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6 Commissioning
•
Slide the switch until the "I" symbol
appears.The display and operating
mode indicator light up: the boiler is
ready to run.
•
Open the isolating valves located on
the pipes: they will be placed in the
direction of the flow.
•
Open the auto air vent on the pump as
well as the automatic bleeders of the
system.
•
Open the two blue filling loop valves
situated under the boiler simultaneously
until you obtain a 2 bar pressure on the
indicator.
•
Bleed each radiator to remove the air,
re-tighten bleed screws.
•
Leave the cap on the pump auto air
vent open.
Flush the domestic hot water system by
•
openning the hot water taps for several
minutes.
•
Make sure the display indicates a
system pressure of between 1 and 2
bars. Re-fill system as necessary.
•
Operate the appliance for at least 15
minutes on heating with a heating
temperature equal or greater to 50°C.
•
Flush the domestic hot water system by
openning the hot water taps for several
minutes.
•
Make sure the display indicates a
system pressure of between 1 and 2
bars. Re-fill system as necessary.
7 Specific adjustments
7.1
Heating circuit adjustment
This flow rate will be adjusted according to
the system calculations.
When it is delivered, the (1) integrated
bypass screw is open by half a turn.
1
Legend
1
Bypass screw
•
Depending on the requirements, adjust
this screw (for example, screw for
closing) in order to fit the available
pressure head to the system energy
loss according to the output/pressure
curve.
1
2
Legend
1
Speed selector of pump
2
Speed I
3
Speed II
•
Turn the selector (1) to choose pump
speed I or II in relation to the output/
pressure curve.
28
3
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