MRA/K 182÷604

Aircooled condensing units with radial fans and Scroll compressors

The indoor condensing units of the MRA/K 182÷604 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. 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.

Versions

MRA/K - Cooling only
MRA/K/AP - Cooling only with high ESP fans

Power range

51,0-188 kW
14,0-54,0 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.
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.

Accessories

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
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