Patent ID: 7320453

Claim:
A system for suspending an HVAC unit from a top support member comprising: an HVAC unit, a suspension chain, a bottom lock plate, wherein the bottom lock plate is connected to the HVAC unit, wherein the bottom lock plate has a bottom hole that permits a suspension chain to freely pass through the bottom hole and where the bottom hole has an adjacent bottom slot to lock the suspension chain, a top lock plate, wherein the top lock plate is connected to the top support member, wherein the top lock plate has a top hole that allows a suspension chain to freely pass through the top hole and where the top hole has an adjacent top slot to lock the adjustable chain, and, wherein the HVAC unit is suspended from the top support member by sliding the suspension chain though the top hole and locking it in the top slot and by sliding the suspension chain through the bottom hole and locking it in the bottom slot.