Heat exchange diagram
Part #326600-751
Manifold & gas control diagram
Part #LH33ZG001
Inducer & motor hsg diagram
Part #HH18HA493
Heat exchange diagram
Part #HH18HA499
Cabinet diagram
Part #336901-401
Blower & control diagram
Part #HD52SE122
Replaced by #58MV660005
Blower & control diagram
Part #HK52EA122
Replaced by #58MV660005
Unit assy diagram
Part #HK06WC092
The manufacturer no longer makes this part, and there's no substitute part
Cabinet diagram
Part #336920-751
Manifold & gas control diagram
Part #HH18HA495