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Hitachi YUTAKI S COMBI Series User Manual

Hitachi YUTAKI S COMBI Series
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RAS-(4-6)WHVNP + RWD-(4.0-6.0)NW(S)E-(200/260)S(-K)
Outdoor unit
YUTAKI
S COMBI
Part name
1 Compressor
2 Air side heat exchanger
3 Accumulator
4 Receiver
5 OU electronic expansion valve
6 4-way valve
7 Solenoid valve for gas by-pass
8 OU refrigerant strainer
9 Distributor
10 Refrigerant check joint
11 High pressure switch for protection
12 Sensor for refrigerant pressure
Part name
13 Stop valve for gas line
14 Stop valve for liquid line
15 Check valve
16 Silencer
17 Pressure switch for control
18 Ambient thermistor
19 Discharge gas thermistor
20 Pipe thermistor
21 OU refrigerant gas connection
22 OU refrigerant liquid connection
23 IU electronic expansion valve
24 IU refrigerant strainer
Part name
25 Water side heat exchanger
26 Manometer
27 Safety valve
28 Drain pipe
29 Low pressure switch
30
Air valve for pressure regulation of
expansion vessel
31 Expansion vessel
32 Water electric heater
33 Air purger
34 3-way valve
35 T-branch
Part name
36 Drain port (For DHW)
37 Domestic hot water tank
38 Water strainer
39 Water pump
40 Drain port (For indoor unit water)
41 Manual air purger
42 IU refrigerant gas connection
43 IU refrigerant liquid connection
44 Water inlet (DHW)
45 Water outlet (DHW)
46 Water inlet (Space heating)
47 Water outlet (Space heating)
Part name
48 Shut-off valve (Accessory)
49 IU refrigerant gas pipe thermistor
50 IU refrigerant liquid pipe thermistor
51 Water inlet thermistor
52 PHEX water outlet thermistor
53 Water outlet heat pump thermistor
54 DHW thermistor
55 Solar coil inlet (For solar models)
56 Solar coil outlet (For solar models)
57 P & T relief valve (For UK market)
58 DHWT sensor (For UK market)
Refrigerant
Heating refrigerant ow Cooling refrigerant ow Water ow (Heating/Cooling) Field supplied piping line Flare nut connection Brazed connection R410A
REFRIGERANT CYCLE AND HYDRAULIC CIRCUIT
PMML0335A rev.1 - 04/2016
80

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Hitachi YUTAKI S COMBI Series Specifications

General IconGeneral
BrandHitachi
ModelYUTAKI S COMBI Series
CategoryHeat Pump
LanguageEnglish

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