COMMISSIONING INSTRUCTIONS
TR05A153.B1107
49
5.9 Converting to a different gas type
The conversion of a boiler from burning natural gas to
LPG, or vice versa, must only be carried out by
professionally
qualified
personnel
registered
in
accordance with current legislation.
Before carrying out a conversion, ensure that the gas
supply pipe is suitable for the new fuel type.
Conversion of this appliance is performed as follows:
a.
Isolate the electricity, water and gas supplies to the appliance;
b.
Substitute the jets on the main burner as follows:
•
Undo the gas pipe (item 5 of Figure 39) from the burner
manifold using a 24mm spanner;
•
Separate the burner manifold (item 6) from the burner
ramps (item 7) by undoing the 4 screws (item 11);
•
Fit new jets (item 8) (suitable for the new gas type) to the burner using a 7mm spanner and fitting with new
gaskets;
•
Reassemble the entire burner unit.
•
Turn on the gas supply and check for leaks using soapy water or leak detector spray;
d.
Program the new control parameters (maximum & minimum gas pressures) (see Sections 5.6);
e.
Replace the appliance gas data plate so as to indicate the new gas type and gas data for the boiler. A new label
will be provided in the conversion fittings kit.
2
5
3
4
1
9
7
10
8
5
6
7
11
8
6
Figure 39: Gas type convertion
LEGEND
:
1.
GAS VALVE
2.
STABILISER
3.
INLET PRESSURE POINT
4.
OUTLET PRESSURE POINT
5.
GAS PIPE
6.
BURNER MANIFOLD
7.
RAMP GAS BURNER
8.
INJECTORS
9.
IGNITION ELECTRODES
10.
FLAME IONISATION ELECTRODES
11.
MANIFOLD SECURING SCREW
