Liberty Pumps ALM-2-1 User Manual

ALM-2 and ALM-2-1 Alarm System Installation Instructions

This alarm system monitors liquid levels in lift pump chambers, sump pump basins, holding tanks, sewage, agricultural, and other
water applications.

The ALM-2 and ALM-2-1 alarm systems can serve as a high or low level alarm depending on the fl oat switch model used. The alarm
horn sounds when a potentially threatening liquid level condition occurs. The horn can be turned off, but the alarm light remains on
until the condition is remedied. Once the condition is cleared the alarm will automatically reset. A green "power on" light indicates
120 VAC primary power to the alarm. Low battery chirp feature indicates when battery should be replaced.

FEATURES



120 VAC Model Voltage - (circuits not supervised) Primary: 120 VAC, 60 Hz, 2.4 watts maximum

(alarm condition) Operating Voltage: 9 VDC Double insulation.



NEMA 1 enclosure rated for indoor use.



Automatic alarm reset.



Red "alarm" light and green "power on" light, alarm "test" switch, and horn "silence" switch.



6 foot (1.8 meter) power cord.



Alarm horn sounds at 87 decibels at 10 feet (3 meters).



Can be used with any UL Listed switching mechanism rated to include 1 amp, 9 VDC load.



Maximum line impedance for initiating device: 5 ohms.



If primary power fails, the alarm system continues to work due to battery backup feature.

Battery Backup Power - (circuit not supervised) 9 VDC.



Complete package includes standard SJE SignalMaster® control switch with 10 (ALM-2-1) or

20 (ALM-2) feet of cable, mounting clamp, and cord bung.



Switching mechanism operates on low voltage and is isolated from the power line to reduce the

possibility of shock.



Low battery chirp.



External terminal block for easy fl oat switch installation.



Three-year limited warranty.

• Periodically inspect the product. Check that the cable has not become worn or that the housing has not been damaged so as to impair the protection of the

PREVENTATIVE MAINTENANCE

product. Replace the product immediately if any damage is found or suspected.

• Periodically check to see that the fl oat is free to move and operate the switch.

• Use only SJE-Rhombus

®

replacement parts.

LIBERTY PUMPS® THREE-YEAR LIMITED WARRANTY

Liberty Pumps, Inc. warrants that products of its manufacture
are free from all factory defects in material and workmanship for a
period of 3 years from the date of purchase. The date of purchase
shall be determined by a dated sales receipt noting the model
and serial number. The dated sales receipt must accompany the
returned product if the date of return is more than 3 years from
the date of manufacture noted on the product.

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 warranty­voiding 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, modifi ed, abused or tampered with; if the electrical
cord has been damaged or improperly spliced; if the pump
discharge has been reduced in size; if the pump has been used
in hot water 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 be subject to
excessive moisture; or if the label bearing the serial 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 fi tness for a particular
purpose, are limited to three years from date of purchase.

The Warranty contains the exclusive remedy of the purchaser,
and, where permitted, liability for consequential or incidental
damages under any and all warranties are excluded.

ELECTRICAL SHOCK HAZARD

Disconnect power before installing or servicing this
product. A qualifi ed service person must install and
service this product according to applicable electrical
and plumbing codes.

Failure to follow these precautions could result in serious injury or death. Replace product immediately if switch cable becomes damaged

or severed. Keep these instructions with warranty after installation. This product must be installed in accordance with National Electric Code, ANSI/

NFPA 70 so as to prevent moisture from entering or accumulating within boxes, conduit bodies, fi ttings, fl oat housing, or cable.

EXPLOSION OR FIRE HAZARD

Do not use this product with fl ammable liquids.
Do not install in hazardous locations as defi ned by
National Electrical Code, ANSI/NFPA 70.

For detailed specifi cations on this product, or for the complete line of

Liberty Pumps

®

products, visit our web site at www.libertypumps.com.

INSTALLING THE ALARM & FLOAT SWITCH

1. Determine indoor mounting location for alarm.

2. Insert screw (supplied) at desired wall location.
Note: Screw is to be located over wall stud or used with

a wall anchor sized for a #8 x 1.25" self tapping screw.

3. Hang alarm using keyhole on back of enclosure. Install
second screw in mounting fl ange located on bottom of
alarm.

4. Make sure power to alarm is disconnected.

5. Place the fl oat switch cord into the clamp as shown in
Figure A.

6. Locate the clamp at the desired activation level and secure
the clamp to the discharge pipe as shown in Figure A.

Note: Do not install cord under hose clamp.

7. T ighten the hose clamp using a screwdriver. Over tightening
may result in damage to the plastic clamp. Make sure the
fl oat cable is not allowed to touch the excess hose clamp
band during operation.

Note: All hose clamp components are made of 18-8

stainless steel material. See your Liberty Pumps
for replacements.

8. Bring cable leads back to alarm and wire according to
Figure B. A cord bung is included with the kit.

Note: When used with a pump application, connect alarm

to a circuit separate from the pump circuit. This allows the
alarm to operate if the pump circuit fails.

9. Open battery door and install 9 VDC alkaline battery (not
included). Battery must be installed for backup alarm
to function. Note: The green power on light does not
come on when unit is on battery power.

10. Plug the alarm in to apply primary power. Verify that the
green "power on" light illuminates.

1 1. Check installation by manually tipping the fl oat. The horn

will sound and the "alarm" light should come on.

12. Press "silence" button to silence the horn. The horn will
silence while the red "alarm" light stays on.

13. Tip fl oat back down and press "test" button. The "alarm"
light and horn will activate.

14. T est unit once a week. Replace battery every 12 months
and after each alarm condition to ensure proper
operation. If battery is low, low battery chirp feature will
cause the horn to chirp approximately once per minute.
Replace battery when this happens.

15. Using the provided cable clasp, secure cord to outlet as
shown in Figure C. Use existing receptacle faceplate screw
and supplied washer.

16. Test unit once per week to insure proper operation.

®

supplier

Figure A

Figure B

Figure C

7299000A

7000 Apple Tree Avenue



Bergen, New York 14416 USA  Phone: [phone]

www.libertypumps.com

©SJE-Rhombus 06/12

Instl. Instr. PN 1017740D

Model TAAB