7386000M
Copyright © Liberty Pumps, Inc. 2020 All rights reserved.
7 | EN
Vent
The basin must be
completely sealed and
properly vented per local
health and plumbing code
requirements. The system is
designed to be vented
through the inlet to an
existing building vent stack.
In order to accomplish this,
there must be no traps
between the system inlet
and the nearest building
vent stack connection. If
this is not possible or
desirable per the
application, a vent flange or
grommet can be installed in
a hole cut into the cover.
Float Switches
Float switches are pre-mounted on a QuickTree®. For QuickTree
removal, loosen the cord nut, locking clamp, and pull the
QuickTree straight out of the basin.
The pump cycle is preset at the factory. The pump cycle can be
adjusted by loosening the cord grip and moving the ON/OFF float
up or down. Adjustments of more than 3" in either direction are
not recommended—call customer service if the pump cycle needs
to be adjusted beyond this recommended level. The preset pump
levels are provided in Table 1.
GR-Series Guide Rail System
The GR20 quick-disconnect assembly guide rail system provided
with the system is designed to allow easy installation and removal
of the pump. When installed correctly, it will seal and provide a
means to lift the pump without disconnecting any of the
discharge piping. Ensure installation is done as shown.
Operation, Maintenance and
Troubleshooting
Refer to supplied pump, alarm, and plugger box manuals. For
further questions, contact customer service at 800-543-2550 or
Table 1. Factory Set Float Switch Levels
System
OFF
ON
ALARM
2448
9-1/2”
16-1/2”
21”
3036
9-1/2”
16-1/2”
21”
3048
9-1/2”
16-1/2”
21”
SYSTEM
VENT
DISCHARGE
Ground Level
SEWAGE LINE
DISCHARGE
ALARM
ON/OFF
Guide Rail Base
Grommet Location
Operating Position
Disconnected Position
Grommet comes
greased and
installed
Rubber
sealing
grommet
