Waldorf GP8600G, Operation Manual

22 

Gas Conversion and Specifications

Gas Specifications 

- Non CE Only (Australia / New Zealand): 

- CE Only: 

Appliance Classification 

Category:  

II

2H3P. 

Flue Type:   

A

1.

Note 1  Gas Control Valve is fitted with a maximum flow bypass blanking screw, non-adjustable. 
 
Note 2  burner operating pressure is to be measured at gas control valve outlet test point with  

burner operating at ‘High’ setting.  Operating pressure is ex-factory set, through appliance 
regulator and not to be adjusted, apart from when carrying out gas conversion, if required.  
(Refer to ‘Gas Conversion’ section for details). 

Natural Gas (G20) 

Propane (G31) 

GP8600G 

GP8900G 

GP8120G 

GP8600G 

GP8900G 

GP8120G 

Main Burner Injector 

3.40mm 

3.00mm 

2.85mm 

2.10mm 

1.80mm 

1.70mm 

Pilot Burner Injector 

0.41 

0.25 

Low Fire Adjustment 

1 Full Turn Counter Clockwise from the 'Fully In' Position 

High Fire Adjustment 

Maximum Flow Screw.  Fully In c.w.  (Note 1) 

Operating Pressure 

8.5 mbar (Note 2) 

8.2 mbar  

(Note 2) 

Supply Pressure 

20 mbar 

37 mbar 

Gas Regulator Cap Screw 

26 mbar  
(Note 2) 

Natural Gas 

LP Gas (Propane) 

GP8600G 

GP8900G 

GP8120G 

GP8600G 

GP8900G 

GP8120G 

3.60mm 

3.00mm 

2.85mm 

2.10mm 

1.80mm 

1.70mm 

Pilot Burner Injector 

0.41 

0.25 

Low Fire Adjustment 

1 Full Turn Counter Clockwise from the 'Fully In' Position 

High Fire Adjustment 

Maximum Flow Screw.  Fully In c.w.  (Note 1) 

Operating Pressure 

0.85 kPa (Note 2) 

2.5 kPa 

(Note 2) 

2.6 kPa 

(Note 2) 

Gas Regulator Cap Screw 

0.90 kPa 

(Note 2) 

Main Burner Injector 

Supply Pressure 

1.13 - 3.40 kPa 

(4.5” - 13.5” w.c.) 

2.75 - 4.50 kPa 

(11” - 18” w.c.)