Part Names And Functions - Mitsubishi Electric EHST20C-VM6HA Service Manual

4

PART NAMES AND FUNCTIONS

<EHST20C-*M*HA/*M*A> (Split model system)
B
E
J
K
8
9
11
17
14
18
Figure 4-1
<EHST20C-VM6SA> (Solar split model system)
B
C
D
E
J
K
8
9
11
17
14
18
Figure 4-2
A
F
2
1
19
3
4
5
10
12
7
13
15
16
A
F
2
1
19
3
4
5
10
12
13
15
16
Number Component
1 Automatic air vent
 Pressure relief valve
Expansion vessel
3
4 Main controller
Control and electrical box
5
Immersion heater (Only for EHST20C-*M*HA)
7
8 DHW tank
3-way valve
9
10 Water circulation pump
11 Manual air vent
1 Booster heater
Drain cock (Booster heater)
13
14 Strainer valve
Flow switch
15
Drain cock (Primary circuit)
16
Drain cock (DHW tank)
17
Plate heat exchanger
18
19 Manometer
A DHW outlet
Cold water inlet
B
Inlet from space heating
E
Outlet to space heating
F
Refrigerant (Gas)
J
Refrigerant (Liquid)
K
Number Component
1 Automatic air vent
 Pressure relief valve
Expansion vessel
3
4 Main controller
Control and electrical box
5
8 DHW tank
3-way valve
9
10 Water circulation pump
11 Manual air vent
1 Booster heater
Drain cock (Booster heater)
13
14 Strainer valve
Flow switch
15
Drain cock (Primary circuit)
16
Drain cock (DHW tank)
17
Plate heat exchanger
18
19 Manometer
A DHW outlet
Cold water inlet
B
C Outlet to solar
D Inlet from solar
Inlet from space heating
E
Outlet to space heating
F
Refrigerant (Gas)
J
Refrigerant (Liquid)
K
8