Thermo Scientific Thermo Scientific TDE Series User manual

Ultra-Low Temperature Freezers
Thermo ScientificTM TDE Series
Installation and Operation
332851H01 • Revision A • July 2022

IMPORTANT Read this Installation and Operation 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. Thermo Fisher Scientific makes no representations or warranties with
respect to this manual. In no event shall Thermo be held liable for any damages, direct or incidental, arising
from or related to the use of this manual.
© 2022 Thermo Fisher Scientific Inc. All rights reserved.

Contents
Models......................................................................... 1
Safety Considerations .................................................. 2
ELECTROMAGNETIC COMPATIBILITY (EMC) ......... 4
Symbols Glossary .................................................... 6
Unpacking ................................................................... 7
Packing List ............................................................. 7
General Recommendations.......................................... 8
Temperature Monitoring system............................... 8
General Usage ......................................................... 8
Initial Loading ........................................................... 8
Grille Door Opening/Closing ..................................... 8
Operating Standards.................................................... 9
Electrical Specifications............................................ 9
Installation.................................................................... 10
Location................................................................... 10
Protective Conductor current ................................... 10
Wiring....................................................................... 10
Leveling.................................................................... 11
Ice Scraper .............................................................. 11
Backup System (Optional) ........................................ 11
Door Operation ........................................................ 11
Installing the Remote Alarm Connector..................... 11
Intended Use:........................................................... 11
Operation..................................................................... 12
Initial Start Up........................................................... 12

Operation Overview.................................................. 12
Display ..................................................................... 12
Settings.................................................................... 13
Power Down ............................................................ 14
Ice Scraper Instruction ................................................. 15
Purpose ................................................................... 15
Backup System (Optional)............................................ 16
CO2 and LN2 Precautions ....................................... 16
Installation................................................................ 16
Start Up ................................................................... 17
Operation................................................................. 17
Chart Recorders (Optional)........................................... 18
Set Up and Operation .............................................. 18
Changing Chart Paper.............................................. 18
Calibration Adjustment ............................................. 18
Maintenance ................................................................ 19
Cleaning the Condenser........................................... 19
Cleaning the Condenser Filter................................... 19
Gasket Maintenance ................................................ 19
Defrosting the Freezer .............................................. 19
Battery Maintenance ................................................ 19
Maintenance Schedule............................................. 20
Troubleshooting Guide................................................. 21
Error Codes ................................................................. 25
Warranty...................................................................... 26
Warranty (International) ................................................ 27

Appendix A: Alarm Summary ....................................... 28
Appendix B: Modbus ASCII
Parameter Table .......................................................... 30
End of Life Care ........................................................... 38
Contact Information .................................................... 39

Thermo Fisher Scientific ULT Freezers Models | 1
Models
Table 1. Applicable Models
Model Size (xxx) Voltage (*) Description
TDECxxx86L* 063/252/396 A/D/V Medical Device

2 | Safety Considerations Thermo Fisher Scientific ULT Freezers
Safety Considerations
In this manual, the following symbols and conventions are
used:
Below are symbols and safety warnings that may be used on
the product: (see list on pages 5 & 6)
Below are important safety precautions that apply to this
product:
This symbol used alone indicates important
operating instructions which reduce the risk of
injury or poor performance of the unit.
CAUTION: This symbol, in the context of a
CAUTION, indicates a potentially hazardous
situation which if not avoided could result in
minor to moderate injury or damage to the
equipment.
WARNING: This symbol indicates potentially
hazardous situations which, if not avoided, could
result in serious injury or death.
WARNING: This symbol indicates situations
where dangerous voltages exist and potential for
electrical shock is present.
The snowflake symbol indicates extreme low
temperatures and high risk of frostbite. Do not
touch bare metal or samples with unprotected
body parts.
This symbol indicates a need to use gloves during
the indicated procedures. If performing
decontamination procedures, use chemically
resistant gloves. Use insulated gloves for handling
samples and when using liquid nitrogen.
Before installing, using or maintaining this
product, please be sure to read this manual and
product warning labels carefully. Failure to follow
these instructions may cause this product to
malfunction, which could result in injury or
damage.
Use this product only in the way described in the
product literature and in this manual. Before using
it, verify that this product is suitable for its
intended use. If this equipment is used in a
manner not specified by the manufacturer, the
protection provided by the equipment may be
impaired.
Do not modify system components, especially
the controller. Use OEM exact replacement
equipment or parts. Before use, confirm that the
product has not been altered in any way.
WARNING: Your unit must be properly grounded
in conformity with national and local electrical
codes. Never connect the unit to overloaded
power sources.
WARNING: Disconnect the unit from all power
sources before cleaning, troubleshooting, or
performing other maintenance on the product or
its controls.
WARNING: “Caution, risk of fire”. This unit is
charged with hydrocarbon refrigerants.
WARNING: Ensure all ventilation openings are
not obstructed.
WARNING: Do not use mechanical devices or
other means to accelerate the defrosting
process, other than those recommended by the
manufacturer.
WARNING: Do not damage the refrigerant
circuit.
WARNING: In order to reduce flammability
HAZARDS the installation of this equipment shall
only be carried out by a suitably qualified person.
WARNING: Use of this equipment adjacent to or
stacked with other equipment should be avoided
because it could result in improper operation. If
such use is necessary, this equipment and the
other equipment should be observed to verify
that they are operating normally.
WARNING: Use of accessories, transducers and
cables other than those specified or provided by
the manufacturer of this equipment could result in
increased electromagnetic emissions or
decreased electromagnetic immunity of this
equipment and result in improper operation.

Thermo Fisher Scientific ULT Freezers Safety Considerations | 3
WARNING: Portable RF communications
equipment (including peripherals such as
antenna cables and external antennas) should be
used no closer than 30 cm (12 inches) to any part
of the ULT freezer, including cables specified by
the manufacturer. Otherwise, degradation of the
performance of this equipment could result.
IMPORTANT NOTE: The EMISSIONS
characteristics of this equipment make it suitable
for use in industrial areas and hospitals (CISPR
11 class A). If it is used in a residential
environment (for which CISPR 11 class B is
normally required) this equipment might not offer
adequate protection to radio-frequency
communication services. The user might need to
take mitigation measures, such as relocating or
re-orienting the equipment.
CAUTION: Risk of fire or explosion due to
flammable refrigerant used. Follow handling
instructions carefully in compliance with U.S.
government regulations.
AVERTISSEMENT - Risque d'incendie ou
d'explosion. Réfrigérant inflammable utilisé.
Suivez attentivement les instructions de
manipulation conformément à la réglementation
gouvernementale américaine.
DANGER: Risk of fire or explosion. Flammable
refrigerant used. To be repaired only by trained
service personnel. Do not puncture refrigerant
tubing.
AVERTISSEMENT - Risque d'incendie ou
d'explosion. Réfrigérant inflammable utilisé. Pour
être réparé uniquement par du personnel de
service qualifié, Ne pas percer le tuyau de
réfrigérant.
CAUTION: This unit is intended for use in
laboratories in commercial, industrial or
institutional occupancies as defined in the safety
standard of refrigeration systems, ASHRAE 15.
AVERTISSEMENT - Cette unité est destinée à
être utillsée dans des laboratoires dans des
établissements commerciaux, industriels ou
institutionnels tels que définis dans la norme de
sécurité des systèmes de réfrigération,
ASHRAE 15.
CAUTION: Risk of fire or explosion. Dispose of
properly in accordance with federal or local
regulations. Flammable refrigerant used.
AVERTISSEMENT - Risque d'incendie ou
d'explosion. Éliminer correctement
conformément aux réglements fédéraux ou
locaux. Réfrigérant inflammable utilisé.
CAUTION: Risk of fire or explosion. Flammable
refrigerant used. Consult repair manual/owner's
guide before attempting to install or service this
product. All safety precautions must be followed.
AVERTISSEMENT - Risque d'incendie ou
d'explosion. Réfrigérant inflammable utilisé.
Consultez le manuel de réparation / guide du
propriétaire avant d'essayer d'installer ou de
réparer ce produit. Toutes les précautions de
sécurité doivent être suivies.

4 | Safety Considerations Thermo Fisher Scientific ULT Freezers
ELECTROMAGNETIC COMPATIBILITY (EMC)
Guidance and Manufacturer’s Declaration—Electromagnetic Emissions
Emission Test Compliance Electromagnetic Environment Guidance
RF emissions
CISPR 11 Group 1 The EMISSIONS characteristics of the freezer make it suitable for use in commer- cial, industrial or institutional occupancies (CISPR 11 class A). If it is used in a resi-
dential environment (for which CISPR 11 class B is normally required), this
equipment might not offer adequate protection to radio-frequency communication
services. The user might need to take mitigation measures, such as relocating or
reorienting the equipment.
RF emissions
CISPR 11 Class A
Guidance and Manufacturer’s Declaration—Electromagnetic Immunity
Immunity Test IEC 60601-1-2 Test
Level Compliance Level Electromagnetic Environment Guidance
Electrostatic
discharge (ESD)
IEC 61000-4-2
±8 kV contact
±15 kV air
±8 kV contact
±15 kV air
Floors should be wood, concrete, or
ceramic tile. If floors are covered with
synthetic material, the relative humidity
should be at least 30%
Electrical fast
transient/burst
IEC 61000-4-4
±1 kV for input/output
lines ±2 kV for AC
powerlines
±1 kV for input/output
lines ±2 kV for AC
powerlines
Mains power quality should be that of a
typical commercial or industrial environ-
ment.
Surge
IEC 61000-4-5
±1 kV differential mode
±2 kV
common mode
±1 kV differential mode
±2 kV
common mode
Mains power quality should be that of a
typical commercial or industrial environ-
ment
Voltage dips, short
interruptions, and
voltage variations on
power supply input
lines
IEC 61000-4-11
0% UT (100% dip in
UT) for 0.5 cycle at 0°,
45°, 90°, 135°, 180°,
225°, 270° and 315°
.0% UT (100% dip in
UT) for 1 cycle at 0°
70% UT (30% dip in
UT) for 25/30 cycles
at 0°
0% UT (100% dip in
UT) for 250/300 cycles
0% UT (100% dip in
UT) for 0.5 cycle at 0°,
45°, 90°, 135°, 180°,
225°, 270° and 315°.
0% UT (100% dip in
UT) for 1 cycle at 0°
70% UT (30% dip in
UT) for 25/30 cycles
at 0°
0% UT (100% dip in
UT) for 250/300 cycles
Mains power quality should be that of a
typical commercial or industrial environ-
ment
Power frequency
(50/60 Hz) magnetic
field IEC 61000-4-8
30 A/m 30 A/m
Mains power quality should be that of a
typical commercial or industrial environ-
ment.

Thermo Fisher Scientific ULT Freezers Safety Considerations | 5
EMC Registration is done on this equipment for professional
use only. It may cause interference when the product would
be used in home.
This equipment has been tested and found to comply with the
limits for a Class A digital device. Class A covers devices for
usage in all establishments other than domestic and that are
not directly connected to a low voltage power supply
network, which supplies domestic environment.
FCC (where applicable)
This device complies with Part 15 Subpart B of the FCC
Rules. Operation is subject to the following two conditions:
(1) this device may not cause harmful interference, and (2) this
device must accept any interference received, including
interference that may cause undesired operation. Any
changes or modifications not expressly approved by the
manufacturer could void the user’s authority to operate the
equipment.
This equipment has been tested and found to comply with the
limits for a Class A digital device, pursuant to part 15 of the
FCC Rules. These limits are designed to provide reasonable
protection against harmful interference when the equipment is
operated in a commercial environment. This equipment
generates, uses, and can radiate radio frequency energy and,
if not installed and used in accordance with the instruction
manual, may cause harmful interference to radio
communications. Operation of this equipment in a residential
area is likely to cause harmful interference in which case the
user will be required to correct the interference at his own
expense.
Conducted RF
IEC 61000-4-6
3 Vrms
150 kHz to 80 MHz
6Vrms for ISM bands
between 150 kHz and
80 MHz
3 Vrms
150 kHz to 80 MHz
6Vrms for ISM bands
between 150 kHz and
80 MHz
Mains power quality should be that of a
typical commercial or industrial environ-
ment.
Radiated RF
IEC 61000-4-3
3 V/m
80 MHz to 2.7 GHz
27 V/m
385 MHz
28 V/m
450 MHz
9 V/m
710/745/780 MHz
28 V/m
810/870/930 MHz
28 V/m
1720/1845/1970 MHz
28 V/m
2450 MHz
9 V/m
5240/5500/ 5785 MHz
10 V/m
80 MHz to 2.7 GHz
27 V/m
385 MHz
28 V/m
450 MHz
9 V/m
710/745/780 MHz
28 V/m
810/870/930 MHz
28 V/m
1720/1845/1970 MHz
28 V/m
2450 MHz
9 V/m
5240/5500/ 5785 MHz
Portable RF communications equipment
(including peripherals such as antenna
cables and external antennas) should be
used no closer than 30 cm (12 inches) to
any part of the ULT freezer, including
cables specified by the manufacturer.
Otherwise, degradation of the
performance of this equipment could
result.
NOTE 1: UT is the AC mains voltage prior to application of the test level.
Guidance and Manufacturer’s Declaration—Electromagnetic Immunity

6 | Safety Considerations Thermo Fisher Scientific ULT Freezers
Canadian ISED IC Notice
This ISM digital apparatus complies with Canadian ICES-001,
Class A.
Cet appareil ISM est conforme à la norme NMB-001 du
Canada, Classe A.
This product has been tested as per IEC 60601-1-2:2014
standard. This product has been tested for all applicable EMC
tests such as Conducted emissions (Class A, CISPR 11),
Radiated Emissions (Class A, CISPR 11), Electrostatic
discharge (IEC 61000-4-2), Radiated RF immunity
(IEC 61000-4-3), Electrical fast transients (IEC 61000-4-4),
Surges (IEC 61000-4-5), RF Conducted susceptibility
(IEC 61000-4-6), Power frequency magnetic field
(IEC 61000-4-8) and Voltage dips & interrupts
(IEC 61000-4-11).
This unit is not intended for use in classified hazardous
locations, nor to be used for the storage of flammable
inventory.
Symbols Glossary
NOTICE / AVIS:
WE RECOMMEND THE USE OF A REDUNDANT AND
INDEPENDENT TEMPERATURE MONITORING SYSTEM
AND THAT FREEZER BE MONITORED 24/7 FOR
PERFORMANCE COMMENSURATE WITH THE VALUE OF
PRODUCT STORED.
NOUS RECOMMANDONS L'UTILISATION D'UN SYSTÈME
DE SURVEILLANCE DE LA TEMPÉRATURE INDÉPENDANT
ET DE SURVEILLER LE CONGÉLATEUR TOUS LES JOURS
24 HEURES SUR 24 AFIN QUE LE RENDEMENT
CORRESPONDE À LA VALEUR DU PRODUIT ENTREPOSÉ.
Environment Friendly Use Period
(EFUP): 25 years
UL Listed in United States and Canada
Refer to instruction manual/booklet
https://www.thermofisher.com/userman-
ual
Air Transport Prohibited
Medical Device
Warning: Low Temperature Hazard
Warning: Crushing of hands
General warning sign
Warning: Flammable material
Warning: Device susceptible to
electrostatic discharge
Internally Powered 4-20mA analog output
DO NOT APPLY EXTERNAL POWER.

Thermo Fisher Scientific ULT Freezers Unpacking | 7
Unpacking
At delivery, examine the exterior for physical damage while
the carrier’s representative is present. If exterior damage is
present, carefully unpack and inspect the unit and all
accessories for damage.
If there is no exterior damage, unpack and inspect the
equipment within five days of delivery. If you find any damage,
keep the packing materials and immediately report the
damage to the carrier. Do not return goods to the
manufacturer without written authorization. When submitting
a claim for shipping damage, request that the carrier inspect
the shipping container and equipment.
The packaging can be stored and re-used.
Packing List
Inside the freezer cabinet is a bag containing:
• A handle lock key
• Certificates of conformance and calibration.
• A remote alarm contact connector
• Posts for rear spacing
• Ice Scraper & Magnetic hook
If you have ordered a chart recorder, the bag will also contain:
• Recorder installation instructions
• Extra paper
If you have ordered a backup system, the cabinet will also
contain:
• A hose assembly
• English and metric connectors
If specified on the order, the bag may also include:
• A QC temperature graph and test log
• Calibration information

8 | General Recommendations Thermo Fisher Scientific ULT Freezers
General Recommendations
Temperature Monitoring
system
General Usage
This refrigeration system is designed to maintain ultra-low
temperatures with safety in an ambient environment within
15°C to 32°C (59°F to 90°F), only when the freezer is used for
storage.
Avoid opening the door for extended time periods since
chamber temperature air will escape rapidly. Also, keep the
inner doors/sublids closed as much as possible. When room
air, which is higher in humidity, replaces chamber air, frost
may develop in the chamber more rapidly.
Initial Loading
Allow the freezer to operate at the desired temperature for a
minimum of 12 hours before loading.
• Load the freezer one shelf at a time, beginning with the
bottom. After loading each shelf, allow the freezer to
recover to the desired set point before loading the next
shelf. Repeat this process until the freezer is fully loaded.
• Fill a chest by starting at the left side near the probe.
Filling with room temperature racks will result in a long
pull-down time.
Grille Door Opening/
Closing
To open the grille door, pull the door from the left as shown in
the figure below.
To close the grille door, push the door against frame to hold
latch in position.
Figure 1. Door Opening
IMPORTANT NOTE: Thermo Fisher Scientific
recommends the use of a redundant and
independent temperature monitoring system so
that the freezer can be monitored continuously
for performance commensurate with the value of
product stored.
WARNING: This unit is not a “rapid-freeze”
device. Freezing large quantities of liquid, or
high-water content items, will temporarily
increase the chamber temperature and will cause
the compressors to operate for a prolonged time
period.
CAUTION: Failure to follow these procedures or
overloading the unit may cause undue stress on
the compressors or jeopardize user product
safety.

Thermo Fisher Scientific ULT Freezers Operating Standards | 9
Operating Standards
The freezers described in this manual are classified for use as
stationary equipment in a Pollution Degree 2 and Over voltage
Category II environment.
These units are designed to operate under the following
environmental conditions:
• Indoor use.
• Altitude up to 2000 m.
• Maximum relative humidity 60% for temperatures within
15°C to 32°C (59°F to 90°F).
• Main supply voltage fluctuations not to exceed ±10% of
the nominal voltage for 115 V/60 Hz, 230 V/50 Hz &
200V/60Hz.
• Main supply voltage fluctuations not to exceed -10% or
+6% of the nominal voltage for 208-230 V/60 Hz.
• Main supply voltage fluctuations not to exceed -5% or
+10% of the nominal voltage for 100 V/60 Hz.
Electrical Specifications
The last character in the model number listed on the
data-plate identifies the electrical specifications for your unit.
Specific unit current rating is listed on the data-plate.
The voltage types are A, D, V, L & K as specified in the
following table:
* Values subject to change
Table 2. Electrical Specifications by Size and
Voltage
Size/
Voltage Voltage Frequency Current*
063A 115 V 60 Hz 10.7 A
063V 230 V 50 Hz 5.6 A
063L 100 V 60 Hz 10.7 A
252A 115 V 60 Hz 11. 2 A
252D 208-230 V 60 Hz 5.4 A
252V 230 V 50 Hz 5.2 A
252K 200 V 60 Hz 5.4 A
396A 115 V 60 Hz 13.6 A
396D 208-230 V 60 Hz 5.8 A
396V 230 V 50 Hz 5.5 A
396K 200 V 60 Hz 5.8 A
Table 2. Electrical Specifications by Size and
Voltage (Continued)

10 | Installation Thermo Fisher Scientific ULT Freezers
Installation
The safety of any system incorporating this equipment is the
responsibility of the assembler of the system.
Location
Install the unit in a level area free from vibration with a
minimum of 8" (20 cm) of space on the sides, and
6" (15 cm) in back. For Upright cabinets, allow 8" (20 cm) of
space on the top and for Chest cabinets, allow 6" (15 cm) of
space in the front. Refer to Leveling for further instructions
on leveling cabinets. Allow enough clearance so that door/lid
can swing open at least 85°.
The rear spacing posts provided with the freezer can be used
to ensure proper clearance. To install the spacing posts,
screw them into the back side of the unit, in the rear deck
area.
Do not position the equipment in direct sunlight or near
heating diffusers, radiators, or other sources of heat. The
ambient temperature range at the location must be
15°C to 32°C (59°F to 90°F).
Protective Conductor
current
The maximum limit of 10mA shall not be exceeded when
tested according to clause 5.5 (Measurement of protective
conductor current) of EN 50678 or DIN VDE 0701-1 or DIN
EN 50678 VDE 0701.
Wiring
Note: Any external electrical equipment connected to these
chest freezers must meet the insulation requirements of
IEC 61010-1.
WARNING: Do not exceed the electrical rating
printed on the data plate located on the lower
left side of the unit.
WARNING: Use care when closing the door/lid
so that fingers are not pinched between cabinet
and door/lid.
CAUTION: Connect the equipment to the
correct power source. Incorrect voltage can
result in severe damage to the equipment.
CAUTION: For personal safety and trouble-free
operation, this unit must be properly grounded
before it is used. Failure to ground the equipment
may cause personal injury or damage to the
equipment. Always conform to the National
Electrical Code and local codes. Do not connect
the unit to overloaded power lines.
CAUTION: Do not position the unit in a way that
impedes access to the disconnecting device or
circuit breaker in the back of the unit.
CAUTION: Always connect the freezer to a
dedicated (separate) circuit. Each freezer is
equipped with a service cord and plug designed
to connect it to a power outlet which delivers the
correct voltage. Supply voltage must be within
±10% of the freezer rated voltage for
115 V/60 Hz, 230 V/50 Hz, & 200 V/60Hz.
Supply voltage must be within -10% to +6% of
the freezer rated voltage for 208-230 V/60 Hz.
Supply voltage must be within -5% to +10% of
the freezer rated voltage for 100 V/60 Hz. If cord
becomes damaged, replace with a properly rated
power supply cord.
Table 3. Power Cord Specification
Model Power Cord Specification
A 3-G 12 AWG, NEMA 5-20P, 20 A/125 V
D 3-G 12 AWG, NEMA 6-15P, 15 A/250 V
V 3-G 1.5 mm², CEE 7/7, 16 A/250 V
CAUTION: Never remove or disable the
grounding prong from the service cord plug. If the
prong is removed, the warranty is invalidated.

Thermo Fisher Scientific ULT Freezers Installation | 11
Leveling
Make sure that the floor is level. The unit must be level both
front to back and side to side.
Ensure to lock the brakes for units equipped with casters.
Ice Scraper
Remove the packing and make sure the scraper and
magnetic hook are in good condition.
Do not use a damaged scraper as it may cause injury.
Use the magnetic hook to hang the scraper on the unit of
convenience. The magnetic hook should be placed in the
recommended area on either side of the unit as shown in
figure 2
Figure 2. Ice scraper
Backup System (Optional)
If you are using a CO2 or LN2 backup system, refer to
Backup System (Optional) for installation and operation
instructions.
Door Operation
Chest freezer models are equipped with a lid and handle for
ultra-low temperature freezers.
Features include:
a. One-hand operation
b. A front-accessible lock
Installing the Remote
Alarm Connector
The remote alarm contacts are located on the back of the
freezer above and to the left of the power switch. After
installing the wiring from the remote alarm to the connector,
install the connector to the freezer micro-board.
The pin configuration is shown in Figure 3 below.
Figure 3. Remote Alarm Pin Configuration
For systems that alarm in closed state, connect to pins 5 & 6.
For systems that alarm in open state, connect to pins 6 & 7.
The contacts will trip in the event of a power outage, high
temperature alarm, low temperature alarm or door ajar alarm.
Intended Use:
The -86°C ultra-low temperature freezers are intended for the
storage and preservation of blood cells and blood
components between -50°C and -86°C stored in suitable
closed containers. The blood cells and blood components
may be reintroduced into the human body. Additionally, the
ULTs may be used for pharmaceutical and Vaccine between
-50°C and -86°C.
The ULTs are intended to be used by medical and laboratory
professionals. The ULTs are for use in a clinical laboratory
environmental.
The ULTs are contraindicated for samples not compatible
with the environmental storage conditions this product is
designed to maintain
Essential Performance of this equipment is considered to be
Maintaining temperature of the Clinical samples (Red blood
cells, Plasma etc) and Vaccine/Pharmaceuticals as per
storage condition.

12 | Operation Thermo Fisher Scientific ULT Freezers
Operation
If the equipment is used in a manner not specified by the
manufacturer, the protection provided by the equipment may
be impaired.
Initial Start Up
To start the freezer, complete the following steps:
1. Plug the freezer into the power outlet.
2. Turn the power switch ON. You can find the switch
behind the front grille, on the left side.
3. Once the freezer is turned ON, the user interface will
begin a start up procedure. Once ready for operation, the
temperature is displayed on the screen.
Operation Overview
Once you have successfully completed the initial start up
procedures, the freezer starts operating normally and the only
actions required are:
• Setting the operating and alarm set points.
• Activating the CO2 or LN2 backup system if installed. For
instructions on backup settings and activating the
system, refer to Backup System (Optional).
Display
The display screen below is the default screen.
Figure 4. Display
The control panel consists of the 5 touch-point buttons
located on the right side of the display.
•Warm Alarm value - The range of the warm alarm
temperature is –40°C to within 5°C of setpoint.
Note : The warm alarm will be disabled for 12 hours
from a warm start condition.
•Cold Alarm value - The range is –99°C to within
5°C of setpoint.
Note : A setpoint change may automatically change
the warm/cold alarm setpoints as well to maintain a
minimum 5°C separation from the control setpoint.
•Offset value - This is used for calibration. Range is
–10°C to +10°C. Default is 0.
Entering a positive offset value will yield a colder
cabinet temperature.
Entering a negative offset value will yield a warmer
cabinet temperature.
•Setpoint security code – This code is a 3-digit
numeric code. Refer to Setpoint Security.
•Backup system type (if backup system is installed)
– Set the type to either LN2 or CO2 corresponding to
the backup system that is installed.
•Backup system setpoint (if backup system is
installed) - This setpoint indicates the temperature at
which the backup system will begin cooling the
cabinet. It is recommended to set the backup system
setpoint at a minimum of 10°C warmer than the
control setpoint. For more information, refer to
Backup System (Optional).
1. Alarm Bell – This icon indicates visual and
audible alarm that accompanies various alarm
states. Pressing the alarm bell while in an alarm
state will snooze the audible alarm for
10 minutes.
2. Plus – Increases the value of the selected setting.
3. Check Mark – Saves a change to the selected
value.
4. Minus – Decreases the value of the selected
setting.
5. Settings – The settings icon represents the
various settings including:

Thermo Fisher Scientific ULT Freezers Operation | 13
The message panel on the top indicates freezer health status
and the various alarm or warning states.
Settings
If setpoint security is enabled, you must first enter the security
code to make any setpoint changes. Refer to Setpoint
Security to adjust setpoint security.
Control Setpoint
To modify the control temperature setpoint:
• Press the plus or minus button while displaying unit
temperature (“Actual” is illuminated). The control setpoint
is displayed
• Adjust setpoint to desired temperature
• Select the checkmark button to save the new control
setpoint.
Other Setpoints and Settings
• Press the settings button to enter Settings menu
• Continue pressing the settings button until the desired
setting is illuminated on lower horizontal panel. (If backup
system is installed, CO2 or LN2 is displayed after pressing
the settings button 5 times.)
• Adjust the setting to desired temperature or value using
the plus or minus buttons
• Press the checkmark button to save the new
temperature or value
• After the value is saved, display will show the next option
in the settings menu.
To return to the unit temperature display:
• Press the settings button until unit temperature is
displayed (“Actual” is illuminated)
• If there is no activity after 5 minutes, the unit will
automatically return to the temperature display.
Warm Alarm Test
Press the plus and checkmark buttons at the same time to
initiate the warm alarm test. During the warm alarm test, the
actual cabinet temperature will not be displayed. The display
temperature will increase. Once the display temperature
reaches the warm alarm setpoint, the alarm is activated. After
5 seconds, the test will automatically end and the display will
return to the actual cabinet temperature.
Setpoint Security
• To adjust setpoint security in the settings menu, press the
settings button 4 times
• The setpoint security code consists of 3 digits, each of
which must be set in sequence from left to right
• Use the plus or minus button to adjust each value, and
the checkmark button to save each value of the 3-digit
security code
Figure 5. Set point
• If you forget the setpoint security code, contact customer
support.
1. Wrench – This is a generic service warning which
corresponds to an intermittent flashing error code
displayed on the screen. Refer to Error Codes
for a list of error codes.
2. Door – This icon will illuminate during a door ajar
alarm. A door open for more than 3 minutes will
result in an audible door ajar alarm.
3. Heart – The heart is the health status for the
freezer. A green heart indicates normal freezer
operation. In an alarm state, this icon is not
illuminated.
4. Thermometer – This indicates when the cabinet
temperature exceeds either warm alarm or cold
alarm setpoints and the audible alarm will occur.
5. Snooze Bell – This is only illuminated during an
active alarm that has been silenced by the user.

14 | Operation Thermo Fisher Scientific ULT Freezers
Power Down
To power down the ULT, first turn the breaker switch, located
behind the front grille, to the off position. Once the switch is in
the off position, the display will show “OFF” followed by “YES”
and then “NO” in 2 second intervals. The checkmark will also
be illuminated while “YES” and “NO” are showing. Press the
checkmark while “YES” is showing. With a flashing “YES”, you
are required to confirm by pressing the checkmark button a
second time. Power down will then be complete.
If the checkmark button is pressed while “NO” is illuminated
or if no action is taken for 5 minutes, this is interpreted as a
power failure. In this case, the user interface will stay on (using
battery power only) and an audible alarm will sound to
indicate power failure. If installed, the backup system will
remain active and inject per the backup system settings.

Thermo Fisher Scientific ULT Freezers Ice Scraper Instruction | 15
Ice Scraper Instruction
Purpose
The ice scraper is used to scrape any frost accumulated on
the cabinet breaker and other hard surfaces inside the
freezer.
It is recommended that the ice scraper is used every month
to obtain the best performance of the freezer.
To help minimize ice build-up, try to move samples in and out
as quickly as possible.
Informational Notice
The ice scraper should not be used as any other tool and for
any other purpose except for scraping hard surfaces.
Do not use the scraper as a tool to open the door before the
PEP time expires.(Uprights only).
Precautions and Usage
• Read the following instructions carefully, since they
provide useful safety information about installation, use
and maintenance to help avoid mishaps and possible
accidents.
• Remove the packing and make sure the scraper and
magnetic hook are in good condition.
• Do not use a damaged scraper as it may cause injury.
• Use the magnetic hook to hang the scraper on the unit
for convenience. The magnetic hook should be placed in
the recommended area on either side of the unit as
shown in Figure 2.
• Use the scraper provided with your equipment to scrape
the ice or frost formed on the cabinet breaker and other
hard surfaces inside the freezer.
• To prevent gasket damage, do not use the scraper on the
gasket.
• To remove the ice from the gasket, refer to the Gasket
Maintenance section.
CAUTION: Do not misuse the scraper for any
purpose other than the defined purpose.
CAUTION: The manufacturer cannot be
responsible for any damages deriving from
improper, wrong or incautious use.