Flint & Walling Constant Pressure Pumping Stations - ADW2W73 - Manual (Page 6)

6 (FW1365)
95 North Oak St. • Kendallville, IN 46755 • 1-800-345-9422
tABle 4 SySteM trOuBleShOOtInG GuIDe
Symptom
Possible Cause Corrective Action
Water flow rate
is not as high as
expected.
Motor/Pump is running backwards. Reverse connection of motor cable wires at connection
point U & V.
Pump capacity cannot supply the demand. Use pump with higher flow rating (if head requirement is
still satisfied).
Temperature in the controller is too high. If
the controller’s heat exchanger becomes too
hot, the controller will reduce the switching
frequency to the motor to lower the power
consumption. Make sure there is at least 4 inches of room around the
controller for movement of air. Avoid direct sunlight.
Reduce ambient temperature below 104°F (40°C). Increase
input voltage if below 230 VAC.
Disconnected or broken wire feeding motor. Check motor, motor wiring and splices. Make certain all
connections are tight.
Excessive
pressure
fluctuations.
Waterlogged tank. Check tank for bladder damage. Replace if necessary.
Reset the tank pre-charge pressure (should be 70% of
pressure sensor setting).
Pressure tank is too small for flow rating of
the pump. Use larger tank (refer to Table 3 on Page 4 for minimum
Pressure Tank size).
Motor runs
continuously
with no flow
demand. Leak in the household or outdoor plumbing. Check for leaky faucets, valves and/or pipe fittings and
repair.
Leak in the pitless adapter. Re-seat the pitless adapter. Replace seal as needed.
unDerlOAD IntellIGent reSet
(Display showing  )
If a motor Underload fault condition occurs, the most likely
cause is an overpumped well (dry well) or loss of incoming
feed water to the pump. In a dry well situation to allow the
well to recover, the Artesian Drive controller will wait 30
seconds to 5 minutes, determined by the amount of time
the motor had been running before sensing the underload,
before restarting the motor. For example, the first time the
fault occurs and the pump has been running 6 minutes, the
controller stops the motor and will wait 30 seconds before
attempting to restart the pump. If the system would then run
for 2 minutes and an underload fault recurs, the controller
will wait 3 minutes before attempting to restart the pump.
This schedule allows for the minimum off-time possible based
on the recovery time of the well or water feed supply.
If there is an obstruction (such as a closed valve) between the
pump and the pressure sensor, the controller will also sense
an underload is this “dead head” condition stopping the
motor to avoid damaging the pump.
0 1 2 3 4 5 6 7 8
6.0
5.0
4.0
3.0
2.0
1.0
0.0
Run Time (Min.)
Off
Time (Min.)
IL0750
figure 12
Over-teMPerAture
The Artesian Drive controller is designed for full power
operation in ambient temperatures up to 104°F (40°C)
as long as the input voltage is kept at 230 VAC. Under
extreme thermal conditions, the controller will reduce the
switching frequency in an attempt to avoid shutdown. If the
temperature of the controller is still too hot the controller will
shut itself off to avoid causing damage to itself. Full pump
output is restored when the controller temperature cools to a
safe level.
NOTE: The Artesian Drives are factory programmed to
F&W pumps to provide optimum performance and motor
protection. The Artesian Drive can be used with other
pumps, but the maximum motor amperage needs to be
compared to the factory programmed current value (refer
to the Specifications section under the appropriate model).
If the maximum motor current varies more than 5% from
the programmed value, the motor current value in the drive
needs to be changed for motor protection and optimum
performance. For details on how to change this value in the
drive, please contact Technical Support at 1-800-345-9422.