SECTION 3
-
Components and schematic
1.
Drain / air venting
2.
Strainer with drain valves
3.
Pocket for heat meter strainer
4.
Isolation Valves
5.
Diverter valve actuator
6.
Pressure independent control valve & actuator
7.
CH Circulating pump
8.
Automatic air vent
9.
Safety pressure relief valve
10.
Low pressure switch
11A DHW Plate heat exchanger
11B CH Plate heat exchanger
12. Expansion vessel 8 Ltr
13. Pressure gauge
14. Shock arrester
15. Flushing by pass connections
16. Flow meter switch
17. Temperature sensor
18. Heat meter position 110mm pipe
19. Filling group
20. PID Controller
11B
14
16
Rear view of HIU with the HIU back panel made hidden
12
Page 5
3
1
6
15
2
18
2
View from underneath
19
20
3
2
4
7
9
10
13
20
17
4
View from above
5
1
5
8
11A
12
11B
1
06/21 E&OE