Control box assy diagram
Part #HN51JD024
The manufacturer no longer makes this part, and there's no substitute part
Control box assy diagram
Part #LH33WP003
Inside view diagram
Part #P291-4054
The manufacturer no longer makes this part, and there's no substitute part
Gas section diagram
Part #48GS660003
Gas section diagram
Part #48GS400108
Part #HH18HA211
Part #48GS400106
Replaced by #48GS400649
Accessory manual outside air diagram
Part #0900002A
Accessory economizer diagram
Part #9901-0001
Front view/rear view diagram
Part #48GS500011