Cobra CF2 - Gas Specifications

15
Part 6 Gas Conversion
Gas Specifications
- Australia:
- New Zealand:
- United Kingdom:
Appliance Classification:
Category: II
2H3P
(20, 37). Flue Type: A
1.
- All Other Markets:
NOTE:
(*) Measure Burner Operating Pressure at Operating Pressure Test Point (Lower - Out) on Gas Control Valve,
this is to be carried out with Main Burner operating. Refer to information shown in this section for further
details.
(**) 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.
Natural Gas (G20) Propane (G31)
Main Burner Injectors
Ø 1.55mm Ø 0 95mm
Pilot Burner Injectors
0.45 0.30
Pilot Screw Adjustment
Full Out (CCW) 1½ turns out (CCW)
Burner Operating Pressure
0.90 kPa (*)
(9.0 mbar)
2.50 kPa (*)
(25 mbar)
Supply Pressure
20 mbar 37 mbar
Natural Gas LP Gas (Propane)
Main Burner Injectors
Ø 1.55mm Ø 0.95mm
Pilot Burner Injectors
0.62 0.35
Pilot Screw Adjustment
Full Out (CCW) 1½ turns out (CCW)
Burner Operating Pressure
0.90 kPa (*)
(9.0 mbar)
2.50 kPa (*)
(25 mbar)
Supply Pressure
1.13 - 2.0 kPa 2.75 - 3.0 kPa
Natural Gas LP Gas / Butane
Main Burner Injectors
Ø 1.55mm Ø 0.90mm
Pilot Burner Injectors
0.62 0.35
Pilot Screw Adjustment
Full Out (CCW) 1½ turns out (CCW)
Burner Operating Pressure
0.90 kPa (*)
(9.0 mbar)
2.50 kPa (*)
(25 mbar)
Supply Pressure
1.13 - 2.0 kPa 2.75 - 3.0 kPa
Natural Gas LP Gas (Propane) LP Gas / Butane Town Gas (**)
Main Burner Injectors
Ø 1.55mm Ø 0.95mm Ø 0.90mm Ø 2.60mm
Pilot Burner Injectors
0.62 0.35 0.35 0.75
Pilot Screw Adjustment
Full Out (CCW) 1½ turns out (CCW) 1½ turns out (CCW) Full Out (CCW)
Burner Operating Pressure
0.90 kPa (*)
(9.0 mbar)
2.50 kPa (*)
(25 mbar)
2.50 kPa (*)
(25 mbar)
0.39 kPa (*)
(3.9 mbar)
Supply Pressure
1.13 - 2.0 kPa 2.75 - 3.0 kPa 2.75 - 3.0 kPa 0.75 - 1.5 kPa