MRA/K 15÷131

Aircooled condensing units with radial fans and Rotary/Scroll compressor for indoor ducted installation

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The indoor condensing units and reversible condensing units of the MRA/K 15÷131 series, with R410A refrigerant, are intended to satisfy the needs of small and medium-sized domestic or industrial systems with particular difficulty in positioning units outside the building.
With a prepainted plate structure, 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, generally in air-conditioning applications.
They are equipped with Rotary/Scroll compressors and radial fans, with appreciable useful head, 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

Power range

  • 4.5-37.0 kW
  • 1.3-10.0 Ton

Features

  • Self-supporting prepainted steel frame.
  • Rotary/Scroll compressor with internal overheat protection and crankcase heater, if needed.
  • Double inlet radial fan statically and dynamically balanced directly driven by a electric motor (15÷81) or belt driven connected to a three-phase electric motor (91÷131).
  • Condenser made of copper tubes and aluminium finned coil.
  • R410A refrigerant.
  • Electrical board includes: main switch with door safety interlock, fuse and compressor remote control switch.

Factory fitted accessories

  • CC Condensing control down to -20 °C
  • TX Coil with pre-coated fins
  • RL Liquid receiver
  • VS Solenoid valve

Loose accessories

  • RP Coils protection metallic guards
  • AG Rubber shock absorbers
1518212531415161718191101131
CoolingCooling capacity (1)kW4,55,66,88,09,210,813,215,819,121,226,430,936,6
Absorbed power (1)kW1,51,92,22,63,03,84,95,97,07,910,310,413,5
CompressorQuantity1111111111111
TypeRotaryRotaryRotaryRotaryScrollScrollScrollScrollScrollScrollScrollScrollScroll
ConnectionsSuction lineØ mm16161616161618182222282828
Liquid lineØ mm10101010101012121212121212
Available static pressureSTD versionPa909080808080115115115115150150160
Electrical characteristicsPower supplyV/Ph/Hz230/1/50230/1/50230/1/50230/1/50230/1/50230/1/50400/3+N/50400/3+N/50400/3+N/50400/3+N/50400/3+N/50400/3+N/50400/3+N/50
Max. running currentA10121314172111141415273336
Max. starting currentA40466565828961646177146151148
Sound pressureSTD version (2)dB(A)51515152535459596060626264
WeightsTransport weightkg120121123126131133190200202204313319334
Operating weightkg121122124127132134192203205207316322338

Dimensions

1518212531415161718191101131
LSTDmm900900900900900900900900900900150015001500
WSTDmm550550550550550550690690690690800800800
HSTDmm1425142514251425142514251725172517251725142514251425

Notes

  • 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.