TWV/MC 222÷602 S/H/P/HE

Home KTK Products Top line - Liquid Chillers and Heat Pumps >200kW AIRCOOLED LIQUID CHILLERS AND HEAT PUMPS TWV/MC 222÷602 S/H/P/HE
TWV/MC 222÷602 S/H/P/HE

TWV/MC 222÷602 S/H/P/HE

High energy efficiency aircooled liquid chillers with axial fans, Scroll compressors and plate exchanger

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The high energy efficiency liquid Chillers of the TWV/MC 222÷602 S/H/P/HE series, with HFO-R1234ze refrigerant, are designed to satisfy the needs of medium and wide-sized service sector or industrial ambients.
They are used, combined with Fan Coil units, for the air conditioning of the rooms or to remove the heat developed during industrial processes.
Microchannel condensing coils on standard version provide higher efficiency levels (EER), as they ensure better heat exchange than conventional coils. Copper/aluminum coils are available on dedicated versions. Inverter control is available on circulating pumps and fans (EC Inverter) for a further efficiency improvement.

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.
Are available as option the new EC Inverter fans with high available static pressure and efficiency.
The units are compliant to the ErP Regulation.

Versions

  • TWV/MC - High efficiency cooling only with MICROCHANNEL condensing coils
  • TWV/MC/SSL - High efficiency super silenced cooling only with MICROCHANNEL condensing coils
  • TWV - High efficiency cooling only with CuAl condensing coils
  • TWV/SSL - High efficiency super silenced cooling only with CuAl condensing coils

Power range

  • 213-600 kW
  • 61.0-171 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 a three-phase electric motor with external rotor. A safety fan guard is fitted on the air flow discharge. They are also fitted with an electronic proportional device for continuous and efficient operation of the unit with an outdoor air temperature as low as -20 °C in cooling. It also allows to reduce the sound level, especially at night.
  • Condenser made of aluminum MICROCHANNEL coils or copper tube and aluminum 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.
  • Electronic expansion valve.
  • Electronic high and low pressure gauges.
  • HFO-R1234ze refrigerant.
  • Electrical board includes: main switch with door safety interlock, fuses or magnetothermic switches, thermal protection relays for compressors and thermocontacts for fans.
  • Microprocessor control and regulation system.
  • Units can be selected in standard, silenced and super-silenced versions. The super-silenced version includes: reduced fans speed: to guarantee the same cooling capacity compared to the standard version, the SSL version can include an increased number of modules; soundproofing enclosure for compressors: consisting of an external galvanised sheet metal enclosure, painted and internally coated with soundproofing material.

Factory fitted accessories

  • IM Automatic circuit breakers
  • SL Unit silencement
  • RFM Cooling circuit shut-off valve on discharge line
  • DSV Double relief safety valve with changeover switch on the high pressure side for each refrigerant circuit
  • DSVHL Double relief safety valve with changeover switch on the high and on the low pressure side of each refrigerant circuit
  • BT Low water temperature kit
  • EC EC Inverter fans
  • ECH EC Inverter fans with high available static pressure
  • TXB Coil with epoxy treatment
  • TX Coil with pre-coated fins
  • EWL Left-side external water connections
  • EWR Right-side external water connections
  • EWB External water connections on rear side
  • 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%
  • FE Antifreeze heater for evaporator
  • FN Antifreeze heater for pipes
  • FG Antifreeze heater for single pump and pipes
  • FM Antifreeze heater for double pump and pipes
  • SS Soft start
  • WM Web Monitoring - Wireless remote monitoring (GPRS/EDGE/4G/TCP-IP)
  • IS Modbus RTU protocol, RS485 serial interface
  • IST Modbus TCP/IP protocol, Ethernet port
  • ISB BACnet MSTP protocol, RS485 serial interface
  • ISBT BACnet IP protocol, Ethernet port
  • ISS SNMP protocol, Ethernet port
  • 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
  • CP Potential free contacts
  • GDS Leak detector
  • MN High and low pressure gauges

Loose accessories

  • CR Remote control panel
  • AG Rubber shock absorbers
  • AM Spring shock absorbers
222272342402492602
Cooling MC versionCooling capacity (1)kW213260322402487600
Absorbed power (1)kW6779102124151185
EER (1)3,193,303,173,253,233,25
Cooling MC version (EN14511)Cooling capacity (1)kW213260322402487600
Absorbed power (1)kW6779102124152186
EER (1)3,173,283,143,233,213,23
SEER (2)4,784,754,664,784,874,84
Energy Efficiency (2)%188187183188192191
Cooling CuAl versionCooling capacity (1)kW212258318399485598
Absorbed power (1)kW6880103125152187
EER (1)3,133,243,083,193,203,20
Cooling CuAl version (EN14511)Cooling capacity (1)kW212258318399485597
Absorbed power (1)kW6880104126153188
EER (1)3,113,223,063,173,183,18
SEER (2)4,704,674,584,704,814,77
Energy Efficiency (2)%185184180185189188
CompressorQuantityn°2+22+22+22+23+33+3
Refrigerant circuitsn°222222
Capacity stepsn°444466
Unitary absorbed powerkW15,518,023,928,823,328,8
EvaporatorWater flowl/s10,1012,2915,1619,0123,1228,48
Pressure dropskPa171817191921
Water connectionsDN100100100150150150
Electrical characteristicsPower supplyV/Ph/Hz400/3/50400/3/50400/3/50400/3/50400/3/50400/3/50
Max. running currentA172217264325397485
Max. starting currentA370434496640628800
Unit with pumpPump available static pressurekPa129118119110140116
Water connectionsDN100100100150150150
ECH fan available static pressureMC versionPa707575757570
Sound pressureMC version (3)dB(A)717374767576
MC version with SL accessory (3)dB(A)687071737273
MC/SSL version (3)dB(A)626466676668
Weights MC versionsTransport weightkg237630493240399850355866
Operating weightkg242031003300408051605980

Dimensions

222272342402492602
LMC-CuAlmm315045004500585072008550
MC/SSL-CuAl/SSLmm450058505850720085509900
WMC-CuAl-MC/SSL- CuAl/SSLmm225022502250225022502250
HMC-CuAl-MC/SSL- CuAl/SSLmm255025502550255025502550

Notes

  • 1 Chilled water from 12 to 7 °C, ambient air temperature 35 °C.
  • 2 Seasonal energy efficiency of cooling at low temperature. According to EU Regulation 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 versions are specified on technical brochure.
  • N.B. (2) Data of CuAl versions are specified on technical brochure.