25
SECTION 10
L.P.G. INSTRUCTIONS
10.3
GAS SUPPLY
The gas supply must be connected to the
appliance by a competent LPG installer and must
be of sufficient size to supply the appliance at its
maximum output.
An existing supply must be checked to ensure
that it is of adequate size to deal with the maximum
rated input of this and any other appliances that
it serves.
10.4
GAS SUPPLY INSTALLATION
The entire installation, including the meter, must
be purged and checked for gas soundness.
10.5
CHECKING AND ADJUSTING BURNER
PRESSURE (see fig. 17)
Although the burner pressure is factory set, it is
necessary to check it during servicing or if the gas
valve has been removed. Isolate the appliance
from the electrical supply and attach a suitable
manometer to the gas valve outlet test nipple.
Remove the compensator tube.
10.5.1 SETTING THE MAXIMUM BURNER
PRESSURE
Light the appliance as described in 5.6 and
compare the reading on the manometer with the
value described in 2.2. If adjustement is required,
remove the protective cap from the gas valve
modulating coil assembly and turn the outer
(10mm) nut clockwise to increase, or counter-
clockwise to decrease the burner pressure.
NOTE
You should ensure that one or two outlets are
open during the above procedure. This will
ensure that the output of the appliance (burner
pressure) is not compromised due to a high
outlet temperature.
For details of converting an appliance to LPG please refer to the instructions supplied with the relevant conversion kit.
10.5.2 SET TING T HE M INIM UM BURNER
PRESSURE
Once the maximum burner pressure has been
checked and/or adjusted, remove one of the grey
wires from the modulating coil. Compare the
reading on the manometer with the value
described in 2.2. If adjustement is required, turn
the inner (red) cross-head screw clockwise to
increase, or counter-clockwise to decrease the
burner pressure, whilst ensuring that the outer
(10mm) nut does not move. When checking and/
or adjustement has been completed, isolate the
appliance from the electrical supply, replace the
protective cap, refit the compensator tube, refit
the grey wire to the modulating coil, remove the
manometer, and tighten the outlet test nipple.
IMPORTANT, A GAS SOUNDNESS CHECK
MUST BE CARRIED OUT.
10.1 TECHNICAL DATA
10.2 RELATED DOCUMENTS
BS 5440
BS 5440
BS 5546
BS 6891
BS 5482
PART 2
PART 1
PART 1
FLUES
FLUES & VENTILATION
INSTALLATION OF GAS HOT WATER SUPPLIES FOR DOMESTIC PURPOSES
LOW PRESSURE INSTALLATION PIPES
DOMESTIC BUTANE & PROPANE GAS BURNERS IN PERMAMENT DWELLINGS
Inlet pressure (LPG)
Maximum burner pressure
Minimum burner pressure
Gas rate
Injector size
37 mbar
36 mbar
3,0 mbar
1,33m
3
/h
15 x 0,77mm
