Thermo Scientific TSX Series Owner's manual

-20°C Flammable
Materials Storage
Laboratory Freezers
TSX Series
Installation and Operation
332192H01 Rev. A May 2021
Visit us online to register your warranty
www.thermofisher.com/labwarranty

 Read this instruction manual. Failure to follow the instructions in this manual can result
in damage to the unit, injury to operating personnel, and poor equipment performance.
 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.
© 2021 Thermo Fisher Scientific Inc. All rights reserved.
For your future reference and when contacting the factory, please have the following information readily
available. It can be found on the dataplate attached to your unit.
Model Number:
Serial Number:
The following information, if available, is helpful for contacting the factory.
Date Purchased:
Purchase order number:
Source of Purchase:
(manufacturer or specific agent/rep organization)

Contents
Introduction..............................................................................1
Models.................................................................................. 1
Safety Precautions....................................................................2
Unpacking.................................................................................6
Packing List ..............................................................................7
General Recommendations .....................................................8
Temperature Monitoring ...................................................... 8
Intended Use ........................................................................ 8
Operating Standards ...............................................................9
Unit Specifications............................................................... 9
Installation..............................................................................10
Location ............................................................................. 10
Wiring ................................................................................ 11
Shelves ............................................................................... 12
Drawers .............................................................................. 12
Baskets ............................................................................... 17
Temperature Sensor Bottles (if present) ............................ 17
Door Operation .................................................................. 18
Remote Alarm (Optional) .................................................. 18
Final Checks....................................................................... 19
Startup ....................................................................................20
Initial Startup...................................................................... 20
Product Loading and Unloading Guidelines...................... 21
Operation................................................................................22
Control Panel...................................................................... 22
Display Functions .............................................................. 24
Programming Functions..................................................... 25
Service Parameters............................................................. 25
Temperature Settings ......................................................... 28
Alarms................................................................................ 28
Temperature Transmitter (Optional) ..................................29
Powered Temperature Transmitter..................................... 29
Unpowered Temperature Transmitter................................ 29
Maintenance ...........................................................................30
Cleaning the Cabinet Interior............................................. 30
Cleaning the Condenser Filter............................................ 30
Cleaning the Condenser ..................................................... 30
Defrost............................................................................... 31
Gasket Maintenance........................................................... 32
Alarm Battery Maintenance ............................................... 32

Preparation for storage ....................................................... 32
Troubleshooting .....................................................................33
End of Life Care.....................................................................35
Warranty ................................................................................36

Introduction
Thermo Scientific TSX -20°C Flammable Materials Storage Laboratory Freezers 1
1 Introduction This manual provides installation and operation instructions for Flammable
Material Storage (FMS) laboratory freezers with a preset temperature setpoint of
-20°C.
1.1 Models The table below shows the units covered in this operation and installation
manual by model number. Refer to Section 6.1 for details on the voltage
specifications for the various models.
Table 1. Applicable Models
Unit Model (*) Energy Star
Model (*)
TSX2320H*A

Safety Precautions
2 TSX -20°C Flammable Materials Storage Laboratory Freezers Thermo Scientific
2 Safety Precautions Conventional freezers are not suitable for storing flammable materials. Such units
have components in their electrical and refrigeration systems that can trigger
explosions of flammable air and vapor mixtures inside the unit.
Flammable Material Storage (FMS) freezers have no internal components that
could trigger an explosion or fire inside the unit. FMS freezers are designed for
use in locations which are not classified as hazardous by the Authority Having
Jurisdiction (AHJ). Under normal operating conditions, the buildup or presence
of flammable vapors will not occur in the environment outside the unit.
In this manual, the following symbols and conventions are used:
This symbol when used alone indicates important operating instructions which
reduce the risk of injury or poor performance of the unit.
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.
WARNING: This symbol indicates potentially hazardous situations, which
if not avoided could result in fire.
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.
CAUTION: This indicates a situation which may result in property
damage.
This symbol indicates surfaces which may become hot during use and may cause
a burn if touched with unprotected body parts.
Before installing, using or maintaining this product, please be sure to read the
manual and product warning labels carefully. Failure to follow these instructions
may cause the product to malfunction, which could result in injury or damage.
This symbol indicates possible pinch points which may cause personal injury.
The snowflake symbol indicates low temperatures and risk of frost bite. Do not
touch bare metal or samples with unprotected body parts.

Safety Precautions
Thermo Scientific TSX -20°C Flammable Materials Storage Laboratory Freezers 3
This symbol indicates a need to use gloves during indicated procedures. If
performing decontamination procedures, use chemically resistant gloves.
Below are important safety precautions that apply to this product:
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
the equipment is used in a manner not specified by the manufacturer, the
protection provided by the equipment may be impaired.
FMS units are NOT designed for use in Class I, Division 1 classified
environments, which require explosion-proof models.
WARNING: Risk of Fire. Keep away from open flames and ignition
sources. FMS units are designed for use in laboratory environments with
adequate ventilation.
WARNING: Risk of Injury. The port hole in back of the unit allows the
use of redundant temperature monitoring devices. All probes introduced
into the cooling chamber MUST be suitable for use in Class I, Division 1
environments.
WARNING: Use appropriate Personal Protective Equipment (PPE) while
handling the materials to avoid possible injury. Operators should be trained
in the handling of all potentially hazardous materials.
Always store flammable materials in closed containers. Follow the Standard
on Fire Protection for Laboratories Using Chemicals, NFPA 45-2011,
Clause 10.5.2.
WARNING: Risk of Shock. Your unit must be properly grounded in
conformity with national and local electrical codes. Do not connect the unit
to overloaded power sources.
WARNING: Risk of Shock. Disconnect the unit from all power sources
before cleaning, troubleshooting, or performing other maintenance on the
product or its controls.
WARNING: Risk of Fire. This unit is charged with hydrocarbon
refrigerants. Only qualified service personnel should service this unit.

Safety Precautions
4 TSX -20°C Flammable Materials Storage Laboratory Freezers Thermo Scientific
WARNING: Risk of Fire. No equipment that uses an open flame should be
placed inside the freezer. This will harm the unit, hamper functionality and
compromise your safety.
CAUTION: Risk of Fire. Do not use any battery powered or
externally-powered equipment in the freezer.
CAUTION: Risk of Abrasion. Hidden sharp edges may be present on
drawers. Use appropriate Personal Protective Equipment (such as gloves)
while handling the drawers to avoid possible sharp points related injury.
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.
CAUTION: Unauthorized repair of your freezer will invalidate your
warranty. Contact Technical Service at 1-800-438-4851 for additional
information.

EMC Registration is done on this equipment for business 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.
This ISM device complies with Canadian ICES-001.

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.

Unpacking
Thermo Scientific TSX -20°C Flammable Materials Storage Laboratory Freezers 5
3 Unpacking At the time of delivery, be sure to inspect the unit packaging for damage before
signing for the shipment. If packaging damage is present, request immediate
product inspection and file a claim with the carrier.
Note Packaging damage does not denote that unit damage exists.
If concealed damage is found (damage that is not apparent until the item has
been unpacked), stop further unpacking and save all packing for carrier's
inspection. Make a written request for inspection to delivering carrier. This must
be done within 15 days after delivery. Then file a claim with the carrier.
Do not return goods to the manufacturer without written authorization.

Packing List
6 TSX -20°C Flammable Materials Storage Laboratory Freezers Thermo Scientific
4 Packing List Inside the freezer cabinet is a bag containing:
• Essential safety instructions
• Certificate of Conformance
• Warranty Card
• Quick start guide
• Two control panel keys
• Two cabinet door keys
• Safety Data Sheet for Glycerin
If the unit was ordered with shelves, the bag will also include:
• Small bag with shelving clips
If specified on the order, the bag may also include:
• QC temperature graph and test log
• Calibration information
Other items with your unit include:
• Power Cord
• Baskets, Shelves or Drawers
• Thermal Bottle (some models)
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Note: To download the complete Installation and Operation Manual for
the unit, please visit: https://www.thermofisher.com/usermanuals