Part Names And Functions - Mitsubishi Electric EHGT17D-YM9ED Service Manual

3

PART NAMES AND FUNCTIONS

Component Parts
No.
A DHW outlet pipe
B Cold water inlet pipe
C Water pipe (Space heating return connection)
D Water pipe (Space heating flow connection)
E Brine pipe (Bore hole return connection)
F Brine pipe (Bore hole flow connection)
1 Control and electrical box
2 Main remote controller
3 Plate heat exchanger (Refrigerant - Water)
4 Booster heater 1,2
5 3-way valve
6 Manual air vent
7 Drain cock (Primary circuit)
8 Manometer
9 Pressure relief valve (3bar)
10 Automatic air vent
11 Expansion vessel (Optional parts)
12 Flow sensor
13 Strainer valve
14 Water circulation pump 1 (Primary circuit)
15 Pump valve
16 DHW tank
17 Plate heat exchanger (Water - Water)
18 Scale trap
19 Water circulation pump (Sanitary circuit)
20 Immersion heater (Optional parts)
21 Level vessel (Local supply)
22 Pressure relief valve (10bar) (DHW Tank)
23 Drain cock (DHW tank)
24 Pressure relief valve (3bar) (Local supply)
25 Flow water temp. thermistor (THW1)
26 Return water temp. thermistor (THW2)
27 DHW tank water temp. thermistor (THW5A)
28 DHW tank water temp. thermistor (THW5B)
29 Refrigerant liquid temp. thermistor (TH2)
30 Module
31 Drain pipe (Local supply)
32 Back flow prevention device (Local supply)
33 Isolating valve (Local supply)
34 Magnetic filter (Local supply) (Recommended)
35 Manometer (Local supply)
36 Compressor
37 High pressure switch/sensor
38 Linear expansion valve
39 Charge plug
40 Liquid temp. thermistor (TH3)
41 Discharge temp. thermistor (TH4)
42 Ambient temp. thermistor (TH7)
43 Heat sink temp. thermistor (TH8)
44 Plate heat exchanger (Brine - Refrigerant)
45 Drain cock (Brine circuit)
46 Brine circulation pump
47 Flow switch
48 Brine inlet temp. thermistor (TH32)
49 Brine outlet temp. thermistor (TH34)
50 Muffler
<Table 3.1>
Note:
For parts not shown above figure, please refer to 'Circuit diagram'.
OCH722A
Part name
<Overall>
9
10
D
C
8
16
5
30
<Module>
37
38
12
7
3
13
14
9
F E 22 A
B
50
44
39
15
<Figure 3.1>
1
19
6
18
23
17
36
4
47
46
45