A heating, ventilating and air conditioning (HVAC) assembly that includes a duct and a coil assembly coupled to the duct. A supply line and return line are connected to the coil assembly. A first hanger assembly encircles the supply line, and a second hanger assembly encircles the return line. A support bracket has a first raised channel with a hole and second raised channel with a hole. A first threaded connector is secured using a square nut located in under the raised channel of the bracket, and a second threaded connector is connected to the threaded hole of the second hanger assembly and the second hole in a raised channel of a bracket and secured using a square nut located in under the raised channel of the bracket.