Johnson Controls A28AJ-4 Temperature Control R-410A Engineered for unit heaters and

Engineered for unit heaters and duct furnaces

Direct Replacement: Simplifies maintenance by serving as the standard replacement for the TS394-3B-72Q sensor

protecting the compressor from thermal overload and catastrophic failure due to restricted airflow

Designed to operate across a broad -30 to 100 degree Fahrenheit temperature range

Johnson Controls A28AJ-4 Temperature Control R-410A Engineered for unit heaters andTemperature Control, Two Stage, 2 SPDT Switch Action, 120 208 240 277 Vac, 20 80 Degree Setpoint Range, 2 Degree Differential Each Stage and 2 7 Degree Differential Between Stages, 3 8" x 5" Sensing Bulb, 6' Capillary Length, Knob Range Adjuster