13
221788B
5 Boiler Installation
5.1 Mounting the Boiler
Remove the boiler from the carton tray.
If necessary, for a gravity domestic hot water system cut the
pipes as shown in diagram 3.3.
Stand boiler upright on the packaging, to protect the paintwork.
Stick the foam seal around the boiler flange, at the back, making
sure it is a tight fit, around the corners, see diagram 5.1.
Fit suitable fittings to the pipework.
Now make sure that the top, swing brackets are UPRIGHT, see
diagram 5.2.
Lift the boiler into position, hooking over the bottom wall bracket.
Swing the brackets over the two screws at the top and secure,
see diagram 5.2.
Secure the boiler to the flange on the wall duct, see diagram 5.3.
Note. For a short flue it will be necessary to cut the balanced flue
assembly, see Table 4.
Take the balanced flue assembly from its carton and remove the
four screws to release the outer baffle, wire guards and inner
baffle flue duct assembly, from the air duct assembly, see
diagram 5.4.
From the outside place the air duct assembly into the hole in the
wall, fit it around the wall duct, slide in until the wall plate touches
the wall surface. Make sure the air duct wire guards are in
position.
Seal the joint in the air ducts with the yellow tape provided. Tape
four pieces into the four inside corners, followed by four along
the joints overlapping the corner pieces, to make a good seal,
see diagram 5.4A. Allow a minimum of 20mm (
3
/
4
in) overlap of
the ductings.
Take the flue hood assembly, remove the access door, secure
the assembly to the boiler, with the screws provided in the loose
items pack, see diagram 5.5.
Place the inner baffle and flue duct assembly into the hole in the
wall outside, fit it around the flue duct on the boiler and slide it
in until it touches the air duct assembly wire guards.
Seal the flue duct joint on the inside with the heat resistant semi-
transparent tape provided, see diagram 5.4A.
Cement around the wall plate.
To complete the flue terminal assembly, refit wire guards, outer
baffle and secure with screws.
Fit the boiler flue baffles, see diagram 5.6.
Refit the flue access door.
Diagram 5.1
Diagram 5.2
3799
FOAM
SEAL
3800
SWING
BRACKET
PIPES
REMOVED
FOR CLARITY
SECURING
SCREW (2)
MOUNTING
BRACKET
MOUNTING THE BOILER
