Lennox SL280UHNV Series Unit Information page 39

Air Fuel Plenum
Gasket
Burner
Gasket
Remove 5 screws if necessary
(either side of cabinet)
FIGURE 25
Heat Exchanger and Burner Removal
* Re−install screws per the numbered sequence shown
*Air Fuel Plenum
Gas Valve
Air Intake Assembly
FIGURE 24
1
2
3
4
5
Page 39
Heat Exchanger
Gasket
(replace)