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cHecKIng THe WaTer LeveL/ coMMIssIonIng
6.
checking the water level
i
If the system pressure is too low (check
pressure gauge), inform your installer or
top it up with water.
Refilling the heating system
The heating system can normally be filled and topped up
with mains water. In exceptional cases, the water quality
may vary strongly and it might not always be suitable for
filling the heating system (highly corrosive or very hard
water). Please contact a certified specialist company in
such cases.
Follow the procedure below
•
Set main switch to "O."
• The shut-off valves in the flow and return lines must be
open.
• The boiler filling and drain cock is accessible from the
back of the boiler (right at the bottom, in the centre).
• Connect a hose between the filling cock and the water
tap:
- Fill the hose with water before establishing the con-
nection to prevent any air from entering the heating
system.
- Unscrew the hose again after filling to break the con
-
nection reliably.
• Slowly fill with water while checking the water level on
the hydrometer or manometer.
• Open the bleed valves briefly after topping up until all
the air has been vented from the radiator.
7.
commissioning
When commissioning the system, also observe the notes
in the installation manual.
1. Checks:
• Are the slide valves in the heating flow and return lines
open?
•
Is the combustion air supply into the boiler room ad-
equate?
•
Is the main switch on the boiler control unit set to “ON”?
•
Is the combustion chamber closed?
• Is the ash box fitted?
•
Is the cleaning cover (top) closed?
•
Is the pellet hopper full?
•
Is the pellet hopper cover closed?
2. Starting the burner:
•
Takes place automatically via the heating regulator
when there is a heat demand.
