7. General dimensions
TCGB0075 rev.0 - 11/2012
87
7
7.1.2 Indoor unit
RWH-(4.0-6.0)FS(V)NFE
No. Part name No. Part name No. Part name
1 Compressor 12
Liquid refrigerant pipe connection
(ø9.53)
23 Water pressure switch
2 Safety valve 13 Check valve 24 Solenoid valves (SV1, SV2)
3 Water pump 14 Expansion vessel 25 Mounting foot (x4)
4 Water strainer 15 Expansion valve (1st cycle) 26 High pressure sensor (Pd)
5 Water ow switch 16 Plate heat exchanger (R410A-H2O) 27 Low pressure sensor (Ps)
6 T-branch 17 Plate heat exchanger (R410A-R134a) 28 High pressure switch (PSH)
7 3-way valve 18 Plate heat exchanger (R134a-H2O) 29 Switch for DHW emergency operation
8 Air purger 19 Expansion valve (2nd cycle) A
R-134a check joint (for suction pressu-
re measuring or vacuum operation)
9
Flexible water pipes for space heating
(factory supplied accessory)
20 Upper cover for protection B
R-134a check joint (for discharge pres-
sure measuring or vacuum operation)
10 Electrical box 21 Manometer C
R-134a check joint (for charge/remo-
ving refrigerant or vacuum operation)
11
Gas refrigerant pipe connection
(ø15.88)
22 Water pressure ports (G 3/8”)
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