Installation
SLIDER/DAMPER
This is used to regulate the airflow through the pellet stove. The slider damper should be set by a trained technician using magnehelic.
The slider damper is located behind the left side panel. To open the left side panel, undo the one screw
Air Intake Box |
Slider Damper |
Exhaust Channe |
Exhaust Blower |
Figure 28: Slider/Damper Plate in Unit.
located in the upper front corner of the cabinet side between the louvers. Also loosen three screws down the back of the side panel.
The combustion exhaust blower is a variable speed blower controlled by the heat output button. This blower will decrease the vacuum pressure inside the stove and as the heat output button is turned down. The vacuum pressure inside the firebox will increase as the combustion exhaust blower increases in speed (higher heat output setting).
If the fire should happen to go out and the heat output indicator has been set on the lowest setting, the Slider Damper should be pushed in slightly, decreasing the air in the firebox.
If, after long periods of burning, the fire builds up and overflows the burn pot or there is a build up of clinkers, this would be a sign that the pellet quality is poor, this requires more primary air, the slider damper must be pulled out to compensate. Pulling the slider damper out gives the fire more air.
The easiest way to make sure that an efficient flame is achieved is to understand the characteristics of the fire.
• A tall, lazy flame with dark orange tips requires more air – Open slider (pull out) slightly.
• A short, brisk flame, like a blowtorch, has too much air – Close slider (push in) slightly.
• If the flame is in the middle of these two characteristics with a bright yellow/orange, active flame with no black tips then the air is set for proper operation (see Figure 29).
SPECIAL NOTES: |
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Pellet quality is a major factor in how the Pellet stove will operate. If |
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the pellets have a high moisture content or ash content the fire will |
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be less efficient and has a higher possibility of the fire building up |
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and creating clinkers (hard ash | Figure 29: Efficient Flame. |
IMPORTANT: Taking a reading of vacuum pressure inside the firebox with a magnehelic gauge should be used to set the slider for best combustion. The slider damper should be set only on a hot stove (operating for thirty (30) minutes or more) by using a Magnahelic Pressure Gauge to measuring the pressure in the firebox. The best settings are a reading of approximately 0.11 0.12 inches of water column (27.4 - 29.9 Pa) on the high fire setting. Some fuels may require higher or lower settings. The reading can be taken from the 1⁄8” (3 mm) hole located on the front of the unit below the ash shelf.
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