Helmer Horizon Series Service And Maintenance Manual
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Helmer Horizon Series Service And Maintenance Manual

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See also: Service Manual , Operating Manual
Laboratory
i.Series
iLR111, iLR120, iLR125, iLR245,
iLR256
Horizon Series
HLR111, HLR120, HLR125, HLR245,
HLR256
Pharmacy
i.Series
iPR111, iPR120, iPR125, iPR245,
iPR256
Horizon Series
HPR111, HPR120, HPR125, HPR245,
HPR256
Blood Bank
i.Series
iB111, iB120, iB125, iB245, iB256
Horizon Series
HB111, HB120, HB125, HB245, HB256
360127-D/E
Refrigerator Service and Maintenance Manual
®
i.Series
and Horizon Series™ - Upright
360373/B

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Summary of Contents for Helmer Horizon Series

  • Page 1 Refrigerator Service and Maintenance Manual ® i.Series and Horizon Series™ - Upright Laboratory i.Series iLR111, iLR120, iLR125, iLR245, iLR256 Horizon Series HLR111, HLR120, HLR125, HLR245, HLR256 Pharmacy i.Series iPR111, iPR120, iPR125, iPR245, iPR256 Horizon Series HPR111, HPR120, HPR125, HPR245, HPR256 Blood Bank i.Series...
  • Page 2 , 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 Scientific and Helmer.

  • Page 3: Table Of Contents

    Helmer Scientific i.Series and Horizon Series Refrigerator - Upright Service and Maintenance Manual ® ™ Contents About This Manual ................. . . 4 Intended Use .
  • Page 4 Horizon Series Information ........

  • Page 5: About This Manual

    Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense. Helmer refrigerators are intended for the storage of blood products and other medical and scientific products. Safety Symbols and Precautions...
  • Page 6 ♦ The refrigerator is not considered to be a storage cabinet for flammable or hazardous materials. CAUTION Decontaminate parts prior to sending for service or repair. Contact Helmer or your distributor for decontamination instructions and a Return Authorization Number. 360373/B...

  • Page 7: Model And Input Power

    Helmer Scientific i.Series and Horizon Series Refrigerator - Upright Service and Maintenance Manual ® ™ Model and Input Power Note Service information varies depending on the model and power requirements. Table 1. Model and Input Power Current Model Voltage Frequency...

  • Page 8: I.series Information

    2. Ensure refrigerator is level. Notes • Helmer recommends the use of leveling feet. • Use a wrench to raise or lower leveling feet. When the refrigerator is level, the bottom of the unit cooler will slope downward from front to back and be parallel to the floor.

  • Page 9: Prepare For Monitoring

    Helmer Scientific i.Series and Horizon Series Refrigerator - Upright Service and Maintenance Manual ® ™ Prepare for Monitoring The back-up battery switch is switched off for shipping. Switch the back-up battery switch ON to provide the monitoring system and optional Access Control system with back-up power in the event of AC power failure.
  • Page 10 • 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.

  • Page 11: Configure Storage

    Helmer Scientific i.Series and Horizon Series Refrigerator - 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 12: Optional Adapter Kits For Medication Dispensing Locks

    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. Optional Adapter Kits for Medication Dispensing Locks Contact Helmer Technical Service or your distributor for service documentation pertaining to medication dispensing locks. 360373/B...

  • Page 13: Controls

    Helmer Scientific i.Series and Horizon Series Refrigerator - 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 14: Alarm Reference

    • Changing temperature settings affects operation of the refrigerator. 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, first enter the Settings screen, then select the setting.
  • Page 15 The duty cycle is the percentage of time the compressor will run in the event of a temperature control 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. 360373/B...
  • Page 16 Helmer Scientific i.Series and Horizon Series Refrigerator - Upright Service and Maintenance Manual ® ™ User Configurable 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.
  • Page 17 Helmer Scientific i.Series and Horizon Series Refrigerator - Upright 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 5. Non-Configurable Alarm Alarm Description Rechargeable battery voltage is low...

  • Page 18: Sensor Calibration

    • After one hour of no interaction, the Home screen or Temperature Graph screensaver (if enabled) is displayed. • The Compressor Probe offset is factory-preset and should not be changed unless directed by Helmer Technical Service. Primary and Secondary Monitor Probes Verify primary and secondary monitor probes are reading chamber temperature correctly by comparing probe readings to the temperature measured by a calibrated reference thermometer.
  • Page 19 Helmer Scientific i.Series and Horizon Series Refrigerator - Upright Service and Maintenance Manual ® ™ Calibrate Primary Monitor Probe: 1. Remove primary monitor probe from the upper probe bottle. 2. Unscrew the cap from the bottle. 3. Attach a calibrated independent reference thermometer traceable per national standards to the primary monitor probe, and place them in the bottle.
  • Page 20 ♦ Raise the offset value to lower chamber temperature; lower the offset value to raise chamber temperature. 5. Touch Home to return to home screen. Compressor Probe The compressor temperature probe has been factory-calibrated. Changing the calibration settings is not typically necessary and should not be performed unless directed by Helmer Technical Service. 360373/B...
  • Page 21 Helmer Scientific i.Series and Horizon Series Refrigerator - Upright Service and Maintenance Manual ® ™ Factory Default Settings Settings listed below may be simultaneously returned to factory default values. Note The factory default settings may not be the same as the settings that were factory-calibrated before the refrigerator was shipped.
  • Page 22 Helmer Scientific i.Series and Horizon Series Refrigerator - Upright Service and Maintenance Manual ® ™ Additional Factory Default Settings for Models with Low Humidity Option Table 7. Low Humidity Unit Default Settings Setting Restored Value Restored Value (120, 125, 245, and 256 models)

  • Page 23: Maintenance

    Helmer Scientific i.Series and Horizon Series Refrigerator - Upright Service and Maintenance Manual ® ™ Maintenance Maintenance tasks should be completed according to the schedule below. Refer to the service manual and the i.C³ User Guide for more detail on completing the various tasks.

  • Page 24: Alarm Tests

    Helmer Scientific i.Series and Horizon Series Refrigerator - Upright Service and Maintenance Manual ® ™ Alarm Tests > Test alarms to ensure they are working correctly. The refrigerator has alarms for chamber temperature, compressor temperature, door open (time), power failure, low battery, and power failure. To initiate alarm tests, touch i.C³ APPS, Temperature Alarm Test.

  • Page 25: Upgrade System Firmware

    3. Close door. Alarm will clear, and audible alarm will cease. 4. Change the Door Open (Time) setting to the original setting. Upgrade System Firmware Helmer may occasionally issue updates for the i.C³ firmware. Follow upgrade instructions included with the firmware update. 360373/B...

  • Page 26: Test And Replace Back-Up Batteries

    Helmer Scientific i.Series and Horizon Series Refrigerator - Upright Service and Maintenance Manual ® ™ Test and Replace Back-up Batteries Notes • The i.C Monitoring System and the optional Access Control use the same back-up battery. • Use a battery which meets manufacturer’s specifications.
  • Page 27 Helmer Scientific i.Series and Horizon Series Refrigerator - Upright Service and Maintenance Manual ® ™ Condenser Grill CAUTION Disconnect refrigerator from AC power when cleaning. If the refrigerator is located in an environment where it is exposed to excessive lint or dust, the condenser grill may require cleaning more frequently than stated in preventive maintenance schedule.

  • Page 28: Service

    • If a refrigerant leak is suspected, Helmer recommends finding and fixing the leak prior to recharging the unit. Full initial refrigerant charge varies by model and power requirements, which can be found on the product specification label and in the table below.

  • Page 29: Remove / Replace Unit Cooler Cover

    Helmer Scientific i.Series and Horizon Series Refrigerator - Upright Service and Maintenance Manual ® ™ Remove / Replace Unit Cooler Cover The unit cooler cover must be removed when servicing the control probe, fan motor(s) or coil. NOTICE If unit cooler cover is not removed as detailed in this procedure the drain port may be damaged. Improper drainage may result in excessive icing and refrigerator’s inability to maintain temperature.

  • Page 30: Troubleshooting

    Helmer Scientific i.Series and Horizon Series Refrigerator - 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 Drawer slide is faulty. Confirm the slide is operating correctly. Replace if necessary.

  • Page 31: Alarm Activation Problems

    Helmer Scientific i.Series and Horizon Series Refrigerator - Upright Service and Maintenance Manual ® ™ Problem Possible Cause Action The chamber temperature Check product simulation solution level in bottles. Refill bottles if necessary. Probe bottles are empty. does not stabilize at the Display temperature is not Calibrate primary monitor probe.
  • Page 32 Condenser alarm setpoint is active. too low. Condenser fins are dirty. Clean as necessary, or order new ones from Helmer or your distributor. Compressor is overheating due Check the condenser grill and clean if necessary. to a lack of air flow.

  • Page 33: Testing Problems

    Helmer Scientific i.Series and Horizon Series Refrigerator - Upright Service and Maintenance Manual ® ™ Testing Problems Problem Possible Cause Action The automatic temperature Confirm the alarm setpoints are set at the appropriate values High Alarm setpoint is set significantly higher than the tests do not work.

  • Page 34: I.series Parts

    Helmer Scientific i.Series and Horizon Series Refrigerator - Upright Service and Maintenance Manual ® ™ i.Series Parts Notes • Before replacing parts, protect items in refrigerator from extended exposure to adverse temperature. • Allow refrigerator temperature to stabilize at setpoint after replacing parts or after extended door opening.
  • Page 35 Helmer Scientific i.Series and Horizon Series Refrigerator - Upright Service and Maintenance Manual ® ™ CAUTION Disconnect refrigerator from power when replacing LED lamps. F G H I Letter Description Part Number Model Letter Description Part Number Model Door switch Bridge Shelf 18”...
  • Page 36 Helmer Scientific i.Series and Horizon Series Refrigerator - Upright Service and Maintenance Manual ® ™ Letter Description Model Part Number Volts Letter Description Part Number Volts Unit cooler assembly 800825-1 Unit cooler fan motor 800836-1 800825-2 800835-1 120/125 800827-1 Control probe...
  • Page 37 Helmer Scientific i.Series and Horizon Series Refrigerator - Upright Service and Maintenance Manual ® ™ CAUTION • Disconnect the refrigerator from AC power before opening the electrical box. • Do not remove the cover from the condensate evaporator tray. Note The i.C...

  • Page 38: Schematics

    5 6 7 8 9 10 09S039/C THESE DRAWINGS AND SPECIFICATIONS ARE THE SOLE PROPERTY OF HELMER INC. AND SHALL NOT BE REPRODUCED OR USED AS THE BASIS FOR MANUFACTURE OR SALES OF APPARATUS WITHOUT THE APPROVAL OF HELMER INC. 360373/B...
  • Page 39 Double Door/Pass Thru Only L1-2 09S039/C THESE DRAWINGS AND SPECIFICATIONS ARE THE SOLE PROPERTY OF HELMER INC. AND SHALL NOT BE REPRODUCED OR USED AS THE BASIS FOR MANUFACTURE OR SALES OF APPARATUS WITHOUT THE APPROVAL OF HELMER INC. 360373/B...

  • Page 40: Horizon Series Information

    2. Ensure refrigerator is level. Notes • Helmer recommends the use of leveling feet. • Use a wrench to raise or lower leveling feet. When the refrigerator is level, the bottom of the unit cooler will slope downward from front to back and be parallel to the floor.

  • Page 41: Prepare For Monitoring

    Helmer Scientific i.Series and Horizon Series Refrigerator - Upright Service and Maintenance Manual ® ™ Prepare for Monitoring Monitoring system back-up battery is included in the literature box. Install and connect the battery to provide monitoring system with back-up power in the event of AC power failure. If included, switch the Access Control back-up battery ON to provide the optional Access Control system with back-up power in the event of an AC power failure.
  • Page 42 • For accurate temperature reading, ensure the current time is aligned with the time line groove when chart knob is tightened. • Contact Helmer Technical Service to reorder chart paper; part number 220366 (52 sheets) Chart recorder stylus and time line groove 1.

  • Page 43: Configure Storage

    Helmer Scientific i.Series and Horizon Series Refrigerator - 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 44: Optional Adapter Kits For Medication Dispensing Locks

    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. Optional Adapter Kits for Medication Dispensing Locks Contact Helmer Technical Service or your distributor for service documentation pertaining to medication dispensing locks. 360373/B...

  • Page 45: Controls

    Service and Maintenance Manual ® ™ Controls Horizon Series models are equipped with a monitor and control system which allows users to view and change current settings. 10.1 Monitor and Control Interface Table 11. Monitor and Control Indications Label Description...
  • Page 46 Display Minimum and Maximum Monitor Temperature Recordings Notes • This feature is standard on Horizon Series™ models with serial numbers of 2015494 or higher. Some exceptions may exist. For confirmation on your unit, please contact Helmer Technical Service. • Units that do not include the minimum and maximum recording feature will not display .C or .F when entering the program mode.

  • Page 47: Alarm Reference

    Helmer Scientific i.Series and Horizon Series Refrigerator - Upright Service and Maintenance Manual ® ™ 10.2 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.
  • Page 48 Helmer Scientific i.Series and Horizon Series Refrigerator - Upright Service and Maintenance Manual ® ™ Temperature Setpoint The default setpoint for the refrigerator is 4.0 °C. This can be changed if your organization requires a chamber temperature other than 4.0 °C.
  • Page 49 Determine Control Sensor Offset: Note Control Sensor Offset is factory-preset and changing this value is not recommended. Contact Helmer Technical Service for questions regarding the Control Sensor Offset. 1. View and record the Refrigerator Setpoint. (Reference Section 10.3) 2.
  • Page 50 Hysteresis is the allowable temperature control variance on each side of the refrigerator setpoint. Note The Hysteresis value is factory-preset and should not be changed unless directed by Helmer Technical Service. Non-Configurable Alarms The Power Failure and Door Open alarms indicate operational conditions which may require the attention of the operator or a qualified service technician.

  • Page 51: Maintenance

    • Before performing maintenance, protect items in refrigerator from extended exposure to adverse temperature. • Allow refrigerator temperature to stabilize at setpoint after performing service or after extended door opening. Table 14. Horizon Series Preventive Maintenance Schedule Frequency Task...

  • Page 52: Alarm Tests

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

  • Page 53: Test And Replace Back-Up Batteries

    Helmer Scientific i.Series and Horizon Series Refrigerator - Upright Service and Maintenance Manual ® ™ 11.2 Test and Replace Back-up Batteries Check Monitoring System Battery The monitoring system does not indicate the charge level of the battery. Regularly test the battery and replace battery if the test fails or if the battery has been in use for one year.
  • Page 54 Helmer Scientific i.Series and Horizon Series Refrigerator - Upright Service and Maintenance Manual ® ™ Condenser Grill CAUTION Disconnect refrigerator from AC power when cleaning condenser grill. If the refrigerator is located in an environment where it is exposed to excessive lint or dust, the condenser grill may require cleaning more frequently than stated in preventive maintenance schedule.

  • Page 55: Service

    • If a refrigerant leak is suspected, Helmer recommends finding and fixing the leak prior to recharging the unit. Full initial refrigerant charge varies by model and power requirements, which can be found on the product specification label.

  • Page 56: Remove / Replace Unit Cooler Cover

    Helmer Scientific i.Series and Horizon Series Refrigerator - Upright Service and Maintenance Manual ® ™ 12.3 Remove / Replace Unit Cooler Cover The unit cooler cover must be removed when service to the control probe, fan motor(s) or coil is performed.

  • Page 57: Troubleshooting

    Helmer Scientific i.Series and Horizon Series Refrigerator - 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 Drawer slide is faulty.
  • Page 58 Helmer Scientific i.Series and Horizon Series Refrigerator - Upright Service and Maintenance Manual ® ™ Problem Possible Cause Action The chamber temperature Check product simulation solution level in bottles. Refill bottles if necessary. Probe bottles are empty. does not stabilize at the Display temperature is not Calibrate primary monitor probe.

  • Page 59: Alarm Activation Problems

    Helmer Scientific i.Series and Horizon Series Refrigerator - Upright Service and Maintenance Manual ® ™ 13.3 Alarm Activation Problems Problem Possible Cause Action The refrigerator is in an Alarm key switch is OFF. Switch the alarm key switch ON. alarm condition, but the Reset unit by turning both main power and back-up battery power Alarm system is locked.
  • Page 60 Confirm the refrigerator is placed properly. Refer to the refrigerator the refrigerator is too high. operation manual. Water leaks from the bottom Excessive water is found in Contact Helmer Technical Service to correct issues as necessary. the evaporation tray inside of the refrigerator. the refrigerator. 360373/B...

  • Page 61: Horizon Series Parts

    Helmer Scientific i.Series and Horizon Series Refrigerator - Upright Service and Maintenance Manual ® ™ Horizon Series Parts Notes • Before replacing parts, protect items in refrigerator from extended exposure to adverse temperature. • Allow refrigerator temperature to stabilize at setpoint after replacing parts or after extended door opening.
  • Page 62 Helmer Scientific i.Series and Horizon Series Refrigerator - Upright Service and Maintenance Manual ® ™ CAUTION Disconnect refrigerator from power when removing and replacing LED lamps. Letter Description Model Part Number Letter Description Model Part Number Volts Door switch 120380...
  • Page 63 Helmer Scientific i.Series and Horizon Series Refrigerator - Upright Service and Maintenance Manual ® ™ CAUTION • Disconnect the refrigerator from AC power before opening the electrical box. • Do not remove the cover from the condensate evaporator tray. Note Circuit boards are sensitive to static electricity and can be damaged by electrostatic discharge.

  • Page 64: Schematics

    230V~ / 50 Hz 09S028/F 230V~ / 60 Hz THESE DRAWINGS AND SPECIFICATIONS ARE THE SOLE PROPERTY OF HELMER INC. AND SHALL NOT BE REPRODUCED OR USED AS THE BASIS FOR MANUFACTURE OR SALES OF APPARATUS WITHOUT THE APPROVAL OF HELMER INC. 360373/B...

  • Page 65: Hb, Hlr, Hpr Models; 11 Cubic Feet (With Access Control)

    230V~ / 50 Hz 09S028/F 230V~ / 60 Hz THESE DRAWINGS AND SPECIFICATIONS ARE THE SOLE PROPERTY OF HELMER INC. AND SHALL NOT BE REPRODUCED OR USED AS THE BASIS FOR MANUFACTURE OR SALES OF APPARATUS WITHOUT THE APPROVAL OF HELMER INC. 360373/B...

  • Page 66: Hb, Hlr, Hpr Models; 20, 25, 45, 56 Cubic Feet (Without Access Control)

    230V~ / 50 Hz 09S029/G 230V~ / 60 Hz THESE DRAWINGS AND SPECIFICATIONS ARE THE SOLE PROPERTY OF HELMER INC. AND SHALL NOT BE REPRODUCED OR USED AS THE BASIS FOR MANUFACTURE OR SALES OF APPARATUS WITHOUT THE APPROVAL OF HELMER INC. 360373/B...

  • Page 67: Hb, Hlr, Hpr Models; 20, 25, 45, 56 Cubic Feet (With Access Control)

    230V~ / 50 Hz 09S029/G 230V~ / 60 Hz THESE DRAWINGS AND SPECIFICATIONS ARE THE SOLE PROPERTY OF HELMER INC. AND SHALL NOT BE REPRODUCED OR USED AS THE BASIS FOR MANUFACTURE OR SALES OF APPARATUS WITHOUT THE APPROVAL OF HELMER INC. 360373/B...

  • Page 68: Defrost Timer For Hlr, Hpr Models; 11, 20, 25, 45, 56 Cubic Feet

    Contact Helmer Technical Service at techservice@helmerinc.com for details. Unit Cooler THESE DRAWINGS AND SPECIFICATIONS ARE THE SOLE PROPERTY OF HELMER INC. AND SHALL NOT BE REPRODUCED OR USED AS THE BASIS FOR MANUFACTURE OR SALES OF APPARATUS WITHOUT THE APPROVAL OF HELMER INC.

  • Page 69: Appendix A: Compliance

    Helmer Scientific i.Series and Horizon Series Refrigerator - Upright Service and Maintenance Manual ® ™ Appendix A: Compliance Regulatory Compliance 0086 This device complies with the requirements of directive 93/42/EEC concerning Medical Devices, as amended by 2007/47/EC. This device complies with FCC Radiated and Conducted Emissions Approval to CFR47, Part 15; Class A levels Sound level is less than 70 dB(A).

  • Page 70: Appendix B: Warranty

    Parts For a period of two (2) years, Helmer will supply at no charge, including freight, any part that fails due to defects in material or workmanship under normal use, with the exception of expendable items. Expendable items such as glass, filters, light bulbs, and door gaskets are excluded from this warranty coverage.
  • Page 71 Helmer Scientific i.Series and Horizon Series Refrigerator - Upright Service and Maintenance Manual ® ™ Notes 360373/B...
  • Page 72 Helmer Scientific 14400 Bergen Boulevard, Noblesville, IN 46060 USA 360373/B Copyright © 2018 Helmer, Inc.

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