Yutaki S Combi - Rwd-(1.5-3.0)Rw2E-220S(-K/6H) - Hitachi YUTAKI S COMBI Series Installation And Operation Manual

2.1 YUTAKI S Combi -
RWD-(1.5-3.0)RW2E-220S(-K/6H)
View from A
Front view
XEKS2015_r0
PMEN0645 rev.0 - 04/2023
Side view

NOTE
Water flow direction
Units: mm
1. Plate heat exchanger
2. Water pump
3. Electric water heater
Expansion vessel 6L
4.
5. Water strainer
6. Air purger (x2)
7. Water pressure sensor
Safety valve
8.
9. Drain pipe for safety valve
10. Refrigerant strainer (x2)
11. Expansion valve
12. 3-way valve (for space heating and DHW)
13. Electrical box
14. Switch for DHW emergency operation
Unit controller
15.
16. Manometer
17. DHW tank (220L)
18. DHW tank heater+thermostat
Mounting foot (x4)
19.
20. Water inlet pipe connection - G 1" female
21. Water outlet pipe connection - G 1" female
22. DHW inlet pipe connection - G 3/4" male
23. DHW outlet pipe connection - G 3/4" male
24. Refrigerant liquid pipe connection -Ø 6.35 (1/4")
25. Refrigerant gas pipe connection - Ø12.7 (1/2")
Drain port (For DHW) - G 3/8"
26.
27. Shutdown valve (Factory supplied accessory)
28. Tank insulation
29. DHW thermistor 1
30. DHW thermistor 2
31. Water inlet thermistor
32. Water outlet thermistor
Water outlet PHEX thermistor
33.
34. Refrigerant liquid pipe thermistor
35. Refrigerant gas pipe thermistor
36. P&T Valve (Only UK Models)
Anode connection (accessory)
37.
2
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