8
FIGURE 2 - FURNACE COMPONENTS
IOM
IOM
15
7
LEGEND
1. Combustion Air Intake Fitting
2. Flame Roll-Out Switch (2)
3. Flame Sensor - located underneath
4. Two Stage Gas Valve
5. Air High Temperature Limit - supply air
6. Vent and Drain (Assembly) Coupling
7. Drain for Recovery Coil (3)
8. Condensate Trap
9. Two Stage Integrated Furnace Control (IFC) 20. UV Light Ballast
10. Transformer for 24 VAC / 40 VA
11. Burner Assembly
12. Hot Surface Igniter (HSI)(located underneath)
W415-1243 / E / 11.27.17
1
8
9
20
10
22
5
18
14
21
19
13. Two Speed Exhauster
14. Pressure Switch Assembly
15. Front Manifold Cover Pressure Tap (3)
*16. PFC "Choke Coil" (used on ¾ and 1 Hp units only)
17. Door Switch and Junction Box
18. Blower Motor (not shown, located on right side of
blower)
19. Circulating Air Blower
21. UV Light Bulb
22. LED Trouble Light (2)
6
13
12
2
4
3
11
17
*
16