6
© Copyright 2017 Zoeller
®
Co. All rights reserved.
1. Review the drawing in Fig. 4 on page 5 and the actual system to become familiar
with the components in the packaged grinder pump system. Review where the unit
will be installed. Determine where the power feed, inlet pipe, and discharge pipe will
be located.
2. Remove the unit from packing. Prepackaged outdoor systems are preassembled at
the Zoeller Company and require a minimum of field assembly work. Float switches
are set and tethered for proper operation from the Factory. The alarm switch should
be located 5 cm (2”) above the pump “on” level.
3. Float switches are tied in place for shipping purposes on all model prepackaged
systems. Cut the cable tie around each float switch bulb or the unit will not operate
properly. Verify that where the float switches are set will work for your application.
Verifying that the float switches are set properly and will not hang up inside
the basin is the responsibility of the installing contractor.
4. Dig a hole for the basin. The hole should be at least 61 cm (24”) larger in diameter
than the basin diameter to provide 30 cm (12”) of backfill all around and deep enough
to provide either 30 cm (12”) of compacted backfill or 16 cm (6”) when a concrete pad
is required. Ensure the removable cover extends above the finished grade line and
the grade slopes away from the unit. Backfill and subbase should be 3 mm (1/8”) –
19 mm (3/4”) pea gravel or 3 mm (1/8”) – 13 mm (1/2”) crushed stone. (Reference
basin installation instructions included with unit)
5.
Note: Care must be taken when excavating in order to avoid underground
utilities and disturbance of existing structure foundations. The hole should
be located at least ten feet from adjacent structures. Additional distance may
be required to sufficiently locate the basin outside of the loading area of the
adjacent structures.
6. The location of the inlet fitting is determined by the depth of the inlet pipe. The inlet
fitting must be used with 10 cm (4”) pipe. It is best to install the inlet on the side of
the basin opposite the float switches. To install, use a 13 cm (5”) hole saw to drill
into the side of the basin at the correct elevation. Center the hub inner diameter
with the hole in the basin. Attach the hub to the side of the basin using the sealant
and hardware provided.
7. The bottom of the excavation can now be back filled and compacted. Set basin in
hole and connect the 10 cm (4”) inlet pipe to the inlet hub.
8. The discharge piping is connected to the 3 cm (1-1/4”) threaded fitting located in
the basin sidewall.
9. On basin depths of 182 cm (72”) and greater, the system’s disconnect assembly
is shipped loose and must be screwed into the discharge piping. Apply pipe dope
to threaded connection.
10. Connect pull rod to Pump assembly. Connect lift cable to top of pump. Lower the
pump into basin ensuring the discharge pipe bracket slides into the disconnect
fitting.
11. Pouring a concrete anchor around system can now be completed. Basin should
be filled with water when pouring concrete to minimize movement of the system.
Back fill around basin with specified media. Care should be used to avoid damaging
components or leaving voids when back filling. Refer to Basin installation reference
guide on more specific requirements.
12.
Note: The progressing cavity grinder basin is a sewage holding tank. Vent
connection should be installed in accordance with all national, state and local
plumbing codes.
13. Dig a trench for the electrical conduit. Trench should be located at least 45 cm (18”)
deep and follow all applicable NEC codes. Connect electrical wiring to Junction
box according to wiring instructions included in this manual and wiring diagram in
box. Use the included sealant when closing Junction box.
14. If used, a control panel is installed within sight of the system. Connect float switches
and pump cords according to the “Pump Wiring Instructions” found in this manual
and located inside the panel enclosure.
15. Remove any debris from the basin. Using clean water, check the system for proper
operation.
16. Seal and secure the lid using the proper bolts and sealant when using a lid without
a formed gasket.
17. Add water to the basin and test the system for leaks and proper pump operation.
18. Record system start up data for future reference.
Outdoor Prepackaged System Installation Instructions
This set of instructions is for factory prepackaged outdoor progressing cavity grinder systems only. If this is a field assembled outdoor system you can
use these instructions as a guideline.
GENERAL
Zoeller pumps are lubricated and tested at the factory prior to shipment and require
minimum pre-start-up maintenance.
Maximum operating temperature of pumped liquid for standard model pumps must not
exceed 54 °C (130 °F) for 60Hz units, 40 °C (104 °F) for 50Hz units.
These units are not designed to handle liquids other than sanitary sewage. If pump is
used to dewater areas with contaminated liquids with heavy or abrasive materials, the
warranty will be voided.
NAMEPLATE DATA
The nameplate, located on the top of the pump, indicates specific information about
the construction of the pump. The model number and date code information should be
recorded on the front page in the “Owner’s Information” section of this manual.
SHORT-TERM STORAGE
When not in use, the pump should be stored and the following is advised:
• Drain pump housing by laying pump horizontal with discharge down. Then stand pump
on legs.
• 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.
Operation
SK2533
6-5/8” (143 mm)
8-3/8”
(213 mm)
5-1/4”
(133 mm)
4-3/8”
(111 mm)
10-1/2”
(267 mm)
DIA.
22-3/8” (568 mm)
4” (103 mm)
FIG. 5
POSITIVE DISPLACEMENT
GRINDER PUMP
1-1/4" NPT
ANTI-SIPHON VALVE
DN32 (1-1/4")
DISCHARGE LINE
1-1/4" NPT CHECK VALVE
DISCONNECT
DN32 (1-1/4") SHUT OFF VALVE
(HOME OWNER)
(JWA)
CURB/VALVE
BOX
CHECK VALVE
SHUT OFF
VALVE
MAIN
OPTIONAL LOCATION 1-1/4"
NPT ANTI-SIPHON VALVE
FIG. 5A
SK2810