8
Figure 4-3
Figure 4-4
Number
Component
1
Control and electrical box
2
Main controller
3
Manometer
6
Automatic air vent
7
Booster heater
8
Drain cock
9
Water circulation pump
10
Pressure relief valve
11
Flow switch
12
Plate heat exchanger
13
Strainer valve
A
Inlet from space heating/Indirect DHW tank (pri-
mary return)
B
Outlet to space heating/Indirect DHW tank
(primary fl ow)
C
Refrigerant (Liquid)
D
Refrigerant (Gas)
E
Discharge from pressure relief valve (installer to
pipe connect to suitable drain point)
6
7
8
9
11
10
E
<EHSC-*M*EB> (Split model system without expansion vessel)
*For installation of this model, make sure to install a primary-side expansion vessel in the fi eld. (Refer to installation manual, Figure 4.3.3.)
1
2
3
A
B
C
D
13
12
OCH532A
