Enviro 50-1221 technical manual Special Notes

Installation

SLIDER/DAMPER SET-UP:

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 located in the upper
	front corner of the cabinet side
	between the louvers. Also loosen
	three screws down the back of
Air Intake Box	the side panel.
Slider Damper	The combustion exhaust blower is
	a variable speed blower controlled
Exhaust Channel	by the heat output button. This
Exhaust Blower	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
Figure 28: Slider/Damper Plate in Unit.	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.

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).

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 best settings are a reading of approximately

0.11- 0.12 inches of water column (27 - 30 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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