Gas Connection; Check Gas Pressure & Operation Of Fire - Potterton Hallmark Installation & Service Instructions Manual

4. Installation - Page 9
4.8. Prepare The Fire Connection Cont.
IMPORTANT:
In all Installations, a means of isolating the main gas
supply must be fitted close to the fire, so the fire can
easily be removed for servicing.
When the fire is in position, the air relief opening is covered
by a deflector plate fastened to the back of the fire. See Fig.
14.
The deflector plate also covers the elbow union and must be
pivoted open before installation can take place, so proceed
as follows:
a) Remove the screw on the right of the deflector plate.
b) Open it by swinging it to the left.

4.8.1. Gas Connection

The fire can now be connected to the gas supply using left or
right hand side entry or rear entry as required.
If a concealed connection is required from the rear of the fire,
it will be necessary to cut a small clearance slot in the
closure plate.
5. Check Gas Pressure & Operation Of Fire
The test point screw is located on the Right hand side of the
fire under the gas tap.
a) Remove the pressure test point screw and connect a
pressure gauge. See Fig 15.
b) Carefully unpack the radiants. Insert the radiants under
the canopy, lift the bottom edge over the flange of the
radiant support plate and slide the radiant down behind
the rib of the radiant support. See Fig. 16.
Note: It is essential that the radiant falls forward
against the inside edge of the canopy.
c) Fit the control knob.
d) Turn ON the gas supply and test all joints for gas
soundness. Then purge the installation in accordance
with B56891.
e) Push in the control knob and turn slowly anticlockwise,
until a loud click is heard. The burner should be lit.
It may be necessary to repeat this operation several times
before all the air is purged from the line. Push in and turn the
knob clockwise back to '0' between each attempt.
Part No. 900/9350/1
Supplied By www.heating spares.co Tel. 0161 620 6677
Installation/Check Gas Pressure & Operation of Fire 9