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TWA/FC 212÷1102 S/K/P

TWA/FC 212÷1102 S/K/P

Air cooled liquid chillers Free-Cooling with axial fans, Scroll compressors and plate exchanger

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  • Fans: Axial, EC axial
  • Compressors: Scroll
  • Refrigerant: R410A, R452B, R454B
  • Exchangers: Plate

The units are compliant to the 2021 ErP Regulation for process cooling application.
On request, units can be supplied with R452B or R454B refrigerant.

Versions

  • TWA/FC - Cooling only

Power range

  • 208-1102 kW
  • 59,0-313 Ton

Features

  • Structure with supporting frame, made of galvanised sheet metal with additional protection provided by polyester powder coating.
  • 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.
  • Scroll compressors with oil sight glass, internal overheat protection and crankcase heater.
  • 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 302÷1102 models.
  • Electronic expansion valve.
  • Electronic high and low pressure gauges.
  • R410A refrigerant. On request R452B or R454B 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
  • RE Adjustable minimum/maximum voltage and phase control relay
  • SL Unit silencement
  • RFM Cooling circuit shut-off valve on discharge line
  • RFL Cooling circuit shut-off valve on liquid line
  • BT Low water temperature kit
  • EC EC Inverter fans
  • ECH EC Inverter fans with high available static pressure
  • TX Coil with pre-coated fins
  • PS Single circulating pump
  • PSI Inverter single circulating pump
  • PD Double circulating pump
  • PDI Inverter double circulating pump
  • GS Single circulating pump gasket for glycol >30%
  • GD Double circulating pump gaskets for glycol >30%
  • SS Soft start
  • WM Web Monitoring - Wireless remote monitoring (4G)
  • IS Modbus RTU protocol, RS485 serial interface
  • IST Modbus TCP/IP protocol, Ethernet port
  • ISBT BACnet IP protocol, Ethernet port
  • ISB1 BACnet MSTP protocol, RS485 serial interface, BTL certified
  • ISBT1 BACnet IP protocol, Ethernet port, BTL certified
  • ISS SNMP protocol, Ethernet port
  • MTS Master/Slave Network Management
  • IAV Remote set-point, 0-10V signal
  • IAA Remote set-point, 4-20mA signal
  • IAS Remote signal for second set-point activation
  • IDL Demand limit from digital input
  • MN High and low pressure gauges

Loose accessories

  • CR Remote control panel
  • RP Coils protection metallic guards
  • AG Rubber shock absorbers
  • AM Spring shock absorbers