Manufacturer: Johnson Controls
Description: LIMIT CONTROL
Category: Refrigeration Controls
These air conditioning limit
controls are specially designed for
package residential or commercial
air conditioning units. They are
for use with all non-corrosive
refrigerants within pressure range
of controls -- water or air cooled.
They may also be used for
refrigeration applications where a
fixed range setting is acceptable.
Models are provided for low side
pressure, high pressure or dual
pressure and may be supplied
with automatic recycle or manual
· Accurate repeat performance
and long life. Test strength far
above the most severe
operating and standby
· Compact -- less than the size
of a cigarette pack.
· Transmission of diaphragm
movement is by a stainless
steel power lever operating on
a stainless steel pivot -- load
aligned to reduce friction.
· Trip-free manual reset --
contacts cannot be blocked
closed. Reset tab must be
released before restart.
Series P20 controls feature many
desirable advantages not found in
any other controls. Exclusive,
service proved pressure element
(about the size of a quarter)
provides accurate repeat
performance -- with substantial
safety factor for long life under
extreme operating and equalized
standby pressures. Controls are
compact and ideal for panel
mounting and all applications
where space is at a premium.
Replaces Part Numbers: P21QAC-1, CARP21QAC-1