CRE-FCH 2230÷21220

Home Montair Products Aircooled liquid Chillers Aircooled liquid Chillers Free-Cooling CRE-FCH 2230÷21220
CRE-FCH 2230÷21220
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CRE-FCH 2230÷21220

Aircooled liquid Chillers Free-Cooling with axial fans, Screw compressors and shell and tube exchanger

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The liquid Chillers of the CRE-FCH 2230÷21220 series, with HFO-R1234ze refrigerant and Free-Cooling technology, are specifically designed to maximize the energy efficiency on cooling of big size data centres.
The latest generation refrigerant HFO-R1234ze, with GWP<1 (Global Warming Potential), is the most environmentally sustainable refrigerant on the market, and meets the strictest international environmental regulations.
During the cold months, in FREE-COOLING operating mode, the liquid returning from the system is cooled directly by forced convection of outdoor air through the condensing coil, thus saving energy by not operating the unit's Screw compressors. A 3-Way valve system is controlled by the electronic microprocessor controller, allowing functioning in CHILLER, FREE-COOLING or MIXED (simultaneously CHILLER and FREE-COOLING) modes.
Units are featured as standard with an electronic proportional device that ensures efficient continuous functioning of the unit with outside air temperature down to –20 °C.

Versions

  • CRE-FCH - Cooling only

Features

  • Structure with supporting frame, made of galvanised sheet metal with additional protection provided by polyester powder coating.
  • Screw compressors with built-in oil separator, suction filter, crankcase heater, oil sight glass, thermal protection and stepless capacity steps.
  • Axial fans directly coupled to an electric motor with external rotor.
  • Condenser made of copper tubes and aluminium finned coils combined with FREE-COOLING coils.
  • Shell and tube evaporator with two independent circuits on the refrigerant side and one on the water side, complete with water differential pressure switch.
  • Cooling circuit shut-off valves on discharge and liquid line.
  • Electronic expansion valve.
  • Electronic high and low pressure gauges.
  • HFO-R1234ze refrigerant.
  • Electrical board includes: main switch with door safety interlock, fuses, thermal protection relays for compressors and thermocontacts for fans.
  • Condensing Control is included: electronic proportional device that ensures efficient and continuous functioning of the unit with outside air temperature down to –20 °C. It also allows to reduce the sound level especially at night. It consists of a fans speed controller with continuous speed regulation, high and low pressure transducers on cooling circuit and an electrical heater on electrical board.
  • Microprocessor control and regulation system.

Factory fitted accessories

  • IM Automatic circuit breakers
  • DPS Double power supply
  • SL Unit silencement
  • EC EC Inverter fans
  • ECH EC Inverter fans with high available static pressure
  • TX Coil with pre-coated fins
  • SP Inertial tank
  • PU Single circulating pump
  • PUI Inverter single circulating pump
  • PD Double circulating pump
  • PDI Inverter double circulating pump
  • SPU Inertial tank and single circulating pump
  • SPUI Inertial tank and Inverter single circulating pump
  • SPD Inertial tank and double circulating pump
  • SPDI Inertial tank and Inverter double circulating pump
  • II Inverter on one compressor and soft start for other compressors
  • ID Inverter on all compressors
  • SS Soft start
  • WM Web Monitoring - Wireless remote monitoring (GPRS/EDGE/3G/TCP-IP)
  • IS Modbus RTU protocol, RS485 serial interface
  • IST Modbus TCP/IP protocol, Ethernet port
  • ISB BACnet MSTP protocol, RS485 serial interface
  • ISBT BACnet TCP/IP protocol, Ethernet port
  • ISL LonWorks protocol, FTT-10 serial interface
  • ISS SNMP protocol, Ethernet port
  • IAV Remote set-point, 0-10 V signal
  • IAA Remote set-point, 4-20 mA signal
  • IAS Remote signal for second set-point activation
  • IDL Demand limit from digital input
  • CP Potential free contacts

Loose accessories

  • MN High and low pressure gauges
  • CR Remote control panel
  • RP Coils protection metallic guards
  • AG Rubber shock absorbers
  • AM Spring shock absorbers
  • FL Flow switch
22302300235024202460253026302700282029302112021220
CoolingCooling capacity (1)kW25332538344248556766074787597311401249
Absorbed power (1)kW6990111130148164194212248281351376
EER (1)3,673,613,453,403,283,463,403,523,533,463,253,32
Cooling (EN14511)SEPR (2)5,595,575,525,635,505,675,635,665,715,745,505,50
Free-Cooling cycleAir temperature (3)°C4,02,03,33,01,51,52,51,01,51,51,02,0
Absorbed power (3)kW10,810,814,414,414,418,021,621,621,625,228,832,4
CompressorQuantityn°222222222222
Refrigerant circuitsn°222222222222
Capacity stepsn°SteplessSteplessSteplessSteplessSteplessSteplessSteplessSteplessSteplessSteplessSteplessStepless
Water flowl/s12,0915,5318,3021,1223,1727,0931,5335,6941,8146,4954,4759,67
Pressure dropskPa8410515612814484114134107118150184
Water connectionsDN100100100125125125150150150150200200
Electrical characteristicsPower supplyV/Ph/Hz400/3/50400/3/50400/3/50400/3/50400/3/50400/3/50400/3/50400/3/50400/3/50400/3/50400/3/50400/3/50
Max. running currentA211275327355413467520605670731764831
Max. starting currentA299417496586642723791904947109112061244
Unit with tank and pumpPump available static pressurekPa1401101051251551951409015012090100
Tank water volumel200020002000200020002000200020003000---
Water connectionsDN100100100125125125150150150150200200
Sound pressureSTD version (4)dB(A)757676777778787880818282
With SL accessory (4)dB(A)727373747475757577787979
WeightsTransport weight (5)kg31503420402044104560544068007280842089001069011570
Operating weight (5)kg339037204400485050406010742079809420100001189012940

Dimensions

22302300235024202460253026302700282029302112021220
LSTDmm440044005550555055506700100501005010050100501225013400
WSTDmm220022002200220022002200220022002200220022002200
HSTDmm236023602360236023602360236023602750275027502750

Notes

  • 1 Chilled water (with ethylene glycol at 30%) from 18 to 13 °C, ambient air temperature 35 °C.
  • 2 Efficienza energetica stagionale di raffreddamento di processo ad alta temperatura secondo il Regolamento UE n. 2016/2281.
  • 3 Ambient air temperature at which the cooling capacity indicated in point (1) is reached.
  • 4 Sound pressure level measured in free field conditions at 1 m from the unit. According to ISO 3744.
  • 5 Unit without tank and pump.