The 3-wire potential relay is engineered specifically to provide the necessary starting torque in low-voltage conditions or long line set applications where compressors struggle to overcome head pressure

this 1980 Series thermocouple features a stainless steel outer jacket that provides superior resistance to heat blistering and oxidation at high ambient temperatures

ensuring quiet operation and extending the life of the motor bearings

The heavy-duty barrier strip design prevents accidental arcing between phases

37" WC setpoint is accurate to factory specs

Johnson Controls A19ADB-29 Temperature Control 30067439-890 The 3-wire potential relay isThe Johnson Controls A19ADB 29 is a heavy duty single stage utility thermostat engineered for high temperature limit control in commercial and industrial HVACR systems. This remote bulb temperature control operates within a wide 90F to 325F (32C to 163C) range, making it a reliable choice for hot water boilers, deep fat fryers, and industrial heating equipment. The unit includes a 10 foot liquid filled copper capillary and a 1 4" x 5" sensing bulb for