Fisher Scientific Isotemp 20LFEEFSA Manual

Isotemp™ Freezer and Flammable
Materials Storage Refrigerator and
Freezer
Catalog No.
Freezer Model 20LFEEFSA
Flammable Materials Storage Freezer Model 20FFEEFSA
Flammable Materials Storage Refrigerator Model 20FREEFSA
Instruction and Operation Manual

IMPORTANT Read this instruction manual. Failure to follow the instructions in this manual can result in
damage to the unit, injury to operating personnel, and poor equipment performance.
CAUTION All internal adjustments and maintenance must be performed by qualified service personnel.
Material in this manual is for informational purposes only. The contents and the product it describes are
subject to change without notice. The Fisher Scientific™ channel makes no representations or warranties
with respect to this manual. In no event shall the Fisher Scientific channel be held liable for any damages,
direct or incidental, arising from or related to the use of this manual.
© 2018 Thermo Fisher Scientific Inc. All rights reserved.

Contents
Safety Information ....................................................... 1
Alert Signals ............................................................ 1
Intended Use .............................................................. 2
Unpacking .................................................................. 3
Visible Loss or Damage ........................................... 3
Concealed Loss or Damage .................................... 3
Performance Characteristics ....................................... 4
Temperature Ranges ............................................... 4
Electrical Requirements ........................................... 4
Installation ................................................................... 5
Electrical ................................................................. 5
Be Advised .............................................................. 5
Selecting a Location ................................................ 5
Leveling the Unit ...................................................... 5
Shelves ................................................................... 6
Electrical Connection ............................................... 6
Operation .................................................................... 7
Initial Startup ........................................................... 7
Temperature Control ............................................... 7
Condensate Disposal .............................................. 7
Material Compatibility .............................................. 7
Troubleshooting .......................................................... 8
Maintenance ............................................................... 9
Cabinet Cleaning ..................................................... 9
Condenser .............................................................. 9
Replacement Parts .................................................. 9

Warranty ..................................................................... 10

Isotemp Freezer and Flammable Materials Storage Refrigerator and Freezer Safety Information | 1
Safety Information
Your satisfaction and safety are important to the Fisher
Scientific channel and a complete understanding of this unit is
necessary to attain these objectives.
As the ultimate user of this apparatus, it is your responsibility
to understand its proper function and operational
characteristics. This instruction manual should be thoroughly
read and all operators given adequate training before
attempting to place this unit in service. Awareness of the
stated cautions and warnings, and compliance with
recommended operating parameters – together with
maintenance requirements – are important for safe and
satisfactory operation. The unit should be used for its
intended application; alterations or modifications will void the
Warranty.
This product is not intended, nor can it be used, as a sterile or
patient connected device. In addition, this apparatus is not
designed for use in Class I, II or III locations as defined by the
US National Electrical Code, unless otherwise noted.
Alert Signals
ON
OFF
Safety Alert: Important operating instructions.
To reduce the risk of injury or poor performance
of the unit. Read the user manual before putting
the equipment into operation.
DANGER: Indicates an immediately hazardous
situation, which if not avoided, will result in death
or serious injury.
WARNING: Indicates an immediately hazardous
situation, which if not avoided, will result in death
or serious injury.
CAUTION: Indicates an immediately hazardous
situation, which if not avoided, may result in
minor to moderate injury.
(No
symbol)
CAUTION: (Without Safety Alert Symbol)
indicates a situation that may result in property
damage.
Shock Hazard: Use of this equipment involves
power supplies which convert line voltage to low
voltage power. Do not modify or use power
supplies other than OEM equipment. Connection
of the power supply may require a properly
grounded receptacle. Potential for electrical
shock or equipment damage exists if
precautions are not followed.
Frost bite/ Low Temperature: Avoid contact
with cold freezer surfaces potential for cold
burns or skin sticking to cold surfaces.
DANGER RISK OF CHILD ENTRAPMENT
Before you throw away your old refrigerator or
freezer:
• Take off doors.
• Leave the shelves in place so that children
may not easily climb inside.
If the equipment is used in a manner not
specified by the manufacturer, the protection
provided by the equipment may be impaired.

2 | Intended Use Isotemp Freezer and Flammable Materials Storage Refrigerator and Freezer
Intended Use
The Refrigerators/Freezers described in this manual are for
professional use only. These products are intended for use in
research for the storage of samples or inventory in the
following temperature ranges:
Refrigerators +1°C to +12°C (+33.8°F to 53.6°F)
Freezers -12°C to -20°C (10.4°F to -4°F)
These are not considered medical devices and have therefore
not been registered with a medical device regulatory body
(e.g. FDA): that is, it has not been evaluated for the storage of
samples for diagnostic use or for samples to be reintroduced
to the body.
WARNING: Only Explosion Proof Units or
Flammable Material Storage Units are to be used
for the storage of flammable inventory/samples.
Note: Do not store Corrosive materials in this units. Any
damage which occurs due to storage of corrosives will not be
covered under warranty claims.

Isotemp Freezer and Flammable Materials Storage Refrigerator and Freezer Unpacking | 3
Unpacking
Save all packing material if apparatus is received damaged.
This merchandise was carefully packed and thoroughly
inspected before leaving our factory.
Responsibility for its safe delivery was assumed by the carrier
upon acceptance of the shipment; therefore, claims for loss
or damage sustained in transit must be made upon the carrier
by the recipient as follows:
Visible Loss or Damage
Note any external evidence of loss or damage on the freight
bill, or express receipt, and have it signed by the carrier’s
agent. Failure to adequately describe such external evidence
of loss or damage may result in the carrier’s refusing to honor
your damage claim. The form required to file such a claim will
be supplied by the carrier.
Concealed Loss or
Damage
Concealed loss or damage refers to loss or damage, which
does not become apparent until the merchandise has been
unpacked and inspected. Should either occur, make a written
request for the carrier’s agent within 15 days of the delivery
date; then file a claim with the carrier since the damage is the
carrier’s responsibility.
If you follow the above instructions carefully, we will guarantee
our full support of your claim to be compensated for loss from
concealed damage.
DO NOT – FOR ANY REASON – RETURN THIS UNIT
WITHOUT FIRST OBTAINING AUTHORIZATION.

4 | Performance Characteristics Isotemp Freezer and Flammable Materials Storage Refrigerator and Freezer
Performance Characteristics
Temperature Ranges
20FREEFSA: 1°C to 12°C (34°F to 54°F)
20LFEEFSA: -12°C to -20°C(-4°F to 10°F)
20FFEEFSA: -12°C to -20°C(-4°F to 10°F)
Electrical Requirements
Models 20LFEEFSA, 20FFEEFSA, 20FREEFSA:
115 Volts ±10%, 60 Hz, 5.0 Amps

Isotemp Freezer and Flammable Materials Storage Refrigerator and Freezer Installation | 5
Installation
Electrical
CAUTION: DO NOT REMOVE, under any
circumstance, the grounding prongs from the
3-prong power cord supplied with all units.
CAUTION: DO NOT USE electrical extension
cords that may result in voltage loss and possible
hazardous operation.
Flammable Material Storage and General Purpose units must
be connected to a grounded outlet matching the nameplate
and/or the information furnished in this manual. If you are not
sure about the outlet, you should contact a qualified
electrician for assistance. Explosion-Proof units must be
hardwired by a qualified electrician.
Explosion-Proof unit should always be connected to a
dedicated power source.
Be Advised
WARNING: Explosion-proof units do not come
with line cords. They require rigid conduit to be
run directly in order to seal off the fitting on
thermostat housing. This should be done by a
licensed electrician and follow all local and
electrician and follow all local electrical codes. If
any questions pertaining to electrical safety arise,
please refer to article 501 of the National
Electrical Code.
WARNING: UNLESS UNIT IS SPECIFICALLY
DESIGNED FOR COMBUSTIBLE OR
FLAMMABLE ATMOSPHERES. DO NOT USE IN
THE PRESENCE OF FLAMMABLE OR
COMBUSTIBLE MATERIALS OR EXPLOSIVE
GASES. DO NOT USE IN THE PRESENCE OF
PRESSURIZED OR SEALED CONTAINERS—
FIRE OR EXPLOSION MAY RESULT CAUSING
DEATH.
CAUTION: BEFORE CONNECTING THE FINAL
POWER SUPPLY, CHECK THE ELECTRICAL
CHARACTERISTICS OF THE UNIT NAMEPLATE
TO SEE THAT IT IS IN AGREEMENT WITH THE
POWER SUPPLIED. IN ADDITION, POWER
SHOULD BE WIRED TO THE UNIT ACCORDING
TO THE ELECTRICAL SCHEMATIC AND ALL
APPLICABLE CODES. ONLY QUALIFIED
ELECTRICIANS SHOULD WORK ON THE
ELECTRICAL PORTION OF ANY UNIT
INSTALLATION.
CAUTION: STORAGE BY USER OF ANY
MATERIALS IN THE PRODUCT THAT MAY
CAUSE A DETERIORATION OF THE PRODUCT
SHALL BE DEEMED TO CONSTITUTE
ABNORMAL AND IMPROPER USAGE OF THE
PRODUCT FOR PURPOSES OF THIS
WARRANTY.
WARNING: RISK OF CHILD ENTRAPMENT!
Before you discard your old refrigerator or
freezer:
• Remove door(s),
• Leave the shelves in place so that children
may not easily climb inside.
Selecting a Location
Choose a location for the refrigerator freezer that will provide
at least three inches of clearance between the cabinet and
any adjacent vertical surface at the sides, one inch at the
bottom, 3 inches at the rear and top of the unit. The
appropriate electrical power must be available.
Leveling the Unit
The refrigerator/freezer must be level in order to provide
adequate condensate drainage as well as proper door
alignment and operation. The refrigerator should be in its final
operating location and set so that it is firmly positioned on the
floor.

6 | Installation Isotemp Freezer and Flammable Materials Storage Refrigerator and Freezer
The leveling feet can be adjusted so the front of the unit is
slightly higher than the rear – this will allow the door to close
easily if it is left halfway open.
Shelves
20LF & FF models:
Shipped inside each cabinet are four fixed wire shelves which
also serve as part of evaporator coils.
20FR models:
Shipped inside each cabinet are four shelves, one shelf is a
sheet metal shelf & others are wired shelves that are fixed.
Electrical Connection
CAUTION: Be sure that the power supply is the
same voltage that is specified on the refrigerator’s
data plate.
WARNING: For personal safety this unit must be
properly grounded.
CAUTION: Do not use an extension cord. Use of
an ungrounded cord or an over-loaded circuit
VOIDS the compressor warranty.
WARNING: DO NOT under any circumstances
cut or remove the third (ground) prong from the
power cord. DO NOT use a two-prong adapter
plug. Where a two-prong wall receptacle is
encountered, it is the personal responsibility and
obligation of the user to have it replaced with a
properly grounded three-prong receptacle.
Determine the total amount of current presently being used by
other apparatus connected to the circuit that will be used by
this refrigerator/freezer. It is critical that this added current
demand and other equipment on this circuit not exceed the
rating of the fuse or circuit breaker in use.
The frequency and nominal voltage requirements for the unit
are specified on the data plate, which is located on the
interiors upper left side. Only plug the unit into a power source
that meets these requirements. Low line voltage is often the
cause of service complaints. With the unit running, check that
the line voltage is within ±10% of that specified on the data
plate.
The power cord of this instrument is equipped with a three
prong (grounding) plug (NEMA 5-15P). This plug mates with a
standard three prong (grounding) wall receptacle
(NEMA 5-15R) to minimize the potential of an electrical shock
hazard. The customer should have the wall receptacle and
circuit checked by a qualified electrician to verify the
receptacle is properly grounded and is connected to a
minimum 15 amp service.

Isotemp Freezer and Flammable Materials Storage Refrigerator and Freezer Operation | 7
Operation
Initial Startup
Turn power on and verify that the condenser fan is running.
This model has a condenser fan located on the condensing
unit on top of the cabinet.
Temperature Control
To adjust the interior temperature down, simply turn the
thermostat knob clockwise. For operation above an altitude of
3000 ft., have the thermostat adjusted by a technician.
Condensate Disposal
WARNING: If the unit is tilted in excess of 30
degrees, do not apply electrical power for a
minimum of 12 hours.
WARNING: Do not heat any substance above a
temperature which will cause it to emit toxic
fumes—death or severe injury may result.
20LF & FF models:
The condensate drain is at the center rear of the interior floor.
The condensate drain tube is connected to this drain and is
attached to the left front bottom of the unit behind the front
sheet metal. Unhook and place the drain tube into a suitable
pan and remove the drain plug. Turn the power to the unit to
the off position (O) and allow the unit to defrost.
20FR models:
Equipped with a drain pan that collects condensate during
manual defrost. This drain pan takes advantage of the heat
generated by the compressor to evaporate condensate
water, so there is no need to empty the pan during each
defrost cycle.
Material Compatibility
The interior cabinet of this unit is constructed of epoxy-coated
steel. Care must be exercised when determining which
chemicals may be stored in the refrigerator and freezer
sections and which type of storage materials should be
employed.
ABS Plastic deteriorates when exposed to, but not limited to,
the following:
• Aliphatic Hydrocarbons
• Aromatic Hydrocarbons
• Fully and Partially Halogenated Hydrocarbons
• Alcohols Monohydric
• Phenols
• Ketones
• Esters
• Ethers
• Organic Acids (concentrates and dilute) and
• Concentrated Oxidizing Acids.
This information is taken from Plastics Edition 8
Thermoplastics and Thermosets published by D.A.T.A. and
The International Plastics Selector, Inc. Cordura Companies
9889 Willow Creek Road P.O. Box 26637
San Diego, California 92126.

8 | Troubleshooting Isotemp Freezer and Flammable Materials Storage Refrigerator and Freezer
Troubleshooting
This table is intended to assist in resolving user-correctable
Refrigerator problems by relating symptoms to their likely
causes. If service beyond the scope of this table is required,
contact your nearest Fisher Scientific channel Service Office.
Symptom Probable cause of Problem Action
Does Not Run Unit Unplugged
Blown fuse or tripped circuit breaker
Plug in Unit
Check fuse or circuit breaker at breaker box
Runs Continuously Frost buildup on refrigeration coils Defrost unit
Clicking Sound The compressor is equipped with a thermal
protector.This device shuts off the compressor
when it becomes too hot. A clicking sound
occurring about every 30 seconds indicates this
protector is working
Unplug unit for 1 hour. Plug in and try running
again. If the unit doesn't begin to run, call for
service.
Insufficient Cooling Thermostat set too high
Unit frosted
Reduce thermostat setting
Defrost unit

Isotemp Freezer and Flammable Materials Storage Refrigerator and Freezer Maintenance | 9
Maintenance
Cabinet Cleaning
WARNING: When servicing the unit, disconnect
from the electrical power source.
CAUTION: Do not use any type of abrasive such
as steel wool, or fluids such as gasoline,
Naphtha, and thinner.These materials could be
harmful to aluminum, plastic materials, door
gasket, and painted surfaces.
The cabinet interior should be cleaned frequently. Any spilled
liquid should be wiped off immediately. Stains resulting from
some spills can be permanent if not quickly removed. The
most convenient time to clean the interior is after defrosting.
The cabinet exterior should be cleaned occasionally. A mild
detergent and lukewarm water or a solution of bicarbonate of
soda (1 tablespoon per gallon of water) is recommended for
cleaning the interior and exterior of the cabinet. All surfaces
should be rinsed and thoroughly dried.
Condenser
The condenser coil is located behind the sides and rear
exterior panel. These surfaces may be warm to the touch.
This is necessary to the operation of the refrigeration
equipment and is normal.
Replacement Parts
For technical service, call 1-800-438-4851

10 | Warranty Isotemp Freezer and Flammable Materials Storage Refrigerator and Freezer
Warranty
Laboratory instruments and equipment manufactured by
Fisher Scientific Company L.L.C. – Laboratory Equipment
Division (hereinafter called “the Company”) are warranted only
as stated below.
Subject to the exceptions and upon the conditions specified
below, the Company agrees, at its election, to correct by
repair, by replacement, or by credit to the purchaser, any
defect of materials or workmanship which develops within
one year (13 months for refrigerator and freezer products)
from the date of purchase by the original purchaser by the
Company or by an authorized dealer of the Company
provided that investigation or factory inspection by the
Company discloses that such defect developed under normal
and proper use.
The exceptions and conditions mentioned above are
the following:
a. The Company makes no warranty concerning
components or accessories not manufactured by it, such
as tubes, batteries, etc. However, in the event of the
failure of any component or accessory not manufactured
by the Company, the Company will give reasonable
assistance to the purchaser in obtaining from the
respective manufacturer whatever adjustment is
reasonable in the light of the manufacturer’s own
warranty.
b. The Company shall be released from all obligations under
its warranty in the event repairs or modifications are made
by persons other than its own service personnel or
authorized dealer personnel unless such repairs by others
are made with the written consent of the Company.
c. THE COMPANY MAKES NO WARRANTY OF
MERCHANTABILITY, FITNESS FOR ANY
PARTICULAR PURPOSE, OR ANY OTHER
WARRANTY, EXPRESS OR IMPLIED, EITHER IN
FACT OF BY OPERATION OF LAW,…STATUTORY
OR OTHERWISE.
d. The above warranty and the above obligations to repair,
replace, or credit are complete and exclusive and the
Company expressly disclaims liability for lost profits or for
special, indirect, incidental, consequential, or exemplary
damages of any nature whether attributable to contract,
warranty, negligence, strict liability, or otherwise even if
the Company has been advised of the possibility of such
damages.
e. Representations and warranties made by any person,
including dealers and representatives of the Company,
which are inconsistent or in conflict with the foregoing
warranty shall not be binding upon the Company unless
reduced to writing and signed by an officer of the
Company.

Important
For your future reference and when contacting the factory,
please have the following information readily available:
Model Number:
Serial Number:
Date Purchased:
The above information can be found on the dataplate
attached to the equipment. If available, please provide the
date purchased, the source of purchase (manufacturer or
specific agent/rep organization), and purchase order number.
If you need assistance:
The Fisher Scientific brand products are backed by a global
technical support team ready to support your applications.
We offer cold storage accessories, including remote alarms,
temperature recorders, and validation services. Visit
fishersci.com or call:
SALES DIVISION
Phone [phone]
1-800-252-7100
FAX [phone]
LABORATORY PARTS and SERVICE
Phone [phone]
FAX [phone]
TECHNICAL SUPPORT
Phone [phone]

© 2018 Thermo Fisher Scientific Inc. All rights reserved.
Trademarks used are owned as indicated at fishersci.com/trademarks.
In the United States:
For customer service, call 1-800-766-7000
To fax an order, use 1-800-926-1166
To order online: fishersci.com
Fisher Scientific Company L.L.C.
275 Aiken Road
Asheville, NC 28804
United States
326745H01 Rev.C July 2018