Strebel S-CB Px 120, Installation Operating & Maintenance Manual

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S-CB Px 120 Manual 84
S-CB Px 120
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13.
STARTING THE BOILER
13.1. General
Check the minimum gas pressure available at the gas connection pipe of the boiler. Use the pressure nipple (3) of
the gas safety valve for this measurement. The minimum gas pressure for the boiler to operate properly under the
correct load must be more than 20 mbar.
The graph shows the position of
the pressure nipple (3) for the
boiler:
13.2. Firing for the first time
After the commissioning of the boiler and the described previous actions, the boiler display will show the following
graph.
Display message
H E A T I N G : N o d e m a n d
> > > : 1 2 3 . 4 ° C ( 1 2 3 . 4 ° C )
Reason: Boiler is active, but there is no heat demand.
The display describes:
•
The actual operation for heating or hot water
•
If a heat demand is activated
•
The temperature setting
•
The temperature measured
When mounting the bottom part of the siphon, before commissioning the boiler and/or after
maintenance, the siphon must
ALWAYS be completely filled with water.
This is a safety measure: the water in the siphon keeps the flue gases from leaking into the
plant room via the condensate drain.