A_GC_SM_HDGASCOUNTERSERV_GT-UT-SERIES (Rev 1)Page 18
Open Top Burners Adjustments
Pilot Adjustment Valves
• Also known as gum valves (Figure 16).
• Available in single or double.
• Adjustable with a set-screw using a straight blade pocket
screwdriver.
• Turn set-screw counter-clockwise to increase flow; turn
set-screw clockwise to decrease flow.
• Precisely adjust the pilot flame to a slight yellow tip to
provide maximum performance.
Pilot Adjustment Valves Location
• All pilots adjustment valves are located on the manifold,
behind the front panel (Figure 17).
• To remove the front panel, first remove the knobs with set
screws. Then release the four (4) screws holding the panel
and remove panel.
Adjustable
Set-Screw
Pilot Tip Figure 16
Gas
Manifold
Gum
Valve
Front
Panel
Figure 17
Burner Gas / Air Shutter Adjustment
Variations in field conditions, and/or rough handling of the
equipment in transit may result in the need for adjustment of
the primary air to the burners. The following steps will show
you how to provide a sharp blue flame at the full rate (open
valve fully for the maximum gas flow).
1. On the burner locate the aeration shutter (Figure 6).
2. Loosen the fixing screw so that the aeration shutter turns
freely.
3. Turn on the gas flow and ignite the burner.
4. Rotate the air shutter to obtain the 1/2” stable, sharp inner
blue cones (Figure 7).
Injector LŽĐĂƟŽŶ
Fixing Screw
Air Flow
AeraƟon
^ŚƵƩĞƌ
Figure 6
Open Burner
1/2” stable sharp inner blue cone
Figure 7
US Range and Garland Burner Heads:
Garland
Star Burner Head
US Range
Burner Head
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General