Technical data

12
4.1 UNPACKING
1. The boxes required when the boiler is installed with a horizontal flue are as follows:-
Box 1 Cased boiler
Water and gas valves plus washers
Water fittings
Mounting bracket plus screws and wall plugs
Flue terminal and wall sealing plate plus 2 screws and mastic
Literature pack and Wall template
Box 2 90° flue bend with clamp (not required for vertical flue)
Box 3 0.75 m flue (for side and rear flue) with two clamps and inner duct support
Box 4 Pressure reducing valve
5 litre expansion vessel, mounting bracket plus screws and wall plugs
Tundish
Expansion relief valve/check valve
2. Unpack boiler and remove loose items packs.
3. Remove the two screws at the top of the front casing. Slide it up and lift it off.
4.2 CLEARANCES REQUIRED - Fig. 10
Alpha 500E - Installation
4 INSTALLATION
4.3 PREPARE THE WALL - Fig. 11
1. Decide upon the position of the boiler taking into
account the clearances required for servicing and
the flue terminal position.
2. Tape the template to the wall (ensure it is level
and the right way up) and mark the position of the
holes for the boiler mounting bracket and bottom
fixings. If rear exit flue is used, mark the position
of the hole for the flue.
3. If side exit flue is to be used, continue the horizontal
centre line of the flue across the wall to the side wall,
then along the side wall 160 mm (ensure the lines
are horizontal). This will give the position of the
centre of the hole for the flue.
4. Cut the 110 mm diameter hole in the wall for the
flue.
5. Drill the fixing holes (8 mm dia.) to accept the plugs
supplied. Using the washers supplied with the screws,
fit the mounting bracket.
Fig. 10
Fig. 11
200 mm
20 mm
5 mm
600 mm
250 mm
450 mm
950 mm
Minimum
clearance
of 450 mm
from front
of boiler
175 mm
425 mm
Rear exit hole
110 mm dia.
Position of
110 mm hole
to be cut for
side exit
flue
Bottom
fixing holes
Ensure line is level
Wall
mounting
bracket
Side
wall
160 mm
Boiler
outline
Template
Fixing
holes
120 mm