Stirling SU780UE User manual

Operating Manual
7.18.16
SU780UE -86˚C
Ultra-Low Storage Freezer
6000 Poston Rd Athens, Ohio 45701, USA t: 740. 274.7900 / 855.274.7900 f: 740. 274.7901 www.stirlingultracold.com

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SU780UE Quick Guide
Initial Setup
1. Unpack freezer unit and included components, ensure all packaging material
has been removed from around the fan inlet and outlet holes.
2. Adjust the leveling feet to secure the freezer in place.
3. Plug AC power cord into the main power socket at the back of the unit
and then into an electrical outlet.
4. Turn the AC power switch to the“On”position.
5. Notice: Ensure the access port stopper or sealant is in place. Remove factory tape at the port
stopper prior to initial use.
6. Turn on battery power. Battery switch is located in main power housing
on the rear of the freezer.
7. Ensure set point is within desired range (default is -86˚C) or change set point
to user-preferred temperature according to the control functions outlined below.
Guide to Basic GUI Functions
ON / OFF Switch the main power on, located at the back of the unit above the AC cord.
Battery Power Switch on the battery power located on the left of the Recessed Electrical
Panel. This is essential if monitoring is required in the event of a power failure.
Change Set Point Tap Home > Setup > Setup > Enter PIN > Enter > Change > Set Point > +/- > Save
Silence Alarm Tap Home > Setup > Silence
Event Log Tap Home > Setup > Event Log > Prev. Page, Next Page
Chart History Tap Home > Setup > Chart History
Guide to Advanced GUI Functions
Alarm Setup Tap Home > Setup > Setup > Enter PIN > Enter > Alarms > xxx Delay > +/- > Save
Date and Time Tap Home > Setup > Setup > PIN > Date & Time > +/- > Save
Change PIN Tap Home > Setup > Setup > Enter PIN > Enter > PIN > Enter New PIN > Enter >
Re-enter New PIN > Enter
Calibrate RTDs Requires Authorized Service & PIN
Tap Home > Setup > About > Service > RTD Calibr. > RTD Select > +/- > Calib.
Handle Operation
The Stirling Ultracold handle is designed for one handed operation. To open the
freezer, rotate handle towards the user approximately 90º. To engage the Power-
Release, apply firm downward pressure on the handle while in its open position.
The Power-Release assists when the freezer door is adhered to the gasket after long
periods of non-use as well as when air pressure is not yet equalized. To close, with
handle in the horizontal position, push door to cabinet and return the handle to its
original vertical position
Caution:
Tipping Hazard
The unloaded freezer is TOP HEAVY. Take care in moving and installation. Do not pitch
the freezer more than 12 degrees from horizontal. Doing so may cause it to tip over.

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The model SU780UE incorporates next generation free-piston Stirling engine technology.
Free-piston Stirling engine technology differs from conventional compressor-based
refrigeration by providing high efficiency, deep-temperature cooling in a compact package.
SU780UE
-86˚CUltra-Low Temperature Storage
Table of Contents:
1. INTRODUCTION . . . . . . . . . . . . . . . . . .6-7
1.1 Description. . . . . . . . . . . . . . . . . . . . . . . . . 6
1.2 Intended Uses. . . . . . . . . . . . . . . . . . . . . . 6
1.3 Documentation . . . . . . . . . . . . . . . . . . . . 6
1.3.1 Operating Manual . . . . . . . . . . . . . . . . 6
1.4 Organization of this
Operating Manual . . . . . . . . . . . . . . . . . . . . . 7
2. FEATURES OF THE
SU780UE FREEZER. . . . . . . . . . . 8-11
2.1 Humm™Free-Piston Stirling Engine . 8
2.2 Cabinet Design Features. . . . . . . . . . . . 8
2.3 Temperature Monitoring Features . . 8
2.4 The Swift GUI Touch Screen. . . . . . . . . 9
2.5 Pictorial Tour . . . . . . . . . . . . . . . . . . . . . . 10
2.6 Included Items . . . . . . . . . . . . . . . . . . . . 11
3. SAFETY PRECAUTIONS . . . . . . 12-13
4. UNPACKING AND
INSTALLATION . . . . . . . . . . . . . 14-16
4.1 Freezer Site Qualification . . . . . . . . . . 14
4.2 Unpacking and
Unloading Procedure . . . . . . . . . . . . . . . . . 15
4.3 Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
5. OPERATION. . . . . . . . . . . . . . . . 17-30
5.1 Operation of the SU780UE
Freezer . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17-29
5.1.1 Swift touch Screen Control Panel. . 17
5.1.2 Control Panel Quick Guide . . . . . 18-19
5.1.3 Swift Graphical User
Interface (GUI) Instructions . . . . . . . . 20-29
5.2 Managing Freezer Contents . . . . . . . 30
5.3 Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . 30
5.4 Calibration of the RTDs . . . . . . . . . . . . 30
6. TRANSPORTING, MOVING
AND STORAGE . . . . . . . . . . . . . . . . 31
7. PREVENTATIVE
MAINTENANCE . . . . . . . . . . . . . 31-32
7.1 Monthly Maintenance . . . . . . . . . . . . . 31
7.1.1 De-ice Gaskets and Heat Break. . . . 31
7.1.2 Inspect Vacuum Relief Port. . . . . . . . 31
7.2 Yearly Maintenance. . . . . . . . . . . . . . . . 32
7.2.1 Check and Clean Heat Reject Fins . 32
7.2.2 Lubricate Door Latch Mechanism . 32
7.2.3 Check Door Alignment . . . . . . . . . . . 32
7.3 Biyearly Maintenance. . . . . . . . . . . . . . 32
7.3.1 Replace Battery . . . . . . . . . . . . . . . . . . 32
8. TROUBLESHOOTING . . . . . . . . . . . 33
9. SPECIFICATIONS. . . . . . . . . . . . 34-37
9.1 Freezer Specifications. . . . . . . . . . . . . . 34
9.2 Performance Data . . . . . . . . . . . . . . . . . 36
9.3 Materials Specifications. . . . . . . . . . . . 37
10. WARRANTY. . . . . . . . . . . . . . . 38-39

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1. Introduction
1.1 – Description
The Stirling Ultracold SU780UE Ultra-Low Temperature (-86°C) Freezer uses a unique
free-piston Stirling engine to provide high efficiency, deep-temperature cooling.
1.2 – Intended Uses
The SU780UE freezer provides ultra-low temperature storage for general (non-
flammable) research laboratory materials requiring a stable, computer-controlled,
deeply-frozen environment. The storage of materials intended for medical applica-
tions is prohibited.
1.3 – Documentation
1.3.1 – Operating Manual
• This operating manual describes all aspects of receiving, installing, use, moving and
storage of the Stirling Ultracold SU780UE Freezer. More detail on specific aspects of
operation of the freezer is available online.
• The freezer is controlled with the touch screen interface Swift™ Graphical User Inter-
face. This operating manual describes use of the Swift GUI, and the appended Swift
GUI Supplement expands that description with pictures of each screen and option.
1.4 – Organization of this Operating Manual
This manual is organized as follows:
• Unpacking and installation
• Setup
• Operation
• Transporting and moving
Please note that precautions and safety
instructions are part of each section of
the manual, and must be observed to avoid
damage to the freezer or harm to its users.
Model SU780UE

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User Advisory:
Deep temperatures are dangerous, use proper precautions when operating
ultra-low temperature freezers. This ultra-low temperature freezer is intended for stor-
age of frozen sample product or vials at deep temperatures. Stirling Ultracold, Divi-
sion of Global Cooling, Inc. cannot be held responsible for damages or loss of stored
product attributed to unintended use. In no case will Stirling Ultracold, Division of
Global Cooling, Inc. be held liable for loss of stored product resulting from electrical,
mechanical or structural failure. As with any ultra-low temperature freezer, appropri-
ate back-up and redundancy considerations are the responsibility of the user.
Flammable Refrigerant Use:
SU780UE uses 90 grams of R-170 (Ethane) in a hermetically sealed thermosiphon
tubing. It requires caution in use/repair.
A. Danger – Risk of Fire or Explosion. Flammable Refrigerant Used. Do Not Drill
or Puncture Inner Liner.
B. Danger – Risk of Fire or Explosion. Flammable Refrigerant Used. To be Repaired
Only by Trained Service Personnel. Component Parts Shall Be Replaced With Like
Components. Do Not Puncture Refrigerant Tubing.
C. Caution – Risk of Fire or Explosion. Flammable Refrigerant Used. Consult
Repair Manual/Owner’s Guide Before Attempting to Service this Product.
All Safety Precautions Must be Followed.
D. Caution – Risk of Fire or Explosion. Dispose of Properly in Accordance
with Federal or Local Regulations. Flammable Refrigerant Used.
E. Caution – Risk of Fire or Explosion Due to Puncture of Refrigerant Tubing;
Follow Handling Instructions Carefully. Flammable Refrigerant Used.
1. Introduction

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2. Features of the SU780UE freezer
2.1 – Humm™Free-Piston Stirling Engine
The SU780UE Ultra-Low Temperature Freezer uses the
Stirling Ultracold Model M600 free-piston Stirling engine
to provide high efficiency, deep-temperature cooling.
No HCFC or CFC refrigerants are used in the M600 and
SU780UE. The M600 Stirling engine uses approximately 10 grams of helium gas as a
working fluid. About 90 grams of R-170 are used in the thermosiphon which removes
energy from the freezer.
2.2 – Cabinet Design Features
The cabinet utilizes vacuum-insulated panels with polyurethane foam support
providing an internal volume of cabinet approximately 780 liters. The environmen-
tally friendly blowing agent is Ecomate ®. A locking cam door latch ensures door
gasket compression when closed. Door sealing consists of three gaskets and is
factory replaceable. A door defrost minimizes water or ice deposition on the gasket
interface.
2.3 – Temperature Monitoring Features
Two resistance temperature detectors (RTDs) measure the internal cabinet tempera-
ture of the SU780UE. One provides input to the controller and the other provides
input for the Swift GUI display and for reporting and logging. Both RTDs may be
calibrated by the user through the Swift GUI. The Swift GUI provides a door open
timeout alarm and monitors the temperature reporting RTD for instances beyond
high and low limits that are set automatically or manually. Alarms are reported
through an audible alarm in the freezer enclosure and through a contact closure that
may be connected to an external alarm. The Swift GUI provides options to temporar-
ily suppress alarms and set a delay time before the alarm is reported via the contact
closure. A one-time temperature alarm suppression provided by the Swift software
allows for the initial cooling of the freezer after start-up.

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2.4 – The Swift GUI Touch Screen
The Swift GUI is implemented on a touch screen control
panel on the front of the cabinet. Its capabilities are described
in detail later. General features of the control panel are:
• Set freezer control, alarm and communications parameters
• Provide password protected access to parameter changes
• Display freezer status
• Display temperature graph and event log
• Display diagnostic and service information
• Display freezer identification information
Values for the following SU780UE parameters are viewed and modified through
the touch screen.
Modiable Values Accessible Values
Temperature set point Current freezer interior temperature
Under temperature limit Temperature history chart
Over temperature limit Alarm status
Over temperature delay after door opening Swift GUI firmware event log
Audible alarm silence interval “About” screen (general information)
External contact delay upon alarm Service contact information
Door open alarm delay
Door defrost schedule
Password Identication Number (PIN) status
Current date
Current time
RTD calibration adjustments
2. Features

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2.5 – Pictorial Tour
1. Control housing
2. Temperature recorder (optional)
— Factory or field installed
3. Mechanical compartment containing M600 Stirling engine
4. Stirling Swift™graphical controller
5. Magnetic latching inner doors
6. Thermosiphon cooled inner wall
— Delivers uniform inner wall cooling
7. Recessed electrical panel
A. AC Power Connector - Universal power input
120 or 240 VAC, 50/60 Hz, single phase
B. AC Power Switch
C. External Alarm Terminal (NC : NO : C)
NC - normally closed, opened at alarm
NO - normally opened, closed at alarm
C - common
D. Battery Switch
E. Data Port (not valid)
8. CO2/LN2Backup connector
9. Air vent
10. Outer door hinges
11. Access port
— 0.5" (12.7 mm) with plug
12. Non-conductive cabinet extrusion heat break
— Adjustable heat control
13. Dual-wheel casters and leveling legs
14. Stainless steel shelves (shown with 5 shelves)
— Adjustable on 0.5" (12.7 mm) centers
15. Temperature sensor (RTD)
16. Lockable door latch
17. Flexible door gasket
18. Electrical grounding stud
— Inside mechanical compartment, not shown
2.6 – Included Items
• Packing List
• Operating Manual - (this document,
including Warranty Card). 1 pc
• 1 Wrench
• Port Sealant
• 1 Port Plug
• 2 Keys

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18
2. Features
CAUTION:
Tipping Hazard
The unloaded freezer is TOP HEAVY. Take care in moving and installation. Do not pitch
the freezer more than 12 degrees from horizontal. Doing so may cause it to tip over.
8
9
7
A
B
C
DE
10
Ground
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5
15
6
16
17
11
14
12
13
4
1
3

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3. Safety Precautions
Potential hazards associated with use of the SU780UE freezer may impact the safety
of persons in the workplace in which the freezer is installed. This includes persons
who operate the freezer, and other personnel in its vicinity. The freezer itself may also
be damaged and / or its warranty voided by improper operation or usage. It is very
important that all personnel that install, operate, transport or place the freezer into
storage read this entire manual to understand those hazards. Likewise, it is imperative
to place this manual for ready reference adjacent to the freezer at all times.
Specific precautions are included in each section of this operating manual. However,
several important general precautions must be observed and are described below.
• Do not disassemble, modify or repair.* There are no user serviceable parts inside the
freezer unit. Contact Stirling Ultracold for authorized repair procedures as required.
• Do not immerse in water, pour water on the unit, or operate where water may drip
or fall on the unit. Operation under extreme environmental conditions, e.g., in very
high humidity environments (RH 85% or more) also may lead to condensation or
water intrusion.*
• Warning: Unauthorized modification to the cabinet, controls or free-piston Stirling
engine will void all warranty provisions.
• Do not cut, change or modify the power cable.*
• Do not store flammable items such as gasoline, thinner or solvents in the freezer.
• The freezer is NOT rated as an explosion-proof freezer.
• Do not use hard and/or sharp objects, such as knives, screwdrivers, etc. to remove
any frost or ice that has accumulated on the inside of the freezer. The inside panels
are heat exchangers and can be damaged. Defrosting the cabinet is described later
in this operating manual.
• Do not use solvents to clean the panel or the outside or inside of the freezer.
*Doing so will void the warranty.

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• When removing the power cable, hold onto the plug and not the cable.
• Do not block the air vents from the mechanical compartment.
— 4" clearance on right side of unit is recommended.
• Frostbite can occur instantly at -86°C. Safe operating procedures are essential
— Never handle samples or freezer accessories with bare hands. Be especially
careful not to spill ultra-low temperature materials onto skin or clothing.
— Do not use gloves that become brittle at ultra-low temperatures.
— Nitrile and latex gloves are inadequate.
• Permeable gloves are dangerous because frozen materials can contact skin
and cause damage.
— Be especially careful that materials at low temperatures are not spilled onto
skin or clothing.
• Ultra-low temperatures may adversely impact freezer contents:
— Do not put ice or liquid water directly in the freezer box; always use
suitable containers.
— Use only sample containers that have been approved or tested for ultra-low
temperature use.
— Do not use glass containers when the contents might freeze and expand.
— Some plastics shatter at ultra-low temperatures. Avoid splinter hazards.
— Biological and chemical hazards are still hazardous at ultra-low temperatures.
Always wear proper protective equipment and follow appropriate isolation
protocols.
— Many types of labels will fall off and/or break at ultra-low temperatures. Some
types of ink which stick to glass and/or plastic at room temperature lose adhesion
at ultra-low temperature.
• In addition to the ULT hazards above, there are also physical hazards to consider:
— Be cautious when closing the door to avoid a pinching hazard.
— Be careful when loading the cabinet with heavy items.
3. Safety Precautions

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4. Unpacking and Installation
NOTE: Prior to installing the SU780UE, inspect the unpacked unit and any included
items for shipping damage. Compare all contents to the packing list for completeness.
4.1 – Freezer Site Qualication
1. Note the shipping packaging dimensions of 86" H x 43" D x 44" W |
(2184 x 1092 x 1016 mm) and shipping weight of 721 lbs. | (321 kg).
2. When moving the shipment from the point of receipt to the place where
it will be unpacked. The installation site must accommodate the freezer exte-
rior dimensions of 79" H x 34.2" D x 36" W | (2007 x 869 x 914 mm) and weight
of 625lbs. | (283 kg).
3. There are no specific required clearances for the top and back of the freezer;
however allowances must be made for electrical connections to the panel
on the back of the freezer. The left side requires appropriate space for handle
access. The right side requires appropriate space for door opening.
4. Ingress to the access port (see Page 10) is required during normal operation.
5. The freezer should be installed on a level surface. The leveling feet can
accommodate small variations.
6. There must be sufficient room to fully open the freezer’s door to access
its contents.
7. The facility/room lighting must not obscure the readability of the touch
screen display and must provide good visibility for working with the contents
of the freezer.
8. Do not block the air vents from the mechanical compartment.
4" clearance on right side of unit is recommended.
9. Care must be taken while unpacking and installing the freezer. Be mindful
of its size and weight. Dropping the freezer is likely to damage it.
10. TIPPING HAZARD: Do not pitch the freezer more than 12 degrees from hori-
zontal. Doing so may cause it to tip over. CAUTION: TOP HEAVY.

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4. Unpacking and Installation
4.2 – Unpacking and Unloading Procedure
1. Remove metal straps (1).
2. Remove the top-cover (2) (comprised of wooden frame & cardboard box lid).
3. Remove taping (3) from the middle of cardboard shipping unit. Note: the
shipping unit is configured as two square cardboard sections covering the
top portion and lower portion of the freezer separately.
4. Remove the top section of the shipping unit (4). Cut the cardboard using
a utility knife along the cutting line (5), located at the back of the unit.
CAUTION: Do not cut too deeply through the cardboard, as doing so may
damage the freezer.
5. Remove cardboard corner supports.
6. Remove the bottom portion of cardboard shipping unit (6).
7. Remove plastic cover from the freezer.
8. Collapse all side walls of the bottom portion of the cardboard shipping unit
(7) to move the freezer.
9. Remove two ramps (8) from the bottom portion of the shipping unit and
place them at the back of the pallet, hooking the ramp - slot to the metal
plate located at the back of the shipping unit.
10. Make sure the two ramps are spaced appropriately based on the wheel cast-
ers of the freezer and are parallel each other.
11. Unscrew the seismic anchors (9) from the front feet.
12. Move the freezer slowly onto the ramp, with one person guiding each side for
balance. Have a third person assist in slowly guiding the freezer down the ramp
to the floor to avoid damage to equipment, facilities, or injury to personnel.
1
2
3
4
5 6
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4.3 – Setup
1. Before switching on electrical power to the freezer, make all desired
external connections:
A. AC power connection
B. External alarm
2. Turn on the AC switch.
3. Notice: Ensure the access port stopper or sealant is in place. Remove factory
tape at the port stopper prior to initial use.
4. After the freezer reaches its operating temperature and its door is opened
and closed, the partial vacuum created when warm air is admitted, then
cooled, will prevent reopening of the door until the pressure is equalized.
A vacuum relief port is provided to accelerate this process.
5. Be mindful of any electrical shock hazards associated with making electrical
connections to the freezer, especially the external alarm connection.
6. Notice: To activate the battery for operation of all monitoring functions,
please place the battery switch to the “on” position. Battery switch is located
in main power housing on the rear of the freezer.

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5. Operation
5.1 – Operation of the SU780UE:
1. Monitoring temperature performance using the Swift GUI and touch screen
control panel.
2. Managing the freezer contents.
3. Cleaning and defrosting the freezer.
4. Calibrating the freezer's display RTD.
Specification of responsibilities for each of the above components of freezer opera-
tion should be part of the procedures and policy documents and guidelines for the
clinical, laboratory, or other activity for which the freezer is used. Safety requirements
are integral to these responsibilities.
5.1.1 – Swift™GUI and touch screen control panel:
A Password Identification Number (PIN) may be set, but is not displayed. The default
PIN is 1234 and may be changed by the user to any four-digit numeric. Use the PIN
to control access to Swift controller.
The Swift GUI is preprogrammed with default values for most parameters listed
above, so entering the date, time and temperature set point are the most essential
actions. Unless temperature limits are set manually, the software calculates default
values appropriate for the temperature set point.
The Swift GUI uses a menu system to display and modify system values. Generally,
each screen displays certain values and contains buttons that are pressed to access
other screens (according to the menu structure), and each screen has a button to
return to the Default screen and a“Back” button to return to the next higher level of
the menu.
4-5. Installation, Operation

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5.1.2 – Control Panel Quick Guide
The Swift GUI menu tree below starts with the default screen (Outlined in the “Basic
GUI Functions”table on Page 19). Buttons provide navigation to the screens on the
next level of the menu tree.
Home – display current freezer temperature.
• Setup – display Password Identification Number (PIN) status, door defrost status,
temperature set point, system date and time and alarm status.
• Setup – display temperature set point. PIN required if enabled.
Change Set Point – display and change the temperature set point and high
and low temperature limits.
Alarm Setup – display and change the Temp. Delay (to delay an over tempera-
ture alarm after a door opening), Audible Delay (time interval to silence the
audible alarm upon request), Ext. Delay (to delay remote alarm contact closure
after alarm condition is detected) and Door Delay (period that the door may
remain open without alarm).
Date & Time Setup – display and change system date and time.
Door Defrost – adjust defrost heater between 0 to 100 %.
PIN Setup – disable/enable the system PIN and change the PIN.
• Silence Alarm – temporarily silence audible alarm.
• Event Log – tracks the last approximately 200 alarm conditions such as door open-
ings, temperature set point changes, over temperature condition, and power outages.
• Chart History – displays the cabinet interior air temperature over the last 12 hours,
24 hours or 7 days. Increase the chart resolution by tapping the screen.
• About – display freezer model number, serial number, firmware version, engine
number, run hours, temperature set point, and install date.
–Service – display cabinet, control and cold-head RTD temperatures, warm-head
thermistor temperature and engine voltage, current and power.
Service screen information is used for service by authorized personnel only.
Service PIN required.
RTD Calibration – display RTD readings and calibration offsets to apply to
reading (used to compensate for discrepancies between Display RTD and
user-supplied temperature standards).
–Alarm Test – tests alarm.
–Service Contact – provides phone, email, and web address for manufacturer.

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Basic Controls
• Generally, to change a value on a screen, Tap the appropriate button to highlight
the parameter.
• Use the +/- buttons to enter the desired value and then use the “Save”button
to complete the change.
• PINs are entered through a numeric keypad screen with an“Enter” button to
complete the entry and an “Exit” button to terminate it.
• PINs may be disabled on the PIN Setup screen by leaving the new PIN value blank.
When the PIN is disabled, any person can perform all actions available via the
Swift GUI, including silencing alarms and calibrating the RTDs.
• The following examples of Swift GUI usage describe sequential button taps, e.g.,
1 > 2 means: tap button labeled“1”then tap button labeled“2”. Swift GUI display
screens are named and those names are shown in bold. Access to certain screens
requires entry of the system PIN via a numeric keypad screen; this entry is shown
as the PIN button tap.
Guide to Basic GUI Functions
ON / OFF Switch the main power on, located at the back of the unit
above the AC cord.
Battery Power Switch on the battery power located on the left of the
Recessed Electrical Panel. This is essential if monitoring
is required in the event of a power failure.
Change Set Point Tap Home > Setup > Setup > Enter PIN > Enter > Change >
Set Point > +/- > Save
Silence Alarm Tap Home > Setup > Silence
Event Log Tap Home > Setup > Event Log > Prev. Page, Next Page
Chart History Tap Home > Setup > Chart History
Guide to Advanced GUI Functions
Alarm Setup Tap Home > Setup > Setup > Enter PIN > Enter > Alarms >
xxx Delay > +/- > Save
Date and Time Tap Home > Setup > Setup > PIN > Date & Time > +/- > Save
Change PIN Tap Home > Setup > Setup > Enter PIN > Enter > PIN > Enter
New PIN > Enter > Re-enter New PIN > Enter
Calibrate RTDs Requires Authorized Service & PIN
Tap Home > Setup > About > Service > RTD Calibr. > RTD
Select > +/- > Calib.
5. Operation

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5.1.3 – Swift Graphical User Interface (GUI) Instructions
1. Start Screen:
Turn On Freezer and Battery Power
• Stirling Ultracold splash screen will appear for 3 seconds
2. Home Screen:
The Home screen will be displayed next
• Tap the Setup button to proceed to system settings