Checking The Burner Adjustment - Viessmann VITORADIAL 300-T Service Instructions Manual

Commissioning, inspection, maintenance
Further details regarding the individual steps
11. When heating the system from cold
(also when restarting after mainte-
nance and cleaning work), prevent
all heat supply to heat consumers,
in order to clear the dew point range
as quickly as possible.
!
Please note
During boiler heat-up,
unpleasant fumes and
odours can result from out-
gassing from the thermal
insulation, the heating block
and the paint.
Vent the room during com-
missioning.
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 clear decline
can be recognised.

Checking the burner adjustment

Burner service instructions
10
(cont.)
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
result in injuries.
First depressurise the boiler.
Only drain the boiler with a suc-
tion pump if the air vent valve is
open.