Trim Adjustment - Quadra-Fire MTVI-E2-MBK Installation Manual

J. Trim Adjustment
More Air & Less Fuel
Figure 23.1
The small dial located below the main dial control is used
to adjust the amount of fuel and combustion air used for
effi cient clean burning. Adjusting the trim along with proper
cleaning of the fi repot and heat exchanger will help achieve
maximum performance of your Mt Vernon E2 Appliance.
Your appliance may need to be adjusted based on any or
all of the following:
• Elevation (3000 feet above Sea Level or Higher)
• Venting/Installation Confi gurations (installations with
greater than 4' horizontal or more than two 90 degree
elbows)
• Fuel Quality (lower BTU fuels or fuels with high ash
content)
• Fuel Type (hardwood, softwood, lower BTU fuels)
• Appliances not properly adjusted will:
• Require more frequent cleanings
• Result in nuisance shut downs and/or missed ignitions
• Waste fuel
Consult your QuadraFire Dealer with specifi c questions
regarding proper adjustments for maximum performance.
August 3, 2015
(Factory default setting is -2)
More Air
Where to Start:
If Burning Hardwood Pellet Fuel
QuadraFire recommends setting the appliance at a -4
trim setting as a start. From our testing, hardwood fuels
burn well between -4 and -2 settings.
If Burning Lower BTU Pellet Fuel, Utility Pellet Fuel, or
High Ash Pellet Fuel
QuadraFire recommends setting the appliance and leaving
at a -4 trim setting. From our testing, lower BTU fuels
result in large clinkers in the bottom of the fi repot during
normal operation. Using this type of fuel will increase the
recommended fi repot cleaning interval.
If Burning Softwood Pellet Fuel
QuadraFire recommends starting at a -2 trim setting and
adjusting based on installation confi gurations. From our
testing, softwood fuels burn well at a variety of settings.
If Elevation is 3000 feet above Sea Level or Higher
When burning at higher elevations you will need more
air for the fi re to burn properly. QuadraFire recommends
starting with a Trim Setting of -3. From our testing,
appliances at higher elevations burn best at settings
-4,-3, +3, and +4. Review fuel types and installation
confi gurations for choosing the right setting.
If appliance has long horizontal venting sections or
more than two 90 degree Elbows
QuadraFire recommends starting at a -4 trim setting and
making adjustments based on fuel type and elevation.
From our testing, we have found that -4,-3, +3, or +4 have
worked well depending on fuels.
Indicators that Trim Adjustment is needed:
1. The fl ame appears lazy
2. Smoke can be seen in the fi rebox after start up during
normal burn
3. Excessive build up of clinkers taller than a 1/2" in the
bottom of the fi repot
4. The fi re goes out when in normal operating mode
7082-131J
MT VERNON E2 INSERT
23