Flat Flange Mounting with Special Coil Element Permits Positioning of Sensing Bulb in the Appropriate Portion of the Air Stream
Unaffected by Barometric Pressure or Cross Ambient Temperatures
Two Single‑Pole, Double‑Throw (SPDT) Snap‑Acting Switches
The A28AK is a two‑stage temperature control with special air coil sensing element and adjustable mounting flange. These duct thermostats are used on roof top units, make‑up heaters, duct heaters, and air handling systems of all types.