Glow-worm Ultracom sxi - Manual (Page 28)

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10 Vertical - Flue Length, Preparation and Installation
14849
Diagram 10.19
Flue Installation
IMPORTANT:-
The flue seals are sensitive to mineral oil based lubricants.
Do not grease the seals. If the seals do need to be
lubricated use only water.
During the installation of the flue system, ensure that debris
such as mortar, filings or swarf are cleared from the flue
system before completion.
Long lengths of flues must be secured to the walls or ceilings
they run against. Use at least one fixing bracket for every flue
extension that is used.
After cutting inner flue tubes ensure that you de-burr and
chamfer the male tube end to prevent damage.
Inspect the flue pipes before fitting and do not install
damaged or dented flue components.
When assembling the flue system, ensure that the inner
seals are not damaged, do not install a flue component with a
damaged seal.
When fitting flue elbows ensure that they are fitted at the
correct angle to avoid strain, this will ensure that the seal fits
correctly preventing leakage.
Refer to diagram 10.21 and secure the flue adapter in position
on top of the boiler with four screws supplied, making sure
the nib fits into the locating slot in the boiler casing to ensure
correct orientation.
Secure the first extension pipe to the flue adapter with the
securing collar supplied by positioning the collar centrally over
the joint, then tighten the two screws on the securing collar,
see diagram 10.22.
Fit more extension pipes as required using the collar and
screws supplied with each extension pipe. To fit position the
collar centrally over the joint, tighten the two screws on the
securing collar. Using the holes provided in the securing
collar drill and insert the two self tapping screws supplied, see
diagram 10.23.
Project the rise of the flue pipe to roof level and cut a 150mm
hole in the roof.
Flue Terminal Installation
(a) Pitched Roof
Fit the required pitched roof weather collar over the 150mm
hole in the roof. Make good the tiling or slating around the
collar incorporating the flashing of the weather collar. Position
the angle cap over the weather collar in the correct orientation
to attain the correct angle for your roof.
(b) Flat Roof
Fit the aluminium weather collar over the 150mm hole in the
roof ensuring a weather tight seal.
From above carefully place the flue terminal through the
weather collar.
Flue Terminal to Boiler Connection
Should the clearances above the boiler to roof not allow for
extensions, it is permitted to cut the flue terminal ensuring the
relationship of flue and air duct lengths are retained.