Liberty Pumps LCU-MS Manual

Liberty Pumps Pumpe LCU-MS

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Side 1/2

7000 Apple Tree Avenue Bergen, NY 14416

Phone 800-543-2550 Fax 585-494-1839

www.LibertyPumps.com

 After installation, test pump operation by slowly pouring water into the air conditioner

drain pan. Repeat until the pump runs 2–3 times.

 Check for any water leaks, kinked or pinched lines, or siphoning action.

 Clicking noises heard at initial start-up are normal and are usually only heard for the first

few operations.

 Allow a one minute rest after each cycle to prevent triggering the thermal protector.

TEST OPERATION

WIRING

Ensure power to the pump is disconnected before performing any service or maintenance.

1) Clean the reservoir every six months, preferably at the beginning and end of the air

conditioning season.

a) Open the reservoir cover using the opening latch.

b) Clean the reservoir, float and metal filter using a

water solution containing 5% bleach.

c) Replace the float in the initial position (magnet facing UP).

d) Reinstall the reservoir cover.

2) Perform a TEST OPERATION.

MAINTENANCE

metal filter

– 5 –

Unit does not run.

Unit makes loud noises even

after the first dry-running

phase.

Unit runs but does not

pump liquid out properly.

 Check the highest point of the discharge hose does

not exceed the maximum delivery head of the pump.

 Check hoses are not clogged or kinked.

 Check the flow rate of the pump is sufficient for the

condensation volume of air conditioner.

 Check if pump has contact with any hard surfaces. If

it does, anti-vibration materials should be positioned

between the pump and all hard surface.

 Check hoses are not clogged or kinked.

 Check there is no siphoning action.

 Check outlet hose is not blocked.

 Check the power supply.

 Check the air conditioner to see if condensation is

actually being produced.

 Check hoses are not clogged or kinked.

 Check metal filter is not clogged.

TROUBLESHOOTING

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 the date 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.

LIMITED WARRANTY

LCU-MS Series

Mini-Split Condensate Pump

USER GUIDE

7000 Apple Tree Avenue

Bergen, NY 14416

Phone 800-543-2550

Fax 585-494-1839

www.LibertyPumps.com

For Air Conditioners up to 7 kW

MADE IN KOREA

Read this user guide carefully before attempting to install, operate, or

service the LCU-MS Series pump. Know the pump application, limitations,

and potential hazards. Protect yourself and others by observing all safety

information. Failure to comply with these instructions could result in

personal injury and/or property damage. Retain this user guide for future

reference. Installation, connections, and service shall be done by qualified

personnel only.

LCU-MS2

(LCU-MS + DUCTS)

LCU-MS

CEILING

DRAIN PAN

2035000B

CONFORMS TO ANSI/UL STD. 778

CERTIFIED TO CAN/CSA STD. C22.2 NO.108

4007096

PRODUCT INFORMATION

 Keep this manual handy for future reference

 Retain dated sales receipt for warranty

Pump Model #: _____________________________________________

Pump Serial #: ______________________________________________

Install Date: _________________________________________________

COM

KEY

1 Pump Unit

2 Indoor A/C Unit

3 Interconnecting Cable

4 Outdoor A/C Unit

(L) Live (hot): Brown

(N) Neutral (common): Blue

(NC) Normally Closed: Black

(COM) Common: White

1. Carefully unpack the unit and check for damage. Make sure all parts are included. The

units are thoroughly tested before packing to insure safe delivery and operation. If there is

any sign of damage due to shipment, return it to the place of purchase for repair or

replacement.

2. Select proper mounting location for the reservoir and the pump.

3. Connect the inlet hose [

11] to the drain hose of the air conditioner. Connect the other end

of the inlet hose [

11] to the reservoir inlet port [7].

4. Connect the vent hose [

14] to the vent hole [9] on the reservoir cover.

Note: The vent and vent hose must not get clogged.

5. Mount the reservoir [

2] at the selected location using the double-sided adhesive pad [15].

Note: Reservoir [

2] must be level and mounted horizontally.

6. Connect the reservoir outlet port [

8] and the pump inlet port [6] with the connection hose

[

13].

7. Attach the double-sided adhesive pad [

15] to the bottom of the pump. Mount the pump [1]

at the established location. If needed, use the cable ties [

15] to secure the pump [1].

Note: Attach the double-sided adhesive pad [

15] between the pump [1] and any hard

surface to reduce vibration noise.

8. Connect the overflow alarm cable (COM and NC) into the cooling signal wire of the air

conditioner indoor unit to stop operation of the air conditioning unit in the event the of

blockage or pump failure.

Note: All wiring shall be done by qualified personnel who have assessed the set-up of the

individual air conditioning unit.

9. Connect the discharge hose [

13] to the pump outlet port [5] and extend the discharge hose

to an appropriate drain.

Note: Make sure connection hoses are not clogged, kinked, or twisted. Use anti-kink

spring on tubing as needed [

12].

10. Verify the power source voltage matches the pump’s voltage requirement. Connect the

pump power supply cable [

3] to a constant source of power (not a fan or other device that

runs intermittently).

Note: Do NOT connect or link the air conditioner’s power cable directly to the power

supply cable of the pump [

3].

11. When preceding steps are complete, verify the unit and connections by performing a TEST

OPERATION [next page].

INSTALLATION

WATER LEVEL SENSOR

Cover

Open

Tab

Level Tolerance

(±2 mm)

10 mm / 0.39 in

Pump OFF

15 mm / 0.59 in

Pump ON

20 mm / 0.79 in

Alarm ON

Float

Vent

Reservoir

Cover

Magnet Always

Facing UP

Bottom of Reservoir

– 2 – – 3 – – 4 –

COMPONENT IDENTIFICATION

[5] Pump Outlet Port

[9] Vent

Hole

[1] Pump

[4] Communication Cable

[3] Power Supply & Overflow Alarm Cable

[6] Pump Inlet Port

[7] Reservoir

Inlet Port

[8] Reservoir

Outlet Port

[10] Float with Magnet

[2] Reservoir

COMPONENTS

[13] Reservoir

Connection/

Discharge Hose

[12] Anti-kink

Spring

[11]

Inlet Hose

[14] Vent Hose

[15] Cable Ties &

Double-sided

Adhesive Pad

Straight Duct

Elbow Duct

Duct Socket

Duct End

Ducts for LCU-MS2

■ Do not use to pump flammable or explosive fluids such as gasoline, fuel oil, kerosene, etc. Do

not use in flammable and/or explosive atmospheres.

■ Do not handle or unplug pump with wet hands, when standing on a wet/damp surface, or in

water.

■ 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.

■

This pump has not been investigated for use in swimming pool or marine areas.

■ Connect pump to power supply as specified on pump nameplate.

■ For cord replacement: power cord must be of the same length and type as originally installed on

the Liberty Pumps product. Use of incorrect cord may lead to exceeding the electrical rating of the

cord and could result in death, serious injury, or other significant failure.

■ Allow means to disconnect wiring.

■ In any installation where property damage and/or personal injury might result from an inoperative

or leaking pump, a backup system and/or alarm should be used.

■ Accidental contact with electrically live parts, items, or water can cause serious injury or death.

■ Always disconnect pump from power source before handling or making any adjustments.

■ All electrical and safety practices shall be followed for the NEC, OSHA, or applicable local codes

and ordinances.

■ Do not allow children to play with the pump.

■ Do not submerge pump or allow pump to be exposed to water. Pump is intended for dry, indoor

locations only.

■ All installation and service of pumps shall be done by qualified personnel.

■ Do not run pump dry.

■ Do not modify the pump/pump system in any way.

■ This product contains chemicals known to the State of California to cause cancer and birth

defects, or other reproductive harm. www.p65warnings.ca.gov.

WARNINGS

NOTES

■ Do not use pumps with fluid over 40°C (104°F).

■ Do not twist or kink the inlet or discharge hoses.

■

Enclosure Type 2

■

Thermally protected

Gallon/Hour

Liter/Hour

Head

16.0

4.23

0 m [0 ft]

2.38

9.0

4 m [13 ft]

1.59

6.0

6 m [20 ft]

1.06

8 m [26 ft]

FLOW RATES

ITEM

SPECIFICATION

ITEM

SPECIFICATION

For Use With

Air Conditioner

(max 7 kW)

Fluid [Fresh Water]

1–40°C

33.8–104°F

Operating Time

(Non-continuous)

Refer to Product Label

5 min ON

1 min OFF

Power Supply

Safety Switch

Contacts

Max 3A 110 VAC

3A 240 VAC

Pump On, Dry Run

<1 min

Max Suction Head

2 m

6.6 ft

Pump Size

(LxWxH)

mm: 167.2 x 73.6 x 43

in: 6.6 x 2.9 x 1.7

Max Flow Rate

@ Zero Head

16 l/hr

4.23 gal/hr

Reservoir Capacity

35 ml

1.2 oz

Max Discharge Head

8 m

26.2 ft

Reservoir Size

(LxWxH)

mm: 76.7 x 43.2 x 40.3

in: 3 x 1.7 x 1.6

Electrical Output

Thermal Protection

100°C

212°F

► Specifications subject to change without notice.

SPECIFICATIONS

Liberty Pumps LCU-MS Series is an automatic condensate removal system designed to remove

water from a ductless mini-split air conditioner evaporative coil when gravity-feed drainage is

not possible or practical.

Produkt Specifikationer

Mærke:	Liberty Pumps
Kategori:	Pumpe
Model:	LCU-MS

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