Liberty Pumps HT40 Series User manual

InstallationManual 7387000D
IMPORTANT:
Prior to installation, record Model, Serial Number, and
Code Number from pump nameplate for future reference.
MODEL ________________________
SERIAL ______________________
CODE ______________________
INSTALLATION
DATE _______________________
7000 Apple Tree Avenue
Bergen, NY 14416
Phone: [phone]
Fax: [phone]
www.libertypumps.com
Contents
1.) General Information/Safety
Guidelines
2.) Installation
3.) Maintenance and Troubleshooting
HT40-Series High Temp Submersible Pumps
Models
HT41M 4/10 HP 115V Manual
HT41A 4/10 HP 115V Automatic
*Do not throw away or lose this manual.
©Copyright 2009 Liberty Pumps Inc. All rights reserved

1. General Information/Safety Guidelines
Before Installation, read the following instructions carefully. Each Liberty pump is individually factory tested to assure
proper performance. By closely following these instructions, potential operating problems should be eliminated, providing
years of trouble-free service.
•Risk of electric shock. Always disconnect the pump from the power source before handling or making adjustments.
•The electrical connections and wiring for a pump installation should only be made by qualified personnel.
•This pump is supplied with a grounding conductor and grounding-type attachment plug. To reduce the risk of electric
shock, be certain that it is connected only to a properly grounded, grounding-type 15 Amp receptacle.
•Always wear rubber boots when water is on the floor and you must unplug the pump.
•DO NOT bypass grounding wires or remove ground prong from attachment plugs.
•DO NOT use an extension cord.
•This pump requires a separate, properly fused and grounded branch circuit. Make sure the power source is properly
sized for the voltage and amperage requirements of the pump, as noted on the nameplate.
•The electrical outlet shall be within the length limitations of the pump power cord, and at least 4 feet above floor level
to minimize possible hazards from flood conditions.
•The installation must be in accordance with the National Electric Code, Uniform Plumbing Code, International
Plumbing Code, as well as all applicable local codes and ordinances.
•Sump and sewage pumps often handle materials which could cause illness or disease. Wear adequate protective
clothing when working on a used pump or piping.
•Never enter a pump basin after it has been used. Sewage and effluent can emit several gases which are poisonous.
•Keep clear of suction and discharge openings. To prevent injury, never insert fingers into pump while it is plugged in.
•DO NOT use this product for flammable or corrosive liquid.
•DO NOT use this product in applications where human contact with the pumped fluid is common (such as swimming
pools, fountains, etc.)
•NEVER dispose of materials such as paint thinner or other chemicals down drains, as they can chemically attack and
damage pump components, potentially causing product malfunction or failure.
•This pump is designed to pump high temperature water. The maximum water temperature is 200°F on an intermittent
basis. The maximum water temperature for continuous operation (duty cycle) is 190°F.
•DO NOT use pumps in mud, sand, cement, oil or chemicals.
•DO NOT modify the pump in any way.
•DO NOT lift or carry pump by power cord.
•DO NOT remove any tags from pump or cords.
•If pump is installed during construction before power is available, it must be protected from the environment to prevent
water from entering through the cord plug end, etc.
Materials to avoid: Use of this pump in high temperature water necessitates that accessories be rated for high temperature use as
well. The following table includes a short list of accessories and materials to avoid, and recommended alternatives. This list is not
intended to be all-inclusive, and consideration should be given to the temperature rating of all materials that will come in contact with
high temperature water.
Pipe Control / Alarm floats Sump / Basin
Unacceptable PVC, CPVC,
polyethylene tube
Standard pump, control,
and alarm floats
Polyethylene,
fiberglass
Acceptable Steel, copper High temperature pump,
control, and alarm floats
Concrete, steel
©Copyright 2009 Liberty Pumps Inc. All rights reserved 2

©Copyright 2009 Liberty Pumps Inc. All rights reserved 3
MODEL SPECIFICATIONS
Model HP Volts Phase Full
Load
Amps
Cord
Length
Solids
Handling
FNPT
Discharg
e
Automatic
or Manual
Shut-off
Head ∗
HT41M 4/10 115 1 12 10 ft. ¾” 1½” Manual 20’ ∗
HT41M-2 4/10 115 1 12 20 ft. ¾” 1½” Manual 20’ ∗
HT41A 4/10 115 1 12 10 ft. ¾” 1½” Automatic
20’ ∗
HT41A-2 4/10 115 1 12 20 ft. ¾” 1½” Automatic 20’ ∗
Performance - 77°F Water
0
2
4
6
8
10
12
14
16
18
20
0 10203040506070
Gallons per Minute
Head (ft)
Performance - 200°F Water
0
2
4
6
8
10
12
14
16
0 102030405060
Gallons per Minute
Head (ft )
∗Maximum (shut-off) head and pump performance vary relative to the temperature of the water being pumped. Please review the
performance curves relative to your application.
2. Installation
Set the pump in place making sure the float has adequate clearance
to the side wall of the basin. If an optional control device or float is
used, follow the directions for mounting that accompany the optional
control. Connect the discharge pipe to the pump's threaded
discharge. IMPORTANT: DO NOT REDUCE THE DISCHARGE
PIPE SIZE BELOW THAT WHICH IS PROVIDED ON THE PUMP. In
some applications, it may be necessary to increase the pipe size to
reduce friction losses. Contact Liberty Pumps or other qualified
person if you have questions regarding proper pipe sizes and flow
rates.
Fig. 1 – Typical Installation
This is a recommended installation only. Variations may apply.
After the pump has been mounted, install the remaining discharge
line. A union should be installed just above the cover to facilitate
pump removal if necessary. A check valve is recommended after the
union to prevent the backflow of liquid after each pumping cycle. A
gate 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. Do
not restrict the discharge below that which is provided on the pump.
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.
These pumps come equipped with an air bleed hole to help prevent
air lock. A small spray of water from this hole is normal while pump is
running.

©Copyright 2009 Liberty Pumps Inc. All rights reserved 4
•Risk of electric shock. Always disconnect the pump from the power source before handling or making adjustments.
•This pump is supplied with a grounding conductor and grounding-type attachment plug. To reduce the risk of electric shock, be
certain that it is connected only to a properly grounded, grounding-type receptacle. This receptacle should be protected by a
ground fault circuit interrupter (GFCI
•Never remove the ground pin from the plug.
•Do not use an extension cord.
•All electrical circuitry should be installed by qualified personnel in accordance with the National Electric Code (NEC) and all
applicable local codes or ordinances.
•This pump requires separate, properly fused and grounded branch circuit. Make sure the power source is properly sized for the
voltage and amperage requirements of the motor, as noted on the pump nameplate.
•The electrical outlet or panel shall be within the length limitations of the pump power cord, and at least 4 feet above floor level to
minimize possible hazards from flood conditions.
Fig. 2 – Direct Wiring of 115V or 208-230V,
Single Phase, Automatic Pumps
If the pump is to be wired directly into a control device or junction box,
and it is necessary to remove the plugs, have a certified electrician do
the wiring in accordance with the National Electric Code and applicable
local codes. See Fig. 2 for direct wire installation of single phase
automatic pumps.
3. Maintenance and Troubleshooting
Risk of electric shock. Always disconnect the pump from the power source before handling or making
adjustments.
Problem Cause Correction
•Blown fuse or other interruption of
power; improper voltage.
•Check that the unit is securely plugged in.
Have an electrician check all wiring for proper
connections and adequate voltage and
capacity.
•Switch is unable to move to the
“turn on” position due to
interference with the side of basin
or other obstruction
•Position the pump or switch so that it has
adequate clearance for free operation.
•Insufficient liquid level. •Make sure the liquid level is allowed to rise
enough to activate switch(s).
Pump will not run.
•Defective switch. •Remove and replace switch.
•Switch(s) unable to move to the
“turn off” position due to
interference with the side of basin
or other obstacle.
•Position the pump or switch so that it has
adequate clearance for free operation.
Pump will not turn
off.
•Defective switch. •Remove and replace switch.

©Copyright 2009 Liberty Pumps Inc. All rights reserved 5
•Check the discharge line for foreign material,
including ice if the discharge line passes
through or into cold areas.
•Discharge is blocked or restricted.
•Check valve is stuck closed or
installed backwards.
•Remove check valve(s) and examine for
freedom of operation and proper installation.
•Gate or ball valve is closed. •Open gate or ball valve.
∗NOTE: Liberty Pumps, Inc. assumes no responsibility for damage or injury due to disassembly in the field. Disassembly,
other than at Liberty Pumps or its authorized service centers, automatically voids warranty.
Liberty Pumps, Inc. warrants that pumps of its manufacture are free from all factory defects in material and workmanship
for a period of 2 years from the date of purchase. 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 2 years from the "CODE" (date of manufacture) number noted on the pump nameplate.
The manufacturer's 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; 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, or
water containing sand, lime, cement, gravel or other abrasives; if the product has been used to pump chemicals or
hydrocarbons; if a non-submersible motor has been subjected to excessive moisture; or if the label bearing the serial,
model and code 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 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 two 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.
•Total lift is beyond pump's
capability.
•Try to route piping to a lower level. If not
possible, a larger pump may be required.
Consult the factory.
Pump runs or hums,
but does not pump.
•Pump impeller is jammed or volute
casing is plugged.
•∗Remove the pump from the basin. Detach the
pump base and clean the area around the
impeller. Reassemble and reinstall.
•Check valve was not installed, is
stuck open or is leaking.
•Remove check valve(s) and examine for
freedom of operation and proper installation.
Pump runs
periodically when
fixtures are not in
use. •Fixtures are leaking. •Repair fixtures as required to eliminate leakage.
•∗Remove the pump from the basin. Detach the
pump base and clean the area around the
impeller. Reassemble and reinstall.
•Foreign objects in the impeller
cavity.
•Consult the factory for information regarding
replacement of impeller.
•Broken impeller.
•Worn bearings. •Return pump to the factory or authorized repair
station for repair.
Pump operates
noisily.
•Piping attachments to building are
too rigid.
•Replace a portion of the discharge line with
rubber hose or connector.

©Copyright 2009 Liberty Pumps Inc. All rights reserved 6