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Upper Plate
R e
a r
F lu
e -
Lower Plate
Fig. 24
Flow Pipe
Fig. 26
1
2
Fig. 28
10
Template
D r
il l
H o
le
Ø 1
2 5
Priming
m m
U p
p e
r P
la t
e
L o
w e
r P
la t
e
Inlet Pipe
Fig. 25
1
Fig. 27
Fig. 29
4.0 Installation
4.4
IMPORTANT: Follow the Installation & Servicing
Instructions supplied with the boiler to the point at
which the wall plate is fitted, but do not mark the flue
position. The Assure FGHR must be fitted on a flat
vertical surface.
1. Align the Assure FGHR template on the wall (Fig. 24)
and mark the positions of suitable fixing points on the
upper and lower plates of the wall frame.
2. Drill & plug the fixing points and cut the hole for the flue
Ø116 mm. Secure the frame and hang the boiler on the
lower plate (Fig. 25). Prime the boiler trap by pouring
300 ml of clean cold water into the central spigot. Do not
allow any water to spill into the air chamber.
3. After identifying the FGHR inlet and flow pipes (Fig. 26),
manoeuvre them into place behind the boiler.
4. Undo the screws securing the top flue adaptor and
remove the adaptor. Retain the screws & adaptor for re-
use. Extract the blanking cap and discard, recycling where
3
possible. Refit the adaptor and secure with the screws
previously removed (Fig. 27).
2
5. The Assure FGHR can now be fitted (Figs. 28 & 29).
Locate the slots in the rear on the upper plate and flue
connection on the underside of the Assure FGHR in the
boiler adaptor, taking care to not displace the seals.
6. The flue system can now be installed (Fig. 30). Follow the
method described in the boiler Installation & Service Manual.
The flue adaptor on top of the Assure FGHR is similar to
that on the boiler.
7. Connect the flow & inlet pipes to the fittings on the
underside of the FGHR unit ensuring that the sealing
washers are in place.
8. Continue with the installation and commissioning of the
boiler.
Installation - Horizontal Rear Flues with Elbow
720642701, 720598701 & 720599401
Fig. 30
Rear Flue with Elbow
fitted to FGHR
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