4
© Copyright 2020 Zoeller
®
Co. All rights reserved.
PUMP WIRING INSTRUCTIONS
FOR YOUR PROTECTION, ALWAYS DISCONNECT THE PUMP FROM ITS POWER SOURCE BEFORE HANDLING.
All electrical connections must be wired and grounded in accordance with the National Electrical Code and all applicable local codes
and ordinances.
Risk of electrical shock.
Do not remove the power supply cord and strain relief or connect conduit directly to pump.
Installation and checking of electrical circuits and hardware should be performed by a qualified, licensed electrician.
254 mm (10") MAX.
127 mm (5") MIN.
FIGURE 2 Pump Control Switch Installation
Use the diagram above to secure the float switch properly and obtain the proper tether to customize the on-off cycle to each application. Note
the minimum off level shown above. On Prepackaged Systems, the tether length is set at 5”.
NOTE:
Failure to keep within proper tether
limits may prevent reliable switch operation.
NOTE
: Cable must be mounted in horizontal
position.
Determining Pumping Range
in Inches (1 inch - 2.5 cm)
Use only as a guide. Due to weight of
cable, pumping range above horizontal
is not equal to pumping range below
horizontal. Ranges are based on testing
in nonturbulent conditions. Range may
vary due to water temperature and cord
shape. As tether length increases, so
does the variance of the pumping range.
Tether Length (inches)
5
10
Pumping Range (GPM)
9
13.5
min.
max.
SK305D
SK2651
ALARM FLOAT
PUMP CONTROL
FLOAT TREE
FLOAT
406 mm (16")
MIN. OFF
Electrical Data
Amps
KVA
Code
Winding
Resistance
Line-to-Line
Model
BHP
RPM
Voltage
Phase
Hertz
Full Load
Shut Off
Locked
Rotor
E7020
1
1750
230
1
60
7.0
7.0
24.5
G
2.3 / 2.0*
E7021
2
1750
230
1
60
10.5
10.5
44.0
B
1.80 / 1.60*
RE & RWD7020
1
1750
230
1
60
7.0
7.0
24.5
G
**
RE & RWD7021
2
1750
230
1
60
10.5
10.5
44.0
B
**
I7021
2
1750
200
1
60
12
12
49.5
B
1.4 / 1.3*
RI & RWH7021
2
1750
200
1
60
12
12
49.5
B
**
* Line to line reading from the electrical load will only reflect the run winding resistance. Start winding resistance can only be measured after
removing the cover.
** Start and run winding resistance can only be measured after removing the cover and checking at through wall terminal.
FIGURE 3A Models E7020,
E7021 and I7021
Wiring Diagram
002397
RUN
O.L.
MOTOR
(3)
BLUE
RED
WHITE
BLACK
GREEN
L1
L2
START
(1)
(2)
YELLOW
BLUE
RED
CAPACITOR
(WHITE)
(BLACK)
(BROWN)
FIGURE 3B Models RE7020,
RE7021 and RI7021 Wiring Diagram
(6932 Replacement Grinder
Assembly w/ Manual Run)
152554
RUN
O.L.
MOTOR
(3)
BLUE
RED
GREEN
START
(1)
(2)
YELLOW
BLUE
RED
CAPACITOR
(WHITE)
(BLACK)
WHITE
BLACK
RED
YELLOW
BLUE
ORANGE
R
RELAY
4
6
0
1
R
2
6
4
5
GE RELAY
(BROWN)
1)
NOTES:
INSULATORS REQUIRED ON GE RELAY TERMINALS 2 & 5;
OMRON RELAY TERMINALS 1 & 4.
FIGURE 3C Models RWD7020,
RWD7021 and RWH7021 Wiring
Diagram (6932 Replacement
Grinder Assembly W/ Integral
Pump And Alarm Floats W/ Manual
Run)
153381
RUN
O.L.
MOTOR
(3)
BLUE
RED
START
(1)
(2)
YELLOW
(WHITE)
(BLACK)
(BROWN)
SWITCH
PUMP
SWITCH
ALARM
R
4
6
0
1
R
2
6
4
5
GE RELAY
BLUE
RED
CAPACITOR
WHITE
BLA
CK
RED
RELAY
YELLOW
BLUE
GREEN
ORANGE
BLUE
WHITE
BLA
CK
BLA
CK
WHITE
BLUE
RED
BLA
CK
WHITE
1)
NOTES:
INSULATORS REQUIRED ON GE RELAY TERMINALS 2 & 5;
OMRON RELAY TERMINALS 1 & 4.
