Zoeller E611 Owner'S Manual Download Page 5

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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.

CAUTION

Power cords, sensor cords, and float cords all must be sealed to prevent gases from the basin entering the control panel.

INSTRUCTIONS FOR CHECKING ROTATION OF THREE PHASE UNITS

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.

DOUBLE SEAL PUMPS

(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 contaminations,

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.

CONTROL PANELS

These pumps are nonautomatic. They require a control panel. A motor starter circuit, control circuit, and alarm circuit within the panel are standard features.

Outdoor 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 components.
(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.)

Pump Wiring Instructions

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.

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.

ZEPA0036

STARTER

MAGNETIC

IS REQUIRED

CIRCUIT TRANSFORMER

3 PHASE A CONTROL

NOTE - FOR 460 VOLT

FLOAT SWITCH

"OFF"

FLOAT SWITCH

"ON"