3.7 RWH-(4.0-6.0)(V)NFE
Top view
Front view
Side view
Units in: mm
XEKS1717
Nº
Part name
Nº
Part name
1
Electronic expansion valve (R410A)
19
Safety valve
2
Refrigerant strainer (x2)
20
Drain pipe
3
Check joint (R410A)
21
Air purger
4
Check valve (R410A)
22
Water strainer
5
Plate heat exchanger (R410A-R134a)
23
Expansion vessel 12L
6
Solenoid valve (1 cycle)
24
Manometer
7
Solenoid valve (2 cycles)
25
Refrigerant gas pipe connection-
∅
15.88 (5/8”)
8
Compressor
26
Refrigerant liquid pipe connection -
∅
9.52 (3/8”)
9
Low pressure sensor (Ps)
27
Water inlet pipe connection - G 1 1/4” female
10
High pressure sensor (Pd)
28
Water outlet pipe connection - G 1 1/4” female
11
High pressure switch (PSH)
29
Shutdown valve (Factory supplied)
12
Check joint (R134a)
30
Refrigerant gas pipe thermistor
13
Check valve (R134a)
31
Refrigerant liquid pipe thermistor
14
Electronic expansion valve (R134a)
32
Compressor suction thermistor
15
Plate heat exchanger (R134a-H2O)
33
Compressor discharge thermistor
16
Plate heat exchanger (R410A-H2O)
34
Water inlet thermistor
17
Water pressure port
35
Water outlet thermistor
18
Water pump
36
Switch for DHW “emergency” operation
NAME OF PARTS AND DIMENSIONAL DATA
PMML0575 rev.2 - 03/2022
20
