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Once the operating settings and parameters have been determined by the data entered in the previous pages,
the DC4500 Controller can then be programmed. Supply power to the controller. Read the conductivity and
verify the accuracy using a calibrated meter and conductivity sample. Calibrate the controller as needed. See
Calibration Section.
In the Main Menu, enter the required values for Conductivity, Differential, Low Alarm and High
Alarm.
Go to the FEED menu screen (see FEED programming sheet in manual) and enter the required mode
and settings for the chemical inhibitor pump control.
Go to the SET UP menu screen (see SET UP programming sheet in manual) and enter the Flow
Alarm Option, Trip Actuation, 4 - 20 mAmp settings, Display Mode, Pulse Output Pump Control, and
Control Cooling Tower.
Go to the CLOCK menu screen (see CLOCK programming sheet in manual) and enter the current
day and time information as well as the number of weeks required for the repeating Biocide Pump
programming.
Go to the BIOCIDE pump menu screen (see BIOS programming sheet in manual) and enter the
required options for the Biocide Pumps.
Use the MANUAL OUTPUTS menu (see MANUAL OUTPUTS programming sheet in manual) to
check that all controlled devices are properly connected.
This completes the cooling tower start-up. Return the display to the ‘SYSTEM RUN’ or ‘CONDUCTIVITY
Reading
’ screen to begin operation.
The system will return to the ‘SYSTEM RUN’ mode automatically on its own after
three (3) minutes if no keys are pressed.
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