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Installation and checking of electrical circuits and hardware should be performed by a qualified licensed electrician.
"Risk of electrical shock" Do not remove power supply cord and strain relief or connect conduit directly to the pump.
Power cords, sensor cords, and float cords all must be sealed to prevent gases from the basin entering the control panel.
CAUTION
It is very important that these units be connected for proper rotation. Since no rotating parts are visible without removing the pump from the pit,
the rotation on 3 phase units should be checked before installation into the pit as follows:
After the proper electrical connections are made, momentarily energize the pump observing the direction of kick back due to starting torque. The rotation is
correct if the kick back is in the opposite direction of the rotation arrow. If the rotation is not correct, disconnect power and switch any two power leads. Turn
power back on and retest for proper rotation.
(1) Double seal pumps offer extra motion protection from damage caused by seal failure.
(2) Pumps should be serviced on a periodic preventative maintenance schedule.
(3) Oil in the motor housing and lower seal cavity must be checked when pump is serviced. If oil from the motor housing contains water or other contamina-
tions, both seals should be replaced during maintenance. Always replace with new factory recommended oil and service parts. All warranty repairs must
be made by Zoeller Authorized Service Stations.
These pumps are nonautomatic. They require a control panel. A motor starter circuit, control circuit, and alarm circuit within the panel are standard features. Out-
door enclosures and alternating relays are often required. Variable level float switches are the most common level sensing device. The following should be noted.
(1) Single phase units have externally mounted capacitors and starting relays. Your control panel should have provisions for mounting these starting compo-
nents.
(2) All pumps require overload protection in panel. Use with approved motor control that matches motor input in full load amperes with overload element(s)
selected or adjusted in accordance with control instructions.
(3) Hazardous Location pumps require panels that offer intrinsically safe relays and all other NEC requirements must be followed (see Article 500, 501 & 502
plus any others that apply.)
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.
TYPICAL WIRING DIAGRAM
"ON"
FLOAT SWITCH
"OFF"
FLOAT SWITCH
NOTE - FOR 460 VOLT
3 PHASE A CONTROL
CIRCUIT TRANSFORMER
IS REQUIRED
The above wiring diagram shows a typical hookup for a 230 volt, 3 phase pump,
two variable level float switches, and a magnetic starter. It is not intended that
this diagram cover all applications. See wiring diagram supplied with specific
electrical controllers and panels.
Pump Wiring Instructions
INSTRUCTIONS FOR CHECKING ROTATION OF THREE PHASE UNITS
DOUBLE SEAL PUMPS
Three Phase Installation
230 VOLTS, 60 HZ., 3 PH
L1
L2
L3
MAGNETIC
OL
STARTER
M
3
OL
OL
OL
2
T1
T2
T3
PUMP
MOTOR
© Copyright 2017 Zoeller
CONTROL PANELS
"600 SERIES" FOUR CONDUCTOR AWG. POWER CORD SIZE
MODEL
BHP
611
1
621
1.5
ZEPA0036
631
2
641
3
651
5
661
7.5
12/4 AWG.
.64"
8/4 AWG.
.93"
Co. All rights reserved.
®
5
TYPICAL 3-PHASE WIRING DIAGRAM
3ø VAC
L1
L2
L3
T1
T2
T3
POWER CABLE
3 PHASE MOTOR
230 / 1 PH
200 / 3 PH
230 / 3 PH
12 AWG.
12 AWG.
12 AWG.
12 AWG.
12 AWG.
12 AWG.
12 AWG.
12 AWG.
12 AWG.
12 AWG.
12 AWG.
12 AWG.
8 AWG.
12 AWG.
12 AWG.
N/A
8 AWG.
8 AWG.
Approximate cord diameter per gauge
ZEPA0038F
460 / 3 PH
575 / 3 PH
12 AWG.
12 AWG.
12 AWG.
12 AWG.
12 AWG.
12 AWG.
12 AWG.
12 AWG.
12 AWG.
12 AWG.
12 AWG.
12 AWG.
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