Side Flue; Rear Flue; Air/Flue Duct Assembly - Potterton Profile 30e Installation And Servicing Instructions

INSTALLATION INSTRUCTIONS - Page 12
FIG. 11a SIDE FLUE
1. Measure from outside face of wall to the side of boiler
casing reference line (dimension 'x').
2. Take air/flue duct assembly and measuring from the
flanged end, mark and cut the outer duct and inner flue
duct to dimension 'x' plus 20mm. Ensure that both
ducts are cut squarely.
FIG. 12 AIR/FLUE DUCT ASSEMBLY
NOTE: During assembly the seam in the air duct should be
so arranged that when installed, the seam in the duct will be
uppermost.
1. Slide rope sealing ring on to air duct.
2. Engage the terminal on to the ends of the inner flue
duct and press fully home.
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CUTTING AIR/FLUE DUCTS
1. Measure wall thickness (dimension 'Y').
2. Take air/flue duct assembly and measuring from the
flanged end, mark and cut the outer air duct and inner
flue duct to dimension 'Y', plus 45 mm. Ensure that
both ducts are cut squarely.
NOTE
Cutting length remains the same for minimum or
maximum clearance at the rear of the boiler.
3. Engage four screws from accessory pack 'C' into the
pre-drilled holes in the terminal and screw fully home.
These screws which are self drilling will pierce the air
duct and secure the terminal to air duct.
On models 30e, to 50e, it is necessary to drill four pilot
holes in the air duct.
FIG. 11b REAR FLUE