CRW 6205÷8340


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The CRW 6205÷8340 series liquid Chillers, with R410A refrigerant, are specifically designed for medium-large size data centres. These units are ideal for indoor installation and, equipped with a self contained structure, they reduce the overall dimensions to a minimum while at the same time making installation and maintenance operations easier. CRW 6205÷8340 is an extremely flexible and reliable machine: an intelligent control module optimizes functioning times and supplied power from the Scroll compressors based on heat load demands in the system and providing elevated energy efficiency. The unit can obtain an high energy yield, elimination of generated power surges and elimination of inertial accumulation tanks. The use of components built in large series, making them highly reliable, and management of an high number of compressors allows increased life span and reduction of unit's stopping risks: a faulty compressor will not compromise cooler functioning, which will continue to work with decreased power levels. In addition, maintenance operations are decisively reduced due to the high reliability of the machines and their components.


  • CRW - Cooling only
  • CRW/SSL - Super silenced cooling only


  • Structure with supporting frame, made of galvanised sheet metal with additional protection provided by polyester powder coating.
  • Scroll compressors with oil sight glass, internal overheat protection and crankcase heater.
  • Condenser AISI 316 stainless steel braze welded plates type with two independent circuits on the refrigerant side and one on the water side.
  • 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 8330÷8340 models.
  • Electronic expansion valve.
  • Electronic high and low pressure gauges.
  • R410A refrigerant.
  • Electrical board includes: main switch with door safety interlock, fuses, thermal protection relays for compressors, interface relay and terminals for external connections.
  • Microprocessor control and regulation system.

Factory fitted accessories

  • IM Automatic circuit breakers
  • DPS Double power supply
  • SL Unit silencement
  • RFM Cooling circuit shut-off valve on discharge line
  • 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
  • PV2 2-Way electronic pressostatic valve
  • PV3 3-Way electronic pressostatic valve
  • AG Rubber shock absorbers
  • AM Spring shock absorbers
CoolingCooling capacity (1)kW247283304326369411
Absorbed power (1)kW515863677683
EER (1)4,844,884,834,874,864,95
Cooling (EN14511)Cooling capacity (1)kW246282302324367409
Absorbed power (1)kW546267718087
EER (1)4,564,554,514,564,594,70
SEPR (2)7,007,177,227,637,297,78
Refrigerant circuits222222
Capacity steps666688
EvaporatorWater flowl/s11,8013,5214,5215,5817,6319,64
Pressure dropskPa666569636954
Water connectionsDN808080808080
CondenserWater flowl/s14,2416,2917,5318,7821,2623,60
Pressure dropskPa829196827465
Water connectionsDN808080808080
Electrical characteristicsPower supplyV/Ph/Hz400/3/50400/3/50400/3/50400/3/50400/3/50400/3/50
Max. running currentA141155165186206227
Max. starting currentA265287298315339359
Sound pressureSTD version (3)dB(A)687071717172
With SL accessory (3)dB(A)646667676768
SSL version (3)dB(A)616263636364
WeightsTransport weightkg113711931213124914721542
Operating weightkg117012301250129015201600




  • 1 Chilled water from 18 to 13 °C, water temperature at the condenser from 30 to 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.
  • N.B. (1) Weights of SSL version are specified on technical brochure.