Blower & ctrl diagram
Part #HT01BC115
The manufacturer no longer makes this part, and there's no substitute part
Manifold & gas ctrl diagram
Part #LH33ZG001
Inducer motor & housing diagram
Part #HC21ZE126
Heat exchange diagram
Part #326600-751
Inducer motor & housing diagram
Part #326628-762
Cabinet diagram
Part #336901-401
Inducer motor & housing diagram
Part #HH18HA493
Heat exchange diagram
Part #HH18HA502
Blower & ctrl diagram
Part #HD44SE122
Replaced by #58MV660004
Cabinet diagram
Part #323018-202