Baxi Potterton Gold FSB 30 HE manual Fitting the Standard Flue, Flue Inner Flue Support Bracket

Wall Thickness

10.0Installation

10.5Fitting the Standard Flue

At least

1.5°

Fig. 26

Waste

Edge of Boiler Case to Wall

Wall Thickness

(Z)= Side Exit

(X)= Rear Exit

IMPORTANT: The flue should always be installed with at least 1.5° fall from terminal to elbow, to allow condensate to run back to the boiler.

1.The standard flue is suitable for lengths 270mm minimum to 800mm maximum (measured from the edge of the flue elbow outlet).

Rear Flue: maximum wall thickness - 575mm

Side Flue: maximum wall thickness - 535mm

2.For rear exit - measure the wall thickness (Fig. 26) and to this dimension add 270mm. This dimension to be known as (X).

i.e. (X) = wall thickness + 270

3.Take the flue and mark off (X) from the terminal end as indicated in the diagram (Fig. 27).

4.For side exit - measure the distance from the edge of the boiler case to the inner face of the wall (Fig. 26) and to this dimension add the wall thickness + 280mm. This dimension to be known as (Z).

i.e. (Z) = case to wall + wall thickness + 280

5.Take the flue and mark off (Z) from the terminal end as indicated (Fig. 27).

Before cutting check your dimensions !

6.The flue tubes are fixed together. Cut through both tubes whilst resting the flue on the semi-circular packing pieces. Deburr both tube ends.

NOTE: When cutting ensure the cut does not interfere with the inner flue support bracket (Fig. 27a).