Cardinal Health CARC0386A Operating instructions

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FY16_237CHB Ultra Low
Rev. 0 05/16
Cardinal Health™
Ultra-Low Freezer
Operating and Maintenance Manual
3 cu. ft. -86C ULT Chest Freezer
CARC0386A
FY16_237_CHB_UltraLowChest_IFU.indd 1 6/3/16 2:11 PM

Art specications:
User Manual – 8.5" W x 11"
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FY16_237CHB Ultra Low
Rev. 0 05/16
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 terminates in an
interconnect jack (Figure 1-4) behind the base front cover.
It is strongly recommended that this thermocouple be attached
to a redundant 24 hour 7 day monitoring system with alarm
capabilities. Connecting the sensor to a monitoring and alarm
system separate from the freezer provides the utmost in product
safety, should the integral system fail.
Packing List
-86C Models Covered
Manual Number 7CARC0386A Rev 1
Part No. Description Qty
213F 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
Model Cu. ft. Voltage
CARC0386A 3 120 /60
0 40796 5/10/16 Released for Production CCS
FY16_237_CHB_UltraLowChest_IFU.indd 3 6/3/16 2:11 PM
1 41370 5/30/17 Updated BUS info BPG

Art specications:
User Manual – 8.5" W x 11"
Do not alter art or size.
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FY16_237CHB Ultra Low
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Preface
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.
Caution: All internal adjustments and maintenance must be performed by qualied service
personnel.
Material in this manual is for information purposes only. The contents and the product it describes are subject to change without notice.
Cardinal Health makes no representations or warranties with respect to this manual. In no event shall Cardinal Health be held liable for any
damages, direct or incidental, arising out of or related to the use of this manual.
Intended Use: The chest freezers (see cover page for specic models) described in this manual are high performance units for professional
use. These products are intended for use as cold storage in research use and as a general purpose laboratory freezer, storing samples or
inventory at operating temperatures between -50°C and -80°C.
It is not considered a medical device and has therefore not been registered with a medical device regulatory body (e.g. FDA); that is, it has
not been evaluated for the storage of samples for diagnostic use or for samples to be re-introduced to the body.
This unit is not intended for use in classied hazardous locations, not to be used for the storage of ammable inventory.
CAUTION
Contains Parts and Assemblies
Susceptible to Damage by
Electrostatic Discharge (ESD)
üAlways use the proper protective equipment (clothing, gloves, goggles, etc.)
üAlways dissipate extreme cold or heat and wear protective clothing.
üAlways follow good hygiene practices.
üEach individual is responsible for his or her own safety.
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.
Hot surface(s) present which may cause burns to unprotected skin, or to materials which may be
damaged by elevated temperatures.
Marking of electrical and electronic equipment, which applies to electrical and electronic equipment
falling under the Directive 2002/96/EC (WEEE) and the equipment that has been put on the market
after 13 August 2005.
This product is required to comply with the European Union’s Waste Electrical & Electronic
Equipment (WEEE) Directive 2002/96/EC. It is marked with the WEEE symbol. Thermo Fisher
Scientific has contracted with one or more recycling/disposal companies in each EU Member State
European Country, and this product should be disposed of or recycled through them. Further
information on Thermo’s compliance with this directive, the recyclers in your country and
information on Thermo Scientific products will be available at www.thermoscientific.com.
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.
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.
Hot surface(s) present which may cause burns to unprotected skin, or to materials which may be
damaged by elevated temperatures.
Marking of electrical and electronic equipment, which applies to electrical and electronic equipment
falling under the Directive 2002/96/EC (WEEE) and the equipment that has been put on the market
after 13 August 2005.
This product is required to comply with the European Union’s Waste Electrical & Electronic
Equipment (WEEE) Directive 2002/96/EC. It is marked with the WEEE symbol. Thermo Fisher
Scientific has contracted with one or more recycling/disposal companies in each EU Member State
European Country, and this product should be disposed of or recycled through them. Further
information on Thermo’s compliance with this directive, the recyclers in your country and
information on Thermo Scientific products will be available at www.thermoscientific.com.
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.
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.
Hot surface(s) present which may cause burns to unprotected skin, or to materials which may be
damaged by elevated temperatures.
Marking of electrical and electronic equipment, which applies to electrical and electronic equipment
falling under the Directive 2002/96/EC (WEEE) and the equipment that has been put on the market
after 13 August 2005.
This product is required to comply with the European Union’s Waste Electrical & Electronic
Equipment (WEEE) Directive 2002/96/EC. It is marked with the WEEE symbol. Thermo Fisher
Scientific has contracted with one or more recycling/disposal companies in each EU Member State
European Country, and this product should be disposed of or recycled through them. Further
information on Thermo’s compliance with this directive, the recyclers in your country and
information on Thermo Scientific products will be available at www.thermoscientific.com.
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.
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.
Hot surface(s) present which may cause burns to unprotected skin, or to materials which may be
damaged by elevated temperatures.
Marking of electrical and electronic equipment, which applies to electrical and electronic equipment
falling under the Directive 2002/96/EC (WEEE) and the equipment that has been put on the market
after 13 August 2005.
This product is required to comply with the European Union’s Waste Electrical & Electronic
Equipment (WEEE) Directive 2002/96/EC. It is marked with the WEEE symbol. Thermo Fisher
Scientific has contracted with one or more recycling/disposal companies in each EU Member State
European Country, and this product should be disposed of or recycled through them. Further
information on Thermo’s compliance with this directive, the recyclers in your country and
information on Thermo Scientific products will be available at www.thermoscientific.com.
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.
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.
Hot surface(s) present which may cause burns to unprotected skin, or to materials which may be
damaged by elevated temperatures.
Marking of electrical and electronic equipment, which applies to electrical and electronic equipment
falling under the Directive 2002/96/EC (WEEE) and the equipment that has been put on the market
after 13 August 2005.
This product is required to comply with the European Union’s Waste Electrical & Electronic
Equipment (WEEE) Directive 2002/96/EC. It is marked with the WEEE symbol. Thermo Fisher
Scientific has contracted with one or more recycling/disposal companies in each EU Member State
European Country, and this product should be disposed of or recycled through them. Further
information on Thermo’s compliance with this directive, the recyclers in your country and
information on Thermo Scientific products will be available at www.thermoscientific.com.
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.
Important operating and/or maintenance instructions. Read the accompanying text carefully.
Potential electrical hazards. Only qualied persons should perform procedures associated with this symbol.
Equipment being maintained or serviced must be turned o and locked o to prevent possible injury.
Hot surface(s) present which may cause burns to unprotected skin, or to materials which may be
damaged by elevated temperatures.
Marking of electrical and electronic equipment, which applies to electrical and electronic equipment falling under the
Directive 2002/96/EC (WEEE) and the equipment that has been put on the market after 13 August 2005.
This product is required to comply with the European Union’s Waste Electrical & Electronic Equipment (WEEE) Directive
2002/96/EC. It is marked with the WEEE symbol. Cardinal Health has contracted with one or more recycling/disposal
companies in each EU Member State European Country, and this product should be disposed of or recycled through
them. Further information on Thermo’s compliance with this directive, the recyclers in your country and information on
Thermo Scientic products will be available at www.thermoscientic.com.
FY16_237_CHB_UltraLowChest_IFU.indd 4 6/3/16 2:11 PM

Art specications:
User Manual – 8.5" W x 11"
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FY16_237CHB Ultra Low
Rev. 0 05/16
SECTION 1
Installation and Start-up ................................................................................. 1-1
Control Panel Keys, Display, Indicators...................................................... 1-2
Displays................................................................................................................... 1-3
Install Freezer ....................................................................................................... 1-3
Choose Location ................................................................................................ 1-3
Install Wall Bumpers.......................................................................................... 1-3
RS-232 Communications................................................................................. 1-3
Remote Alarm Contacts and Analog Output.......................................... 1-4
Attach Power Cord............................................................................................. 1-4
Connect Unit to Electrical Power ................................................................. 1-4
Freezer Start-Up.................................................................................................. 1-4
Set Operating Temperature............................................................................ 1-5
Set High Temperature Alarm......................................................................... 1-5
Set Low Temperature Alarm........................................................................... 1-5
Access Code.......................................................................................................... 1-5
Run Mode .............................................................................................................. 1-5
SECTION 2
Calibrate Mode.................................................................................................... 2-1
Calibrate Control Probe ................................................................................... 2-1
Temperature Stabilization Periods.............................................................. 2-1
SECTION 3
Conguration....................................................................................................... 3-1
High Alarm Test ................................................................................................... 3-1
Low Alarm Test .................................................................................................... 3-1
System Battery Test............................................................................................ 3-1
BUS Battery Test .................................................................................................. 3-1
Display Temperature......................................................................................... 3-1
Clear High Stage Alarm.................................................................................... 3-2
Set Access Code .................................................................................................. 3-2
RS485 Address..................................................................................................... 3-2
Back Up System Type........................................................................................ 3-2
Cold Excursion..................................................................................................... 3-2
Warm Excursion .................................................................................................. 3-2
Reset Excursion ................................................................................................... 3-2
SECTION 4
Alarms..................................................................................................................... 4-1
High Stage System Failure Alarm................................................................. 4-1
Multiple Alarms................................................................................................... 4-1
Micro Board Failure Alarm .............................................................................. 4-1
Lost Communication ........................................................................................ 4-1
SECTION 5
Maintenance......................................................................................................... 5-1
Clean Air Filter...................................................................................................... 5-1
Clean Condenser ................................................................................................ 5-1
Defrost Chamber................................................................................................ 5-1
Clean Lid Gasket ................................................................................................. 5-2
Prepare Unit for Storage.................................................................................. 5-2
Replace Battery(s)............................................................................................... 5-2
Check Battery(s) .................................................................................................. 5-2
Preventive Maintenance.................................................................................. 5-3
SECTION 6
Factory Installed Options ................................................................................ 6-1
Back Up System (BUS)....................................................................................... 6-1
Install Injection Assembly............................................................................... 6-1
Install Temperature Probe............................................................................... 6-1
Connect Probe/Solenoid Harness ............................................................... 6-2
BUS Control Panel .............................................................................................. 6-2
Congure Optional Back Up System (BUS).............................................. 6-3
Set Optional BUS Set Point............................................................................. 6-3
Test BUS Operation............................................................................................ 6-4
Disconnect Fitting Assembly, Transfer Hose ........................................... 6-4
Chart Recorder..................................................................................................... 6-4
Install Chart Paper.............................................................................................. 6-4
Change Program................................................................................................. 6-4
Calibrate Chart Recorder................................................................................. 6-4
SECTION 7
Specications....................................................................................................... 7-1
SECTION 8
Spare Parts............................................................................................................. 8-1
SECTION 9
Refrigeration Schematics................................................................................ 9-1
SECTION 10
Electrical Schematics.......................................................................................10-1
SECTION 11
Warranty Information.....................................................................................11-1
APPENDIX
Handling Liquid Nitrogen...............................................................................A-1
Handling Liquid CO2.........................................................................................A-2
First Aid...................................................................................................................A-2
TABLE OF CONTENTS
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Art specications:
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FY16_237CHB Ultra Low
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FY16_237_CHB_UltraLowChest_IFU.indd 2 6/3/16 2:11 PM

Installation and Start-Up 1-1
Art specications:
User Manual – 8.5" W x 11"
Do not alter art or size.
All art prints PMS 185 Red and
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FY16_237CHB Ultra Low
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SECTION 1
INSTALLATION AND START-UP
Figure 1-1 shows the front view of the freezer and indicate the
following freezer components:
• Control Panel - keypad, displays and indicators.
• BUS (Optional Back Up System) panel.
• Optional temperature recorder (7 day, one pen) or datalogger.
• Keylock - keyed lid lock.
Figure 1-2 displays 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 BUS connections for probe and solenoid.
• RS-232 or RS-485 interface.
• Power Switch (mains disconnect).
The probe cover houses the control, optional recorder, datalogger,
Model 1535 alarm, or BUS probes.
Figures 1-3 and 1-4 indicate the following components:
• Freezer lter location
• Battery power switch (freezer and BUS)
• Thermocouple receptacle
• Battery mounting bracket
• Freezer and optional BUS battery
Optional Back Up
System Controls
Control Panel
Optional
Datalogger
or Recorder
Key lock
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 1-1. Front View 3 cu. ft. Models
FIGURE 1-2 Rear View 3 cu. ft. Models
FIGURE 1-3. Probe Cover
FIGURE 1-4. 3 cu. ft. Models
O
O
System
battery
Battery
switch
Thermocouple
interconnect jack
To
remove filter
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s

1-2 Installation and Start-Up
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CONTROL PANEL KEYS, DISPLAY, INDICATORS
Mode Select Switch - Used to select Run, Settings, Calibrate and
System Conguration Modes.
Mode Select Indicators -
Run: Run Menu
Settings: Set Points Menu
Calibrate: Calibrate Menu
Conguration: Conguration Menu
Temperature Display - Displays temperature in degrees Celsius.
Alarm Indicator - Light pulses on/o during an alarm condition.
Silence - Mutes the audible alarm.
Low Battery - 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.
FIGURE 1-5. Control Panel Keys, Display and Indicators
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
Cardinal Health™ Ultra-Low freezers have four basic modes which
allow freezer setup: Run, Settings, Calibrate and Conguration.
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.
Calibrate is used to calibrate various system parameters.
Conguration allows for custom setup of various options.
The chart below shows the selections under each of the modes.
Table 1-1. Modes of Operation
Scroll for Parameters Arrows: Steps the operator through the
parameters of Settings, Calibrate and Conguration 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 Conguration 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 Conguration 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.
Run Setting Calibrate Conguration
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
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Installation and Start-Up 1-3
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DISPLAYS
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.
INSTALL FREEZER
To remove the freezer from the pallet, use a 7/16”wrench to remove
all the bolts securing the shipping bracket to the pallet.
Note: If tipped more than 45°, allow the unit to set upright for 24
hours before start up.
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.
Before 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 o 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.
Note: Do not move the freezer with the product load inside.
CHOOSE LOCATION
Locate the freezer on a rm, 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.
Note: For proper ventilation and airow, 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”.
INSTALL WALL BUMPERS
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.
Quantity Stock# Description Purpose
2 510016 1/4-20 x 5-1/2" Bolt Wall Bumper
2 380520 Neoprene Cap Cap Protector
RS-232 COMMUNICATIONS
Cardinal Health™ Ultra-Low freezers have a data communications
interface. The factory default setting is RS-232.
FIGURE 1-6. RS-232 Interface
The wiring identication for the interface is shown in Figure 1-6.
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 DB9 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:
Baud........................................................................................1200
Data bits ..........................8 (7 bit ASCII with leading zero)
Start bits ....................................................................................... 1
Stop bits........................................................................................ 2
Parity......................................................................................none
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)
Note: The RS-232 is not compatible with Model 1535 Monitor/
Alarm System.
* -86C units only
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1-4 Installation and Start-Up
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REMOTE ALARM CONTACTS AND
ANALOG OUTPUT
Cardinal Health™ Ultra-Low freezers have remote alarm contacts
and analog output.
See Figure 1-2 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, control probe and microboard
failures. Figure 1-7shows the remote contacts in alarm state.
FIGURE 1-7. Remote Alarm Contacts
IMPORTANT USER INFORMATION
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.
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 specications.
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 Specifi ations
Remote Contacts/Analog Output
PIN# 1 Analog Output +
PIN# 2 Analog Output –
PIN# 3 Not Connected
PIN# 4 Not Connected
PIN# 5 Normally Closed
PIN# 6 Common.
PIN# 7 Normally Open
Contact Rating: 1A @ 30V
Contacts in Alarm State
ATTACH POWER CORD
Insert the power cord into the power inlet module.
Place the retaining bracket (P/N 195763) over the connector.
Tighten retaining screws to secure.
FIGURE 1-8. Power Cord Attachment
CONNECT UNIT TO ELECTRICAL POWER
Note: See the serial tag on the side of the unit for electrical
specications or refer to the electrical schematics in this manual.
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 o,
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
Battery message may appear in the message center.
Note: Ensure the battery switch is turned to Standby mode ( ).
The rechargeable batteries require 36 hours to charge at initial
start-up. A“Low Battery”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.
FREEZER START-UP
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) BUS set
point. Default settings are shown in the table below. See Chart 1-1
for more detail.
Note: 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.
-86 Units
Control Set Point -80˚C
High Temperature Alarm -70˚C
Low Temperature Alarm -90˚C
Optional BUS Set Point -60˚C
FY16_237_CHB_UltraLowChest_IFU.indd 4 6/3/16 2:11 PM

Installation and Start-Up 1-5
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SET OPERATING TEMPERATURE
The freezer has an operating temperature range of -50°C to -86°C,
depending on ambient temperature. The freezer is shipped from
the factory with a temperature set point of -80°C.
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.
SET HIGH TEMPERATURE ALARM
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.
Note: The high alarm set point must be set at least 5°C from the
control set point.
Note: At initial start-up, the high temperature alarm is disabled
until the cabinet reaches set point or 12 hours elapse.
SET LOW TEMPERATURE ALARM
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.
Note: The low alarm set point must be set at least 5°C from the
control set point.
ACCESS CODE
An access code can be set to prevent unauthorized change of
settings in Calibrate, Conguration 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, Conguration for instructions on modifying
the access code.
RUN MODE
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).
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.
FY16_237_CHB_UltraLowChest_IFU.indd 5 6/3/16 2:11 PM