JCR 051÷172 S/K

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

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The indoor condensing units and reversible condensing units of the JCR 051÷172 S/K series, with R410A refrigerant, are designed to satisfy the needs of medium-sized domestic or industrial systems with particular difficulty in positioning units outside the building.
These 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 radial fans even in a high ESP version, 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.


  • JCR - Cooling only
  • JCR/AP - Cooling only with high ESP fans
  • JCR/WP - Reversible Heat Pump
  • JCR/WP/AP - Reversible Heat Pump with high ESP fans

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.
  • Radial fans coupled to 3-phase motors by V belt and variable pulley.
  • 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
  • CC Condensing control down to -20 °C
  • 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)kW18,321,424,928,231,936,643,249,658,269,2
HeatingHeating capacity (2)kW55,563,573,683,994,5109125142162193
Absorbed power (2)kW15,617,721,524,126,830,336,740,646,755,5
Refrigerant circuits1111111122
Capacity steps2222233344
ConnectionsSuction lineØ mm1x351x351x351x351x351x421x421x422x352x35
Liquid lineØ mm1x221x221x221x221x221x281x281x282x222x22
Available static pressureSTD versionPa165147120120105115135135190105
High ESP versionPa298288263263245256------400---
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 currentA43485761708094107122146
Max. starting currentA166169180193237204227275255313
Sound pressureSTD version (3)dB(A)70707070717374747576
STD version with SL accessory (3)dB(A)68686868697172727374
High ESP version (3)dB(A)717171717274------76---
High ESP version with SL accessory (3)dB(A)696969697072------74---
WeightsTransport weightkg59560067068072582586589510801185
Operating weightkg60561068069073584088091011051215




  • 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 WP versions are specified on technical brochure.