Liberty Pumps Pro370 Series User manual

IMPORTANT: All Liberty Pumps products are supplied with their own
separate Installation/Operation/Maintenance manuals. Ensure receipt of
these manuals, and that they are read and understood prior to installation.
For questions, call Liberty Pumps customer service at 1-800-543-2550.
Installer: Manual must remain with owner or
system operator/maintainer.
Record information from system nameplate:
System:
Keep this manual handy for future reference.
For replacement manual, visit LibertyPumps.com,
or contact Liberty Pumps at 1-800-543-2550.
Retain dated sales receipt for warranty.
Model(s):
7000 Apple Tree Avenue
Bergen, NY 14416
ph: 1-800-543-2550
fax: [phone]
www.LibertyPumps.com
Serial(s):
Mfg Date:
Install Date:
Installation Manual 7225000K
Copyright © Liberty Pumps, Inc. 2023 All rights reserved.
Simplex Sewage/Grinder Systems
Models
Pro370-Series
Sewage System Pro380-Series Sewage System
ProVore®380-Series
Grinder System
Pro380-SD-Series
Sewage System
ProVore®380-SD-
Series Grinder System
700-Series
Sewage System
ProVore®700-Series
Grinder System
Vertical Discharge
21”D x 30”H
41 Gallon System
Vertical Discharge
24”D x 24”H
41 Gallon System
Side Discharge
24”D x 24”H
41 Gallon System
Vertical Discharge
24”D x 36”H
70 Gallon System
Indoor and Outdoor*
Installation Indoor and Outdoor* Installation Indoor and Outdoor Installation Indoor Installation Only
* with optional Access Riser

2 | EN Copyright © Liberty Pumps, Inc. 2023 All rights reserved. 7225000K
Contents
Safety Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 | EN
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 | EN
Covers & Basins. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 | EN
In-Ground Basin Installation . . . . . . . . . . . . . . . . . . . . 6 | EN
Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 | EN
Access Cover and Float Switch Control. . . . . . . . . . . . 8 | EN
Supplemental Installation Instructions. . . . . . . . . . . . 9 | EN
Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 | EN
Maintenance and Troubleshooting . . . . . . . . . . . . . . 10 | EN
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 | EN
Safety Guidelines
Safety Precautions
Accidental contact with electrically live parts, items, fluid, or
water can cause serious injury or death.
Always disconnect pump(s) from power source(s) before
handling or making any adjustments to either the pump(s),
the pump system, or the control panel.
All installation and maintenance of pumps, controls,
protection devices, and general wiring shall be done by
qualified personnel.
All electrical and safety practices shall be in accordance with
the National Electrical Code®, the Occupational Safety and
Health Administration, or applicable local codes and
ordinances.
Do not remove cord and strain relief, and do not connect
conduit to pump.
Pump shall be properly grounded using its supplied
grounding conductor. Do not bypass grounding wires or
remove ground prong from attachment plugs. Failure to
properly ground the pump system can cause all metal
portions of the pump and its surroundings to become
energized.
Do not handle or unplug the pump with wet hands, when
standing on damp surface, or in water unless wearing
Personal Protective Equipment.
Always wear dielectric rubber boots and other applicable
Personal Protective Equipment (PPE) when water is on the
floor and an energized pump system must be serviced, as
submerged electrical connections can energize the water. Do
not enter the water if the water level is higher than the PPE
protection or if the PPE is not watertight.
Do not lift or carry a pump or a float assembly by its power
cord. This will damage the power cord, and could expose the
electrically live wires inside the power cord.
The electrical power supply shall be located within the length
limitations of the pump power cord, and for below grade
installations it shall be at least 4 ft (1.22 m) above floor level.
Do not use this product in applications where human contact
with the pumped fluid is common (such as swimming pools,
fountains, marine areas, etc.).
Protect the power and control cords from the environment.
Unprotectedpowerandcontrol(switch)cords can allow water
to wick through ends into pump or switch housings, causing
surroundings to become energized.
Single-phase 208/230V pumps shall only be operated without
the float switch by using the circuit breaker or panel
disconnect.
Some products may have internal capacitors that could cause
shock. Avoid contact with plug ends after removing from
energy source.
This safety alert symbol is used in the manual
and on the pump to alert of potential risk for
serious injury or death.
This safety alert symbol identifies risk of
electric shock. It is accompanied with an
instructionintended tominimize potentialrisk
of electric shock.
This safety alert symbol identifies risk of fire.
Itisaccompaniedwithaninstructionintended
to minimize potential risk of fire.
This safety alert symbol identifies risk of
serious injury or death. It is accompanied
with an instruction intended to minimize
potential risk of injury or death.
Warns of hazards which if not avoided will
result in serious injury or death.
Warns of hazards which if not avoided could
result in serious injury or death.
Warns of hazards which if not avoided could
result in minor or moderate injury.
Signals an important instruction related to the
pump. Failure to follow these instructions
could result in pump failure or property
damage.
Read every supplied manual before using
pumpsystem.Followallthesafetyinstructions
inmanual(s) andon thepump. Failuretodoso
could result in serious injury or death.
RISK OF ELECTRIC SHOCK

7225000K Copyright © Liberty Pumps, Inc. 2023 All rights reserved. 3 | EN
These pumps are not to be installed in locations classified as
hazardous in accordance with the National Electric Code®,
ANSI/NFPA 70.
This product requires a separate, properly fused and
grounded branch circuit, sized for the voltage and amperage
requirements of the pump, as noted on the nameplate.
Overloaded branch circuit wires will get very hot and can
catch on fire. When used, electrical outlets shall be simplex of
the appropriate rating.
Do not use an extension cord to power the product. Extension
cords can overload both the product and extension cord
supply wires. Overloaded wires will get very hot and can catch
on fire.
Sewage and effluent systems produce and may contain
flammable and explosive gases. Prevent introduction of
foreign objects into basin as sparks could ignite these gases.
Exercise caution using tools and do not use electronic devices
or have live, exposed electrical circuits in or around basins,
open covers and vents.
Do not use this product with or near flammable or explosive
fluids such as gasoline, fuel oil, kerosene, etc. If rotating
elements inside pump strike any foreign object, sparks may
occur. Sparks could ignite flammable liquids.
Energizing the control panel or breaker for the first time is
potentially dangerous. Licensed electrical personnel should
be present when the panel or breaker is energized for the first
time. If faults caused by damage or poor installation practices
have not been detected, serious damage, injury or death can
result when power is applied.
Do not modify the pump/pump system in any way.
Modifications may affect seals, change the electrical loading
of the pump, or damage the pump and its components.
All pump/pump system installations shall be in compliance
with all applicable Federal, State, and Local codes and
ordinances.
Do not allow children to play with the pump system.
Do not allow any person who is unqualified to have contact
with this pump system. Any person who is unaware of the
dangers of this pump system, or has not read this manual, can
easily be injured by the pump system.
In 208/230V installations, one side of the line going to the
pump is always “hot”, whether the float switch is on or off. To
avoid hazards, install a double pole disconnect near the pump
installation.
Vent basin in accordance with local code. Proper venting of
sewer and effluent gases alleviates poisonous gas buildup
and reduces the risk of explosion and fire from these
flammable gases.
Wear adequate Personal Protective Equipment when working
on pumps or piping that have been exposed to wastewater.
Sump and sewage pumps often handle materials that can
transmit illness or disease upon contact with skin and other
tissues.
Keep clear of suction and discharge openings. To prevent
injury, never insert fingers into pump while it is connected to
a power source.
Do not use this product with flammable, explosive, or
corrosive fluids. Do not use in a flammable and/or explosive
atmosphere as serious injury or death could result.
Do not remove any tags or labels from the pump or its cord.
A grinder pump contains metal parts that rotate at high
speeds. Be careful around pump base while power is
connected. Make sure that the pump is either in the tank or
clear from people and wires when in operation.
This product contains chemicals known to the State of
California to cause cancer and birth defects or other
reproductive harm. www.p65warnings.ca.gov.
This pump has been evaluated for use with water only,
however use with human waste and toilet paper is permitted.
Do not use pumps with fluid over 140°F (60°C). Operating the
pump in fluid above this temperature can overheat the pump,
resulting in pump failure.
Do not use pump system with mud, sand, cement,
hydrocarbons, grease, or chemicals. Pump and system
components can be damaged from these items causing
product malfunction or failure. Additionally, flooding can
occur if these items jam the impeller or piping.
Do not introduce any consumer item that is not toilet paper
into a non-grinder (dewatering, effluent, sewage) pump/
pump system. This includes, but is not limited to the
following:feminineproducts, wipes, towels, towelettes, dental
floss, swabs, pads, etc. Items such as these put the pump
under undo strain and can result in pump/pump system
failure. Additionally, it creates conditions for discharge line
blockage.
Submersible Pump—do not run dry.
The Uniform Plumbing Code®states that sewage systems
shall have an audio and visual alarm that signals a
malfunction of the system, to reduce the potential for
property damage.
Do not exert heavy pressure or run heavy equipment on the
backfill material as this could cause the tank to collapse.
700-Series systems are not suitable for outdoor applications.
Pro370 and vertical discharge Pro380 and ProVore 380-Series
systems require an Access Riser for outdoor use. Consult
Liberty Pumps for ordering information.
Unless specifically noted, covers are not traffic rated.
RISK OF FIRE
RISK OF SERIOUS INJURY OR DEATH

4 | EN Copyright © Liberty Pumps, Inc. 2023 All rights reserved. 7225000K
Introduction
Before installation, read the following instructions carefully. Each
pump is individually factory tested to ensure proper performance.
Closely following these instructions will eliminate potential
operating problems, assuring years of trouble-free service.
ProVore grinder systems (including ProVore 700-Series) easily
handle solids and sewage waste found in typical residential
applications. Their unique cutter system grinds difficult wastes
and then pumps it through a 1-1/2” or 2” discharge line. The
ProVore-Series system is supplied with a 2” discharge outlet. Do
not increase this pipe size above 2” as adequate flow rates may
not be achieved for proper operation. Discharge sizes may be
reduced to 1-1/4”. Consult Liberty Pumps for proper pipe and
system sizing.
Pro-Series and ProVore-Series vertical discharge systems come
with an integral control system with alarm and QuickTree®float
system. Pump and alarm floats are preset on the QuickTree
system at proper operating levels. The QuickTree system is
located under a separate access cover for ease of maintenance
and service. Floats for both pump activation and alarm are
mounted on a stainless steel tree (rod), separate from the pump.
There is no need to disconnect plumbing or remove the pump to
inspect service or replace floats. QuickTree floats are preset at the
factory for optimum operating levels and should not be adjusted.
Systems also feature a clear disposable construction cover
designed to protect the system during rough-in and masonry
work. The protective cover should remain in place until finish
plumbing; however, it can be removed and reinstalled if required.
The cover is snapped into the threaded ports of the discharge and
vent. To remove the clear cover, simply pull upward, disengaging
it from the discharge and vent holes.
Pro-Series and ProVore-Series side discharge systems feature a
2” side discharge and 4” no-hub type inlet. Systems come
pre-assembled from the factory with an automatic pump.
700-Series systems (non-grinder types) feature a heavy-duty
basin with 4” inlet hub pre-assembled to basin. Systems come
pre-assembled from the factory with pump and automatic
controls pre-mounted, requiring no system assembly at job site.
The cover is equipped with a 2” or 3” discharge and 2” or 3” vent
flange.
Was the current system sized by a professional? Minimum fluid
flows are required in sewage applications. Consult Liberty Pumps
for proper pump sizing prior to installation.
Covers & Basins
370-Series
Vent
Inlet
Discharge
Nameplate
(model and serial
number)
Alarm
(optional, shipped
on top of system)
20.25” [51.4 cm]
3”
[7.6 cm]
23” [58.4 cm]
30”
[76.2 cm]
10”
[25.4 cm]
21.5” [54.6 cm]

7225000K Copyright © Liberty Pumps, Inc. 2023 All rights reserved. 5 | EN
380-Series Vertical Discharge 380-Series Side Discharge
Inlet
Vent
Discharge
Inspection/
Access cover
Nameplate
(model and
serial number)
Alarm
(optional,
shipped on top
of system)
24.38” [61.9 cm]
3.25”
[7.6 cm]
23.5” [59.7 cm]
25” [63.5 cm]
9.25”
[23.5 cm]
Inlet
2” PVC
Hub
Cord Exit
Discharge
Nameplate
(model and
serial number)
24.38” [61.9 cm]
7.88”
[20 cm]
4”
[10.2 cm]
3.25”
[7.6 cm]
23.5” [59.7 cm]
25” [63.5 cm]
9.25”
[23.5 cm]
2” PVC
discharge
Cord exit
2” PVC hub

6 | EN Copyright © Liberty Pumps, Inc. 2023 All rights reserved. 7225000K
700-Series
In-Ground Basin Installation
700-Series systems are not suitable for outdoor applications.
Pro370 and vertical discharge systems Pro380 and ProVore
380-Series systems require an Access Riser for outdoor use.
Consult Liberty Pumps for ordering information.
Unless specifically noted, covers are not traffic rated.
Do not exert heavy pressure or run heavy equipment on the
backfill material as this could cause the tank to collapse.
ProVore and Pro-Series basins can be installed in both indoor and
outdoor applications. The 700-Series basins can only be installed
indoors.
Excavation
Excavate the hole as small as possible, with a minimum
recommended 8” diametrical clearance around the tank. Never
place the basin directly in contact with rocks or other sharp
objects. Place only fine, 1/8” to 3/4” pea gravel or 1/8” to 1/2”
washed, crushed stone as bedding between the basin and the
hole walls. Do not use sand or native soil as backfill. Properly
compact underneath the basin to provide a solid, level base that
can support the weight of the filled basin. It is recommended that
the top lip of the basin be level with the finished floor.
Initial Backfill
Use only fine, 1/8” to 3/4” pea gravel or 1/8” to 1/2” washed,
crushed stone around the bottom of the basin to hold it in place.
Do not use sand or native soil as backfill. Make the inlet
connection as required for particular basin.
Inlet Connection
Pro-Series basins have a 4” inlet molded to the side of the tank.
This inlet is sized to accept a 4” no-hub type coupling. Connect
the gravity drainage line from the fixtures to this hub.
Final Backfill
Large rocks, clods, and foreign objects must be kept out of the
backfill material. Only fine, 1/4” to 3/4” pea gravel, or 1/8” to 1/2”
washed, crushed stone is recommended. Do not use sand or
native soil as backfill. Mound the backfill slightly and allow for
natural settling. Provide access to the basin cover for maintenance
and service.
Discharge
Vent
Cord
entry
Access
cover
Nameplate
41.8”
[106.3 cm]
Ø28.7” [73 cm]
36.6”
[93 cm]
23.1” [58.7 cm]
25.5”
[64.8 cm]
11.1”
[28.2 cm]
4”
FIBERGLASS
INLET HUB

7225000K Copyright © Liberty Pumps, Inc. 2023 All rights reserved. 7 | EN
Installation
All installation and maintenance of pumps, controls,
protection devices, and general wiring shall be done by
qualified personnel.
All electrical and safety practices shall be in accordance with
the National Electrical Code®, the Occupational Safety and
Health Administration, or applicable local codes and
ordinances.
700-Series systems are not suitable for outdoor applications.
Pro370 and vertical discharge systems Pro380 and ProVore
380-Series systems require an Access Riser for outdoor use.
Consult Liberty Pumps for ordering information.
Unless specifically noted, covers are not traffic rated.
Do not increase 702/PRG system discharge pipe size above 2”
as adequate flow rates may not be achieved for proper
operation. Contact Liberty Pumps with questions regarding
proper pipe sizes and flow rates.
Electrical Connections
With mains power disconnected, complete pump and control
wiring connections per manufacturer’s wiring diagrams included
with the control panel as applicable. Check all wires for
unintentional grounds after the connections are made.
Discharge
ProVore grinder systems including ProVore 700-Series:
discharge size can be reduced to 1-1/4”.
Pro-Series and 700-Series non-grinder systems: discharge
size must not be smaller than 2”.
Using an adapter, connect the discharge pipe to the threaded 2”
or 3” port provided on the cover (or the 2” PVC nipple used on
side discharge models).
In some applications, it may be necessary to increase the pipe size
to reduce friction losses. Contact Liberty Pumps with questions
regarding proper pipe sizes and flow rates.
Install the remaining discharge line. In vertical discharge
applications, a union should be installed just above the cover to
facilitate pump removal if necessary (side discharge applications
are equipped with an in-basin union).
For both vertical and side discharge systems, a check valve is
required after the union to prevent the backflow of liquid after
each pumping cycle. A gate or ball valve should follow the check
valve to allow periodic cleaning of the check valve or removal of
the pump. The remainder of the discharge line should be as short
as possible with a minimum number of turns, to minimize friction
head loss. Larger pipe sizes may be required to eliminate friction
head loss over long runs. Contact Liberty Pumps or other qualified
person if there are questions regarding proper pipe size and flow
rates.
Figure 1 shows a typical installation. Variations may apply to
actual installation. .
Figure 1. Typical Installation (Pro380-Series shown)
Vent
For both side and vertical
discharge systems, the vent
size must be in accordance
with applicable codes, but
not less than the discharge
size.
On vertical discharge
models, a threaded 2” or 3”
connection is provided on
top of the cover. The vent
must be piped to the
existing building vent, or
extended outside on its own
standpipe.
On side discharge models,
venting is accomplished
through the inlet. See
example figure for
Pro380-SD venting example
through the inlet pipe as an
alternative solution.
Pro-Series systems shipped with steel pipe option have a rubber
grommet seal on the discharge instead of female NPT
connections.
Inlet
Connect the inlet line to the inlet hub per engineer’s
specifications. 700-Series basins use a hub with a 4” seal for inlet
connection.
RISK OF ELECTRIC SHOCK
Alarm
(optional) Vent
Union
Check
Valve
Ball
Valve
Discharge
Use No-hub Style
Connector 4" Inlet Pipe
Pro380-SD
System
Discharge
Vent

8 | EN Copyright © Liberty Pumps, Inc. 2023 All rights reserved. 7225000K
Piggyback Switch Operation
Single-phase 208/230V pumps shall only be operated without
the float switch by using the circuit breaker or panel
disconnect.
Some products may have internal capacitors that could cause
shock. Avoid contact with plug ends after removing from
energy source.
All Pro370 and vertical discharge Pro380-Series models come
factory-equipped with the float switch mounted on the QuickTree
assembly. These models come with two cords—one to the float
switch and the other to the pump motor. The switch cord has a
series (piggyback) plug enabling the pump (motor) cord to be
plugged into the back of it. The purpose of this design is to allow
manual operation of the pump.
For automatic operation, the two cords should be interconnected
and plugged into a separately fused, grounded outlet of proper
amp capacity for the selected pump model. Both cords are
equipped with 3-prong plugs and must be plugged into a
properly grounded 3-wire receptacle. Do not remove the ground
prongs.
For manual operation, or in the event of switch failure, the pump
cord can be separated and plugged into the electrical outlet
directly, bypassing the switch and using the circuit breaker or
panel disconnect to operate the pump.
Automatic Pump Direct Wiring
In 208/230V installations, one side of the line going to the
pump is always “hot”, whether the float switch is on or off. To
avoid hazards, install a double pole disconnect near the pump
installation.
Figure 2. Direct Wiring of 115V or 208/230V, 1-Phase, Automatic
If a 1-phase pump will be wired directly into a junction box, and it
is necessary to remove the plug, a certified electrician shall
complete the wiring in accordance with the National Electric Code
and applicable local codes. A disconnecting means for the pump
shall be located in sight from the pump/basin location. See
Figure 2 for direct wire installation of 1-phase, automatic pumps.
Access Cover and Float Switch Control
370/380-Series Vertical Discharge
Liberty Pumps Pro370 systems and vertical discharge 380-Series
systems feature QuickTree technology. Floats for both pump
activation and alarm (if equipped) are mounted on the QuickTree,
separate from the pump.
The QuickTree float system uses a stainless steel mounting rod
(tree) and specially designed cord clamping brackets to affix the
pump float and (optional) alarm float in the system. All floats are
preset at the factory at optimum operating levels and should
not be adjusted. Field adjusting floats may cause improper
activation or turn OFF of the pump and optional alarm.
QuickTree removal and float inspection: The QuickTree system is
located under the separate access cover to help ease inspection,
service, and replacement of a float. To inspect the float(s), simply
unbolt the access cover and lift out the QuickTree assembly from
its holder. There is no need to disconnect plumbing or remove the
pump. Vertical discharge systems feature a manual pump (with no
switch attached directly to the pump). Operation of the pump is
accomplished by the QuickTree system.
Re-inserting the QuickTree: After service or inspection of the
floats, re-insert the QuickTree into its holder. It is important that
cords from the pump motor, float switch, and optional alarm float
are properly sealed in the specially designed rubber sealing
channels under the access cover. Proper sealing is required to
keep sewer gas from leaking from the system. Place the cords
securely in the rubber channels as shown in Figure 3 [left], being
careful to remove excessive cord “slack” from inside the system.
IMPORTANT: Three cord channels are provided. For systems
without the alarm option, only two channels are used and the
third must be “plugged” with an attached rubber plug seal. See
Figure 3 [right]. If the alarm cord is present, all three channels will
be used. All rubber cover gaskets are permanently attached and
do not require replacement.
Figure 3. Proper Cord Sealing Behind QuickTree Rod
RISK OF ELECTRIC SHOCK
RISK OF SERIOUS INJURY OR DEATH
Temporary Manual
Operation
NormalNO!
Ground
Black
Junction Box
Power
Supply
Float
Switch Pump
Green
Black
White
Green
Black
WhiteWhite
rubber plug seal

7225000K Copyright © Liberty Pumps, Inc. 2023 All rights reserved. 9 | EN
QuickTree Settings
When servicing the QuickTree, place the switch cord into the
trough or channel and thenslip the stainless steel rod through the
clamp. Tighten the screw with a Phillips screwdriver, being careful
not to over-tighten. Flats have been stamped on the rod to
designate float position, and the screw should be tightened onto
the flat. Tether length is the amount of cord between the clamp
and float. Example QuickTree settings shown.
380-Series Side Discharge
The 380-Series Side Discharge cover provides access to the float
and alarm cord entry/exit seals. QuickTree is not available on
380-Series Side Discharge systems. Side discharge 380-Series
systems are equipped with an automatic pump that has the
control float attached to the pump while the alarm float (if
equipped) is on the discharge pipe.
700-Series
The 700-Series cover provides access to the float and alarm cord
entry/exit seals. QuickTree is not available on 700-Series systems.
700-Series systems are equipped with an automatic pump that
has the control float attached to the pump while the alarm float (if
equipped) is on the discharge pipe.
Supplemental Installation Instructions
Pro370XL/Pro380XL-Series 10' Stack Test Basins
XL-Series sewage ejector basins are designed to withstand the 10'
stack test required by some municipalities. Proper installation of
the specified cover flange is essential to ensure that the test is
met. Strict adherence to these instructions is required. Under no
circumstances should the cover be installed in a manner
inconsistent with these instructions.
Types of Systems
XL-Series basins are available as fully assembled systems
complete with pump and discharge piping, as basin and cover
assembly kits with no pump or plumbing, and as basins only.
Follow the instructions below, as applicable, to correspond to the
specific type of system.
Basin Installation
For all systems, refer to the primary instructions supplied with this
ejector system or basin for excavating the pit, plumbing
connections, and backfilling.
If the top of the basin is below grade, an Access Riser (model
ARC18) is required. The maximum burial depth is 18” with respect
to the top of the basin. 370-Series and top discharge 380-Series
systems require an Access Riser for outdoor use. Consult Liberty
Pumps at 1-800-543-2550 or a local distributor for more
information on ARC Series Access Risers.
Installing the Pump in XL-Series Basin or XL Basin
and Cover Assembly Kit
1. Liberty Pumps XL-Series basins, purchased separately, will
require the appropriate 16-bolt Pro-Series cover assembly to
make an effectively sealed ejector system. Contact Liberty
Pumps customer service for the proper cover for the
application.
2. Size the length of the discharge piping to reach from the
discharge of the pump to be within the discharge pipe socket
with integral lip seal on the underside of the Pro-Series cover.
Liberty Pumps sewage pumps will use threaded-one-end
(TOE) nipples of 23-3/4” length for Pro370XL-Series basins, or
17-1/2” long for Pro380XL-Series basins. Install the pipe into
the threaded discharge of the pump.
3. Lower the pump into the basin, fitting the pump legs into the
torque stops.
4. Insert power cord for the pump—and the piggyback switch
cord, if so equipped—through the underside of the
inspection cover hole and position cover over pipe nipple
while aligning the bolt holes. Sealant (such as silicone) can be
applied on both sides of the rubber gasket surface to ensure
proper sealing. Use sixteen 1/4-20 UNC bolts and washers to
secure cover to the basin. Tighten bolts to 40 in-lbs. Do not
over-tighten bolts. The soft, integral gasket will conform to
the top of the tank. The bolts may be re-torqued up to
60 in-lbs to seal any leaks that may occur during a 10' stack
test.
Table 1. Tether Length (Switch Position to Clamp)
Rod
Position
Pro370-Series Pro380-Series
Alarm Control Alarm Control
13-1/2”
23-1/2”
33”
40 3-1/2”
P370-SERIES SHOWN
Float positions 1, 2, 3, and 4 are
identified by flats stamped onto the
stainless rod.
1 is highest; 4 is lowest.
ALARM FLOAT
PUMP
CONTROL
FLOAT
TETHER LENGTH
1
2
4
3
(ON OPPOSITE
SIDE)
not to scale

10 | EN Copyright © Liberty Pumps, Inc. 2023 All rights reserved. 7225000K
5. Liberty Pumps recommends the use of manual type pumps
and the appropriate Liberty Pumps QuickTree Switch Kit for
mounting of pump control and alarm floats. Contact
customer service for ordering information. Install the
QuickTree Kit per instructions included. Liberty Pumps
automatic type pumps with piggyback float switches may also
be used. Lay the power cable and switch cable in the grooves
in the inspection cover recess as shown in the primary
instructions included with this system. Attach the inspection
cover to the main cover using supplied bolts and washers.
Sealant (such as silicone) can be applied on both sides of the
rubber gasket surface to ensure proper sealing. Tighten the
bolts furthest away from the power cord grooves first,
torquing to 40 in-lbs. Do not over-tighten bolts. The soft,
integral gasket will conform to the top of the cover and
power cords. The bolts may be re-torqued up to 60 in-lbs to
seal any leaks that may occur during a 10' stack test.
Operation
Refer to the Startup and Operation sections provided in the
supplied pump, control panel, alarm manuals as applicable.
Maintenance and Troubleshooting
Always disconnect pump(s) from power source(s) before
handling or making any adjustments to either the pump(s),
the pump system, or the control panel.
Refer to the Maintenance and Troubleshooting sections provided
in the supplied pump, control panel, alarm manuals as applicable.
For further questions, contact customer service at 1-800-543-2550
or [email protected].
Warranty
Liberty Pumps Wholesale Products Limited
Warranty
Liberty Pumps, Inc. warrants that Liberty Pumps wholesale
products are free from all factory defects in material and
workmanship for a period of three (3) years from the date of
purchase (excluding* batteries and “Commercial Series” models).
The date of purchase shall be determined by a dated sales receipt
noting the model and serial number of the pump. The dated sales
receipt must accompany the returned pump if the date of return is
more than three years from thedate of manufacture noted on the
pump nameplate.
The manufacturer's sole obligation under this Warranty shall be
limited to the repair or replacement of any parts found by the
manufacturer to be defective, provided the part or assembly is
returned freight prepaid to the manufacturer or its authorized
service center, and provided that none of the following
warranty-voiding characteristics are evident:
The manufacturer shall not be liable under this Warranty if the
product has not been properly installed, operated, or maintained
per manufacturer instructions; if it has been disassembled,
modified, abused, or tampered with; if the electrical cord has been
cut, damaged, or spliced; if the pump discharge has been reduced
in size; if the pump has been used in water temperatures above
the advertised rating; if the pump has been used in water
containing sand, lime, cement, gravel, or other abrasives; if the
product has been used to pump chemicals, grease, or
hydrocarbons; if a non-submersible motor has been subjected to
moisture; or if the label bearing the model and serial number has
been removed.
Liberty Pumps, Inc. shall not be liable for any loss, damage, or
expenses resulting from installation or use of its products, or for
indirect, incidental, and consequential damages, including costs of
removal, reinstallation or transportation.
There is no other express warranty. All implied warranties,
including those of merchantability and fitness for a particular
purpose, are limited to three years from the date of purchase.
This Warranty contains the exclusive remedy of the purchaser,
and, where permitted, liability for consequential or incidental
damages under any and all warranties are excluded.
*Liberty Pumps, Inc. warrants StormCell®batteries for 1 year from
date of purchase, and warrants that pumps of its Commercial
Series are free from all factory defects in material and
workmanship for a period of 18 months from the date of
installation or 24 months from the date of manufacture,
whichever occurs first, and provided that such products are used
in compliance with their intended applications as set forth in the
technical specifications and manuals.
Pro370XL and Pro380XL Series Basins IAPMO listed, # 4361
RISK OF ELECTRIC SHOCK