4.4
SERVICING THE BURNER
-
Check and clean the burner and ignition electrode.
-
Check that the safety components are working properly.
4.5
EMPTYING THE BOILER
4.5.1
EMPTYING THE PRIMARY CIRCUIT (central heating):
1.
Switch off the power to the boiler at the mains switch installed by
the electrician.
2.
Close the isolating valves (1) of the boiler system.
3.
Connect a hose to the drain valve (2).
Ensure that it is attached properly.
4.
Open the drain valve and let the hot water drain out.
5.
When the boiler is empty, return the isolating and safety valves to
their initial positions.
4.5.2
EMPTYING THE HOT WATER TANK:
1.
Switch off the mains power to the boiler at the external switch
installed by the electrician.
2.
Relieve the pressure in the primary circuit.
3.
Close valves (A) and (B).
4.
Open valves (C) and (D) (first C then D).
5.
Let the water drain away.
6.
After emptying, return the valves to their initial positions.
For the tank to be emptied, valve (C) must be situated at
ground level.
4.6
SPARE PARTS
Refer to the specific document available from ACV or your distributor.
4
SERVICING
Fig. 12a: Emptying the primary circuit
Fig. 12b: Emptying the hot water circuit
1
1
2
A
C
B
D
7
