10
12.
After the flow temperature has been
reached, switch ON the heat con-
sumers in sequence and change the
burner over to automatic mode.
!
Please note
When testing the flue gas for
CO, internal gases being
expelled from the heating
block can cause higher val-
ues.
Continue to operate the
boiler until a decline can be
clearly recognised.
13.
Check all gaskets and plugs, and
retighten if necessary.
14.
Check the boiler door and cleaning
cover after approx. 50 hours run and
retighten all screws.
Danger
Opening the connections on the
heating water side whilst the
boiler is under pressure can
cause personal injury.
First depressurise the boiler.
Only drain the boiler with a suc-
tion pump when the air vent valve
is open.
Shutting down the system
Danger
Only open the connections on the
heating water side after the boiler
has been depressurised.
Only drain the boiler with a suc-
tion pump when the air vent valve
is open.
Closing the Vitoair draught stabiliser (if installed)
1.
Start the burner.
2.
With the pre-purge running, shut
down the system. The control disc will
then be closed.
Opening the boiler door and cleaning cover
Note
On gas burners, remove the gas supply
pipe.
Commissioning, inspection, maintenance
Further details regarding the individual steps
(cont.)
5692 701 GB
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