Helmer Scientific iLF120 Service And Maintenance Manual
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Helmer Scientific iLF120 Service And Maintenance Manual

I.series, horizon series
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Laboratory
i.Series
iLF120, iLF125
Horizon Series
HLF120, HLF125
Plasma Storage
i.Series
iPF120, iPF125
Horizon Series
HPF120, HPF125
360144-D/E
Freezer Service and Maintenance Manual
®
i.Series
and Horizon Series™
360370/A

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  • Page 1 Freezer Service and Maintenance Manual ® i.Series and Horizon Series™ Laboratory i.Series iLF120, iLF125 Horizon Series HLF120, HLF125 Plasma Storage i.Series iPF120, iPF125 Horizon Series HPF120, HPF125 360370/A 360144-D/E...
  • Page 2 Helmer Scientific. Helmer Scientific 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 Scientific considers only the most recent revision of this document to be valid.

  • Page 3: Table Of Contents

    Helmer Scientific i.Series and Horizon Series Freezer - Upright Service and Maintenance Manual ® ™ Contents About this Manual ....................4 Safety Precautions and Symbols .
  • Page 4 Helmer Scientific i.Series and Horizon Series Freezer - Upright Service and Maintenance Manual ® ™ 11.2 Test and Replace Back-up Batteries ................47 11.3...

  • Page 5: About This Manual

    Helmer Scientific i.Series and Horizon Series Freezer - Upright Service and Maintenance Manual ® ™ About this Manual ® ™ This manual provides information on how to use i.Series and Horizon Series laboratory and plasma storage freezers. It is intended for use by end users of the freezer and authorized service technicians.

  • Page 6: Model And Input Power

    Helmer Scientific i.Series and Horizon Series Freezer - Upright Service and Maintenance Manual ® ™ Avoiding Injury ♦ Review safety instructions before installing, using, or maintaining the equipment. ♦ Do not open multiple, loaded drawers at the same time. ♦ Do not move a unit whose load exceeds 900 lbs (408 kg).

  • Page 7: Installation And Configuration

    Helmer Scientific i.Series and Horizon Series Freezer - Upright Service and Maintenance Manual ® ™ i.Series Information Installation and Configuration Location Requirements ♦ Grounded outlet meeting the electrical requirements listed on the product specification label. ♦ Clear of direct sunlight, high temperature sources, and heating and air conditioning vents. ♦ Minimum 3” (76 mm) of space behind unit.

  • Page 8: Prepare For Monitoring

    Helmer Scientific i.Series and Horizon Series Freezer - Upright Service and Maintenance Manual ® ™ Prepare for Monitoring The battery is located on the top of the freezer and is switched off for shipping. Switch battery on to provide monitoring system with back-up power in the event of AC power failure.
  • Page 9 Helmer Scientific i.Series and Horizon Series Freezer - Upright Service and Maintenance Manual ® ™ Set Up and Operation Access chart recorder by pressing and releasing the door. Install Battery Connect the leads to the battery to provide back-up power to the chart recorder.

  • Page 10: Configure Storage

    Helmer Scientific i.Series and Horizon Series Freezer - Upright Service and Maintenance Manual ® ™ 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.

  • Page 11: Optional Adapter Kits For Medication Dispensing Locks

    Helmer Scientific i.Series and Horizon Series Freezer - Upright Service and Maintenance Manual ® ™ 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.

  • Page 12: Controls

    Helmer Scientific i.Series and Horizon Series Freezer - Upright Service and Maintenance Manual ® ™ Controls i.Series models are equipped with the i.C monitoring and control system. The i.C system combines temperature control and monitoring into a single user interface.

  • Page 13: Settings

    Helmer Scientific i.Series and Horizon Series Freezer - Upright Service and Maintenance Manual ® ™ Settings > Through the i.C³ monitoring and control system, current settings may be viewed and changed. To view settings, touch i.C³ APPS, Settings. Use a touch-drag motion to scroll up or down to display additional settings.
  • Page 14 Helmer Scientific i.Series and Horizon Series Freezer - Upright Service and Maintenance Manual ® ™ Device Control Settings Device control settings are programmed at the factory. Setpoints can be viewed and changed through the i.C³ monitoring and control system. To view temperature setpoints, touch i.C³ APPS, Settings, Device Control Settings.
  • Page 15 Helmer Scientific i.Series and Horizon Series Freezer - Upright Service and Maintenance Manual ® ™ Defrost Settings 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.
  • Page 16 Helmer Scientific i.Series and Horizon Series Freezer - Upright Service and Maintenance Manual ® ™ Alarm settings screen Change an Alarm Setting 1. Touch i.C APPS, Settings. 2. Enter the Settings password (default password is “1234”). 3. Scroll down and touch Alarm Settings.

  • Page 17: Sensor Calibration

    Helmer Scientific i.Series and Horizon Series Freezer - Upright Service and Maintenance Manual ® ™ Sensor Calibration > Sensor 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 i.C³ APPS, Settings and scroll down to Sensor Calibration.
  • Page 18 Helmer Scientific i.Series and Horizon Series Freezer - Upright Service and Maintenance Manual ® ™ Primary Monitor Probe Verify primary monitor probe is reading chamber temperature correctly by comparing probe reading to the temperature measured by calibrated reference thermometer. If the probe is not reading correctly, change the value displayed on the monitor.
  • Page 19 Helmer Scientific i.Series and Horizon Series Freezer - Upright Service and Maintenance Manual ® ™ Enter the new offset value 1. Touch i.C³ APPS, Settings. 2. Enter the Settings password. 3. Touch Sensor Calibration. 4. Touch the minus (-) or plus (+) on the Control Probe Offset spin box.
  • Page 20 Helmer Scientific i.Series and Horizon Series Freezer - Upright Service and Maintenance Manual ® ™ Setting Restored Value 50.0 °C Compressor Temperature Alarm Setpoint Compressor Temperature Alarm Time Delay 0 minutes -30.0 °C Chamber Setpoint 2.0 °C Chamber Hysteresis Delay on Start-Up 2 minutes...

  • Page 21: Maintenance

    Helmer Scientific i.Series and Horizon Series Freezer - Upright Service and Maintenance Manual ® ™ Maintenance Maintenance tasks should be completed according to the schedule below. CAUTION Maintenance should only be performed by trained refrigeration technicians. Notes • The preventive maintenance schedule provides recommended minimum requirements. Regulations or physical conditions at your organization may require maintenance items be performed more frequently, or only by designated service personnel.

  • Page 22: Alarm Tests

    Helmer Scientific i.Series and Horizon Series Freezer - Upright Service and Maintenance Manual ® ™ Alarm Tests > Test alarms to ensure they are working correctly. The freezer has alarms for chamber temperature, compressor temperature, door open (time), power failure, low battery, and power failure. To initiate alarm tests, touch i.C APPS, Temperature Alarm Test.

  • Page 23: Upgrade System Firmware

    Helmer Scientific i.Series and Horizon Series Freezer - Upright Service and Maintenance Manual ® ™ Cancel alarm test 1. Touch the Cancel Test icon to end the alarm test. “Test Stopped” is displayed in the Test Status section of the display.

  • Page 24: Test And Replace Back-Up Batteries

    Helmer Scientific i.Series and Horizon Series Freezer - Upright Service and Maintenance Manual ® ™ Test and Replace Back-up Batteries Monitoring System Back-up Battery On all i.C³ screens, the Battery icon will appear in the header bar when the system is running on battery power and the screen brightness will automatically be reduced.
  • Page 25 Helmer Scientific i.Series and Horizon Series Freezer - Upright Service and Maintenance Manual ® ™ Door Gaskets Clean with soft cloth and mild soap and water solution. Probe Bottles Clean and refill probe bottles 1. Remove probe from bottle. 2. Remove bottle from bracket.

  • Page 26: Service

    Helmer Scientific i.Series and Horizon Series Freezer - Upright Service and Maintenance Manual ® ™ Service Refrigerant CAUTION • Review all safety instructions prior to recharging refrigerant. Refer to Section 1.1 (Safety). • Maintenance should only be performed by trained refrigeration technicians.
  • Page 27 Helmer Scientific i.Series and Horizon Series Freezer - Upright Service and Maintenance Manual ® ™ to separate it from the unit cooler drain port. 7. Pivot the drain tube and drain hose upward to remove the assembly from the cabinet.

  • Page 28: Troubleshooting

    Helmer Scientific i.Series and Horizon Series Freezer - Upright Service and Maintenance Manual ® ™ Troubleshooting CAUTION Review all safety instructions prior to troubleshooting. Refer to Section 1.1. General Operation Problems Problem Possible Cause Action Pull the drawer out and confirm the slides are free of ice. De-ice if necessary. A drawer does not slide Ice buildup in the drawer slides.
  • Page 29 Helmer Scientific i.Series and Horizon Series Freezer - Upright Service and Maintenance Manual ® ™ Chamber Temperature Problems Problem Possible Cause Action Check the level of product simulation solution in the bottle. Clean and refill the The chamber temperature Probe bottle is empty, or the displayed is higher or lower amount of solution is too low.
  • Page 30 Helmer Scientific i.Series and Horizon Series Freezer - Upright Service and Maintenance Manual ® ™ Problem Possible Cause Action The High Temperature Probe bottle is empty. Check the level of product simulation solution in the bottle. Clean and refill alarm activates when the bottle if necessary.
  • Page 31 Helmer Scientific i.Series and Horizon Series Freezer - Upright Service and Maintenance Manual ® ™ Testing Problems Problem Possible Cause Action Confirm the alarm setpoints are set at the expected or correct values. The automatic temperature High Alarm setpoint is set significantly higher than the tests do not work. Test the temperature alarms manually.

  • Page 32: I.series ® Parts

    Helmer Scientific i.Series and Horizon Series Freezer - Upright Service and Maintenance Manual ® ™ i.Series ® Parts Note • Before replacing parts, protect items in freezer from extended exposure to adverse temperature. • Allow freezer temperature to stabilize at setpoint after replacing parts or after extended door opening.
  • Page 33 Helmer Scientific i.Series and Horizon Series Freezer - Upright Service and Maintenance Manual ® ™ Letter Description Model Part # Volts Letter Description Model Part # Volts Unit Cooler Assembly 800870-1 Drawer slide assembly 400541-4 (left side) Shown 800871-1 400541-2...
  • Page 34 Helmer Scientific i.Series and Horizon Series Freezer - Upright Service and Maintenance Manual ® ™ CAUTION • Disconnect the freezer from AC power before opening the electrical box. • Do not remove the cover from the condensate evaporator tray. Note The i.C³...

  • Page 35: Schematics

    Helmer Scientific i.Series and Horizon Series Freezer - Upright Service and Maintenance Manual ® ™ Schematics 8.1 iPF and iLF Models; 120 and 125 Configurations MAIN POWER 115V~ / 60 Hz 230V~ / 50 Hz 208/230V~ / 60 Hz POWER CORD From i.C3, J42, Pin 2 (F) UNIT COOLER...
  • Page 36 Helmer Scientific i.Series and Horizon Series Freezer - Upright Service and Maintenance Manual ® ™ Bezel Mount (iQ) Components Reset Speaker (iM) USB Host i.C3 Display PCBA SD Memory Card i.C3 LCD w/ Touch Screen LCD Back Light USB Port...

  • Page 37: Installation And Configuration

    Helmer Scientific i.Series and Horizon Series Freezer - Upright Service and Maintenance Manual ® ™ Horizon Series™ Information Installation and Configuration Location Requirements ♦ Grounded outlet meeting the electrical requirements listed on the product specification label. ♦ Clear of direct sunlight, high temperature sources, and heating and air conditioning vents. ♦ Minimum 3” (76 mm) of space behind unit.

  • Page 38: Prepare For Monitoring

    Helmer Scientific i.Series and Horizon Series Freezer - Upright Service and Maintenance Manual ® ™ Prepare for Monitoring The back-up battery is switched OFF for shipping. Switch the back-up battery switch ON to provide monitoring system with back-up power in the event of AC power failure.
  • Page 39 Helmer Scientific i.Series and Horizon Series Freezer - Upright Service and Maintenance Manual ® ™ 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.

  • Page 40: Configure Storage

    Helmer Scientific i.Series and Horizon Series Freezer - Upright Service and Maintenance Manual ® ™ 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.

  • Page 41: Optional Adapter Kits For Medication Dispensing Locks

    Helmer Scientific i.Series and Horizon Series Freezer - Upright Service and Maintenance Manual ® ™ 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.

  • Page 42: Controls

    Helmer Scientific i.Series and Horizon Series Freezer - Upright Service and Maintenance Manual ® ™ Controls Horizon Series models are equipped with a monitor and optional control system which allows users to view and change current settings. 10.1 Monitor and Control Interface Table 11.

  • Page 43: Alarm Reference

    Helmer Scientific i.Series and Horizon Series Freezer - Upright Service and Maintenance Manual ® ™ View minimum temperature recording. ♦ Press and hold the Down Arrow button for 1 second and listen for a single beep. ♦ The display will alternate between LO and a valid temperature value five (5) times followed by a single beep to indicate exit back to the temperature display.

  • Page 44: Settings

    Helmer Scientific i.Series and Horizon Series Freezer - Upright Service and Maintenance Manual ® ™ 10.3 Settings Temperature Settings Temperature settings are factory pre-set. Settings can be viewed and changed through the Monitor and Control interface. Table 13. Parameters, Indicators and Settings...
  • Page 45 Helmer Scientific i.Series and Horizon Series Freezer - Upright Service and Maintenance Manual ® ™ Alarm Settings The high and low temperature alarm settings may be changed by the operator. Temperature alarm setpoints specify the temperature at which an alarm activates. The setpoint for temperature alarms may be changed.
  • Page 46 Helmer Scientific i.Series and Horizon Series Freezer - Upright Service and Maintenance Manual ® ™ 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 offset value is used by the control system to compensate for the difference.

  • Page 47: Maintenance

    Helmer Scientific i.Series and Horizon Series Freezer - Upright Service and Maintenance Manual ® ™ Maintenance Maintenance tasks should be completed according to the schedule below. CAUTION Maintenance should only be performed by trained refrigeration technicians. Notes • The preventive maintenance schedule provides recommended minimum requirements. Regulations or physical conditions at your organization may require maintenance items be performed more frequently, or only by designated service personnel.

  • Page 48: Alarm Tests

    Helmer Scientific i.Series and Horizon Series Freezer - Upright Service and Maintenance Manual ® ™ 11.1 Alarm Tests Test alarms to ensure they are working correctly. The freezer has alarms for chamber temperature, power failure, and door open (time). Chamber Temperature Alarm Test NOTICE •...

  • Page 49: Check Probe Bottle

    Helmer Scientific i.Series and Horizon Series Freezer - Upright Service and Maintenance Manual ® ™ Check Optional Access Control System Battery During an AC power failure, the Access Control back-up battery provides back-up power to the magnetic Access Control lock. Test the Access Control back-up battery to ensure it is working properly.

  • Page 50: Service

    Helmer Scientific i.Series and Horizon Series Freezer - Upright Service and Maintenance Manual ® ™ Service 12.1 Refrigerant CAUTION • Review all safety instructions prior to recharging refrigerant. Refer to Section 1.1. • Maintenance should only be performed by trained refrigeration technicians.
  • Page 51 Helmer Scientific i.Series and Horizon Series Freezer - Upright Service and Maintenance Manual ® ™ Note Units without the Cold-Shield panel proceed to Step 10. 9. Loosen three screws securing Cold-Shield panel to the cabinet and slide panel to disengage from screws and remove.

  • Page 52: Troubleshooting

    Helmer Scientific i.Series and Horizon Series Freezer - Upright Service and Maintenance Manual ® ™ Troubleshooting CAUTION Review all safety instructions prior to troubleshooting. Refer to Section 1.1. 13.1 General Operation Problems Problem Possible Cause Action Pull the drawer out and confirm the slides are free of ice. De-ice if necessary. A drawer does not slide Ice buildup in the drawer slides.
  • Page 53 Helmer Scientific i.Series and Horizon Series Freezer - Upright Service and Maintenance Manual ® ™ Problem Possible Cause Action Check if there are any items that may obstruct air flow and remove them if The chamber temperature Circulation in the chamber is not does not stabilize at the adequate. necessary. freezer setpoint. Unit cooler fan is not running.

  • Page 54: Alarm Activation Problems

    Helmer Scientific i.Series and Horizon Series Freezer - Upright Service and Maintenance Manual ® ™ 13.3 Alarm Activation Problems Problem Possible Cause Action The freezer meets an alarm Alarm setpoint was changed. Check the current setpoints for the alarms. condition, but the appropriate A component is faulty or internal Contact Helmer Technical Service.
  • Page 55 Helmer Scientific i.Series and Horizon Series Freezer - Upright Service and Maintenance Manual ® ™ Problem Possible Cause Action Confirm the drain tube is free of debris. Remove debris if necessary. After a defrost cycle, no Drain line is plugged. water flows into the water Confirm the drain line heater is warm to the touch. Contact Helmer Technical Drain line heater is faulty. evaporation tray. Service to resolve issues as necessary.

  • Page 56: Horizon Series™ Parts

    Helmer Scientific i.Series and Horizon Series Freezer - Upright Service and Maintenance Manual ® ™ Horizon Series™ Parts Note • Before replacing parts, protect items in freezer from extended exposure to adverse temperature. • Allow freezer temperature to stabilize at setpoint after replacing parts or after extended door opening.
  • Page 57 Helmer Scientific i.Series and Horizon Series Freezer - Upright Service and Maintenance Manual ® ™ Letter Description Model Part # Volts Letter Description Model Part # Chart recorder probe 800024-1 Full shelf 400414-1 (includes hardware) Primary monitor probe 800029-1 400414-2...
  • Page 58 Helmer Scientific i.Series and Horizon Series Freezer - Upright Service and Maintenance Manual ® ™ CAUTION • Disconnect the freezer from AC power before opening the electrical box. • Do not remove the cover from the condensate evaporator tray. Note The control board is sensitive to static electricity and can be damaged by electrostatic discharge.

  • Page 59: Schematics

    Helmer Scientific i.Series and Horizon Series Freezer - Upright Service and Maintenance Manual ® ™ Schematics 15.1 HPF and HLF Models; 120 and 125 Configurations without Access Control 360370/A...

  • Page 60: Hpf And Hlf Models; 120 And 125 Configurations With Access Control

    Helmer Scientific i.Series and Horizon Series Freezer - Upright Service and Maintenance Manual ® ™ 15.2 HPF and HLF Models; 120 and 125 Configurations with Access Control 360370/A...

  • Page 61: Appendix A: Compliance

    Helmer Scientific i.Series and Horizon Series Freezer - Upright Service and Maintenance Manual ® ™ Appendix A: Compliance Regulatory Compliance This device complies with the requirements of directive 93/42/EEC concerning Medical Devices, as amended by 2007/47/EC. Sound level is less than 70 dB(A).

  • Page 62: Appendix B: Warranty

    Helmer Scientific i.Series and Horizon Series Freezer - Upright Service and Maintenance Manual ® ™ Appendix B: Warranty Rel.i™ Product Warranty USA and Canada For technical service needs, please contact Helmer at 800-743-5637 or www.helmerinc.com. Have the model and serial number available when calling.
  • Page 63 Helmer Scientific i.Series and Horizon Series Freezer - Upright Service and Maintenance Manual ® ™ END OF MANUAL 360370/A...
  • Page 64 Helmer Scientific 14400 Bergen Boulevard, Noblesville, IN 46060 USA 360370/A Copyright © 2016 Helmer, Inc.

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