Fisher Scientific Isotemp 153 Original instructions

Isotemp®Explosion-Proof
Refrigerators and Freezers
Refrigerator Model 153, 153HK
Freezer Model 150, 150HK
104354 • 9/15/06

2
Ta ble of Contents
Safety Information ..............................................................................................................................................3
Alert Signals..................................................................................................................................................3
Unpacking ..........................................................................................................................................................4
Visible Loss or Damage................................................................................................................................4
Concealed Loss or Damage ........................................................................................................................4
Installation ..........................................................................................................................................................5
Selecting a Location ....................................................................................................................................5
Leveling The Unit ..........................................................................................................................................5
Shelves ........................................................................................................................................................5
Electrical Connection ....................................................................................................................................5
Operation ............................................................................................................................................................6
Initial Startup ................................................................................................................................................6
Temperature Control ....................................................................................................................................6
Condensate Disposal....................................................................................................................................6
Material Compatibility ..................................................................................................................................7
Tr oubleshooting ..................................................................................................................................................8
Maintenance........................................................................................................................................................9
Cabinet Cleaning ..........................................................................................................................................9
Condenser ....................................................................................................................................................9
Performance Characteristics ............................................................................................................................10
Temperature Ranges ..................................................................................................................................10
Temperature Stability ..................................................................................................................................10
Electrical Requirements..............................................................................................................................10
Replacement Parts............................................................................................................................................10
Warranty ............................................................................................................................................................12

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Your satisfaction and safety are important to Fisher
Scientific and a complete understanding of this unit is
necessary to attain these objectives.
As the ultimate user of this apparatus, it is your responsi-
bility to understand its proper function and operational
characteristics. This instruction manual should be thor-
oughly 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 apparatus is designed for use in Class I, II or III loca-
tions as defined by the National Electrical Code, unless
otherwise noted.
Safety Information
Warning
Warnings alert you to a possibility of
personal injury.
Caution
Cautions alert you to a possibility of
damage to the equipment.
Note
Notes alert you to pertinent facts and
conditions.
Hot Surface
Hot surfaces alert you to a possibility
of personal injury if you come in con-
tact with a surface during use or for a
period of time after use.
Alert Signals
Warning
As a routine laboratory precaution,
always wear safety glasses when
working with this apparatus.
DANGER:RISK OF CHILD ENTRAP-
MENT. BEFORE YOU THROW AWAY
YOUR OLD REFRIGERATOR OR
FREEZER:
•TAKE OFF DOORS
•LEAVE THE SHELVES IN THE
PLACE SO THAT CHILDREN MAY
NOT EASILY CLIMB INSIDE.

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Unpacking
Save all packing material if apparatus is received dam-
aged. This merchandise was carefully packed and thor-
oughly 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 exter-
nal 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 compensat-
ed for loss from concealed damage.
DO NOT – FOR ANY REASON – RETURN THIS UNIT
WITHOUT FIRST OBTAINING AUTHORIZATION

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Selecting a Location
Choose a location for the refrigerator that will provide at
least three inches of clearance between the cabinet and
any adjacent vertical surface at the sides and four inches
at the rear. Four inches of clearance is required above the
top. Appropriate electrical power must be available. Attach
the refrigerator to the facility’s electrical supply as directed
by the National Electrical Code Article 440.
Leveling the Unit
This refrigerator must be level in order to provide ade-
quate condensate drainage as well as proper door align-
ment and operation. The refrigerator should be in its final
operating location and set so that it is firmly positioned on
the floor.
After discarding crating screws and wood base, level the
freezer side to side and front to back by adjusting the
supplied leveling feet (Part Number - SPN 105192). 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
Shipped inside each cabinet are four fixed shelves which
also serve as part of the evaporator coil.
Electrical Connection
Determine the total amount of current presently being
used by other apparatus connected to the circuit that will
be used by this refrigerator. 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 door’s exterior. Only supply this unit with an electrical
source that meets these requirements. Low line voltage is
often the cause of service complaints. With the unit run-
ning, check that the line voltage is within ±10% of that
specified on the data plate.
Installation
Caution
Be sure the voltage supplied to the
refrigerator/freezer is equal to that
specified on the data plate.
Warning
For personal safety, this unit must be
properly grounded before use.
Caution
DO NOTunder any circumstances,
attach a line cord to this unit. This
refrigeration equipment is intended for
a hard-wire connection to the facility
power supply.

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Operation
Initial Startup
This unit is not equipped with a power switch. Turn the
applicable facility circuit breaker off during installation.
Simply turn power on the facility’s circuit that supplies the
unit.
Temperature Control
To adjust the interior temperature down, simply turn the
thermostat knob clockwise. The adjustment knob is locat-
ed behind the front cover of the blue temperature control
unit that is on the top exterior on the cabinet. Remove the
two screws with a flat blade screw driver for access. For
operation above an altitude of 3000 ft., have the thermo-
stat adjusted by a technician.
Condensate Disposal
The condensate drain is at the center 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 temper-
ature control up or remove power to the unit and allow the
unit to defrost.
Warning
If the unit is tilted in excess of 30
degrees, do not apply electrical power
for a minimum of 12 hours.

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
Aluminum Alloys are susceptible to corrosion when
exposed to but not limited to most inorganic acids, bases
and salts with a pH outside of their passive range of pH 4
to 9. It is also important to recognize that the compatibility
of aluminum alloys with mixtures of organic compounds
cannot always be predicted from their compatibility with
each of the compounds. For example, some aluminum
alloys are corroded severely in mixtures of carbon tetra-
chloride and methyl alcohol, even though they are resist-
ant to each compound alone. This information is taken
from Corrosion and Corrosion Protection Handbook
Second Edition
Published by
Marcel Dekker, Inc.
270 Madison Ave.
New York, NY 10016
OPERATION
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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
Service Office.
Troubleshooting
Symptom Probable Cause Action
Does Not Run Unit Unplugged Plug in Unit
Blown fuse or tripped circuit Check fuse or circuit breaker at
breaker breaker box
Runs Continuously Frost buildup on refrigeration coils Defrost unit
Clicking Sound The compressor is equipped Disconnect power. Allow refrigeration
with a thermal protector. system time to equalize, then try
This device shuts off the again. If problem persists, call for
compressor when it service.
becomes too hot. A clicking
sound occurring about
every 30 seconds indicates
this protector is working
Insufficient Cooling Thermostat set too high Reduce thermostat setting
Unit frosted Defrost unit

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Cabinet Cleaning
The cabinet interior should be cleaned frequently. Any
spilled liquid should be wiped off immediately since stains
resulting from some spills could be permanent if not
quickly removed. The most convenient time to clean the
interior is after defrosting.
The exterior of the cabinet should be cleaned occasional-
ly. A mild detergent and lukewarm water or 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 top
exterior panel. These surfaces may be warm to the touch.
This is necessary to the operation of the refrigeration
equipment and is normal.
Maintenance
Caution
Do not use any type of abrasive such
as steel wool or fluids such as gaso-
line, Naphtha and thinner. These mate-
rials could be harmful to aluminum,
plastic materials, door gasket and/or
painted surface.
Caution
When servicing the unit, disconnect
from the electrical power source.

Performance Characteristics
Temperature Ranges
150: - 20°C to -12°C (- 4°F to +10°F)
153: 2°C to 10°C ( 36°F to 50°F)
Temperature Stability
at 4°C: +4°C
at -20°C : +4°C
Electrical Requirements
13-986-150 115 Volts ±10%, 60 Hz, 5.0 Amps
13-986-150HK 220 Volts ±10%, 50 Hz, 5.0 Amps
13-986-153 115 Volts ±10%, 60 Hz, 5.0 Amps
13-986-153HK 220 Volts ±10%, 50 Hz, 5.0 Amps
Replacements Parts
Replacement starter kit for Model HK (220V) only:
SPN106706
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Performance Characteristics
and Replacement Parts