Pump Wiring Instructions - Zoeller 600 Series Owner's Manual

Owner's manual (24 pages)

Table of Contents

nstallation and checking of electrical circuits and hardware should be performed by a qualiﬁ ed 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 ﬂ oat 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.

(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.

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

dard features. Outdoor enclosures and alternating relays are often required. Variable level ﬂ oat 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.)

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 ﬂ oat switches, and a magnetic starter. It is not intended that

this diagram cover all applications. See wiring diagram supplied with speciﬁ c

electrical controllers and panels.