A.O. Smith ADMR-40 Installation, User And Service Manual page 46

5
5.1.2
Legend
Only applicable numbers are
mentioned.
3. T&P valve (mandatory)
4. stop valve (recommended)
5. non-return valve (mandatory)
6. circulation pump (optional)
7. top to bottom circulation pump
(optional)
9. drain valve
10. manual gas valve (mandatory)
11. service stop valve (mandatory)
12. temperature gauge
(recommended)
14. hot water draw-off points
17. 3-way aeration valve
(recommended)
18. water tank
19. float valve
A. cold water supply
B. hot water supply
C. circulation pipe
D. gas supply
E. overflow pipe
H. overflow pipe
46
Filling
7. The appliance is now under water supply pressure. There should be no
water coming out of the expansion valve (15) or out of the T& valve (3). If
there is, the cause might be:
- The T&P valve is defective or incorrectly fitted.
- The water supply pressure is greater than the specified 8 bar.
Rectify this by fitting a pressure reducing valve (1).
- The expansion valve in the protected cold supply setup is defective or
incorrectly fitted.
Filling vented installations
Installation diagram
4 6 5 4
C
9
D
10
To fill the appliance, proceed as follows:
1. Open the stop valve (11) in the hot water pipe and, if present, the stop valves
(4) for the circulation pump (6).
2. Close the drain valve (9).
3. Open the nearest hot water draw-off point (14).
4. Open the stop valve (4) on the cold water side (A) so that cold water flows
into the appliance.
5. Completely fill the appliance. When a full water jet flows from the nearest
draw-off point, the appliance is full.
6. Bleed the entire installation of air, for example by opening all draw-off points.
7. The appliance is now under water supply pressure. There should be no
water coming out of the T&P valve (3). If this does happen, the T&P valve
might be defective or incorrectly fitted.
gis
E
17
12
B
11
14
3
4
14
7
14
5
C
4
4
Instruction manual ADMR
H
A
19
4
18
IMD-0141 R3