Fisher Scientific Isotemp 13-986-223F User manual

Isotemp Laboratory Freezers
Freezer Models
13-986-223F/FA/FR, 13-986-223FHK/223FRHK/223FAHK
13-986-247F/FA/FR, 13-986-247FHK/247FRHK/247FAHK
13-986-274F/FA/FR, 13-986-274FHK/274FRHK/247FAHK
102999 • Rev. A

2
Table of Contents
Safety Information ..............................................................................................................................................3
Alert Signals..................................................................................................................................................3
Unpacking ..........................................................................................................................................................4
Visible Loss or Damage................................................................................................................................4
Concealed Loss or Damage ........................................................................................................................4
Packing List ..................................................................................................................................................4
Performance Characteristics ..............................................................................................................................5
Temperature Ranges ....................................................................................................................................5
Temperature Stability ....................................................................................................................................5
Electrical Requirements................................................................................................................................5
Installation ..........................................................................................................................................................6
Selecting a Location ....................................................................................................................................6
Casters..........................................................................................................................................................6
Leveling the Unit ..........................................................................................................................................6
Shelves ........................................................................................................................................................6
Shelf Installation ..........................................................................................................................................7
Chart Recorder ............................................................................................................................................7
Compressor Mounts ....................................................................................................................................7
Electrical Connection ....................................................................................................................................9
Operation ..........................................................................................................................................................10
Control Layout ............................................................................................................................................10
Temperature Controller ..............................................................................................................................10
Setting the Temperature..............................................................................................................................11
Units Select ................................................................................................................................................11
Calibration Offset ........................................................................................................................................11
Hold-Off Time..............................................................................................................................................12
Error Codes ................................................................................................................................................12
Interior Lights ..............................................................................................................................................12
Defrost System ..........................................................................................................................................13
Troubleshooting ................................................................................................................................................14
Maintenance......................................................................................................................................................15
Cabinet Cleaning ........................................................................................................................................15
Cleaning the Condenser ............................................................................................................................15
Condensate Evaporator Pan ......................................................................................................................15
Replacement Parts............................................................................................................................................16
Wiring Diagrams................................................................................................................................................17
Warranty ............................................................................................................................................................20

3
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 product is not intended, nor can it be used, as a ster-
ile or patient connected device. In addition, this appara-
tus is not designed for use in Class I, II or III locations 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 THATCHILDREN MAY
NOT EASILY CLIMB INSIDE.

4
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
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 compensat-
ed for loss from concealed damage.
DO NOT – FOR ANY REASON – RETURN THIS UNIT
WITHOUT FIRST OBTAINING AUTHORIZATION
Packing List
The following items are packed in the envelope located
inside the freezer chamber. If any of the following items
are not present, report the missing item to your local
Fisher representative.
1. Warranty Card
2. This Instruction Manual
3. Door Lock Key
4. Key Switch Key
5. Chart Recorder Instructions
(13-986-2xxFR/FA versions only)
6. Charts

Temperature Ranges
-30° to 0°C (-22° to 32°F)
Temperature Stability
±4°C
Electrical Requirements
Catalog Number Volts (±10%) Amps Hz
13-986-223F/FA/FR 115 10.0 60
13-986-247F/FA/FR 230 10.5 60
13-986-274F/FA/FR 230 16.0 60
13-986-223FHK/FRHK/FAHK 220 6.2 50
13-986-247FHK/FRHK/FAHK 220 6.2 50
13-986-274FHK/FRHK/FAHK 220 6.2 50
5
Performance Characteristics

6
Selecting a Location
Choose a location for the freezer that will provide at least
three inches of clearance between the cabinet and any
adjacent vertical surface at the sides and the rear.
Appropriate electrical power must be available. Locate
the freezer within six feet of the power outlet so that no
extension cord is required.
Casters
Each Isotemp®Freezer is shipped with casters which are
packaged separately and fastened inside the cabinet.
Threaded legs are available as an option for Isotemp‚
Laboratory Freezers. Legs and casters screw directly into
the weld nut provided in each corner of the base.
Leveling the Unit
Isotemp Freezers come with four casters, which thread
into the base of the unit, one in each corner. Use the
wrench provided to thread the casters completely into the
base of the unit. Back the casters in or out until the unit
is level and resting on all four casters. See figure 1.
Level the cabinet front to rear and side to side using the
leg inserts.
Installation
Note
The freezer must be level in order to
provide adequate condensation
drainage as well as proper door
alignment and operation. The freez-
er should be in its final operating
location and set so that it is firmly
positioned on the floor.
Freezer
Base
Thread casters directly
to base at four corners.
Figure 1
Tighten using
wrench provided.
Warning
If the unit is tilted in excess of 30
degrees, do not apply electrical power
for a minimum of 12 hours.

Shelves
Included are three (3) epoxy coated wire shelves per door
opening. Also included are three epoxy coated filler
shelves for the two and three door models. Shelf spacing
is adjustable on half-inch centers with the enclosed shelf
supports to suit requirements. Replacement shelves are
available individually. See Replacement Part in this manu-
al.
Shelf Installation
For each shelf, insert four shelf supports at equal heights
onto the pilasters as shown in Figure 2 on the following
page. Shelf supports (2) with 1/2” long tabs are placed in
the two rear pilasters while the 1/4” shelf supports are
placed on the two front pilasters. Place shelf on top of
the shelf supports as shown on Figure 3.
Chart Recorder
Provided in the packing envelope is a set of instructions
for setting up and using the optional chart recorder and
alarm (when applicable). Freezer versions ending in A or
R will be equipped with the chart recorders. Read the
instruction sheet thoroughly before use.
Compressor Mounts
The compressor is secured with steel banding to prevent
damage during shipping. Before operating the compres-
sor, remove the banding. Removing the banding will
allow free movement of the compressor while the freezer
is running. After cutting the banding, verify the drain tube
is not on top of the compressor foot.
7
INSTALLATION
Caution
Remove the banding around the com-
pressor before operation. Verify the
drain tube is not on top of the of the
compressor foot.

8
INSTALLATION
Figure 2
Insert four shelf supports
into pilasters for each shelf.
Figure 3
Tab Length
Shelf Support

Electrical Connection
The frequency and nominal voltage requirements for the
unit are specified on the data plate, which is located on
the interiors upper left side. Plug the unit into a power
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.
The power cord of the single door model is equipped with
a NEMA 5-20P three-prong (grounding) plug which must
mate with a standard NEMA 5-20R three-prong (ground-
ing) wall receptacle. The customer should have the wall
receptacle and circuit checked by a qualified electrician to
verify the receptacle is properly grounded and is connect-
ed to 20 amp service minimum.
The power cord for the 13-986-247F/FA/FR and the 13-
986-274F/FA/FR is equipped with a NEMA L14-20P four
prong (grounding) plug which must mate with a standard
NEMA L14-20R four-prong (grounding) receptacle. The
customer should have the wall receptacle and circuit
breaker checked by a qualified electrician to verify the
receptacle is properly grounded and connected to a 20
amp service minimum. CAUTION: Catalog numbers end-
ing in HK are international 3-Wire systems and should not
be confused with 230V domestic units which are 4-Wire
systems. Consult a qualified electrician before powering
this unit.
9
INSTALLATION
Caution
Insufficient line voltage is often the
cause of compressor start-up failure,
especially in 115V freezers. It is
strongly recommended that a dedicat-
ed 20A circuit, conforming to the
National Electrical Code, be used for
powering the freezer.
Caution
Be sure that the power supply is the
same voltage that is specified on the
freezer’s data plate.
Warning
For personal safety this unit must be
properly grounded.
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 respon-
sibility 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 warran-
ty.

Begin operation by inserting the key into the key switch
located on the header panel. The key switch is packed
inside the envelope, which is shipped in the freezer
chamber. Turning the key switch to the ON ( | ) position
will energize the compressor and condenser fans and the
digital controller. All models delay the evaporator fans
from starting until the evaporator temperature has pulled
down to 25°F. When the evaporator fans begin running, a
switch behind each door will stop the fans while the door
is opened. This is to minimize loss of cold air while the
door(s) are open.
Control Layout
Before operation, become familiar with the freezer con-
trols located on the header panel. A layout of the controls
is given below:
Temperature Controller
The digital temperature controller is located on the center
of the header panel (See Figure 3). When the unit is ini-
tially turned on, the display will indicate current chamber
temperature. The temperature units will be indicated by
the °C or °F LED located just to the right of the tempera-
ture display. The freezer is factory set to -15°C.
10
Operation
Warning
This product is NOT approved for stor-
age of flammable or explosive materi-
als. Also, it is NOT approved for use
in hazardous locations containing
explosive atmospheres.
Digital
Display
Mode LED
Menu Key Pad
Up-Arrow Key Pad
Down-Arrow Key Pad Light Switch Key Switch (On/Off)
Units
Figure 3

Setting the Temperature
To change the set temperature, press and release the
Menu keypad once. The display will flash SP and the
Mode LED will be illuminated. The last set temperature
will then be shown in the display. To change the tempera-
ture, press the UP or DOWN arrow key. The adjustable
temperature range is 0 to -30°C (32 to -22°F). When the
desired set temperature is displayed, press the Menu key-
pad to enter the set temperature and activate the Units
Select menu.
Units Select
The second menu selects the units. The freezer control
displays temperature in °C or °F. The factory setting is
°C. Starting from the temperature display mode (Mode
LED off), press the Menu key twice. The current temper-
ature units are displayed. To switch between units, press
the UP or DOWN arrow key to change to the desired
units, then press the Menu key to select. The desired
unit LED will be displayed on the right of the temperature
display.
Calibration Offset
In the event the freezer needs calibrated, a simple routine
is available to adjust the display and control point to a ref-
erence standard. To set the temperature offset, press
and hold the Menu keypad for 5 seconds. The display
will flash oS (offset) followed by the last temperature off-
set value. The factory setting is 0. To change the offset
value, press the UP or DOWN arrow key, then press the
Menu key. The value shown in the display will be added
to the previous temperature reading. The maximum off-
set value is ±5°C (±9°F).
For Example:
The freezer has been operating at -15°C for 30 minutes.
The display indicates -15°C but a reference thermometer
in the chamber indicates -17°C. The operator presses
and holds the Menu keypad for 5 seconds and changes
the offset value from 0 to -2. The Menu key is pressed
until the Mode LED goes out. Now the display indicates a
11
OPERATION

chamber temperature of -17°C and the system begins to
control to the desired temperature of -15°C (as long as
the 3 min. time delay has expired).
Allow an additional 30 to 40 minutes for the freezer to
again stabilize. If the display is still inaccurate, repeat the
calibration offset procedure.
Hold-Off Time
Following the offset menu is the hold-off (Ho) menu. The
display will momentarily flash “Ho”, followed by a number.
The number shown is the delay time in minutes between
compressor activations. Use the UP/DOWN keypads to
change the value.
Increasing the hold-off time will reduce the number of
compressor activations, thus decreasing the amount of
ice build up on the evaporator and reduce the defrost
time. NOTE: Increasing the Hold-Off time should never
substitute the automatic defrost cycle.
Error Codes
Error codes indicate when the controller is sensing a
problem. A description of each is given below. See the
Troubleshooting Table for additional information on error
codes.
E1 Open sensor.
E2 Under temperature. Temperature at sensor is
less than -36°C.
E3 Over temperature. Temperature at sensor is
greater than 37°C.
Interior Light(s)
Each cabinet has interior light(s) activated by a door
switch(s). The lights are automatically turned on or off by
opening or closing the door(s). Replace with 40 watt
refrigerator grade bulb.
12
OPERATION
Note
While in any of the controller mode
setups (temp set, units or calibration
offset), the controller will wait 15
seconds for a value to be entered. If
there is no keypad operation within
the 15-second time window, control
will automatically revert to the tem-
perature display mode and the Mode
LED will turn off.

Defrost System
The defrost heaters are controlled by a defrost timer. The
timer is a 24 hr. dial timer located in the wire termination
box behind the header panel. The timer is factory set to
provide four defrost cycles per 24 hour period (at 6 and
12 pm and am). The defrost heaters are deactivated by a
thermal switch or by the defrost timer limit.
13
OPERATION
Note
The freezer will not cool while in the
defrost mode, even if the Cool LED is
illuminated.
Caution
Changes to the defrost cycle are not
recommended and void the warranty.

Technical Support: 1-800-438-4851
Customer Service: 1-800-438-4851
Prior to calling for service, have the following information readily available:
Catalog Number: ________________________________________
Serial Number: _________________________________________
Date of Purchase: _______________________________________
The catalog number and serial number can be found on the data plate located on the left interior wall of the
unit.
14
This table is intended to assist in resolving user-correctable freezer problems by relating symptoms to their
likely causes. If service beyond the scope of this table is required, contact service at 1-800-438-4851.
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, increase Ho time, try
does not cool. again.
Clicking sound. The compressor is equipped Disconnect power and call
with a thermal protector. for service.
This device shuts off the
compressor when it
becomes too hot. A clicking
sound occurring about
every 30 seconds indicates
this protector is working.
Insufficient cooling. Set temp is too high. Reduce temperature setting. Verify
Cool LED is on.
Condenser coil dirty. Clean condenser coil with a vacuum
cleaner.
Incorrect calibration offset. Perform calibration. See Calibration
Offset.
Relay (K1) is not functioning. Replace relay.

15
Cabinet Cleaning
The exterior of the freezer cabinet should be cleaned with
a solution of mild soap and water. Do not use caustic
soap or abrasive cleaners since these may damage the
cabinet finish. If stainless steel surface becomes discol-
ored, scrub by rubbing only in the direction of the finished
grain. The anodized aluminum interior and exterior
should be cleaned with mild soap and water. Do not use
steel wool.
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.
Amild detergent and lukewarm water or a solution of
Bicarbonate of Soda (1 tablespoon per gallon of water) is
recommended for cleaning the interior or exterior of the
cabinet. Surfaces should be rinsed and dried carefully
and thoroughly.
Cleaning the Condenser
For efficient operation, it is recommended that the con-
denser coil and fan be cleaned every 4 to 6 months. The
condenser coil is located behind the vented part of the
header panel (left side). Remove the header panel for
access. Vacuum clean the front surface of the coil thor-
oughly, or direct forced air through the condenser from
the rear. If necessary, use a stiff bristled brush to loosen
any dirt. Failure to clean the condenser will void the war-
ranty.
Condensate Evaporator Pan
The condensate evaporator pan, located behind and
below the condenser fan, must be cleaned periodically to
prevent foul odors and to operate efficiently. Vacuum
clean if dry or sponge clean with soap and water.
Maintenance
Caution
Do not use any type of abrasive such
as steel wool, or fluids such as gaso-
line, Naphtha, and thinner. These
materials could be harmful to alu-
minum, plastic materials, door gasket,
and painted surfaces.
Warning
When servicing the unit, disconnect
from the electrical power source.
Caution
Accessing and cleaning the conden-
sate coil or pan should be done by
qualified personnel.

Replacements for Laboratory Freezer parts serviceable
by the user may be ordered, by part number, from Fisher
Scientific Co. at 1-800-438-4851.
Item Part Number
Freezer Replacement Shelf SPN13986210E
Solid State Relay (K1) SPN88616
Temperature Controller W/Sensor SPN103508
(220V) International Version Control SPN105402
Front Shelf Support SPN103264
Rear Shelf Support SPN103265
Threaded Legs SPN104434
Starter Component Kit 302-977A
16
Replacement Parts

17
Wiring Diagrams
+
N
O
TE: Two door models have two face
heaters
,
two door switches
,
two condenser
fans and two eva
p
orator fans
.
EVAP
O
RAT
O
R
FAN
CO
NTR
OL
PNK
RED
CO
NTR
O
LLER
TAB
3
A
C
12 V D
C
C
ool
Rela
y
+
-
KEY
S
WIT
CH
BL
K
BLK
DEFR
OS
T
S
WIT
C
H
1
BLK
BLK
YEL
BL
U
L1
Com
p
resso
r
Rela
y
-
K1
CO
MPRE
SSO
R M
O
T
OR
CONDENSER FAN
(
S
)
DEFR
OS
T TIMER
M
O
T
OR
K1
BRN
DEFR
OS
T TIMER
CU
T-
OU
T
CO
I
L
O
R
N
RED
DEFR
OS
T LIMIT
CO
NTR
OL
WHT
DEFR
OS
T HEATE
R
O
R
N
FACE HEATER
(
S
)
BL
U
DEFR
OS
T
S
WIT
C
H
2
PRPL
E
VAP
O
RAT
O
R
F
AN
(
S
)
WHT
WHT
WHT
FREEZER LI
G
H
T
N
115 VAC 60Hz,
(
domestic
)
220VAC 50Hz
(
international
)
D
OO
R
S
WIT
CH
S
hown in doo
r
o
p
en
p
osition
.
Catalog Numbers:
13-986-223F/FA/FR, 13-986-223FHK/223FRHK/223FAHK, 13-986-247FHK/247FRHK/247FAHK,
13-986-274FHK/FRHK/FAHK

18
WIRING DIAGRAMS
Catalog Numbers: 13-986-247F/FA/FR, 13-986-274F/FA/FR
CO
NTR
O
LLE
R
TAB
3
N
O
TE: Two door models have two face
heaters
,
two door switches
,
two condenser
fans and two eva
p
orator fans
.
RED
12 V D
C
A
C
KEY
SWITCH
O
R
N
BLK
BLK
DEFR
OS
T TIMER
M
O
T
OR
Com
p
ressor
Rela
y
C
ool
Rela
y
-
+
R1
-
+
HEATER
COMPRESSOR MOTOR
CONDENSER FAN
(
S
)
DEFR
OS
T HEATE
R
WHT
BRN
PNK
R1
DEFR
OS
T TIMER
CU
T-
OU
T
CO
I
L
DEFR
OS
T
S
WIT
C
H
1
O
R
N
O
R
N
DEFR
OS
T LIMIT
CO
NTR
OL
RED
YEL
YEL
BL
U
L1
WHT
BLK
EVAP
O
RAT
O
R
FAN
CO
NTR
OL
DEFR
OS
T
S
WIT
C
H
2
PRPL
BL
U
FAN
(
S
)
WHT
WHT
RED
WHT
BLK
2
30
VA
C
FREEZER LI
G
H
T
N
D
OO
R
S
WIT
C
H #
1
D
OO
R
S
WIT
C
H #
2
(
2-DOOR MODEL ONLY
)
D
OO
R
S
WIT
C
H #
3
(
3-DOOR MODEL ONLY
)
G
RN
/
YE
L
RED
D
RED

19

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.
Warranty