90+ Afue Components View - Nordyne Residential Gas Furnaces User's Information Manual

90+ AFUE
18
4
1
6
3
5
7
17
8
14
Upflow/Horizontal Condensing Furnaces
1 Ignitor (Not Shown)
2 Flame Sensor (Not
Shown)
3 Gas Valve
4 Flame Roll-out
Switch(s)
5 Pressure Switch
6 Vent Pressure
Switch (93+ Only)
7 Control Board
4
10
19
7
16
8
2
11 5
15
10
13
13
9
9
14
11
12
3
1
4
8 Blower Door Switch
9 Vent Safety Switch
10 Low Voltage
Transformer
11 Supply AIr Limit
Switch
12 Circulating Air
Blower Assembly
13 Induced Draft
Blower
Figure 2. Furnace Parts Identified
Downflow Condensing Furnace
14 Condensate Drain
Tube
15 In-Line Drain
Assembly
16 Burner View Port
17 Front Header Box
18 Combustion Air
Intake
19 Exhaust Vent
19
18
12
15
17
2
16