Helmer Scientific i.Series Installation and user guide

360142-D/D
Freezer Service and Maintenance Manual
i.Series®and Horizon Series™ - Undercounter
Laboratory
i.Series
iLF104-ADA, iLF105 (Version D)
Horizon Series
HLF104-ADA, HLF105 (Version D)
Plasma Storage
i.Series
iPF104-ADA, iPF105 (Version D)
Horizon Series
HPF104-ADA, HPF105 (Version D)

Document Updates
The document is furnished for information use only, is subject to change without notice and should not be construed as a
commitment by Helmer Scientic. Helmer Scientic assumes no responsibility or liability for any errors or inaccuracies that may
appear in the informational content contained in this material. For the purpose of clarity, Helmer Scientic considers only the most
recent revision of this document to be valid.
Notices and Disclaimers
Condential / Proprietary Notices
Use of any portion(s) of this document to copy, translate, disassemble or decompile, or create or attempt to create by reverse
engineering or otherwise the information from Helmer Scientic products is expressly prohibited.
Copyright and Trademark
Copyright © 2016 Helmer, Inc. Helmer®, i.Series®, i.C³®, Horizon Series™, and Rel.i™ are registered trademarks or trademarks of
Helmer, Inc. in the United States of America. All other trademarks and registered trademarks are the property of their respective
owners. Helmer, Inc., doing business as (DBA) Helmer Scientic and Helmer.
Disclaimer
This manual is intended as a guide to provide the operator with necessary instructions on the proper use and maintenance of
certain Helmer Scientic products.
Any failure to follow the instructions as described could result in impaired product function, injury to the operator or others, or void
applicable product warranties. Helmer Scientic accepts no responsibility for liability resulting from improper use or maintenance of
its products.
The screenshots and component images appearing in this guide are provided for illustrative purposes only, and may vary slightly
from the actual software screens and/or product components.
Helmer Scientic
14400 Bergen Boulevard
Noblesville, IN 46060 USA
www.helmerinc.com
ISO 13485:2003 CERTIFIED Part No. 360142-D/ Rev E
Document History
Revision Date CO Supersession Revision Description
A 11 DEC 2012 8187 n/a Initial release.
B 04 DEC 2013 8953 B supersedes A • Removed all references to mechanical Access Control.
• Added references to magnetic Access Control.
C 27 JAN 2014* 9083 C supersedes B Corrected electrical schematics for i.Series and Horizon Series.
D 16 MAR 2015 10319 D supersedes C
• Updated instruction in Section III, Items 13.1 through 13.6.3 to reect use of
monitor and control interface with new Min/Max temperature recording feature.
• Added Document Updates, to Document History page.
• Added Condential / Proprietary Notice, Section I, Item 1.4 and Disclaimer,
Section I, Item 1.5.
E25 APR 2016 11821 E supersedes D and 360166-D Rev A, B,
C, D, E
• Combined all undercounter product model information in one manual.
• Added Product Loading Guideliens in response to CAPA 10843
• Reformatted content for ease of use.
* Date submitted for Change Order review. Actual release date may vary.

Helmer Scientic i.Series® and Horizon Series™Freezer - Undercounter Service and Maintenance Manual
360142-D/E ii
Contents
1 About this Manual ...................................................................................4
1.1 Safety Precautions and Symbols. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.2 Model and Input Power ...........................................................................5
1.3 Product Labels. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2 InstallationandConguration .........................................................................6
2.1 Location Requirements ...........................................................................6
2.2 Placement and Leveling ..........................................................................6
2.3 Stacked Undercounter Units .......................................................................6
2.4 Connect Back-Up Power ..........................................................................6
2.5 Prepare for Monitoring............................................................................7
2.6 Congure Storage ..............................................................................10
2.7 Optional Adapter Kits for Medication Dispensing Locks ..................................................11
2.8 Reverse Door Hinges and Handle..................................................................12
3 Controls...........................................................................................15
3.1 Home Screen and Screensaver ...................................................................15
3.2 Home Screen Functions .........................................................................15
3.3 Alarm Reference ...............................................................................15
3.4 Settings ......................................................................................16
3.5 Temperature Calibration .........................................................................19
4 Maintenance .......................................................................................23
4.1 Alarm Tests ...................................................................................24
4.2 Upgrade System Firmware .......................................................................25
4.3 Test and Replace Back-up Batteries ................................................................26
4.4 Check Probe Bottle .............................................................................26
4.5 Clean Freezer .................................................................................26
5 Service. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
5.1 Refrigerant....................................................................................28
5.2 Remove / Replace Unit Cooler Cover ...............................................................28
6 Troubleshooting.................................................................................... 30
6.1 General Operation Problems......................................................................30
6.2 Chamber Temperature Problems ..................................................................30
6.3 Alarm Activation Problems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
6.4 Testing Problems...............................................................................32
6.5 Condensation and Icing Problems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
7 i.Series®Parts......................................................................................34
8 Schematics ........................................................................................37
8.1 iPF and iLF Models; 104 and 105 Conguration .......................................................37
8.2 iPF and iLF Models; 105 Conguration ..............................................................38

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360142-D/E iii
9 InstallationandConguration ........................................................................39
9.1 Location Requirements ..........................................................................39
9.2 Placement and Leveling .........................................................................39
9.3 Stacked Undercounter Units ......................................................................39
9.4 Connect Back-Up Power .........................................................................39
9.5 Defrost Events.................................................................................40
9.6 Prepare for Monitoring...........................................................................41
9.7 Congure Storage ..............................................................................43
9.8 Optional Adapter Kits for Medication Dispensing Locks .................................................44
9.9 Reverse Door Hinges and Handle..................................................................44
10 Controls...........................................................................................48
10.1 Monitor and Control Interface .....................................................................48
10.2 Alarm Reference ...............................................................................49
10.3 Settings ......................................................................................50
11 Maintenance .......................................................................................53
11.1 Alarm Tests ...................................................................................54
11.2 Test and Replace Back-up Batteries ................................................................54
11.3 Check Probe Bottle .............................................................................55
11.4 Clean the Freezer ..............................................................................55
12 Service. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
12.1 Refrigerant....................................................................................56
12.2 Remove / Replace Unit Cooler Cover ...............................................................56
13 Troubleshooting.................................................................................... 58
13.1 General Operation Problems......................................................................58
13.2 Chamber Temperature Problems ..................................................................58
13.3 Alarm Activation Problems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
13.4 Condensation and Icing Problems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
14 Horizon Parts ......................................................................................62
15 Schematics ........................................................................................65
15.1 HPF and HLF Models; 104 and 105 Conguration (without Access Control) .................................65
15.2 HPF and HLF Models; 104 and 105 Conguration (with Access Control).................................... 66
Appendix A: Compliance ................................................................................ 67
Appendix B: Warranty...................................................................................68

Helmer Scientic i.Series® and Horizon Series™Freezer - Undercounter Service and Maintenance Manual
360142-D/E 4
1 About this Manual
This manual provides information on how to use i.Series®and Horizon Series™undercounter laboratory and plasma storage
freezers. It is intended for use by end users of the freezer and authorized service technicians.
Models are indicated by a distinguishing model number that corresponds to the series, type, number of doors, and capacity of the
freezer. For example, “iLF105” refers to an i.Series Laboratory Freezer with 1 door and a capacity of 5 cu ft, while “HLF104” refers
to a Horizon Series Laboratory Freezer with 1 door and a capacity of 4 cu ft.
Generic references are used throughout this manual to group models that contain similar features. For example, “105 models”
refers to all models of that size (iPF104, iPF105, HPF104, HPF105, iLF104, iLF105, HLF104, HLF105). This manual covers all
undercounter freezers, which may be identied singly, by their size, or by their respective “Series.”
1.1 Safety Precautions and Symbols
Symbols found in this document
The following symbols are used in this manual to emphasize certain details for the user:
Task Indicates procedures which need to be followed.
Note Provides useful information regarding a procedure or operating technique when using Helmer
Scientic products.
NOTICE Advises the user against initiating an action or creating a situation which could result in damage to
equipment; person injury is unlikely.
CAUTION Advises the user against initiating an action or creating a situation which could result in damage
to equipment or impair the quality of the products or cause minor injury.
WARNING Advises the user against initiating an action or creating a situation which could result in damage
to equipment and serious personal injury to a patient or the user.
Manufacturer
Authorized representative in the European Community
Symbols found on the units
The following symbols may be found on the freezer or freezer packaging:
CE Mark (European units only) Earth / ground terminal
Caution: Risk of damage to equipment or
danger to operator Protective earth / ground terminal
Caution: Hot surface Compliance with Restriction of Hazardous
Substances Directive
Caution: Shock / electrical hazard Compliance with European Union Directive
WEEE 2002/96/EC applicable provisions.
Caution: Unlock all casters
EC REP

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Avoiding Injury
Review safety instructions before installing, using, or maintaining the equipment.
♦ Before moving unit, ensure door is closed and casters (if installed) are unlocked and free of debris.
♦Before moving unit, disconnect the AC power cord and secure the cord.
♦Never physically restrict any moving component.
♦Avoid removing electrical service panels and access panels unless so instructed.
♦Keep hands away from pinch points when closing the door.
♦Avoid sharp edges when working inside the electrical compartment and refrigeration compartment.
♦Ensure biological materials are stored at recommended temperatures determined by standards, literature, or good
laboratory practices.
♦ Proceed with caution when adding and removing samples from the freezer.
♦Do not open multiple, loaded drawers or baskets at the same time.
♦Use manufacturer supplied power cord only.
♦ Using the equipment in a manner not specied by Helmer Scientic may impair the protection provided by the
equipment.
♦Ensure biological materials are stored safely, in accordance with all applicable organizational, regulatory, and legal
requirements.
CAUTION
Decontaminate parts prior to sending for service or repair. Contact Helmer Scientic or your distributor for
decontamination instructions and a Return Authorization Number.
1.2 Model and Input Power
Note
Service information varies depending on the model and power requirements.
Table 1. Model and Input Power
Model Voltage Frequency Current Draw
104 115V 60 Hz 5.0 A
105
115V 60 Hz 5.0 A
230V 50 Hz 4.0 A
230V 60 Hz 3.25 A
1.3 Product Labels
This information appears on the product specication label, located on the rear of the freezer. The model also appears on a label
located in the chamber on the upper side of the right wall.
Sample Product Specication label
A
B
C
Label Description
AModel (REF)
BSerial number (SN)
CPower requirements

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360142-D/E 6
i.Series Information
2 InstallationandConguration
2.1 Location Requirements
♦ Grounded outlet meeting the electrical requirements listed on the product specication label.
♦Clear of direct sunlight, high temperature sources, and heating and air conditioning vents.
♦ Minimum 3”(76 mm) of space behind unit.
♦ Meets limits specied for ambient temperature (15 °C to 32 °C) and relative humidity.
2.2 Placement and Leveling
CAUTION
• To prevent tipping, ensure the casters (if installed) are unlocked and the door is closed before moving the freezer.
• Do not sit, lean, push or place heavy objects on top surface.
1. Move freezer into place. Lock casters if installed.
2. Ensure freezer is level.
Note
Helmer recommends the use of leveling feet and wall and oor brackets (PN 400472-2) for stabilization. Contact Helmer
Technical Service for parts and instruction.
2.3 Stacked Undercounter Units
CAUTION
• For stacked conguration, both units must have leveling feet installed.
• Back brace bars and front stabilizing brackets must be installed (Blue - PN 400821-1; Stainless Steel - PN 400821-2)
• When stacking units, place the heavier unit on the bottom.
• Do not open multiple loaded drawers or baskets at the same time.
Contact Helmer or your distributor for more information regarding the stacking kit and methods to secure both units to the wall
and/or oor.
2.4 Connect Back-Up Power
The monitoring system and chart recorder each have a back-up battery system enabling a period of continuous operation if power
is lost.
Battery life varies by manufacturer as well as voltage level remaining. Providing full power is available and no battery-related
alarms are active, back-up power for the monitoring system is available, back-up power for the optional Access Control system is
available for up to 2.5 hours.
CAUTION
Before installing or replacing batteries, switch AC power and back-up battery switch OFF. Disconnect freezer from
AC power.
Notes
• The optional Access Control system uses the monitoring system back-up battery for back-up power in the event of
power failure.
• The monitoring system will start on back-up battery power alone. If the freezer was not previously connected to AC
power and the back-up battery is switched on, the monitoring system will begin running on back-up power.
• If AC power is lost, the monitoring system will automatically disable some features to prolong back-up battery power.
Data collection will continue until back-up power is depleted.
i.Series Information

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The back-up battery is located below the chamber, behind the front panel. The panel cover must be removed to access the battery.
Monitoring system back-up battery.
2.5 Prepare for Monitoring
The back-up battery is switched OFF for shipping. Switch back-up battery ON to provide the monitoring system and optional
Access Control system with back-up power in the event of AC power failure.
Temperature Probes
Notes
• Temperature probes are fragile; handle with care.
• Remote probes may also be introduced through the existing port and immersed in existing probe bottles.
The probe bottle along with a container of propylene glycol have been provided with this unit. The propylene glycol is mixed with
water to create a solution which simulates the product stored in the freezer. The product simulation solution temperature reects
the product’s temperature during normal operation.
The probe bottle should contain 4 oz. (120 mL) of product simulation solution at a 1:1 ratio of water to propylene glycol.
Left: Probe bottle with temperature probe Right: Rear access port
Fill Probe Bottle
1. Remove all probes from bottle and remove bottle from bracket.
2. Remove cap and ll with 4 oz (120 mL) of product simulation solution.
3. Install cap and place bottle in bracket.
4. Replace probes, immersing at least 2” (50 mm) in solution.
Install Additional Probe Through Rear Port
1. Peel back putty to expose port.
2. Insert probe through port into chamber.
3. Insert probe into bottle.
4. Replace putty, ensuring a tight seal.
i.Series Information

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360142-D/E 8
Chart Recorder (if included)
Notes
• If chart recorder has been operating on battery power, the battery should be replaced to ensure the back-up source has
proper charge.
• For complete information, refer to the Temperature Chart Recorder Operation and Service Manual included with the
unit.
The chart recorder has a back-up battery system, enabling a period of continuous operation if power is lost. Battery life varies by
manufacturer as well as voltage level remaining. Providing full power is available, back-up power for the temperature chart recorder
is available for up to 14 hours.
Prior to use:
Route the chart recorder probe through the rear access port and place in bottle with primary monitor probe.
Set Up and Operation
Access chart recorder by pulling the door open.
Install Battery
Connect the leads to the battery to provide back-up power to the chart recorder.
Install / Replace Chart Paper
Notes
• For accurate temperature reading, ensure the current time is aligned with the time line groove when chart knob is tightened
• Contact Helmer Customer Service to reorder chart paper; part number 220366 (52 sheets).
Chart recorder stylus and time line groove
1. Press and hold C button. When stylus begins to move left, release button. The LED ashes to indicate current
temperature range.
2. When stylus stops moving, remove chart knob then move knob up and away.
3. Place chart paper on chart recorder.
4. Gently lift stylus and rotate paper so current time line corresponds to time line groove.
5. Hold chart paper and reinstall chart knob is fully tightened. (Failure to fully tighten the knob can result in paper slipping
and losing time.)
6. Press and hold C button. When stylus begins to move right, release button.
7. Conrm stylus is marking on paper and stops at the correct temperature.
8. Calibrate chart recorder to match primary temperature if needed and close recorder door.
i.Series Information

Helmer Scientic i.Series® and Horizon Series™Freezer - Undercounter Service and Maintenance Manual
360142-D/E 9
External Monitoring Devices
The remote alarm interface is a relay switch with three terminals:
♦ Common (COM)
♦ Normally Open (NO)
♦ Normally Closed (NC)
Terminals are dry contacts and do not supply voltage. Interface circuit is either normally open or normally closed, depending on
terminals used.
Requirements for your alarm system determine which alarm wires must connect to terminals.
CAUTION
• The interface on the remote alarm monitoring system is intended for connection to the end user’s central alarm
system(s) that uses normally-open or normally-closed dry contacts.
• If an external power supply exceeding 33 V (RMS) or 70 V (DC) is connected to the remote alarm monitoring system’s
circuit, the remote alarm will not function properly and may cause damage to the control board or result in injury to the user.
The terminal on the remote alarm interface have the following maximum load capacity:
♦ 0.5 A at 125 V (AC)
♦ 1 A at 250 V (DC)
Connect to Remote Alarm Interface
1. On back of freezer, locate the remote alarm terminals.
2. Connect remote alarm wires to appropriate terminals, according to requirements for your alarm system.
3. Use a cable tie to relieve strain on alarm wires (as necessary).
i.Series Information

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360142-D/E 10
2.6 CongureStorage
CAUTION
• Before moving drawers, ensure they are completely empty for safe lifting.
• Maximum basket, drawer, or shelf load is 100 lbs (46 kg).
Note
Before moving storage components, protect stored items in freezer from extended exposure to adverse temperature.
Product Loading Guidelines
When loading your freezer, take care to observe the following guidelines:
♦Never load freezer beyond capacity.
♦Always store items within shelves, drawers or baskets.
♦ Temperature uniformity is maintained by air circulation, which could be impeded if unit is overlled, particularly at the
top or back. Ensure proper clearance is provided below the fan.
Note
Products stacked against back wall may obstruct air ow and a󰀨ect performance of unit.
Drawers and Baskets
Remove drawer or basket
1. Pull drawer or basket out until it stops.
2. Tilt the front of the drawer or basket upward.
3. Pull drawer or basket free of the slides.
Install a drawer or basket
1. Align end guides on drawer or basket with the slides.
2. Gently push drawer or basket into chamber until it stops.
3. Pull drawer or basket out until it stops; check for smooth operation.
Move drawer slides
1. Using a screwdriver, remove front bracket retainers.
2. Tap front brackets upward to disengage standards.
3. Remove slides from standards.
4. Insert slides into standard at appropriate height.
5. Tap front brackets downward to engage standards.
6. Using a screwdriver, install front bracket retainers.
Shelves
Remove shelf
1. With one hand, lift front edge of the shelf from the front brackets.
2. With the other hand, reach under the shelf and bump rear edge of the shelf upward to disengage rear brackets.
Install shelf
1. Insert shelf into chamber, placing it on brackets.
2. Gently bump rear edge of the shelf downward to engage brackets.
3. Pulling shelf forward gently; shelf should not disengage from rear brackets.
i.Series Information

Helmer Scientic i.Series® and Horizon Series™Freezer - Undercounter Service and Maintenance Manual
360142-D/E 11
Move shelf brackets
1. Using a screwdriver, remove front bracket retainers.
2. Tap front brackets upward to disengage standards.
3. Remove front brackets from standards.
4. Insert front brackets into standard at appropriate height.
5. Tap front brackets downward to engage standards.
6. Using a screwdriver, install front bracket retainers.
2.7 Optional Adapter Kits for Medication Dispensing Locks
Contact Helmer Technical Service or your distributor for service documentation pertaining to medication dispensing locks.
i.Series Information

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360142-D/E 12
2.8 Reverse Door Hinges and Handle
Notes
• The following instructions apply to a reversing right-hinged door to a left-hinged door. Some steps will need to be
reversed if changing from left-hinged to right-hinged.
• Before reversing door hinge and handle, protect stored items in freezer from extended exposure to adverse
temperature.
• The door hinge and handle cannot be reversed on freezers equipped with Access Control.
• Unit must be on oor or an elevated work surface with adequate space to place door face-down in front of unit.
• To prevent personal injury and/or damage to the door, Helmer recommends two people for this procedure.
Remove door and hinges
1. With access panel cover closed, remove four screws securing the kick plate to the unit. Set kick plate and screws aside.
2. Open the front access panel and switch main power switch to OFF; switch back-up battery switch to OFF; disconnect
AC power cord from power receptacle.
3. Remove six screws securing the access panel and cover to the unit and carefully place them in front of the unit ensuring
there is no strain on the wiring.
4. Remove plug from access panel on handle-side of unit. Remove grommet from hole on hinged-side of unit and slide
braided sleeve out of the slot.
5. Cut zip tie holding power cable inside the unit.
6. Remove four screws securing door handle assembly to the door and set assembly aside.
7. Remove two screws attaching the strike plate and spacer to the unit and set aside.
1
2
34A
4B
5
67
i.Series Information

Helmer Scientic i.Series® and Horizon Series™Freezer - Undercounter Service and Maintenance Manual
360142-D/E 13
8. With door shut, remove cover plate from both hinges.
9. Remove the lower hinge spring assembly using a punch or J-hook tool to engage the left-most hole in the spring cap
and rotate the spring cap from left to right and hold.
10. Using needle-nose pliers, remove the pin from the spring cap and slowly release spring back to the left.
11. Using a punch or J-hook tool to engage any hole in the spring cap, compress spring downward.
12. Remove spring assembly from lower hinge and set aside.
13. Supporting the door, remove ve screws attaching lower hinge to door and unit, and noting the size and location of
each screw. Set the hinge aside.
14. Remove the ve screws attaching the upper hinge to the door and unit, and noting the size and location of each screw.
Set the hinge aside.
Reroute communication cables
1. Carefully place door face-down in front of the unit taking care not to damage the display assembly and ensuring there is
no strain on cables running from the cabinet to the door.
2. Remove the remaining screws from the door assembly. Using a punch or J-hook tool along the bottom edge, lift the
inner door frame out of the outer door frame.
3. Remove the plug from the door on the handle-side and set aside.
4. Pull grommet out of hole in door on hinged-side and slide the braided sleeve out of the slot.
5. Reroute the power and communication cables along the inside edge of the door and through the slot in the corner
opposite their initial location.
6. Tape cables to inside of door ensuring any excess cable is on the outside of the door.
10
13
9
8Spring
Washer
Pin
Internal
Hex Cap
Spring Cap
Bushing
2 3 4
58
i.Series Information

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360142-D/E 14
7. Cut zip ties that are securing the braided sleeve and slide the sleeve and grommets along the cables toward the door.
8. Slip braided sleeve through the slot in the door and insert the door-side grommet into the hole in the door.
9. Secure braided sleeve around cables using zip ties at each end to prevent sleeve from sliding.
Reassemble door / Reverse hinges
1. Reinstall inner door panel and secure with screws in holes opposite original conguration.
2. Reinstall hinges onto opposite side of door frame by aligning holes in hinge plates with holes in door frame and hand-
threading the two long screws in each hinge (leave screws slightly loose).
3. Lift door to cabinet and align holes in the hinge plates with the corresponding holes in the cabinet.
4. Hand-thread three short screws through hinge and into cabinet ensuring the weight of the door does not rest on the
hinges.
5. Level the door and tighten all screws securing hinges to the unit.
6. Reroute power and communication cables across the front of the unit behind the access panel and secure with zip tie.
7. Slide the braided sleeve through the slot in the access panel allowing approximately 3” (76 mm) of slack between the
door and the cabinet so door can open and close without straining cables. Install grommet in access panel.
8. Attach door handle on opposite side of door with four screws.
9. Attach strike plate and spacer to opposite side of unit with two screws. Test locking mechanism to ensure proper
functionality.
10. With door closed, congure the hinge spring assembly for the opposite side of door.
11. Orient the bend in the coil toward the front of the freezer and slide the internal hex cap with washer onto upper hex
bolt in lower hinge plate.
12. Compress the spring upward using a punch or J-hook tool in the spring cap.
13. Slide the spring cap over the lower hex bolt in the lower hinge plate while compressing the spring.
14. Use a punch or J-hook tool to engage the right-most hole in the spring cap and rotate the spring cap from right to left,
and hold.
15. Count four holes, beginning with and including the hole closest to the end of the coil, and insert the pin in the fourth hole
16. Replace the hinge cover plates.
17. Reinstall access panel and cover securing with six screws.
18. Reinstall kick plate securing with four screws.
19. Plug power cord into power receptacle. Switch AC power switch ON. Switch back-up battery switch ON.
20. Verify door is level, hinges operate smoothly and door seals tightly.
21. Touch Mute to disable the high temperature alarm while freezer reaches operating temperature.
12 14-15
13
i.Series Information

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360142-D/E 15
3 Controls
i.Series models are equipped with the i.C3monitoring and control system. The i.C3system combines temperature control and
monitoring into a single user interface.
Note
Please refer to the i.C3 User Guide for complete information regarding the i.C3 User Interface.
3.1 Home Screen and Screensaver
The Home Screen is the default screen and is displayed when:
♦The Home icon is touched from any other screen.
♦There is no interaction for two minutes or any screen other than those used to enter a password.
Home Screen Screensaver
3.2 Home Screen Functions
Note
Refer to the i.C3 User Guide for options available on all i.C3screens.
♦View current interior cabinet temperature readings
♦View the current system time and date
♦ Access any of the ve homescreen applications (touch i.C3APPS for additional applications)
♦View information about current alarm events
♦View whether the monitoring system is running on battery power
♦Mute audible alarms
♦ Turn the chamber light on and o󰀨
♦View a graph of the chamber temperature
♦View unit ID
♦ Shortcut to Event Log
3.3 Alarm Reference
If an alarm condition is met, an alarm activates. Some alarms are visual only; others are visual and audible. Some alarms are
sent through the remote alarm interface. The table indicates if an alarm is audible (A), visual (V), or sent through the remote alarm
interface (R).
Table 3. i.Series Alarm Reference
Alarm Alarm Type Alarm Alarm Type
High Temperature A, V, R Low Battery V
Low Temperature A, V, R No Battery A, V, R
Compressor Temperature A, V, R Probe Failure A, V, R
Door Open (Time) A, V, R Communication Failure A, V, R
Power Failure A, V, R
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3.4 Settings
> >
Through the i.C³ monitoring and control system, current settings may be viewed and changed. To view settings, touch Home, i.C³
APPS, Settings. Use a touch-drag motion to scroll up or down to display additional settings.
Settings screens
Note
• If the Settings screen is password protected enter appropriate password. If viewing settings for the rst time, enter
factory default password of “1234”.
• Default values for general settings, alarm settings, and display settings are available in the i.C³ User Guide.
• Changing temperature settings a󰀨ects operation of the freezer. Do not change settings unless instructed in product
documentation or by Helmer Technical Service.
The i.C³ temperature monitor and controller is programmed at the factory. To change a setting, rst enter the Settings screen, then
the setting. The method for accessing the Settings mode for each setting varies
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Temperature Controller Programs
Temperature controller values are programmed at the factory. Setpoints can be viewed and changed through the i.C³ monitoring
and control system. To view temperature setpoints, touch Home, i.C³ APPS, Settings. Scroll down and touch the button beside
Temperature Setpoints to enter the Temperature Controller Programs screen.
Temperature Controller Programs screen
Table 4. Setpoints
Setting Model
104 / 105
Temperature Setpoint -30.0 °C
Hysteresis Setpoint 2.0 °C
Delay on Start-Up 2 minutes
Control Relay Probe Error Duty Cycle 100%
Defrost Time 15 minutes
Temperature Setpoint
The setpoint is the temperature at which the unit operates.
Note
If the Settings screen is password protected enter appropriate password. If viewing for the rst time, enter the factory
default password of “1234”.
Change the setpoint if your organization requires a chamber temperature other than -30.0 °C.
1. Touch i.C³ APPS, i.C³ Settings.
2. Enter the Settings password.
3. Scroll down and touch Temperature Setpoints.
4. Touch +or –on the Temperature Setpoint spin box.
Hysteresis Setpoint
Hysteresis is the allowable temperature variance on each side of the freezer setpoint.
Delay on Start-Up
Compressor start-up is delayed to allow the i.C3 monitoring and control system to start rst.
Control Relay Probe Error Duty Cycle
The duty cycle is the percentage of time the compressor will run in the event of a temperature control probe failure.
Note
Hysteresis, Delay on Start-up and Control Relay Probe Error Duty Cycle are factory-preset and should not be changed
unless directed by Helmer Technical Service.
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Defrost Time
Note
• Depending on the high temperature alarm setpoint and the actual temperature increase during the defrost cycle,
frequent door openings may trigger repeated high temperature alarms.
• There must be a minimum of four hours between defrost cycles.
Defrost events may be scheduled to occur at specic times. A defrost event can be triggered on demand without a󰀨ecting a
programmed defrosting schedule. The number of programmed defrost events is dependent on environmental conditions and the
frequency of usage. The recommended number of daily defrost cycles is three to four, at even intervals. Defrost events should take
place when the freezer door is opened infrequently.
The i.C³ monitoring and control system can perform a maximum of four defrost cycles per day.
1. Touch i.C³ APPS, Temperature Setpoints.
2. Touch the Manual Defrost: Start button; The Defrost icon will appear for the duration of the defrost cycle.
3. To cancel, touch the Manual Defrost: Stop button.
Table 2. Default Defrost Cycles
Defrost Event On/O󰀨 Default Time
1 On 12:00 AM
2 On 8:00 AM
3 On 4:00 PM
4O󰀨 6:00 PM
UserCongurableAlarmSettings
The following alarm settings may be changed by the operator. The setpoint for temperature alarms may be changed (where applicable),
as well as the time delay between when the alarm condition commences and when the visual and audible alarms are initiated.
Table5.UserCongurableAlarms
Alarm Description Default Setpoint Default Time Delay
High Temperature Chamber temperature reading is above high temperature alarm setpoint -20.0 °C 0 minutes
Low Temperature* Chamber temperature reading is below temperature alarm setpoint -35.0 °C 0 minutes
Power Failure Power to unit has been disrupted -1 minute
Probe Failure Temperature probe is not functioning properly -0 minutes
Door Open Door is open beyond user-specied duration -3 minutes
Compressor Temperature Compressor discharge temperature is too high 50.0 °C 0 minutes
Alarm settings screen
Change an alarm setting
1. Touch i.C3APPS, Settings.
2. Enter the Settings password (default password is “1234”).
3. Scroll down and touch Alarm Settings.
4. Touch +or -on the spin box corresponding to the alarm setting to be changed.
5. Touch Home to exit theAlarm Settings screen.
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Non-CongurableAlarms
The following alarms indicate operational conditions which require the attention of the operator or a qualied service technician.
Table6.Non-CongurableAlarm
Alarm Description
Low Battery Rechargeable battery voltage is low
Communication Failure Communication Failure 1
• Triggered if communication is lost between i.C3display board and control board
• Unit will continue to run with previously saved settings
• Screen will not display temperature changes or alarm conditions
• i.C3system will continue to reset until connection is re-established
Communication Failure 2
• Triggered if communication is lost between i.C3display board and internal system memory
• Unit will continue to run with previously saved settings
Communication Failure 3
• Triggered if the database is automatically created
• The database is archived and a new database is automatically created
• Unit will continue to run with previously saved settings
3.5 Temperature Calibration
> >
Temperature calibration values are programmed at the factory. Calibration values can be viewed and changed through the i.C³
monitoring and control system. To view calibration settings, touch Home, i.C³ APPS, Settings and scroll down to Temperature
Calibration.
Settings screen Temperature Calibration screen
Notes
• If the Settings screen is password protected, enter the appropriate password. If viewing settings for the rst time, enter
factory default password of “1234”.
• After two minutes of no interaction, the Home screen or Temperature Graph screensaver (if enabled) is displayed.
• Control Sensor and Control Sensor O󰀨set, Evaporator Defrost and Evaporator Defrost O󰀨set, and Compressor Probe
Temperature calibration settings are factory-preset and should not be changed unless directed by Helmer Technical Service.
Control Sensor
The temperature controller senses unit cooler temperature through the control probe in the unit cooler. The unit cooler temperature
typically varies from the chamber temperature, so an o󰀨set value is used by the control system to compensate for the di󰀨erence.
The temperature controller adjusts chamber temperature around the freezer setpoint by activating the compressor when the control
probe registers above the setpoint based on the hysteresis value.
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