13
MAINTENANCE
SERVICE INTERVALS
ACV recommend that boilers should be serviced at least once a year.
This servicing work should be carried out by a competent technician.
SERVICING THE BOILER
1. Set the on/off switch on the control panel to the OFF pos tion and
switch the power off from the external box.
2.
Remove the top panel and the front and carry out a visual
inspection of the boiler looking out for any leaking water.
3.
Inspect the wiring looking for any sign of overheating.
4.
Check that the screws on the connection terminal block are
properly tightened.
5.
Replace the front and the top panel.
6.
Switch the boiler back on again.
SERVICING THE SAFETY DEVICES
-
Check that the thermostats and safety devices are working
properly.
-
Check the safety valves on both the central heating and the hot
water circuits.
DRAINING THE BOILER
Water flowing out of the drain cock may be
extremely hot and could cause severe scalding.
Keep people away from discharges of hot water.
Draining the heating circuit
1.
Switch the power to the boiler “OFF” at the mains switch installed
by the electrician.
2.
Close the boiler system’s isolating valves (1).
3.
Connect a hose to the drain cock (2) and make sure that it is
properly connected.
4.
Open the drain cock and allow hot water to flow out into the waste
water disposal system, check that air is being taken into the
system, by opening the air vent, for instance.
5.
Once you have finished, put the drain cocks back into their
original positions and adjust the pressure to the static pressure
+ 0.5 bar.
Draining the domestic hot water circuit
1.
Switch the mains power to the boiler off at the external switch
installed by the electrician.
2.
Close valves (A) and (B).
3.
Open valves (C) and (D) (first C then D).
4.
Let the water drain away.
5.
When you have finished, return the valves to their initial positions.
To allow the tank to be emptied, valve (C) must be
situated at ground level.
SPARE PARTS
Please refer to the specific document available from ACV or your
distributor.
1
1
2
Y
Y
A
C
B
D
60
85
