10
10.0 PREPARATION OF HEATER
10.1
Remove Outer Case (Fig 9.)
(a) Remove the outer case by lifting it up and away from the locating hooks.
(b) Remove the tensioning bolt mounting bracket from the underside of the combustion box. This is done by removing the
two fixing screws. Take care not to damage the wires of the ignition unit as this is attached to the same bracket.
10.2
Fit Flue
(a) Place the heater face down taking care to protect any soft surface.
(b) Fit the flue and air ducts to the back of the heater using the gaskets and screws provided. This operation is made
easier by using the screws to tap the holes before assembly. The four screws for the flue duct are already fitted to the
heater. The flanges of the ducts are marked ‘TOP’ to indicate the way in which the ducts are to be fitted. Note:
DO NOT
remove the two middle slotted screws.
Fig. 6A
ADJUST FLUE
LENGTH TO
SUIT WALL
THICKNESS
134mm
SCREWS
FLUE DUCT
SEALING TAPE
FOAM
SEALING STRIP
FLUE TERMINAL
12
5m
m
D
IA
.
‘A’
‘A’
INNER AIR DUCT
INNER AIR DUCT
SCREW
SCREW
TERMINAL
TERMINAL
SEALING TAPE
SEALING TAPE
Fig. 6B
(c) Adjust the flue length: First measure the wall thickness to give the overall length of flue ‘A’. Fit the terminal assembly to
the ducts already fitted to the heater. The top of the assembly is marked ‘TOP’. Set the overall length of the flue to the
dimension ‘A’ (Fig. 6A). Drill 2.7 mm diameter for the fixing screws and secure it with the screws provided. Seal the joint
using the self-adhesive tape provided.
IMPORTANT NOTES:
(i) If rear entry gas supply connection is required, then it
MUST
be installed prior to the installation of the
heater into the wall (see Section 11.1 Rear Entry Gas Connection).
(ii) If front entry gas supply connection from the left or right side is required, then it
MUST
be installed after the
installation of the heater into the wall (see Section 11.2 Front Entry Gas Connection).
(iii) A suitable means of isolation must be fitted in the gas supply line to the heater.
(e) To insert the fixing cables it is necessary to remove the lower air guide. This is done by removing the two fixing screws
and sliding it out (see Fig 4.).
(f) Insert the free end of the cables through the respective holes in the back panel of the heater, and then down through
the cable fixing eyelets. The cables are then inserted through the lower holes in the back panel of the heater and
through the holes in the tensioning bolts. Re-fit the tensioning bolt mounting bracket.
(g) Remove the tape from the foam sealing strip on the terminal. Do not remove the tape before the heater is ready to be
installed as the foam strip commences to expand once the tape is removed. The rate of expansion however, is low and
there will be adequate time to install the heater, after which the foam strip will continue to expand and fill the gap
between the flue and the wall. If for any reason the sealing strip has already expanded before the heater is installed, it
can simply be compressed by hand until it is flush with the surface of the flue.
Fig. 6C
