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DUCT WORK AND BLOWER SPEED ADJUSTMENT
Supply and return duct system should be sized properly
for efficient operation. Normal air temperature rise
through the furnace should be adjusted to
approximately 80-90º F. Proper blower speed
adjustment, in conjunction with adequate duct work are
necessary to achieve this.
A high temperature rise will result in excessive fuel
usage. This is due to the high stack temperature that
always accompanies a high air temperature rise. It can
also cause premature heat exchanger failure.
To perform temperature rise check, start furnace and let
it run a minimum of 10 minutes. (Be sure all duct work
is complete and furnace is in its normal operating
condition). Place #1 thermometer in the return duct
near the furnace. Place #2 thermometer in the supply
duct near the furnace, but not in the plenum. After 10
minutes or more operation, take thermometer readings.
Supply air temperature should be no more than 80-90º
higher than return air temperature.
Air temperature rise can be lowered by:
1. Increasing blower speed.
2. Additional supply or return outlets.
3. Lowering firing rate.
50
Maintenance
Summary of Contents for LWO-112
Page 9: ...9 Furnace Features Eagle I Husky...
Page 11: ...11 Furnace Features Eagle II Polar...
Page 31: ...OIL AND WOOD COAL HEATING WITH A C 31 Wiring Diagrams DS 103 DAMPER CONTROL...
Page 32: ...GAS AND WOOD COAL HEATING ONLY 32 Wiring Diagrams DS 103 DAMPER CONTROL...
Page 33: ...GAS AND WOOD COAL HEATING WITH A C 33 Wiring Diagrams DS 103 DAMPER CONTROL...
Page 56: ...EAGLE I HUSKY MODELS LWO 112 LWG 112 56 Exploded Views Parts Lists...
Page 58: ...EAGLE II POLAR MODELS LWO 168 LWG 168 58 Exploded Views Parts Lists...
Page 62: ...WAYNE MODEL P250AF DIN GAS BURNER 62 Exploded Views Parts Lists...
