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MAInTEnAnCE
6.2
Safety notices
CAUTION
Danger of injury through sharp edges.
Handle the cladding panels with care
and avoid contact with sharp edges.
!
CAUTION
Danger of injury for unqualified personnel.
Servicing and Cleaning may only be carried
out by qualified personnel or by Hoval cus
-
tomer service personnel.
6.3
Venting
1. Open all radiator valves
2.
Heat up plant for at least 12 hours with a high flow
temperature.
3.
Switch off boiler and wait for 5 minutes.
4. Thoroughly vent the plant.
6.4
Replenishing water
§
The European Standard EN 14868 and the
Directive VDI 2035 must be observed (see
Replacement water has to be refilled if the
pressure falls below the minimum plant pres-
sure:
1. Connect hose to water tap.
2. Evacuate the air from the hose.
3.
Connect hose to filling and drainage valve.
4. Replenish replacement water.
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