Top view diagram
Part #P291-4054
The manufacturer no longer makes this part, and there's no substitute part
Accessory manual outside air diagram
Part #0900002A
Accessory economizer diagram
Part #M7415A1006
Blower assy diagram
Part #P251-0077
Inside view diagram
Part #HK02ZB022
Inside view diagram
Part #48NT500377
Louver option diagram
Part #48GS660005
Part #48GS500003
Blower assy diagram
Part #48GS500109
Top view diagram
Part #48GS500006