Abstract: Generally, the present invention (referred to also as the “suspension system”) is incorporated in a system for suspending an HVAC unit from one or more wood truss members through the use of one or more top lock plates connected to the wood truss, one or more bottom lock plates connected to the HVAC unit, and one or more suspension chains connected between the top lock plates and the bottom lock plates. The suspension system provides a system for suspending HVAC equipment in residential and light commercial applications that is safer, quicker, cheaper, more reliable and more accurate than systems currently in use.