Pathfinder Air-Cooled Single-Screw Chiller/Heat Pump

Transcription

1 Engineered for flexibility and performance. TM MHS-R134a-2012 Pathfinder ir-ooled Single-Screw hiller/heat Pump Super-high-efficiency series : MHS105-MHS348 ooling capacity: 393 kw 1334 kw Heating capacity: 400 kw 1312 kw : MHS105-MHS380 ooling capacity: 352 kw 1325 kw Heating capacity: 352 kw 1319 kw : MS105-MS450 ooling capacity: 370kW-1604kW

2 McQuay ir-ooled Screw hiller/heat Pump Overview ir-cooled water chiller/hot water units are the central air conditioning units with air as the cold (hot) source, and water as the heat transfer medium. The units need no additional equipment room, cooling tower, cooling pump, or cooling pipe and can be mounted on the building roof and outdoors. The heat pump units can provide heat as a hot water boiler. This series of units are applicable to various environments, such as hospitals, hotels, factories, and office buildings. s the first designer and manufacturer of large air-cooled heat pump units, McQuay has been committed to technical improvement and innovation and leads the development of the air-cooled heat pump technology. For the consideration of environment protection and energy saving, McQuay applies the advanced technology to the latest ultra-efficient air-cooled heat pump units. y using the R134a environment-friendly refrigerant, this series of units have a full-load OP of over 3.2. This value is higher than the energy saving product certification standard, which makes them one of the most efficient, energy-saving, and quiet environmental-friendly air conditioning units. Moreover, McQuay has built a large 1600 kw full performance lab to ensure the quality and performance of the units ISO9001:2008 ISO14001:2004 S-OHSS18001: 2007 Quality Management System ertification EMS Environment Management System ertification Occupational Health and Safety ssessment Series ertification Test NS L0778 ertification of hina National ccreditation Service for onformity ssessment (NS) Obtained hina National Industrial Product Manufacture License Specification MHS 105 ST 3 - F E Export : Super-high-efficiency series : Power supply: F: 380V/3N /50Hz Refrigerant code: 3: R134a Product type: ST: Standard 105: ooling capacity code MHS: McQuay single-screw heat pump units MS: McQuay single-screw water chiller units 2

3 McQuay ir-ooled Screw hiller/heat Pump Features dvanced design and excellent performance McQuay adopts the latest R134a efficient single-screw compressor to greatly improve the efficiency. New design of four-way valve lowers the pressure drop. Over-compress technology significantly improves the four-way valve reliability. This design avoids short circuit. In this way, units efficiency and stability is much better. The new economizer design increases the unit sub-cooling, greatly promotes the unit s cooling capacity and EER. Unit full load EER is up to 3.2, and higher EER under part load. New high efficiency counter-flow shell & tube dry-expansion single pass evaporator (one or two internal independent refrigerant circuits) Super-high evaporate temperature, higher heat exchanging efficiency. The most advanced efficient single-screw compressor is adopted. The compressor can perform stepless adjustment within the range of 10% to 100% workload at maximum. ompared with the traditional compressors, this compressor has wider adjustment range and higher efficiency. The temperature of outlet water is stable. The output ability meets the workload demand of the construction system. The units can regulate the output based on the actual workload and maintains high efficiency when running at partial workload. In addition, the accurate adjustment of the energy and water temperature brings more comfortable experience to customers. ooling load (%) Figure 1 Figure 2 Stepless adjustment, high efficiency, and energy saving Required load ompressor load ooling load (%) Environment Friendly Refrigerant No hlorine No ODP Good Efficiency Low operation sound and vibration New very high efficiency (full and part load) McQuay Single Screw compressor. (technology by McQuay) Through meshing between metal and nonmetal, it eliminates the high frequency noise. nd with fewer moving parts and rotor load balance, it decreases most vibrations. With a, noise and vibrations are lowered further. Integrated design and compact structure are adopted for the units. The base can balance the entire unit weight. The spring-damper on the units helps to eliminate the operation sound and vibration. New high efficiency condenser fans (technology by McQuay) ondenser using high efficiency, low noise resin spiral fan motor, direct drive, 3d() noise lower compared with spiral blades. Easy installation and simple maintenance Flexible installation without additional equipment room, cooling tower, or cooling pump. The electric system of the units is integrated with the master unit, so an additional electric control cabinet is not required. n intelligent control system monitors and controls the operating status of the units and indicates the fault cause for the convenience of maintenance. ccurate control and reliable operation n advanced electrical expansion valve enables the units to control the refrigerant flow accurately, adapt to various working conditions, and perform multiple control functions. Temperature of outlet chilled water (º) Stepped energy adjustment Time Stepless energy adjustment Time Temperature of outlet chilled water (º) 3

4 McQuay ir-ooled Screw hiller/heat Pump The temperature of outlet chilled water is accurate to 0.5. In addition, various sensors in the system can transmit various kinds of signal data to the controller to implement timely protection for the unit components and ensure more reliable operation. The mechanism of tree-level password protection ensures safe operation of the units and prevents misoperations of non-professional personnel. ompressors start up one by one with a low startup current, to reduce the impact on the power grid. Multiple protection functions ensure safe operation of the units. Intelligent Network ontroller The units adopt the new-generation McQuay controller Micro Tech III. This controller integrates the heat pump applications and technologies of McQuay of more than 40 years and is equipped with programmable software. This enables compressors and fans to reach the highest OP. Main components uilt-in controller ontrol type: PL programmable Operation language: hinese/english Screen display: LD display Operating environment: Temperature: Relative humidity: 90%. External manual operator (optional) Main Functions utomatic load/unload based on changes of the actual air conditioning load Operating status display of the units ommon fault alarm display Water temperature control to an accuracy to 0.5 Output load PID control alancing the operating duration of each compressor ompressor load control Three-level password protection Stepless load adjustment Failure history query Network control Multiple communication ports such as the Modbus, LonWorks, and net can be added to the controller for integrated control or automatic building control to implement joint control of multiple units (optional). Operating status query Unit status Temperature of inlet/outlet water ompressor status ir charge and discharge pressure Temperature and superheat of air charge and discharge Openness of electrical expansion valve Oil pressure mbient temperature Protection functions High pressure protection Low pressure protection Fan overload protection ompressor air discharge overheat protection ompressor overload protection Low compression ratio protection High oil pressure difference protection Sensor failure protection ompressor startup failure protection Phase sequence protection Evaporator anti-freezing protection Water flow protection 4

5 McQuay ir-ooled Screw hiller/heat Pump McQuay ultra-efficiency single-screw compressor (intended for R134a refrigerant) Features McQuay leads the single-screw compressor technology. The Semi-hermetic compressor features high efficiency, energy saving, quiet operation, few moving components, and long service life. Few moving components McQuay single-screw compressor consists of only five moving components: a screw rotor, two star wheels, and two energy adjustment slide valves. The screw rotor is a six-tooth aluminum coated steel component. The star wheel is an eleven-tooth component made of high-strength composite material. Long duration and high reliability The star wheels made of high-strength composite material can ensure the accuracy and the minimum gap and guarantee operation without wear and tear. The oil injection and liquid injection design of the compressor minimizes air superheat and eliminates the possibility of oil and refrigerant decomposition due to superheat. Simple maintenance The removable side cover of the star wheel box simplifies the routine inspection without the need of removing and installing pipelines. Such a design facilitates the check of the internal components of the compressor. Low operation sound and vibration McQuay single-screw compressor can balance the load completely during its operation. Therefore, the vibration can be ignored because the noise value is lower than the industrial standard. The compressor does not contact with any metal during compression so that no high frequency noise is generated. The special-shaped air discharge cavity helps eliminate noises effectively. Unique star wheel and rotor design The star wheel of McQuay single-screw compressor is made of special materials that can avoid metal engagement between the star wheel and rotor. The small engagement gap and low engagement resistance implement zero gap engagement. The unique oil supply system that uses the oil pressure difference function enables more efficient sealing, lubrication, and cooling of the compressor. In this way, the engagement resistance is further reduced and the efficiency of entire units is improved. High-efficiency oil separator The application of high-efficiency oil separator increases the oil separation rate to 99.7%. The oil leakage problem during the compression is resolved, and the reliability and efficiency of the compressor is improved. Options nticorrosion aluminum fins mmeter and voltmeter High/low pressure gauge Soft starter External manual operator uilding automation ports: Modbus, Lon Works, and net. 5

6 McQuay ir-ooled Screw hiller/heat Pump McQuay Single-Screw Heat Pump Super-high-efficiency series Unit MHS-FE ST Nominal ooling apacity kw x10 4 kcal/h ompressor Power Input (ooling) kw Nominal Heating apacity kw x10 4 kcal/h ompressor Power Input (Heating) kw Refrigerant ompressor ir-side Heat Exchanger Fan Water-side Heat Exchanger Unit Dimensions Weight Power Supply 380V/3N-/50Hz apacity Steps 10%-100% 5%-100% Type R134a urcuit No. 1 2 Flow ontrol Type EXV Positive Displacement Semi-hermetic Single-screw Quantity 1 2 Startup ooling Type Type Star Delta Liquid Injection ooling rossed Fin and Tube Efficient Spiral xial Fan Quantity n ir Flow x10 4 m 3 /h Motor Power Input kw Type Water Flow Rate (ooling) Water Flow Rate (Heating) Shell and Tube Heat Exchanger m 3 /h m 3 /h Water Resistance kpa onnection Pipe (OD) inch Maximun WPD MPa 1.0 Length mm Width mm 2260 Height* mm 2460 Transport kg Operation kg Notes: Nominal cooling conditions: EWT/LWT 12/7 ; ambient D temperature is 35 Nominal heating conditions: EWT/LWT 40/45 ; ambient D temperature is 7, ambient W temperature is 6 The transport weight including steel packaging weight; The operation weight including the weight of the water inside water-side heat exchanger, excluding steel packaging weight. *Unit is standard with 100mm base while shipping. 6

7 McQuay ir-ooled Screw hiller/heat Pump McQuay Single-Screw Heat Pump Unit MHS-FE ST kw Nominal ooling apacity 10 4 kcal/h ompressor Power Input (ooling) kw kw Nominal Heating apacity 10 4 kcal/h ompressor Power Input (Heating) kw Power Supply 380V/3N~/50Hz apacity Steps 10%~100% 5%~100% Refrigerant ompressor ir-side Heat Exchanger Fan Water-side Heat Exchanger Unit Dimensions Weight Type R134a urcuit No. 1 2 Flow ontrol Type EXV Positive Displacement Semi-hermetic Single-screw Quantity 1 2 Startup ooling Type Type Star Delta Liquid Injection ooling rossed Fin and Tube Efficient Spiral xial Fan Quantity n ir Flow x10 4 m 3 /h Motor Power Input kw Type Water Flow Rate (ooling) Water Flow Rate (Heating) Shell and Tube Heat Exchanger m 3 /h m 3 /h Water Resistance kpa onnection Pipe (OD) inch Maximun WPD MPa 1.0 Length mm Width mm 2260 Height* mm 2460 Transport kg Operation kg Notes: Nominal cooling conditions: EWT/LWT 12/7 ; ambient D temperature is 35 Nominal heating conditions: EWT/LWT 40/45 ; ambient D temperature is 7, ambient W temperature is 6 The transport weight including steel packaging weight; The operation weight including the weight of the water inside water-side heat exchanger, excluding steel packaging weight. *Unit is standard with 100mm base while shipping. 7

8 McQuay ir-ooled Screw hiller/heat Pump McQuay Single-Screw hiller Unit MS-FE ST Nominal ooling apacity ompressor Power Input (ooling) Power Supply kw kcal/h kw V/3N~/50Hz apacity Steps 10%~100% 5%~100% Refrigerant Type R134a urcuit No. 1 2 Flow ontrol EXV Type Positive Displacement Semi-hermetic Single-screw ompressor ir-side Heat Exchanger Fan Water-side Heat Exchanger Unit Dimensions Weight Quantity 1 2 Startup ooling Type Type Star Delta Liquid Injection ooling rossed Fin and Tube Efficient Spiral xial Fan Quantity n ir Flow x10 4 m 3 /h Motor Power Input Water Flow Rate (ooling) Water Resistance onnection Pipe (OD) Maximun WPD Type kw Shell and Tube Heat Exchanger m 3 /h kpa inch MPa 1 Length mm Width mm 2260 Height* mm 2460 Transport kg Operation kg Stand ceessories unit installation manual, certificate, warranty application form, spring, water flow switch Notes: Nominal cooling conditions: EWT/LWT 12/ 7 ; ambient D temperature is 35. The transport weight including steel packaging weight; The operation weight including the weight of the water inside water-side heat exchanger, excluding steel packaging weight. *Unit is standard with 100mm base while shipping. 8

9 McQuay ir-ooled Screw hiller/heat Pump ooling apacity Variation Table (heat pump) Super-high-efficiency series Unit MHS ST3-FE Temperature of outlet chilled water ooling capacity mbient temperature ( ) Input power ooling capacity Input power ooling capacity Input power ooling capacity Input power ooling capacity Input power

10 McQuay ir-ooled Screw hiller/heat Pump ooling apacity Variation Table (heat pump) Unit MHS ST3-FE Temperature of outlet chilled water ooling capacity mbient temperature ( ) Input power ooling capacity Input power ooling capacity Input power ooling capacity Input power ooling capacity Input power

11 McQuay ir-ooled Screw hiller/heat Pump ooling apacity Variation Table (chiller) Unit MS ST3-FE Temperature of outlet chilled water ooling capacity mbient temperature ( ) Input ooling Input ooling Input ooling Input ooling power capacity power capacity power capacity power capacity Input power

12 McQuay ir-ooled Screw hiller/heat Pump Heating apacity Variation Table (heat pump) Super-high-efficiency series Unit MHS ST3-FE Temperature of outlet chilled water Heating apacity mbient temperature ( ) Input power Heating apacity Input power Heating apacity Input power Heating apacity Input power Heating apacity Input power

13 McQuay ir-ooled Screw hiller/heat Pump ooling apacity Variation Table (heat pump) Unit MHS ST3-FE Temperature of outlet chilled water Heating apacity mbient temperature ( ) Input power Heating apacity Input power Heating apacity Input power Heating apacity Input power Heating apacity Input power

14 McQuay ir-ooled Screw hiller/heat Pump Dimensions MHS105ST3-FE Super-high-efficiency series ondenser 3 Size of inlet water pipe of the evaporator 6" (OD168.3 mm) 4 Size of outlet water pipe of the evaporator 6" (OD168.3 mm) 5 ontrol cabinet MHS125ST3-FE ondenser 3 Size of inlet water pipe of the evaporator 6" (OD168.3 mm) 4 Size of outlet water pipe of the evaporator 6" (OD168.3 mm) 5 ontrol cabinet 14

15 McQuay ir-ooled Screw hiller/heat Pump Dimensions MHSST3-FE Super-high-efficiency series ondenser 3 Size of inlet water pipe of the evaporator 6" (OD168.3 mm) 4 Size of outlet water pipe of the evaporator 6" (OD168.3 mm) 5 ontrol cabinet MHS175ST3-FE ondenser 3 Size of inlet water pipe of the evaporator 6" (OD168.3 mm) 4 Size of outlet water pipe of the evaporator 6" (OD168.3 mm) 5 ontrol cabinet 15

16 McQuay ir-ooled Screw hiller/heat Pump Dimensions MHS204ST3-FE Super-high-efficiency series ondenser 3 Size of inlet water pipe of the evaporator 6" (OD168.3 mm) 4 Size of outlet water pipe of the evaporator 6" (OD168.3 mm) 5 ontrol cabinet MHS245ST3-FE ondenser 3 Size of inlet water pipe of the evaporator 8" (OD219.1 mm) 4 Size of outlet water pipe of the evaporator 8" (OD219.1 mm) 5 ontrol cabinet 16

17 McQuay ir-ooled Screw hiller/heat Pump Dimensions MHS291ST3-FE Super-high-efficiency series ondenser 3 Size of inlet water pipe of the evaporator 8" (OD219.1 mm) 4 Size of outlet water pipe of the evaporator 8" (OD219.1 mm) 5 ontrol cabinet MHS348ST3-FE ondenser 3 Size of inlet water pipe of the evaporator 10" (OD273 mm) 4 Size of outlet water pipe of the evaporator 10" (OD273 mm) 5 ontrol cabinet 17

18 McQuay ir-ooled Screw hiller/heat Pump Dimensions MHS105ST3-FE 1 ondenser 3 Size of inlet water pipe of the evaporator 4" (OD114.3 mm) 4 Size of outlet water pipe of the evaporator 4" (OD114.3 mm) 5 ontrol cabinet MHS125ST3-FE 1 ondenser 3 Size of inlet water pipe of the evaporator 4" (OD114.3 mm) 4 Size of outlet water pipe of the evaporator 4" (OD114.3 mm) 5 ontrol cabinet 18

19 McQuay ir-ooled Screw hiller/heat Pump Dimensions MHSST3-FE 1 ondenser 3 Size of inlet water pipe of the evaporator 5" (OD139.7 mm) 4 Size of outlet water pipe of the evaporator 5" (OD139.7 mm) 5 ontrol cabinet MHS175ST3-FE 1 ondenser 3 Size of inlet water pipe of the evaporator 5" (OD139.7 mm) 4 Size of outlet water pipe of the evaporator 5" (OD139.7 mm) 5 ontrol cabinet 19

20 McQuay ir-ooled Screw hiller/heat Pump Dimensions MHS204ST3-FE 1 ondenser 3 Size of inlet water pipe of the evaporator 6" (OD168.3 mm) 4 Size of outlet water pipe of the evaporator 6" (OD168.3 mm) 5 ontrol cabinet MHS220ST3-FE 1 ondenser 3 Size of inlet water pipe of the evaporator 6" (OD168.3 mm) 4 Size of outlet water pipe of the evaporator 6" (OD168.3 mm) 5 ontrol cabinet 20

21 McQuay ir-ooled Screw hiller/heat Pump Dimensions MHS245ST3-FE 1 ondenser 3 Size of inlet water pipe of the evaporator 6" (OD168.3 mm) 4 Size of outlet water pipe of the evaporator 6" (OD168.3 mm) 5 ontrol cabinet MHS291ST3-FE 1 ondenser 3 Size of inlet water pipe of the evaporator 6" (OD168.3 mm) 4 Size of outlet water pipe of the evaporator 6" (OD168.3 mm) 5 ontrol cabinet 21

22 McQuay ir-ooled Screw hiller/heat Pump Dimensions MHS348ST3-FE 1 ondenser 3 Size of inlet water pipe of the evaporator 6" (OD168.3 mm) 4 Size of outlet water pipe of the evaporator 6" (OD168.3 mm) 5 ontrol cabinet MHS380ST3-FE 1 ondenser 3 Size of inlet water pipe of the evaporator 8" (OD219.1 mm) 4 Size of outlet water pipe of the evaporator 8" (OD219.1 mm) 5 ontrol cabinet 22

23 McQuay ir-ooled Screw hiller/heat Pump Dimensions MS105ST3-FE ondenser 3 Size of inlet water pipe of the evaporator 4" (OD114.3 mm) 4 Size of outlet water pipe of the evaporator 4" (OD114.3 mm) 5 ontrol cabinet MS125ST3-FE ondenser 3 Size of inlet water pipe of the evaporator 4" (OD114.3 mm) 4 Size of outlet water pipe of the evaporator 4" (OD114.3 mm) 5 ontrol cabinet 23

24 McQuay ir-ooled Screw hiller/heat Pump Dimensions MSST3-FE ondenser 3 Size of inlet water pipe of the evaporator 5" (OD139.7 mm) 4 Size of outlet water pipe of the evaporator 5" (OD139.7 mm) 5 ontrol cabinet MS175ST3-FE ondenser 3 Size of inlet water pipe of the evaporator 5" (OD139.7 mm) 4 Size of outlet water pipe of the evaporator 5" (OD139.7 mm) 5 ontrol cabinet 24

25 McQuay ir-ooled Screw hiller/heat Pump Dimensions MS204ST3-FE ondenser 3 Size of inlet water pipe of the evaporator 6" (OD168.3 mm) 4 Size of outlet water pipe of the evaporator 6" (OD168.3 mm) 5 ontrol cabinet MS220ST3-FE ondenser 3 Size of inlet water pipe of the evaporator 6" (OD168.3 mm) 4 Size of outlet water pipe of the evaporator 6" (OD168.3 mm) 5 ontrol cabinet 25

26 McQuay ir-ooled Screw hiller/heat Pump Dimensions MS245ST3-FE ondenser 3 Size of inlet water pipe of the evaporator 6" (OD168.3 mm) 4 Size of outlet water pipe of the evaporator 6" (OD168.3 mm) 5 ontrol cabinet MS291ST3-FE ondenser 3 Size of inlet water pipe of the evaporator 6" (OD168.3 mm) 4 Size of outlet water pipe of the evaporator 6" (OD168.3 mm) 5 ontrol cabinet 26

27 McQuay ir-ooled Screw hiller/heat Pump Dimensions MS348ST3-FE ondenser 3 Size of inlet water pipe of the evaporator 6" (OD168.3 mm) 4 Size of outlet water pipe of the evaporator 6" (OD168.3 mm) 5 ontrol cabinet MS380ST3-FE ondenser 3 Size of inlet water pipe of the evaporator 8" (OD219.1 mm) 4 Size of outlet water pipe of the evaporator 8" (OD219.1 mm) 5 ontrol cabinet 27

28 McQuay ir-ooled Screw hiller/heat Pump Dimensions MS400ST3-FE ondenser 3 Size of inlet water pipe of the evaporator 8" (OD219.1 mm) 4 Size of outlet water pipe of the evaporator 8" (OD219.1 mm) 5 ontrol cabinet MS450ST3-FE ondenser 3 Size of inlet water pipe of the evaporator 8" (OD219.1 mm) 4 Size of outlet water pipe of the evaporator 8" (OD219.1 mm) 5 ontrol cabinet 28

29 McQuay ir-ooled Screw hiller/heat Pump Foundation drawing MHS105ST3-FE / MHS125ST3-FE Super-high-efficiency series ase of the unit earing capacity of spring (kg) MHS105ST3-FE MHS125ST3-FE MHSST3-FE ase of the unit earing capacity of spring (kg) MHSST3-FE MHS175ST3-FE ase of the unit earing capacity of spring (kg) D MHS175ST3-FE

30 McQuay ir-ooled Screw hiller/heat Pump Foundation drawing MHS204ST3-FE / MHS245ST3-FE Super-high-efficiency series ase of the unit earing capacity of spring (kg) D E F MHS204ST3-FE MHS245ST3-FE MHS291ST3-FE ase of the unit earing capacity of spring (kg) D E F MHS291ST3-FE MHS348ST3-FE ase of the unit earing capacity of spring (kg) D E F H I MHS348ST3-FE

31 McQuay ir-ooled Screw hiller/heat Pump Foundation drawing MHS105ST3-FE ase of the unit earing capacity of spring (kg) MHS105ST3-FE MHS125ST3-FE ase of the unit earing capacity of spring (kg) MHS125ST3-FE MHSST3-FE ase of the unit earing capacity of spring (kg) MHSST3-FE

32 McQuay ir-ooled Screw hiller/heat Pump Foundation drawing MHS175ST3-FE / MHS204ST3-FE ase of the unit earing capacity of spring (kg) MHS175ST3-FE MHS204ST3-FE MHS220ST3-FE ase of the unit D D earing capacity of spring (kg) D MHS220ST3-FE MHS245ST3-FE ase of the unit D E F D E F earing capacity of spring (kg) D E F MHS245ST3-FE

33 McQuay ir-ooled Screw hiller/heat Pump Foundation drawing MHS291ST3-FE ase of the unit D E F D E F earing capacity of spring (kg) D E F MHS291ST3-FE MHS348ST3-FE ase of the unit D E F D E F earing capacity of spring (kg) D E F MHS348ST3-FE MHS380ST3-FE ase of the unit D E F D E F earing capacity of spring (kg) D E F MHS380ST3-FE

34 McQuay ir-ooled Screw hiller/heat Pump Foundation drawing MS105ST3-FE ase of the unit earing capacity of spring (kg) MS105ST3-FE MS125ST3-FE ase of the unit earing capacity of spring (kg) MS125ST3-FE MSST3-FE ase of the unit earing capacity of spring (kg) MSST3-FE

35 McQuay ir-ooled Screw hiller/heat Pump Foundation drawing MS175ST3-FE ase of the unit earing capacity of spring (kg) MS175ST3-FE MS204ST3-FE ase of the unit earing capacity of spring (kg) MS204ST3-FE MS220ST3-FE ase of the unit D D earing capacity of spring (kg) D MS220ST3-FE

36 McQuay ir-ooled Screw hiller/heat Pump Foundation drawing MS245ST3-FE ase of the unit D E F D E F earing capacity of spring (kg) D E F MS245ST3-FE MS291ST3-FE ase of the unit D E F D E F earing capacity of spring (kg) D E F MS291ST3-FE MS348ST3-FE ase of the unit D E F D E F earing capacity of spring (kg) D E F MS348ST3-FE

37 McQuay ir-ooled Screw hiller/heat Pump Foundation drawing MS380ST3-FE ase of the unit D E F D E F earing capacity of spring (kg) D E F MS380ST3-FE MS400ST3-FE ase of the unit D E F D E F earing capacity of spring (kg) D E F MS400ST3-FE MS450ST3-FE ase of the unit D E F H I D E F H I earing capacity of spring (kg) D E F H I MS450ST3-FE

38 McQuay ir-ooled Screw hiller/heat Pump Requirement for Unit Maintenance Space Requirement for Unit Installation Space Notes: During the installation of the unit: (1) If the wall height H > 2.5 m, the distance between the unit and the wall L H m; (2) If 1.1 m wall height H 2.5 m, L 2.5 m; (3) If wall height H < 1.1 m, L 1.5 m. If multiple units are installed, each unit must have sufficient space for maintenance. 38

39 McQuay ir-ooled Screw hiller/heat Pump Operation limits ooling ST Heating mbient Maximum Temperature ( ) mbient Minimum Temperature ( ) 5-10 Outlet Maximum Water Temperature Of Water Side ( ) Outlet Minimun Water Temperature Of Water Side (Excluding Ethylene Glycol) ( ) Outlet Minimun Water Temperature Of Water Side (Including Ethylene Glycol) ( ) Maximun Temperature Difference ( ) Minimun Temperature Difference ( ) 4 4 Note: If special application requirement is needed, please contact McQuay. Water pressure drop of the unit Super-high-efficiency series Water pressure drop (Kpa) Water pressure drop (Kpa) Water flow (m 3 /h) Water flow (m 3 /h) 39

40 McQuay ir-ooled Screw hiller/heat Pump Electrical specifications Super-high-efficiency series Quantity ompressor Fan Nominal operating current Fuse specification () Quantity Nominal current () per pcs ooling () Heating () Maximum operating current () Startup current () MHS105ST3-FE MHS125ST3-FE MHSST3-FE MHS175ST3-FE MHS204ST3-FE 2 315* MHS245ST3-FE 2 355* MHS291ST3-FE 2 425* MHS348ST3-FE 2 500* Quantity ompressor Fan Nominal operating current Fuse specification () Quantity Nominal current () per pcs ooling () Heating () Maximum operating current () Startup current () MHS105ST3-FE MHS125ST3-FE MHSST3-FE MHS175ST3-FE MHS204ST3-FE MHS220ST3-FE MHS245ST3-FE 2 355* MHS291ST3-FE 2 355/ MHS348ST3-FE 2 400* MHS380ST3-FE 2 425* Quantity ompressor Fuse specification () Quantity Fan Nominal current () per pcs Nominal operating current ooling () Maximum operating current () Startup current () MS105ST3-FE MS125ST3-FE MSST3-FE MS175ST3-FE MS204ST3-FE MS220ST3-FE MS245ST3-FE 2 355* MS291ST3-FE 2 355/ MS348ST3-FE 2 400* MS380ST3-FE 2 425* MS400ST3-FE 2 500* MS450ST3-FE 2 500* Notes: The maximum operating current in the above table refers to the maximum operating current during cooling or heating within the operation range. Working conditions for the nominal operating current: During cooling, the ambient temperature for dry bulb is 35, and the temperature of inlet/outlet chilled water is 12 /7. During heating, the ambient temperature for dry bulb is 7, the temperature for wet bulb is 6, and the temperature of inlet/outlet hot water is 40 /45. Inter-phase unbalance range: 2% Power supply voltage: 380 V±10% 40

41 McQuay ir-ooled Screw hiller/heat Pump On-site wiring diagram Incoming lines of main power supply Isolation swi ontrol cabinet of the unit Incoming circuit breaker ottom incoming lines of main power supply To null line To earth line M3 terminal block ontrol cabinet of the unit Water pump control output Remote mode selection Remote startup/shutdown Failure signal of system 2 Failure signal of system 1 ommon terminal Failure signal of the unit Water flow switch Notes: The wiring of the dashed part must be completed by the customer. The customer is advised to configure an outdoor incoming circuit breaker. The selected external wires and circuit breakers for all units must be larger than the maximum operating current of the units, and furthermore, they will not cause malfunction conditions due to start current. Due to the impact of layout and length, supplies cannot provide details about the main power wiring. Please refer to relevant materials. 41

42 McQuay ir-ooled Screw hiller/heat Pump On-site wiring diagram No. Signal Signal type Type 1 Unit failure Passive dry contact output For failure signal output of the unit (Figure 1) 2 Water pump control output Passive dry contact output For water pump control output (Figures 2 and 3) 3 Water flow switch Passive dry contact input For detecting water flow of the unit (Figure 4) 4 Remote startup/shutdown Passive dry contact input For remote startup/shutdown of the unit (Figure 5) 5 Remote mode selection Passive dry contact input For remote mode selection of the unit (Figure 6) 6 System failure signal 1 Passive dry contact output For failure signal output of the unit (Figure 7) 7 System failure signal 2 Passive dry contact output For failure signal output of the unit (Figure 8) ontrol cabinet M3(25) M3(26) Terminal block 220 V alarm indicator ~ power 220V~/50Hz ontrol cabinet M3(58) M3(59) Terminal block Remote switch of the unit Figure 1 Figure 5 ontrol cabinet M3(401) M3(402) Terminal block Normally-close point of water pump overload relay power 220V~/50Hz Water pump contactor (with a coil voltage of 220 V) ~ ontrol cabinet M3(60) M3(61) Terminal block Remote mode selection switch Figure 2 Figure 6 M3(401) M3(50) ontrol cabinet M3(402) Terminal block Normally-close point of water pump overload relay Intermediate relay ~ power 220V~/50Hz ontrol cabinet M3(60+) Terminal block 220 V alarm indicator ~ power 220V~/50Hz Figure 7 ~ power 380V~/50Hz Water pump contactor (with a coil voltage of 220 V) Figure 3 ontrol cabinet M3(8) M3(23) Terminal block F116 Water flow switch ontrol cabinet M3(50) M3(73) Terminal block 220 V alarm indicator ~ power 220V~/50Hz Figure 4 Figure 8 Notes: Operating signals of the unit come from the operating signals of the water pump. If M3 (401) and M3 (402) are externally connected to a water pump contactor, the operating signals of unit come from the normally-open contact of the contactor. When the unit is in the remote startup/shutdown mode, switch Q0 in the control cabinet of the unit must be set to closed. It can be controlled by connecting a remote switch to M3 (58) and M3 (59). The short contact tag between M3 (58) and M3 (59) must be removed. When the unit is in the remote control mode, switch Q8 must be set to Heating. It can be controlled by connecting a remote switch to M3 (60) and M3 (61). The short contact tag between M3 (60) and M3 (61) must be removed. The failure and water pump output contact can bear an current of only 230 V. If the water pump contactor uses a 380 V coil, conversion is required. See Figure 3. 42

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44 Literature NO.: TM-MS-FST_R134a_2012 Supercedes: N/ Part No.: M EMS Test NS L McQuay International +1 (800) While utmost care is taken in ensuring that all details in the publication are correct at the time of going to press, we are constantly striving for improvement and therefore reserve the right to alter model specifications and equipment without notice. Details of specifications and equipment are also subject to change to suit local conditions and requirements and not all models are available in every market.