Potterton Housewarmer 45 Installation & Service Instructions Manual page 13

4. Installation – Page 13
4) Locate the boiler in the fireplace opening ensuring that
the 'V' in the front plate is about the centreline of the
opening and horizontally aligned with the front
opening.
5) Offer the spigot hood up to the flue hood to ensure it
will fit inside the front opening.
6) Mark the position of the fixing holes, move the boiler
clear of the marked points then drill and plug the
holes.
7) Position the boiler back over the holes and secure to
the floor with the 2 No. 8 x 1" Pozi Woodscrews
provided.
8) Run the gas supply preferably from the right hand side
of the opening. If the gas supply comes in from the left
it must cross to the right, behind the boiler if possible.
If crossing the front of the boiler, ensure that it will not
obstruct removal of the burner tray (when
fitted).The gas
supply pipe in the opening should be protected by
wrapping in PVC tape.
Note: The flue hood can be removed (4 nuts) to improve
access when connecting the system pipework. Ensure
the rope seal is correctly aligned on re-assembly.
Remember ! The burner/gas valve assembly will be fitted
later, ensure the system pipework will not pass through this
area.
9) Connect the system pipework to the boiler. A drain
off tap should be installed close to the boiler if it is
in a low point of the system.
Note: On combined Gravity DHW Pumped Heating
Systems the injector tee must be fitted directly to
the boiler. The tee on the combined flows is to be
fitted as close to the boiler as possible.
10) Effectively seal all openings around the system
pipework
11) Connect the flue liner to the socket on the flue hood
using the 2 screws fitted to the socket. Seal the
joint with a suitable material.
12) Remove the top two screws from the draft diverter,
locate the flue hood extension and secure using the
screws removed.
Before Securing
The Boiler Check
To See If It Is
Central By
Placing The
Flue Hood
Extension
In Position
Line The Boiler
Up With The
Front Of The
Fire Place
Opening
Fixing
Holes
Fig. 12
28mm
28mm (O/D)
Fig. 14
D.H.W.
Gravity Return
Centre
Line
Flue
Liner
Flue Liner
Securing
Screw
Draft
Diverter
Fit Flow
Connection
Fit Return
Connection
Fig. 13
Injec tor T ee
22mm (O/D)
C.H. Return
Can be
installed
in any
direction