VWR EPR-1404 User manual

Part number 20056, Rev 0
HAZARDOUS LOCATION/EXPLOSION PROOF REFRIGERATORS, FREEZERS,
& DUAL-TEMP UNITS - MODELS EPR-1404, EPR-1704, EPR-2004,
EPR-3004, EPF-1420, EPF-1720, EPF-2020, EPF-3020, EPRFC-30
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: [phone]
Fax: [phone]
Warranty:
Two-Year Parts and Labor
5 Years Compressor Parts
Revision Date
08/23/2012

2
TABLE OF CONTENTS
RECEIVING ............................................................................................................. 4
INSTALLATION........................................................................................................ 5
OPERATION............................................................................................................ 7
QUICK TROUBLESHOOTING GUIDE ........................................................................ 8
MAINTENANCE AND CLEANING ........................................................................... 10
PRODUCT WARRANTY.......................................................................................... 12
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
ATTENTION!!
PLEASE BE SURE TO CAREFULLY READ AND FOLLOW THESE
IMPORTANT SAFETY INSTRUCTIONS!!
THIS EQUIPMENT IS INTENDED FOR STORAGE OF FLAMMABLE LIQUIDS
AND MATERIALS CAPABLE OF PRODUCING FLAMMABLE VAPORS IN
HAZARDOUS LOCATIONS, CLASS I, DIVISION II, GROUP C&D. KEEP
AWAY FROM SPARKS AND OPEN FLAMES.
STORING UNSEALED CONTAINERS OF CORROSIVE MATERIALS CAN
CAUSE PERMANENT DAMAGE TO THIS REFRIGERATION UNIT AND WILL
VOID THE WARRANTY.
ALWAYS WEAR SAFETY GLASSES WHEN WORKING WITH THIS
EQUIPMENT.
ANY UNAUTHORIZED MODIFICATION OR SERVICE ON THIS EQUIPMENT
WILL VOID THE FACTORY WARRANTY. FOR ANY SERVICE ISSUE OR
CONCERN ON THIS EQUIPMENT, PLEASE CONTACT US.
PER NFPA (National Fire Protection Association), THE POWER SOURCE
TO THIS EQUIPMENT MUST BE HARD-WIRED. UNDER NO
CIRCUMSTANCES SHOULD ANOTHER UNIT BE WIRED INTO THIS SAME
CIRCUIT.

4
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.

5
INSTALLATION
UNCRATING
Move your new unit as close to the final location as possible before
unpacking. Remove the wooden planks or skid. 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.
PLEASE NOTE! Your refrigerator or freezer is designed for INDOOR
USE and should be operated in an air conditioned space with
temperature between 65°F to 85°F.
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
This unit is equipped with 18 IN FACTORY SEALED WIRING. THESE WIRES MUST BE HARD
WIRED THROUGH SEALED CONDUIT TO THE POWER SOURCE PER NFPA AND NEC. VOLTAGE
SHOULD NOT VARY MORE THAN 5% FROM SERIAL PLATE RATINGS. PROTECT THE CIRCUIT
WITH A 20 AMP DELAY-TYPE FUSE OR CIRCUIT BREAKER.
STARTING
There are no compressor shipping bolts to loosen or valves to open. All that is necessary after
the unit has been properly connected and leveled is to energize the circuit. 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 normal operation of the motor overload protector. The motor compressor will
cycle normally as soon as the excess heat has been removed.
DOOR BINS (not applicable to all models)
Your unit may come equipped with storage bins in the door. Because of the temperature
characteristics of these units, items stored in these bins may not be maintained in the desired
temperature band. Please restrict the use of these bins for non-critical temperature storage.

6
SHELF INSTALLATION (FOR REFRIGERATORS ONLY)
Hook shelf clips onto pilaster strips (see Illustration). Position all four shelf clips equal in
distance from the floor for flat shelves. Wire shelves are oriented so that cross support bars are
facing down.
Place shelves on shelf clips making sure all corners are seated properly.
TEMPERATURE CONTROL
NOTE: All of these controls are preset at the factory to provide the desired air and product
temperatures inside of the units and require 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.
Both refrigerators and freezers have a manual thermostat located inside the metallic sealed box
near the top rear corner of the unit. This thermostat controls the compressor. Turning the
thermostat towards the higher numbers will make the unit colder. Lower numbers will make it
warmer. Turning the thermostat to the off or 0 position will turn the unit off. For combo units
(refrigerator and freezer), this thermostat controls the compressor based on freezer
temperature. Temperature in the refrigeration compartment is controlled by venting air from
the freezer compartment

7
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 units are 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.
-When loading the top shelf, avoid blocking the evaporator fan(s) (if installed). There should
be at least 4 inches of clearance below the fan(s) to allow proper air flow.
-Do not overload the unit. Maximum suggested load is about 75% of the chamber volume.
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
back 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.

8
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.
•3rd party thermometer is placed incorrectly. For proper
temperature monitoring, the thermometer should be
place in the middle of refrigerator.
PLEASE NOTE! Prior to shipment, each refrigerator and freezer
has been calibrated and tested at proper temperature range.
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.

9
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.
MOISTURE DURING THE SUMMER SEASON
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 TECHNICAL SERVICE, 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.

10
MAINTENANCE AND CLEANING
Freezers should be defrosted whenever ¼ to ½ inch of frost has accumulated. Use the
procedures in the defrosting section starting at the bottom of this page for best results.
Refrigerators require little maintenance but should be cleaned periodically to keep them running
efficiently. Use the cleaning agents and suggestions in this table for best results.
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.
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 (FREEZERS AND COMBO UNITS ONLY)
It is important to defrost and clean the freezer when ¼ to ½ inch of frost has accumulated. Frost
may tend to accumulate faster on upper part of the freezer due to warm, moist air entering the
freezer when the door is opened. Between defrost evolutions; you can minimize frost build-up
by using a plastic scraper to remove frost. Scrape with a pulling motion. Never use a metal
instrument to remove frost. Never use a damp cloth or wet hands as they will stick to the inside
surfaces when cold. When defrosting becomes necessary, disconnect freezer from power
source by opening the supply breaker to avoid electrical hazard. DO NOT ADJUST THE
THERMOSTAT. Remove the product and leave the door open while defrosting the freezer.

11
On upright units with a defrost drain – remove the drain
plug on the inside floor of the freezer by pulling straight
out. To access the external drain tube on models with a
base panel, first remove the two screws from the base
panel. Locate the drain tube near the left center under
the freezer. Place a shallow pan under the drain tube.
Defrost water will drain out. Check the pan occasionally
to ensure it does not overflow. A ½ inch garden hose
adaptor (available at most hardware stores) can be used
to drain the freezer directly into a floor drain. Replace the
drain plug when defrosting is complete so warm air does
not enter the freezer through the hole.
Defrosting tips – If the frost is soft, remove it with a
plastic scraper. If the frost is glazed and hard, fill deep
pans with hot water and place them inside on the freezer
bottom. Close the freezer door. Frost should soften in
about 15 minutes. Repeat this procedure as necessary
until all frost is removed.
After defrosting - replace the drain plugs (if applicable) and remove any towels, tools, or pans
from the interior of the freezer. Clean the interior and exterior of the unit using the cleaning
suggestions on the previous page. Plug the unit back in and restore it to service per the
operation section of this manual.

12
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
OR NOT INSURED, SHALL NOT EXCEED THE COST OF THE PRODUCT(S) GIVING RISE TO THE CLAIM OR
LIABILITY.

13
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.