Blower & control diagram
Part #HT01BC115
The manufacturer no longer makes this part, and there's no substitute part
Heat exchange diagram
Part #326600-751
Manifold & gas control diagram
Part #LH33ZG001
Unit assy diagram
Part #KGANP4601ALL
Cabinet diagram
Part #336901-401
Heat exchange diagram
Part #HH18HA499
Inducer & motor hsg diagram
Part #HH18HA493
Blower & control diagram
Part #HK42FZ051
Replaced by #HK42FZ064
Cabinet diagram
Part #336900-401
Manifold & gas control diagram
Part #329749-401