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  • 20"/100# 36" 90SEC 120/240V P29 Series Low Pressure Cutout Control With Time Delay Relay

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20"/100# 36" 90SEC 120/240V P29 Series Low Pressure Cutout Control With Time Delay Relay

Price: $282.77
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Manufacturer: Johnson Controls

Description: 20"/100# 36" 90SEC 120/240V

Category: Refrigeration Controls

P29 Series Low Pressure Cutout Control
With Time Delay Relay


The P29 combines a pressure
sensing mechanism with a time

A drop in pressure
energizes the time delay relay
which opens a contact after a
predetermined time period.

There are two principal
applications for this control:

1. Chiller Low Temperature
Cutout: Pressure element is
connected to the suction side
of a chiller refrigeration
system and the time delay
relay is wired to the
compressor control circuit.
Prolonged low suction
pressure, such as pressure
caused by a low temperature
condition, will cause the
control to shut down the
refrigeration compressor.

2. Industrial Equipment, Oil
Pressure Lubrication
Cutout: On any electrically
driven machine with a forced
oil system, the pressure
element is connected to the
lube oil system and the time
delay relay is wired in the
control circuit. The control
time delay allows oil pressure
to build up to normal on
start-up or recover from
temporary fluctuations. A

sustained loss of oil pressure
will cause the control to shut
down the machine.

! CAUTION: Use P29

pressure controls only in

normal indoor environments

or outdoors where it is

protected from direct

exposure to weather.

Replaces Part Numbers: P29AC-3, CARP29AC-3

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