TWH 212÷342 S/K/P

Home KTK Products Top line - Liquid Chillers and Heat Pumps >200kW WATERCOOLED WATER CHILLERS AND HEAT PUMPS TWH 212÷342 S/K/P
TWH 212÷342 S/K/P

TWH 212÷342 S/K/P

Watercooled liquid Chillers and Heat Pumps with Scroll compressors and plate exchangers

_icona_clint_solo_raffreddamento_2024.png _icona_clint_solo_raffreddamento-riscaldamento_2024.png _icona_clint_compressore_scroll_2024.png _icona_clint_exchanger_plate_2024.png _icona_clint_refrigerant_R410A_2024.png _icona_clint_refrigerant_R452B_2024.png _icona_clint_refrigerant_R454B_2024.png

The TWH 212÷342 S/K/P series liquid Chillers and Heat Pumps, with R410A refrigerant, are designed for medium and large domestic or industrial systems which require medium-high power, space-saving units and quiet operation. 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.
The units are characterized by multi-compressor design on double cooling circuit, to reach high energy performances, reduction of current at start-up, elimination of inertial tanks and excellent silent functioning. The use of components built in large series makes them highly reliable and the management of a high number of compressors allows increased life span with reduction of machine stopping risks and easier maintenance operations.
The units are compliant to the ErP Regulation.

On request, units can be supplied with R452B or R454B refrigerant.

Versions

  • TWH - Cooling only
  • TWH/WP - Reversible Heat Pump
  • TWH/SSL - Super silenced cooling only
  • TWH/WP/SSL - Super silenced reversible Heat Pump

Power range

  • 224-383 kW
  • 64,0-109 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.
  • 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 302÷36012-P 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, thermal protection relays for compressors, interface relay and terminals for external connections.
  • Microprocessor control and regulation system.

Factory fitted accessories

  • IS Modbus RTU protocol, RS485 serial interface
  • MN High and low pressure gauges
  • IVV 0-10V signal for the management of the electronic pressostatic valve source side
  • IDL Demand limit from digital input
  • IAS Remote signal for second set-point activation
  • IAA Remote set-point, 4-20mA signal
  • IAV Remote set-point, 0-10V signal
  • ISS SNMP protocol, Ethernet port
  • ISBT BACnet IP protocol, Ethernet port
  • ISB BACnet MSTP protocol, RS485 serial interface
  • IST Modbus TCP/IP protocol, Ethernet port
  • IM Automatic circuit breakers
  • SS Soft start
  • FE Antifreeze heater for evaporator
  • RT Total heat recovery
  • DS Desuperheater
  • BT Low water temperature kit
  • PV3 3-Way electronic pressostatic valve
  • PV2 2-Way electronic pressostatic valve
  • RFL Cooling circuit shut-off valve on liquid line
  • RFM Cooling circuit shut-off valve on discharge line
  • SL Unit silencement

Loose accessories

  • CR Remote control panel
  • AG Rubber shock absorbers
  • AM Spring shock absorbers