4
The following instructions
dene the recommended
procedure for installing the
Model WH/WR48 grinder pump
station.
This is a sewage handling
pump and must be vented in
accordance with local plumbing
codes. This pump is not to be
installed in locations classied
as hazardous in accordance
with National Electric Code,
ANSI / NFPA 70. All piping and
electrical systems must be in
compliance with applicable
local and state codes.
1. REMOVE PACKING
MATERIAL: The User
Instructions must be given to
the owner. Hardware supplied
with the unit, if any, will be used
at installation.
2. TANK INSTALLATION:
The tank is typically supplied
with a standard grommet for
connecting the 4” DWV (4.50”
outside dia.) incoming sewer
drain. Other inlet types and
sizes are optional. CAUTION:
4” DR-35 pipe has a smaller
diameter and won’t create
a watertight joint with the
standard 4” SCH 40 inlet
grommet. Conrm that you
have the correct inlet before
continuing. Do not drop, roll,
or lay tank on its side. This
will damage the unit and void
the warranty.
Excavate a hole to a depth so
that the station cover extends
1” to 2” above the nished
grade line. The nished
grade must slope away from
the station cover to prevent
surface water from entering
the station. The diameter of the
hole shall be large enough to
allow for the concrete ballast
anchor. The size, shape and
shoring requirements of the
excavation will be based on
240 VOLT WIRING – SIMPLEX
Figure 2b
120 VOLT WIRING – SIMPLEX
Figure 2a
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