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8.7.2
8.8
8.8.1
8.8.2
48
4.
Open the stop valve (4) of the cold water supply pipe (A). Cold water flows into the
water heater.
5.
Fill the water heater until a full water jet flows from the nearest draw-off point. The
water heater is completely full.
6.
Open all draw-off points to bleed the entire installation of air.
The water heater is now under water supply pressure.
7.
Make sure that no water comes out of the expansion valve (15) or the T&P valve (3).
If water comes out:
-
Examine if the water supply pressure is greater than the specified value in the
Technical details. If necessary, install a pressure reducing valve (1).
-
Examine if the expansion valve in the protected cold supply set-up is installed
correctly and is not defective. If necessary, replace the expansion valve.
8.
Close all hot water draw-off points.
Turn on the water heater
Refer to the procedure in the user part to Turn on the water heater (see 4.1).
Decommissioning
To decommission the water heater:
1.
Turn off the water heater (see 8.8.1)
2.
Drain the water heater (see 8.8.2)
Turn off the water heater
Refer to the procedure in the user part to Turn off the water heater (see 4.2) and isolate
the water heater from the mains power supply.
Draining
Refer to the installation diagram when you drain the water heater:
1.
If applicable, close the service stop valve (11) in the hot water pipe.
2.
If applicable, close the stop valves (4) of the circulation pipe (C).
3.
Close the stop valve (4) in the cold water supply.
4.
Open the drain valve (9).
5.
Aerate the entire installation of air until the water heater is completely drained.
6.
If the water heater needs to be drained completely, disconnect and tilt the water
heater in the direction of the drain valve.
Installation, Maintenance and Service part
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