7 Refrigerant cycle and hydraulic circuit
Refrigerant cycle and hydraulic circuit for Split system
TCGB0123 rev.2 - 10/2019
93
7
7.1.2 YUTAKI S COMBI
RAS-(2-3)WHVRP + RWD-(2.0-3.0)NRW(S)E-(200/260)S(-K)
Nº Part name
1 Compressor
2 Air side heat exchanger
3 Accumulator
4 Electronic expansion valve
5 4-way valve
6 Refrigerant strainer
7 Distributor
8 Refrigerant check joint
9
High pressure switch for
protection
Nº Part name
10 Stop valve for gas line
11 Stop valve for liquid line
12 Pressure switch for control
13 Silencer (only for 3HP)
14 Ambient thermistor
15 Discharge gas thermistor
16 Pipe thermistor
17 Water side heat exchanger
18 Air purger
Nº Part name
19 Safety valve
20 Drain pipe
21 Expansion vessel
22
Air valve for pressure regulation of
expansion vessel
23 Water pump
24 Water strainer
25 Water inlet connection
26 Water outlet connection
Nº Part name
27 Shut-off valve
28 Gas pipe thermistor (Heating)
29 Water inlet thermistor
30 T-branch
31 Water outlet thermistor
32 Water electric heater
33 Low pressure switch
34 Water outlet thermistor
35 Manometer
Nº Part name
36 IU refrigerant liquid connection
37 IU refrigerant gas connection
38 Water outlet (DHW)
39 Water inlet (DHW)
40 3-way valve
41 Manual air purger
42 T-branch
43 Water inlet thermistor
44 Drain port (for DHW)
Nº Part name
45
Domestic hot water tank
46 Solar coil outlet (for solar model)
47 Solar coil inlet (for solar model)
48 DHW thermistor
49 DHW thermostat (for UK model)
50 Drain port (for IU water)
51
P & T relief valve (For UK market)
52
Electric heater and thermostat
Refrigerant
Heating refrigerant ow Cooling refrigerant ow Water ow (Heating/Cooling) Field supplied piping line Flare nut connection Brazed connection R32
Outdoor unit
YUTAKI
S COMBI
? NOTE
(*): Use refrigerant pipe adapters factory supplied with the outdoor unit.
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