GENERAL PURPOSE UNDERCOUNTER FREEZERS 

LABH-2-FM

OWNER’S INSTRUCTIONS

This manual describes how to operate and care for your appliance to get the best, most efficient, performance.

READ THIS BOOK!

Note to Customer:

This merchandise was carefully packed and thoroughly inspected before leaving our plant. Responsibility for its 

safe delivery was assumed by the carrier upon acceptance of the shipment. As directed on the side of your 

packing carton, claims for loss or damage sustained in transit must be made on the carrier as follows:

A.) Visible Loss, Damage, Shortage External Evidence of Loss or Damage: This type of damage must be noted on 

the freight bill and acknowledged by the carrier’s agent (driver) at time of delivery. Make sure you get a signed 

copy. Send a written request for an inspection to the carrier. 

B.) Concealed Damage: This type of damage may not be discovered until the unit is being unpacked. When 

concealed damage is discovered, stop unpacking immediately and contact the carrier immediately to report 

the claim and request an inspection. This should be done as soon as possible and, in any case, must be done 

within 15 days or receiving the merchandise. If at all possible, do not move the item and save all packaging 

material for carrier’s inspection. 

C.) FAILURE TO FOLLOW THESE INSTRUCTIONS MAY RESULT IN THE CARRIER REFUSING TO HONOR YOUR 

COMPANY’S CLAIM. UNDER NO CIRCUMSTANCES SHOULD THE MERCHANDISE BE RETURNED TO THE 

MANUFACTURER. NO RETURNS WILL BE ACCEPTED WITHOUT PRIOR AUTHORIZATION.

Horizon Scientific

125 Varnfield Drive

Summerville, SC 29483

Phone: 800-648-4041

Fax: 843-821-8051

Warranty:

Two-Year Parts and Labor

5 Years Compressor Parts

Revision Date

11/27/2012
2

TABLE OF CONTENTS

RECEIVING .........................................................................................3

INSTALLATION ...................................................................................4

NORMAL OPERATION ........................................................................6

QUICK TROUBLESHOOTING GUIDE .....................................................7

MAINTENANCE AND CLEANING..........................................................9

PRODUCT WARRANTY INFORMATION..............................................10

BEFORE CALLING THE MANUFACTURER’S TECHNICAL SUPPORT DEPARTMENT, please have the 

unit’s model and serial number ready as well as the problem description. The model and serial 

number is located on the serial tag which can be found on the interior left upper wall of the 

unit.

For convenience, you may want to record the following information here for easy access in the 

future.

Model number: __________________________________

Serial number: __________________________________

Date of delivery: _________________________________
3

RECEIVING

Your unit was built, packaged, and inspected with extreme care. We shipped it to you using 

carriers we trust with a proven track record of careful handling, good customer service, and on 

time delivery. Unfortunately, regardless of all of these efforts sometimes accidents happen and 

occasionally those accidents result in shipping damage. When the carrier picked up the 

merchandise from us, they assumed responsibility for its condition en route to you. Thus, any 

claims for shipping damage must be filed with the carrier. Like anybody else, carriers don’t like 

to pay out on insurance claims, so their claims procedures and requirements are very 

restrictive. You should consult the carrier’s website for their specific claims procedures. You 

should also know that time is of the essence. 

There are two general types of shipping damage. The first is visible damage. This type of 

damage includes visible loss, damage, shortage or any external evidence of loss or damage that 

is visible at time of delivery. This type of damage must be noted in detail on your delivery 

receipt. Make sure the driver signs and dates the delivery receipt, acknowledging the 

damage. This has to happen at the time of delivery or it won’t happen at all. Keep a copy for 

your records and send another to the carrier’s damage claims department along with a formal 

request for an inspection report. Follow up with a phone call. Their contact information can be 

found on the carrier’s web site. 

The second type of shipping damage is concealed damage. This type of damage will probably 

not be apparent at time of delivery and may not be discovered until unpacking and inspecting 

the unit. Remember, time is of the essence here. You should unpack and inspect the unit as 

soon as possible. Each day that passes reduces the likelihood that the carrier will pay the claim. 

As soon as the concealed damage is discovered, stop unpacking and retain all packing 

materials. Contact the carrier by phone to report the claim. Note the date and time and 

person you spoke with. Get a claim number. Follow up with a written letter referencing the 

claim number and including a formal request for an inspection. Again, consult the carrier’s 

website for specific claim instructions and follow them precisely. 

AS STATED ABOVE, THE CARRIER IS YOUR SOLE SOURCE FOR SATISFACTION OF A DAMAGE 

CLAIM. UNDER NO CIRCUMSTANCES SHOULD THE MERCHANDISE BE RETURNED TO THE 

MANUFACTURER. NO RETURNS WILL BE ACCEPTED WITHOUT PRIOR AUTHORIZATION.
4

INSTALLATION 

UNCRATING

Move the unit as close to the final location as possible before unpacking. Remove from the 

box and the styrofoam base. The location should be as close as possible to the power outlet

so an extension cord is not needed. This unit requires a minimum of 4 inches of air flow 

space in back and 3 inches on the sides and top. Do not store material on the top of this 

unit. 

LEVELING 

You can level your unit with the screw-type adjustable leveling legs on the front corners of 

the unit. Turn counterclockwise to raise the corner; turn clockwise to lower it. Leveling legs 

are required in front only. Unit may have a slight tilt from front to back after legs are 

installed. This is acceptable and is recommended on this unit.

POWER SOURCE 

The supply circuit to this cabinet 

must conform to all National and 

Local Electrical Codes. Consult the 

cabinet Serial-Data plate for 

voltage, cycle, phase, and amp 

requirements before making 

connection. VOLTAGE SHOULD 

NOT VARY MORE THAN 5% FROM 

SERIAL PLATE RATINGS. A separate circuit is 

recommended to prevent possible loss of product 

due to over-loading or failure of other equipment 

on the same circuit. PROTECT THE CIRCUIT WITH A 

20 AMP DELAY-TYPE FUSE OR CIRCUIT BREAKER. 

Do not use an extension cord. Be sure your unit is 

properly grounded. Use the 3-prong plug provided 

into a 3-prong grounded outlet. (Only this method 

complies with national electrical codes, local codes 

and ordinances.) Unless the above grounding 

method is followed, you are not protected against 

severe or lethal shock in the event of a short circuit 

of an electrical component or wiring of the unit.
5

STARTING 

There are no compressor shipping bolts to loosen or valves to open. All that is necessary 

after the unit has been properly leveled is to plug the service cord into an electrical outlet 

When starting this new appliance, allow the cabinet to operate a minimum of eight hours or 

until it has started cycling normally before placing product in the cabinet. The motor 

compressor may start and stop several times when the unit is first started or after 

defrosting, especially if the weather is very hot. This is only normal functioning of the 

motor overload protector. The motor compressor will cycle normally as soon as the excess 

heat has been removed. 

TEMPERATURE CONTROL

NOTE:

The control is preset at the factory to provide the desired air and 

product temperatures inside of the unit and requires no further 

adjustment. Please contact the manufacturer’s Technical 

Support Department before making any adjustments to 

determine if adjustment is necessary and, if so, to make sure it is 

performed properly.

This unit has a manual thermostat which controls the compressor. It is located inside the 

compartment. Turning the thermostat towards the “COLDER” arrow will make the unit 

colder. Turning the thermostat towards “WARMER” arrow will make the unit warmer. 

Turning the thermostat to the off will turn the unit off. 
6

NORMAL OPERATION

After the unit is properly installed and power is applied, it will take some time before the 

system is cooled down to temperature and cycling normally. You should wait 8 hours on the 

first startup before beginning to add product to the unit. This ensures that the unit is installed 

and operating properly before being put into service. On subsequent startups (after cleanings, 

for example), this wait time can be reduced to about 3 hours. After this wait time, the unit 

should be cycling in the desired temperature band. The temperature control was calibrated 

before leaving the factory, so no adjustment should be necessary. 

Loading the units will again cause temperature to rise as the warmer product is introduced into 

the compartment. If a large amount of product is to be introduced, it is a good idea to do it in 

stages, allowing several hours between stages to allow temperature to stabilize again before 

introducing additional warm product. This will minimize the temperature transient while 

loading. Other tips for successful loading include: 

- Leave about 2-3 inches of free space along the back and sides of the unit to allow for proper 

air flow and, therefore, more even cooling of the product. 

- Do not overload the unit. Maximum suggested load is about 75% of the chamber capacity. 

Additionally, the load should be distributed evenly from top to bottom and side to side for 

best results. 

- Minimize the time the door is open. On top of letting the cold air out, you are also letting 

warm, moist air in which can result in more condensation and/or frost in the unit. 

Remember that the units are calibrated to the desired temperature band before leaving the 

factory. We also do extensive testing to ensure that these temperatures will result in product 

temperatures in the desired band. There should be no need to adjust the temperature control 

on these units, but if it is necessary, they can be adjusted using the manual thermostat on the 

inside of the unit. 

It is STRONGLY RECOMMENDED that you contact the manufacturer’s Technical Support 

Department prior to performing any temperature adjustments to ensure the adjustment is 

necessary and, if so, it is performed correctly.
7

QUICK TROUBLESHOOTING GUIDE

Check these items before calling for service

PROBLEM: POSSIBLE CAUSE / SOULTIONS:

Unit does not run

 Electrical circuit is not 110-120V 60Hz.

 The power cord is not plugged in.

 No power at electrical outlet. Check to make sure 

breaker is not tripped or fuse is not blown. Additionally, 

make sure unit is not plugged into a Ground Fault Circuit 

Interrupter (GFCI) type of outlet. 

Unit does not maintain at the 

proper temperature

 Check the room temperature. We recommend the 

refrigerator or freezer should be placed in the air 

conditioned room between 65°F to 85°F. If the room 

temp is too warm, the refrigerator or freezer may not be 

able to maintain the interior temp at proper range. 

 Door is not closed properly.

 Amount of stored product is overloaded.

 Product replacements are pushed against rear wall or 

interrupted the proper refrigerator air circulation. For 

the proper air circulation, place the products evenly on 

each shelf. Do not push against the refrigerator’s rear or 

side walls.

 Evaporator is blocked by frost or ice. Remove the 

products, unplug the refrigerator or freezer power, and 

allow the unit to defrost. If the problem still exists, call 

for service. 

 3

rd party thermometer is placed incorrectly. For proper 

temperature monitoring, the thermometer should be 

place in the middle of refrigerator.

Appliance runs too long

 Prolong door openings.

 Control set too cold.

 Room temperature is high which will make the unit work 

harder to keep cool. 

Temperature of external wall 

surface is warm

 The exterior walls can be as much as 30 degrees warmer 

than room temperature due to the embedded 

condenser coils. This is normal when the unit is 

operating. 
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MOISTURE DURING THE SUMMER MONTHS

The amount of moisture, condensation, or high humidity related issues increase during the summer 

and, in most cases, will self-resolve when the weather cools down. Please note a refrigeration 

system will NOT generate moisture or water but simply condenses the moisture that is already in 

the chamber. Keeping the unit in an air conditioned, low humidity space will resolve many issues. 

Other things you should check:

1. Location of the refrigerator (See Quick Troubleshooting Guide above)

2. Door sealing and frequency of door opening event (See Quick Troubleshooting Guide above)

3. Make sure there is a water trap (U-shaped loop) in the drain tube near the end. This will 

“trap” a small amount of water in the loop and prevent air from entering the chamber 

through the tube. 

BEFORE CALLING THE MANUFACTURER’S TECHNICAL SUPPORT DEPARTMENT, please have the 

unit’s model and serial number ready as well as the problem description. The model and serial 

number is located on the serial tag which can be found on the interior left upper wall of the 

unit.

PROBLEM: POSSIBLE CAUSE / SOULTIONS:

Compressor noises

 Compressor may be overheated. Please check the room 

temp and ensure the range is within 65°F to 85°F. If the 

problem still exists, call for service.

Moisture collects inside

 Door gasket is not sealing properly. Check for debris, 

cracks, and items passing through door at the gasket. 

 The refrigerator or freezer is facing a doorway or is 

underneath of air conditioning vent. Relocate the unit or 

redirect air vent.

 Too many door openings. Minimize time door is open.

 Hot, humid weather increases condensation.

 Make sure there is a water trap (U-shaped loop) in the 

drain tube near the compressor. This will “trap” a small 

amount of water in the loop and prevent air from 

entering the chamber through the tube. 

Moisture collects on outside 

surface

 Hot, humid weather increases condensation.

 As humidity decreases, moisture will disappear.

Odor inside the unit

 Interior needs to be cleaned. See section on 

maintenance and cleaning in this manual. 

 Make sure product containers are tightly sealed to 

prevent leakage

Door will not close

 The unit is not level. Refer to the Leveling section at the 

beginning of this manual

 Check for dirt and debris or items passing through the 

door seal.
9

MAINTENANCE AND CLEANING

These units require very little maintenance. They should be cleaned periodically to keep them 

running efficiently. Use the cleaning agents and suggestions in the table below for best results. 

The freezers should be defrosted and cleaned whenever 1⁄4 to 1⁄2 inch of frost has accumulated inside the 

unit or if the unit will not maintain proper temperature. Use the procedures in the Defrosting section

below. 

CLEANING

PART CLEANING AGENTS TIPS AND PRECAUTIONS

Interior and Door 

Liners

Soap and water

Baking soda and water

Use 2 tablespoons of baking soda in 1 quart of 

warm water

Be sure to wring excess water out of sponge or 

cloth before cleaning around controls, light bulb 

or any electrical parts.

Glass Doors (if 

applicable)

Soap and water Clean the glass with a mild detergent and water 

on a soft cloth or sponge. Rinse with water and 

wipe dry

Door Gaskets Soap and water Wipe gaskets and their seating surfaces with a 

clean soft cloth

Shelves Soap and water Do not wash removable shelves in dishwasher

Exterior and 

Handles

Soap and water

Non Abrasive Glass 

Cleaner

Do not use commercial household cleaners, 

ammonia, or alcohol to clean handles

Use a soft cloth to clean smooth handles

Do not use a dry cloth to clean smooth handles

DEFROSTING

It is important to defrost and clean the unit when 1⁄4 to 1⁄2 inch of frost has accumulated inside 

the unit or around the evaporator coils or when the unit will not maintain proper temperature. 

When defrosting becomes necessary, turn the unit off by disconnecting it from the power 

source. DO NOT ADJUST THE THERMOSTAT. Remove the product and leave the door open 

while defrosting the evaporator. The frost should melt and drain through the drain tube to the 

drain pan under the unit. Place towels in the bottom of the unit as necessary to help absorb the 

melted frost. Once the unit is defrosted, clean it using the cleaning suggestions in the table 

above. Wipe away any excess water and return the unit to service per the “Normal Operation”

section of this manual. 
10

PRODUCT WARRANTY INFORMATION

HORIZON SCIENTIFIC, INC. PRODUCT WARRANTY

Horizon Scientific, Inc. warrants to the original purchaser every new Horizon Scientific, Inc. refrigerated 

unit, the cabinet and all parts thereof, to be free from defects in material or workmanship, when such 

unit is installed, used, and maintained in accordance with provided instructions, for a period of two (2) 

years. The warranty period starts two weeks from the date of shipment from Horizon Scientific, Inc. 

This two week period allows ample shipping time so that the warranty will go into effect at 

approximately the same time your equipment is delivered. Unless subject to prior written agreement 

with Horizon Scientific, Inc., this warranty does not allow for any warranty start deferment greater than 

two weeks from date of shipment due to a delayed installation and/or start-up. By purchasing any 

product from Horizon Scientific, Inc., you and any entity for which you are purchasing acknowledge and 

agree to each and every provision contained herein, and all other Notices and Terms provided to 

Purchaser by Horizon Scientific, Inc., which are hereby incorporated.

Under this warranty, Horizon Scientific, Inc., through its authorized service organizations, will repair, or 

at its option, replace any part found to contain a manufacturing defect in material or workmanship 

without charge to the owner for parts and service labor. Replacement or repaired parts will be 

warranted for only the unexpired portion of the original warranty. Horizon Scientific, Inc. will not 

assume any shipping or cartage costs for parts under warranty. These costs shall be paid by the 

customer.

ADDITIONAL THREE YEAR COMPRESSOR WARRANTY

In addition to the two (2) year warranty stated above, Horizon Scientific, Inc. warrants its hermetically 

and semi-hermetically sealed compressors to be free from defects in both material and workmanship 

under normal use and service for a period of three (3) additional years from the end of the initial two (2) 

year warranty period, but not to exceed five (5) years after shipment from Horizon Scientific, Inc.

Compressors determined by Horizon Scientific, Inc. to have been defective within this extended time 

period will, at Horizon Scientific, Inc.'s option, be either repaired or replaced with a compressor or 

compressor parts of similar design and capacity. 

The three (3) year extended compressor warranty applies only to hermetically and semi-hermetically 

sealed parts of the compressor and does not apply to any other parts or components, including, but not 

limited to, cabinet, paint finish, temperature control, refrigerant, metering device, driers, motor starting 

equipment, fan assembly or any other electrical components.

Horizon Scientific, Inc.’s sole obligation under this warranty is limited to either repair or replacement of 

parts, subject to the additional limitations below. This warranty neither assumes nor authorizes any 

person to assume obligations other than expressly covered by this warranty.

NO CONSEQUENTIAL DAMAGES. Horizon Scientific, Inc. is not responsible for economic loss; profit loss; 

or special, indirect or consequential damages, including without limitation, losses or damages arising 

from contents spoilage claims whether or not on account of refrigeration failure, electrical failure, 

power failure, or compressor failure. HORIZON SCIENTIFIC, INC.’S MAXIMUM CUMULATIVE LIABILITY 

RELATIVE TO ALL CLAIMS AND LIABILITIES, INCLUDING OBLIGATIONS UNDER ANY INDEMNITY, WHETHER 
11

OR NOT INSURED, SHALL NOT EXCEED THE COST OF THE PRODUCT(S) GIVING RISE TO THE CLAIM OR 

LIABILITY.

WARRANTY IS NOT TRANSFERABLE. This warranty is not assignable and applies only in favor of the 

original purchaser/user to whom delivered. Any such assignment or transfer shall void the warranties 

herein made and shall void all warranties, express or implied, including any warranty of merchantability 

or fitness for a particular purpose.

NO IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. There are 

no other warranties, express, implied, or statutory, except the two (2) year warranty and the additional 

three (3) year compressor warranty as described above. These warranties are exclusive and in lieu of all 

other warranties, including implied warranty and merchantability or fitness for a particular purpose. 

There are no warranties which extend beyond the description on the face hereof, whether based on 

contract, warranty, tort (including negligence), strict liability, indemnity, or any other legal theory, and 

whether arising out of warranties, representations, instructions, installations, or non-conformities from 

any cause. Purchaser further acknowledges that the purchase price of the Product reflects these 

warranty terms and remedies.

ALTERATION, NEGLECT, ABUSE, MISUSE, ACCIDENT, DAMAGE DURING TRANSIT OR INSTALLATION, 

FIRE, FLOOD OR OTHER EXTERNAL CAUSES. 

Horizon Scientific, Inc. is not responsible for the repair or replacement of any parts that Horizon 

Scientific, Inc. determines have been subjected after the date of manufacture to alteration, neglect, 

abuse, misuse, accident, damage during transit or installation, fire, flood or other external causes. It 

does not apply to defects resulting from failure to properly install, operate or maintain the product in 

accordance with the printed instructions provided, or damage caused by the storage of any corrosive 

material that comes in contact with the interior or exterior portions of the cabinet, or the use of spark 

producing equipment or containers (such as galvanized or carbonized steel containers) that come in 

contact with any interior portion of the cabinet.

OUTSIDE U.S./CANADA. This warranty does not apply to, and Horizon Scientific, Inc. is not responsible 

for, any warranty claims made on products sold or used outside the United States and Canada.

CHOICE OF LAW/VENUE. The laws of the State of South Carolina shall govern the validity, interpretation 

and enforcement of this warranty, regardless of conflicts of law principles. Purchaser agrees that proper 

venue for any action to enforce the terms of this warranty shall be the Dorchester County District 

Courts, South Carolina. Purchaser submits the jurisdiction of such courts over the Purchaser and the 

subject matter of any such action. Any action for breach of these warranty provisions must be 

commenced within one (1) year after that cause of action has accrued.

WARRANTY CLAIMS. To obtain prompt warranty service, simply contact the manufacturer at 800-648-

4041. Horizon Scientific, Inc.’s shipping records showing date of shipment shall be conclusive in 

establishing the warranty period. All claims should include: model number of the refrigerator, the serial 

number of the cabinet, proof of purchase, date of installation, and all pertinent information supporting 

the existence of the alleged defect. Any repairs must be authorized by Horizon in order for the warranty 

to be honored.