Donaldson Company, Inc.
28
Delta P Control
When combined with a pulse timer, the Delta P
control monitors the differential pressure between
the clean- and dirty-air plenums, providing a visual
display of the filter condition. Set the high-pressure
ON and low-pressure OFF setpoints to control the
filter cleaning system.
Note:
The Delta P control is factory set for 115-V.
To operate at 230-V, the jumper settings on
the printed circuit board must be changed.
See Optional Settings on Page 30.
Caution!
Electrical installation must be
performed by a qualified electrician
and comply with all applicable
national and local codes.
Turn power OFF during installation
or maintenance.
Do not install in classified hazardous
atmospheres without an enclosure
rated for the application.
1. Choose a location near the unit that permits
access to the keypad for adjustments and
observation of the pressure drop. If possible,
mount the control indoors.
2. Mount the control enclosure using four self-
drilling, self-tapping screws.
Note:
Use vibration isolators in high vibration areas.
3. Install conduit between the control
s enclosure,
the solid-state timer, and the solenoid valve
enclosure on the collector.
4. Using the wiring diagram provided with the
control, make the wiring connections to the
Delta P control, the solid-state timer, and the
solenoid valves. Make the required connections
to the motor starter
s low-voltage terminals.
Note:
Use proper grounding and handling
procedures to prevent permanent
damage to this device. Handle the
printed circuit board by the edges
only.
Do not
touch the socketed E
2
PROM pins.
5. Wire the auxiliary alarm circuit, if desired. This
relay activates the ALARM light on the control
panel if the pressure drop reaches the alarm
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Delta P Control Display Panel
