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actuator itself, timer, relay and/or the conductivity controller. Refer to EcoWater CHC personnel to aid in
the identification of the failure and troubleshooting techniques for your specific application.
No Filter Backwash (BW Failure shown on Control Panel’s screen)-
When the Filter’s Backwash has
failed this indication will be shown, there are several possible causes:
Screen Plugged-
If the filtration screen becomes plugged the outlet pressure of the filter will be
below 20 psi after a Backwash. If you continue to manually initiate a back wash and the
differential pressure never falls, then the screen may need to be removed and cleaned. Refer to
Filtration Screen Cleaning.
Solenoid Failure
- If the solenoid fails, the controller will try to initiate the Backwash cycle, but
no Backwash will occur. To verify disconnect the tubing from the end of the rinse piston and
initiate a back wash. Water should flow (strongly) from the tubing. If no water flows to the
Rinse piston, then verify the solenoid is being energized, if it is the valve must be replaced or
cleaned. Without water being directed to the Rinse piston, the Backwash will not be completed.
This failure could be caused by debris clogging up the screen in front of the solenoid or a failure
of the solenoid itself. If the solenoid has failed, it is recommended that the screen be cleaned.
DP Switch Failure
- If the filter’s back wash can be initiated with the Manual BW button but does
not respond to the DP switch, then it is possible that the switch within the DP switch has failed.
With a volt meter, verify that the switches within the DP switch are closed during operation (this
requires the DP switch gauge to be indicating over 8 psi. If power is not applied to the skid, the
pressure will be reduced and each DP switch should be open as tested with a conductivity meter.
Screen Cleaning Required Message-
This message indicates that the filter has completed 8000
Backwashes and it is recommended at that point to remove the screen from the filter, clean it and
inspect the screen and suction manifold for damage. To clear this message, Turn ON the power
disconnect, and as the initial screen is indicated on the Control Station, press the F1 (Set UP)
button. A password screen will appear, press the screen where the password is shown and a
numerical keypad will appear. Enter 1000 and press the Enter/Return button, the screen will
revert back to the Password screen and then press the F3 button to clear the memory. Press the
Main button (F4) to return to the main screen. You will notice that all counters will be cleared
with this action.
Control Panel Message of “Power OFF”
- No action required, this indicates that the motor controller’s
HOA power switch is in the OFF position.
Control Panel Message of “Pressure LO”-
This indication is shown when the pressures of the Filter or
CHC have not reached the appropriate pressures. Verify that the strainer baskets are clean, and
that no isolation valves are closed. Other problems may be associated with a pump failure or clog
in suction piping. Contact EcoWater Service for further assistance.
Control Panel Message of “Power Failure”-
This indication is shown when the motor starter has
recognized a loss of a Supply Phase, or the motor as caused the failure of the thermal overload.
Turn off the power to the motor starter by turning OFF the power disconnect. Open the motor
controller and reset the Contactor’s Reset knob. Close the motor starter and try to initiate the
pump again. If the pump fails to start, contact the appropriate personnel to verify the power
phases as well as monitor the motor’s amperage. In many cases, problems with the power system
due to weather may cause the thermal overload to fail, if resetting the overload works, please
verify the pump motor’s amperage, if it is within range, monitor the function of the system to see
if the failure continues. Contact EcoWater Service for further assistance.
Summary of Contents for CHC
Page 1: ...INSTALLATION SERVICE MANUAL FOR THE CHC WATER TREATMENT SYSTEM ...
Page 21: ...21 User Screen Structure E coW aterC H C CHC C H C C H C ...
Page 22: ...22 CHC CHC CHC ...
Page 26: ...26 F80 F300 Skid Equipment Views ...
Page 38: ...38 ...
Page 40: ...40 ...
Page 41: ...41 ...
Page 42: ...42 ...