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Fig 13
REAR FLUE OUTLET
Insert the flue assembly into the wall, making
sure it will not interfere when fixing the boiler
on the wall.
Lift the boiler on the wall, locating onto the
two fixing bolts. Tighten the two bolts using a
spanner to secure to the wall.
Working above the boiler pull the flue duct
towards the elbow in order to engage the
tube into its header (fig.10). Position the flue
elbow in line with the flue and push so as to
locate inner and outer flue correctly. Ensuring
a good seal is made with O-rings. Tighten the
two screws on the flue flange to secure the
elbow header in place.
IMPORTANT:
Terminal rubber wall seal must be fitted
(127 fig.10 item 127).
Each extension length extends the pipe
by approximately 1000 mm long up
to a maximum of seven extensions.
Pipe length can be established using the
instructions in section 5.5. Extensions must
be installed with the widened end of the air
intake pipe and the tapered end of the flue
pipe aimed towards the exhaust terminal.
NOTE: The position of the appliance must provide
minimum side clearances of 5mm as the
side panels do not require removing for
servicing. However, if the option is
preferred to remove the panels then a
minimum clearance of 55mm is required.
Extensions must be joined together with the
standard terminal pipe, and inserted in each
other as far as they can go.
If an extension must be shortened, this must
be done from the straight end, and not from
the widened or tapered end. To measure the
pipeline properly all components must be
assembled and total length measured before
cutting. The straight end of the extension
connects to the boiler. The flue output and air
intake pipes fits into the boiler header until it
stops (fig.17 - 18).
When cutting both inner and outer ducts of
the extension, always ensure that the reduced
end (male) of the inner and outer duct are
square and to the same length.
Summary of Contents for HE 25 S COMPACT
Page 2: ...2...
Page 4: ...4...
Page 5: ...5...
Page 25: ...5 5 FLUE TERMINAL POSITION 25...
Page 54: ...10 ELECTRICAL SYSTEM DIAGRAM 54 Fig 55...
Page 55: ...55 11 SPARE PARTS Fig 56...
Page 61: ...61...
Page 62: ...62...
Page 63: ...63 www centralheating co uk Benchmark Commissioning and Servicing Section...
Page 64: ...64 FLOWCHART FOR CO LEVEL AND COMBUSTION RATIO CHECK ON COMMISSIONING A CONDENSING BOILER...
Page 65: ...65 12 1 ANALYSER CHECK LIST...
Page 66: ......