Hitachi YUTAKI S80 R410A Series Installation And Operation Manual page 19

2.2 TYPE 2: Version for operation with Hitachi DHW tank
RWH-(4.0-6.0)(V)NFWE
◆
Top view
Front view
XEKS 1718
PMEN0648 rev.0 - 03/2023
Electronic expansion valve (R410A)
1.
2. Refrigerant strainer (x2)
3. Check joint (R410A)
4. Check valve (R410A)
5. Plate heat exchanger (R410A-R134a)
6. Solenoid valve (1 cycle)
7. Solenoid valve (2 cycles)
Compressor
8.
9. Low pressure sensor (Ps)
10. High pressure sensor (Pd)
11. High pressure switch (PSH)
Check joint (R134a)
12.
13. Check valve (R134a)
14. Electronic expansion valve (R134a)
15. Plate heat exchanger (R134a-H2O)
16. Plate heat exchanger (R410A-H2O)
17. 3 way valve
18. Manometer
Safety valve
19.
20. Drain pipe
Side view
21. Connection for DHW tank outlet
22. Expansion vessel 12L
23. Air purger
24. Water strainer
25. Water pump
Drain port
26.
27. Refrigerant gas pipe - Ø15.88 (5/8")
28. Refrigerant liquid pipe - Ø9.52 (3/8")
29. Water inlet pipe - G 1 1/4" female
Water outlet pipe - G 1 1/4" female
30.
31. Shut-off valve (Factory supplied)
32. Refrigerant gas pipe thermistor
33. Refrigerant liquid pipe thermistor
34. Compressor suction thermistor
35. Compressor discharge thermistor
36. Water inlet thermistor
Water outlet thermistor
37.
38. Switch for DHW "emergency" operation
Units: mm
2
10