6
5
4
1
6
2
WHITE
RED
PUMP
MAIN
START
L1
L2
BLACK
WHITE
230 VAC 1ø
FROM CONTACTOR
RUN
START
BLACK
START
RELAY
CAPACITOR
CAPACITOR
1
2 3
GREEN
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
2
4
1
6
5
WHITE
PUMP
START
MAIN
BLACK
L2
WHITE
BLACK
RUN CAPACITOR
RED
START CAPACITOR
L1
T2
T1
START
RELAY
3
2
1
GREEN
230 VAC 1ø
(SEE CHART)
(SEE CHART)
MODELS
START CAP.
RUN CAP.
40 UF 370 V
324-389 UF 125 V
611/621
A
Operation
GENERAL
Zoeller Pump Company pumps are lubricated and tested at the factory prior to
shipment and require minimum pre-start-up maintenance.
Maximum continuous operating temperature of pump liquid for standard model
pumps must not exceed 140 °F (40 °C). For longest service life all pumps should
be totally submerged on long pumping cycles and a maximum of 1/2 hour run
time per hour.
These units are not designed to handle liquids other than water or sewage. If
pump is used in water contaminated with heavy, viscous, or abrasive materials,
the warranty will be voided.
NAMEPLATE DATA
The nameplate, located on the top of pump, indicates specific information about
the construction of the pump. The model number, date code, and serial number
information should be recorded on the front page in the “Owner’s Information”
section of this manual.
SHORT TERM STORAGE
If pump is to be stored, the following is advised:
• Store pump inside whenever possible or cover with some type of protective
covering.
• Tape or seal in plastic bag the terminal ends of wire leads.
Single Phase Installation
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 Zoeller Pump Company control panel. For components purchased separately used 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
ZEPA0539
ZEPA0477B
WIRING DIAGRAM
ZEPA0537B
COMPONENT LAYOUT
ZEPA0540
MODELS 611 / 621
USING SUPCO PR90
RELAY BEFORE
10/1/07
MODELS 631 / 641 / 651
AND 611 / 621 USING GE
RELAY AFTER 10/1/07
• Pump is to be stored in an upright position. Seal leaks that occur in storage
to a pump laying on its side will not be repaired under warranty.
• The impeller should be rotated every six months in order to keep the seals
lubricated and not develop a permanent set.
If panel is to be stored, the following is advised:
• Store the panel inside whenever possible and leave in the shipping box.
• All openings shall be sealed.
• Store in an upright position.
• Do not stack anything on top of panel.
START-UP PROCEDURE
Before placing the equipment into operation the following checked:
• Correct pump rotation (3 Phase units only).
• Clean pit.
• Panel dry and securely installed.
• Floats positioned properly.
• Discharge valves open.
• 3/16” (4 mm) vent hole drilled in pipe between check valve and pump.
(Continued on next page)
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)
R
RELAY
START
START CAP.
MODELS
RUN CAP.
611/621
216-259UF 250V
40UF 370 V
631/641/651
270-324UF 250V
50UF 370 V
© Copyright 2023 Zoeller
®
Co. All rights reserved.
