Helmer i.Series Service And Maintenance Manual
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Helmer i.Series Service And Maintenance Manual

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See also: Service Manual , Operating Manual
Laboratory
i.Series
iLR105-GX
Horizon Series
HLR105-GX
Pharmacy
i.Series
iPR105-GX
Horizon Series
HPR105-GX
Blood Bank
i.Series
iBR105-GX
Horizon Series
HBR105-GX
360127-D/E
Refrigerator Service and Maintenance Manual
®
i.Series
and Horizon Series™ - Undercounter
360398/A

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  • Page 1 Refrigerator Service and Maintenance Manual ® i.Series and Horizon Series™ - Undercounter Laboratory i.Series iLR105-GX Horizon Series HLR105-GX Pharmacy i.Series iPR105-GX Horizon Series HPR105-GX Blood Bank i.Series iBR105-GX Horizon Series HBR105-GX 360127-D/E 360398/A...
  • 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 Refrigerator - Undercounter Service and Maintenance Manual ® ™ Contents About This Manual ................. . . 4 Intended Audience .
  • Page 4 Helmer Scientific i.Series and Horizon Series Refrigerator - Undercounter Service and Maintenance Manual ® ™ i.Series Parts..................38 Schematics .

  • 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 refrigerator. For example, “iLR105-GX” refers to an i.Series Laboratory Refrigerator with 1 door and a capacity of 5 cu ft.
  • Page 6 Helmer Scientific i.Series and Horizon Series Refrigerator - Undercounter Service and Maintenance Manual ® ™ Symbols found on the unit The following symbols may be found on the refrigerator or refrigerator packaging: Caution: Risk of damage to equipment or Earth / ground terminal...

  • Page 7: Avoiding Injury

    Helmer Scientific i.Series and Horizon Series Refrigerator - Undercounter Service and Maintenance Manual ® ™ Avoiding Injury WARNINGS • Do not use mechanical devices or other means to accelerate the defrosting process, other than those recommended by the manufacturer. • Do not damage the refrigerant circuit.

  • Page 8: Product Labels

    Helmer Scientific i.Series and Horizon Series Refrigerator - Undercounter Service and Maintenance Manual ® ™ Product Labels This information appears on the product specification label, located on the rear of the refrigerator toward the bottom left corner. The model also appears on a label located in the chamber on the upper side of the right wall. Note Information contained in this specification label varies depending on the model and power requirements. Label...

  • Page 9: I.series Information

    • Do not open multiple loaded drawers at the same time. • Do not lean on or push down on an open door or extended drawers. Contact Helmer or your distributor for more information regarding the stacking kit and methods to secure both units to the wall and/or floor.

  • Page 10: Connect Back-Up Power

    Helmer Scientific i.Series and Horizon Series Refrigerator - Undercounter Service and Maintenance Manual ® ™ 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.
  • Page 11 Helmer Scientific i.Series and Horizon Series Refrigerator - Undercounter Service and Maintenance Manual ® ™ Probe bottle with probe. Solid ballast with probe. Rear access port. Fill Probe Bottle (if included) 1. Remove probe(s) from bottle and remove bottle from bracket.
  • Page 12 • For accurate temperature reading, ensure the current time is aligned with the time line groove when chart knob is fully tightened. • Contact Helmer Customer Service or your distributor to reorder chart paper; part number 220366 (52 sheets). Chart recorder stylus and time line groove 1.

  • Page 13: Configure Storage

    Helmer Scientific i.Series and Horizon Series Refrigerator - Undercounter Service and Maintenance Manual ® ™ 2.6 Configure Storage CAUTION • Before moving drawers or shelves, ensure they are completely empty for safe lifting. • Maximum drawer or shelf load is 100 lbs (46 kg).

  • Page 14: Optional Adapter Kits For Medication Dispensing Locks

    4. Insert brackets into standard at appropriate height. 5. Tap brackets downward to engage standards. 6. Using a screwdriver, install bracket retainers. Optional Adapter Kits for Medication Dispensing Locks Contact Helmer Technical Service or your distributor for service documentation pertaining to medication dispensing locks. 360398/A...

  • Page 15: Reverse Door Hinges And Handle

    • Door hinge and handle cannot be reversed on units equipped with Access Control. • Unit must be on floor 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. Press and release door to open the access panel. Switch the AC power switch to OFF and switch the back-up battery switch to OFF.
  • Page 16 Helmer Scientific i.Series and Horizon Series Refrigerator - Undercounter Service and Maintenance Manual ® ™ 7. With the door shut, remove the cover plate from both hinges. 8. Using a 1/16” Allen wrench, loosen the set screw inside the hex nut on top of the each hinge spring.
  • Page 17 Helmer Scientific i.Series and Horizon Series Refrigerator - Undercounter Service and Maintenance Manual ® ™ 4. Remove the remaining screws from the door assembly. 5. Using a punch or J-hook tool along the bottom edge, lift the inner door frame out of the outer door frame.
  • Page 18 Helmer Scientific i.Series and Horizon Series Refrigerator - Undercounter Service and Maintenance Manual ® ™ Reassemble Door / Reverse Hinges 1. Reinstall the inner door panel and secure with screws in the holes opposite the original configuration. 2. Reinstall the door hinge plates onto the opposite side of the door frame by aligning holes in the hinge plates with the holes in the door frame and hand-threading the two (2) long screws in each hinge (leave screws slightly loose).

  • Page 19: Controls

    Refrigerator - 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.C User Guide for complete information regarding the i.C...

  • Page 20: Settings

    • Default values for general settings, alarm settings, and display settings are available in the i.C³ User Guide. • 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. The method for accessing the Settings mode for each setting varies.
  • Page 21 The compressor will run as a percent of maximum if both the monitor and control probe fail. NOTICE Upper Rail, Lower Rail, Delay on Start-up and Speed During Probe Error are factory-preset and should not be changed unless directed by Helmer Technical Service. 360398/A...
  • Page 22 Helmer Scientific i.Series and Horizon Series Refrigerator - Undercounter 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 23 • The database is archived and a new database is automatically created • Unit will continue to run with previously saved settings Inverter Communication Failure • Triggered if there is a problem with the refrigeration system Contact Helmer Technical Service for more information 360398/A...

  • Page 24: Sensor Calibration

    Helmer Scientific i.Series and Horizon Series Refrigerator - Undercounter 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 select Sensor Calibration.
  • Page 25 Helmer Scientific i.Series and Horizon Series Refrigerator - Undercounter Service and Maintenance Manual ® ™ Primary Monitor Probe Verify primary monitor probe is reading chamber temperature correctly by comparing the probe reading to the temperature measured by a calibrated reference thermometer. If the probe is not reading correctly, change the value displayed on the monitor.
  • Page 26 4. Touch minus (-) or plus (+) on the Control Probe Offset spin box. ♦ 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 setting is not typically necessary and should not be performed unless directed by Helmer Technical Service. 360398/A...
  • Page 27 Helmer Scientific i.Series and Horizon Series Refrigerator - Undercounter 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 28: 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 9. i.Series Preventive Maintenance Schedule Frequency Task...

  • Page 29: Alarm Tests

    Helmer Scientific i.Series and Horizon Series Refrigerator - Undercounter Service and Maintenance Manual ® ™ Alarm Tests Test alarms to ensure they are working correctly. The refrigerator has alarms for chamber temperature, compressor temperature, power failure, probe failure, and door open (time).
  • Page 30 Helmer Scientific i.Series and Horizon Series Refrigerator - Undercounter Service and Maintenance Manual ® ™ Manual Chamber Alarm Test NOTICE • Perform the low alarm test before the high alarm test to control the temperature more closely and complete the testing more quickly.

  • Page 31: Test And Replace Back-Up Batteries

    Helmer Scientific i.Series and Horizon Series Refrigerator - 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 32: Check Probe Bottle

    Helmer Scientific i.Series and Horizon Series Refrigerator - Undercounter Service and Maintenance Manual ® ™ Check Probe Bottle Remove the probe bottle from the bracket and inspect for cracks. Replace the bottle if necessary. Ensure the probe bottle has approximately 4 oz. (120 mL) of product simulation solution (10:1 ratio of water to glycerin). The glycerin is used to create a solution which simulates the product stored in the refrigerator.

  • Page 33: Display Board Battery

    Helmer Scientific i.Series and Horizon Series Refrigerator - Undercounter Service and Maintenance Manual ® ™ Display Board Battery CAUTION The display board is sensitive to static electricity and can be damaged by electrostatic discharge. Use proper ESD precautions when handling the display board.
  • Page 34 Helmer Scientific i.Series and Horizon Series Refrigerator - Undercounter Service and Maintenance Manual ® ™ Probe Bottles (if installed) Clean and Refill Probe Bottles 1. Remove all probes from bottle. 2. Remove bottle from bracket and empty any remaining solution 3. Clean bottle with a 1:9 ratio of bleach to water solution or a company approved cleaner/disinfectant.

  • Page 35: Service

    Helmer Scientific i.Series and Horizon Series Refrigerator - Undercounter Service and Maintenance Manual ® ™ Service Refrigerant DANGER Risk of fire or explosion. Flammable refrigerant used. To be repaired only by trained service personnel. DO NOT puncture refrigerant tubing. CAUTION • Review all safety instructions prior to recharging refrigerant. • Maintenance should only be performed by trained refrigeration technicians familiar with hydrocarbon refrigerants.
  • Page 36 Helmer Scientific i.Series and Horizon Series Refrigerator - Undercounter Service and Maintenance Manual ® ™ Install Unit Cooler Cover 1. Verify unit cooler wiring is connected and routed correctly. 2. Lift unit cooler cover into place. Front edge of the cover should be behind the unit cooler case.

  • Page 37: Troubleshooting

    Helmer Scientific i.Series and Horizon Series Refrigerator - Undercounter Service and Maintenance Manual ® ™ Troubleshooting CAUTION Review all safety instructions prior to troubleshooting. Refer to Section 1. Access System Problems Problem Possible Cause Action Door does not lock Lock mechanism is Inspect lock/latch, Replace if necessary.

  • Page 38: Alarm Activation Problems

    Helmer Scientific i.Series and Horizon Series Refrigerator - Undercounter Service and Maintenance Manual ® ™ Alarm Activation Problems Problem Possible Cause Action A Battery alarm is active. The battery key switch is in Turn the key to on “-” position.

  • Page 39: I.series Parts

    Caster - swivel with brake 220380 Battery switch 120202 Casters 400819-2 Circuit breakers 120279 (includes 4 casters and hardware) (4 A; quantity 2) Temperature chart recorder 500612-1 Monitoring system back-up battery 121018 (Contact Helmer Technical Service regarding Hinge assembly 220708 230V models) 360398/A...
  • Page 40 Helmer Scientific i.Series and Horizon Series Refrigerator - Undercounter Service and Maintenance Manual ® ™ CAUTION Disconnect unit from AC power when replacing LED lamps. Letter Description Part Number Letter Description Part Number Light assembly 800023-1 Full shelf 401956-1-069 (circuit board and cover)
  • Page 41 Helmer Scientific i.Series and Horizon Series Refrigerator - Undercounter Service and Maintenance Manual ® ™ DANGER Risk of fire or explosion. Flammable refrigerant used. To be repaired only by trained service personnel. DO NOT puncture refrigerant tubing. CAUTION Disconnect unit from AC power before accessing the electrical tray. Note Circuit boards are sensitive to static electricity and can be damaged by electrostatic discharge. User proper ESD precautions when handling board.

  • Page 42: Schematics

    Helmer Scientific i.Series and Horizon Series Refrigerator - Undercounter Service and Maintenance Manual ® ™ Schematics iBR, iPR and iLR Models 360398/A...
  • Page 43 Helmer Scientific i.Series and Horizon Series Refrigerator - Undercounter Service and Maintenance Manual ® ™ 360398/A...

  • Page 44: Horizon Series Information

    • Do not open multiple loaded drawers at the same time. • Do not lean on or push down on an open door or extended drawers. Contact Helmer or your distributor for more information regarding the stacking kit and methods to secure both units to the wall and/or floor.

  • Page 45: Connect Back-Up Power

    Helmer Scientific i.Series and Horizon Series Refrigerator - Undercounter Service and Maintenance Manual ® ™ 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.
  • Page 46 Helmer Scientific i.Series and Horizon Series Refrigerator - Undercounter Service and Maintenance Manual ® ™ Probe bottle with probe. Solid ballast with probe. Rear access port. Fill Probe Bottle (if included) 1. Remove probe(s) from bottle and remove bottle from bracket.
  • Page 47 • 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 48: Configure Storage

    Helmer Scientific i.Series and Horizon Series Refrigerator - Undercounter Service and Maintenance Manual ® ™ 9.6 Configure Storage CAUTION • Before moving drawers or shelves, ensure they are completely empty for safe lifting. • Maximum drawer or shelf load is 100 lbs (46 kg).

  • Page 49: Optional Adapter Kits For Medication Dispensing Locks

    • Door hinge and handle cannot be reversed on units equipped with Access Control. • Unit must be on floor 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. Press and release door to open the access panel. Switch the AC power switch to OFF and switch the back-up battery switch to OFF.
  • Page 50 Helmer Scientific i.Series and Horizon Series Refrigerator - Undercounter Service and Maintenance Manual ® ™ 7. With the door shut, remove the cover plate from both hinges. 8. Using a 1/16” Allen wrench, loosen the set screw inside the hex nut on top of the each hinge spring.
  • Page 51 Helmer Scientific i.Series and Horizon Series Refrigerator - Undercounter Service and Maintenance Manual ® ™ 5. Remove the remaining screws from the door assembly. 6. Using a punch or J-hook tool along the bottom edge, lift the inner door frame out of the outer door frame.
  • Page 52 Helmer Scientific i.Series and Horizon Series Refrigerator - Undercounter Service and Maintenance Manual ® ™ Reassemble Door / Reverse Hinges 1. Reinstall the inner door panel and secure with screws in the holes opposite the original configuration. 2. Reinstall the door hinge plates onto the opposite side of the door frame by aligning holes in the hinge plates with the holes in the door frame and hand-threading the two (2) long screws in each hinge (leave screws slightly loose).

  • Page 53: Controls

    Helmer Scientific i.Series and Horizon Series Refrigerator - 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...
  • Page 54 Helmer Scientific i.Series and Horizon Series Refrigerator - Undercounter Service and Maintenance Manual ® ™ Display Minimum and Maximum Monitor Temperature Recordings The minimum and maximum recording feature allows the user to view a minimum temperature occurrence and a maximum temperature occurrence within a given period of time.

  • Page 55: Alarm Reference

    Helmer Scientific i.Series and Horizon Series Refrigerator - Undercounter 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 56: Settings

    Helmer Scientific i.Series and Horizon Series Refrigerator - Undercounter Service and Maintenance Manual ® ™ 10.3 Settings Temperature Setpoint The default setpoint for the refrigerator is 4.0 °C for HBR and HLR models, and 5.0 °C for HPR models. This can be changed if your organization requires a chamber temperature other than the default setting.
  • Page 57 Helmer Scientific i.Series and Horizon Series Refrigerator - 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 58 Helmer Scientific i.Series and Horizon Series Refrigerator - Undercounter Service and Maintenance Manual ® ™ Enter the New Offset Value: 1. Press and hold the Up and Down Arrows simultaneously for 3 seconds to enter program mode. 2. The display will show .C or .F to indicate Celsius or Fahrenheit.
  • Page 59 Helmer Scientific i.Series and Horizon Series Refrigerator - Undercounter Service and Maintenance Manual ® ™ Upper Rail The Upper Rail Limit is the maximum control temperature at which the compressor will turn on. Lower Rail The Lower Rail Limit is the minimum control temperature at which the compressor will turn off. NOTICE The Upper Rail and Lower Rail values are factory-preset and should not be changed unless directed by Helmer Technical Service.

  • Page 60: Maintenance

    Helmer Scientific i.Series and Horizon Series Refrigerator - 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. • Maintenance should only be performed by trained refrigeration technicians.

  • Page 61: Alarm Tests

    Helmer Scientific i.Series and Horizon Series Refrigerator - Undercounter Service and Maintenance Manual ® ™ 11.1 Alarm Tests Alarms should be tested to ensure they are working correctly. The refrigerator has alarms for chamber temperature, power failure, and door open (time).

  • Page 62: Test And Replace Back-Up Batteries

    Helmer Scientific i.Series and Horizon Series Refrigerator - Undercounter 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 63: Check Probe Bottle (If Installed)

    Helmer Scientific i.Series and Horizon Series Refrigerator - Undercounter Service and Maintenance Manual ® ™ 11.3 Check Probe Bottle (if installed) Remove the probe bottle from the bracket and inspect for cracks. Replace the bottle if necessary. Ensure the probe bottle has approximately 4 oz. (120 mL) of product simulation solution (10:1 ratio of water to glycerin). The glycerin is mixed with water to create a solution which simulates the product stored in the refrigerator.
  • Page 64 Helmer Scientific i.Series and Horizon Series Refrigerator - Undercounter 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 65: Service

    Helmer Scientific i.Series and Horizon Series Refrigerator - Undercounter Service and Maintenance Manual ® ™ Service 12.1 Refrigerant DANGER Risk of fire or explosion. Flammable refrigerant used. To be repaired only by trained service personnel. DO NOT puncture refrigerant tubing. CAUTION • Review all safety instructions prior to recharging refrigerant. • Maintenance should only be performed by trained refrigeration technicians familiar with hydrocarbon refrigerants.

  • Page 66: Troubleshooting

    Helmer Scientific i.Series and Horizon Series Refrigerator - Undercounter Service and Maintenance Manual ® ™ 7. Touch Mute to disable the high temperature alarm while refrigerator reaches operating temperature. Troubleshooting CAUTION Review all safety instructions prior to troubleshooting. Refer to Section 1.1.

  • Page 67: Alarm Activation Problems

    Helmer Scientific i.Series and Horizon Series Refrigerator - Undercounter Service and Maintenance Manual ® ™ 13.3 Alarm Activation Problems Problem Possible Cause Action Probe failure alarm is active Faulty probe or wiring Check corresponding probe connection. (PROB) connection. Test resistance of probe (86Ω to 110Ω). Replace probe if necessary. Power failure alarm is active.

  • Page 68: Horizon Series Parts

    Part Number Volts Letter Description Part Number Temperature chart recorder 500612-1 Caster - swivel with brake 220380 (Contact Helmer Technical Service regarding Casters 400819-2 (includes 4 casters and hardware) 230V models) Not shown Chart paper 220366 Chamber light switch 120202...
  • Page 69 Helmer Scientific i.Series and Horizon Series Refrigerator - Undercounter Service and Maintenance Manual ® ™ CAUTION Disconnect unit from AC power when removing and replacing LED lamps. Note The chamber light is optional on Horizon Series refrigerators. Letter Description Part Number...
  • Page 70 Helmer Scientific i.Series and Horizon Series Refrigerator - Undercounter Service and Maintenance Manual ® ™ DANGER Risk of fire or explosion. Flammable refrigerant used. To be repaired only by trained service personnel. DO NOT puncture refrigerant tubing. CAUTION • Disconnect unit from AC power before opening the electrical box. Note Circuit boards are sensitive to static electricity and can be damaged by electrostatic discharge. Use proper ESD precautions when handling the board.

  • Page 71: Schematics

    Helmer Scientific i.Series and Horizon Series Refrigerator - Undercounter Service and Maintenance Manual ® ™ Schematics 15.1 HBR, HLR and HPR Models 360398/A...

  • Page 72: Hbr, Hlr And Hpr Models (Without Access Control)

    Helmer Scientific i.Series and Horizon Series Refrigerator - Undercounter Service and Maintenance Manual ® ™ 15.2 HBR, HLR and HPR Models (without Access Control) 360398/A...

  • Page 73: Hbr, Hlr And Hpr Models (With Access Control)

    Helmer Scientific i.Series and Horizon Series Refrigerator - Undercounter Service and Maintenance Manual ® ™ 15.3 HBR, HLR and HPR Models (with Access Control) 360398/A...

  • Page 74: Appendix A: Compliance

    Helmer Scientific i.Series and Horizon Series Refrigerator - Undercounter Service and Maintenance Manual ® ™ Appendix A: Compliance Safety Compliance This device complies with the requirements of directive 93/42/EEC concerning Medical Devices, as amended by 2007/47/EC. 0086 This product is certified to applicable UL and CSA standards by a NRTL. This device complies with FCC Radiated and Conducted Emissions Approval to CFR47, Part 15; Class A levels Environmental Compliance This device complies with the 2011/65/EU Directive for the Restriction of Hazardous Substances (RoHS).

  • Page 75: Appendix B: Warranty

    ♦ i.Series model compressor warranty period is seven (7) years. ♦ Horizon Series model compressor warranty period is five (5) years. 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. Inspection of defective parts by Helmer will be final in determining warranty status.
  • Page 76 Helmer Scientific 14400 Bergen Boulevard, Noblesville, IN 46060 USA 360398/A Copyright © 2019 Helmer, Inc.

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