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

Page: 117 / 125

S-CB
+
Boiler Range Manual
117
During service and maintenance the gas, supply air, flue gas and condensate connections are discon-
nected, checked and replaced. Make sure that all these components are mounted correctly before com-
missioning the boiler again.
Cleaning the burner room with acid or alkali products is prohibited.
Mounting the burner door correctly back onto the heat
exchanger:
IMPORTANT:
Before mounting the burner door, make sure that its gas-
kets and insulation are in excellent shape.
If any signs of damage or ageing are present, these parts
must be replaced.
The burner door must be mounted back on the heat ex-
changer as follows:
- Place the burner door with its holes over the six thread-
ed studs.
Careful! When handling too rough or misplacing the
holes over the threaded studs, the burner door insula-
tion and/or gaskets can be damaged.
Assure yourself that the door is well positioned with res-
pect to the threaded studs, before pushing it onto the
exchanger.
- Now keep the burner door firmly in place by pushing the
gas/air nose with one hand at the middle at point A.
- Then turn-tighten the flange nuts with the other hand as
far as possible onto the threaded studs.
Now the burner door is in place and the nuts can be tight-
ened with a torque key.
- Tighten the nuts in the order given in the picture
- The specified torque value for tightening the bur-
ner door flange nuts is
8 Nm
tighten in given order.
torque value = 8 Nm
18 USER INSTRUCTIONS
After installing and commissioning of the boiler, demonstrate the operation of the entire central heating system to
the end-user. The user should be made familiar with all safety precautions of the boiler and the installation. The
user should be instructed that service and maintenance of the boiler is required every twelve months. Regular ser-
vice and maintenance is essential for a safe and proper operation of the boiler. Hand over the documents supplied
with the boiler.