ITS 300
29
3
4
9
17
11
14
14
14
12
A
E
4
18
19
H
A
3
4
1
5
15
16
A
11
14
14
14
12
9
2 Installation
2.1 Installation diagram
This figure shows the installation diagram. This diagram is referred to in the sections
describing the actual connection procedure.
VENTED
UNVENTED
Legend
1. pressure relief valve
(mandatory if mains water
pressure is too high)
3. T&P-valve (mandatory)
4. stop valve (recommended)
5. non-return valve (mandatory)
6. circulation pump (optional)
9. drain valve
11. service stop valve
12. temperature gauge (optional)
14. draw-off points
15. expansion valve (mandatory)
16. expansion vessel (mandatory)
17. 3-way aeration valve (recommended)
18. cold water head tank
19. float switch
A. cold water supply
B. hot water supply
C. circulation pipe
E. overflow pipe
F. inlet heat exchanger
G. outlet heat exchanger
H. overflow protection
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