Main Circulation Unit Components - Immergas HERCULES SOLAR 26 2 ErP Instruction And Recommendation Booklet

1.29 MAIN CIRCULATION UNIT COMPONENTS.

13
2
1
10
11
4
8
12
Solar circulation unit available head.
V2
V1
9 7
6
6
5
Key:
4
14
3
2
1
V4
V3
A4
A3
A2
A1
Flow rate (l/h)
4
IN
5
12 8
3
1 - Solar pump
2 - Non-return valve, thermometer
and cock
3 - Safety valve drain fitting
4 - Flow meter
5 - 6 bar safety valve
6 - 3/4" connection for expansion vessel
22
2
11 1
9
7
5
7 - Manometer
8 - Draining valve
9 - Filling valve
10 - Insulating casing
11 - Flow rate regulator
12 - Inlet
13 - Outlet
14 - Reference for flow rate reading
Key:
Vn = Available head
An = Circulating pump absorbed power
1-30
OUT
13
6
1-31