Glow-worm hxi and Gas Valve - Manual (Page 26)

26 0020008153-05
8 Flue Preparation Telescopic and Standard Flue
8.2 (cont'd) Flue and Air Ducts
Telescopic:
The Telescopic Flue system MUST NOT be cut.
Adjust the flue to your required length "Y", mark the securing
hole position in the air duct. Drill a 3mm diameter hole at this
position, take care not to pierce the inner flue duct. Secure with
screw provided and tape the joint, see diagram 8.7.
Standard:
Separate the flue duct from the terminal by twisting to release
the terminal catch, then pull out of the retaining seal, refer to
diagram 8.8.
The duct cutting lengths are shown in diagram 8.8.
The air duct should be cut at the opposite end to the terminal
fixing.
The terminal plastic duct MUST be cut at the opposite end to the
catch.
The plastic flue duct extensions MUST be cut at the opposite
end to seal.
The cut ducts must be de-burred and all filings and debris
removed.
NOTE: If you require to lubricate the seals to ease installation,
please do not use a mineral oil based grease, we would
recommend the use of water.
8.3 Flue Assembly
The flue assembly is a push fit design with securing collars.
Having adjusted the telescopic or cut the air and flue ducts as
described in section 8.2
Assemble the flue elbow to the air duct, ensuring the correct
alignment of the terminal. Fit the collar into position, mark
through two of the pre drilled holes in the collar. Remove collar
and drill two 3mm diameter holes in the elbow,take care not to
pierce the inner flue duct.
Insert the terminal flue duct, remembering to engage the catch
within the terminal, check for alignment.
Fit the rubber sealing collar behind the locating lugs on the flue
terminal, see diagram 8.1.
Push the flue assembly into the wall, externally or internally,
initially until the end of the assembly protrudes a short way from
the inside face of the wall. This will enable the internal trim ring(if
required) to be positioned and allow the flue duct to be drawn
back into the flue elbow after the boiler has been mounted.
8.4 Flue Attachment To Boiler
Secure the flue elbow in position on top of the boiler with four
torque headed screws supplied.
Draw the flue assembly from wall and engage the flue duct into
the elbow and butt fit the air duct, then fit the collar and secure
with screws provided, see diagram 8.9.
NOTE: If the air and flue ducts have been correctly cut to the
instructions given in section 8.2, the rubber sealing collar
should fit flush with the outside wall, check this.
Slide the internal trim ring back against the wall, securing in
place with a small amount of sealant if required.
Diagram 8.8 DUCT CUTTING LENGTHS
12847
Diagram 8.9
12846
TOP TELESCOPIC
AIR DUCT SECURING
Diagram 8.7
AIR DUCT - TELESCOPIC
12852
AIR DUCT
FLUE DUCT
13mm
L
L + 11mm
L
TERMINAL
CATCH