WARNING: DO NOT OPERATE APPLI- ANCE WITH THE GLASS FRONT RE- MOVED, CRACKED OR BROKEN. RE- PLACEMENT OF THE GLASS SHOULD BE DONE BY A LICENSED OR QUALIFIED SERVICE TECHNICIAN.
Step 9. 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 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. These logs are designed to be involved in the fire. Flames will impinge the top tips of the right and left logs.
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
WARNING: AIR SHUTTER ADJUST- MENT SHOULD ONLY BE PER - FORMED BY A QUALIFIED PROFES- SIONAL SERVICE TECHNICIAN.
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, rotate the lever arm up or down (rod located in the lower control area). Position the air shutter to the factory setting as shown in the table in Figure 43. Allow the burner to operate for at least 20 minutes.
Air Shutter Rod | Air | ||
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| Adjustment | |
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| Arm | |
Venturi |
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| Valve |
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| MAIN BURNER |
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FACTORY SHUTTER OPENING SETTING | |||
Models | Natural Gas | Propane Gas | |
inches (mm) | inches (mm) | ||
| |||
MPLDV30 | 3/32 (2.38) | 3/16 (4.76) | |
MPLDV35 | 1/16 (1.6) | 1/4 (6.35) | |
MPLDV40 | 1/4 (6.35) | 3/8 (9.5) | |
MPLDV45 | 1/4 (6.35) | 1/2 (12.7) | |
Figure 43 |
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| |
CAUTION: DO NOT BEND THE AIR SHUTTER ROD. MAKE SURE THE AIR SHUTTER MOVES WHEN THE LEVER ARM IS OPERATED.
Note: When first operating the air shutter adjustment lever arm observe the air shutter. If it is not moving, open the glass, ensure the air shutter screw is loose and adjust by hand through a couple of cycles, to break the adhe- sion of paint, if required. Close door and adjust with the lever as needed.
Observe the flame continuously. If it appears weak or sooty as previously described, adjust the air shutter by rotating the adjustment arm up or down (refer to Figure 39 ) until the flame appearance is as desired.
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
The adjustment rod and associated adjustable air shutter is patented technology. Flame ad- justments can be made quickly and accurately to taste without the need of disassembling the appliance and waiting for 30 minutes after each adjustment.
Propane models may exhibit a flame pattern that may candle or appear stringy. If this is problematic or persists as the appliance is continually operated, adjust the air shutter closed as described in the previous paragraphs. Operate the appliance for a period of time as the effect diminishes, ensuring that the appliance does not develop sooty flames.
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.
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 (Figure 44 )
Combustible |
| This Area Must |
| Remain Clear | |
Finished Wall |
| |
| of Combustible | |
Materials |
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| Materials |
Combustible |
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| (89 mm) | |
materials not |
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allowed |
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below this |
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point on |
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the face of the |
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appliance. | Spacer | Top of |
| ||
10" Min |
| Appliance |
(254 mm) |
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Optional Hood | Top of Door Frame | |
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Figure 44 |
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A hearth extension is not required with this appliance. If a hearth extension is used, do not block the lower control compartment door. Any hearth extension used is for appearance only and does not have to conform to standard hearth extension installation requirements.
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