Mitsubishi Electric EHST20C-VM6HA Service Manual page 9

<EHPT20X-VM2HA> (UK Packaged model system)
B
E
G
H
8
9
11
17
14
<EHPT20X-*M*HA/*M*A (except EHPT20X-VM2HA)> (Packaged model system)
B
E
G
H
8
9
11
17
14
A
F
2
1
10
Figure 4-3
A
F
2
1
10
Figure 4-4
Number
1

19
3
4
3
5
4
6
7
5
8
6
9
10
11
1
13
12
14
15
7
16
13 17
19
15
A
16
B
E
F
G
H
Number
1

19
3
3
4
5
4
7
5
8
9
10
11
1
13
12
14
15
7
16
17
13
19
15
A
16
B
E
F
G
H
9
Component
Automatic air vent
Pressure relief valve
Expansion vessel
Main controller
Control and electrical box
Temperature and pressure relief valve (not visible)
Immersion heater
DHW tank
3-way valve
Water circulation pump
Manual air vent
Booster heater
Drain cock (Booster heater)
Strainer valve
Flow switch
Drain cock (Primary circuit)
Drain cock (DHW tank)
Manometer
DHW outlet
Cold water inlet
Inlet from space heating
Outlet to space heating
Inlet from heat pump
Outlet to heat pump
Component
Automatic air vent
Pressure relief valve
Expansion vessel
Main controller
Control and electrical box
Immersion heater (Only for EHPT20X-*M*HA)
DHW tank
3-way valve
Water circulation pump
Manual air vent
Booster heater
Drain cock (Booster heater)
Strainer valve
Flow switch
Drain cock (Primary circuit)
Drain cock (DHW tank)
Manometer
DHW outlet
Cold water inlet
Inlet from space heating
Outlet to space heating
Inlet from heat pump
Outlet to heat pump