Common Questions Is the SA159-17 compatible with both steam and hot water boilers

Key Benefits for Technicians Corrosion Resistance: The nickel-plated finish prevents oxidation and extends the service life of the valve body in demanding environments

it is recommended to inspect and reuse or replace the silicone tubing to ensure a vacuum-tight seal during installation

this contactor provides reliable control of compressors

Johnson Controls A28AA-37 Temperature Control Refrigerant Common Questions Is the SA159-17Temperature Control, Two Stage, 2 SPDT Switch Action, 120 208 240 277 Vac, 60 140 Degree Setpoint Range, 5 Degree Differential Each Stage, 2 7 Degree Adjustable Differential Between Stages, 3 8" x 4" Bulb, 6' Capillary Length, Knob Range Adjuster A28AA 37 is identical to A28AA 37C