Service Port HVAC: Description and Operation

Service gauge ports are located as follows:

^ High-pressure port - In the compressor discharge line near the A/C condenser core. (An adapter, Rotunda [high side coupling] 176-R0037 or equivalent is required to accommodate installation of service equipment.)

^ Low-pressure port - On top of the suction accumulator/drier near the A/C cycling switch. (An adapter, Rotunda [low side coupling] 176-R0036 or equivalent is required to accommodate installation of service equipment.)