Fisher Scientific Isotemp 148 User manual

Instruction Manual
Fisher Scientific Isotempâ
General Purpose
and
Flammable Materials Storage
Refrigeration
GP Freezer Model 148, 148HK
FMS Freezer Model 149, 149HK
FMS Refrigerator Model 152, 152HK

Service Division (Repairs): 1-800-395-5442
Technical Support: 1-800-926-0505
Customer Service: 1-800-766-7000
Prior to calling for service, have the following information readily available:
CatalogNumber:
Serial Number:
DateofPurchase:
The catalog number and serial number can be found on the data plate located
on the left interior wall of the unit.

Table of Contents Isotemp GP and FMS Refrigertors
Introduction......................................................................................................................................1
Unpacking.........................................................................................................................................1
Visible Loss or Damage.................................................................................................................1
Concealed Loss or Damage ...........................................................................................................2
Installation........................................................................................................................................2
Selecting a Location.......................................................................................................................2
Leveling The Unit..........................................................................................................................2
Shelves ...........................................................................................................................................3
Electrical Connection.....................................................................................................................3
Operation..........................................................................................................................................4
Initial Startup .................................................................................................................................4
Temperature Control......................................................................................................................4
Condensate Disposal......................................................................................................................4
Material Compatibility....................................................................................................................5
Trouble Shooting Table...................................................................................................................6
Maintenance .....................................................................................................................................7
Cabinet Cleaning............................................................................................................................7
Condenser ......................................................................................................................................7
Performance Characteristics ..........................................................................................................8

Page 1 of 8 IsotempâGP & FMS Refrigeration
Introduction
Unpacking
Visible Loss or Damage
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 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.
WARNING: As a routine laboratory precaution,
always wear safety glasses when working with this apparatus.
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 National Electrical Code, unless otherwise noted.
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:
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.

Page 2 of 8
IsotempâGP & FMS Refrigeration
Concealed Loss or Damage
Installation
Selecting a Location
Leveling The Unit
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
Choose a location for the refrigerator that will provide at least
four inches of clearance between the cabinet and any adjacent
vertical surface at the sides and four inches at the rear.
Twelve inches of clearance is required above the top surface
of the refrigerated cabinet. Appropriate electrical power must
be available. Locate the refrigerator within eight feet of the
power outlet so that no extension cord is required.
The refrigerator 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.
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 - SPN105192). The
leveling feet can be adjusted so the front of the unite is
slightly higher than the rear – this will allow the door to close
easily if it is left halfway open.

Page 3 of 8 IsotempâGP & FMS Refrigeration
Shelves
Electrical Connection
Shipped inside each cabinet are four fixed shelves which also
serve as part of the evaporator coil.
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.
CAUTION: Be sure that the power supply is the same
voltage that is specified on the refrigerator’s data plate.
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.
WARNING: For personal safety this unit must be
properly grounded.
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.

Page 4 of 8
IsotempâGP & FMS Refrigeration
Operation
Initial Startup
Temperature Control
Condensate Disposal
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.
CAUTION: Do not use an extension cord. Use of an
ungrounded cord or an overloaded circuit VOIDS the
compressor warranty.
WARNING: If the unit is tilted in excess of 30
degrees, do not apply electrical power for a minimum of 12
hours.
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.
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.
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.

Page 5 of 8 IsotempâGP & FMS Refrigeration
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 tetrachloride and
methyl alcohol, even though they are resistant 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

Page 6 of 8
IsotempâGP & FMS Refrigeration
Trouble Shooting Table
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.
Symptom Probable Cause 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
Uplug unit for 1
hr. Plug in and try
running again. If
the unit doesn’t
begin to run, call
for service.
Insufficient Cooling Thermostat set to
high
Unit frosted
Reduce thermostat
setting
Defrost unit

Page 7 of 8 IsotempâGP & FMS Refrigeration
Maintenance
Cabinet Cleaning
Condenser
CAUTION: When servicing the unit, disconnect from
the electrical power source
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.
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 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.