7
6. INSTALLATION TO FIREPLACE
Cable Retention
Cables and eyebolts are
supplied for the
retention of the
appliance. Ensure that
the internal fireplace
components are
sufficiently sound to
take the eyebolts and
wall plugs. These
should be fitted in
accordance with Figure
10, using the wall plugs
and a No.10 drill. Use only the fibre wall plugs supplied (or
similar).
On no account should plastic wall plugs be used
.
Assemble the cables through the eyelets and holes in the lower
sides of the appliance. Fit adjusters as shown in figure 11.
With the adjusters fully screwed in, carefully manoeuvre the
appliance into the fireplace opening. Take up any slack in the
cables. Tighten the screws in the adjusters to secure the cables.
Apply tension to the cables by turning the hexagonal adjusters
so that the foam seals are compressed. Do not overtighten. If
the sealing foam does not fully compress, the cables may need
to be released by loosening the adjuster screws and pulled up
tighter before re-tightening the screws. Do not cut off any
excess cable, instead coil up the cables against the flanges to
allow easy removal and refitting during future servicing.
Floor Sealing
Using the floor
sealing tape
supplied, seal the
bottom of the
convection box to
the fireplace and
hearth floor. Run
the tape over the
burner-fixing
bracket. See figure
12.
Gas Connection
•
Put the burner unit in position in the firebox. without
refitting the retaining screw at this stage.
•
Cut and shape the gas supply pipe to suit the direction of
entry and gas inlet fitting position. For right hand side
connection the supply pipe will have to be formed to go
behind the control knob and burner support bracket.
•
Refit and tighten the burner retaining screw.
•
Connect the supply line to the appliance.
•
Pressure check the installation pipework for gas
soundness in accordance with the current edition of
BS6891. A long brush may be required to reach some
joints.
Preliminary Burner Checks
Some burner operations can be checked at this stage.
Checking now will mean that less disassembly will be required
it any problems are found.
A full check should still be made, however, after final
installation.
•
If closed, open the isolating valve at the inlet elbow.
•
Depress the control knob and turn anticlockwise partially
towards the “
PILOT/IGN
” position until some
resistance is felt. Keep depressed at this position to purge
air from the system then, while keeping it depressed, turn
fully to the “
PILOT/IGN
” position. A spark should be
generated at the pilot while turning. The spark should
ignite the pilot. If not turn the control knob back to the
off position and repeat the procedure.
•
When pilot ignition has been achieved, keep the control
knob depressed for approximately ten seconds to allow
the thermocouple probe to warm up and then release it.
If the pilot does not remain alight, ensure that the air has
been purged, that the pilot orifice is clear and that the
thermocouple connections are sound. Replace the pilot
unit if necessary (see servicing section of this manual).
•
When the pilot is alight and stable, partially depress the
knob and turn to “
LOW
”.
The pilot should then light
the main burner at its low setting. There may be a delay
of up to four seconds between the pilot lighting and
ignition of the gas at the main burner. This is normal and
is due to the time required to fill the main burner
compartment with sufficient gas for ignition.
•
When the burner is operating properly, partially depress
the control knob and gradually turn it anti-clockwise.
The burner flames should gradually increase until the
knob reaches the “
HIGH
” position.
•
When the above checks have been completed partially
depress the control knob and turn to “OFF”.
•
If the above checks are satisfactory, continue with the
installation. If not, check the control and ignition
circuitry and components as described in the servicing
section of this manual.
Check Reference Pressure
The appliance is pre-set to give the correct heat input at the
inlet pressure shown in the Technical Specification section of
this manual. No adjustment is necessary.
•
Check the burner pressure by fitting a pressure gauge at
the test point. The test point is on the pipe situated
below the bottom right corner of the burner unit.
•
Check the pressure with the appliance alight and set at
maximum output.
•
After checking, turn off the appliance. Remove the
pressure gauge and replace the test point sealing screw.
•
Relight the appliance. Turn to the maximum output
position and test around the sealing screw for gas
soundness with a suitable leak detection fluid.
Figure 10
Figure 11 Cable Adjustment
Figure 12
