CRE 6205÷121060

AIRCOOLED LIQUID CHILLERS WITH AXIAL FANS, SCROLL COMPRESSORS AND PLATE EXCHANGER

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CRE 6205÷121060 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. The unit, with R410A refrigerant, features high energy yield, 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 the management of an elevated number of compressors allows increased life span and reduction of machine 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.

Versions

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

Power range

  • 194-1.0 kW
  • 55.0-295 Ton

Features

  • 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.
  • Axial fans directly coupled to an electric motor with external rotor.
  • Condenser made of copper tubes and aluminium finned 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 8330÷121060 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

  • DPS Double power supply
  • SL Unit silencement
  • 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
  • EW External water connections
  • PS Single circulating pump
  • PSI Inverter single circulating pump
  • PD Double circulating pump
  • PDI Inverter 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
6205623062556280833083408375104101045512510125601261512680127701286012950121060
CoolingCooling capacity (1)kW1942172382652913203503824144615085526056908329741039
Absorbed power (1)kW627173809395104111134142156174194223271309344
EER (1)3,133,063,263,313,133,373,373,443,093,253,263,173,123,093,073,153,02
Cooling (EN14511)Cooling capacity (1)kW1932162372642903193483814124595065506036888299711035
Absorbed power (1)kW637274819496106112136144158176196225274312348
EER (1)3,063,003,203,263,093,323,283,403,033,193,203,133,083,063,033,112,97
SEPR (2)5,015,065,115,125,075,075,245,615,555,515,535,625,535,565,555,565,55
CompressorQuantity3+33+33+33+34+44+44+45+55+56+66+66+66+66+66+66+66+6
Refrigerant circuits22222222222222222
Capacity steps6666888881010101010101010
EvaporatorWater flowl/s9,2710,3711,3712,6613,9015,2916,7218,2519,7822,0324,2726,3728,9132,9739,7546,5449,64
Pressure dropskPa3847565046455442514352494035494551
Water connectionsDN808080808080808080808080150150150150150
Electrical characteristicsPower supplyV/Ph/Hz400/3/50400/3/50400/3/50400/3/50400/3/50400/3/50400/3/50400/3/50400/3/50400/3/50400/3/50400/3/50400/3/50400/3/50400/3/50400/3/50400/3/50
Max. running currentA164178191212238258279298350382413474543621685737779
Max. starting currentA28831032334137039040843047951454265371783489310011040
Unit with pumpPump available static pressurekPa200175245220250240215210200200190185180170190165140
Water connectionsDN100100100100100100100100100100100150150150150150150
Sound pressureSTD version (3)dB(A)7070707272727373727375767676767677
With SL accessory (3)dB(A)6767676969696970697072737373737374
SSL version (3)dB(A)646464666565676666676970706970------
WeightsTransport weightkg16541674176319612199245725662610317932943463351736824200451849185044
Operating weightkg16701690178019802220248025902640321033303500356037304260458052385354

Dimensions

6205623062556280833083408375104101045512510125601261512680127701286012950121060
LSTDmm28002800280028004000400040004000500050005000500050006200720072007200
SSLmm280028002800280040004000400040005000500050005000620072007200------
WSTD/SSLmm22002200220022002200220022002200220022002200220022002200220022002200
HSTD/SSLmm21002100210021002100210021002100210021002100210021002100210021002100

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.
  • N.B. (1) Weights of SSL version are specified on technical brochure.