At the beginning of each heating/cooling season, the system should be checked as follows:
NOTE- Filter access panel must be in place during unit operation, or excessive warm air may enter the unit resulting in water blow-off problems
To remove filter, remove 1/4” head screws holding the filter panel in place. Slide filter out of the guides on either side of cabinet, insert new filter and replace panel. Filters should be inspected monthly and must be replaced when dirty to ensure proper blower coil operation. See table 7 for replacement filter sizes.
B-Supply Air Blower
Source: MaintainX (Community Member)