Upflow furnace components, Downflow furnace components – Bryant 394HAD User Manual
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UPFLOW FURNACE COMPONENTS
Relief Box
Gas Valve Control Knob (On, Pilot, Off)
Gas Valve
Gas Burner
Pilot Burner and Thermocouple
Blower Door Safety Switch
Blower and Blower Motor
Draft Safeguard Tube and Switch
Rating Plate (Behind Junction Box)
Gas Manifold
Filter Retainer
Air Filter
4
1
2
3
4
5
6
7
8
9
10
11
12
1
2
8
3
9
5
6
7
10
11
4
3
DOWNFLOW FURNACE COMPONENTS
Manual-Reset Auxiliary Limit Switch
(Behind Enclosure)
Blower and Blower Motor
Relief Box
Rating Plate
Gas Valve Control Knob (On, Pilot, Off)
Gas Valve
Gas Burner
Blower Door Safety Switch
Draft Safeguard Tube and Switch
Gas Manifold
Pilot Burner and Thermocouple
8
1
9
2
3
10
4
5
6
7
11
12
1
2
3
4
5
6
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10
11
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