3.1.2 TYPE 2: Version for operation with HITACHI DHW tank
RWH-(4.0-6.0)(V)NFWE
Top view
Front view
Side view
Units in: mm
XEKS 1718
Number
Part name
Number
Part name
1
Electronic expansion valve (R410A)
20
Drain pipe
2
Refrigerant strainer (x2)
21
Connection for DHW tank outlet
3
Check joint (R410A)
22
Expansion vessel 12L
4
Check valve (R410A)
23
Air purger
5
Plate heat exchanger (R410A-R134a)
24
Water strainer
6
Solenoid valve (1 cycle)
25
Water pump
7
Solenoid valve (2 cycles)
26
Water pressure port
8
Compressor
27
Refrigerant gas pipe connection -
∅
15.88 (5/8”)
9
Low pressure sensor (Ps)
28
Refrigerant liquid pipe connection -
∅
9.52 (3/8”)
10
High pressure sensor (Pd)
29
Water inlet pipe connection - G 1 1/4” female
11
High pressure switch (PSH)
30
Water outlet pipe connection - G 1 1/4” female
12
Check joint (R134a)
31
Shutdown valve (Factory supplied)
13
Check valve (R134a)
32
Refrigerant gas pipe thermistor
14
Electronic expansion valve (R134a)
33
Refrigerant liquid pipe thermistor
15
Plate heat exchanger (R134a-H2O)
34
Compressor suction thermistor
16
Plate heat exchanger (R410A-H2O)
35
Compressor discharge thermistor
17
3 way valve
36
Water inlet thermistor
18
Manometer
37
Water outlet thermistor
19
Safety valve
38
Switch for DHW “emergency” operation
GENERAL DIMENSIONS
PMML0340B rev.1 - 03/2016
4