MHA/K 182÷604

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


The condensing units and reversible condensing units of the MHA/K 182÷604 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. 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.


  • MHA/K - Cooling only
  • MHA/K/SSL - Super silenced cooling only

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
  • RL Liquid receiver
  • 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
  • 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
CoolingCooling capacity (1)kW50,658,666,977,288,4102117134156188
Absorbed power (1)kW16,819,022,125,329,134,637,644,251,763,2
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 currentA4144525664758293110131
Max. starting currentA164166175188231199214261242298
Sound pressureSTD version (2)dB(A)61616464656668686970
With SL accessory (2)dB(A)59596262636466666768
SSL version (2)dB(A)575760606162636364---
WeightsTransport weightkg5505756156256707708008309801090
Operating weightkg56058562563568078581584510051120




  • 1 Evaporating temperature 5 °C, ambient air temperature 35 °C.
  • 2 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.