Manufacturer: Johnson Controls
Description: 2 STG TEMPCNTL, 6'CAP, 2-SPDT
Category: Temperature Controls
A28 Series Two-Stage Temperature
Control With NEMA 1 Enclosure
These two-stage controls are
designed to cover a broad range
of general purpose operating
temperature control applications
in the refrigeration, air
conditioning and heating fields.
Two SPDT switches permit
independent control circuits.
Each switch may be wired for “open high” or “close high”
action, as required, providing
automatic changeover on
heating-cooling or similar
requirements. A jumper across
the “common” terminals is
supplied as a standard feature.
All Series A28 temperature
controls are designed for use
only as operating controls.
Where an operating control
failure would result in personal
injury and/or loss of property, it is
the responsibility of the installer
to add devices (safety, limit
controls) or systems (alarm,
supervisory systems) that protect
against, or warn of, control
Replaces Part Numbers: A28AA-20, CARA28AA-20