The invention relates to a method of manufacturing a welding stud from a wire by cold-working and by hardening and tempering. Plural lateral beams are disposed along a horizontal plane, which support a pair of support beams, which support the HVAC evaporator unit. The slave component then transmits a remaining portion of the frame to the master component over the data wire. , the first and second points, at the same time, the coordinate generating unit determines the coordinates of the first and second points by combining the two provisionally determined X-coordinates and the two provisionally determined Y-coordinates, based upon the magnitude relation between the first and second panel voltages. The suspended squat rack further includes a pair of mounting assemblies each comprising a clamp adapted to attach to a horizontally disposed flange which extends from a web of the overhead support beam.