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Process Flow Systems
Model 322
Three Phase Duplex Alternating Pump Control with Override
The Model 322 control panel is designed to control two 208/240/480VAC three phase pumps in industrial and commercial water and sewage systems. The controller is provided with a pump selector switch that can be set to alternate the pumps to equalize wear or to call either pump to activate first with the other pump to activate in lag condition. If an alarm occurs, the alarm activates the audible-visual system. The alarm conditions include: high water, float out-of-sequence, pump fail-to-run, seal failure (optional). Common applications include: lift stations, pump chambers, and irrigation systems.
Features
Panel Features:
NEMA 4X enclosure for indoor/outdoor use
Red alarm beacon provides 360° visual check of alarm condition
Alarm horn provides audio warning of alarm condition
Exterior alarm test/normal/silence switch allows horn and light to be tested and horn to be silenced in an alarm condition; alarm automatically resets once alarm condition is cleared
Horn silence relay
IEC motor contactors control pumps by switching electrical lines
Multi-tap transformer (208/240/480 VAC primary) provides 120V control voltage
Motor protective switches provide adjustable overload, branch circuit protection and pump disconnect
Alternating circuit board (U.S. patent 5,909,532) provides pump control and alternation
Hand/Off/Auto (HOA) switches for manual pump control
Control On/Off switch
Green pump run indicator lights
Alarm and control fuses/indicators
Float switch terminal block
Input power terminal block
Ground lugs
Options:
For a complete listing of available options, please view the backside of the catalog page.
UL/cUL Listed
Five-Year Limited Warranty
Specifications
ENCLOSURE:
14 x 12 x 6 inches (35.56 x 30.48 x 15.24 cm)
NEMA 4X (ultraviolet stabilized thermoplastic with removable mounting feet for indoor/outdoor use)
ALARM HORN:
83 – 85 decibel rating