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FIGURE 2 - DISCHARGE PLUMBING
Pressure Tank
Pump & Motor
Assembly
Pressure Switch
FIGURE 3 - PRESSURE SWITCH ELECTRICAL
CONNECTIONS, FACTORY PRE-SET TO 230 VOLTS
Differential Nut
GROUND
The pressure switch is set to start the pump at 30 psi and
to stop at 50 psi. THE PRESSURE SWITCH SHOULD
NOT REQUIRE ADJUSTMENT FOR A TYPICAL PUMP
INSTALLATION. Adjust the switch only if necessary
using the following procedure:
1.) Turn DIFFERENTIAL nut (See Figure 3 and
Example) clockwise to increase the pressure difference
between CUT-IN (pump on) and CUT-OUT (pump off) by
raising the CUT-OUT pressure.
2.) Turn RANGE nut (See Figure 3 and Example)
clockwise to simultaneously increase both the CUT-IN
and CUT-OUT pressure equally.
NOTE: An optional pressure gage is required when
adjusting the pressure switch to determine when the
desired pressure settings are achieved. A pressure port
has been provided in the top of the pump near the
discharge for this purpose.
Gate Valve
Check Valve
Union
Service Pipe
Range Nut
To circuit breaker
or fused
disconnect switch
C A U T I O N
DO NOT switch on the power before the
pump is primed by filling the pump case completely full of
water, as damage may occur to the seal and other
internal components if run dry.
PRESSURE SWITCH ADjUSTMENT ExAMPLE:
ASSUMES PRESSURE SWITCH IS INITIALLY SET
WITH A CUT-IN PRESSURE OF 30 PSI AND CUT-OUT
PRESSURE OF 50 PSI.
Starting
CUT-IN /
CUT-OUT
Adjustment
(psi)
Clockwise turn of
30 / 50
Differential Nut
Clockwise turn of
30 / 50
Range Nut
NOTICE: FAILURE TO ADJUST PRESSURE SWITCH
CUT-IN AND CUT-OUT SETTINGS PROPERLY WILL
CAUSE THE PUMP TO RUN CONTINUOUSLY OR
CYCLE RAPIDLY. CONTINUOUS OPERATION OR
RAPID CYCLING MAY DAMAGE PUMP AND MAY
CAUSE PREMATURE FAILURE OF OTHER SYSTEM
COMPONENTS.
INSTALLATION RECORDS
To keep an accurate record of your installation, be sure
to fill out the data below:
Date of Installation: _____________________________
Model No: ____________________________________
Depth of Well (ft.): ______________________________
Depth of Water (ft.): _____________________________
Inside diameter of well: __________________________
Suction pipe size: ______________________________
Pressure switch setting
C.I.: _____________
C.O.: _____________
Suction pipe length (ft.): _________________________
Discharge pipe length (ft.): _______________________
Motor: _______________________________________
HP: _________________________________________
Volts: ________________________________________
Wire gauge size: _______________________________
ELECTRICAL INSTALLATION
W A R N I N G
WARNING
shock, burn or cause death.
C A U T I O N
electrical connections, consult a licensed
electrician.
C A U T I O N
in permanent damage to the motor. All
electrical wiring should meet the local electrical code.
Final
Nut
CUT-IN /
CUT-OUT
(psi)
30 / 60
40 / 60
Hazardous voltage can
If you are not sure of proper
Improper wiring can result
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