111
XIII. Repair Parts (continued)
Key
No.
Description
(Quantity) Part Number
APX399 APX500 APX800
1A Bare Heat Exchanger 101931-06 101931-07 103261-01
1B Burner Head Assembly 101933-06 101933-07 103108-01
1C Replacement Igniter Kit 103005-01 103005-02 103308-01
1D Replacement Flame Sensor Kit 103339-01 103310-01
1E Replacement Partially Assembled Burner Door 102696-01 104597-01
1F Air Vent Valve 101586-01
1G Water Temp Sensor (2) 101685-01
1H High Limit 101653-01
1J Gasket, Header (All Three) N/A
1K Gasket, Header, 1” NPT N/A
1L Gasket, Header, 1” & 3/4” NPT N/A
1M Gasket, Header, 1-1/2” NPT 101372-03
1N Gasket, Header, 3/4” NPT 101372-01
1P-1 Gas/Air Intake Duct Assembly 101725-02 N/A N/A
1P-2 Gas/Air Intake Duct Assembly N/A N/A 103338-01
1P-3 Gas/Air Intake Duct Weldment N/A 102615-01 N/A
1Q Burner Plate Insulation (Warning: Contains RCF, Not Shown) 101728-01 103610-01
1R Burner Plate Inner Seal 101729-01
1S Burner Plate Outer Seal 101730-01
1T Burner Head 101731-06 102658-01 104584-01
1U Burner Head Seal 101732-01
1V Insulation Disc (Warning: Contains RCF) 101996-02
1W Burner Door Thermostat with Manual Reset 104569-01
M6x1 Hex Flange Nut (Not Shown) (6) 101724-01
M5x14 mm Pan Hd Thread Forming Screw, T25 Drive (Not Shown) (4) 101742-01 N/A
M5x10mm Pan Hd Thread Forming Screw, Phillips Drive (Not Shown) N/A (5) 102671-01
Thermal Link Switch (Backside of Duo Heat Exchanger) (Not Shown) 103321-01
Flue Exit Gasket Kit (Inside of Vent Termination of Heat Exchanger),
(Not Shown)
104501-01 104502-01
1Q
1U
1T
1V
1S
1R
1W
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