Specification Sheet
© Copyright 2017 Zoeller
®
Co. All rights reserved.
DUPLEX ELECTRICAL ALTERNATING SYSTEM
All electrical systems must be installed by a qualied licensed electrician and according to the National Electrical
Code. (See section 430-71 through 430-113 plus any others that apply)
Refer to FM0712 for correct selection of Electrical Alternator.
SK289
PUMP POWER SUPPLY
NOTE: ALARM - CONTROL
CIRCUIT SHOULD BE
SEPARATE FROM
PUMP POWER
2" OR 3" DISCHARGE PIPE
FLOOR FLANGE
ZOELLER FIBERGLASS
OR POLYETHYLENE
BASIN
ZOELLER FLOAT SWITCH
ZOELLER SEWAGE PUMP
ELECTRICAL ALTERNATOR
CONTROL PANEL
INDICATOR LAMPS (INSIDE ENCLOSURE)
TOGGLE SWITCHES (INSIDE ENCLOSURE)
ZOELLER UNICHCEK
CHECK VALVE (2" OR 3")
4 FLOAT SYSTEM
ALARM BELL "ON"
BOTH PUMPS ALREADY
ACTIVATED SET ABOVE OVERRIDE
4" HUB INLET
"ALARM-OVERRIDE LEVEL SET
ABOVE "ON" FLOAT AND
BELOW INLET BOTH PUMPS
"ON" ALARM BELL "ON"
3 FLOAT SYSTEM
"ON" LEVEL PUMPS ALTERNATE
OPERATION EACH CYCLE MAXIMIZE
BASED ON DEPTH AND VOLUME
MINIMUM "OFF" LEVEL
DISCONNECT
AND BELOW INLET
OF BASIN
CONTROL & ALARM
POWER SUPPLY
(SINGLE PHASE ONLY)
(SINGLE PHASE ONLY)
5"
ALARM LIGHT
NOTE: THREE PHASE PANELS HAVE A
TRANSFOMER WITH SECONDARY FUSING.
CONTROL PANEL USED WITH THREE PHASE PUMPS
*Three phase panel has multi-tap transformer with secondary fusing.
Sequence of Operation for Duplex Panel
1. Operation can begin after the following:
- Correct voltage is supplied to Panel
- Panel is properly grounded
- Pumps are connected correctly to Panel
- Panel Circuit Breakers are closed
- Floats are installed properly
- Overload Protection is adjusted to Pump nameplate amps
- Pump HOA Switches are set to “Auto”
- Control On/Off Switch is set to “On”
2. When the “Stop” and “Lead” oats are closed Pump 1 will energize
and the Pump 1 Pump Run Light will illuminate. Pump 1 will remain
operational until the “Stop” oat opens.
3. The next time the “Stop” and “Lead” oats are closed the Alternating
Circuit will energize Pump 2 and the Pump 2 Pump Run Light will
illuminate. Pump 2 will remain operational until the “Stop” oat opens.
This cycle will repeat each time the uid level rises and falls.
4. If the uid level continues to rise after the rst pump has been ener-
gized the “Lag” oat will close. When the “Lag” oat has closed the
second Pump will Energize. Both Pumps will remain operational until
the “Stop” oat opens.
5. In a three oat system when the “Lag” oat is closed the following will
also occur:
- The External High Water Light will illuminate
- The Audible High Water Horn will sound
- The Auxiliary Dry Contacts will close
6. In a four oat system, the alarm oat should be the third oat causing
an alarm to sound when the lead pump fails to operate or the rate of
in ow into the basin exceeds the capacity of one pump. When the
alarm oat is closed the following will occur.
- The External High Water Light will illuminate
- The Audible High Water Alarm will sound
- The Auxiliary Dry Contacts will close
As the liquid level continues to rise the fourth oat will close, energizing
the lag pump. The lag pump and the lead pump will remain energized
until the "Stop" oat opens.
NOTE: In Duplex systems where it is considered normal for two pumps
to operate in tandem during peak ow conditions, the third and fourth
oat may be reversed.
7. The Audible High Water Horn can be silenced by pressing the Alarm
Silence Button. When the “Alarm” oat opens the External High
Water Light, Audible High Water Horn and Dry Auxiliary Contacts will
be reset.
NEMA 4X ENCLOSURE (Float Switches not included)
Order
No.
Dimensions
H x W x D
Volts* Amp Range
10-1102
10-1104
10-1106
10-1108
10-1110
10-1111
10-1112
10-1114
10-1115
10-1183
14" x 12" x 6"
14" x 12" x 6"
14" x 12" x 6"
14" x 12" x 6"
14" x 12" x 6"
14" x 12" x 6"
14" x 12" x 6"
14" x 12" x 6"
14" x 12" x 6"
14" x 12" x 6"
200/230/460
200/230/460
200/230/460
200/230/460
200/230/460
200/230/460
200/230/460
200/230/460
200/230/460
200-208
1.0 - 1.6
1.6 - 2.5
2.5 - 4.0
4.0 - 6.3
6.0 - 10.0
9.0 - 14.0
13.0 - 18.0
17.0 - 23.0
20.0 - 25.0
23.0 - 32.0
10-1154
10-1156
10-1158
14" x 12" x 6"
14" x 12" x 6"
14" x 12" x 6"
575
575
575
1.6 - 2.5
2.5 - 4.0
4.0 - 6.3