Johnson Controls A28AB-1 Temperature Control Refrigerant Limit switches typically require an

Limit switches typically require an open on rise action for safety

1/2-inch OD aluminum line designed for critical fuel gas and pilot line applications in commercial and residential HVACR systems

built to withstand typical indoor HVAC environments

Inspect the material for cracks

high-durability replacement for the legacy Watts N1 model

Johnson Controls A28AB-1 Temperature Control Refrigerant Limit switches typically require anTemperature Control, Two Stage Changeover Control, 2 SPDT Switch Action, 120 208 240 277 Vac, 20 80 Degree Setpoint Range, 3 1 2 Degree Differential, 3 8" x 5" Bulb, 6' Capillary Length, Screwdriver Slot Range Adjuster