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Part 2
Specifications
Gas Supply Requirements
- Non UK Models:
Input Rating
(N.H.G.C.)
Supply Pressure
Gas Natural
LP Gas / Butane
Town Gas (**)
90 MJ/hr
(85,300 Btu/hr)
90 MJ/hr
90 MJ/hr
(85,300 Btu/hr)
(85,300 Btu/hr)
1.13 - 2.0 kPa
(4.5” - 8.0” w.c.)
2.75 - 3.0 kPa
(11” - 12” w.c.)
0.75 - 1.5 kPa
(3” - 6” w.c.)
0.90 kPa (*)
2.5 kPa (*)
0.39 kPa (*)
(3.6” w.c.)
(10.0” w.c.)
(1.6” w.c.)
Burner Operating Pressure
Gas Connection
¾” BSP Male
- UK Models:
Appliance Classification:
Category:
II2H3P (20, 37).
Heat Input (nett)
Gas Rate
Supply Pressure
Burner Operating Pressure
Gas Connection
Flue Type:
A1.
Natural Gas (G20)
Propane (G31)
22.5 kW
2.26 m3/hr
22.5 kW
1.75 kg/hr
20 mbar
37 mbar
9.0 mbar (*)
25 mbar (*)
3/ 4”
BSP Male
NOTE:
 (*) Measure the Burner Operating Pressure at the Operating Pressure Test Point (Lower - Out) on the Gas
Control Valve, with Main Burner operating.
 (**) TOWN GAS Only - Gas Control Valve - Operating Pressure Adjusting Screw should be replaced with the
Knock Out Plug supplied in Town Gas Kit and the operating pressure adjusted at the External Gas Pressure
Regulator. Both the Knock Out Plug and External Regulator are supplied in the Town Gas Conversion Kit.
 Refer to the ‘Gas Conversion and Specifications’ section of this manual for further details.
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