Yutaki-M R32

Hitachi Yutaki M

The best monobloc heat pump on the market

Year-round comfort, with heat output available at ambient temperatures as low as -20°C.

Model Reference

Rated Heat
Output (kW)

System COP

Min- Max
Flow Rate

Min System
Water Vol


HWCOutdoor Unit
Field SupplyRASM-2VRE4.30 (6.50)4.50 (5.30)0.5 / 1.928.0032240/1/50
Field SupplyRASM-3VRE8.00 (11.00)5.80 (7.50)0.6 / 2.128.0032240/1/50

Features and Benefits:

  • Domestic hot water as well as heating – ideal boiler replacement technology
  • Two heating circuits
  • Ease of Service and Maintenance: PCB can be rotated away from Mechanical componentry (see images below)
  • Screed drying function ideal for new builds
  • Weather compensation control
  • Generate water up to 60°C
  • DHW legionella protection program
  • One of the best COP’s on the market up to 5.25
  • A fully certified range. All models in the Yutaki-M range carry MCS accreditation
  • Eligible for domestic and non-domestic RHI
  • ErP energy efficiency class of up to A+++
  • Remote Controller PC-ARFHE (Includes; simply commissioning tool, weekly timer, holiday mode, smart function and a favourite button)
  • Wireless Remote Thermostat ATW-RTU-05 (Control remotely via smartphone app)
  • Optional cooling accessory available
  • Optional domestic hot water tank and buffer tanks


Advanced Technical Data

Outdoor Unit ModelRASM-2VRERASM-3VRE
Nominal Capacity (max) at A7/W35kW4.30 (6.50)8.00 (11.00)
Efficiency at A7/W35COP5.254.60
Nominal Capacity (max) at A7/W55kW4.30 (6.00)8.00 (9.50)
Efficiency at A7/W55COP3.002.80
Nominal Capacity (max) at A-7/W35kW4.50 (5.30)5.80 (7.50)
Efficiency at A-7/W35COP2.802.70
Nominal Capacity (max) at A-7/W55kW4.00 (4.20)5.00 (5.50)
Efficiency at A-7/W55COP2.001.75
Water Flow Rate min/maxm3/hr0.60 / 2.101.00 / 2.80
Minimum Water Volume (Defrost)L28
Water ConnectionsInch1"
Expansion Vessel SizeL6
Pump Type.Low Consumption
Water Temperature Range°C20 - 60
Power Supply230V/1Ph/50Hz
Optional Electric Back-Up HeaterkW6 (2/4/6)
Circuit Breaker Size (with DHW tank heater)A3232
Circuit Breaker Size (without DHW tank heater)ATBCTBC
Maximum Operating Current (with Back Up heater)A34.143.3
Maximum Operating Current (without DHW tank heater)A21.630.8
Sound Power Level @7/35 *dB(A)6169
Dimensions (H x W x D) Including Connectionsmm704 x 1248 x 300
Gross WeightKg7678
Operating Range°CHeating (-20 / +25°C) // DHW (-20 / +35°C) // Cooling (+10 / +46°C)
Refrigerant ChargekG1.21.3


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