Hitachi YUTAKI S COMBI Series User Manual

ENGLISH
5.2 REFRIGERANT CYCLE AND HYDRAULIC CIRCUIT FOR MONOBLOC SYSTEM - YUTAKI M
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RAS-3WHVNE
Refrigerant
Heating refrigerant ow Cooling refrigerant ow Water ow (Heating/Cooling) Field supplied piping line Flare nut connection Brazed connection R410A
Nº Part name
1 Compressor 2 Air side heat exchanger 3 Accumulator 4 Liquid tank 5 Electronic expansion valve 6 4-way valve 7 Solenoid valve for gas by-pass 8 Refrigerant strainer 9 Distributor
Nº Part name
10 Refrigerant check joint
11 High pressure switch for protection
12 Stop valve for gas line 13 Stop valve for liquid line 14 Sensor for refrigerant pressure 15 Silencer 16 Pressure switch for control 17 Ambient thermistor 18 Discharge gas thermistor
Nº Part name
19 Pipe thermistor 20 Water side heat exchanger 21 Air purger 22 Safety valve 23 Drain pipe 24 Expansion vessel 25
Air valve for pressure regulation of expansion vessel
26 Water pump
Nº Part name
27 Water strainer 28 Water inlet connection 29 Water outlet connection 30 Shut-off valve (Accessory) 31 Gas pipe thermistor (Heating) 32 Liquid pipe thermistor (Heating) 33 Water inlet thermistor 34 Water outlet thermistor
REFRIGERANT CYCLE AND HYDRAULIC CIRCUIT
PMML0335A rev.1 - 04/2016
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Hitachi YUTAKI S COMBI Series Specifications

General

Type	Air-to-Water Heat Pump
Energy Efficiency Class (Cooling)	A++
Refrigerant	R32
Operating Temperature Range (Heating)	-20°C to 35°C
Energy Efficiency Class (Heating)	A+++
Integrated DHW Tank	190 liters
Dimensions (Indoor Unit)	Varies by model
Dimensions (Outdoor Unit)	Varies by model
Weight (Indoor Unit)	Varies by model
Weight (Outdoor Unit)	Varies by model
Operating Temperature Range (Cooling)	+10°C to +46°C