Installation Sheet

7
© Copyright 2017 Zoeller
®
Co. All rights reserved.
Indoor Prepackaged System Installation Instructions
This set of instructions is for factory prepackaged indoor systems only. If your system is a eld assembled
indoor system, use these instructions as a guideline. If your system is an outdoor system then go to the next section in this
manual that covers outdoor systems.
1. Indoor grinder pump systems are for installing at grade
in an indoor application only. If you will be installing this
system outside next to the residence then you will need an
outdoor system. DO NOT INSTALL THE INDOOR SYSTEM
OUTDOORS.
2. Review the drawing in Fig. 2 on page 6 and the actual system
to become familiar with the components in the grinder pump
system. Review where the unit will be installed. Determine
where the power feed, inlet pipe, discharge pipe and vent
will be located.
3. Remove the unit from the packing. Indoor prepackaged sys-
tems are preassembled at the Zoeller Company and require
a minimum of eld assembly work. All work inside the basin
can be performed via the inspection port. There should be
no reason to remove the cover from the basin. Pump and
oat switches are already set inside the basin.
4. Remove the inspection plate from the cover. All oats are set
and tethered for proper operation from the factory. Verify that
where the oat switches are set will work for your application.
Verifying that the oat switches are set properly and will not
hang up inside the basin is the responsibility of the install-
ing contractor. Float switches are tied in place for shipping
purposes. Cut the cable tie around each oat switch bulb or
the unit will not operate properly.
5. Dig a hole for the basin. The basin should be located in
a very low trafc area within 15’ of the power disconnect.
The hole should be at least 8” larger in diameter than the
basin in order to leave 4” of backll all the way around
the perimeter. A minimum of 4” of compacted subbase
is also required. Backll and subbase should be 1/8” to
3/4” pea gravel or 1/8” to 1/2” crushed stone. Also reference
the basin installation instructions included with the unit.
6. The 4” inlet hub should be located between the top lip of
the basin and the alarm oat “on” level with a minimum dis-
tance of 10 inches between the oor of the basin and hub.
Determine the location of the inlet hub based upon your inlet
pipe arrangement. The inlet hub must be used with 4” pipe.
It is best to install the inlet on the side of the basin opposite
the oat switches. To install, use a 4” 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. Set the basin in the hole and connect the 4” inlet pipe to the
inlet hub using the rubber insert. If using a cast iron hub,
the 4” inlet pipe will need to be caulked or gasketed to the
hub. Backll around the basin with specied media. Care
should be taken not to damage components or leave voids
when backlling. Finish grade of oor should be poured in
place around the top 6” of the basin assembly.
8. Connect the discharge pipe, valves and vent according to
all applicable National, State and Local plumbing codes.
9. Mount the alarm panel on the wall above the system. Connect
the alarm oat switch and pump power cord.
10. Clean any debris out of the basin. Fill the basin with water
and check the system for proper operation.
11. Record system start-up data for future reference.
12. Seal and secure the inspection plate to the lid using the proper
bolts and sealant. Pouring concrete around the system can
now be completed.