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CHA/TTH/FC 1301-1÷4904-1

AIRCOOLED LIQUID CHILLERS FREE-COOLING WITH AXIAL FANS, TURBOCOR (MAGNETIC LEVITATION) COMPRESSORS AND FLOODED SHELL AND TUBE EXCHANGER

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The innovative CHA/TTH/FC 1301-1÷4904-1 units, with HFO-R1234ze refrigerant and FREE-COOLING technology, are designed to provide an effective solution to installation requirements of large areas, both commercial and industrial, where the production of chilled water is required in continuous service throughout the year. The latest generation refrigerant HFO-R1234ze, with GWP<1 (Global Warming Potential), is the most environmentally sustainable refrigerant on the market, and meets the strictest international environmental regulations. Furthermore, thanks to Turbocor compressors, the units perform with top efficiency at partial loads, low inrush currents, an excellent silent functioning and reduced weight. The unit, designed with specific attention to every aspect of construction and combined with the use of TURBOCOR dynamic partialization oil-free magnetic levitation compressors - managed by the TURBOSOFT self-adaptive electronic control - and with the use of flooded shell and tube evaporator, achieves a high rate of energy efficiency, with unequaled SEPR values, with minimum water content, and an excellent silent functioning. Depending on outside air temperature, the microprocessor controller manages the functioning in CHILLER, FREE-COOLING or MIXED (both CHILLER and FREE-COOLING) mode.
Are available as option the new EC Inverter fans with high available static pressure and efficiency.
The units are compliant to the 2021 ErP Regulation for process cooling application.

Versions

  • CHA/TTH/FC - Cooling only

Power range

  • 279-1386 kW
  • 79.0-394 Ton

Features

  • Structure with supporting frame, made of galvanised sheet metal with additional protection provided by polyester powder coating.
  • Semi-hermetic centrifugal compressors with dual Turbocor turbine, oil free, magnetic rising rotor, thermal protection, continuous capacity adjustment system thanks to built-in INVERTER, automatic anti-cavitation system. The power circuit of the compressor is fitted with a set of electrolytic condensers to control the rising in the event of a power failure, reactor for the power factor correction, EMI filter for electromagnetic compatibility.
  • 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.
  • High efficiency flooded shell and tube type evaporator, with one independent circuit on the refrigerant side and one on the water side, complete with water differential pressure switch.
  • Cooling circuit shut-off valves on suction, discharge and liquid line.
  • Electronic expansion valve.
  • Electronic high and low pressure gauges.
  • HFO-R1234ze refrigerant.
  • Electrical board includes: main on-off switch with door lock, fuses, electronic/digital overload device to protect the compressors and thermocontacts for fans, interface relay and terminals for external connections.
  • 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.
  • TURBOSOFT control and regulation system, equipped with RS485 serial interface, can be supplied with an optional Web Monitoring device for remote monitoring via GPRS/EDGE/3G/TCP-IP network.

Factory fitted accessories

  • IM Automatic circuit breakers
  • EC EC Inverter fans
  • ECH EC Inverter fans with high available static pressure
  • HRT/P Total heat recovery in parallel
  • TX Coil with pre-coated fins
  • PU Single circulating pump
  • PD Double circulating pump
  • TS Touch Screen Interface
  • WM Web Monitoring - Wireless remote monitoring (GPRS/EDGE/3G/TCP-IP)
  • 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
1301-11701-12802-13502-14103-14403-14904-12802-23502-24904-2
CoolingCooling capacity (1)kW279348554698837104013865546981386
Absorbed power (1)kW7595160193242283387160193387
EER (1)3,723,663,463,623,463,673,583,463,623,58
Cooling (EN14511)Cooling capacity (1)kW277345551694831103113665516941366
Absorbed power (1)kW7798163198248292407163198407
EER (1)3,603,523,383,513,353,533,363,383,513,36
SEPR (2)7,357,307,137,257,427,437,437,137,257,45
Free-Cooling cycleAir temperature (3)°C3,02,51,5-1,00,00,5-1,01,5-1,0-1,0
Absorbed power (3)kW10,814,421,621,625,232,436,021,621,636,0
CompressorQuantity1122334224
Refrigerant circuits1111111222
Capacity stepsSteplessSteplessSteplessSteplessSteplessSteplessSteplessSteplessSteplessStepless
Water flowl/s14,4217,9828,6336,0743,2653,7571,6328,6336,0771,63
Pressure dropskPa8810378941011422537894253
Water connectionsDN100100125125150150150125125150
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 currentA173181347347505520678347347678
Max. starting currentA2533199199357372530199199530
Unit with pumpPump available static pressurekPa140125110180150150160110180160
Water connectionsDN100100150150150150200150150200
Sound pressureSTD version (4)dB(A)69707171717172717172
WeightsTransport weightkg362037305560564078908910108005740582011000
Operating weightkg390040306040616086109810118406220634012040

Dimensions

1301-11701-12802-13502-14103-14403-14904-12802-23502-24904-2
LSTDmm5000500072007200840010050117007200720011700
WSTDmm2200220022002200220022002200220022002200
HSTDmm2360236023602360275027502750236023602750

Notes

  • 1 Chilled water (with ethylene glycol at 30%) from 15 to 10 °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 wich 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.