Operating Instructions and Installation Instructions

ST 1500 / 2000 / 2500 / 3000
25
4
9
17
11
14
14
14
12
A
E
4
18
19
H
9
11
14
14
14
12
A
4
1
5
15
16
2 Installation
Important
Three anodes are delivered with the storage tank. Mount the anodes with a liquid sealant in
the right connections (8) before installation. When anodes are not mounted during operation,
all warranty conditions are void.
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
IMD-0644 IMD-0645
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
H. overflow protection