Strebel S-CB+ Series, Installation Operating & Maintenance Manual

Page: 92 / 125

S-CB
+
Boiler Range Manual
92
13 STARTING THE BOILER
13.1 General
Check the 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 graphs on page 95 show the position of the pressure nipple (3) for the complete boiler range.
The gas input pressure for the boiler to operate properly under the correct load must be
more than 20 mbar at
high fire .
For Ls gas G2.350, used in parts of Poland, a B+J gas valve must be installed in the A
+
80, A
+
100,
A
+
150 and A
+
180 boilers. See also page 93 ff. and page 96.
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 there is a heat demand activated

The temperature setting

The temperature measured
When mounting the bottom part of the siphon, before commissioning the boiler and/or after
maintenance, it must
ALWAYS be completely filled with water.
This is a safety measure: the water in the siphon keeps the flue gases from leaking
out of the heat exchanger via the condensate drain.
When the boiler receives a heat demand the electronics will start the operation of the boiler. Before the boiler is
used, the boiler burner must be adjusted and set at the minimum and maximum load.
The siphon must always be filled with
water to the edge before placing back
on the unit