Thermo Scientific TSC Series User manual

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User Manual
Thermo Scientific TSC Series
-40C and -86C Chest Freezer
Operating and Maintenance Manual 7028763 Rev. 9

Thermo Scientific
MA UAL UMBER 7028763
9 31514 8/25/17 Updated drawing 195967-90-1 bpg
8 41370 6/01/17 Updated BUS board info bpg
7 41159/40543 5/15/17 Corrected D-vot rating, -gas statements bpg
7 41347/41348/41349 5/15/17 Removed AS400 model numbers, corrected operating range, A-volt rating bpg
6 40473/ R-2854 6/14/16 Updated start component encl dwg, electrical schematics - Zettler relay ccs
Preface
TSC Series i
-86C Models Covered
umber Cu. ft. Voltage
TSC390A 3 120/60
TSC390V 3 230/50
TSC1390V 12.7 230/50
TSC1390D 12.7 208-230/60
TSC1390A 12.7 120/60
TSC1790A 17 120/60
TSC1790V 17 230/50
TSC1790D 17 208-230/60
TSC2090V 20 230/50
TSC2090D 20 208-230/60
TSC2090A 20 120/60
Part o. Description Qty
213 Key 2
380520 Neoprene Cap 2
510016 1/4-20 x 5-1/2” Bolt 2
195763 Retaining Clip 1
370563 Remote Alarm Connector 1
Packing List
-40C Models Covered
umber Cu. ft. Voltage
TSC350A 3 120/60
TSC350V 3 230/50
TSC1350V 12.7 230/50
TSC1350D 12.7 208-230/60
TSC1350A 12.7 120/60
TSC1750A 17 120/60
TSC1750V 17 230/50
TSC1750D 17 208-230/60
TSC2050V 20 230/50
TSC2050D 20 208-230/60
TSC2050A 20 120/60
Important installer and user information:
A redundant temperature sensing device has been included in this ULT
freezer. This device is a type “T” thermocouple. For convenient access,
the thermocouple (Figure 1-3) terminates in an interconnect jack
(Figure 1-5) behind the base front cover. (May be located differently in
chests. See Section 1.) It is strongly recommended that this thermocou-
ple be attached to a redundant 24 hour 7 day monitoring system with
alarm capabilities. Connecting the sensor to a monitoring and alarm sys-
tem separate from the freezer provides the utmost in product safety,
should the integral system fail. s

Thermo Scientificii TSC Series
Preface
Contains Parts and Assemblies
Susceptible to Damage by
Electrostatic Discharge (ESD)
CAUTION
Important Read this instruction manual. Failure to read, understand and follow the instructions in this manual
may result in damage to the unit, injury to operating personnel, and poor equipment performance. s
Caution All internal adjustments and maintenance must be performed by qualified service personnel. s
Material in this manual is for information 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 out of or related
to the use of this manual.
The -40C and -86C freezers (see page i for model numbers) described in this manual are high performance
units which can be used for research and in situations that directly support medical applications. When these
products are used to support a medical application, it is an accessory to a medical device and is therefor
considered as a medical device in its own right by the regulatory body ( e.g. FDA).
This product is intended for use:
• as cold storage in research use
• as a medical device for diagnostic use (storage of samples not intended to be re-introduced to the human
body).
Registration: This medical application is considered a Class I device by the FDA. This product is classified as
product code - JRM, regulation number 862.2050 and is considered a Class I device, 510(K) exempt.
© 2013 Thermo Fisher Scientific. All rights reserved.

TSC Series iiiThermo Scientific
Preface
Important operating and/or maintenance instructions. Read the accompanying text carefully.
Potential electrical hazards. Only qualified persons should perform procedures associated with this
symbol.
Equipment being maintained or serviced must be turned off and locked off to prevent possible injury.
Extreme temperature hazards, hot or cold. Use special handling equipment or wear special, protective
clothing.
WEEE Compliance: Thermo Fisher Scientific has contracted with companies for recycling/disposal in
each EU Member State. For further information, send an email to [email protected].
4Always use the proper protective equipment (clothing, gloves, goggles, etc.)
4Always dissipate extreme cold or heat and wear protective clothing.
4Always follow good hygiene practices.
4Each individual is responsible for his or her own safety.

Thermo Scientificiv TSC Series
Preface
Do You Need Information or Assistance on
Thermo Scientific Products?
If you do, please contact us 8:00 a.m. to 6:00 p.m. (Eastern Time) at:
1-740-373-4763 Direct
1-800-438-4851 Toll Free, U.S. and Canada
1-877-213-8051 FAX
http://www.thermofisher.com Internet Worldwide Web Home Page
[e-mail] Tech Support Email Address
Certified Service Web Pagewww.unitylabservices.com
Our staff can provide information on pricing and give you quotations. We canSales Support
take your order and provide delivery information on major equipment items or make
arrangements to have your local sales representative contact you. Our products are listed on the
Internet and we can be contacted through our Internet home page.
Our staff can supply technical information about proper setup, operation orService Support
troubleshooting of your equipment. We can fill your needs for spare or replacement parts or
provide you with on-site service. We can also provide you with a quotation on our Extended
Warranty for your Thermo Scientific products.
Whatever Thermo Scientific products you need or use, we will be happy to discuss your
applications. If you are experiencing technical problems, working together, we will help you
locate the problem and, chances are, correct it yourself...over the telephone without a service
call.
When more extensive service is necessary, we will assist you with direct factory trained
technicians or a qualified service organization for on-the-spot repair. If your service need is
covered by the warranty, we will arrange for the unit to be repaired at our expense and to your
satisfaction.
Regardless of your needs, our professional telephone technicians are available to assist you
Monday through Friday from 8:00 a.m. to 6:00 p.m. Eastern Time. Please contact us by
telephone or fax. If you wish to write, our mailing address is:
Thermo Fisher Scientific (Asheville) LLC
401 Millcreek Road, Box 649
Marietta, OH 45750
International customers, please contact your local Thermo Scientific distributor.

TSC Series vThermo Scientific
Table of Contents
Installation and Start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Control Panel Keys, Display, Indicators . . . . . . . . . . . . . . . . . . . . . . .1-5
Install Freezer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-7
Displays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
RS-232 Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8
Install Wall umpers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-8
Choose Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8
Remote Alarm Contacts and Analog Output . . . . . . . . . . . . . . . . . 1-9
Connect Unit to Electrical Power . . . . . . . . . . . . . . . . . . . . . . . . . 1-10
Attach Power Cord . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10
Freezer Start-Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-11
Set Operating Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-11
Set Low Temperature Alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12
Set High Temperature Alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12
Access Code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13
Run Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13
Calibrate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Calibrate Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Calibrate Control Probe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Low Alarm Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
High Alarm Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1
US attery Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
System attery Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Set Access Code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
Clear High Stage Alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
Display Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-3
ack Up System Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-4
RS485 Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
Reset Excursion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
Warm Excursion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
Cold Excursion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
Section 1
Section 2
Section 3

vi TSC Series Thermo Scientific
Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Lost Communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
Micro oard Failure Alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
Multiple Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-2
High Stage System Failure Alarm . . . . . . . . . . . . . . . . . . . . . . . . . .4-2
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
Clean Air Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
Clean Condenser . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
Defrost Chamber . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
Clean Lid Gasket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
Prepare Unit for Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
Replace attery(s) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3
Check attery(s) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4
PREVENTIVE MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . .5-5
Factory Installed Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-1
ack Up System ( US) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
Install Injection Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
Install Temperature Probe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-2
Connect Probe/Solenoid Harness . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4
US Control Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4
Configure Optional ack Up System ( US) . . . . . . . . . . . . . . . . . .6-7
Set Optional US Set Point . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7
Test the US . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-8
Disconnect Fitting Assembly, Transfer Hose . . . . . . . . . . . . . . . . . 6-8
Chart Recorder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-8
Install Chart Paper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-8
Change Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-9
Calibrate Chart Recorder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-9
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1
Exploded Parts Drawings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1
Refrigeration Schematics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1
Electrical Schematics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-1
Warranty Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-1
Handling Liquid itrogen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A -1
Handling Liquid CO2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A -4
irst Aid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C - 1
Table of Contents
Section 4
Section 5
Section 6
Section 7
Section 8
Appendix
Section 9
Section 10
Section 11

TSC Series 1-1Thermo Scientific
Section 1 Installation and Start-up
Figures 1-1 and 1-2 show the front view of the freezer and indicate the
following freezer components:
• Control Panel - keypad, displays and indicators.
• US (Optional ack Up System) panel.
• Optional temperature recorder (7 day, one pen) or datalogger.
• Keylock - keyed lid lock.
Optional Back Up
System Controls
Control Panel
Optional
Datalogger
or Recorder
Key lock
Figure 1-1. ront View 3 cu ft Models
EnviroScan
Control
Optional
BUS Control
Keylock
Optional Recorder
or Datalogger
Figure 1-2. ront View Remaining Models

1-2 TSC Series Thermo Scientific
Section 1
Installation and Start-up
Figures 1-3 and 1-4 display the rear view of the freezer and indicate the
following freezer components:
• Remote alarm contacts and selectable analog output connection - 0-
1V, 4-20mA (default), 0-5V).
• Power inlet for power cord connection.
• Optional US connections for probe and solenoid.
• RS-232 or RS-485 interface.
• Power Switch (mains disconnect).
Optional BUS battery
(just behind this panel)
Optional
BUS Connections
RS-232 or RS-485
Interface
Remote Alarm Contacts
and Analog Output
Power Switch
(mains disconnect)
Power Inlet
Threaded holes for
wall bumpers
Access Port
Figure 1-3. Rear View 3 cu ft Models
Threaded holes for
wall bumpers
Remote Alarm Contacts
and Analog Output
Optional
BUS Connections
Power Inlet
Power Switch
(mains disconnect)
RS-232 or RS-485
Interface
Figure 1-4. Rear View Remaining Models
Access Port

TSC Series 1-3Thermo Scientific
Section 1
Installation and Start-up
The probe cover houses the control, optional recorder, datalogger, or US
probes.
Figures 1-6, 1-7, and 1-8 indicate the following components:
• Freezer filter location
• attery power switch (freezer and US)
• Thermocouple receptacle
• attery mounting bracket
• Freezer and optional US battery
T
Figure 1-5. Probe Cover
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To remove
filter
Thermocouple
interconnect jack
O
Battery
Switch
Condenser
Figure 1-6. All Models Except 3 cu ft

1-4 TSC Series Thermo Scientific
Section 1
Installation and Start-up
micro
board
battery
bracket
battery
switch
probe
access
port
Figure 1-7. reezer Left Side - Sidecar panel removed
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System
battery
Battery
switch
Thermocouple
interconnect jack
To
remove filter
Figure 1-8. 3 cu ft Models

Mode Select Switch - Used to select Run, Settings, Calibrate and System
Configuration Modes.
Mode Select Indicators -
Run: Run Menu
Settings: Set Points Menu
Calibrate: Calibrate Menu
Configuration: Configuration Menu
Temperature Display - Displays temperature in degrees Celsius.
Alarm Indicator - Light pulses on/off during an alarm condition.
Silence - Mutes the audible alarm.
Low attery - indicates a low battery condition of the freezer battery.
Hot Condenser - indicates a hot condenser condition.
Message Center - displays system status and alarms.
Scroll for Parameters Arrows - moves through the choices of the selected
mode.
Up and Down Arrows - Increases or decreases values, toggles between
choices.
Enter - Stores the value into computer memory.
TSC Series 1-5Thermo Scientific
Section 1
Installation and Start-up
SYSTEM OK
Mode
Temp Display Visual Alarm
Indicator
Silence
Low Battery
Indicator
Hot Condenser
Indicator
Message
Center
Scroll for Parameters
Arrows Up and Down
Arrows
Enter
Figure 1-9. Control Panel Keys, Display and Indicators
Control Panel Keys,
Display, Indicators

TSC Series freezers have four basic modes which allow freezer setup: Run,
Settings, Calibrate and Configuration.
Run is the default mode which the freezer will normally be in during
operation.
Settings is used to enter system set points for freezer operation.
Cali rate is used to calibrate various system parameters.
Configuration allows for custom setup of various options.
The chart below shows the selections under each of the modes.
1-6 TSC Series Thermo Scientific
Section 1
Installation and Start-up
Table 1-1. Modes of Operation
Panel Keys, Display,
Indicators (cont.)
Run Settings Calibrate Configuration
Default Mode
System Ok Control Set Point Control Probe High Alarm Test
Line Voltage High Alarm Set Point Optional Sample
Probe Low Alarm Test
Compensated Voltage Low Alarm Set Point System Battery Test
* HSHX Temperature Optional Back Up
System Set Point BUS Battery Test
Display Temperature
* Clear High Stage
Alarm
Set Access Code
RS485 Address
BUS type CO2 or LN2
Cold Excursion
Warm Excursion
Reset Excursion
* -86C units only

Scroll for Parameters Arrows: Steps the operator through the parameters
of Settings, Calibrate and Configuration Modes. The right arrow goes
to the next parameter, the left arrow returns to the previous parameter.
Up Arrow: Increases or toggles the parameter value that has been selected
in the Settings, Calibrate, and Configuration Modes.
Enter: Must press Enter key to save to memory all changed values.
Down Arrow: Decreases or toggles the parameter values that have been
selected in the Settings, Calibrate, and Configuration Modes.
Silence Key: Press to mute the audible alarm. See Section 4 for alarm
ringback times.
Message Center: Displays the system status (Mode) at all times. Displays
SYSTEM OK during normal operation, or alarm messages if the system
detects an alarm condition. See Section 4 - Alarms.
There are two displays on the control panel. The temperature display
shows the temperature in degrees Celsius. The message center displays the
system status (Mode) at all times. The message SYSTEM OK displays
during normal operation. Alarm messages are displayed if the system
detects an alarm condition. See Section 4 - Alarms.
To remove the freezer from the pallet, use a 7/16" wrench to remove all
the bolts securing the shipping bracket to the pallet.
ote If tipped more than 45°, allow the unit to set upright for 24 hours
before start up. s
Remove the shipping bracket. Remove the ramp boards from the pallet
and place the slotted end over the ramp brackets on the pallet. The
support blocks on the ramps will be facing down. efore moving the
freezer, make sure the casters are unlocked and moving freely. Align the
caster with the ramp boards. Use adequate personnel to roll the freezer off
the pallet.
The freezer can be easily pushed to the desired approved location, as
described previously. When the freezer is in position, set the front caster
brakes.
ote Do not move the freezer with the product load inside. s
TSC Series 1-7Thermo Scientific
Section 1
Installation and Start-up
Displays
Install Freezer
Panel Keys, Display,
Indicators (cont.)

Locate the freezer on a firm, level surface in an area with an ambient
temperature between 18°C and 32°C. Provide ample room to reach the
mains disconnect switch (power switch) located on the rear of the freezer.
ote For proper ventilation and airflow, a minimum clearance of 5” at the
rear and front and a clearance of 8” on the side of the freezer is required.
Allow adequate space for lid opening. If ambient increases above 36°C,
clearance at the rear of the cabinet must be increased to 8”. s
The parts bag, located inside the cabinet, contains the following parts.
Install the bolts into the pre-tapped holes on the back of the compressor
section. Install a neoprene cap on each bolt. Refer to Figure 1-2 for the
locations of the pre-tapped holes.
TSC Series freezers have a data communications interface. The factory
default setting is RS-232.
The wiring identification for the interface is
shown in Figure 1-10. One nine pin, sub
"D" style connector is located on the back
of the freezer. See Figure 1-2 for the
location of the connector on the freezer.
The freezer transmits temperature information every 60 minutes. A
standard D 9 serial extension cable can be used to connect the freezer to a
serial device. Some serial devices may require a null modem adapter.
Data format:
aud . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1200
Data bits . . . . . . 8 (7 bit ASCII with leading zero)
Start bits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Stop bits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Parity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . none
1-8 TSC Series Thermo Scientific
Section 1
Installation and Start-up
Quantity Stock # Description Purpose
2 510016 1/4-20 x 5-1/2” Bolt Wall Bumper
2 380520 Neoprene Cap Cap Protector
Choose Location
Install Wall Bumpers
RS-232 Communications
Figure 1-10. RS-232 Interface

The data transfer sequence is transmitted in the following format. X refers
to numerical temperature data.
(NUL) (-) XXX (SP) C (SP) (Error Message) (SP) (LF) (CR) (EOT) (SP)
In the event of a CNTRLFAIL, Er07, or the control probe is out of range
error, the numerical temperature data (XXX) in the transmission would be
replaced by T_ERR.
If no alarm condition exists, spaces will be sent. A total of 20 characters
will be sent.
SP - Space LF - Line feed
CR - Carriage return EOT - End of text (4)
NUL - Null character (00)
If an alarm condition does exist, “Error Message” in the protocol will be
replaced by the following:
UNDERTEMP (temperature above the low alarm setpoint)
OVERTEMP (temperature below the high alarm setpoint)
PWRFAIL (AC power failure)
CNTRLFAIL (Control probe failure)
Er07 (micro failure)
* HSHX FAIL (Heat exchanger failure)
HOT COND (Hot condenser)
ote The RS-232 is not compatible with Model 1535 Monitor/Alarm
System. s
* -86C units only
TSC Series freezers have remote
alarm contacts and analog output.
See Figures 1-3 and 1-4 for the
location of the remote alarm
contacts. The remote alarm
connector is located in the parts bag
provided with the manual. It must
be installed if connecting the freezer
to an alarm system. After installing
the wiring from the alarm system to the connector, install the connector to
the freezer microboard and secure with the two screws provided. The
remote alarm provides a NO (normally open) output, a NC (normally
closed) output and COM (common). The contacts will trip on a power
outage, high temperature alarm or low temperature alarm. They will also
trip on high stage (-86C units only), control probe and microboard
failures. Figure 1-11 shows the remote contacts in alarm state.
TSC Series 1-9Thermo Scientific
Section 1
Installation and Start-up
Remote Alarm Contacts
and Analog Output
Figure 1-11. Remote Alarm Contacts
RS-232 Communications
(continued)

The analog output function allows the
freezer to output signals representing
the temperature of the freezer cabinet.
The factory default setting is 4-20 mA.
Refer to Table 1-2 for output
specifications.
Insert the power cord into the power inlet module. Place the retaining
bracket (P/N 195763) over the connector. Tighten retaining screws to
secure.
ote See the serial tag on the side of the unit for electrical specifications or
refer to the electrical schematics in this manual. s
The freezer should be operated on a dedicated, grounded service. Check
the voltage rating on the serial tag of the unit and compare it with the
outlet voltage. Then, with the power switch turned off, plug the line cord
into the wall outlet.
First, turn on the freezer power switch. Then open the lower front door by
grasping the bottom left corner. Locate the battery switch (Figure 1-4) and
turn it to Standby mode ( ). During initial freezer start-up, the system
battery may require charging and the Low attery message may appear in
the message center.
ote Ensure the battery switch is turned to Standby mode ( ). The
rechargeable batteries require 36 hours to charge at initial start-up. A “Low
attery” alarm may occur until the batteries are fully charged. Should a
power failure occur during the initial start-up period, the electronics will
have limited operation. s
1-10 TSC Series Thermo Scientific
Section 1
Installation and Start-up
Remote Alarm Contacts
and Analog Output (cont.)
Attach Power Cord
4-20 mA 0-1V 0-5V
Temperature -100 to +50°C -100 to +50°C -100 to +50°C
Table 1-2. Analog Output Specifications
Connect Unit to Electrical
Power
IIMMPPOORRTTAANNTTUUSSEERRIINNFFOORRMMAATTIIOONN
CAUTION! Stored product should be protected
by a redundant 24 hour/day monitoring system
with alarm capability. An interconnect jack and
thermocouple are installed for centralized
monitoring, should on-board system fail.
Figure 1-12. Power Cord Attachment

With the freezer properly installed and connected to power, system set
points can be entered. The following set points can be entered in Settings
mode: Control temperature, high temperature alarm set point, low
temperature alarm set point, and (optional) US set point. Default
settings are shown in the table below. See Chart 1-1 for more detail.
ote If the set point is changed and the low temperature and high
temperature alarms are set 10° from the set point, the alarm set points will
be adjusted automatically to maintain a distance of at least 10° from set
point. s
The freezer has an operating temperature range of -50°C to -86°C (-86C
units) or -10°C to -40°C (-40C units), depending on ambient
temperature. The freezer is shipped from the factory with a temperature
set point of -80°C (-86C units) or -40° (-40C units). To change the
operating temperature set point:
1. Press the Mode key until the Settings indicator lights.
2. Press the right arrow until “SET PT = -XX” is displayed in the message
center.
3. Press the up/down arrow key until the desired temperature set point is
displayed.
4. Press Enter to save the set point.
5. Press the Mode key until the Run indicator lights for Run mode or
press the right/left arrow keys to go to next/previous parameter.
If no control keys are pressed, the freezer will automatically return to RUN
mode after 5 minutes.
TSC Series 1-11Thermo Scientific
Section 1
Installation and Start-up
Freezer Start-Up
-86C Units
Control Set Point -80°C
High Temperature Alarm -70°C
Low temperature alarm -90°C
Optional BUS Set Point -60°C
-40C Units
Control Set Point -40°C
High Temperature Alarm -30°C
Low temperature alarm -50°C
Optional BUS Set Point -30°C
Set Operating
Temperature

The high temperature alarm activates an audible/visual warning when the
freezer chamber temp reaches or exceeds the high temp alarm set point.
To set the high temperature alarm set point:
1. Press the Mode key until the Set indicator lights.
2. Press right arrow until “HI ALM = -XX” displays in message center.
3. Press the up or down arrow key until the desired high temperature
alarm set point is displayed.
4. Press Enter to save the setting.
5. Press the Mode key until the Run indicator lights or press the right or
left arrow to go to the next or previous parameter.
If no control keys are pressed, the freezer will automatically return to RUN
mode after 5 minutes.
ote The high alarm set point must be set at least 5°C from the control
set point. s
ote At initial start-up, the high temperature alarm is disabled until the
cabinet reaches set point or 12 hours elapse. s
The low temperature alarm activates an audible/visual warning when the
freezer chamber temp reaches or decreases below low temp alarm set point.
To set the low temperature alarm set point:
1. Press the Mode key until the Settings indicator lights.
2. Press right arrow until “LO ALM = -XX” displays in message center.
3. Press the up or down arrow key until the desired low temperature
alarm set point is displayed.
4. Press Enter to save the setting.
5. Press the Mode key until the Run indicator lights or press the right or
left arrow to go to the next or previous parameter.
If no control keys are pressed, the freezer will automatically return to RUN
mode after 5 minutes.
ote The low alarm set point must be set at least 5°C from the control set
point. s
1-12 TSC Series Thermo Scientific
Section 1
Installation and Start-up
Set High Temperature
Alarm
Set Low Temperature
Alarm

An access code can be set to prevent unauthorized change of settings in
Calibrate, Configuration and Settings mode. (An access code of 000 is
required to make changes.) If the access code is not at the default 000, you
can not leave RUN mode without entering a code. See Section 3,
Configuration for instructions on modifying the access code.
Run mode is the default mode for the freezer. The run mode displays the
cabinet temperature on the temperature display and ‘SYSTEM OK’ on the
message center under normal operating conditions. In addition, the Run
mode allows display of the following information:
LINE VOLTAGE
COMPENSATED VOLTAGE
* HSHX TEMPERATURE (heat exchanger temperature); -86C units
only
This information is scrolled individually by pressing the right arrow key.
In each case, the message center returns to SYSTEM OK in 10 seconds if
no keys are pressed.
TSC Series 1-13Thermo Scientific
Section 1
Installation and Start-up
Access Code
Run Mode