Wall Mounting Template; Preparing The Wall - Keston HEAT 2 45 Installation & Servicing

2.4 WALL MOUNTING TEMPLATE

Note. The template shows the positions for the
top fixing holes. Care must be taken to ensure
the correct holes are drilled.
1. Tape template into the selected position.
2. Ensure squareness by hanging a plumbline.
3. Mark on to the wall:
a. The top 4 wall mounting plate screw
positions.
b. The 2 boiler lower fixing positions using
diagram below
c. The position of the flue duct. Mark
the centre of the hole as well as the
circumference.
4. Remove the template from the wall.
BOILER LOWER FIXING POSITIONS
Ø12mm
332 mm

2.5 PREPARING THE WALL

IMPORTANT. The wall must be vertical 90º (±5º)
from the perpendicular to allow safe operation of
the integral flue non-return valve.
Ensure that, during the cutting operation, masonry
falling outside of the building does not cause
damage or personal injury.
1. Drill 4 boiler top fixing holes with a 12mm
masonry drill and insert the plastic plugs
provided, for the wall mounting plate.
2. Drill the 2 boiler lower fixing holes with a 12mm
masonry drill, insert the plastic plugs provided .
3. Fix the wall bracket into place with 4 M10x70
hex head coach screws provided.
16
SECTION 2 - INSTALLATION
Note: Horizontal flue runs must be
inclined at 1.5-3
condensate to drain back to the boiler.
X
to the horizontal to allow
o
120
Vertical Offset From X mm
Y
2m
4m
6m
Distance from flue centre line (Y) to outside wall surface.
For lengths greater than 8m, increase offset (X) by 60mm
for every additional 1m.
Does not apply to air intake.
245 365 490
8m
Installation & Servicing