Control box diagram
Part #HN51JD024
The manufacturer no longer makes this part, and there's no substitute part
Part #LH33WP003
Part #48GS400106
Replaced by #48GS400649
Gas section diagram
Part #HH18HA460
Evap view diagram
Part #KA56TR057
Blower assy diagram
Part #KA56TR056
Accessory economizer diagram
Part #9460-6700
Burner assy diagram
Part #HH18HA211
Burner assy diagram
Part #50DK407030
Part #50SS500879