19
Gas Conversion and Specifications
Gas Regulator
NOTE:
Gas regulator supplied is
convertible between Natural
Gas and LP Gas, but it’s outlet
pressure is fixed ex-factory and
is NOT to be adjusted.
Gas Type Labels
On completion of gas conversion, replace gas type labels located at:-
- Rear of unit, above the gas connection point.
- Beside rating plate.
Commissioning
Before leaving installation;
1.
Check all gas connections for leakage using soapy water or other gas detecting equipment.
2.
Carry out a ‘Commissioning’ check of the appliance as shown in Installation Section of this manual.
3.
Ensure any adjustments done to components that have adjustments / settings paint sealed, these
are to be re-sealed.
Gas Specifications
Appliance Classification
Category:
II
2H3P
(20, 30 / 37),
II
2H3B/P
(20, 30).
Flue Type:
A
1.
NOTE:
* - Measure burner operating pressure at manifold test point with one burner for CH8300
Model or two burners for other models operating at full setting. Operating pressure is
ex-factory set and not to be adjusted, apart from when converting between gases, if
required. (Refer to ‘Gas Conversion’ section for details).
NOTE, Pin rotated
for Natural Gas
NOTE, Pin rotated
for LPG
D
O
NOT
USE
A
NAKED
FLAME
TO
CHECK
FOR
GAS
LEAKAGES
.
Warning
Natural Gas
(G20)
LP Gas (Propane / Butane)
(G30 / G31)
CH8300G
CH8600G
CH8900G
CH8120G
CH8300G
CH8600G
CH8900G
CH8120G
Main Burner Injectors
2.70mm
1.65mm
Pilot Burner Injectors
0.35
0.45
0.25
0.30
Low Fire Adjustment
1
1
/
4
turns out (ccw)
½ turn out (ccw)
Operating
Pressure
Non - CE Only
1.0 kPa (*)
0.95 kPa (*)
2.5 kPa (*)
2.6 kPa (*)
CE - Only
10.6 mbar (*)
10 mbar (*)
25 mbar (*)
26 mbar (*)
Main Burner Aeration Shutter
Fully Open
Fully Open
Gas Regulator Cap Screw
See Figure Above
See Figure Above
