Technical data

10
Fig. 9
Alpha SY9-24 - Installation
4 INSTALLATION
4.1 UNPACKING
1. The boxes required when the boiler is installed with a horizontal flue are as follows:-
Box 1 Cased boiler fitted with water and gas valves, union bends and washers
Mounting bracket plus screws and wall plugs
Flue terminal and flue sealing collar plus 2 screws
Literature pack and Wall template
Box 2 90° flue bend (not required for vertical flue)
Box 3 0.75 m flue (for side and rear flue) with two clamps and inner duct support
Note: If an Easy flue 500 mm is ordered, this will be supplied instead of boxes 2 and 3.
2. Unpack boiler and remove the loose items packs, i.e. mounting bracket, flue terminal and collar.
Note: The boiler can be stood in an upright position supported by the bottom tray, (to allow this, the union bends have
been turned upwards so that they do not protrude beneath the bottom tray - check this before standing the boiler on the
bottom tray).
4.2 CLEARANCES REQUIRED - Fig. 8
Fig. 8
4.3 PREPARE THE WALL - Figs. 9, 10
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. Side exit flue - Continue the horizontal centre line of
the flue across the wall to the side wall, then along the
side wall 215 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 (or use a 107 mm
core drill) in the wall for the flue.
Note: For internal fitting of the flue, using the flue
sealing collar supplied, cut a 127 mm dia. flue hole
using a 127 mm core drill.
5. Drill the fixing holes (10 mm dia.) to accept the No.10
plugs supplied. Using the screws supplied, fit the
mounting bracket.
6. Top pipe connections - Preform the pipework at the back of the boiler before hanging the boiler, see Fig. 10, and secure in
the clips provided.