Tighten the strain relief on the pressure switch/transducer
lead .
IL0026
Figure 7 Pressure Switch
Figure 8 Pressure Transducer
A 10 foot section of cable is provided with the system to
connect to the pressure switch / transducer. Lengths of up
to 100 feet can be used, provided the appropriate shielded
cabling is used. Consult the factory for proper cable
specification.
7 .
Use the appropriate strain relief or conduit connectors (not
included) .
8 .
Replace the cover . Do not over-tighten the screws .
9 .
Set the pressure tank pre-charge to 70% of the desired
water pressure setting . To check the tank's pre-charge,
de-pressurize the water system by opening a tap . Measure
the tank pre-charge with a pressure gauge at its inflation
valve and make the necessary adjustments .
NOTE: For pressure switch installation (VS systems) only, Follow
steps 10, 11 & 12 . (Figure 7)
For pressure transducer installations, skip to Step 13 .
10 . Connect the other end of the pressure switch cable with the
two spade terminals to the pressure switch . The connections
are interchangeable .
11 . The pressure switch tells the conroller if the system pressure
falls below the setpoint . The switch is preset at the factory
to 50 psi, but can be adjusted by the installer using the
following procedure:
a . Remove the rubber end-cap .
b . Using a 7/32" Allen wrench (provided), turn the adjusting
screw clockwise to increase pressure and counter-
clockwise to decrease pressure . The adjustment range is
between 30 and 80 psi (1/4 turn = approximately 3 psi) .
c . Replace the rubber end cap .
d . Reset the pressure tank pre-charge to the appropriate
pressure
12 . Cover the pressure switch terminals with the rubber boot
provided .
For pressure transducer installation (TVS systems) only, Follow
Step 13 . (Figure 8):
Remove rubber end cap
to adjust pressure . Use
7/32" allen wrench
Pressure switch
boot
IL1875
Flint & Walling © Copyright 2022. All rights reserved.
13 . Connect the free end of the transducer cable to the
transducer by lining up the keyway on the connector to the
transducer, pressing the cable into place & then tightening
the thumbscrew finger tight .
START-UP OPERATION
Apply power to the controller . The display should briefly show
"Please Wait Initializing" and then read "Press Enter to Begin
Set-Up" . Pressing ENTER button will begin taking you through
the quick set-up menu where you can select Pump type
(Submersible or Above Ground); Motor type (Three Phase, 3W
Single Phase - if option is available); Maximum Motor Current;
Maximum Frequency; Control (Switch, Transducer) by using the
UP & DOWN buttons to change the setting and then pressing
the ENTER button to save the choice . Once all the choices have
been selected, press the STOP/START button to save the setting
to the controller's memory . The drive will then spin the motor
in a reverse direction for a couple of seconds and then begin
to run the motor in the correct direction and begin regulating
the pressure . While the drive is running the motor, for VS drive
kits (pressure switch) the display will show the current that the
motor is drawing and the frequency that is being supplied . When
there is no water use, the controller will shut off the output to the
motor and the display will show "Motor is in Standby Mode" . For
TVS drive kits (transducer) the display will show the transducer
pressure reading, current that the motor is drawing and the
frequency that is being supplied .
Common 230V Max Current Settings
HP
½
¾
1
1 .5
2
3
5
CAUTION: For proper motor protection and system operation,
installer needs to verify max amp draw of motor installed .
NOTE: Conventional private water systems intermittently fill a
pressure tank as commanded by a standard pressure switch
(e .g . 30 - 50 psi) . The constant pressure controller maintains
a constant pressure at the pressure switch/transducer up to
the maximum capability of the motor and pump . Although the
pressure is constant at the pressure switch or transducer,
pressure drops may be noticeable in other areas of the home
when additional taps are opened . This is due to limitations in the
plumbing and will be more pronounced the further the taps are
from the pressure switch/transducer . This would be true of any
system, and if observed, should not be interpreted as a failure in
the performance of the constant pressure controller .
Serious or fatal electrical shock may
result from contact with internal electrical components.
DO NOT, under any circumstances, attempt to modify
connections to the drive until power has been removed and
10 minutes have passed for internal voltages to discharge!
Underload Sensitivity
The controller is configured at the factory to ensure detection
of Underload faults in a wide variety of pumping applications
including dead head and run dry conditions . In very rare cases
(as with certain pumps in shallow wells) this trip level may result
6
3-Phase
Single Phase
3-Wire
2 .9
6
3 .8
8
4 .7
10 .4
5 .9
11 .5
8 .1
13 .2
10 .9
17 .8