Wiring The Controls And; Switch; Control Box - Xylem Goulds M05421 Manual De Instalación, Operación Y Mantenimiento

4.0 WIRING 4.0 WIRING
WARNING
THE THE
CONTROLS and CONTROLS and

SWITCH

SWITCH
Hazardous voltage
can shock, burn or
cause death.
4.1 Mounting the Motor

Control Box

Single phase 3-wire control boxes
meet U.L. requirements for Type
3R enclosures. They are suitable for
vertical mounting in indoor and out-
door locations. They will operate at
temperatures between 14ºF (-10ºC)
and 122ºF (50ºC). Select a shaded,
dry place to mount the box. Insure
that there is enough clearance for the
cover to be removed.
4.2 Verify Voltage and Turn
Supply Power Off
Insure that your motor voltage and
power supply voltage are the same.
Place the circuit breaker or discon-
nect switch in the OFF position to
prevent accidentally starting the
pump before you are ready.
Three-phase starter coils are very
voltage sensitive; always verify actual
supply voltage with a voltmeter.
High or low voltage, greater than
±10%, will damage motors and
controls and is not covered under
warranty.
4.3 Connecting Motor Leads
to Motor Control Box,
Pressure Switch or
Starter
Caution Do not power the
WARNING
unit or run the pump until
all electrical and plumbing
connections are completed.
Verify that the disconnect
Hazardous voltage
can shock, burn or
or breaker is OFF before
cause death.
connecting the pressure switch line
leads to the power supply. Follow
all local and national codes. Use a
disconnect where required by code.
10
A. Three-Wire Single Phase Motor
Connect the color coded motor leads
to the motor control box terminals
- Y (yellow), R (red), and B (black);
and the Green or bare wire to the
green ground screw.
Connect wires between the Load
terminals on the pressure switch
and control box terminals L1 and
L2. Run a ground wire between the
switch ground and the control box
ground. See Figure 4 or 5.
B. Two-Wire Single Phase Motor
Connect the black motor leads to the
Load terminals on the pressure switch
and the green or bare ground wire
to the green ground screw. CentriPro
2-wire motors will not work with
Franklin Electric PumpTec. Use a
PumpSaver. See Figure 3.
C. Three phase motors
Connect the motor leads to T1, T2,
and T3 on the 3 phase starter. Con-
nect the ground wire to the ground
screw in the starter box. Follow
starter manufacturers instructions
for connecting pressure switch or
see Figure 6.
4.4 Connect To
Power Supply
Complete the wiring by
WARNING
making the connection
from the single phase pres-
sure switch Line terminals
to the circuit breaker panel
Hazardous voltage
can shock, burn or
or disconnect where used.
cause death.
Three phase - make the connections
between L1, L2, L3, and ground on
the starter to the disconnect switch
and then to the circuit breaker panel.
Three phase installations must be
checked for motor rotation and
phase unbalance. To reverse motor
rotation, switch (reverse) any two
leads. See the instructions for check-
ing three phase unbalance in section
4.6. Failure to check phase unbalance
can cause premature motor failure