Helmer Scientific i.Series Service And Maintenance Manual
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Summary of Contents for Helmer Scientific i.Series
- Page 1 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) 360142-D/D...
- 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.
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Page 3: Table Of Contents
Helmer Scientific i.Series and Horizon Series Freezer - Undercounter Service and Maintenance Manual ® ™ Contents About this Manual ................. . . 4 Safety Precautions and Symbols. - Page 4 Helmer Scientific i.Series and Horizon Series Freezer - Undercounter Service and Maintenance Manual ® ™ Installation and Configuration ............... . 39 Location Requirements .
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Page 5: About This Manual
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. -
Page 6: Model And Input Power
♦ 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 specified by Helmer Scientific may impair the protection provided by the equipment. -
Page 7: Installation And Configuration
Helmer Scientific i.Series and Horizon Series Freezer - Undercounter 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. -
Page 8: Prepare For Monitoring
Helmer Scientific i.Series and Horizon Series Freezer - Undercounter Service and Maintenance Manual ® ™ 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. - Page 9 Helmer Scientific i.Series and Horizon Series Freezer - Undercounter Service and Maintenance Manual ® ™ 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.
- Page 10 Helmer Scientific i.Series and Horizon Series Freezer - Undercounter 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.
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Page 11: 2.6 Configure Storage
Helmer Scientific i.Series and Horizon Series Freezer - Undercounter Service and Maintenance Manual ® ™ 2.6 Configure Storage CAUTION • Before moving drawers, ensure they are completely empty for safe lifting. • Maximum basket, drawer, or shelf load is 100 lbs (46 kg). -
Page 12: Optional Adapter Kits For Medication Dispensing Locks
Helmer Scientific i.Series and Horizon Series Freezer - Undercounter Service and Maintenance Manual ® ™ 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. -
Page 13: Reverse Door Hinges And Handle
Helmer Scientific i.Series and Horizon Series Freezer - Undercounter Service and Maintenance Manual ® ™ 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. - Page 14 Helmer Scientific i.Series and Horizon Series Freezer - Undercounter Service and Maintenance Manual ® ™ Bushing Spring Cap Spring Internal Hex Cap Washer 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.
- Page 15 Helmer Scientific i.Series and Horizon Series Freezer - Undercounter Service and Maintenance Manual ® ™ 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.
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Page 16: Controls
Freezer - Undercounter 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. Note Please refer to the i.C3 User Guide for complete information regarding the i.C3 User Interface. -
Page 17: Settings
Helmer Scientific i.Series and Horizon Series Freezer - Undercounter Service and Maintenance Manual ® ™ 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. - Page 18 Helmer Scientific i.Series and Horizon Series Freezer - Undercounter Service and Maintenance Manual ® ™ 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.
- Page 19 Helmer Scientific i.Series and Horizon Series Freezer - Undercounter Service and Maintenance Manual ® ™ 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.
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Page 20: Temperature Calibration
Helmer Scientific i.Series and Horizon Series Freezer - Undercounter Service and Maintenance Manual ® ™ Non-Configurable Alarms The following alarms indicate operational conditions which require the attention of the operator or a qualified service technician. Table 6. Non-Configurable Alarm Alarm Description Low Battery Rechargeable battery voltage is low... - Page 21 Helmer Scientific i.Series and Horizon Series Freezer - Undercounter Service and Maintenance Manual ® ™ Determine control sensor offset NOTICE • Control Sensor Offset is factory-preset and should not be changed. Contact Helmer Technical Service for instructions regarding changing the Control Sensor Offset.
- Page 22 Helmer Scientific i.Series and Horizon Series Freezer - Undercounter Service and Maintenance Manual ® ™ Compressor and Evaporator Probe The compressor and evaporator temperature probes have been factory-calibrated. Changing the calibration settings is not typically necessary and should not be performed unless directed by Helmer Technical Service.
- Page 23 Helmer Scientific i.Series and Horizon Series Freezer - Undercounter Service and Maintenance Manual ® ™ Setting Restored Value Defrost Event #1 On/Off Defrost Event #1 Start Time 12:00 AM Defrost Event #2 On/Off Defrost Event #2 Start Time 8:00 AM...
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Page 24: Maintenance
Frequency Task Quarterly 1 year 2 years As Needed • i.Series: Test the high and low temperature alarms. Test the power failure alarm (as required by your organization’s protocols). Models with Access Control Test the Access Control battery. -
Page 25: Alarm Tests
Helmer Scientific i.Series and Horizon Series Freezer - Undercounter 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 Home, i.C APPS, Temperature Alarm Test. -
Page 26: Upgrade System Firmware
Helmer Scientific i.Series and Horizon Series Freezer - Undercounter Service and Maintenance Manual ® ™ Cancel the test 1. Touch Home, i.C³ APPS, Temperature Alarm Test. 2. Touch Cancel Test. Note When cancelling an automatic test, the message indicating the test is in progress clears immediately. If a setpoint was reached before the test was cancelled, the alarm activates and clears as described earlier. -
Page 27: Test And Replace Back-Up Batteries
Helmer Scientific i.Series and Horizon Series Freezer - Undercounter 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 28 Helmer Scientific i.Series and Horizon Series Freezer - Undercounter Service and Maintenance Manual ® ™ Condenser Grill CAUTION Disconnect freezer from AC power when cleaning the condenser grill. In environments where the freezer is exposed to excessive lint or dust, the condenser grill may require cleaning more frequently than stated in preventive maintenance schedule.
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Page 29: Service
Helmer Scientific i.Series and Horizon Series Freezer - Undercounter 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 30 Helmer Scientific i.Series and Horizon Series Freezer - Undercounter Service and Maintenance Manual ® ™ 4. Cut the wire ties securing the drain line to the cabinet. 5. On the back of the unit, peel the putty back to expose the drain tube and drain heater.
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Page 31: Troubleshooting
Helmer Scientific i.Series and Horizon Series Freezer - Undercounter 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 A drawer or basket does not Debris in the drawer slides. -
Page 32: Alarm Activation Problems
Helmer Scientific i.Series and Horizon Series Freezer - Undercounter Service and Maintenance Manual ® ™ Problem Possible Cause Action The chamber temperature Temperature monitor/control Confirm the temperature controller or monitor/control board is operating does not stabilize at the board is faulty. -
Page 33: Testing Problems
Helmer Scientific i.Series and Horizon Series Freezer - Undercounter Service and Maintenance Manual ® ™ Problem Possible Cause Action The Door Open alarm is Door is not closing completely. Confirm hinges are free of dust and debris. Clean if necessary. -
Page 34: Condensation And Icing Problems
Helmer Scientific i.Series and Horizon Series Freezer - Undercounter Service and Maintenance Manual ® ™ Condensation and Icing Problems Problem Possible Cause Action There is excessive water Humid air is entering the Confirm the freezer is level and the door is aligned, closing tightly, and gasket... -
Page 35: I.series ® Parts
Helmer Scientific i.Series and Horizon Series Freezer - Undercounter 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 36 Helmer Scientific i.Series and Horizon Series Freezer - Undercounter Service and Maintenance Manual ® ™ Letter Description Model Part Number Volts Letter Description Model Part Number Volts Probe bottle and propylene glycol kit 400922-2 Unit cooler assembly 800131-1 Primary monitor probe...
- Page 37 Helmer Scientific i.Series and Horizon Series Freezer - Undercounter Service and Maintenance Manual ® ™ CAUTION Disconnect the freezer from AC power before accessing the electrical tray. Letter Description Part Number Volts Letter Description Model Part Number Volts Power supply board...
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Page 38: Schematics
Helmer Scientific i.Series and Horizon Series Freezer - Undercounter Service and Maintenance Manual ® ™ Schematics 8.1 iPF and iLF Models; 104 and 105 Configuration 360142-D/E... -
Page 39: 8.2 Ipf And Ilf Models; 105 Configuration
Helmer Scientific i.Series and Horizon Series Freezer - Undercounter Service and Maintenance Manual ® ™ 8.2 iPF and iLF Models; 105 Configuration Control Control Monitor 360142-D/E... - Page 40 Helmer Scientific i.Series and Horizon Series Freezer - Undercounter 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.
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Page 41: Defrost Events
Helmer Scientific i.Series and Horizon Series Freezer - Undercounter Service and Maintenance Manual ® ™ The monitoring system and optional Access Control back-up batteries are located below the chamber, behind the front cover. A panel cover must be removed to access the batteries. - Page 42 Helmer Scientific i.Series and Horizon Series Freezer - Undercounter Service and Maintenance Manual ® ™ Schedule a Defrost Event 1. Switch the AC ON/OFF switch OFF. Turn the Alarm Disable key switch OFF. 2. Remove the kick plate and pull out the electrical tray.
- Page 43 Helmer Scientific i.Series and Horizon Series Freezer - Undercounter Service and Maintenance Manual ® ™ 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.
- Page 44 Helmer Scientific i.Series and Horizon Series Freezer - Undercounter 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 45 Helmer Scientific i.Series and Horizon Series Freezer - Undercounter Service and Maintenance Manual ® ™ Drawers and Baskets Remove a Drawer or Basket 1. Pull drawer or basket out until it stops. 2. Tilt the front of the drawer or basket upward.
- Page 46 Helmer Scientific i.Series and Horizon Series Freezer - Undercounter Service and Maintenance Manual ® ™ 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.
- Page 47 Helmer Scientific i.Series and Horizon Series Freezer - Undercounter Service and Maintenance Manual ® ™ 12. Remove spring assembly from lower hinge and set aside. 13. Supporting the door, remove five screws attaching lower hinge to door and unit, and noting the size and location of each screw.
- Page 48 Helmer Scientific i.Series and Horizon Series Freezer - Undercounter Service and Maintenance Manual ® ™ 10. With door closed, configure the hinge spring assembly for the opposite side of door. 14-15 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.
- Page 49 Helmer Scientific i.Series and Horizon Series Freezer - Undercounter 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 50 Helmer Scientific i.Series and Horizon Series Freezer - Undercounter Service and Maintenance Manual ® ™ View minimum temperature recording. 1. Press and hold the Down Arrow button for 1 second and listen for a single beep. 2. 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 51 Helmer Scientific i.Series and Horizon Series Freezer - Undercounter Service and Maintenance Manual ® ™ 10.3 Settings Temperature setpoint The default setpoint for the freezer is -30.0 °C. This can be changed if your organization requires a chamber temperature other than -30.0 °C.
- Page 52 Helmer Scientific i.Series and Horizon Series Freezer - Undercounter 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 53 Helmer Scientific i.Series and Horizon Series Freezer - Undercounter 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 54 Helmer Scientific i.Series and Horizon Series Freezer - Undercounter Service and Maintenance Manual ® ™ Maintenance Maintenance tasks should be completed according to the schedule below. CAUTION • Review all safety instructions prior to recharging refrigerant. Refer to Section 1.1 (Safety).
- Page 55 Helmer Scientific i.Series and Horizon Series Freezer - Undercounter Service and Maintenance Manual ® ™ 11.1 Alarm Tests Alarms should be tested to ensure they are working correctly. The freezer has alarms for chamber temperature, power failure, and door open (time).
- Page 56 Helmer Scientific i.Series and Horizon Series Freezer - Undercounter 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 power the magnetic Access Control lock.
- Page 57 Helmer Scientific i.Series and Horizon Series Freezer - Undercounter Service and Maintenance Manual ® ™ Service 12.1 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 Notes •...
- Page 58 Helmer Scientific i.Series and Horizon Series Freezer - Undercounter Service and Maintenance Manual ® ™ 3. Loosen the four screws attaching the drain tube cover to the rear of the unit. Slide the cover up to disengage from the keyhole openings and remove.
- Page 59 Helmer Scientific i.Series and Horizon Series Freezer - Undercounter Service and Maintenance Manual ® ™ Troubleshooting CAUTION Review all safety instructions prior to troubleshooting. Refer to Section 1.1 (Safety). 13.1 General Operation Problems Problem Possible Cause Action A drawer or basket does not Drawer or basket is Confirm both slides for the drawer or basket are mounted at the same height.
- Page 60 Helmer Scientific i.Series and Horizon Series Freezer - Undercounter Service and Maintenance Manual ® ™ Problem Possible Cause Action The chamber temperature does not stabilize at the Circulation in the chamber Check if there are any items that may obstruct air flow and remove them if freezer setpoint.
- Page 61 Helmer Scientific i.Series and Horizon Series Freezer - Undercounter Service and Maintenance Manual ® ™ Problem Possible Cause Action The freezer is connected to Outlet connection is faulty. Verify power at the outlet. Repair the original outlet or connect to a different outlet power, but the AC Power if necessary.
- Page 62 Helmer Scientific i.Series and Horizon Series Freezer - Undercounter Service and Maintenance Manual ® ™ Problem Possible Cause Action There is excessive moisture Humid air is entering the Confirm the freezer is level, and the door is aligned, closing tightly, and sealing on the doors.
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Page 63: Horizon Parts
Helmer Scientific i.Series and Horizon Series Freezer - Undercounter Service and Maintenance Manual ® ™ Horizon 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 64 Helmer Scientific i.Series and Horizon Series Freezer - Undercounter Service and Maintenance Manual ® ™ Letter Description Model Part Number Volts Letter Description Model Part Number Volts Probe bottle and propylene glycol kit 400922-2 Unit cooler assembly 800131-2 Primary monitor probe...
- Page 65 Helmer Scientific i.Series and Horizon Series Freezer - Undercounter Service and Maintenance Manual ® ™ CAUTION Disconnect the freezer from AC power before accessing the electrical tray. Note The control board is sensitive to static electricity and can be damaged by electrostatic discharge. Use proper ESD precautions when handling the board.
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Page 66: Schematics
Helmer Scientific i.Series and Horizon Series Freezer - Undercounter Service and Maintenance Manual ® ™ Schematics 15.1 HPF and HLF Models; 104 and 105 Configuration (without Access Control) MONITOR 360142-D/E... -
Page 67: Hpf And Hlf Models; 104 And 105 Configuration (With Access Control)
Helmer Scientific i.Series and Horizon Series Freezer - Undercounter Service and Maintenance Manual ® ™ 15.2 HPF and HLF Models; 104 and 105 Configuration (with Access Control) MONITOR 360142-D/E... -
Page 68: Appendix A: Compliance
Helmer Scientific i.Series and Horizon Series Freezer - Undercounter 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. 0086 Sound level is less than 70 dB(A). -
Page 69: Appendix B: Warranty
Helmer will not be liable for installation, refrigerant, or miscellaneous charges required to install the compressor beyond the first year of the warranty period. ♦ i.Series model compressor warranty period is seven (5) years. ♦ Horizon Series model compressor warranty period is five (3) years. - Page 70 Helmer Scientific 14400 Bergen Boulevard, Noblesville, IN 46060 USA 360142-D/E Copyright © 2016 Helmer, Inc.
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