Abstract: An HVAC evaporator unit and emergency drain pan are suspended from an existing overhead structure. Plural lateral beams are disposed along a horizontal plane, which support a pair of support beams, which support the HVAC evaporator unit. The beams are connected to each other by plural pivot connectors, which thereby defines a grid arrangement that is foldable about the plural pivot connectors. Plural pan support beams are suspended by pairs of pan hangers, which are connected to the ends the plural lateral beams. Plural flexible hangers are connected to ends of the plural lateral beams, for connection to and suspension from the existing overhead support structure. Hanger clamps are used to adjust the plural flexible hangers to facilitate height adjustment and leveling.