Yearly – FloAire INDIRECT FIRED BENT TUBE MODULE User Manual
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Optional Mixing Box Filters
Diagonal Filters
Unit Size
Filter Quantity
Filter Size
1
4 10 x 16
2
2 20 x 25
3
4 15 X 20
4
4 18 X 25
5
9 14.5 x 19
Vertical Filters
Unit Size
Filter Quantity
Filter Size
1
1 10 x 16
2
1 16 x 25
3
2 15 x 15
4
2 16 x 20
5
3 14.5 x 19
Yearly
1. Before each heating season, verify that the drain on the bottom of each common flue box of every
furnace in the unit is clear.
2. Inspect bearings for wear and deterioration. Replace if necessary.
3. Inspect belt wear and replace torn or worn belts.
4. Inspect bolts and set screws for tightness. Tighten as necessary.
5. Inspect motor for cleanliness. Clean exterior surfaces only. Remove dust and grease from the
motor housing to ensure proper motor cooling. Remove dirt and grease from the wheel and
housing to prevent imbalance and damage.
6. The heat exchanger should be checked for cracks. The heat exchanger should be replaced
immediately if cracks are detected.
7. Inspect the combustion blower motor for cleanliness. Clean exterior surfaces of the combustion
blower motor only. Removing excess dust and grease guarantees proper motor cooling.
8. Before each heating season, examine the burner and gas orifices. Inspect burner ports for
foreign debris, heat exchanger, and spark igniter for cleanliness.