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7.3
SEAL THE FLOOR FRONT
(ALL INSTALLATIONS)
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 15).
8.
8.1
Refit the burner unit to the convection box with
three screws.
8.2
Locate the two lugs at the top of the front
surround in the slots in the convection box hood. Swing the
bottom of the surround sides back against the convection
box and lower the surround so that the lugs are fully seated
in the slots in the convection box hood.
8.3
Refit the two screws to secure the surround
sides to the convection box brackets.
8.4
Connect the supply line to the appliance.
For right hand side connection. The supply pipe will have to
be formed to go behind the control knob and burner
support bracket. The installation template contains a
diagram for bending this supply pipe.
8.5
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
8.6
PRELIMINARY BURNER CHECKS
Some burner operations can be checked at this stage.
Checking now will mean that less disassembly will be
required if any problems are found. A full check should still
be made, however, after final installation.
8.6.1
,
If closed
open the isolating valve at the inlet elbow.
8.6.2
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
8.6.3
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).
8.6.4
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.
8.6.5
When the burner is operating properly, partially
depress the control knob and gradually turn it anti-
BURNER, FRONT SURROUND & SUPPLY PIPE INSTALLATION
Fig. 15 Floor sealing
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".
8.6.6
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.
8.7
CHECK REFERENCE PRESSURE
The appliance is pre-set to give the correct heat input at the
inlet pressure shown in section 1 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 (See figure 16). 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
Fig. 16 Pressure test point
position and test around the sealing screw for gas
soundness with a suitable leak detection fluid.
12
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