Description
The Johnson Controls A28GJ-30 is a two-stage temperature control system that is designed to provide the necessary temperature control in HVAC systems, especially those working in cold climate conditions. The 4″ copper bulb which is praised for its heat transfer properties is installed in an area with regulated temperature. The control unit comprises two separate single-pole double-throw (2-SPDT) switches that enable the control of heating and cooling systems. This is suitable for use in HVAC systems of various refrigerators, freezers, cold storage, and industrial uses which may require a temperature range of -30°F to 50°F.
