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106308-05 - 3/23
APEX Installation, Operating, & Service Instructions
Blower / Gas Train Components
Key
No.
Description
Part Number
APX625C APX725C APX825C
2A
Replacement Blower Kit (includes blower, blower outlet gasket
and hardware)
104999-03
2B Blower Outlet Gasket 109223-01
2C
Blower Inlet Assembly (includes gas orifice, injector flange, inlet
shroud (425 only), swirl plate, blower adapter plate, and mounting
hardware)
Natural Gas:
110041-01
Natural Gas:
110042-01
110043-01
LP Gas:
110039-01
LP Gas:
110040-01
2E Replacement Gas Valve Kit (includes one gas valve and o-rings)
Natural Gas: 105004-04
LP Gas: 105004-03
2F
Gas Valve 90° Flange Kit (includes one 90° flange, o-ring,
and hardware)
108103-01
2G
Gas Valve Wire Harness (includes harness with plug and
M4 x 30 mm screw)
Natural Gas: 109225-01
LP Gas: 109224-01
N/A Gas Line Rubber Grommet 1 in. NPT: 109226-01
2K Gas Shutoff Valve 1 in. NPT: 816SOL0015
2L Air Proving Switch 109114-01 109115-01
2M
Air Proving Switch Tubing, silicone, 5/16 in. ID x 0.07 in.
Wall Thickness x 18 in. long
109116-01
13 Service Parts (continued)
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