Control box diagram
Part #HN51JD024
The manufacturer no longer makes this part, and there's no substitute part
Burner assy diagram
Part #48GS400192
Front view/rear view diagram
Part #48GS500247
Blower assy diagram
Part #48GS500242
Part #LH33WP003
Burner assy diagram
Part #50DK407029
Gas section diagram
Part #48GS500390
Accessory economizer diagram
Part #9901-0183
Burner assy diagram
Part #48GS500186
Burner assy diagram
Part #48GS400168