Mitsubishi Electric Ecodan EHSC series Installation Manual page 9

3
Technical Information
<EHSC-*M*EB> (Split model system without expansion vessel)
<Figure 3.3>
2
3
A
<Figure 3.4>
*For installation of this model, make sure to install a primary-side expansion vessel in the field. (See Figure 4.3.1.)
B C D
Number Component
 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
 Flow switch
2 Plate heat exchanger

3 Strainer valve
Inlet from space heating/Indirect DHW tank (pri-
A
mary return)
Outlet to space heating/Indirect DHW tank
B
(primary flow)
C Refrigerant (Liquid)
D Refrigerant (Gas)
Discharge from pressure relief valve (installer to
E
pipe connect to suitable drain point)
2
3
6
7
8
9

10
E
<Table 3.3>
8