CRE-EY 2280÷21290

Home Montair Products Aircooled liquid Chillers Aircooled liquid Chillers CRE-EY 2280÷21290
CRE-EY 2280÷21290
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CRE-EY 2280÷21290

A CLASS energy efficiency aircooled liquid Chillers with axial fans, (Inverter) Screw compressors, Microchannel condensing coils and shell and tube exchanger

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The CRE-EY 2280÷21290 units in A CLASS energy efficiency, with R410A refrigerant, are specifically designed for big size data centres. They have high EER values due to reduced electrical absorption and a high efficiency of the compressor-exchanger combination.
The Microchannel condensing coils, the mono-Screw compressors with satellite and the new design optimized in every detail ensure the reach of the highest efficiency. Furthermore, accessories as the Inverter control on Screw compressors, on circulating pumps and EC Inverter on fans are also available for getting the highest efficiency at part load. The super silenced version, obtained through acoustic insulation on compressors and wider exchangers, is particularly suitable for installations where extremely quiet operation are essential for the ideal execution of the system.
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-EJ 2280÷21290
On request, units can be supplied with R513A refrigerant.

Versions

  • CRE-EY - Cooling only
  • CRE-EY/SSL - Super silenced cooling only

Power range

  • 312-1.4 kW
  • 89.0-388 Ton

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 aluminium MICROCHANNEL 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
  • TXB Coil with epoxy treatment
  • EW External water connections
  • 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
228023402390245025102650279029602110021290
CoolingCooling capacity (1)kW31237343349956369183599511511363
Absorbed power (1)kW8499116134149183224269308359
Cooling (EN14511)EER (1)3,663,673,613,653,683,673,623,613,653,68
Cooling capacity (1)kW31137143049756068783099011451354
Absorbed power (1)kW85101119136152187229274314368
SEPR (2)5,295,445,415,515,565,585,515,665,725,63
CompressorQuantityn°2222222222
Refrigerant circuitsn°2222222222
Capacity stepsn°SteplessSteplessSteplessSteplessSteplessSteplessSteplessSteplessSteplessStepless
EvaporatorWater flowl/s14,9117,8220,6923,8426,9033,0139,8947,5454,9965,12
Pressure dropskPa42377164504160485669
Water connectionsDN125125150150150150150200200200
Electrical characteristicsPower supplyV/Ph/Hz400/3/50400/3/50400/3/50400/3/50400/3/50400/3/50400/3/50400/3/50400/3/50400/3/50
Max. running currentA208247276316339408500537617724
Max. starting currentA270291352376481519611639679877
Unit with tank and pumpPump available static pressurekPa100120100701401151201006585
Tank water volumel20002000200020002000200030003000------
Water connectionsDN100100100125125150150150200200
Sound pressureSTD version (3)dB(A)75757575767576767677
With SL accessory (3)dB(A)72727272737273737374
SSL version (3)dB(A)656565646565666767---
WeightsTransport weight (4)kg3825328933483707440248025826675067747513
Operating weight (4)kg5825342034903890469051406120739073207970

Dimensions

228023402390245025102650279029602110021290
LSTDmm4400440050005550620067008900111001110011100
SSLmm555055505550670089008900111001110011100---
WSTD/SSLmm2200220022002200220022002200220022002200
HSTDmm2100210021002100210021002100210021002500
SSLmm210021002100210021002100210025002500---

Notes

  • 1 Chilled water 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 Sound pressure level measured in free field conditions at 1 m from the unit. According to ISO 3744.
  • 4 Unit without tank and pump.
  • N.B. (1) Weights of SSL version are specified on technical brochure.