Lennox eNeRGy Series Installation, Operating And Maintenance page 19

DELIVERY CHECKS
The lockers can also be adjusted in vertical position in order to facilitate the opening/closing of all panels once the unit is definitively
installed on its final position. A freedom of +/-5 mm is given to all lockers.
It's recommended to adjust the lockers position in case of difficulty by opening/closing a panel. This operation is possible by loosening
the 3 screws. Be careful: never totally loosen the 3 screws simultaneously. A maximum of 2 revolutions per screw is enough to setup
the lockers. After adjustment of the locker position, the 3 screws must be tight again.
During this operation, it's important to keep a constant peripheral clearance (4mm) around the panel:
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eNeRGy-IOM-2020.11-EN 19