Install Instructions

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XV. Service Parts (continued)
Space Heating Models Heat Exchanger and Piping Service Parts
Key
No.
Description
Part Number (Qty)
ASPN-320 ASPN-399
1A Heat Exchanger
Contact U.S. Boiler Company. Provide
boiler serial number.
1B Burner (includes burner and screws) 108035-06 108035-07
1C Burner Plate Insulation 108036-04
1D
Flame Sensor (includes electrode, gasket, and
hardware)
105798-01
1E Ignitor (includes electrode, gasket, and hardware) 103005-02
1F Flue Gasket (Heat Exchanger or Flue Pipe) 107000-02
1G Silicone Tubing 106989-02
1H Blocked Vent Switch 106988-02
1I Condensate Float Switch 108048-01
1J Condensate Trap 108049-01
1K Return Sensor 106991-01
1L Flue Sensor 107932-01
1M Supply Sensor 106994-01
1N 30 psi Releif Valve 81660319
1O Temperature & Pressure Gauge 105894-01
1P Water Grommet (includes 2 grommets) 108173-01