9
Figure 8: Efficient Flame.
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et
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P
:
THE SLIDER / DAMPER MUST BE SET AT TIME OF INSTALLATION.
A Qualified Service Technician
or Installer must set the Slider Damper.
This is used to regulate the airflow through the pellet stove. The
slider damper knob is located on the left cab side (see Figure 7).
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.
Figure 7: Slider / Damper Knob.
• 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, refer to Figure 8.
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.
SPECIAL NOTES:
Pellet quality is a major factor in how the Pellet stove will operate.
If the pellets have a high moisture content or ash content the
fire will be less efficient and has a higher possibility of the fire
building up and creating clinkers (hard ash build-up).
9
Operating Instructions
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uning
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:
Due to fuel quality the slider damper and control board trims may need to be fine-tuned.
1. If the unit builds up on all settings, the slider damper rod should be pulled out in small increments to
give the unit more air.
2. If the unit has excesses ash build-up in the liner on the lower feed settings, the Combustion Blower
Trim should be increased one setting at a time until the problem improves (Factory Setting is #2).
3. If the fire is going out on low because the airflow is too great, the Combustion Blower Trim can be
lowered to the #1 setting.
4. If the stove has excesses ash build-up in the liner on the higher settings the Feed Rate Trim should be
trimmed down a setting at a time until the problem improves (Factory setting is #4).
5. If you need more heat and the fuel has long pellets, the majority are over 1” (2.5cm) in length, the
Feed Rate Trim can be moved up to the #5 setting. NOTE: Only do this if the fuel burns without
building up.
Summary of Contents for MERIDIAN-A
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