20
Outer seal
Inner seal
Flue elbow
Fixing plate
Square gasket
Adapter
Concentric flue pipe
Fig. 4.9
Flue elbow
Flue pipe
Inner seal
Outer seal
Fig. 4.7
Fig. 4.8
4.6 'C' TYPE CONCENTRIC FLUE KITS
Convert the boiler from the factory supplied 'B23' type configuration to 'C' type, i.e. room sealed concentric flue by removing
the 80 mm dia. adaptor and four screws securing the fixing plate and gasket from the top of the boiler.
Horizontal through the wall concentric flue kit - see Fig. 4.9 and 4.10.
Fig. 4.9 shows the flue kit parts that need to be fitted to the boiler to ensure the room sealed concentric flue can be used.
To assemble the kit to the boiler - Fit the adapter into the central flue outlet on the top of the boiler up to the stop. Slide the
square gasket over the adapter up to the groove, then fix it to the cover by means of the previously removed fixing plate and
four screws. Fit the male end of the flue elbow up to the stop on the adapter. Place the outer seal over the concentric flue
pipe and slide it through the wall from the outside. Place the inner seal over the concentric flue pipe then insert the pipe into
the elbow up to the stop. Slide the seals along the duct to seal it to the inside and outside of the wall.
To install extensions or other flue components, proceed as follows: fit the male end (smooth) of the concentric pipe or
concentric elbow up to the stop on the female socket (with lip seals) of the previously installed component, this will ensure a
secure fit and seal of the joints.
Note:
To prevent condensate lying in the flue pipe, slope the pipe towards the boilers with a minimum slope of 3° (25 - 30
mm per metre). When installing the extensions, a wall/ceiling mounted clamp must be installed every 1.5 metres.
100 mm
100 mm
170 mm
Note: Ensure the flue slopes downwards towards
the boiler by a minimum of 25 to 30 mm per metre (2.5° to 3°)
L Max.
Pro Tec 50
Pro Tec 70
Pro Tec 90
Pro Tec 115
30 m
28 m
14 m
8.5 m
L Max.
Alpha Pro Tec - Installation