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CREI-E 4225÷6760

A CLASS energy efficiency aircooled liquid Chillers with axial fans, Inverter Scroll compressors, Microchannel condensing coils and plate exchanger

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The CREI-E 4225÷6760 units, with R410A refrigerant, are characterized by the highest efficiency, all in A CLASS energy efficiency, featuring Microchannel condensing coils and Inverter Scroll compressor: an intelligent control module optimizes functioning times and supplied power from the Scroll compressors based on heat load demands in the system. In this way, the machine can obtain high energy yield with decisively elevated SEPR/ESEER/IPLV values, elimination of generated power surges, elimination of inertial accumulation tanks and excellent silent functioning, since the fans adjust their speed to the actual system load, providing benefits especially during the night. The use of components built in large series making them highly reliable and management of an elevated number of compressors allows increased life span and reduction of unit stopping risks: a faulty compressor will not compromise cooler functioning, which will continue to function with decreased power levels. In addition, maintenance operations are decisively reduced due to the high reliability of the machines and their components.
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.


  • CREI-E - Cooling only
  • CREI-E/SSL - Super silenced cooling only

Power range

  • 223-754 kW
  • 63.0-214 Ton


  • Structure with supporting frame, made of galvanised sheet metal with additional protection provided by polyester powder coating.
  • DC INVERTER Scroll and ON-OFF Scroll compressors with oil sight glass, internal overheat protection and crankcase heater.
  • Axial fans directly coupled to an electric motor with external rotor.
  • Condenser made of aluminium MICROCHANNEL coils.
  • Evaporator AISI 316 stainless steel braze welded plates type with two independent circuits on the refrigerant side and one on the water side, complete with water differential pressure switch.
  • Cooling circuit shut-off valve on liquid line in 2075÷4210 models.
  • Electronic expansion valve.
  • Electronic high and low pressure gauges.
  • R410A refrigerant.
  • Electrical board includes: main switch with door safety interlock, fuses or magnetothermic switches, 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
  • TE Electronic expansion valve
  • RFM Cooling circuit shut-off valve on discharge line
  • EC EC Inverter fans
  • ECH EC Inverter fans with high available static pressure
  • TX Coil with pre-coated fins
  • TXB Coil with epoxy treatment
  • EW External water connections
  • SP Inertial tank
  • PU Single circulating pump
  • PS Single circulating pump
  • PSI Inverter single circulating pump
  • PD Double circulating pump
  • PDI Inverter double circulating pump
  • SPU Inertial tank and single circulating pump
  • SPD Inertial tank and double circulating pump
  • SS Soft start
  • 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

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
CoolingCooling capacity (1)kW22326332235439043147251258175448,754,965,673,982,996,9110126140170
Absorbed power (1)kW61,074,091,099,011112213614716621515,316,919,822,825,930,333,739,742,950,4
EER (1)3,663,553,543,583,513,533,473,483,503,513,183,253,313,243,203,203,263,173,263,37
Cooling (EN14511)Cooling capacity (1)kW22226232035338842947051057975148,454,665,273,482,596,4110126140170
Absorbed power (1)kW62,075,092,210011212313814916821715,517,220,323,326,230,834,340,243,551,1
EER (1)3,583,493,473,533,463,493,413,423,453,463,133,173,223,153,143,133,203,123,213,32
SEPR (2)5,495,505,555,575,525,695,845,885,855,845,145,175,095,105,185,185,025,185,225,23
Refrigerant circuits22222222221111111122
Capacity stepsSteplessSteplessSteplessSteplessSteplessSteplessSteplessSteplessSteplessStepless2222233344
EvaporatorWater flowl/s10,6512,5715,3816,9118,6320,5922,5524,4627,7636,022,332,623,133,533,964,635,266,026,698,12
Pressure dropskPa4946444650414145414722295657404147353935
Water connections"G------------------------------1 ½"1 ½"2"2"2 ½"2 ½"2 ½"3"3"3"
Water connectionsDN8080808080150150150150150------------------------------
Electrical characteristicsPower supplyV/Ph/Hz400/3/50400/3/50400/3/50400/3/50400/3/50400/3/50400/3/50400/3/50400/3/50400/3/50400/3/50400/3/50400/3/50400/3/50400/3/50400/3/50400/3/50400/3/50400/3/50400/3/50
Max. running currentA14616519721825122225729130739943455559707890108116136
Max. starting currentA288317380402473408488515588861166168177190235203222269247304
Unit with tank and pumpPump available static pressurekPa------------------------------165150115110135180165170160145
Tank water volumel------------------------------470470470470470470470470660660
Water connections"G------------------------------2 ½"2 ½"2 ½"2 ½"2 ½"2 ½"2 ½"2 ½"2 ½"2 ½"
Unit with pumpPump available static pressurekPa135105120160140130105165150105------------------------------
Water connectionsDN100100100100100150150150150150------------------------------
Sound pressureSTD version (3)dB(A)7072747373737474757661616464656667676767
With SL accessory (3)dB(A)6768707070707171727359596262636465656565
SSL version (3)dB(A)646567666767686970---575760606162636363---
WeightsTransport weightkg1951206422112461251128062868322834163912------------------------------
Transport weight (4)kg------------------------------641661701719844931971111211921428
Operating weightkg1970209022502500255028502920328034803990------------------------------
Operating weight (4)kg------------------------------6606807207408709601000115012301470




  • 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.