eliminating the guesswork during a service call

ensuring seamless integration with existing control logic and power blocks for a clean

Lead-Free Reliability: Fully compliant with lead-free plumbing requirements for safe water delivery

protecting the heat exchanger and surrounding components from excessive thermal exposure

Mechanical Calibration: Reliable bimetal coil technology eliminates the need for external power or batteries

Johnson Controls A28AA-28 Temperature Control Freon eliminating the guesswork during aTemperature Control, Two Stage, 2 SPDT Switch Action, 120 208 240 277 Vac, 30 110 Degree Setpoint Range, 3 1 2 Degree Differential Each Stage, 2 7 Degree Adjustable Differential Between Stages, 12' Averaging Bulb, 6' Capillary Length, Screwdriver Range Adjuster