Air Cooled Single Screw Chiller Technical Manual Engineered for flexibility and performance. TM Models: MCS050.1-380.2F Cooling Capacity: 161kW-1370kW Refrigerant: R22/R407C MCS - F - 2011
Air Cooled Single Screw Chiller
Technical Manual
Engineered for flexibility and performance.TM
Models: MCS050.1-380.2FCooling Capacity: 161kW-1370kWRefrigerant: R22/R407C
MCS - F - 2011
“McQuay”isaregisteredtrademarkofMcQuayInternational.Allrightsreservedthroughouttheworld.
©2011McQuayInternational
“BulletinillustrationscoverthegeneralappearanceofMcQuayInternationalproductsatthetimeofpublicationandwereservetherighttomakechangesindesignandconstructionatanytimewithoutnotice.”
Note: Installation and maintenance are to be performed only by qualified personnel who are familiar with local codes andregulations,andexperiencedwiththistypeofequipment.
Caution: Sharpedgesandcoilsurfacesareapotentialinjuryhazard.Avoidcontactwiththem.
Warning: Movingmachineryandelectricalpowerhazard.Maycauseseverepersonalinjuryordeath.Disconnectandlockoffpowerbeforeservicingequipment.
Literature No.: TM-MCS(F)-1101A Supersedes: Nothing Part No.: M08039110001
Contents
Features................................................................................................................................ 2
Nomenclature....................................................................................................................... 6
Specifications ...................................................................................................................... 7
Accessories ....................................................................................................................... 23
Dimensions ........................................................................................................................ 24
Piping Diagram .................................................................................................................. 25
Wiring Diagram .................................................................................................................. 28
Capacity Tables ................................................................................................................. 34
Pressure Drop Through Evaporator ................................................................................ 42
Operation Limits ................................................................................................................ 43
Sound Level ....................................................................................................................... 45
Electric Characteristics..................................................................................................... 47
Foundation ......................................................................................................................... 48
Location of Water Circulating Pump ............................................................................... 52
Lifting .................................................................................................................................. 53
Installation .......................................................................................................................... 55
Safty Devices Setting ........................................................................................................ 60
Trouble and Action ............................................................................................................ 63
Guide Specifications ......................................................................................................... 64
AirCooledSingleScrewChiller
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1.1 Features
Easy to install and simple to maintain
Exact control and reliable operation
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 made of galvanized steel and 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.
Stepless modulation high efficiency and saving energy
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.
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.
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.
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.
Low noise and low vibration
1. Features1.1 Features
AirCooledSingleScrewChiller
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1.2 Intelligent Network Controller
Main functions
Main components (Inner controller)
1. Main controller MaicroTech Control type: PLC programming Software class: Class A Effective memory: Flash is 2M,and static is 256K Working condition: Temperature is between -20°C to 60°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 ≤ 90% Controlled distance: Effective controlled distance is 250m (AWG22 shielded twisted pair).3. IO Expansion board No programming, Set the special address is available.4. EVD2005. 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.
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.
Multi protection,ensure unit high efficient and stable running. Unit cooling load auto adjusted based on evaporator outlet water temp. Outlet water temp controlled by PID, precision ±0.2°C.Compressor On/Off controlled according to average wear.Both Chinese and English are available.Unit operation status/temp/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.
1.2 Intelligent Network Controller
AirCooledSingleScrewChiller
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1.3 Single Screw CompressorWith leading technology, McQuay’s semi-hermetic single screw compressor has such features as high-efficiency, saving energy, stability, quietness, few operation components and long durability.
Few operation components
Easy to maintain
Bearing durability
Low noise and low vibration
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
Axial force balance
Radial force balance
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.
The gate rotor is accessible through a removing cover plate, making an easy maintenance.
The bearing durability of the single screw compressor is up to 5 times or more, compared to twin-screw compressor.
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 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.
With opposing and equal suction pressure at both ends of the single screw compressor chambers, there’s no high thrust load as in the twin-screw design compressor.
Gate rotor on both sides of the screw chamber compressing simultaneously completely balanced radial loading on the rotating screw, thus eliminates bearing wear. This is a sharp contrast with twin-screw designs whose bearing size is limited, due to higher loads, screw friction and unbalance load
1.3 Single Screw Compressor
AirCooledSingleScrewChiller
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Features EDM51-701
4 UWA60AYM~520AYM / UWAP60BYM~480BYM
Compressionprinciples
SuctionGas 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.
CompressionVolume in each tooth chamber decreases as the screw rotates. Gas is continuously compressed until the groove leading edge passes the discharge port.
DischargeRelease 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.
AirCooledSingleScrewChiller
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MCS 235. 2 F ST 4 - F CA E
2.1 Nomenclature (R22, R407C)
2. Nomenclature
Export
Product Specifications
Power Supply
Refrigerant type: 2---R22 4---R407c
Unit Type: ST: standardLN: low noiseLC: low ambient cooling
Compressor Series
Compressor Qty.
Cooling Capacity: 235 USRT
McQuay Single screw chiller
AirCooledSingleScrewChiller
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Model MCS050.1 MCS060.1 MCS070.1 MCS080.1 MCS100.1
∗1 Normal cooling capacity
kW 170 205 240 280 360USRT 48 58 68 80 102kcal/h 146,200 176,300 206,400 240,800 309,600Btu/h 580,400 699,900 819,400 955,900 1,229,000
Casing / Color GalvanizedSteel/RAL7032Capacity Steps 0,25~100%Power Supply 380~400V/3~50Hz
CompressorType Semi-hermeticSingle-screwNo. × Model 1×3118 1×3120 1×3121 1×3122 1×3220Motor Input kW 53 66 75 89 102
Refrigerant Oil
Model LPT68Charge L 13 13 13 13 18
EvaporatorType High-efficiency Shell and TubeFlow Rate L/min. 487 588 688 803 1032Pressure Drop kPa 18 24 18 28 31
Condenser
Type CrossFinCoilRows × Stages 3×44 3×44 3×44 3×44 3×44Fit Pitch mm 1.8 1.8 1.8 1.8 1.8Face Area m2 9.57 9.57 12.07 12.07 16.09
Fan
Type Propeller(DirectDrive)Qty. 4 4 6 6 8
Air Flow Ratem3/min. 1,467 1,467 2,200 2,200 2,933
cfm 51,773 51,773 77,660 77,660 103,547Motor Input kW 8 8 12 12 16
RefrigerantType R22No. of Circuits 1 1 1 1 1Control ElectronicExpansionValve
Water Piping Connection inch 5Compressor Acoustic Insulation Material — Polyurethane
FoamingUnit Input kW 61 74 87 101 118
Unit Dimensions
D mm 2975 2975 3200 3200 4100W mm 2260 2260 2260 2260 2260H mm 2285 2285 2285 2285 2360
Weight kg 2350 2360 2870 2880 4050Operation Weight kg 2500 2510 3020 3030 4200
Standard Accessories Unit Operation Instructions, Conformity Certificate, Warranty Application Form, Spring Damper, WaterFlowSwitch.
Notes: ∗1. Coolingcapacityisbasedonthefollowingconditions: Enteringchilledwatertemp.12°C,Leavingchilledwatertemp.7°C,ambienttemp.35°CDB 2. The following safity devicesareequippedasstandard.
Highpressure(pressureswitch)Lowpressure(pressuresensor)CompressorthermalCondensationfanthermalHighdischargetemperatureonthecompressorPhasemonitorStar/DeltatransitionfailedLow-pressureratioHighoilpressuredropLowoilpressureFreezeprotectionLoadsteplessadjustTroublerecord
ConversionFormulaekcal/h=kW×860Btu/h=kW×3414
cfm=m³/min×35.3
3. Specifications3.1 MCS 050.1 FST ~ MCS 380.2 FST [R22 ]
AirCooledSingleScrewChiller
8
Model MCS120.1 MCS135.1 MCS150.1 MCS170.1 MCS185.1
∗1 Normal cooling capacity
kW 422 455 525 625 654USRT 120 129 149 178 186kcal/h 362,900 391,300 451,500 537,500 562,400Btu/h 1,440,700 1,553,400 1,792,400 2,133,800 2,232,800
Casing/Color PaintableGalvanizedSteelPlate/IvoryWhiteCapacity Steps 0,25~100%Power Supply 380~400V/3~50Hz
CompressorType Semi-hermeticSingle-screwNo. × Model 1×3221 1×4221 1×4222 1×4223 1×4223Motor Input kW 120 126 149 182 170
RefrigerantOil
Model LPT68Charge L 18 16 16 16 16
EvaporatorType High-efficiency Shell and TubeFlow Rate L/min. 1210 1304 1505 1792 1875Pressure Drop kPa 37 37 37 32 46
Condenser
Type CrossFinCoilRows × Stages 3×44 3×44 3×44 3×44 3×44Fit Pitch mm 1.8 1.8 1.8 1.8 1.8Face Area m2 16.09 16.09 20.12 20.12 24.14
Fan
Type Propeller(DirectDrive)No. 8 8 10 10 12
Air Flow Ratem3/min. 2,933 2,933 3,667 3,667 4,400
cfm 103,547 103,547 129,433 129,433 155,320Motor Input kW 16 16 20 20 24
RefrigerantType R22No. of Circuits 1 1 1 1 1Control ElectronicExpansionValve
Water Piping Connection inch 8Compressor Acoustic Insulation Material PolyurethaneFoaming
Unit Input kW 136 142 169 202 194
Unit Dimensions
D mm 4100 4100 5000 5000 5900W mm 2260 2260 2260 2260 2260H mm 2360 2360 2360 2360 2360
Weight kg 4290 4290 4795 4795 5370Operation Weight kg 4440 4440 4975 4975 5560
Standard Accessories Unit Operation Instructions, Conformity Certificate, Warranty Application Form, Spring Damper, WaterFlowSwitch.
Notes: ∗1. Coolingcapacityisbasedonthefollowingconditions: Enteringchilledwatertemp.12°C,Leavingchilledwatertemp.7°C,ambienttemp.35°CDB 2. The following safity devicesareequippedasstandard.
Highpressure(pressureswitch)Lowpressure(pressuresensor)CompressorthermalCondensationfanthermalHighdischargetemperatureonthecompressorPhasemonitorStar/DeltatransitionfailedLow-pressureratioHighoilpressuredropLowoilpressureFreezeprotectionLoadsteplessadjustTroublerecord
ConversionFormulaekcal/h=kW×860Btu/h=kW×3414
cfm=m³/min×35.3
AirCooledSingleScrewChiller
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Model MCS200.2 MCS220.2 MCS235.2 MCS260.2 MCS285.2
∗1 Normal cooling capacity
kW 720 782 840 950 1000USRT 205 222 239 270 284kcal/h 619,200 672,500 722,400 817,000 860,000Btu/h 2,458,100 2,669,800 2,867,800 3,243,300 3,414,000
Casing/Color PaintableGalvanizedSteelPlate/IvoryWhiteCapacity Steps 0,12.5~100%Power Supply 380~400V/3~50Hz
CompressorType Semi-hermeticSingle-screwNo. × Model 2×3220 1×32201×3221 2×3221 2×4221 1×42211×4222Motor Input kW 204 222 239 256 279
RefrigerantOil
Model LPT68Charge L 18×2 18×2 18×2 16×2 16×2
EvaporatorType High-efficiency Shell and TubeFlow Rate L/min. 2064 2242 2408 2723 2867Pressure Drop kPa 55 41 53 63 78
Condenser
Type CrossFinCoilRows × Stages 3×44 3×44 3×44 3×44 3×44Fit Pitch mm 1.8 1.8 1.8 1.8 1.8Face Area m2 28.16 30.18 32.19 32.19 34.20
Fan
Type Propeller(DirectDrive)Qty. 14 15 16 16 17
Air Flow Ratem3/min. 5,133 5,500 5,867 5,867 6,233
cfm 181,207 194,150 207,093 207,093 220,037Motor Input kW 28 30 32 32 34
RefrigerantType R22No. of Circuits 2 2 2 2 2Control ElectronicExpansionValve
Water Piping Connection inch 8Compressor Acoustic Insulation Material PolyurethaneFoaming
Unit Input kW 232 252 271 288 313
Unit Dimensions
D mm 7300 8200 8200 8200 9100W mm 2260 2260 2260 2260 2260H mm 2360 2360 2360 2360 2360
Weight kg 7085 7665 8160 8200 8620Operation Weight kg 7275 7855 8350 8400 8820
Standard Accessories Unit Operation Instructions, Conformity Certificate, Warranty Application Form, Spring Damper, WaterFlowSwitch.
Notes: ∗1. Coolingcapacityisbasedonthefollowingconditions: Enteringchilledwatertemp.12°C,Leavingchilledwatertemp.7°C,ambienttemp.35°CDB 2. The following safity devicesareequippedasstandard.
Highpressure(pressureswitch)Lowpressure(pressuresensor)CompressorthermalCondensationfanthermalHighdischargetemperatureonthecompressorPhasemonitorStar/DeltatransitionfailedLow-pressureratioHighoilpressuredropLowoilpressureFreezeprotectionLoadsteplessadjustTroublerecord
ConversionFormulaekcal/h=kW×860Btu/h=kW×3414
cfm=m³/min×35.3
AirCooledSingleScrewChiller
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Model MCS310.2 MCS330.2 MCS350.2 MCS380.2
∗1 Normal cooling capacity
kW 1070 1163 1300 1370USRT 304 331 370 390kcal/h 920,200 1,000,200 1,118,000 1,178,200Btu/h 3,653,000 3,970,500 4,438,200 4,677,200
Casing/Color PaintableGalvanizedSteelPlate/IvoryWhiteCapacity Steps 0,12.5~100%Power Supply 380~400V/3~50Hz
CompressorType Semi-hermeticSingle-screwNo. × Model 2×4222 1×42221×4223 2×4223 2×4223Motor Input kW 309 337 366 359
Refrigerant Oil
Model LPT68Charge L 16×2 16×2 16×2 16×2
EvaporatorType High-efficiency Shell and TubeFlow Rate L/min. 3067 3334 3727 3927Pressure Drop kPa 74 87 95 97
Condenser
Type CrossFincoilRows × Stages 3×44 3×44 3×44 4×44Fit Pitch mm 1.8 1.8 1.8 1.8Face Area m2 36.21 38.22 40.23 40.23
Fan
Type Propeller(DirectDrive)Qty. 18 19 20 20
Air Flow Ratem3/min. 6,600 6,967 7,333 7,333
cfm 232,980 245,923 258,867 258,867Motor Input kW 36 38 40 40
RefrigerantType R22No. of Circuits 2 2 2 2Control ElectronicExpansionValve
Water Piping Connection inch 8Compressor Acoustic Insulation Material PolyurethaneFoaming
Unit Input kW 345 375 406 399
Unit Dimensions
D mm 9100 10000 10000 10000W mm 2260 2260 2260 2260H mm 2360 2360 2360 2360
Weight kg 8660 9405 9460 9780Operation Weight kg 8860 9605 9660 10010
Standard Accessories Unit Operation Instructions, Conformity Certificate, Warranty Application Form, Spring Damper, WaterFlowSwitch.
Notes: ∗1. Coolingcapacityisbasedonthefollowingconditions: Enteringchilledwatertemp.12°C,Leavingchilledwatertemp.7°C,ambienttemp.35°CDB 2. The following safity devicesareequippedasstandard.
Highpressure(pressureswitch)Lowpressure(pressuresensor)CompressorthermalCondensationfanthermalHighdischargetemperatureonthecompressorPhasemonitorStar/DeltatransitionfailedLow-pressureratioHighoilpressuredropLowoilpressureFreezeprotectionLoadsteplessadjustTroublerecord
ConversionFormulaekcal/h=kW×860Btu/h=kW×3414
cfm=m³/min×35.3
AirCooledSingleScrewChiller
11
Model MCS050.1 MCS060.1 MCS070.1 MCS080.1 MCS100.1
∗1 Normal cooling capacity
kW 164 198 232 270 347USRT 47 56 66 77 99kcal/h 141,100 170,100 199,200 232,400 298,800Btu/h 560,100 675,400 790,700 922,500 1,186,000
Casing / Color PaintableGalvanizedSteelPlate/IvoryWhiteCapacity Steps 0,25~100%Power Supply 380~400V/3~50Hz
CompressorType Semi-hermeticSingle-screwNo. × Model 1×3118 1×3120 1×3121 1×3122 1×3220Motor Input kW 53 66 75 89 108
RefrigerantOil
Model RL68HCharge L 13 13 13 13 18
EvaporatorType High-efficiency Shell and Tube Flow Rate L/min. 470 567 664 775 996Pressure Drop kPa 18 24 18 28 31
Condenser
Type CrossFinCoilRows × Stages 3×44 3×44 3×44 3×44 3×44Fit Pitch mm 1.8 1.8 1.8 1.8 1.8Face Area m2 9.57 9.57 12.07 12.07 16.09
Fan
Type Propeller(DirectDrive)Qty. 4 4 6 6 8
Air Flow Ratem3/min. 1,467 1,467 2,200 2,200 2,933
cfm 51,773 51,773 77,660 77,660 103,547Motor Input kW 8 8 12 12 16
RefrigerantType R407CNo. of Circuits 1 1 1 1 1Control ElectronicExpansionValve
Water Piping Connection inch 5Compressor Acoustic Insulation Material — Polyurethane
FoamingUnit Input kW 61 74 87 101 124
Unit Dimensions
D mm 2975 2975 3200 3200 4100W mm 2260 2260 2260 2260 2260H mm 2285 2285 2285 2285 2360
Weight kg 2350 2360 2870 2880 4050Operation Weight kg 2500 2510 3020 3030 4200
Standard Accessories Unit Operation Instructions, Conformity Certificate, Warranty Application Form, Spring Damper, WaterFlowSwitch.
Notes: ∗1. Coolingcapacityisbasedonthefollowingconditions: Enteringchilledwatertemp.12°C,Leavingchilledwatertemp.7°C,ambienttemp.35°CDB 2. The following safity devicesareequippedasstandard.
Highpressure(pressureswitch)Lowpressure(pressuresensor)CompressorthermalCondensationfanthermalHighdischargetemperatureonthecompressorPhasemonitorStar/DeltatransitionfailedLow-pressureratioHighoilpressuredropLowoilpressureFreezeprotectionLoadsteplessadjustTroublerecord
ConversionFormulaekcal/h=kW×860Btu/h=kW×3414
cfm=m³/min×35.3
3.2 MCS050.1FST~MCS350.2FST[R407C]
AirCooledSingleScrewChiller
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Model MCS120.1 MCS135.1 MCS150.1 MCS170.1 MCS185.1
∗1 Normal cooling capacity
kW 407 439 507 603 631USRT 116 125 144 172 179kcal/h 350,200 377,600 435,700 518,700 542,800Btu/h 1,390,300 1,499,000 1,729,600 2,059,100 2,154,600
Casing/Color PaintableGalvanizedSteelPlate/IvoryWhiteCapacity Steps 0,25~100%Power Supply 380~400V/3~50Hz
CompressorType Semi-hermeticSingle-screwNo. × Model 1×3221 1×4221 1×4222 1×4223 1×4223Motor Input kW 127 133 157 192 180
Refrigerant Oil
Model RL68HCharge L 18 16 16 16 16
EvaporatorType High-efficiency Shell and TubeFlow Rate L/min. 1167 1259 1452 1729 1809Pressure Drop kPa 37 37 37 32 46
Condenser
Type CrossFinCoilRows × Stages 3×44 3×44 3×44 3×44 3×44Fit Pitch mm 1.8 1.8 1.8 1.8 1.8Face Area m2 16.09 16.09 20.12 20.12 24.14
Fan
Type Propeller(DirectDrive)Qty. 8 8 10 10 12
Air Flow Ratem3/min. 2,933 2,933 3,667 3,667 4,400
cfm 103,547 103,547 129,433 129,433 155,320Motor Input kW 16 16 20 20 24
RefrigerantType R407CNo. of Circuits 1 1 1 1 1Control ElectronicExpansionValve
Water Piping Connection inch 8Compressor Acoustic Insulation Material PolyurethaneFoaming
Unit Input kW 143 149 177 212 204
Unit Dimensions
D mm 4100 4100 5000 5000 5900W mm 2260 2260 2260 2260 2260H mm 2360 2360 2360 2360 2360
Weight kg 4290 4290 4795 4795 5370Operation Weight kg 4440 4440 4975 4975 5560
Standard Accessories Unit Operation Instructions, Conformity Certificate, Warranty Application Form, Spring Damper, WaterFlowSwitch.
Notes: ∗1. Coolingcapacityisbasedonthefollowingconditions: Enteringchilledwatertemp.12°C,Leavingchilledwatertemp.7°C,ambienttemp.35°CDB 2. The following safity devicesareequippedasstandard.
Highpressure(pressureswitch)Lowpressure(pressuresensor)CompressorthermalCondensationfanthermalHighdischargetemperatureonthecompressorPhasemonitorStar/DeltatransitionfailedLow-pressureratioHighoilpressuredropLowoilpressureFreezeprotectionLoadsteplessadjustTroublerecord
ConversionFormulaekcal/h=kW×860Btu/h=kW×3414
cfm=m³/min×35.3
AirCooledSingleScrewChiller
13
Model MCS200.2 MCS220.2 MCS235.2 MCS260.2 MCS285.2
∗1 Normal cooling capacity
kW 695 755 811 917 965USRT 198 215 231 261 274kcal/h 597,500 649,000 697,100 788,400 829,900Btu/h 2,372,000 2,576,300 2,767,400 3,129,800 3,294,500
Casing/Color PaintableGalvanizedSteelPlate/IvoryWhiteCapacity Steps 0,12.5~100%Power Supply 380~400V/3~50Hz
CompressorType Semi-hermeticSingle-screwNo. × Model 2×3220 1×32201×3221 2×3221 2×4221 1×42211×4222Motor Input kW 216 235 253 270 295
RefrigerantOil
Model RL68HCharge L 18×2 18×2 18×2 16×2 16×2
EvaporatorType High-efficiency Shell and TubeFlow Rate L/min. 1992 2163 2324 2628 2766Pressure Drop kPa 55 41 53 63 78
Condenser
Type CrossFinCoilRows × Stages 3×44 3×44 3×44 3×44 3×44Fit Pitch mm 1.8 1.8 1.8 1.8 1.8Face Area m2 28.16 30.18 32.19 32.19 34.20
Fan
Type Propeller(DirectDrive)Qty. 14 15 16 16 17
Air Flow Ratem3/min. 5,133 5,500 5,867 5,867 6,233
cfm 181,207 194,150 207,093 207,093 220,037Motor Input kW 28 30 32 32 34
RefrigerantType R407CNo. of Circuits 2 2 2 2 2Control ElectronicExpansionValve
Water Piping Connection inch 8Compressor Acoustic Insulation Material PolyurethaneFoaming
Unit Input kW 244 265 285 302 329
Unit Dimensions
D mm 7300 8200 8200 8200 9100W mm 2260 2260 2260 2260 2260H mm 2360 2360 2360 2360 2360
Weight kg 7085 7665 8160 8200 8620Operation Weight kg 7275 7855 8350 8400 8820
Standard Accessories Unit Operation Instructions, Conformity Certificate, Warranty Application Form, Spring Damper, WaterFlowSwitch.
Notes: ∗1. Coolingcapacityisbasedonthefollowingconditions: Enteringchilledwatertemp.12°C,Leavingchilledwatertemp.7°C,ambienttemp.35°CDB 2. The following safity devicesareequippedasstandard.
Highpressure(pressureswitch)Lowpressure(pressuresensor)CompressorthermalCondensationfanthermalHighdischargetemperatureonthecompressorPhasemonitorStar/DeltatransitionfailedLow-pressureratioHighoilpressuredropLowoilpressureFreezeprotectionLoadsteplessadjustTroublerecord
ConversionFormulaekcal/h=kW×860Btu/h=kW×3414
cfm=m³/min×35.3
AirCooledSingleScrewChiller
14
Model MCS310.2 MCS330.2 MCS350.2
∗1 Normal cooling capacity
kW 1033 1122 1255USRT 294 319 357kcal/h 888,000 965,200 1,078,900Btu/h 3,525,100 3,831,500 4,282,900
Casing/Color PaintableGalvanizedSteelPlate/IvoryWhiteCapacity Steps 0,12.5~100%Power Supply 380~400V/3~50Hz
CompressorType Semi-hermeticSingle-screwNo. × Model 2×4222 1×42221×4223 2×4223Motor Input kW 326 356 386
RefrigerantOil
Model RL68HCharge L 16×2 16×2 16×2
EvaporatorType High-efficiency Shell and TubeFlow Rate L/min. 2960 3217 3596Pressure Drop kPa 74 87 95
Condenser
Type CrossFincoilRows × Stages 3×44 3×44 3×44Fit Pitch mm 1.8 1.8 1.8Face Area m2 36.21 38.22 40.23
Fan
Type Propeller(DirectDrive)Qty. 18 19 20
Air Flow Rate m3/min. 6,600 6,967 7,333cfm 232,980 245,923 258,867
Motor Input kW 36 38 40
RefrigerantType R407CNo. of Circuits 2 2 2Control ElectronicExpansionValve
Water Piping Connection inch 8Compressor Acoustic Insulation Material PolyurethaneFoaming
Unit Input kW 362 394 426
Unit Dimensions
D mm 9100 10000 10000W mm 2260 2260 2260H mm 2360 2360 2360
Weight kg 8660 9405 9460Operation Weight kg 8860 9605 9660
Standard Accessories Unit Operation Instructions, Conformity Certificate, Warranty Application Form, Spring Damper, WaterFlowSwitch.
Notes: ∗1. Coolingcapacityisbasedonthefollowingconditions: Enteringchilledwatertemp.12°C,Leavingchilledwatertemp.7°C,ambienttemp.35°CDB 2. The following safity devicesareequippedasstandard.
Highpressure(pressureswitch)Lowpressure(pressuresensor)CompressorthermalCondensationfanthermalHighdischargetemperatureonthecompressorPhasemonitorStar/DeltatransitionfailedLow-pressureratioHighoilpressuredropLowoilpressureFreezeprotectionLoadsteplessadjustTroublerecord
ConversionFormulaekcal/h=kW×860Btu/h=kW×3414
cfm=m³/min×35.3
AirCooledSingleScrewChiller
15
Model MCS050.1 MCS060.1 MCS070.1 MCS080.1 MCS100.1
∗1 Cooling Capacity
kW 167 201 235 274 353USRT 47 57 67 78 100kcal/h 140,000 170,000 200,000 240,000 300,000Btu/h 570,400 690,000 800,000 940,000 1,200,000
Casing / Color GalvanizedSteel/RAL7032Capacity Steps 0,25~100%Power Supply 380~400V/3~50Hz
CompressorType Semi-hermeticSingle-screwNo. × Model 1×3118 1×3120 1×3121 1×3122 1×3220Motor Input kW 53 66 75 89 102
RefrigerantOil
Model LPT68Charge L 13 13 13 13 18
EvaporatorType High-efficiency Shell and TubeFlow Rate L/min. 483 583 667 783 1017Pressure Drop kPa 18 24 18 28 31
Condenser
Type CrossFinCoilRows × Stages 4×44 4×44 4×44 4×44 4×44Fit Pitch mm 1.8 1.8 1.8 1.8 1.8Face Area m2 9.57 9.57 12.07 12.07 16.09
Fan
Type Propeller(DirectDrive)Qty. 4 4 6 6 8
Air Flow Ratem3/min. 1,200 1,200 1,800 1,800 2,400
cfm 42,360 42,360 63,540 63,540 84,720Motor Input kW 7.2 7.2 0.8 10.8 14.4
RefrigerantType R22No. of Circuits 1 1 1 1 1Control ElectronicExpansionValve
Water Piping Connection inch 5Compressor Acoustic Insulation Material — Polyurethane
FoamingUnit Input kW 60.2 73.2 85.8 99.8 116.4
Unit Dimensions
D mm 2975 2975 3200 3200 4100W mm 2260 2260 2260 2260 2260H mm 2285 2285 2285 2285 2360
Weight kg 2410 2420 2960 2975 4170Operation Weight kg 2560 2570 3110 3125 4320
Standard Accessories Unit Operation Instructions, Conformity Certificate, Warranty Application Form, Spring Damper, WaterFlowSwitch.
Notes: ∗1. Coolingcapacityisbasedonthefollowingconditions: Enteringchilledwatertemp.12°C,Leavingchilledwatertemp.7°C,ambienttemp.35°CDB 2. The following safity devicesareequippedasstandard.
Highpressure(pressureswitch)Lowpressure(pressuresensor)CompressorthermalCondensationfanthermalHighdischargetemperatureonthecompressorPhasemonitorStar/DeltatransitionfailedLow-pressureratioHighoilpressuredropLowoilpressureFreezeprotectionLoadsteplessadjustTroublerecord
ConversionFormulaekcal/h=kW×860Btu/h=kW×3414
cfm=m³/min×35.3
3.3 MCS050.1FLN~MCS350.2FLN[R22]
AirCooledSingleScrewChiller
16
Model MCS120.1 MCS135.1 MCS150.1 MCS170.1 MCS185.1
∗1 Cooling Capacity
kW 414 446 515 613 641USRT 118 127 146 174 182kcal/h 360,000 380,000 440,000 530,000 550,000Btu/h 1,410,000 1,520,000 1,760,000 2,09,000 2,190,000
Casing/Color PaintableGalvanizedSteelPlate/IvoryWhiteCapacity Steps 0,25~100%Power Supply 380~400V/3~50Hz
CompressorType Semi-hermeticSingle-screwNo. × Model 1×3221 1×4221 1×4222 1×4223 1×4223Motor Input kW 120 126 149 182 170
RefrigerantOil
Model LPT68Charge L 18 16 16 16 16
EvaporatorType High-efficiency Shell and TubeFlow Rate L/min. 1183 1283 1467 1750 1833Pressure Drop kPa 37 37 37 32 46
Condenser
Type CrossFinCoilRows × Stages 4×44 4×44 3×44 4×44 4×44Fit Pitch mm 1.8 1.8 1.8 1.8 1.8Face Area m2 16.09 16.09 20.12 20.12 24.14
Fan
Type Propeller(DirectDrive)Qty. 8 8 10 10 12
Air Flow Ratem3/min. 2,400 2,400 3,000 3,000 3,600
cfm 84,720 84,720 105,900 105,900 127,080Motor Input kW 14.4 14.4 18 18 21.6
RefrigerantType R22No. of Circuits 1 1 1 1 1Control ElectronicExpansionValve
Water Piping Connection inch 8Compressor Acoustic Insulation Material PolyurethaneFoaming
Unit Input kW 134.4 140.4 167.0 200.0 191.6
Unit Dimensions
D mm 4100 4100 5000 5000 5900W mm 2260 2260 2260 2260 2260H mm 2360 2360 2360 2360 2360
Weight kg 4420 4420 4950 4950 5550Operation Weight kg 4570 4570 5130 5130 5740
Standard Accessories Unit Operation Instructions, Conformity Certificate, Warranty Application Form, Spring Damper, WaterFlowSwitch.
Notes: ∗1. Coolingcapacityisbasedonthefollowingconditions: Enteringchilledwatertemp.12°C,Leavingchilledwatertemp.7°C,ambienttemp.35°CDB 2. The following safity devicesareequippedasstandard.
Highpressure(pressureswitch)Lowpressure(pressuresensor)CompressorthermalCondensationfanthermalHighdischargetemperatureonthecompressorPhasemonitorStar/DeltatransitionfailedLow-pressureratioHighoilpressuredropLowoilpressureFreezeprotectionLoadsteplessadjustTroublerecord
ConversionFormulaekcal/h=kW×860Btu/h=kW×3414
cfm=m³/min×35.3
AirCooledSingleScrewChiller
17
Model MCS200.2 MCS220.2 MCS235.2 MCS260.2 MCS285.2
∗1 Cooling Capacity
kW 706 766 823 931 980USRT 201 218 234 265 279kcal/h 610,000 660,000 710,000 800,000 840,000Btu/h 2,410,000 2,610,000 2,850,000 3,180,000 3,340,000
Casing/Color PaintableGalvanizedSteelPlate/IvoryWhiteCapacity Steps 0,12.5~100%Power Supply 380~400V/3~50Hz
CompressorType Semi-hermeticSingle-screwNo. × Model 2×3220 1×32201×3221 2×3221 2×4221 1×42211×4222Motor Input kW 204 222 239 256 279
RefrigerantOil
Model LPT68Charge L 18×2 18×2 18×2 16×2 16×2
EvaporatorType High-efficiency Shell and TubeFlow Rate L/min. 2017 2200 2367 2667 2817Pressure Drop kPa 55 41 53 63 78
Condenser
Type CrossFinCoilRows × Stages 4×44 4×44 4×44 4×44 4×44Fit Pitch mm 1.8 1.8 1.8 1.8 1.8Face Area m2 28.16 30.18 32.19 32.19 34.20
Fan
Type Propeller(DirectDrive)Qty. 14 15 16 16 17
Air Flow Ratem3/min. 4,200 4,500 4,800 4,800 5,100
cfm 148,260 158,850 158,850 158,850 180,030Motor Input kW 25.2 27 28.8 28.8 30.6
RefrigerantType R22No. of Circuits 2 2 2 2 2Control ElectronicExpansionValve
Water Piping Connection inch 8Compressor Acoustic Insulation Material PolyurethaneFoaming
Unit Input kW 229.2 249.0 267.8 284.8 309.6
Unit Dimensions
D mm 7300 8200 8200 8200 9100W mm 2260 2260 2260 2260 2260H mm 2360 2360 2360 2360 2360
Weight kg 7300 7910 8400 8470 8890Operation Weight kg 7490 8100 8590 8670 9090
Standard Accessories Unit Operation Instructions, Conformity Certificate, Warranty Application Form, Spring Damper, WaterFlowSwitch.
Notes: ∗1. Coolingcapacityisbasedonthefollowingconditions: Enteringchilledwatertemp.12°C,Leavingchilledwatertemp.7°C,ambienttemp.35°CDB 2. The following safity devicesareequippedasstandard.
Highpressure(pressureswitch)Lowpressure(pressuresensor)CompressorthermalCondensationfanthermalHighdischargetemperatureonthecompressorPhasemonitorStar/DeltatransitionfailedLow-pressureratioHighoilpressuredropLowoilpressureFreezeprotectionLoadsteplessadjustTroublerecord
ConversionFormulaekcal/h=kW×860Btu/h=kW×3414
cfm=m³/min×35.3
AirCooledSingleScrewChiller
18
Model MCS310.2 MCS330.2 MCS350.2
∗1 Cooling Capacity
kW 1049 1140 1274USRT 298 324 362kcal/h 900,000 980,200 1,100,000Btu/h 3,580,000 3,890,000 4,350,000
Casing/Color PaintableGalvanizedSteelPlate/IvoryWhiteCapacity Steps 0,12.5~100%Power Supply 380~400V/3~50Hz
CompressorType Semi-hermeticSingle-screwNo. × Model 2×4222 1×42221×4223 2×4223Motor Input kW 309 337 366
Refrigerant OilModel LPT68Charge L 16×2 16×2 16×2
EvaporatorType High-efficiency Shell and TubeFlow Rate L/min. 3000 3267 3650Pressure Drop kPa 74 87 95
Condenser
Type CrossFincoilRows × Stages 4×44 4×44 4×44Fit Pitch mm 1.8 1.8 1.8Face Area m2 36.21 38.22 40.23
Fan
Type Propeller(DirectDrive)Qty. 18 19 20
Air Flow Ratem3/min. 5,400 5,700 6,000
cfm 190,620 201,210 211,800Motor Input kW 32.4 34.2 36
RefrigerantType R22No. of Circuits 2 2 2Control ElectronicExpansionValve
Water Piping Connection inch 8Compressor Acoustic Insulation Material PolyurethaneFoaming
Unit Input kW 341.4 371.2 402.0
Unit Dimensions
D mm 9100 10000 10000W mm 2260 2260 2260H mm 2360 2360 2360
Weight kg 8935 9710 9760Operation Weight kg 9135 9910 9960
Standard Accessories Unit Operation Instructions, Conformity Certificate, Warranty Application Form, Spring Damper,WaterFlowSwitch.
Notes: ∗1. Coolingcapacityisbasedonthefollowingconditions: Enteringchilledwatertemp.12°C,Leavingchilledwatertemp.7°C,ambienttemp.35°CDB 2. The following safity devicesareequippedasstandard.
Highpressure(pressureswitch)Lowpressure(pressuresensor)CompressorthermalCondensationfanthermalHighdischargetemperatureonthecompressorPhasemonitorStar/DeltatransitionfailedLow-pressureratioHighoilpressuredropLowoilpressureFreezeprotectionLoadsteplessadjustTroublerecord
ConversionFormulaekcal/h=kW×860Btu/h=kW×3414
cfm=m³/min×35.3
AirCooledSingleScrewChiller
19
Model MCS050.1 MCS060.1 MCS070.1 MCS080.1 MCS100.1
∗1 Cooling Capacity
kW 161 194 227 265 340USRT 46 55 65 75 97kcal/h 140,000 170,100 200,000 230,000 300,000Btu/h 550,100 660,000 770,000 900,000 1,160,000
Casing / Color PaintableGalvanizedSteelPlate/IvoryWhiteCapacity Steps 0,25~100%Power Supply 380~400V/3~50Hz
CompressorType Semi-hermeticSingle-screwNo. × Model 1×3118 1×3120 1×3121 1×3122 1×3220Motor Input kW 53 66 75 89 108
RefrigerantOil
Model RL68HCharge L 13 13 13 13 18
EvaporatorType High-efficiency Shell and TubeFlow Rate L/min. 467 550 650 767 983Pressure Drop kPa 18 24 18 28 31
Condenser
Type CrossFinCoilRows × Stages 4×44 4×44 4×44 4×44 4×44Fit Pitch mm 1.8 1.8 1.8 1.8 1.8Face Area m2 9.57 9.57 12.07 12.07 16.09
Fan
Type Propeller(DirectDrive)Qty. 4 4 6 6 8
Air Flow Ratem3/min. 1,200 1,200 1,800 1,800 2,400
cfm 42,360 42,360 63,540 63,540 84,720Motor Input kW 7.2 7.2 10.8 10.8 14.4
RefrigerantType R407CNo. of Circuits 1 1 1 1 1Control ElectronicExpansionValve
Water Piping Connection inch 5Compressor Acoustic Insulation Material — Polyurethane
FoamingUnit Input kW 60.2 73.2 85.8 99.8 122.4
Unit Dimensions
D mm 2975 2975 3200 3200 4100W mm 2260 2260 2260 2260 2260H mm 2285 2285 2285 2285 2360
Weight kg 2410 2420 2960 2975 4170Operation Weight kg 2560 2570 3110 3125 4320
Standard Accessories Unit Operation Instructions, Conformity Certificate, Warranty Application Form, Spring Damper, WaterFlowSwitch.
Notes: ∗1. Coolingcapacityisbasedonthefollowingconditions: Enteringchilledwatertemp.12°C,Leavingchilledwatertemp.7°C,ambienttemp.35°CDB 2. The following safity devicesareequippedasstandard.
Highpressure(pressureswitch)Lowpressure(pressuresensor)CompressorthermalCondensationfanthermalHighdischargetemperatureonthecompressorPhasemonitorStar/DeltatransitionfailedLow-pressureratioHighoilpressuredropLowoilpressureFreezeprotectionLoadsteplessadjustTroublerecord
ConversionFormulaekcal/h=kW×860Btu/h=kW×3414
cfm=m³/min×35.3
3.4 MCS050.1FLN~MCS350.2FLN[R407C]
AirCooledSingleScrewChiller
20
Model MCS120.1 MCS135.1 MCS150.1 MCS170.1 MCS185.1
∗1 Normal cooling capacity
kW 399 430 496 591 618USRT 114 122 141 168 176kcal/h 340,000 370,000 430,000 510,000 530,000Btu/h 1,360,000 1,470,000 1,690,000 2,020,000 2,110,000
Casing/Color PaintableGalvanizedSteelPlate/IvoryWhiteCapacity Steps 0,25~100%Power Supply 380~400V/3~50Hz
CompressorType Semi-hermeticSingle-screwNo. × Model 1×3221 1×4221 1×4222 1×4223 1×4223Motor Input kW 127 133 157 192 180
Refrigerant Oil
Model RL68HCharge L 18 16 16 16 16
EvaporatorType High-efficiency Shell and TubeFlow Rate L/min. 1150 1233 1417 1700 1767Pressure Drop kPa 37 37 37 32 46
Condenser
Type CrossFinCoilRows × Stages 4×44 4×44 4×44 4×44 4×44Fit Pitch mm 1.8 1.8 1.8 1.8 1.8Face Area m2 16.09 16.09 20.12 20.12 24.14
Fan
Type Propeller(DirectDrive)Qty. 8 8 10 10 12
Air Flow Ratem3/min. 2,400 2,400 3,667 3,000 3,600
cfm 84,720 84,720 105,900 105,900 127,080Motor Input kW 14.4 14.4 18.8 18.8 21.6
RefrigerantType R407CNo. of Circuits 1 1 1 1 1Control ElectronicExpansionValve
Water Piping Connection inch 8Compressor Acoustic Insulation Material PolyurethaneFoaming
Unit Input kW 141.4 147.4 175.0 210.0 201.6
Unit Dimensions
D mm 4100 4100 5000 5000 5900W mm 2260 2260 2260 2260 2260H mm 2360 2360 2360 2360 2360
Weight kg 4420 4420 4950 4950 5550Operation Weight kg 4570 4570 5130 5130 5740
Standard Accessories Unit Operation Instructions, Conformity Certificate, Warranty Application Form, Spring Damper, WaterFlowSwitch.
Notes: ∗1. Coolingcapacityisbasedonthefollowingconditions: Enteringchilledwatertemp.12°C,Leavingchilledwatertemp.7°C,ambienttemp.35°CDB 2. The following safity devicesareequippedasstandard.
Highpressure(pressureswitch)Lowpressure(pressuresensor)CompressorthermalCondensationfanthermalHighdischargetemperatureonthecompressorPhasemonitorStar/DeltatransitionfailedLow-pressureratioHighoilpressuredropLowoilpressureFreezeprotectionLoadsteplessadjustTroublerecord
ConversionFormulaekcal/h=kW×860Btu/h=kW×3414
cfm=m³/min×35.3
AirCooledSingleScrewChiller
21
Model MCS200.2 MCS220.2 MCS235.2 MCS260.2 MCS285.2
∗1 Normal cooling capacity
kW 681 740 794 898 946USRT 194 210 226 256 269kcal/h 590,000 640,000 680,000 770,000 810,000Btu/h 2,320,000 2,520,000 2,710,000 3,070,000 3,230,000
Casing/Color PaintableGalvanizedSteelPlate/IvoryWhiteCapacity Steps 0,12.5~100%Power Supply 380~400V/3~50Hz
CompressorType Semi-hermeticSingle-screwNo. × Model 2×3220 1×32201×3221 2×3221 2×4221 1×42211×4222Motor Input kW 216 235 253 270 295
RefrigerantOil
Model RL68HCharge L 18×2 18×2 18×2 16×2 16×2
EvaporatorType High-efficiency Shell and TubeFlow Rate L/min. 1950 2117 2283 2583 2717Pressure Drop kPa 55 41 53 63 78
Condenser
Type CrossFinCoilRows × Stages 4×44 4×44 4×44 4×44 4×44Fit Pitch mm 1.8 1.8 1.8 1.8 1.8Face Area m2 28.16 30.18 32.19 32.19 34.20
Fan
Type Propeller(DirectDrive)Qty. 14 15 16 16 17
Air Flow Ratem3/min. 4,200 4,500 4,800 4,800 5,100
cfm 148,260 148,850 158,850 158,850 180,030Motor Input kW 25.2 27 28.8 28.8 30.6
RefrigerantType R407CNo. of Circuits 2 2 2 2 2Control ElectronicExpansionValve
Water Piping Connection inch 8Compressor Acoustic Insulation Material PolyurethaneFoaming
Unit Input kW 241.2 262.0 281.8 298.8 325.6
Unit Dimensions
D mm 7300 8200 8200 8200 9100W mm 2260 2260 2260 2260 2260H mm 2360 2360 2360 2360 2360
Weight kg 7300 7910 8400 8470 8890Operation Weight kg 7490 8100 8590 8670 9090
Standard Accessories Unit Operation Instructions, Conformity Certificate, Warranty Application Form, Spring Damper, WaterFlowSwitch.
Notes: ∗1. Coolingcapacityisbasedonthefollowingconditions: Enteringchilledwatertemp.12°C,Leavingchilledwatertemp.7°C,ambienttemp.35°CDB 2. The following safity devicesareequippedasstandard.
Highpressure(pressureswitch)Lowpressure(pressuresensor)CompressorthermalCondensationfanthermalHighdischargetemperatureonthecompressorPhasemonitorStar/DeltatransitionfailedLow-pressureratioHighoilpressuredropLowoilpressureFreezeprotectionLoadsteplessadjustTroublerecord
ConversionFormulaekcal/h=kW×860Btu/h=kW×3414
cfm=m³/min×35.3
AirCooledSingleScrewChiller
22
Model MCS310.2 MCS330.2 MCS350.2
∗1 Normal cooling capacity
kW 1012 1100 1229USRT 288 313 350kcal/h 870,000 950,000 1,060,000Btu/h 3,450,000 3,750,000 4,190,000
Casing/Color PaintableGalvanizedSteelPlate/IvoryWhiteCapacity Steps 0,12.5~100%Power Supply 380~400V/3~50Hz
CompressorType Semi-hermeticSingle-screwNo. × Model 2×4222 1×42221×4223 2×4223Motor Input kW 326 356 386
RefrigerantOil
Model RL68HCharge L 16×2 16×2 16×2
EvaporatorType High-efficiency Shell and TubeFlow Rate L/min. 2900 3150 3517Pressure Drop kPa 74 87 95
Condenser
Type CrossFincoilRows × Stages 4×44 4×44 4×44Fit Pitch mm 1.8 1.8 1.8Face Area m2 36.21 38.22 40.23
Fan
Type Propeller(DirectDrive)Qty. 18×TFE800-95 19×TFE800-95 20×TFE800-95
Air Flow Rate m3/min. 5,400 5,700 6,000cfm 190,620 201,210 211,800
Motor Input kW 32.4 34.2 36
RefrigerantType R407CNo. of Circuits 2 2 2Control ElectronicExpansionValve
Water Piping Connection inch 8Compressor Acoustic Insulation Material PolyurethaneFoaming
Unit Input kW 358.4 390.2 422.0
Unit Dimensions
D mm 9100 10000 10000W mm 2260 2260 2260H mm 2360 2360 2360
Weight kg 8935 9710 9760Operation Weight kg 9135 9910 9660
Standard Accessories Unit Operation Instructions, Conformity Certificate, Warranty Application Form, Spring Damper, WaterFlowSwitch.
Notes: ∗1. Coolingcapacityisbasedonthefollowingconditions: Enteringchilledwatertemp.12°C,Leavingchilledwatertemp.7°C,ambienttemp.35°CDB 2. The following safity devicesareequippedasstandard.
Highpressure(pressureswitch)Lowpressure(pressuresensor)CompressorthermalCondensationfanthermalHighdischargetemperatureonthecompressorPhasemonitorStar/DeltatransitionfailedLow-pressureratioHighoilpressuredropLowoilpressureFreezeprotectionLoadsteplessadjustTroublerecord
ConversionFormulaekcal/h=kW×860Btu/h=kW×3414
cfm=m³/min×35.3
AirCooledSingleScrewChiller
23
Star Delta Compressors starter–Forlowinrushcurrentandreducedstartingtorque.Double set-point–Dualleavingwatertemperatureset-points.Compressor thermal overload relays–Safetydevicesagainstcompressormotoroverloadinginadditiontothenormalprotectionrelatedtotheelectricalwindings.Fan thermal overload relays–Safetydevicesagainstfanmotoroverloadinginadditiontothenormalprotectionrelatedtotheelectricalwindings.Phase protector–Thephasemonitorcontrolsthephasessequenceiscorrectandcontrolsphaseloss.Evaporator electric heater–Electricheatercontrolledbyathermostattoprotecttheevaporatorfromfreezingdownto-15°Cambienttemperature.Victaulic evaporator water connection–Hydraulicjointwithgasketforaneasyandquickwaterconnection.General fault protection–Contactorforalarmwarning.Discharge line shut off valves–Installedonthedischargeportofthecompressor.Suction line shut off valve–Suctionshut-offvalveinstalledonthesuctionportofthecompressortofacilitatemaintenanceoperation(OnlyforMCS050/MCS060/MCS080).Flow switch–Suppliedseparatelytobewiredandinstalledontheevaporatorwaterpiping(bythecustomer).Spring type vibration mounts – Supplied separately, these have to be positioned under the base of the unit duringinstallation.Idealfordampeningvibrationsonroofsinstallationandmetallicstructures.
Glycol version–Set-pointcangodownto-8°C.Speed control – Continuous fan speed modulation on the first fan of each circuit. It allows the unit working with air temperature downto-15°C.Condenser coil guards – Metal protection guards fixed on all the external surface of the condenser coils.Cu-Cu condenser coils–Togivebetterprotectionagainstcorrosionbyaggressiveenvironments.Alu-coat condenser coils–Finsareprotectedbyaspecialacrylicpaintwithahighresistancetocorrosion.HighpressureguagesLowpressureguagesSoft start–Electronicstartingdevicetoreduceinrushcurrentandtostartcompressorsgradually,withverylowmechanicalstress.
BMS (Building Management System) protocol–Modbus,LonWorks,BACnet
Note: These options should be factory mounted. Field modifications are not available.
4.1 Standard accessories (supplied on basic unit)
4.2 Optional accessories (on request)
4. Accessories
AirCooledSingleScrewChiller
24
Unit:mm
Model 050.1060.1
070.1080.1
100.1120.1135.1
150.1170.1 185.1 200.2
220.2235.2260.2
285.2310.2
330.2350.2380.2
DepthD 2975 3200 4100 5000 5900 7300 8200 9100 10000
HeightH 2385 2460
Model 050.1060.1
070.1080.1
100.1120.1135.1
150.1170.1 185.1 200.2
220.2235.2260.2
285.2310.2
330.2350.2
DepthD 2975 3200 4100 5000 5900 7300 8200 9100 10000
HeightH 2385 2460
H
D
D-100
2260
ST[R22]
ST[R407C]
5. Dimensions
AirCooledSingleScrewChiller
25
6. Piping Diagram
MCS050.1~080.1FST
AirCooledSingleScrewChiller
26
MCS100.1~120.1,MCS200.2~235.2F
AirCooledSingleScrewChiller
27
MCS135.1~185.1,MCS260.2~380.2F
M1M11 M12 M13 M14
PCO2(3)QC0AL0CP1
PGD
EV BAT.1
EXVB 1
EXV.1CIRC.1
WL1 ST1
PCO2(3)QC0AL0CP1
28
7. Wiring DiagramMCS050/060.1F22/407c
Air Cooled Single Screw Chiller
M1M11 M12 M13 M14 M15 M16
PCO2(3)QC0AL0CP1
EV BAT.1
EXVB 1
EXV.1CIRC.1
WL1 ST1
PCO2(3)QC0AL0CP1
PGD
EXP4(PC0E0004850)
29
MCS070/080.1F22/407c
Air Cooled Single Screw Chiller
CP1
M11 M12 M17M13 M14 M15 M16 M18 M19 M20M1
PCO2(3)QC0AL0CP1
PGD
EV BAT.1
EXVB 1
EXV.1CIRC.1
WL1 ST1EXP4(PC0E0004850)
PCO2(3)QC0AL0
MCS100/120/135/150/170.1F22/407c
Air Cooled Single Screw Chiller
30
PCO2(3)QC0AL0
M1
WL1 ST1
PCO2(3)QC0AL0
EXP4(PC0E0004850)
CP1
M12M11 M13 M19M16M14 M15 M17 M18 M20 M21 M22
CP1
PGD
EV BAT.1
EXVB 1
EXV.1CIRC.1
MCS185.1F22/407c
Air Cooled Single Screw Chiller
31
(PC0E0004850)EXP4
EV BAT.1
CIRC.1EXV.1
EXVB 1
CP1
M12M11 M13 M15M14 M16 M17 M19M18 M20 M24 M25 M27M26 M28 M30M29
PCO2(3)QC0AL0
M23M2
M21 M22
PGD
M1
WL1 ST1
EV BAT.2
EXVB 2
EXV.2CIRC.2
WL2 ST2
PCO2(3)QC0AL0CP1
MCS200/220/235/260/285/310/330/350/380.2F22/407c
Air Cooled Single Screw Chiller
32
Air Cooled Single Screw Chiller
33
AirCooledSingleScrewChiller
34
Model LWT °C
Ambient temperature (°C)25 28 30 35 40 42
CAP PI CAP PI CAP PI CAP PI CAP PI CAP PIkW
MCS050.1
4 168 54 164 55 161 56 153 58 145 61 142 625 175 55 170 56 167 57 159 59 151 62 148 636 181 56 176 57 173 58 164 60 156 63 153 617 187 57 182 58 179 59 170 61 161 64 158 658 193 58 188 59 184 60 176 62 167 65 163 669 200 59 194 60 190 61 181 63 172 66 169 67
MCS060.1
4 203 66 198 67 194 68 185 70 175 73 172 755 211 67 205 68 201 69 191 71 182 75 178 766 218 68 212 69 208 70 198 73 188 76 184 787 226 70 219 71 215 71 205 74 195 77 191 798 233 71 227 72 222 73 212 75 201 79 197 809 241 72 234 73 230 74 219 77 208 80 203 82
MCS070.1
4 238 78 231 79 222 80 216 83 201 86 197 885 247 79 234 80 230 81 224 84 208 88 203 906 255 80 231 82 227 82 232 85 205 89 201 917 264 82 240 83 235 84 240 87 213 91 208 938 273 83 248 84 244 85 248 89 235 93 216 959 282 85 257 86 252 87 256 90 228 94 223 96
MCS080.1
4 277 90 270 91 265 93 252 96 239 100 234 1025 288 92 280 93 275 94 261 98 248 102 243 1046 298 93 290 95 284 96 271 99 257 104 252 1067 308 95 300 96 294 97 280 101 266 106 260 1088 318 97 310 98 304 99 289 103 275 108 269 1109 329 98 320 100 314 101 299 105 284 110 278 112
MCS100.1
4 357 105 347 107 340 108 324 112 308 117 301 1205 370 107 360 109 353 110 336 114 319 119 312 1226 383 109 373 111 366 112 348 116 331 121 324 1247 396 111 385 113 378 114 360 118 342 123 335 1268 409 113 398 115 391 116 372 120 353 126 346 1289 423 115 411 117 403 118 384 122 365 128 357 131
MCS120.1
4 418 121 407 123 399 125 380 129 361 135 353 1385 434 123 422 125 414 127 394 131 374 137 366 1406 449 126 437 127 428 129 408 134 387 140 379 1437 464 128 452 130 443 131 422 136 401 142 392 1458 480 130 467 132 458 134 436 138 414 145 405 1489 495 133 482 134 473 136 450 141 427 147 418 150
MCS135.1
4 451 127 439 129 430 130 410 135 389 141 381 1445 468 129 455 131 446 132 425 137 403 143 395 1466 484 131 471 133 462 135 440 140 418 146 409 1497 501 134 487 135 478 137 455 142 432 149 423 1528 517 136 503 138 494 139 470 145 446 151 437 1549 534 138 519 140 510 142 485 147 461 154 451 157
MCS150.1
4 520 151 506 153 496 155 473 160 449 168 439 1715 539 153 525 156 515 157 490 163 465 171 456 1746 559 156 543 158 533 160 508 166 482 174 472 1777 578 159 562 161 551 163 525 169 499 177 488 1808 597 162 581 164 570 166 542 172 515 180 504 1849 616 165 599 167 588 169 560 175 532 183 520 187
MCS170.1
4 619 180 602 183 591 185 563 192 534 201 523 2055 642 183 625 186 613 188 583 195 554 204 542 2086 665 187 647 189 635 191 604 198 574 208 562 2127 688 190 669 193 656 195 625 202 594 211 581 2168 711 193 691 196 678 198 646 206 613 215 600 2199 734 197 713 200 700 202 666 209 633 219 620 223
NOTES:CAP:coolingcapacity(kW)PI: powerinput(kW)
8. Capacity Tables
8.1 MCS050.1FST~MCS380.2FST[R22]
AirCooledSingleScrewChiller
35
Model LWT °C
Ambient temperature (°C)25 28 30 35 40 42
CAP PI CAP PI CAP PI CAP PI CAP PI CAP PIkW
MCS185.1
4 648 173 630 176 618 178 589 184 559 193 547 1975 672 176 654 179 641 181 611 187 580 196 568 2006 696 179 677 182 664 184 632 191 600 199 588 2037 720 182 700 185 687 187 654 194 621 203 608 2078 744 186 723 188 710 191 676 197 642 207 628 2119 768 189 747 192 732 194 697 201 662 210 648 215
MCS200.2
4 713 207 694 210 681 213 648 220 616 230 603 2355 740 211 720 214 706 216 672 224 638 234 625 2396 766 214 745 217 731 220 696 228 661 238 647 2437 792 218 771 221 756 224 720 232 684 183 669 2488 819 222 796 225 781 228 744 236 706 247 691 2529 845 226 822 229 806 232 768 240 729 252 714 257
MCS220.2
4 775 225 754 228 739 231 704 239 669 250 654 2555 803 229 781 232 767 235 730 243 693 255 679 2606 832 233 809 236 794 239 756 248 718 259 703 2647 861 237 837 240 821 243 782 252 743 264 727 2698 889 241 865 245 849 248 808 257 767 268 751 2749 918 246 893 249 876 252 834 261 792 273 775 279
MCS235.2
4 832 242 810 245 794 248 756 257 718 269 703 2755 863 246 839 250 824 253 784 262 745 274 729 2796 894 250 869 254 853 257 812 266 771 278 755 2847 924 255 899 258 882 261 840 271 798 283 781 2898 955 259 929 263 912 266 868 276 824 289 807 2949 986 264 959 268 941 271 896 281 851 294 833 300
MCS260.2
4 941 257 916 261 898 264 855 273 812 286 795 2925 976 262 949 265 931 268 887 278 842 291 824 2976 1011 266 983 270 965 273 918 283 872 296 854 3027 1046 271 1017 275 998 278 950 288 902 301 883 3078 1080 276 1051 280 1031 283 982 293 932 307 912 3139 1115 281 1084 285 1064 288 1013 299 962 312 942 319
MCS285.2
4 991 279 964 283 946 287 900 297 855 311 837 3175 1027 284 999 288 981 292 934 302 887 316 868 3236 1064 289 1035 293 1015 297 967 308 918 322 899 3287 1101 294 1070 299 1050 302 1000 313 950 327 930 3348 1137 300 1106 304 1085 307 1033 319 981 333 960 3409 1174 305 1141 309 1120 313 1066 324 1013 339 991 346
MCS310.2
4 1060 308 1031 312 1012 316 963 328 915 343 896 3505 1099 313 1069 318 1049 321 999 333 949 348 929 3566 1139 319 1107 323 1086 327 1034 339 982 355 962 3627 1178 294 1145 329 1124 333 1070 345 1016 361 995 3688 1217 330 1183 335 1161 339 1105 351 1050 367 1028 3759 1256 336 1221 341 1198 345 1141 358 1084 374 1061 382
MCS330.2
4 1152 335 1121 340 1100 344 1047 356 994 372 973 3805 1195 341 1162 345 1140 349 1086 362 1031 379 1009 3866 1237 346 1204 351 1181 355 1124 368 1068 385 1045 3937 1280 353 1245 358 1221 362 1163 375 1104 392 1081 4008 1322 359 1286 364 1262 368 1202 382 1141 399 1117 4079 1365 366 1328 371 1303 375 1240 389 1178 407 1153 415
MCS350.2
4 1288 362 1253 368 1229 372 1170 385 1112 403 1088 4115 1336 369 1299 374 1275 378 1214 392 1153 410 1128 4186 1383 375 1345 380 1320 385 1257 399 1194 417 1168 4267 1431 382 1392 387 1365 392 1300 406 1235 425 1208 4338 1478 389 1438 394 1411 399 1343 413 1276 432 1249 4419 1526 396 1484 401 1456 406 1386 421 1317 440 1289 449
MCS380.2
4 1358 356 1320 361 1296 366 1233 379 1171 396 1147 4045 1408 362 1369 367 1343 372 1279 385 1215 403 1189 4116 1458 369 1418 374 1391 378 1324 392 1258 410 1231 4187 1508 375 1466 381 1439 385 1370 399 1301 417 1273 4268 1558 382 1515 387 1487 392 1415 406 1344 425 1316 4339 1608 389 1564 394 1534 399 1461 414 1387 433 1358 441
NOTES:CAP:coolingcapacity(kW)PI: powerinput(kW)
AirCooledSingleScrewChiller
36
Model LWT °C
Ambient temperature (°C)25 28 30 35 40 42
CAP PI CAP PI CAP PI CAP PI CAP PI CAP PIkW
050.1
4 163 54 158 55 155 56 148 58 140 61 137 625 169 55 164 56 161 57 153 59 145 62 142 636 175 56 170 57 167 58 159 60 151 63 147 617 180 57 176 58 172 59 164 61 156 64 152 658 186 58 181 59 178 60 176 62 161 65 158 669 192 59 187 60 184 61 181 63 166 66 163 67
060.1
4 196 66 191 67 187 68 178 70 169 73 166 755 203 67 198 68 194 69 185 71 176 75 172 766 211 68 205 69 201 70 191 73 182 76 178 787 218 70 212 71 208 71 198 74 188 77 184 798 225 71 219 72 215 73 205 75 194 79 190 809 232 72 226 73 222 74 211 77 201 80 196 82
070.1
4 230 78 224 79 215 80 209 83 194 86 190 885 238 79 226 80 222 81 217 84 201 88 196 906 247 80 224 82 219 82 224 85 198 89 194 917 255 82 232 83 227 84 232 87 206 91 201 938 264 83 240 84 236 85 240 89 228 93 208 959 272 85 248 86 244 87 247 90 220 94 216 96
080.1
4 268 90 260 91 255 93 243 96 231 100 226 1025 277 92 270 93 265 94 252 98 239 102 234 1046 287 93 279 95 274 96 261 99 248 104 243 1067 297 95 289 96 284 97 270 101 256 106 251 1088 307 97 299 98 293 99 279 103 265 108 259 1109 317 98 308 100 302 101 288 105 273 110 268 112
100.1
4 344 111 334 112 328 114 312 118 297 123 290 1265 357 113 347 114 340 116 324 120 308 125 301 1286 369 115 359 116 352 118 335 122 319 127 312 1307 382 117 371 118 364 120 347 124 330 130 323 1328 395 119 384 120 377 122 359 126 340 132 333 1359 407 121 396 123 389 124 370 129 351 134 344 137
120.1
4 403 128 392 129 385 131 366 136 348 142 341 1455 418 130 407 132 399 133 380 138 361 144 353 1476 433 132 421 134 413 136 393 141 374 147 366 1507 448 134 436 136 427 138 407 143 387 150 378 1538 463 137 450 139 442 140 420 146 399 152 391 1559 478 139 465 141 456 143 434 148 412 155 403 158
135.1
4 435 133 423 135 415 136 395 141 375 148 367 1515 451 135 439 137 430 139 410 144 389 150 381 1546 467 138 454 140 446 141 424 146 403 153 395 1567 483 140 470 142 461 144 439 149 417 156 408 1598 499 143 486 145 476 146 454 152 431 159 422 1629 515 145 501 147 492 149 468 154 445 162 435 165
150.1
4 502 158 489 160 479 162 456 168 434 176 424 1795 521 161 507 163 497 165 473 171 450 179 440 1826 539 164 525 166 515 168 490 174 465 182 456 1867 558 166 543 169 532 171 507 177 481 185 471 1898 577 169 561 172 550 174 524 180 497 188 487 1929 595 173 579 175 568 177 541 183 513 192 503 196
170.1
4 598 189 581 192 570 194 543 201 516 211 505 2155 620 193 603 195 591 198 563 205 535 214 523 2186 642 196 624 199 612 201 583 208 554 218 542 2227 664 199 645 202 633 205 603 212 573 222 561 2268 686 203 667 206 654 208 623 216 592 226 579 2309 708 207 688 210 675 212 643 220 611 230 598 235
NOTES:CAP:coolingcapacity(kW)PI: powerinput(kW)
8.2 MCS050.1FST~MCS350.2FST[R407C]
AirCooledSingleScrewChiller
37
Model LWT °C
Ambient temperature (°C)25 28 30 35 40 42
CAP PI CAP PI CAP PI CAP PI CAP PI CAP PIkW
185.1
4 625 182 608 185 597 187 568 194 540 203 528 2075 648 185 631 188 619 190 589 197 559 206 548 2106 671 188 653 191 641 193 610 200 579 210 567 2147 694 192 675 195 663 197 631 204 599 213 587 2188 718 195 698 198 685 200 652 208 619 217 606 2229 741 199 720 202 707 204 673 211 639 221 625 226
200.2
4 689 218 670 221 657 224 626 232 594 242 582 2475 714 222 695 225 681 227 649 236 616 246 603 2516 739 225 719 229 706 231 672 240 638 251 625 2567 765 229 744 233 730 235 695 244 660 193 646 2608 790 234 769 237 754 240 718 248 682 260 667 2659 816 238 793 241 778 244 741 253 704 265 689 270
220.2
4 748 237 728 240 714 243 680 252 646 263 632 2695 776 241 754 244 740 247 705 256 669 268 655 2736 803 245 781 248 767 251 730 260 693 272 679 2787 831 249 808 253 793 256 755 265 717 277 702 2838 859 254 835 257 819 260 780 270 741 282 725 2889 886 258 862 262 846 265 805 275 765 287 748 293
235.2
4 804 254 782 258 767 261 730 271 693 283 767 2895 833 259 810 262 795 266 757 275 719 288 796 2946 863 263 839 267 823 270 784 280 745 293 824 2997 893 268 868 272 852 275 811 285 770 298 852 3048 922 273 897 277 880 280 838 290 796 303 779 3109 952 278 926 282 908 285 865 295 821 309 804 315
260.2
4 909 270 884 273 867 277 826 287 784 300 767 3065 942 274 916 278 899 281 856 292 813 305 796 3116 976 279 949 283 931 286 887 297 842 310 824 3177 1009 284 982 288 963 291 917 302 871 316 852 3228 1043 289 1014 293 995 297 947 307 900 322 881 3289 1076 294 1047 299 1027 302 978 313 929 327 909 334
285.2
4 956 294 930 298 913 301 869 312 825 327 808 3335 992 299 964 303 946 307 901 318 856 332 837 3396 1027 304 999 308 980 312 933 323 886 338 867 3457 1062 309 1033 314 1014 317 965 329 916 344 897 3518 1097 315 1067 319 1047 323 997 335 947 350 927 3579 1133 321 1102 325 1081 329 1029 341 977 357 957 364
310.2
4 1024 323 996 328 977 332 930 344 883 359 865 3675 1061 329 1032 333 1013 337 964 350 916 366 896 3736 1099 334 1069 339 1049 343 999 356 948 372 928 3807 1137 309 1106 345 1085 349 1033 362 981 379 960 3868 1175 347 1142 351 1121 356 1067 369 1014 385 992 3939 1212 353 1179 358 1157 362 1102 375 1046 392 1024 400
330.2
4 1112 352 1081 357 1061 361 1010 374 959 391 939 3995 1153 358 1121 363 1100 367 1047 380 995 398 974 4066 1194 364 1161 369 1139 374 1085 387 1030 405 1008 4137 1235 370 1201 376 1178 380 1122 394 1066 412 1043 4208 1276 377 1241 383 1218 387 1159 401 1101 419 1078 4289 1317 384 1281 390 1257 394 1196 408 1136 427 1112 436
350.2
4 1244 380 1210 386 1187 390 1130 404 1073 423 1050 4325 1289 387 1254 392 1231 397 1172 411 1113 430 1089 4396 1335 394 1299 399 1274 404 1213 419 1152 438 1128 4477 1381 401 1343 406 1318 411 1255 426 1192 446 1167 4558 1427 408 1388 414 1362 418 1297 434 1231 454 1205 4639 1473 415 1433 421 1406 426 1338 442 1271 462 1244 471
NOTES:CAP:coolingcapacity(kW)PI: powerinput(kW)
AirCooledSingleScrewChiller
38
NOTES:CAP:coolingcapacity(kW)PI: powerinput(kW)
Model LWT°C
Ambienttemperature(°C)25 28 30 35 40
CAP PI CAP PI CAP PI CAP PI CAP PIkW
050.1
4 165 54 161 55 158 55 150 57 143 605 172 55 167 55 164 56 156 58 148 616 178 56 173 56 170 57 161 59 153 627 184 57 179 57 175 58 167 60.2 159 638 190 58 185 58 181 59 176 61 164 649 196 59 191 60 187 60 181 62 169 65
060.1
4 199 65 194 66 190 67 181 70 172 735 207 66 201 67 197 68 188 71 178 746 214 68 208 69 204 69 194 72 185 757 221 69 215 70 211 71 201 73.2 191 778 229 70 222 71 218 72 208 75 197 789 236 71 229 72 225 73 214 76 204 79
070.1
4 233 77 226 78 218 79 212 81 197 855 241 78 229 79 225 80 219 83 204 876 250 79 226 80 222 81 227 84 201 887 259 81 235 82 230 83 235 85.8 208 908 267 82 243 83 239 84 243 87 231 919 276 84 252 85 247 86 251 89 223 93
080.1
4 272 89 264 90 259 91 247 95 234 995 282 91 274 92 269 93 256 96 243 1016 292 92 284 94 278 95 265 98 252 1037 302 94 293 95 288 96 274 99.8 260 1048 312 96 303 97 297 98 283 102 269 1069 322 97 313 99 307 100 292 103 277 108
100.1
4 350 104 340 105 334 107 318 111 302 1165 363 106 353 107 346 108 330 112 313 1186 376 108 365 109 358 110 341 114 324 1207 389 109 378 111 371 112 353 116.4 335 1228 401 111 390 113 383 114 365 118 346 1249 414 113 403 115 395 116 376 121 357 126
120.1
4 410 120 399 122 391 123 373 128 354 1335 425 122 414 124 406 125 386 130 367 1366 441 124 428 126 420 127 400 132 380 1387 456 126 443 128 435 130 414 134.4 393 1418 471 129 458 130 449 132 428 137 406 1439 486 131 473 133 464 134 441 139 419 146
135.1
4 442 125 430 127 422 129 402 133 381 1395 458 127 446 129 437 131 416 136 395 1426 475 130 462 132 453 133 431 138 409 1447 491 132 477 134 468 135 446 140.4 424 1478 507 134 493 136 484 138 461 143 438 1499 523 137 509 139 500 140 476 146 452 152
150.1
4 510 149 496 151 487 153 464 159 440 1665 529 152 515 154 505 156 481 161 457 1696 548 154 533 156 523 158 498 164 473 1727 567 157 551 159 541 161 515 167 489 1758 586 160 570 162 559 164 532 170 505 1789 604 163 588 165 577 167 549 173 522 181
170.1
4 607 179 591 181 580 183 552 190 524 1995 630 182 613 184 601 186 572 193 543 2026 652 185 634 187 622 190 593 197 563 2067 675 188 656 191 644 193 613 200 582 2098 697 191 678 194 665 196 633 204 601 2139 719 195 700 198 687 200 654 207 621 217
8.3 MCS050.1 FLN ~ MCS350.2 FLN [R22]
AirCooledSingleScrewChiller
39
NOTES:CAP:coolingcapacity(kW)PI: powerinput(kW)
Model LWT°C
Ambient temperature (°C)25 28 30 35 40
CAP PI CAP PI CAP PI CAP PI CAP PIkW
185.1
4 635 171 618 174 606 176 577 182 548 1905 659 174 641 176 629 179 598 185 568 1946 682 177 663 180 651 182 620 188 589 1977 705 180 686 183 673 185 641 191.6 609 2008 729 183 709 186 696 188 662 195 629 2049 752 187 732 189 718 192 684 199 649 208
200.2
4 700 205 680 208 668 210 636 218 604 2285 725 208 706 211 692 214 659 221 626 2316 751 212 731 215 717 217 683 225 648 2367 777 216 756 219 741 221 706 229.2 670 1818 803 219 781 223 766 225 729 233 693 2449 829 223 806 227 791 229 753 238 715 248
220.2
4 759 222 738 225 724 228 690 236 655 2475 787 226 765 229 751 232 715 240 679 2516 815 230 793 233 778 236 741 245 703 2567 843 234 820 237 805 240 766 249 727 2608 871 238 847 242 831 245 791 253 752 2659 899 243 874 246 858 249 817 258 776 270
235.2
4 816 239 793 243 778 245 741 254 704 2665 846 243 822 247 807 250 768 259 730 2706 876 247 852 251 836 254 796 263 756 2757 906 252 881 255 864 258 823 267.8 782 2808 936 256 910 260 893 263 850 273 808 2859 966 261 939 265 922 268 878 278 833 290
260.2
4 923 254 897 258 880 261 838 270 796 2835 957 259 930 262 913 265 869 275 825 2886 991 263 963 267 945 270 900 280 855 2937 1025 268 997 272 978 275 931 284.8 884 2988 1059 273 1030 277 1010 280 962 290 913 3039 1093 278 1063 282 1043 285 993 295 943 309
285.2
4 971 276 944 280 927 284 882 294 838 3075 1007 281 979 285 961 288 915 299 869 3136 1043 286 1014 290 995 293 947 304 900 3187 1079 291 1049 295 1029 299 980 309.6 931 3248 1114 296 1084 301 1063 304 1013 315 962 3309 1150 302 1119 306 1098 310 1045 321 992 336
310.2
4 1039 305 1011 309 992 313 944 324 897 3395 1078 310 1048 314 1029 318 979 330 930 3456 1116 315 1086 320 1065 324 1014 335 963 3517 1154 291 1123 326 1102 329 1049 341.4 996 3578 1193 327 1160 331 1138 335 1084 348 1029 3639 1231 333 1197 338 1175 341 1119 354 1062 370
330.2
4 1130 331 1099 336 1078 340 1026 352 975 3695 1171 337 1139 342 1118 346 1064 358 1011 3756 1213 343 1180 348 1158 352 1102 365 1047 3817 1255 349 1220 354 1197 358 1140 371.2 1083 3888 1296 355 1261 360 1237 365 1178 378 1119 3959 1338 362 1301 367 1277 371 1216 385 1155 402
350.2
4 1262 359 1228 364 1205 368 1147 382 1089 3995 1309 365 1273 370 1249 375 1189 388 1130 4066 1356 371 1318 377 1294 381 1232 395 1170 4137 1402 378 1364 383 1338 388 1274 402 1210 4208 1449 385 1409 390 1382 395 1316 409 1250 4289 1495 392 1454 397 1427 402 1359 417 1290 436
AirCooledSingleScrewChiller
40
NOTES:CAP:coolingcapacity(kW)PI: powerinput(kW)
Model LWT°C
Ambient temperature (°C)25 28 30 35 40
CAP PI CAP PI CAP PI CAP PI CAP PIkW
050.1
4 160 54 155 55 152 55 145 57 138 605 165 55 161 55 158 56 150 58 143 616 171 56 167 56 163 57 156 59 148 627 177 57 172 57 169 58 161 60.2 153 638 183 58 178 58 175 59 176 61 158 649 189 59 184 60 180 60 181 62 163 65
060.1
4 192 65 187 66 183 67 175 70 166 735 199 66 194 67 190 68 181 71 172 746 206 68 201 69 197 69 188 72 178 757 214 69 208 70 204 71 194 73.2 184 778 221 70 215 71 211 72 200 75 190 789 228 71 221 72 217 73 207 76 196 79
070.1
4 225 77 219 78 211 79 204 81 190 855 233 78 221 79 217 80 212 83 196 876 242 79 219 80 215 81 219 84 194 887 250 81 227 82 223 83 227 85.8 201 908 258 82 235 83 230 84 235 87 223 919 266 84 243 85 238 86 242 89 216 93
080.1
4 263 89 255 90 251 91 239 95 227 995 272 91 265 92 260 93 247 96 235 1016 282 92 274 94 269 95 256 98 243 1037 292 94 284 95 278 96 265 99.8 252 1048 301 96 293 97 288 98 274 102 260 1069 311 97 302 99 297 100 283 103 268 108
100.1
4 337 109 328 111 322 112 306 116 291 1225 349 111 340 113 333 114 317 118 301 1246 362 113 352 115 345 116 329 120 312 1267 374 115 364 117 357 118 340 122.4 323 1288 387 117 376 119 369 120 351 125 334 1309 399 119 388 121 381 122 363 127 344 133
120.1
4 395 126 385 128 377 130 359 134 341 1405 410 128 399 130 391 132 372 137 354 1436 425 131 413 133 405 134 386 139 366 1457 439 133 427 135 419 136 399 141.4 379 1488 454 135 441 137 433 139 412 144 391 1519 468 138 455 140 447 141 425 147 404 153
135.1
4 426 132 414 133 407 135 387 140 368 1465 442 134 430 136 422 137 401 142 381 1496 458 136 445 138 437 140 416 145 395 1517 473 139 460 141 452 142 430 147.4 408 1548 489 141 476 143 467 145 444 150 422 1579 505 144 491 146 482 147 459 153 435 160
150.1
4 492 156 478 158 469 160 447 166 424 1745 510 159 496 161 486 163 463 169 440 1776 528 162 513 164 504 166 480 172 455 1807 546 165 531 167 521 169 496 175 471 1838 564 168 549 170 538 172 512 178 487 1869 582 171 566 173 556 175 529 181 502 190
170.1
4 586 187 570 190 559 192 532 199 505 2095 607 191 591 193 579 196 552 203 524 2126 629 194 612 197 600 199 571 206 543 2167 650 197 633 200 621 203 591 210 561 2208 672 201 654 204 641 206 611 214 580 2249 694 205 675 208 662 210 630 218 599 228
8.4 MCS050.1 FLN ~ MCS350.2 FLN [R407C]
AirCooledSingleScrewChiller
41
NOTES:CAP:coolingcapacity(kW)PI: powerinput(kW)
Model LWT°C
Ambient temperature (°C)25 28 30 35 40
CAP PI CAP PI CAP PI CAP PI CAP PIkW
185.1
4 612 180 596 183 584 185 556 191 528 2005 635 183 618 186 606 188 577 195 548 2046 658 186 640 189 628 191 597 198 567 2077 680 190 661 192 649 195 618 201.6 587 2118 703 193 683 196 671 198 638 205 606 2159 725 197 705 199 692 202 659 209 626 219
200.2
4 675 215 656 218 644 221 613 229 582 2405 700 219 681 222 668 225 636 233 604 2446 725 223 705 226 691 229 658 237 625 2487 749 227 729 230 715 233 681 241.2 647 1918 774 231 753 234 739 237 704 246 668 2579 799 235 777 238 763 241 726 250 690 261
220.2
4 733 234 713 237 700 240 666 249 633 2605 760 238 739 241 726 244 691 253 656 2656 787 242 766 246 751 248 715 257 679 2697 814 246 792 250 777 253 740 262 703 2748 841 251 818 254 803 257 765 267 726 2799 869 255 845 259 829 262 789 272 749 284
235.2
4 787 252 765 255 751 258 715 268 679 2805 816 256 793 260 779 263 741 272 704 2856 845 260 822 264 806 267 768 277 729 2907 874 265 850 269 834 272 794 281.8 754 2958 903 270 878 274 862 277 820 287 779 3009 932 275 906 279 889 282 847 292 804 306
260.2
4 890 267 865 271 849 274 809 284 768 2975 923 271 897 275 881 278 838 289 796 3026 955 276 929 280 912 283 868 294 824 3077 988 281 961 285 943 288 898 298.8 853 3128 1021 286 993 290 974 293 928 304 881 3189 1054 291 1025 295 1006 299 958 310 909 324
285.2
4 937 291 912 295 895 298 852 309 809 3235 972 296 945 300 928 303 883 314 839 3296 1007 301 979 305 961 309 915 320 869 3357 1041 306 1013 311 994 314 946 325.6 898 3418 1076 312 1046 316 1027 320 977 331 928 3479 1110 317 1080 322 1060 326 1009 338 958 353
310.2
4 1003 320 975 325 957 328 911 340 865 3565 1040 325 1011 330 992 334 945 346 897 3626 1077 331 1047 336 1028 340 978 352 929 3687 1114 306 1083 342 1063 346 1012 358.4 961 3758 1151 343 1119 348 1098 352 1046 365 993 3829 1188 349 1155 354 1133 358 1079 372 1025 389
330.2
4 1090 348 1060 353 1040 357 990 370 941 3875 1130 354 1099 359 1079 364 1027 377 975 3946 1170 360 1138 366 1117 370 1063 383 1010 4017 1211 367 1177 372 1155 376 1100 390.2 1045 4088 1251 374 1217 379 1194 383 1136 397 1079 4159 1291 380 1256 386 1232 390 1173 404 1114 423
350.2
4 1218 377 1184 382 1162 387 1107 401 1051 4195 1263 383 1228 389 1205 393 1147 408 1090 4266 1308 390 1272 395 1248 400 1188 415 1128 4347 1353 397 1316 402 1291 407 1229 422 1167 4418 1398 404 1359 410 1334 414 1270 430 1206 4499 1442 411 1403 417 1376 422 1311 437 1245 458
AirCooledSingleScrewChiller
42
Notes: Average sound pressure level is according to ISO 3744, semispheric free field conditions.Soundpressurelevelsarereferredtounitsfurnishedwithouthydronickit.Measuring location is at 1m from the unit in semispheric free field (rif. 2×10-5Pa).
100
90
80
70
60
50
40
30
20
10
080706 05 04 03 0201654 9873
Water flow rate (L/S)
Pre
ssur
e dr
op (
KP
a)
MCS 260.2 FST 022/MCS 260.2 FST 407MCS 220.2/235.2 FST 022 / MCS 220.2/235.2 FST 407MCS 285.2/310.2 FST 022 / MCS 285.2/310.2 FST 407
MCS 330.2~380.2 FST 022 / MCS 330.2/350.2 FST 407MCS 200.2 FST 022/MCS 200.2 FST 407
MCS 150.1~185.1 FST 022 / MCS 150.1~185.1 FST 407MCS 120.1~135.1 FST 022 / MCS 120.1~135.1 FST 407
MCS100.1FST 022/MCS 100.1 FST 407MCS 070.1/080.1 FST 022 / MCS 070.1/080.1 FST 407MCS 050.1/060.1 FST 022 / MCS 050.1/060.1 FST 407
9. Pressure Drop Through Evaporator
AirCooledSingleScrewChiller
43
Model ST LN
Max.outsidetemperature °C 44 40
Min.outsidetemperaturewithoutFanSpeedControl °C 5 5withFanSpeedControl °C -15 -15
Max.leavingchilledwatertemperatureofwatersideheatexchanger °C 15 15
Min.leavingchilledwatertemperatureofwatersideheatexchanger
withoutglycol °C 4 4withglycol °C -8 -8
Max.temperaturedifferenceofwatersideexchanger °C 8 8Min.temperaturedifferenceofwatersideexchanger °C 4 4
SystemWaterVolume
Itisimportanttohaveadequatewatervolumeinthesystemtoprovideanopportunityforthechillertosensealoadchange,adjusttothechangeandstabilize.Astheexpectedloadchangebecomesmorerapid,agreaterwatervolumeisneeded.Thesystemwatervolumeisthetotalamountofwaterintheevaporator,airhandlingproductsandassociatedpiping.Ifthewatervolumeistoolow,operationalproblemscanoccurincludingrapidcompressorcycling,rapidloadingandunloadingofcompressors,erraticrefrigerantflow in the chiller, improper motor cooling, shortened equipment life and other undesirable occurrences.
Fornormalcomfortcoolingapplicationswherethecoolingloadchangesrelativelyslowly,werecommendaminimumsystemvolume.Calculationofthewatervolume(m3)isasbelow:
A:Onlyoneaircooledchiller:
where:
L=minimumwatervolume(m3)
P=nominalcoolingcapacity(kW)
B:Morethanoneaircooledchillersareparallelinthesamehydraulicsystem:(Leavingwatertemperatureissetfromlowtohightoallthechillers)
Where:
L’=minimumwatervolume(m3)
P’=nominalcoolingcapacityofwhichthelowestleavingwatertemperature(kW)
Leaving chilled water temperature(˚C)
Out
side
tem
pera
ture
(˚C
)
Gly
col a
pplic
atio
n
Fans speed control
Check on ratingtables for part loadoperating of each unit
40
30
20
10
0
-10
-20-10 -5 0 5 10 15 20
L=P×48.5×1.3
1000
L’=P’×48.5×1.3×1.551000
10. Operation Limits
10.1 Operation Limits
AirCooledSingleScrewChiller
44
Fouling factor (m2°C/kw) Cooling capacity correction Power correction COP correction0.017 1.045 0.974 1.073
0.044 1.022 0.986 1.037
0.086 1.000 1.000 1.000
0.132 0.980 1.013 0.967
AltitudecorrectionfactorsElevationabovesealevel(m) 0 300 600 900 1200 1500 1800
Barometricpressure(bar) 1.013 0.977 0.942 0.908 0.875 0.843 0.812
Coolingcapacitycorrectionfactor 1.000 0.993 0.986 0.979 0.973 0.976 0.960
Powerinputcorrectionfactor 1.000 1.005 1.009 1.015 1.021 1.026 1.031
Ethyleneglycolcorrectionfactors%Ofethyleneglycolbyweight 10 20 30 40 50
Coolingcapacitycorrectionfactor 0.991 0.982 0.972 0.961 0.946
Powerinputcorrectionfactor 0.996 0.992 0.986 0.976 0.966
Water flow rate correction factor 1.013 1.04 1.074 1.121 1.178
Waterpressuredropscorrectionfactor 1.070 1.129 1.181 1.263 1.308
LowtemperatureoperationperformancefactorsEthyleneglycolleavingwatertemperatureofchilledwater(°C) 2 0 -2 -4 -6 -8
Max.ambienttemperature(°C) 40 39 38 37 36 35
Coolingcapacitycorrectionfactor 0.842 0.785 0.725 0.67 0.613 0.562
Powerinputofcompressorcorrectionfactor 0.95 0.94 0.92 0.89 0.87 0.84
Min.%ofethyleneglycol 10 20 20 30 30 30
Foulingfactors(watersideheatexchanger)
10.2 Correction
AirCooledSingleScrewChiller
45
ModelOctave band level Overall
dBA Hz 63 125 250 500 1000 2000 4000 8000
46.4 65.5 71.6 76.2 75.3 71.3 64.9 56.4 74.0
43.5 56.6 63.3 69.4 70.0 65.6 60.2 56.0 74.0
53.7 64.6 70.3 71.0 69.7 65.2 57.4 49.3 76.0
48.0 63.6 69.2 71.0 69.6 68.0 61.4 53.9 76.0
53.9 66.4 72.4 71.2 70.9 65.5 59.6 53.3 77.0
40.5 58.2 65.8 71.8 73.5 68.2 60.6 54.1 77.0
46.5 58.5 68.3 71.0 72.8 69.4 62.3 54.9 77.0
51.9 69.1 72.4 72.9 72.2 64.5 57.4 50.6 78.0
51.8 66.7 69.9 73.3 73.6 68.2 60.3 51.4 78.0
46.7 65.2 70.8 74.6 74.0 69.5 62.0 52.1 79.0
45.8 65.9 69.8 73.6 74.1 71.7 63.0 56.7 79.0
49.3 66.7 71.7 74.3 75.2 72.2 65.5 58.5 80.0
54.2 66.6 75.0 74.0 74.5 70.1 63.7 57.2 80.5
46.4 65.5 71.6 76.2 75.3 71.3 64.9 56.4 80.5
53.7 68.1 73.3 77.3 76.5 72.9 67.0 59.1 81.0
58.8 68.1 71.9 74.9 76.6 73.7 66.9 60.0 81.0
46.4 65.5 71.6 76.2 75.3 71.3 64.9 56.4 81.0
45.4 60.5 72.1 76.0 75.5 71.6 65.4 56.8 81.0
54.6 67.6 73.2 76.6 76.6 72.7 66.4 59.2 81.5
MCS050.1FST
MCS060.1FST
MCS070.1FST
MCS080.1FST
MCS100.1FST
MCS120.1FST
MCS135.1FST
MCS150.1FST
MCS170.1FST
MCS185.1FST
MCS200.2FST
MCS220.2FST
MCS235.2FST
MCS260.2FST
MCS285.2FST
MCS310.2FST
MCS330.2FST
MCS350.2FST
MCS380.2FST
Notes: Average sound pressure level is according to ISO 3744, semispheric free field conditions.Soundpressurelevelsarereferredtounitsfurnishedwithouthydronickit.Measuring location is at 1m from the unit in semispheric free field (rif. 2×10-5Pa).
11.1 ST Overall Sound Level and Octave Band Level
11. Sound Level
AirCooledSingleScrewChiller
46
ModelOctave band level Overall
dBA Hz 63 125 250 500 1000 2000 4000 8000
48.0 45.4 58.0 64.9 65.9 62.0 56.8 49.5 70.0
42.2 45.4 57.3 66.3 66.2 60.1 53.1 44.5 70.0
49.9 49.1 57.4 65.6 70.0 60.8 53.8 49.4 72.0
52.0 51.3 56.8 65.9 69.9 60.4 53.2 48.5 72.0
41.3 55.2 62.3 67.9 69.2 65.6 58.9 50.9 73.0
52.0 53.0 59.9 67.1 70.3 64.8 58.0 50.7 73.0
53.8 54.9 59.7 67.3 70.3 64.9 58.2 50.3 73.0
47.3 57.5 63.7 69.2 70.4 64.8 58.1 50.1 74.0
43.5 56.6 63.3 69.4 70.0 65.6 60.2 56.0 74.0
43.5 58.1 64.8 70.5 71.2 65.1 57.8 49.1 75.0
40.6 58.0 65.9 69.6 70.6 66.4 60.4 56.0 75.0
42.9 58.1 67.2 70.2 70.6 65.7 60.0 55.0 75.0
43.3 56.8 67.8 71.3 71.8 66.1 58.3 51.4 76.0
47.2 59.3 65.2 70.5 72.0 68.0 62.4 56.7 76.0
40.4 57.0 67.3 72.3 73.0 68.4 60.9 52.5 77.0
37.7 60.8 66.1 71.2 73.2 69.3 62.9 56.9 77.0
44.2 61.9 67.5 72.3 72.1 67.6 61.3 55.2 77.0
43.2 50.5 66.9 72.2 73.1 68.7 61.6 51.8 77.0
MCS050.1FLN
MCS060.1FLN
MCS070.1FLN
MCS080.1FLN
MCS100.1FLN
MCS120.1FLN
MCS135.1FLN
MCS150.1FLN
MCS170.1FLN
MCS185.1FLN
MCS200.2FLN
MCS220.2FLN
MCS235.2FLN
MCS260.2FLN
MCS285.2FLN
MCS310.2FLN
MCS330.2FLN
MCS350.2FLN
Notes: Average sound pressure level is according to ISO 3744, semispheric free field conditions.Soundpressurelevelsarereferredtounitsfurnishedwithouthydronickit.Measuring location is at 1m from the unit in semispheric free field (rif. 2×10-5Pa).
11.2 LN Overall Sound Level and Octave Band Level
AirCooledSingleScrewChiller
47
Notes: LRA--LockedrotorAmpsinDeltaforeachcompressor.MFA--Max.FuseAmpsforeachcompressor.FLA--FullLoadAmpsforeachfanmotor.MRA--Max.RunningAmpsforunit(basedonoutdoortemp.43℃).RLA--RatedloadAmpsforunit(basedonoutdoortemp.35℃).InrushAmps--SingleSystem:Compressorinrushcurrent+Controlcircuitcurrent.DualSystem:InrushcurrentofMax.sizecompressor+0.8*runningcurrentofsmallsizecompressor(basedonoutdoortemp.43℃)+Fancurrent+Controlcircuitcurrent.ThesizeofpowercableandbreakerisrecommendedlargerthanMRA,ensuringthebreakerdoesn'tdisconnectwhilethechillerisstarting.
UnitStarting
Comp.(each) Fan motor(each) Unit
Model MCS Volts-Ph-Hz Voltage range Qty. LRA MFA Qty. kW FLA MRA RLA Inrush Amps
050.1FST2
380-3-50 Max.440VMin.360V Star-Delta
1 643 160 4 2 4 130 110 248050.1FST4060.1FST2
1 643 200 4 2 4 156 131 248060.1FST4070.1FST2
1 906 200 6 2 4 173 146 350070.1FST4080.1FST2
1 906 250 6 2 4 196 166 350080.1FST4100.1FST2
1 1678 315 8 2 4 257 215 648100.1FST4120.1FST2
1 1678 355 8 2 4 280 231 648120.1FST4135.1FST2
1 2166 355 8 2 4 299 251 837135.1FST4150.1FST2
1 2166 400 10 2 4 381 294 837150.1FST4170.1FST2
1 2166 500 10 2 4 429 365 837170.1FST4185.1FST2
1 2166 500 12 2 4 449 374 837185.1FST4200.2FST2
21678 315
14 2 4 499 417 881200.2FST4 1678 315220.2FST2
21678 315
15 2 4 537 449 893220.2FST4 1678 355235.2FST2
21678 355
16 2 4 622 503 921235.2FST4 1678 355260.2FST2
22166 355
16 2 4 647 539 1117260.2FST4 2166 355285.2FST2
22166 355
17 2 4 701 580 1162285.2FST4 2166 400310.2FST2
22166 400
18 2 4 757 636 1166310.2FST4 2166 400330.2FST2
22166 400
19 2 4 839 705 1222330.2FST4 2166 500350.2FST2
22166 500
20 2 4 939 788 1226350.2FST4 2166 500380.2FST2 2 2166 500 20 2 4 891 750 1226
12. Electric Characteristics
AirCooledSingleScrewChiller
48
2065
150
2225
530 1720
150
AB
B
625
A
2875
Distribution of shock absorber
Installation base
Unit base
ModelA
682 573
BBearing of spring shock damper (kg)
2065
2225
150530 1720
150
B
B
A
A
850
3100
Distribution of shock absorber
Installation base
Unit base
500 1300 1600 150
2225
2065
150
C
C
B
B
A
A
600
4000
Distribution of shock absorber
Installation base
Unit base
MCS050.1/060.1
ModelA
818 697
BBearing of spring shocker damper (kg)
MCS070.1/080.1
ModelA
722 722
B
656
CBearing of spring shockеr damper (kg)
MCS100.1
MCS050.1/060.1F
MCS070.1/080.1F
MCS100.1F
13. Foundation
AirCooledSingleScrewChiller
49
1600
150 1300500
2065
2225
150
C
C
B
B
A
A
600
4000
Distribution of shock absorber
Installation base
Unit base
A
A
2225
2065
C B
150 1400
C
500 1500
B
1506004000
Distribution of shock absorber
Installation base
Unit base
490015002000800 150
2065
2225
150
C
C
B
B
A
A
600
Distribution of shock absorber
Installation base
Unit base
ModelA
775 780
B
665
CBearing of spring shockеr damper (kg)
MCS120.1
ModelA
760 790
B
670
CBearing of spring shockеr damper (kg)
MCS135.1
ModelA
830 848
B
810
CBearing of spring shockеr damper (kg)
MCS150.1/170.1
MCS120.1F
MCS135.1F
MCS150.1/170.1F
AirCooledSingleScrewChiller
50
24005800
2225
2065
1300 1500 150150
C
C
B
B
A
A
600
Distribution of shock absorber
Installation base
Unit base
72001485
2065
2225
1100 1865 1565150
D
D
C
C
B
B
A
A
1185
Distribution of shock absorber
Installation base
Unit base
23008100
1950
2225
1100
2065
1550 150150
150
A
A
B
B
C
C
D
D
1200
Distribution of shock absorber
Installation base
Unit base
ModelA
900 940
B
940
CBearing of spring shockеr damper (kg)
MCS185.1
ModelA
955 864
B
864
C
955
DBearing of spring shockеr damper (kg)
MCS200.2
ModelA
1065 1066
B
898
C
898
DBearing of spring shockеr damper (kg)
MCS220.2
1132 1133 955 955MCS235.2
MCS185.1F
MCS200.2F
MCS220.2/235.2F
AirCooledSingleScrewChiller
51
MCS260.2F
MCS285.2/310.2F
MCS330.2~380.2F
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%.Adrainageditchshallbesetaroundtheearthbasetopreventwaterlogging,andthefoundationshallhavesmoothedge.Thefoundationshallhaveenoughstrengthtosupporttheoperatingweightoftheentireunit(thewaterpipinghavingcountedonthesupport).Aspringdampershallbeinstalledbetweentheunitandthegroundbase.Setboltsshallnotbepre-buried.Themodelofshockabsorbershallbechosenaccordingtotheloadtobecarried,andcannotbeexchanged.
C
C
19508100
150
D
D
2065
2225
150
1100
A
A
1550
B
B
2300 1200 150
Distribution of shock absorber
Installation base
Unit base
9000
15502500
2065
2225
2300 1200 150
150
A
A
B
B
C
C
D
D
Distribution of shock absorber
Installation base
Unit base
9900
1950
8022
2520
65
2000 120015502300 150
150
A
A
B
B
C
C
D
D
E
E
Distribution of shock absorber
Installation base
Unit base
ModelA
1153 1158
B
1037
C
1062
DBearing of spring shockеr damper (kg)
MCS285.2
1127 1134 1067 1102MCS310.2
ModelA
1065 1078B
917C
882D
Bearing of spring shockеr damper (kg)
MCS330.2
1065 1078 926 892MCS350.2
1084 1099 973 937
860E
869
912MCS380.2
ModelA
1116 1129
B
978
C
978
DBearing of spring shockеr damper (kg)
MCS260.2
AirCooledSingleScrewChiller
52
Flo
or
Chi
ller
unit
Wat
er fl
ow s
witc
h
Wat
er r
etur
n
Pur
ging
val
ve
Wat
er d
isch
arge
pip
e
Wat
er s
uppl
y
Roo
ftop
3/8
susp
ensi
on b
rack
et
Air
hand
ling
unit
Gat
e va
lve
Gat
e va
lve
Wat
er d
rain
age
slop
e>1/
100
Hea
t ins
ulat
ion
mat
eria
l3-
WA
YC
ontro
l val
ve
3-W
AY
Con
trol v
alve
Fan
coi
lun
itC
HW
R
CH
WS
CH
WS
CH
WR
Wat
er in
let
Wat
er d
isch
arge
Chi
lled
wat
erpu
mpB
utte
rfly
val
veP
ress
ure
gaug
eB
utte
rfly
valv
e
3/4"
gat
e va
lve
Wat
er d
isch
arge
Wat
erou
tlet
Hig
h-pr
essu
redo
uble
-bal
lan
ti-vi
brat
ion
hose
Y-s
hape
d fil
ter
Che
ck v
alve
1/2"
gat
e va
lve
Iflocationsofapumpandanexpansiontankarewrong,airisintermixedintothechilledwatersystem,
whichmayreducecapacityofthewaterchillerandcauseabnormalnoise.Besuretoinstallthepumpon.
14. Location of Water Circulating Pump
AirCooledSingleScrewChiller
53
15.1.1 LocationMakesurethejobsiteisclean,dirtanddustwillaccelerateagingofthemachine;
Hydraulicsystemandpowersupplyareready.Testundertherequirementoftheunit;
Double check the unit base. Make the base firm to meet the installation regulations;
Liftingandmovingmustbeperformedbyprofessionalpersonnelandcompanies.
15.1.2 UnloadThe unit is transported with charged refrigerant in the system. So take care while transporting the unit. The fins of the condenser are very soft. It will influence the heat exchange if the unit falls down or crafted.Usetheforktrucktomovetheunitinashortdistance.Andput3~6piecesofroundtubeundertheunittoeasethemoving.Moveslowlysothattheforceisbalance.
support wood
Transporting figure
chiller
round steel tube
15.2.1 CraneItisadvisedtodotheliftjobbyprofessionalliftingcompanyaccordingtotheweightoftheunit
15.2.2 Correct way to liftUse the lifting holes and spreader bar to avoid damage to the unit.(refer to the figure)
MHS/MCS050~185 lifting figure
15. Lifting15.1 Preparation
15.2 Unload
AirCooledSingleScrewChiller
54
ThelengthandweightofMHS/MCS200~380islarger,whichbringstroubletolifttheunit.Thequantityofthehoistcablesandliftingholescanbe decided as real condition. Refer to the following figure.
MHS/MCS200~260lifting figure MHS/MCS285~380lifting figure
15.2.3 Correct way to liftSetupaguardwhendotheliftingandit’snotallowedfornon-missionarytocomein;
Don’tstandundertheunitforsafetywhilelifting.
AirCooledSingleScrewChiller
55
The installation site should not be exposed to straight sunshine, and sufficient fresh air is necessary to cool the condenser. Enough clearance is needed to ensure the air circulation and service access. The unit should be installed on the base of floors or roofs which is sufficiently robust towithstandtheoperatingweightofunit.Pleaserefertothecataloguefortheoperatingweightofunit.Accessingladdershouldbeequippedwhentheunitistoohighforoperationandservicing.
BaseThe base should be strong enough to withstand the weight of running equipment. The base could be on the first floor or on the top. Refer to thenameplatetochecktheoperatingweight.Ifthebaseistoohigh,it’snotconvenienceforservicepeopletodothemaintenance.Theladdercanbeappliedifthebaseishigh.Thebaseshouldbestrongenoughtoenduretheweightoftheservicpeople.
Layout of the baseThe unit must be installed on the base that is strong enough. It’s recommended to use concrete slab as the base. Besides, don’t fix the base withthebuildingbasetogethertoescapethespreadofthenoise.
There’s installation hole on the base so that the unit can be fixed with base by screw.
When layout thebase, takecare that theunit isn’t crashedbyperson.Lock the inspectiondoor.And refer to local installation regulationdepartment.
Layout of the top buildingThe unit must be installed on the base on the top floor that is strong enough. Don’t cause any damage to the top. Ask for advice from installation engineer.Theremustbebeam,rubber,corkorotheranti-vibrationequipmentonthebasetoescapethespreadofvibration.
InstallationAnti-vibrationspringisinstalledreferringtothebasedrawing.Don’treleaseandadjustthescrewwhendotheinstallation.
Wiring ConnectionFactory has already finished the wiring on all the control connection;
Wiringonjob-site---MustfollowtheNECandlocalregulations.Fuseswitchandterminalconnectionareavailable;
Others---Contact for chilled water flow switch ,pump and alarm.
16. Installation
AirCooledSingleScrewChiller
56
16.1.2 Correct way to liftElevatetheinstallationheightoftheunit(unitbaseisrecommended1mhigherthanthehighestaccumulatedsnow.)
Snow
ac
cum
ulat
ion
size
Snow
ac
cum
ulat
ion
size
Incorrect Correct
16.1.3 Don’t install unit at places where snow will be accumulated.
Incorrect
16.1.1 Don’t install the unit under the eaves.
Incorrect Correct
16.1 Refer to the following items if the units are installed where there’s plenty of snow:
AirCooledSingleScrewChiller
57
3500
1500
1500
Leng
thw
ays
layo
ut
3500
3500
1500
1500
1500
1500
Late
ral l
ayou
t
1500
1500
16.2 When two or more units are positioned side by side, it’s recommended that follow the below figure to do the installation:
AirCooledSingleScrewChiller
58
Aftertheunitinstallation,thepipinginstallationbegins.It’sadvisedtofollowtheinstallationregulationsothatinstallationofhydraulicsystemisefficient. 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 aspossible;
Itisrecommendedtoapplymanualshut-offvalveonallpipingformaintenance;
Drainingpipeshouldbeinstalledatthelowestpointofwatercircuitinordertodrainouttheevaporatorandpipeline;
Airreliefvalveshouldbeinstalledatthehighestpointofwatercircuitinordertoremovetheairfromhydraulicsystem.Thermalinsulationisnotneededfordrainingpipeandairreliefvalveforeasyservice;
Accordingtotherequirementoftheproject,thedesignofevaporatorshouldfollowtheitemsbelow:
1)Theoutletofthepumpshouldbeconnectedwiththeinletoftheevaporator.Theinletofthepumpshouldbeenteringwatertube,not evaporator
2)Amorethan25meshesstrainermustbeinstalledattheinletofevaporator.
3)Thechilledwaterpipemustbecleanedcompletelybybypass.It’sprohibitedtouseshellandtubeevaporatortocleanthepipe.
4)Itisrecommendedthatthermometerandpressuregaugebeinstalledattheinletandoutletofwaterexchangersforeasyservice.
5)Chilledwaterpipeoutdoorshouldbecoveredwithelectricheater,andwithheatinsulationtopreventfreezingordewunderlowtemperature.
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.
16.3 Hydraulic System Installation
AirCooledSingleScrewChiller
59
Beforethestarting,dothefollowingexamination
16.4.1 Hydraulic systemExamallthepiping,makesurethepipingconnectionandthedirectionarecorrect;
Checkthewaterinlet/outletconnection;
Openallthevalves;
Turnonthepump,andcleanthepipe.Makesurethepipesareclean;
Checkifthere’sleakageontheconnection.Dischargetheairinthesystem.Hydraulicsystemshouldbecleanandwithoutrust
16.4.2 Electric and Control systemSwitchoffthemainpowerQ10,checkallthewiringinthecontrolbox;
Check the power that supplies the unit. The voltage fluctuation should be less than ±10% compared with the voltage marked on the nameplate. Phasevoltageunbalanceshouldbelessthan2%.Makesurethephasefrequencyiscorrect;
Makesurethepowersupplyisabundantsothattheunitcanstartunderfullload;
Makesureallthefuseandwireareallcorrectsizeandmatchedwiththeunits.Completeallthewiring;
Makesurealltheaccessoriesandcontrolpartsrunnormally.
16.4.3 UnitMakesurethecompressoroilheaterpoweronfor24hours;
Makesurethatallthevalve(shut-offvalve,ballvalveonsuctionlineandgaslineandsoon)areopen;
Switchonotherexternaldevices,suchaspumps;
Checkifallthesafetydeviceisoninitialpositionandthesettingiscorrect.
16.4 Starting
AirCooledSingleScrewChiller
60
Safety device Type Setting value Applicable modelHighPressurecut-outswitch PS2-G8A(Alco) ON:28kg/cm2 AllmodelsHighPressuresensor AKS3000(Danfoss) 27kg/cm2 AllmodelsLowPressuresensor AKS3000(Danfoss) 2.9kg/cm2 AllmodelsOilPressuresensor AKS3000(Danfoss) High pressure − Oil pressure>1.8kg/cm2 AllmodelsFreeze-upprotection NTC OFF:3°CON:4°C AllmodelsCompressorThermalProtector PT1000 110°C AllmodelsFuse RefertothebelowtableCompressorOvercurrentrelay
RefertothebelowtableFanMotorOvercurrentrelay
*Whenoutdoortemp.inlowerthan3°C,theunitcannotrun.
Model No. Safety device Type
MCS050.1
1 Fuseforcomp. NH2,GL160A500V,03568,WOHER/SIEMENS2 Fuseforfan 35A,01692,WOHER3 FuseforT1 10A,01674,WOHER4 FuseforT2 2A(PRI.)/8A(SEC.),DELIXI5 Fuseforevap. 8A,DELIXI
MCS060.1
1 Fuseforcomp. NH2,GL200A500V,03569,WOHER/SIEMENS2 Fuseforfan 35A,01692,WOHER3 FuseforT1 10A,01674,WOHER4 FuseforT2 2A(PRI.)/8A(SEC.),DELIXI5 Fuseforevap. 8A,DELIXI
MCS070.1
1 Fuseforcomp. NH2,GL250A500V,03569,WOHER/SIEMENS2 Fuseforfan 63A,01694,WOHER3 FuseforT1 10A,01674,WOHER4 FuseforT2 2A(PRI.)/8A(SEC.),DELIXI5 Fuseforevap. 8A,DELIXI
MCS080.1
1 Fuseforcomp. NH2,GL250A500V,03571,WOHER/SIEMENS2 Fuseforfan 63A,01694,WOHER3 FuseforT1 10A,01674,WOHER4 FuseforT2 2A(PRI.)/8A(SEC.),DELIXI5 Fuseforevap. 8A,DELIXI
MCS100.1
1 Fuseforcomp. NH2,GL315A500V,03574,WOHER/SIEMENS2 Fuseforfan 63A,01694,WOHER3 FuseforT1 10A,01674,WOHER4 FuseforT2 2A(PRI.)/8A(SEC.),DELIXI5 Fuseforevap. 8A,DELIXI
MCS120.1
1 Fuseforcomp. NH2,GL355A500V,03574,WOHER/SIEMENS2 Fuseforfan 63A,01694,WOHER3 FuseforT1 10A,01674,WOHER4 FuseforT2 2A(PRI.)/8A(SEC.),DELIXI5 Fuseforevap. 8A,DELIXI
MCS135.1
1 Fuseforcomp. NH2,GL355A500V,03574,WOHER/SIEMENS2 Fuseforfan 63A,01694,WOHER3 FuseforT1 10A,01674,WOHER4 FuseforT2 2A(PRI.)/8A(SEC.),DELIXI5 Fuseforevap. 8A,DELIXI
MCS150.1
1 Fuseforcomp. NH2,GL400A500V,03575,WOHER/SIEMENS2 Fuseforfan 63A,01694,WOHER3 FuseforT1 10A,01674,WOHER4 FuseforT2 2A(PRI.)/8A(SEC.),DELIXI5 Fuseforevap. 8A,DELIXI
17. Safty Devices Setting
AirCooledSingleScrewChiller
61
Model No. Safety device Type
MCS170.1
1 Fuseforcomp. NH2,GL500A500V,03581,WOHER/SIEMENS2 Fuseforfan 63A,01694,WOHER3 FuseforT1 10A,01674,WOHER4 FuseforT2 2A(PRI.)/8A(SEC.),DELIXI5 Fuseforevap. 8A,DELIXI
MCS185.1
1 Fuseforcomp. NH2,GL500A500V,03581,WOHER/SIEMENS2 Fuseforfan 63A,01694,WOHER3 Fuseforfan 25A,01691,WOHER4 FuseforT1 10A,01674,WOHER5 FuseforT2 2A(PRI.)/8A(SEC.),DELIXI6 Fuseforevap. 8A,DELIXI
MCS200.2
1 Fuseforcomp.1 NH2,GL315A500V,03574,WOHER/SIEMENS2 Fuseforcomp.2 NH2,GL315A500V,03574,WOHER/SIEMENS3 Fuseforfan1-2 63A,01694,WOHER4 FuseforT1 16A,01674,WOHER5 FuseforT2 2A(PRI.)/8A(SEC.),DELIXI6 Fuseforevap. 8A,DELIXI
MCS220.2
1 Fuseforcomp.1 NH2,GL315A500V,03574,WOHER/SIEMENS2 Fuseforcomp.2 NH2,GL355A500V,03574,WOHER/SIEMENS3 Fuseforfan1-2 63A,01694,WOHER4 FuseforT1 16A,01674,WOHER5 FuseforT2 2A(PRI.)/8A(SEC.),DELIXI6 Fuseforevap. 8A,DELIXI
MCS235.2
1 Fuseforcomp.1 NH2,GL355A500V,03574,WOHER/SIEMENS2 Fuseforcomp.2 NH2,GL355A500V,03574,WOHER/SIEMENS3 Fuseforfan1-2 63A,01694,WOHER4 FuseforT1 16A,01674,WOHER5 FuseforT2 2A(PRI.)/8A(SEC.),DELIXI6 Fuseforevap. 8A,DELIXI
MCS260.2
1 Fuseforcomp.1 NH2,GL355A500V,03574,WOHER/SIEMENS2 Fuseforcomp.2 NH2,GL355A500V,03574,WOHER/SIEMENS3 Fuseforfan1-2 63A,01694,WOHER4 FuseforT1 16A,01674,WOHER5 FuseforT2 2A(PRI.)/8A(SEC.),DELIXI6 Fuseforevap. 8A,DELIXI
MCS285.2
1 Fuseforcomp.1 NH2,GL355A500V,03574,WOHER/SIEMENS2 Fuseforcomp.2 NH2,GL400A500V,03575,WOHER/SIEMENS3 Fuseforfan1-2 63A,01694,WOHER4 FuseforT1 16A,01674,WOHER5 FuseforT2 2A(PRI.)/8A(SEC.),DELIXI6 Fuseforevap. 8A,DELIXI
MCS310.2
1 Fuseforcomp.1 NH2,GL400A500V,03575,WOHER/SIEMENS2 Fuseforcomp.2 NH2,GL400A500V,03575,WOHER/SIEMENS3 Fuseforfan1-2 63A,01694,WOHER4 FuseforT1 16A,01674,WOHER5 FuseforT2 2A(PRI.)/8A(SEC.),DELIXI6 Fuseforevap. 8A,DELIXI
MCS330.2
1 Fuseforcomp.1 NH2,GL400A500V,03575,WOHER/SIEMENS2 Fuseforcomp.2 NH2,GL500A500V,03581,WOHER/SIEMENS3 Fuseforfan1-2 63A,01694,WOHER4 FuseforT1 16A,01674,WOHER5 FuseforT2 2A(PRI.)/8A(SEC.),DELIXI6 Fuseforevap. 8A,DELIXI
AirCooledSingleScrewChiller
62
Model No. Safety device Type
MCS350.2
1 Fuseforcomp.1 NH2,GL500A500V,03581,WOHER/SIEMENS2 Fuseforcomp.2 NH2,GL500A500V,03581,WOHER/SIEMENS3 Fuseforfan1-2 63A,01694,WOHER4 FuseforT1 16A,01674,WOHER5 FuseforT2 2A(PRI.)/8A(SEC.),DELIXI6 Fuseforevap. 8A,DELIXI
MCS380.2(R22only)
1 Fuseforcomp.1 NH2,GL500A500V,03581,WOHER/SIEMENS2 Fuseforcomp.2 NH2,GL500A500V,03581,WOHER/SIEMENS3 Fuseforfan1-2 63A,01694,WOHER4 FuseforT1 16A,01674,WOHER5 FuseforT2 2A(PRI.)/8A(SEC.),DELIXI6 Fuseforevap. 8A,DELIXI
ModelSafety device
Over current relay for compressor Over current relay for fan motor
MCS050.1 LR2-D3363C,Schneider LRD10KN×4,Schneider
MCS060.1 LR2-D3365C,Schneider LRD10KN×4,Schneider
MCS070.1 LR2-D4367C,Schneider LRD10KN×6,Schneider
MCS080.1 LR2-D4369C,Schneider LRD10KN×6,Schneider
MCS100.1 LR9F5369C,Schneider LRD10KN×8,Schneider
MCS120.1 LR9F5371C,Schneider LRD10KN×8,Schneider
MCS135.1 LR9F5371C,Schneider LRD10KN×8,Schneider
MCS150.1 LR9F5371C,Schneider LRD10KN×10,Schneider
MCS170.1 LR9F7375C,Schneider LRD10KN×10,Schneider
MCS185.1 LR9F7375C,Schneider LRD10KN×12,Schneider
MCS200.2 LR9F5369C×2,Schneider LRD10KN×14,Schneider
MCS220.2 LR9F5369C+LR9F5371C,Schneider LRD10KN×15,Schneider
MCS235.2 LR9F5371C×2,Schneider LRD10KN×16,Schneider
MCS260.2 LR9F5371C×2,Schneider LRD10KN×16,Schneider
MCS285.2 LR9F5371C×2,Schneider LRD10KN×17,Schneider
MCS310.2 LR9F5371C×2,Schneider LRD10KN×18,Schneider
MCS330.2 LR9F5371C+LR9F7375C,Schneider LRD10KN×19,Schneider
MCS350.2 LR9F7375C×2,Schneider LRD10KN×20,Schneider
MCS380.2 LR9F7375C×2,Schneider LRD10KN×20,Schneider
AirCooledSingleScrewChiller
63
Ifthechillerisfaulty,itisrecommendedtocheckonthefollowingpoints.
Trouble Probable Cause Remedy
Compressorisunabletostart
1.Mainswitchisnotclosed2.Fuseisblown,andcircuitswitchisnotclosed
3.Malfunctionofcontactororsolenoid4.Incorrectorderofthree-phaseinput5.Shutdownduetosafetydeviceprotection
6.Malfunctionofmotor
7.Loosewire
1.Closeswitch2.Checkifcircuitandmotorcoilisgrounded,
checkforoverload(aftertroubleshooting),replacefuseorcloseswitch,checkforloosenessorcorrosionatthejointsection.
3.Repairorreplace4.Putphasesinorder.5.Determinethetypeandcauseofshutdown,
andeliminatethemalfunctionbeforerestoringsafetyswitch.
6.Checkfordisconnection,short-circuitorburnoutofmotor.
7.Checkallwireterminals,tightenwireterminalbolt
8.Reset
Compressorisunabletooperatebutmakessound
1.Wiringmistake2.Lowvoltage3.Damageofcompressor
1.Checkandreconnectwire2.Checksupplyvoltage3.Replace
Compressorstopsandstartsagainu
1.Voltagedroponstart-updifferent2.Lackofrefrigerant
1.Checkvoltageandpowerline
2.Checkforleakage,repairandaddrefrigerantCompressormakesabnormalsoundandvibrates
1.Largevolumeofrefrigerantenteredtothecompressor
2.Damageofcompressor
1.Checksettingofexpansionvalve2.Replace
Highdischargepressure1.Non-condensablegasinthesystem2.Overchargedrefrigerant
1.Dischargenon-condensablegas2.Withdrawsurplusrefrigerant
Lowdischargetemperature
1.Improperadjustmentofcondensingtemperature
2.Suctionshutoffvalveisnotfullyopened3.Shortageofrefrigerant4.Compressorisnotloadedwhileoperating
1.Checkthecontrolandoperationprocessofcondenser
2.Openthevalve3.Checkforleakage,repairandcharge
refrigerant4.Refertothefollowingcorrectprocedurefor
handlinglowsuctionpressure5.Refertothefollowingmethodforhandling
failureofcompressorloading
Highsuctionpressure1.Excessivewaterinlettemperature2.Excessiveliquidsupplyofexpansionvalve3.Compressorisnotloadedwhileoperating
1.Decreaseloadoraddequipment2.CheckEXVsetting3.Refertothefollowingmethodforhandling
failureofcompressorloading
Lowsuctionpressure
1. Shortage of water flow2.Lowcondensingtemperature3.Evaporatorisdirty4.Adjustmentofexpansionvalveisincorrect5. Liquid supply pipe drying filter is clogged6.Compressorisunabletounload
1.Checkforleakage,repairandchargerefrigerant
2.Chemicalcleaning3.Replace4.CheckEXVsetting5.Checkandadjustcondensingtemperature6.Refertothefollowingmethodforhandling
failureofcompressorunloading7. Adjust water flow
Compressorisunabletoloadandunload
1.Failureofcapacitycontrol2.Impropercontrolsetting
1.Replace2.Reset
Shortintervalbetweencompressorloadingandunloading
1.Abnormalityofwatertemperaturecontroller2. Shortage of water flow, fast water flow
fluatuations
1.Replace2. Adjust water flow
Insufficent oil pressure 1. Oil filter is clogged2.Liquidrefrigerantenteredtotheoiltank3.Lowoillevel4.Damageofbearing5. Deficient water flow
1.Clean,replace2.Checkoiltankheateroperationexpansion
valvesetting.3.Replacecompressor4.Addoil5.Adjustexpansionvalve6. Adjust water flow
Oilshortage 1.Lackrefrigerant2.Damageofoiltankheater
1.Checkforleakageandrepair,addrefrigerant,checkoilfoaming.
2.ReplaceoilseperatorheaterMotoroverloadrelayisdisconnectedorfuseisblown
1.Lowvoltage2.Damageofmotorcoil3.Loosepowercable4.Highcondensingtemperature5.Voltageimbalanceduetomalfunctionofpower
cord
6.Highambienttemperatureofoverloadrelay
1.Checksupplyvoltageforexcessivevoltagedrop
2.Replacecompressormotor3.Checkalljointsandtighten4.Refertothemethodforhandlinghighdischarge
pressure5.Checksupplyvoltage,andstartcompressor
onlyafterPowerSupplyiscorrected.6.Improveventilationtoreduceheat
Compressorthermo-sensitiveprotectionswitchisturnedOFF
1.Operatingconditionsareoutofscopedesign 1.Makeimprovementtocontroltheconditionswithinpermissiblerange
18. Trouble and Action
AirCooledSingleScrewChiller
64
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: kWPower input for single air-cooled water chiller: kWEvaporator entering water temperature: °CEvaporator leaving water temperature: °CEvaporator water flow: L/minOutside working ambient temperature: °CThe 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 factory-installed 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 3744.Other types of rating are unacceptable. Vibration level should not exceed 2mm/s.
Dimensions Unit dimensions shall not exceed following indications:Unit length mmUnit width mmUnit 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 in-rush current.The oil injection shall be used in order to get high EER (Energy Efficiency Ratio) also at any load conditions.
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 (2950 rpm @ 50Hz), without gear transmission between
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.
19. Guide Specifications
AirCooledSingleScrewChiller
65
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.
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.
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.
AirCooledSingleScrewChiller
66
Hydraulic kit options (on request)
(Available on unit from MCS 070.1 FST 022/407~MCS 120.1 FST 022/407)The hydraulic module shall be integrated in the chiller chassis without increasing its dimensions and include the following elements: centrifugal monocle water pump with three-phase motor equipped with internal over-temperature protection, safety relief valve, filling kit.The water piping shall be protected against corrosion and equipped with drain and purge plugs. The customer connections shall be Victaulic connections. The piping and the water pump shall be fully insulated to prevent condensation (pump insulation using polyurethane foam, protected by aluminum panels). Electric resistance heaters shall guarantee Frost protection down to -20°C.
Control 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:
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 Entering 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 Setpoint 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
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.
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.
Chilled water temperature reset, controlled from the return water temperature or through a remote 4-20 mA DC signal or external ambient temperature;
©2011McQuayInternational+1(800)432-1342www.mcquay.com
Whileutmostcareistakeninensuringthatalldetailsinthepublicationarecorrectatthetimeofgoingtopress,weareconstantlystrivingforimprovementandthereforereservetherighttoaltermodelspecifications and equipment without notice.Details of specifications and equipment are also subject to change to suit local conditions and requirements andnotallmodelsareavailableineverymarket.