Fisher Scientific Isotemp Plus 13-986-120 User manual

Isotemp®Plus
Chromatography and General Purpose
Laboratory Refrigerators
Isotemp Plus Laboratory Refrigerators
120V Versions 230V Versions 220V International Versions
13-986-120/120R 13-986-121/121R 13-986-121HK/121RHK
13-986-122/122R 13-986-123/123R 13-986-123HK/123RHK
13-986-124/124R 13-986-125/125R 13-986-125HK/125RHK
13-986-126/126R 13-986-127/127R 13-986-127HK/127RHK
13-986-128/128R 13-986-129/129R 13-986-129HK/129RHK
13-986-128S/128SR 13-986-129S/129SR 13-986-129SHK/129SRHK
13-986-130/130R 13-986-131/131R 13-986-131HK/131RHK
13-986-132/132R 13-986-133/133R 13-986-133HK/133RHK
Isotemp Plus Chromatography Refrigerators
120V Versions 230V Versions 220V International Versions
13-986-134/134R 13-986-135/135R 13-986-135HK/RHK
13-986-136/136R 13-986-137/137R 13-986-137HK/RHK
13-986-136S/136SR 13-986-137S/137SR 13-986-137SHK/SRHK
13-986-138/138R 13-986-139/139R 13-986-137HK/RHK
13-986-138X/138RX/138AX 13-986-139X/139RX/139AX
13-986-140/140R 13-986-141/141R 13-986-141HK/RHK
Isotemp Plus Laboratory Refrigerators with Drawers
120V Versions 230V Versions
13-986-134D,13-986-134DR 13-986-135D, 13-986-135DR
13-986-138D, 13-986-138DR 13-986-139D, 13-986-139DR
13-986-140D, 13-986-140DR 13-986-141D, 13-986-141DR
R - Addition of Chart Recorder
HK - International Refrigerators are 220V, 50Hz.
104214 • Rev. A

Introduction ............................................................................................................................................................................3
Unpacking and Installation ....................................................................................................................................................4
Unpacking........................................................................................................................................................................4
Visible Loss or Damage ..................................................................................................................................................4
Concealed Loss or Damage............................................................................................................................................4
Packing List ....................................................................................................................................................................5
Selecting a Location ........................................................................................................................................................5
Legs ................................................................................................................................................................................5
Installing and Leveling Casters ......................................................................................................................................6
Shelves............................................................................................................................................................................6
Electrical Connection ......................................................................................................................................................7
Operation ................................................................................................................................................................................8
Controls Layout ..............................................................................................................................................................8
Menus..............................................................................................................................................................................9
Temperature Setpoint ..............................................................................................................................................9
Units ........................................................................................................................................................................9
Calibration ................................................................................................................................................................9
Hold-Off Time ........................................................................................................................................................10
Temperature Digression ................................................................................................................................................10
Error Codes ..................................................................................................................................................................11
Interior Lighting..............................................................................................................................................................11
Convenience Outlet ......................................................................................................................................................11
Troubleshooting ....................................................................................................................................................................12
Maintenance ........................................................................................................................................................................13
Cabinet Cleaning ..........................................................................................................................................................13
Cleaning the Condensor................................................................................................................................................13
Condensate Evaporator Pan ........................................................................................................................................13
Replacement Parts ..............................................................................................................................................................14
Performance Characteristics ........................................................................................................................................14
Wiring Diagrams ..................................................................................................................................................................15
Warranty ..............................................................................................................................................................................20
Table of Contents

3
Your satisfaction and safety are important to Fisher
Scientific, a complete understanding of this unit is neces-
sary 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 main-
tenance requirements - are important for safe and satis-
factory operation. The unit should be used for its intended
application; alterations or modifications will void the
Warranty.
Introduction
Warning
As a routine laboratory precaution,
always wear safety glasses when
working with this apparatus.
Warning
This product is not intended, nor can it
be used, as a sterile or patient con-
nected device. It is not approved for
the storage of blood or blood products.
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.
Warning
These refrigerators are not approved
for the storage of blood or blood prod-
ucts!
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; there-
fore, claims for loss or damage sustained in transit
must be made upon the carrier by the recipient as fol-
lows:
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 carrier will sup-
ply the form required to file such a claim.
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 to 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 guar-
antee 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
Unpacking and Installation

Packing List
The following items are packed in the envelope located
inside the refrigerator chamber. If any of the following
items are not present, report the missing item to your
local Fisher representative.
1. Warranty Card
2. Instruction Manual
3. Door Lock Key
4. Power Switch Key
5. Chart Recorder Instructions (Catalog No.’s with
“R”)
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 rear.
Appropriate electrical power must be available. Locate
the refrigerator within 6 feet of the power outlet so that no
extension cord is required.
Legs
Refrigerators with sliding doors have four legs already
threaded into the base of the unit. The legs are located in
the corners of the unit and are threaded all the way in.
5
UNPACKING AND INSTALLATION

Installing and Leveling Casters
Isotemp Plus refrigerators and freezers come with four
casters, which thread into the base of the unit, one in
each corner. Use the wrench provided to thread the cast-
ers completely into the base of the unit. Back the casters
in or out until the unit is level and resting on all four cast-
ers. See Figure 1.
Shelves
Shipped inside each cabinet is a set of epoxy coated
shelves. Epoxy coated filler shelves are provided for units
with more than one door. Shelf supports, located in the
plastic bag, are pushed into the side pilasters, one in
each corner, at the desired shelf height. Replacement
shelves are available individually. See page 14 for shelf
part numbers.
6
UNPACKING AND INSTALLATION
Refrigerator
Base
Thread casters directly
into base at four corners.
Tighten using
wrench provided.
Figure 1
Note
The refrigerator must be level in order
to provide adequate condensation
drainage as well as proper door align-
ment and operation. The refrigerator
should be in its final operating loca-
tion and set so that it is firmly posi-
tioned on the floor.
Note
Chromatography units include addi-
tional 1/2 shelves, which can be
used in place of the full shelves.
Figure 2

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 interior upper left side. Plug the unit only 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 customer should have the wall receptacle and circuit
checked by a qualified electrician to verify the receptacle
is properly grounded and is connected to the proper
power supply. The following list gives the NEMA
plug/receptacle configuration for the corresponding refrig-
erators.
7
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. DO NOT under
any circumstance cut or remove the
ground prong from the power cord.
DO NOT use a plug adapter that
eliminates the ground prong.
Laboratory Refrigerators
Catalog No.'s NEMA Plug NEMA Receptacle
13-986-120\122 5-15P 5-15R
13-986-124\126\128 5-15P 5-15R
13-986-128S\130\132 5-15P 5-15R
13-986-121\123 L14-20P L14-20R
13-986-125\127\129 L14-20P L14-20R
13-986-129S 6-15P 6-15R
13-986-131\133 L14-20P L14-20R
Chromatography Refrigerators
Catalog No.'s NEMA Plug NEMA Receptacle
13-986-134 5-20P 5-20R
13-986-136\136S\138\140 5-20P 5-20R
13-986-135\137\137S L14-20P L14-20R
13-986-139\141 L14-20P L14-20R
Warning
Catalog numbers ending in HK are
international 3-Wire systems and
should not be confused with 230V
domestic units which are 4-Wire sys-
tems. Consult a qualified electrician
before powering this unit.
Caution
Do not use an extension cord. Use of
an ungrounded cord or an overloaded
circuit VOIDS the compressor warran-
ty.
UNPACKING AND INSTALLATION

8
Before operation, become familiar with the refrigerator
controls located on the refrigerator header panel. A layout
of the controls is given below.
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 refrigerator
chamber. Turning the key switch to the ON ( | ) position
will energize the evaporator fans and the digital controller.
Controls Layout
The digital temperature controller is located on the header
panel (See Figure 3). When the unit is initially 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 temperature display.
The refrigerator is factory set at 4°C. When the unit is first
energized the evaporator fans will operate, however it will
not immediately cool. A compressor delay time is pro-
grammed into the controller to verify the system pressure
is low enough to activate the motor. When the delay time
is over, the Cool LED will illuminate, the compressor will
run and the chamber will cool.
Operation
Warning
If the unit is tilted in excess of 30
degrees, do not apply electrical
power for a minimum of 12 hours.
Warning
This product is NOT approved for
storage of flammable or explosive
materials. Also, it is NOT approved
for use in hazardous locations con-
taining explosive atmospheres.
Note
The refrigerator has a built in delay
time before compressor activations.
Upon initial start-up, the unit will delay
before cooling begins.
I
O
POWER
ON
OFF
I
O
Interior Light Switch
Units LED'S
Mode LED Cool LED
Key Switch
Temperature Display
Menu Keypad
Increase Keypad
Decrease Keypad
Figure 3

Menus
By gently pressing the keypads shown in Controls Layout,
the refrigerator can be set to operate anywhere in the 1.0
to 12.0°C (33.8 to 53.6°F) temperature range in units of
°C or °F. When the MENU keypad is pressed, the MODE
LED will illuminate, indicating the operating parameters,
setpoint (SP), temperature offset (oS), hold-off time (Ho),
or units (CF) can be set to the customer's preference.
Temperature Set-Point
Pressing the MENU keypad once will bring up the set-
point menu. The display will flash SP, followed by the last
set temperature in units indicated by the Units LED. Use
the Increase or Decrease keypad to change the set tem-
perature to the desired target temperature (1.0 to 12.0°C,
33.8 to 53.6°F). Press the Menu keypad to enter the set
temperature and bring up the units select menu.
Units
Temperatures can be displayed in either °C or °F. The
units select menu follows the set-point menu. Or, from the
temperature display mode (default mode) press the menu
key until the display flashes CF followed by a single C or
F, which indicates the most recent units selected. Use the
Increase or Decrease keypad to change the units from °C
to °F or vice versa. Press the Menu keypad again to enter
the desired units and return to the temperature display
mode. Once selected, the appropriate units LED should
be lit.
Calibration
In the event the refrigerator needs to be calibrated, a sim-
ple routine is available to adjust the display and control
point to a referenced standard. To set a temperature off-
set while in the temperature display mode (mode LED
off), simply press and hold the Menu key for 5 seconds.
The display will flash "oS" followed by the last tempera-
ture offset value. The factory setting is 0.0. To change
the offset value, press the Increase or Decrease keypad
to the value which when algebraically added to the last
displayed temperature, will agree with the reference tem-
perature. Next, press the Menu key two more times. The
value shown in the display will be added to the previous
temperature reading.
9
OPERATION
Note
While in any of the controller mode
setups (temp set, offset or units), the
controller will wait 15 seconds for a
new value to be entered. If there is
no keypad operation within the 15-
second time window, control will
automatically revert to the tempera-
ture display mode and the Mode
LED will turn off.

For Example:
The display indicates 4°C but a reference thermometer in
the refrigerator chamber indicates 6°C. The operator
holds in the Menu KEY and changes the display value
from 0.0 to 2.0. The Menu key is pressed two additional
times so that the controller again displays chamber tem-
perature. Now the display indicates a chamber tempera-
ture of 6°C and the controller begins to cool to the desired
temperature of 4°C.
Allow an additional 30 to 40 minutes for the refrigerator 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 allow additional time for
the evaporator to defrost. This can reduce the chance of
evaporator freeze-up during times of high humidity.
Pressing the Menu keypad while in the Ho mode, enters
the hold-off time displayed, and returns controller opera-
tion to the temperature display mode.
Temperature Digression
By pressing the Increase keypad, the display will show
the warmest temperature recorded since the unit was
energized or the digression values were reset. Pressing
the Decrease keypad will display the coldest temperature
recorded since the unit was energized or the digression
values were reset.
To reset the temperature digression values, simply press
the Increase and Decrease keypads at the same time.
The display will show Clr, indicating the controller will
begin recording new warm and cold digressions once
more.
10
OPERATION
Caution
INCREASING the offset value
DECREASES the temperature at
which the system controls. If the offset
is inadvertently set too high, the
chamber temperature can fall below
zero and cause evaporator freeze-up.

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 Lighting
The interior lamp(s) is controlled next by a rocker switch
located on the header panel. This light may be operated
any time the cabinet power is turned on at the keyed
power switch. If the interior lamp fails, replace with the
same size and wattage lamp. DO NOT USE REDUCED
WATTAGE LAMPS. The reduced wattage lamps generally
fail to light below 60°F (15°C).
Convenience Outlet
(Chromatography Refrigerators Only)
The Chromatography Refrigerators come equipped with a
convenience outlet located in the center of the back wall.
Models 140,141 (three doors) have two convenience out-
lets. The power to the outlets is protected by a circuit
breaker. The breaker is located just below and to the
right of the outlet. Pressing the breaker button resets the
breaker after a fault.
11
Warning
The convenience outlet is LIVE at any
time the unit is connected to an elec-
trical power source, regardless of the
position of the key switch.
OPERATION

1212
Symptom Probable Cause Action
Does not run. Unit unplugged. Plug in unit.
Blown fuse or tripped circuit breaker. Check fuse or circuit breaker at
breaker box.
Runs continuously. Frost buildup on refrigeration Turn unit off and allow it to defrost.
coils.
Note: Evaporator freeze-up can
be caused by improper offset (oS)
value.
Clicking sound. The compressor is equipped with Disconnect power and allow unit to
a thermal protector. This device sit for about an hour, then retry. If
shuts off the compressor when it condition persists, call for service.
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.
Offset (oS) value is too low. Increase offset value.
Condenser coil dirty. Clean condenser coil with a vacuum
cleaner.
Unit frosted. Defrost unit.
Evaporator frozen. Verify internal circulating fans are
operating.
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 Fisher Scientific Service
Division at 1-800-438-4851.
Troubleshooting

1313
Cabinet Cleaning
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 cabinet exterior should be cleaned occa-
sionally. A mild detergent and lukewarm water or a solu-
tion of bicarbonate of soda (1 tablespoon per gallon of
water) is recommended for cleaning the interior and exte-
rior of the cabinet. All surfaces should be rinsed and thor-
oughly dried.
Cleaning the Condenser
For efficient operation, it is recommended that the con-
denser coil and fan be cleaned every 4 to 6 months. On a
swinging door model, the condenser coil is located behind
the vented part of the header panel (left side). Remove
the header panel for access. The condenser coil on a
sliding glass door model is located behind the base grille,
at the bottom of the unit.
Vacuum clean the front surface of the coil thoroughly, or
direct forced air through the condenser from the rear. If
necessary, use a stiff bristled brush to loosen any dirt.
Condensate Evaporator Pan
The condensate evaporator pan is located behind the
compressor fan, which is on the top, left side of the
swinging door model refrigerators, and behind the base
grill of the sliding door model refrigerators. This pan
should be cleaned at least once a year to prevent foul
odors and operate efficiently. Vacuum clean if dry, or
sponge clean with soapy water.
Maintenance
Caution
When servicing the unit, disconnect
plug from the electrical power source
Caution
Do not use any type of abrasive such
as steel wool or fluids, such as gaso-
line, Naptha or paint thinner, that
could be harmful to plastic materials,
door gasket and/or painted surfaces.
Caution
Accessing and cleaning the condens-
er coil or evaporator pan should be
done by qualified personnel.

14
Replacements for Laboratory Refrigerator parts serviceable by the user may be ordered by part number from
Fisher Scientific Co. at 1-800-438-4851.
Item Part Number
Epoxy Coated Shelves
13-986-120/121/126/127/130 to 135/138 to 141 (gray) 13-986-210E
13-986-122/123/124/125 (gray) 13-986-210M
13-986-128S/129S/136S/137S (white) 13-986-210W
13-986-128/129/136/137 (gray) 13-986-210L
Epoxy Coated 1/2 Shelves
13-986-120/121/126/127/130 to135/138 to 141 (gray) 13-986-210K
13-986-122/123/124/125 (gray) 13-986-210N
13-986-128S/129S/136S/137S (white) 13-986-210Y
13-986-128/129/136/137 (gray) 13-986-210P
Zinc Coated Shelves
13-986-120/121/126/127/130 to 135/138 to 141(gray) 13-986-211E
13-986-122/123/124/125 (gray) 13-986-211M
13-986-128S/129S/136S/137S (white) 13-986-211P
13-986-128/129/136/137 (gray) 13-986-211C
Zinc Coated 1/2 Shelves
13-986-120/121/126/127/130 to 135/138 to 141 (gray) 13-986-211K
13-986-122/123/124/124 (gray) 13-986-211N
13-986-128S/129S/136S/137S (white) 13-986-211Q
13-986-128/129/136/137 (gray) 13-986-211H
Compressor Relay (K1) SPN88616
*Temperature Controller SPN104161
International Version (220V) Controller SPN105402
Condensate Pan Wick, 23.1 & 30 Cu. Ft SPN107670
Condensate Pan Wick, 47.6 & 74 Cu. Ft. SPN107671
Condenser Pan Wick (-128S, -136S) 106961
Shelf Support SPN103265
Chart Recorder Manual SPN104118
Drawer and Slide Assembly SPN13999DRAW
Performance Characteristics
Temperature Range: 1° to 12°C (34° to 54°F)
Temperature Stability: ±3°C
* Check part number on PCB.
Replacement Parts

15
Wiring Diagrams
Convenience Outlet, Chromatography Refrigerators Only
115V Domestic, 220V International
D
omesti
c
For refrigerators with SOLID, SWINGING doors

16
WIRING DIAGRAMS
115V Domestic
,
220V Internationa
l
2
30
V Domesti
c
For refrigerators with SWINGING GLASS doors

17
WIRING DIAGRAMS
Refri
g
erators Onl
y.
For refrigerators with SLIDING GLASS doors

181818

191919

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