JCA 051÷172 S/K

Aircooled condensing units and reversible condensing units with axial fans and Scroll compressors

_ktk_icon_versions_cooling_only.png _ktk_icon_versions_cooling_heating.png _ktk_icon_compressor_scroll.png _ktk_icon_axial_fan.png _ktk_icon_refrigerant_R410A.png

The condensing units and reversible condensing units of the JCA 051÷172 S/K series, with R410A refrigerant, are designed to satisfy the needs of medium and large-sized domestic or industrial systems.
These outdoor units are combined with evaporators in split system air conditioning installations, allowing the rooms to be cooled and dehumidified or to be heated. They can also be used in combination with hydronic evaporating units in both air conditioning and industrial process cooling applications
They are equipped with Scroll compressors and axial fans, and they enable immediate and efficient use thanks to particular technical and design adjustments.
A wide range of accessories, factory fitted or supplied separately, complete the outstanding versatility and functionality of the series.


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

Power range

  • 51.0-188 kW
  • 14.0-54.0 Ton


  • 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 coil.
  • R410A refrigerant.
  • Electrical board includes: main switch with door safety interlock, fuses, thermal protection relays for compressors and thermocontacts for fans.
  • Microprocessor control and regulation system.

Factory fitted accessories

  • IM Automatic circuit breakers
  • SL Unit silencement
  • RFM Cooling circuit shut-off valve on discharge line
  • RFL Cooling circuit shut-off valve on liquid line
  • CT Condensing control down to 0 °C
  • CC Condensing control down to -20 °C
  • EC EC Inverter fans
  • ECH EC Inverter fans with high available static pressure
  • TX Coil with pre-coated fins
  • VS Solenoid valve
  • BP Hot gas by-pass valve
  • FF Dryer filter and sight glass
  • SS Soft start
  • IS Modbus RTU protocol, RS485 serial interface
  • CP Potential free contacts

Loose accessories

  • MN High and low pressure gauges
  • CR Remote control panel
  • RP Coils protection metallic guards
  • FP Coils protection metallic guards with filter
  • AG Rubber shock absorbers
  • AM Spring shock absorbers
CoolingCooling capacity (1)kW50,658,666,977,288,4102117134156188
Absorbed power (1)kW17,419,722,525,829,534,239,245,653,263,2
HeatingHeating capacity (2)kW55,563,573,683,994,5109125142162193
Absorbed power (2)kW14,716,019,121,724,427,932,736,641,749,5
Refrigerant circuits1111111122
Capacity steps2222233344
ConnectionsSuction lineØ mm1x351x351x351x351x351x421x421x422x352x35
Liquid lineØ mm1x221x221x221x221x221x281x281x282x222x22
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 currentA4043525665758598111132
Max. starting currentA163165175188232199218265243299
Sound pressureSTD version (3)dB(A)61616464656668686970
With SL accessory (3)dB(A)59596262636466666768
SSL version (3)dB(A)575760606162636364---
WeightsTransport weightkg60563567569073584588091010801199
Operating weightkg56058562563568078581584510051120




  • 1 Evaporating temperature 5 °C, ambient air temperature 35 °C.
  • 2 Average condensing temperature 40 °C, ambient air temperature 7 °C d.b./6 °C w.b.
  • 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 and WP versions are specified on technical brochure.