Trane TAM7A0A24H21SC Installer's Manual page 44

E E l l e e c c t t r r i i c c a a l l — — H H i i g g h h V V o o l l t t a a g g e e
6. Reinstall all panels before starting the air handler
Note: After replacing all panels, loosen the Line Set Panel screws
approximately 1/4 — 1/2 turn. This will improve the seal
between the Heater Panel and Line Set Panel.
44 18-GJ06D2-2A