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
230 VAC 1ø
FROM CONTACTOR
L1
4
START
RELAY
5
WIRING DIAGRAM
230 VAC 1ø
FROM CONTACTOR
L1
L2
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
PUMP
L2
MAIN
GREEN
START
1
2
3
RUN
CAPACITOR
6
1
2
START
CAPACITOR
ZEPA0539
MODELS 631 / 641 / 651
AND 611 / 621 USING GE
PUMP
MAIN
GREEN
START
1
2
3
RUN CAPACITOR
2
1
START
RELAY
5
START
CAPACITOR
ZEPA0540
© Copyright 2021 Zoeller
MODELS 611 / 621
USING SUPCO PR90
RELAY BEFORE
10/1/07
RELAY AFTER 10/1/07
Operation
• 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.
Co. All rights reserved.
®
6
COMPONENT LAYOUT
230 VAC 1ø
PUMP
L1
L2
MAIN
GREEN
T1
T2
START
1
2
3
START
4
6
RELAY
1
5
2
START CAPACITOR
RUN CAPACITOR
(SEE CHART)
(SEE CHART)
MODELS
START CAP.
RUN CAP.
611/621
324-389 UF 125 V
40 UF 370 V
COMPONENT LAYOUT
A
230 VAC 1Ø
L1
L2
MAIN
GREEN
T1
T2
START
1
2
3
2
1
R
START
5
RELAY
START CAPACITOR
RUN CAPACITOR
(SEE CHART)
(SEE CHART)
MODELS
START CAP.
RUN CAP.
611/621
216-259UF 250V
40UF 370 V
631/641/651
270-324UF 250V
50UF 370 V
(Continued on next page)
ZEPA0477B
PUMP
ZEPA0537B