253 HEATING Key Item# Description 1 #LB06665 Secondary regulator 2A #LB20714 1/2” x 10’ gas hose, NG 2B #LB20543 1/4” x 10’ gas hose, LP 3 #LB571173 Manual shut valve 10 #LB05568 Surface mount thermostat 17 #LB00815 Sediment trap L.B. White 60,000 Pilot Gas Valves Key Item# Description 4A #LB502309 Basotrol, LP & NG 4B #LB521615 Honeywell, LP 4C #LB521616 Honeywell, NG Burner Orifice Key Item# Description 5A #LB570077 LP 5B #LB570078 NG Thermocouple Key Item# Description 8 #LB503497 22” Snap-in Motor Mount Plate Key Item# Description 12 #LB570382 Motor Mount Plate Blower Wheel Key Item# Description 13 #LB570230 6-1/2” dia x 3-1/8” wide Pilot Shield Key Item# Description 7 #LB573700 Pilot Shield Pilot Tube Key Item# Description 9 #LB521380 Pilot tube Motor Key Item# Description 11 #LB520290 1/12 Hp motor Fan Housing Key Item# Description 14 #LB05579 w/ motor mount High Limit Switch Key Item# Description 15 #LB503933 High Limit Switch Air Proving Switch Item# Description #LB502680 Air Proving Switch Pilot Orifice Key Item# Description 6A #LB502689 LP 6B #LB570065 NG Owner’s Manual • Classic Service Parts Identification Schematic 24 22 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 23 21 20c 20a 20b HEATING
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