Indoor Unit - Hitachi YUTAKI S80 Series Technical Catalogue

7. General dimensions

7.1.2 Indoor unit

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