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DESCRIPTION AND USAGE
Use this Primary Heat Exchanger kit to replace a failed primary
heat exchanger. This Primary Heat Exchanger Kit contains the
following items.
See Table 1 for kit contents and Table 2 for where used.
Table 1 – Kit Contents
Kit No. 336771---752---CBP
Part No.
Description
336771--- 702
HX & Panel Assy.
FAW5808B
336828--- 401
336839--- 401
Gasket, Coll Box
336803--- 402
Cell Panel Insulation
AL90AZ173
IIK--- 336771--- 04
Kit No. 336771---756
Part No.
Description
336771--- 706
HX & Panel Assy.
FAW5808B
336828--- 401
336839--- 403
Gasket, Coll Box
336803--- 406
Cell Panel Insulation
AL90AZ173
IIK--- 336771--- 04
Kit No. 336771---757
Part No.
Description
336771--- 707
HX & Panel Assy.
FAW5808B
336828--- 401
336839--- 404
Gasket, Coll Box
336803--- 407
Cell Panel Insulation
AL90AZ173
IIK--- 336771--- 04
Kit No. 336771---758
Part No.
Description
336771--- 708
HX & Panel Assy.
FAW5808B
336828--- 401
336839--- 401
Gasket, Coll Box
336803--- 401
Cell Panel Insulation
AL90AZ173
IIK--- 336771--- 04
Kit No. 336771---759---CBP
Part No.
Description
336771--- 709
HX & Panel Assy.
FAW5808B
336828--- 401
336839--- 404
Gasket, Coll Box
336803--- 408
Cell Panel Insulation
AL90AZ173
IIK--- 336771--- 04
Kit No. 336771---761
Part No.
Description
336771--- 711
HX & Panel Assy.
FAW5808B
336828--- 401
336839--- 403
Gasket, Coll Box
336803--- 410
Cell Panel Insulation
AL90AZ173
IIK--- 336771--- 04
Quantity
1
Screw
51
Gasket
2
1
1
Screw
12
Instructions
1
Quantity
1
Screw
56
Gasket
2
1
1
Screw
12
Instructions
1
Quantity
1
Screw
59
Gasket
2
1
1
Screw
12
Instructions
1
Quantity
1
Screw
43
Gasket
2
1
1
Screw
12
Instructions
1
Quantity
1
Screw
61
Gasket
2
1
1
Screw
12
Instructions
1
Quantity
1
Screw
51
Gasket
2
1
1
Screw
12
Instructions
1
Kit No. 336771---763
Part No.
336771--- 703
HX & Panel Assy.
FAW5808B
336828--- 401
336839--- 402
Gasket, Coll Box
336803--- 403
Cell Panel Insulation
AL90AZ173
336839--- 403
Gasket, Coll Box
336803--- 410
Cell Panel Insulation
336839--- 401
Gasket, Coll Box
336803--- 402
Cell Panel Insulation
IIK--- 336771--- 04
Kit No. 336771---764
Part No.
336771--- 704
HX & Panel Assy.
FAW5808B
336828--- 401
336839--- 402
Gasket, Coll Box
336803--- 404
Cell Panel Insulation
AL90AZ173
336839--- 403
Gasket, Coll Box
336803--- 405
Cell Panel Insulation
IIK--- 336771--- 04
Table 2 – Where Used
Input
Casing Width
14-3/16 (360)
40,000
17-1/2 (445)
14-3/16 (360)
17-1/2 (445)
60,000
21 (533)
17-1/2 (445)
80,000
21 (533)
100,000
21 (533)
120,000
24-1/2 (662)
140,000
24-1/2 (662)
INSTALLATION
Unit Shut Down
1. Set room thermostat to lowest setting or "OFF."
2. Disconnect power at external disconnect, fuse or circuit
breaker.
3. Turn off gas at external shut- -off or gas meter.
4. Remove outer doors and set aside.
5. Turn electric switch on gas valve to OFF.
Vent Pipe Removal
NOTE: It will be necessary to remove the vent pipe from the
furnace in order to remove the heat exchanger.
1. Support the vent pipe as close to the furnace as possible to
prevent damage to the vent system.
2. Cut vent pipe with a hacksaw and move the remaining vent
pipe out of the way. Secure the vent pipe if necessary.
3. Loosen both clamps at the vent pipe support attached to fur-
nace casing.
4. Loosen clamp for the vent pipe at vent elbow on the inducer
assembly. See Fig. 1.
5. Remove remaining vent pipe through the furnace casing
and set aside.
2
Description
Quantity
1
Screw
51
Gasket
2
1
1
Screw
12
1
1
1
1
Instructions
1
Description
Quantity
1
Screw
53
Gasket
2
1
1
Screw
12
1
1
Instructions
1
Kit Number
336771-758
336771-752-CBP
336771-763
336771-761
336771-764
336771-756
336771-757
336771-759--- CBP
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