3
3
technical information
technical information
Component Parts
<eHSt20C-*M*HB/*M*B> (Split model system)
B
E
J
K
8
9
11
17
14
18
<Figure 3.1>
*For installation of eHSt20C-*M*eB model, make sure to install a primary-side expansion vessel in the field. (See Figure 4.3.1.)
<eHSt20C-VM6SB> (Solar split model system)
B
C
D
E
J
K
8
9
11
17
14
18
<Figure 3.2>
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
2
Pressure relief valve
3
Expansion vessel *(Except EHST20C-*M*EB)
4
Main controller
5
Control and electrical box
7
Immersion heater (Only for EHST20C-*M*HB)
8
DHW tank
9
3-way valve
10
Water circulation pump
11
Manual air vent
12
Booster heater
13
Drain cock (Booster heater)
14
Strainer valve
15
Flow switch
16
Drain cock (Primary circuit)
17
Drain cock (DHW tank)
18
Plate heat exchanger
19
Manometer
A
DHW outlet
B
Cold water inlet
E
Inlet from space heating
F
Outlet to space heating
J
Refrigerant (Gas)
K
Refrigerant (Liquid)
<Table 3.2>
number
Component
1
Automatic air vent
2
Pressure relief valve
3
Expansion vessel
4
Main controller
5
Control and electrical box
8
DHW tank
9
3-way valve
10
Water circulation pump
11
Manual air vent
12
Booster heater
13
Drain cock (Booster heater)
14
Strainer valve
15
Flow switch
16
Drain cock (Primary circuit)
17
Drain cock (DHW tank)
18
Plate heat exchanger
19
Manometer
A
DHW outlet
B
Cold water inlet
C
Outlet to solar
D
Inlet from solar
E
Inlet from space heating
F
Outlet to space heating
J
Refrigerant (Gas)
K
Refrigerant (Liquid)
<Table 3.3>
4