Hitachi YUTAKI S80 R410A Series Installation And Operation Manual page 18

2.1 TYPE 1: Version for operation in DHW but with a remote tank
RWH-(4.0-6.0)(V)NFE
◆
Top view
Front view
XEKS1717
PMEN0648 rev.0 - 03/2023
Side view
Units: mm
1. Electronic expansion valve (R410A)
2. Refrigerant strainer (x2)
3. Check joint (R410A)
4. Check valve (R410A)
5. Plate heat exchanger (R410A-R134a)
6. Solenoid valve (1 cycle)
Solenoid valve (2 cycles)
7.
8. Compressor
9. Low pressure sensor (Ps)
10. High pressure sensor (Pd)
High pressure switch (PSH)
11.
12. Check joint (R134a)
13. Check valve (R134a)
14. Electronic expansion valve (R134a)
15. Plate heat exchanger (R134a-H2O)
16. Plate heat exchanger (R410A-H2O)
17. Water pressure port
Water pump
18.
19. Safety valve
20. Drain pipe
21. Air purger
Water strainer
22.
23. Expansion vessel 12L
24. Manometer
25. Refrigerant gas pipe - Ø15.88 (5/8")
26. Refrigerant liquid pipe - Ø9.52 (3/8")
27. Water inlet pipe - G 1 1/4" female
28. Water outlet pipe - G 1 1/4" female
Shut-off valve (Factory supplied)
29.
30. Refrigerant gas pipe thermistor
31. Refrigerant liquid pipe thermistor
32. Compressor suction thermistor
Compressor discharge thermistor
33.
34. Water inlet thermistor
35. Water outlet thermistor
36. Switch for DHW "emergency" operation
2
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