Step 10. BURNER ADJUSTMENTS
Flame Appearance and Sooting
Proper flame appearance is a matter of taste. Generally, most people prefer the warm glow of a yellow to orange flame. Appliances operated with air shutter openings that are too large will exhibit flames that are blue and transparent. These weak, blue and transparent flames are termed anemic. If the air shutter opening is too small sooting may develop.
Sooting is indicated by black puffs developing at the tips of very long orange flames. Sooting results in black deposits forming on the logs, appliance inside surfaces and on exterior sur- faces adjacent to the vent termination. Sooting is caused by incomplete combustion in the
Allow the burner to operate for at least 15 min- utes. Observe the flame continuously. If it ap- pears weak or sooty as previously described, adjust the air shutter by pushing or pulling on the adjustment rod until the flame appearance is as desired.
The adjustment rod and associated adjustable air shutter is patented technology. Flame adjust- ments can be made quickly and accurately to taste without the need of disassembling the appliance and waiting for 30 minutes after each adjustment.
Note: If the flame still appears anemic with the air shutter closed all the way against the stop (usually a result of lengthy vertical runs), turn the appliance off, turn the gas supply off, wait for the parts to cool, remove the glass door and
Step 11. HOOD INSTALLATION
All of these appliances must have hoods installed prior to operating.
On all clean face units, slide the hood into the slots on the lower edge of the radiant panel (Figure 55 ).
On louvered face units, slide the hood into the slots on the lower edge of the cabinet top (Figure 56 ).
FINISHING REQUIREMENTS
Wall Details
Complete finished interior wall. To install the appliance facing flush with the finished wall, position framework to accommodate the thick- ness of the finished wall (Figures 55 and 56 ).
flames and lack of combustion air entering the air shutter opening. To achieve a warm yellow to orange flame with an orange body that does not soot, the shutter opening must be adjusted between these two extremes.
No smoke or soot should be present. Reposition the logs if flames impinge on any of them.
If the logs are properly positioned and sooting conditions exist, the air shutter opening on the main burner tube should be adjusted. Normally, the more offsets in the vent system, the greater the need for the air shutter to be opened further.
Burner Adjustment
logs to access the air shutter. The shutter is prevented from actually closing all the way by an adjustment set screw (see Figure 54). Re- move this screw using a ¹⁄₄ inch nut driver. Reinstall the logs and glass door, turn the gas back on and then restart the appliance. After 30 minutes, reobserve the flame. Adjust the air shutter as previously described.
When satisfied that the appliance operates properly, proceed to finish the installation. Leave the control knob in the ON position and the remote switch OFF. Close the lower control compartment door.
Combustible
Finished Wall
Materials
Combustible
material
may touch the appliance top.
Combustible materials not allowed below 
this point on
the face of the
appliance.
This Area Must Remain
Clear of Combustible
Materials
1" Min
(25 mm)
Spacer
Top of Appliance
Radiant panel
Top of Door Frame
WARNING: AIR SHUTTER ADJUST- MENT SHOULD ONLY BE PERFORMED BY A QUALIFIED PROFESSIONAL SERVICE TECHNICIAN.
Adjusting Set Screw |
Adjustment Rod Up |
(Fully Open Position) |
Burner Tube |
Hood must be installed as shown.
Clean Face Models
Figure 55
IMPORTANT: ENSURE THAT THE FRONT GLASS PANEL IS IN PLACE AND SEALED DURING ADJUSTMENT.
CAUTION: THE AIR SHUTTER DOOR AND NEARBY APPLIANCE SURFACES ARE HOT. EXERCISE CAUTION TO AVOID INJURY WHILE ADJUSTING FLAME APPEARANCE.
To adjust the flame, move the adjustment rod (located in the lower control area) up or down to increase or reduce the air shutter opening, respectively. Initially, always position the air
Air Shutter |
|
|
|
Adjustment Rod Down |
| ||
(minimum air |
| ||
opening position) |
| ||
|
|
|
|
|
| FACTORY AIR | |
| SHUTTER SETTING | ||
|
| Natural Gas | Propane Gas |
Models |
| inches | inches |
|
| (mm) | (mm) |
| 1/32 | 5/16 | |
| (0.8) | (8.0) | |
Combustible
Finished Wall
Materials
Combustible
material
may touch the appliance top.
Combustible materials not 
allowed below 
this point on
the face of the
appliance.
This Area Must Remain
Clear of Combustible
Materials
1" Min
(25 mm)
Spacer
Top of Appliance
Louvers
Top of Door Frame
shutter to the factory setting (the minimum air opening position) as shown in Figure 54. This can be done by pulling the adjustment rod all the way down.
Figure 54
Hood must be installed as shown. Louver Face Models
Figure 56
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
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