PRESSURE TANK CONNECTION
ELECTRICAL
Precharged Tank Connection
When a precharged tank is used, no AVC is necessary.
See Figure 12 for typical precharged tank installation.
A precharged tank contains a factory provided air
charge.
NOTICE:
Your pump pressure switch is set for a 40-60 PSI
range and requires a tank pre-charge of 40 PSI for proper
operation (see Figure 13). See tank owner’s air charge. An
annual check on tank charge is recommended.
Disconnect power before working on
pump, motor, pressure switch, or wiring.
Motor Switch Settings
If the motor can operate at either 115 or 230 volts, it
is set at the factory to 230 volts. Do not change
motor voltage setting if line voltage is 230 volts, or if
you have a single voltage motor.
NOTICE:
Never wire a 115 volt motor to a 230 volt
line.
Remove Motor End Cover
You will need to remove the motor end cover to
change the voltage setting. The illustration above also
shows the pressure switch. If the power supply con-
nection still needs to be made, the pressure switch
cover will need to be removed.
Your motor terminal board (located under the motor
end cover) should look like one of those below.
Plug Type Voltage Selector
8
1054 0697nc
10
20
30
Figure 13 – Checking Tank Pre-charge
Check Pressure with
Tire Gauge
Captive-Air® Tank
20
100
80
60
40
2358b 0697nc
Figure 12 – Pump With Captive-Air
®
Tank
Pressure
Regulator
Piping Tee and
1” Discharge
Relief Valve
To Service
TANK
Figure 14 – Removing Motor End Cover
Motor End Cover
Pressure Switch
Ground Wire Connection
Voltage Change Plug
Pressure Switch
Power Connections
Figure 15 – Voltage Set To 230 Volts, Plug Type
