Remember the flue pipe must slope downwards back towards the boiler and this
is best achieved using 92.5
o
bends.
a
Using the template supplied within the boiler packaging mark the
positions of the two holes for the flue and air pipes on the wall(s) or
ceiling.
b
Drill the two holes in the wall/ceiling, preferably using a core drill.
c
Measure, cut and check the air and flue pipes to pass to the exit from the
wall(s) or ceiling.
Always thoroughly deburr all pipes and, most important, remove shavings from
within the pipe.
d
Mount the boiler on the wall bracket and fix the flue and air spigots
(packed loose with the boiler and with appropriate gaskets) to the boiler
flue and air outlet connections (the flue spigot incorporates a combustion
test plug) tightly to ensure there is no leakage. Assemble, using adhesive,
the pipework from the boiler connections to the exit from the first
wall/ceiling (remount the boiler if removed). When pushing pipe through
walls, ensure grit and dust is not allowed to enter the pipe.
Ensure pipes are fully engaged into sockets.
Connect the condensate drainage system and fill the condensate
trap by pouring water down the boiler flue spigot ( See Section 3.5
Condensate Drainage).
e
Using the same methods drill any further holes (always covering existing
pipework), cut and assemble the pipework.
f
From outside, complete the two terminations - See Section 2.8 Flue
System and make good all holes.
g
Support any pipes whose route could be displaced either of its own
accord or by accident. Any horizontal run over 1m or vertical runs of any
length must always be supported. Brackets should be placed at intervals
of approximately 1m.
h
Check all connections for security and re-seal any joints using solvent
cement where soundness may be in doubt.
Note:
It is equally important to seal the air inlet with solvent cement as the flue
outlet pipe joints.
3.5
CONDENSATE DRAINAGE
NB:
When installing the boiler for the first time or ever, consider:
Condensate Trap Assembly
The condensate trap is fitted loose inside the cabinet.
i)
remove the nut from the condensate trap spigot;
ii)
fit the condensate trap through the two holes in the bottom of the
frame;
iii)
replace the nut from the frame bottom
Connect the condensate drainage system to the boiler. It is advisable to use a detachable
fitting at connection to the boiler to enable easy removal for servicing.
Fill the condensate trap by pouring water into the boiler flue spigot until water is seen to
flow freely from the condensate drainage system. Make the final connection of flue pipe to
the boiler.
Details are provided in Chapter 2 - Section 2.11 Condensate Drainage
Connection :
22 mm plastic pipe.
WD536
Chapter 3 : Installation
The Keston C45, C40P,C55 & C55P
Installation & Servicing Instructions
Page : 20