Baxi Potterton Gold HE A Range For Roof Terminals, Flue Dimensions, Flue Trim, Flue Deflector Fig

			8.0		Flue Options
					For Roof Terminals
				8.6
			1. In the case of a pitched roof 25 - 50 degrees, position the lead
		Approx	tile to replace/flash over existing roof tiling. Make an aperture in
		1425mm	the roof suitable for the lower tube of the roof terminal and
			ensure the integrity of the roof cover is maintained. The
			adjustable plastic collar can either be positioned on the lead tile
			or the lower tube of the roof terminal prior to the final
			positioning of the vertical flue through the tile. Check the collar is
			correctly located to suit required roof pitch (either 25° to 38° or
			37° to 50°). From inside the roof adjust the flue to a vertical
			position and secure to the roof structure with the clamp supplied.
			2. For flat roof installations the aluminium flashing must be
			incorporated into the roof covering and the appropriate aperture
			made in the roof decking. The vertical flue is lowered onto the
Cut the same	Air Duct		flashing making sure the collar of the flue locates securely with the
			flashing. (A mastic seal may be necessary). From inside the roof,
amount off the
			adjust the flue to a vertical position and secure to the roof
Air Duct &
Flue Duct	Flue Duct		structure with the clamp supplied.
			IMPORTANT: If the boiler is not fitted immediately after the flue
	Push Fit Adaptor		system, temporary precautions must be taken to prevent rain
			entry into the room of installation. Any precautionary measures
			must be removed prior to commissioning the boiler.

8.7 Flue Dimensions

The standard horizontal telescopic flue kit allows for lengths between 100mm and 685mm from elbow to terminal (Fig. 19).

The maximum permissible equivalent flue length is: 10 metres (60/100 system)

20 metres (80/125 system)

Flue Deflector

8.8 Flue Trim

Fig. 19

Fig. 21

1. The rubber flue trim supplied may be fitted to either the outside wall or on the inner wall of installation.

Fig. 20 8.9 Terminal Guard (Fig. 21)

1.When codes of practice dictate the use of terminal guards, they can be obtained from most Plumbers’ and Builders’ Merchants.

2.There must be a clearance of at least 50mm between any part of the terminal and the guard.

3.When ordering a terminal guard, quote the appliance name and model number.

4.The flue terminal guard should be positioned centrally over the

terminal and fixed as illustrated.

8.10Flue Deflector (Fig. 20)

1.If required, push the flue deflector over the terminal end and

rotate to the optimum angle for deflecting plume. Secure the deflector to the terminal with screws provided.

© Baxi Heating UK Ltd 2008 23