CRE-FCY 2230÷21430

Home Montair Products Aircooled liquid Chillers Aircooled liquid Chillers Free-Cooling CRE-FCY 2230÷21430
CRE-FCY 2230÷21430
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CRE-FCY 2230÷21430

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-FCY 2230÷21430 series, with R134a refrigerant and Free-Cooling technology, are specifically designed to maximize the energy efficiency on cooling of big size data centres.
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.
 
CRE-FCJ 2230÷21430
On request, units can be supplied with R513A refrigerant.

Versions

  • CRE-FCY - 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.
  • R134a refrigerant. On request R513A 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
22302270232023802420249025802720285021050211802129021430
CoolingCooling capacity (1)kW2172553153824224675687128501011114812951467
Absorbed power (1)kW7788105139147170192242290345400451498
EER (1)2,822,903,002,752,872,752,962,942,932,932,872,872,95
Cooling (EN14511)SEPR (2)5,005,045,035,035,645,575,765,745,505,575,505,625,64
Free-Cooling cycleAir temperature (3)°C-2,5-2,0-2,0-4,5-3,7-4,0-3,5-4,3-4,3-4,6-4,7-4,1-3,9
Absorbed power (3)kW8121212121620202222252936
CompressorQuantityn°2222222222222
Refrigerant circuitsn°2222222222222
Capacity stepsn°SteplessSteplessSteplessSteplessSteplessSteplessSteplessSteplessSteplessSteplessSteplessSteplessStepless
Water flowl/s11,2013,1516,2519,7121,7724,0929,3136,7443,8652,1659,2466,8275,70
Pressure dropskPa10714215414916610898138141141174194259
Water connectionsDN100100100125125125150150150200200200200
Electrical characteristicsPower supplyV/Ph/Hz400/3/50400/3/50400/3/50400/3/50400/3/50400/3/50400/3/50400/3/50400/3/50400/3/50400/3/50400/3/50400/3/50
Max. running currentA192206247325561455467584673821100111201279
Max. starting currentA4124265176786966136257248271049133814971772
Unit with tank and pumpPump available static pressurekPa175140135130105155205145125140170125115
Tank water volumel1100110011001100110011002000200020002000---------
Water connectionsDN100100100125125125150150150200200200200
Sound pressureSTD version (4)dB(A)75757676767777777979797980
With SL accessory (4)dB(A)72727373737474747676767677
WeightsTransport weight (5)kg325033203620380541804510531068207710860595901007011750
Operating weight (5)kg4950352038704060453048505700742083509410105501090012970

Dimensions

22302270232023802420249025802720285021050211802129021430
LSTDmm4400440044004400555055506700100501005010050100501110013400
WSTDmm2200220022002200220022002200220022002200220022002200
HSTDmm2360236023602360236023602360236023602750275027502750

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.