Dean 52 Series Installation & Operation Manual page 18

3.6 Gas Inputs (cont.)
C. Adjustments for different gases are as follows:
Gases and Gas Supply
Pressure*
Injector Diameter
Burner Marking
Pilot Marking
Gas pressure at the regulator
(mbar)*
NOTE: Outlet gas pressure must be adjusted strictly within the above requirements 5 to 10 minutes
after the appliance is operating.
* For controls and adjustments, please refer to "gas valve" illustrations on page 3-10. (Pilot Flame
Adjustment: Turn the pilot adjustment screw clockwise/counter-clockwise until the desired flame-
volume is achieved).
If gas odors are detected, the gas supply MUST be shut off at the main shut-off
valve, and the local gas company or authorized service agency contacted for
3.7 Gas Conversion: Procedures
See page 3-10 for gas valve illustrations and page 3-11 for gas valve, burner and orifice location
when performing the following conversions.
When converting from G20 to G25 gas, the following procedures apply:
♦ Equipment replacement is not required.
♦ Adjust orifice gas pressure by turning the gas valve "adjustment screw".
♦ After adjustment, seal the screw.
When converting from G20 (or G25) gas to G31 propane (or vice-versa), the following procedures
apply:
♦ Burner orifices and pilot MUST be replaced.
♦ Adjust orifice gas pressure by turning the gas-valve adjustment screw.
♦ After adjustment, seal the screw.
♦ Affix the new label included with the conversion kit next to the existing rating plate stating
that the gas type has been converted. Remove any reference to the previously used gas from
the rating plate.
G20
20 mbar
2.71 mm
"blue" marking
TJ024
8.75 mbar/3.5" WC 8.75 mbar/3.5" WC
WARNING
immediate service.
3-9
G25
25 mbar
2.71 mm
"blue" marking
TJ024
25 mbar/10" WC
G31
37 mbar
1.70 mm
"red" marking
TJ013
"red"