefore reserve the right to alter model specifications and equipment without notice. Details of specifications and equipment are also subject to change to suit local conditions and requirements and not all models are available in every market.