Lennox LCH036 Installation Instructions Manual page 143

IGNITOR
A
B
C
SIDE VIEW IGNITOR
1-3/8"
(35mm)
13/16"
(21mm)
5- Return combustion air inducer motor and vent
connector to original location and secure with
retained screws. It is recommended that the
combustion air inducer gasket be replaced during
reassembly.
6- Clean combustion air inlet louvers on heat access
panel using a small brush.
E-Flue Passageway and Flue Box (Gas Units)
1- Remove combustion air inducer assembly as
described in section D.
2- Remove flue box cover. Clean with a wire brush as
required.
3- Clean tubes with a wire brush.
4- Reassemble the unit. The flue box cover gasket and
combustion air inducer gasket should also be
replaced during reassembly.
IGNITOR AND SENSOR POSITION
TOP VIEW
Gas Flow
BURNER BOX
FIGURE 41
Page 43
SENSOR
A
SIDE VIEW SENSOR
Gas Flow
HEAT EXCHANGER ASSEMBLY
HEAT
EXCHANGER
TUBE
COMBUSTION
AIR INDUCER
GAS VALVE
BURNER
FIGURE 42
B
C
1-3/4"
(45mm)
3/8"
(10mm)
VENT
CONNECTOR