Johnson Controls A28AA-4 Temperature Control
Johnson Controls A28AA-4 Temperature Control, Two Stage, 2 SPDT Switch Action, 120/208/240/277 Vac, 30/110 Degree Setpoint Range, 3 1/2 Degree Differential Each Stage, 3 Degree Fixed Differential Between Stages, 1 3/8" x 2 1/4" Coiled Bulb, Convertible Range Adjuster
A28AA-4 is identical to A28AA-4C
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