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© Copyright 2023 Zoeller
®
Co. All rights reserved.
THREE PHASE INSTALLATION
Three phase pumps are nonautomatic. To operate
automatically, a control panel is required. Follow the
instructions provided with the panel to wire the system.
Before installing a pump, check the pump rotation to insure
that wiring has been connected properly to power source,
and that the green lead of power cord (See wiring diagram),
is connected to a valid ground, Momentarily energize the
pump, observing the directions of kick back due to starting
torque. Rotation is correct if kick back is in the opposite
direction of rotation arrow on the pump casing. If rotation
is not correct, switching of any two power leads other than
ground, should provide the proper rotation.
Refer to wiring diagram supplied with specific electrical
control panel for correct electrical cable termination
locations.
NOTE 1:
Sensor cable includes 5 leads; 2 leads for thermal sensor , 2
leads for moisture sensor, and a green ground lead. Sensor wire colors
are as shown.
(N/C)
SENSOR
330K OHMS RESISTANCE
SEAL FAILURE PROBES
PANEL.
INDUCTION CIRCUIT IN THE CONTROL
LEADS MUST BE CONNECTED TO
SEAL FAILURE MOISTURE SENSOR
STARTER COIL
CONNECTED IN SERIES WITH
RECOMMENDED THERMAL SENSOR
THERMAL
T3
T2
T1
L3
L2
L1
POWER CABLE
3 PHASE MOTOR
3Ø VAC
SENSOR CABLE
BLACK
WHITE
ORANGE
RED
GREEN
TYPICAL 3-PHASE WIRING DIAGRAM
Refer to Sensor Cable and Control Panel sections on page 5.
ZEPA0038E
SINGLE PHASE INSTALLATION (7110 & 7111 ONLY)
All single phase models require start capacitor, run capacitor and relay in the circuit to start and operate properly. These components can be purchased separately
or prewired in a Zoeller control panel. For components purchased separately use the diagram for installation and hookup.
Single phase models are nonautomatic. To operate automatically a control panel must be added to the power circuit. Follow the instructions provided with the panel.
WIRING DIAGRAM
COMPONENT LAYOUT
ZEPA0538
ZEPA0537C
2
1
5
WHITE
PUMP
START
MAIN
BLACK
L2
WHITE
BLACK
RUN CAPACITOR
RED
START CAPACITOR
L1
T2
T1
3
2
1
GREEN
230 VAC 1ø
(SEE CHART)
(SEE CHART)
7110/7111
MODELS
270-324UF 250V
START CAP.
RUN CAP.
50UF 370V
R
RELAY
START
5
2
1
WHITE
RED
PUMP
MAIN
START
L1
L2
BLACK
WHITE
230 VAC 1Ø
FROM CONTACTOR
START
BLACK
START
RELAY
CAPACITOR
RUN CAPACITOR
1
2
3
GREEN
