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Undercounter Refrigerator Service Manual

1. 32 8 10 3 Display Language 32 8 10 4 Temperature Units 33 8 11 Event Log 34 8 11 1 Event Details 35 8 12 Upgrade System Firmware 35 8 13 Reset the i Center Monitoring System 35 8 14 View Manufacturer and Product Information 36 9 Temperature Controller Setpoints 36 9 1 Operational Level 1 Parameters and Values OU 37 9
2. 42 11 Troubleshooting 42 11 1 General Operation Problems 42 11 2 Chamber Temperature Problems 43 11 3 Alarm Activation Problems 44 11 4 Testing Problems 47 11 5 Condensation Problems 48 12 Parts 49 12 1 Front 49 12 1 1 Monitoring System
3. 12 6 1 Rel i Product Warranty USA and Canada 12 6 1 1 Rapid Resolution 12 6 1 2 Compressor 12 6 1 3 Parts 12 6 1 4 Labor 12 6 1 5 Additional Warranty Information 12 6 2 Outside of USA and Canada 13 Section II i Series Models 14 7 Product Configuration 14 7 1 Install Bat
4. 28 8 8 8 Chart Paper Alarm 28 8 9 Test Alarms 29 8 9 1 Automatic Chamber Temperature Alarm Test 29 8 9 2 Manual Chamber Alarm Test 30 8 9 3 Power Failure Alarm Test 31 8 9 4 Door Ajar Alarm Test 31 8 9 5 No Battery Alarm Test 31 8 10 Additional System Settings 32 8 10 1 Screen Contrast 32 8 10 2 Date and Time
5. 9 3 3 1 Fill Temperature Probe Bottle 9 3 3 2 Install Additional Probe Through Rear Port 9 3 4 Chart Recorder 9 3 4 1 Chart Recorder Access 10 3 4 2 Install Chart Paper 10 4 Alarm Reference 11 5 Compliance 11 5 1 Regulatory Compliance 11 5 2 WEEE Compliance 11 6 Warranty
6. 76 16 5 3 Door Open Alarm 76 17 Maintenance 77 17 1 Recharge Refrigerant 77 17 2 Test Monitoring System Battery 77 17 3 Replace LED Lamp Strip Optional 78 17 4 Clean the Refrigerator 78 17 4 1 Condenser Grill 78 17 4 2 Exterior 78 17 4 3 Interior 78
7. 24 8 6 Factory Default Settings 25 8 7 Restore Factory Default Settings 26 8 8 Alarm Settings 26 8 8 1 Alarm Volume 26 8 8 2 Alarm Pulse 26 8 8 3 High Chamber Temperature Alarm 27 8 8 4 Low Chamber Temperature Alarm 27 8 8 5 Condenser Temperature Alarm 27 8 8 6 Door Ajar Alarm 28 8 8 7 Power Failure Alarm
8. 40 10 4 Replace the LED Lamp Strip 40 10 5 Clean the Refrigerator 40 10 5 1 Condenser Grill 40 10 5 2 Exterior 40 10 5 3 Interior 40 10 5 4 Door Gaskets 40 10 6 Unit Cooler Cover Removal and Installation 41 10 6 1 Remove the Unit Cooler Cover 41 10 6 2 Install the Unit Cooler Cover 42 10 7 Supplies
9. 17 7 8 2 Reinstall the Door and Hinges 19 7 9 Stacked Undercounter Units 21 8 Temperature Monitor Settings 21 8 1 Home Screen 21 8 1 1 Home Screen Functions 22 8 2 Main Screen 22 8 3 Temperature Graph 23 8 3 1 Enable or Disable the Temperature Graph 23 8 4 Change Configuration Password 24 8 5 Calibrate Chamber Temperature Probe
10. 84 19 Parts 86 19 1 Front 86 19 1 1 Control System Display 86 19 1 2 Control and Monitoring 87 19 1 3 Lower Panel 87 19 2 Rear 88 19 2 1 Electrical Tray 89 19 3 Interior 90 19 3 1 Lighting Optional 91 19 3 2 Unit C
11. 72 16 3 Temperature Alarm Setpoints 72 16 3 1 High Temperature Alarm 73 16 3 2 Low Temperature Alarm 73 16 4 Temperature Calibration Setpoints 73 16 4 1 Monitor Offset 74 16 4 2 Control Sensor Offset 75 16 4 3 Hysteresis 75 16 5 Test Alarms 75 16 5 1 Chamber Temperature Alarm 75 16 5 2 Power Failure Alarm
12. 49 12 1 2 i Center Display Parts 50 12 1 3 Lower Panel 51 12 2 Rear 52 12 2 1 Electrical Tray 53 12 3 Interior 54 12 3 1 Lighting 55 12 3 2 Unit Cooler 55 12 4 Door Hinges 56 12 5 Side Access Panel
13. 6 2 Safety 6 2 1 Safety Definitions 6 2 2 Product Labels 6 2 3 Avoiding Injury 7 3 Configuration 7 3 1 Model and Input Power 7 3 2 Control System 8 3 2 1 i Series Control System 8 3 2 2 Horizon Series Control System 8 3 3 Temperature Probes
14. 19 3 2 Unit Cooler A B C D Left Unit cooler with fan guard Middle Unit cooler fan Right Temperature control probe Label Description Part Number Schematic Label A Unit cooler B Fan guard C Unit cooler fan 115 V 120540 230 V 120560 H D Temperature control probe 400511 2 G 360117 1 E 92 Horizon Series Models 19 4 Door Hinges D A B C E F Hinge hinge spring and pin assembly and door handle with key lock NOTE Spring tension is controlled at the point where the pin is stopped by the side plate C D Label Description Part Number A Hinge covered edge mount 220506 B Hinge uncovered without spring assembly C Hinge uncovered spring and pin assembly D Close up hinge spring and pin assembly E Door handle Magnetic offset latch with key lock 220426 F Door key lock with key close up 360117 1 E 93 Horizon Series Models 19 5 Side Access Panel Undercounter refrigerators feature easy access for servicing removal and replacement of the compressor and condenser The compressor is accessible from the rear and the side Side access panel 360117 1 E 94 Horizon Series Models 20 Schematics 20 1 Horizon Series Schematic END OF MANUAL HELMER SCIENTIFIC 14400 Bergen Boulevard Noblesville IN 46060 USA PH 1 317 773 9073 FAX 1 317 773 9082 www helmerinc com
15. 57 13 Schematics 58 13 1 i Series Schematic 58 14 i Center Screen Reference 59 Section III Horizon Series Models 61 15 Product Configuration 61 15 1 Install Battery for Backup Power 61 15 2 External Monitoring Devices 61 15 2 1 Connect to Remote Alarm Interface 62 15 3 Move Drawers Shelves and Baskets 62 15 4 Move Slides and Brackets 63 1
16. When power is restored the 24 hours of data prior to the power loss are retained in the system memory Stored temperature data is displayed on the graph and the monitoring system resumes data collection and display 1 Confirm the refrigerator is connected to AC power 2 Ensure the monitoring system backup batteries are installed 3 Change Power Failure Timeout setting to 0 minutes a Press the MAIN button b Press the DOWN button to highlight Edit Configuration Press the SELECT button c Enter the password when prompted d Press the DOWN button to highlight Alarm Setpoints Press the SELECT button e Press the DOWN button to highlight Power Failure Timeout f Press the DEC button to change the setting to 0 4 Switch the AC ON OFF switch OFF Power failure alarm will activate immediately 5 Switch the AC ON OFF switch ON Power failure alarm will clear and audible alarm will cease 6 Change the Power Failure Timeout setting to the original setting 8 9 4 Door Ajar Alarm Test 1 Change Door Ajar Timeout setting to 0 minutes a Press the MAIN button b Press the DOWN button to highlight Edit Configuration Press the SELECT button c Enter the password when prompted d Press the DOWN button to highlight Alarm Setpoints Press the SELECT button e Press the DOWN button to highlight Door Ajar Timeout f Press the DEC button to change the setting to 0 g Press the BACK button to return to the Edit Configuration screen or press th
17. 17 4 4 Door Gaskets 78 17 5 Unit Cooler Cover Removal and Installation 79 17 5 1 Remove the Unit Cooler Cover 79 17 5 2 Install the Unit Cooler Cover 79 17 6 Supplies 80 18 Troubleshooting 81 18 1 General Operation Problems 81 18 2 Chamber Temperature Problems 81 18 3 Alarm Activation Problems 82 18 4 Condensation Problems
18. 360117 1 E 85 Horizon Series Models Problem Possible Cause Action Excessive moisture on the doors Humid air is entering the chamber Confirm the refrigerator is level and the door is aligned closing tightly and sealing correctly Relative humidity around refrigerator is too high Confirm refrigerator location meets requirements Water leaks from the bottom of the refrigerator Humid air is entering the chamber Confirm the refrigerator is level and the door is aligned closing tightly and sealing correctly Excessive water is found in the evaporation tray inside the refrigerator Contact a qualified service technician 360117 1 E 86 Horizon Series Models 19 Parts NOTICE 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 19 1 Front 19 1 1 Control System Display A B Top Horizon Series combined controller and monitor Bottom Horizon Series display circuit board Label Description Part Number Schematic Label A Monitor with touchpad display 400838 1 AZ B Control and monitor board kit 400837 1 L NOTICE The display board is sensitive to static electricity and can be damaged by electrostatic discharge Use proper ESD precautions when handling the board 360117 1 E 87 H
19. Set the latch plates and spacer bar aside Strike plate Remove 2 screws Cabinet Door latch plate 4 With the door shut remove the cover plate from both hinges 5 Remove the spring assembly from the lower hinge a Use a J hook tool to engage the left most hole in the spring cap and rotate the spring cap from left to right and hold b Remove the pin from the spring cap c Allow the spring to relax d Use a J hook tool to engage any hole in the spring cap compress spring downward e Remove spring assembly from the lower hinge f Set the spring assembly aside NOTICE A second person should assist by supporting the door while the hinges are removed NOTE The two screws holding the hinge on the door are longer than the three screws holding the hinge on the cabinet The screws must be installed in the same location when moving the hinge to the opposite side of the door 6 Remove the lower hinge a Support the door b Remove five screws attaching the lower hinge to the door and cabinet c Remove the lower hinge d Reverse the hinge manually as if moving the hinge from a fully closed to a fully open position e Set the lower hinge aside f Continue to support the door 7 Remove the upper hinge a Remove five screws attaching the upper hinge to the door and cabinet b Remove the upper hinge c Reverse the hinge manually as if moving the hinge from a fully closed to a fully open position d Set the upper hinge a
20. 2 Control Level 2 Parameters and Values Cn 37 9 3 Security Level 3 Parameters and Values SE 37 9 4 Error Codes 37 9 5 Change the Refrigerator Setpoint 38 9 6 Change the Control Sensor Offset 38 9 7 Change the Hysteresis Value 38 10 Maintenance 39 10 1 Recharge Refrigerant 39 10 2 Test Monitoring System Backup Batteries 39 360117 1 E iv 10 3 Replace Monitoring System Backup Batteries
21. 2 When refrigerator is properly leveled bottom of the unit cooler will be horizontal parallel to the floor 15 6 Optional Adapter Kits for Medication Dispensing Locks Contact Helmer Technical Service or your distributor for service documentation pertaining to medication dispensing locks 360117 1 E 64 Horizon Series Models 15 7 Reverse Door Hinge and Handle NOTICE Before reversing door hinge and handle protect stored items in refrigerator from extended exposure to adverse temperature NOTE Refrigerator must be on the floor or on an elevated work surface with enough space in front of the refrigerator to lay the door face down for disassembly 15 7 1 Remove the Door and Hinges 1 Open the lower front control panel Switch AC ON OFF switch OFF Disconnect the battery Disconnect AC power 2 Remove four screws holding the kick panel on the cabinet Set the kick panel aside Remove Kick panel Remove 3 Remove six screws holding the access panel and cover on the cabinet Lay the panel in front of the cabinet ensuring there is no strain on the power switch wires Remove Remove Access panel Access panel Access panel cover Access panel cover Remove Remove 4 Remove plug from the access panel on the handle side of the refrigerator Remove grommet from the hole on the hinge side of the refrigerator Slide the data cable out of the slot on the kick plate Pull plug out Pull grommet out Slid
22. Test amp Status screen appears 360117 1 E 30 i Series Models 4 Press the DOWN button to select Start High Alarm Auto Test Press the SELECT button The High Alarm Test in Progress message appears When the test is complete the message clears 5 View the Event Log Note the temperature at which the low alarm occurred Compare the temperature to the high alarm setpoint If the values do not match refer to chapter 11 Troubleshooting Cancel the test 1 Press the MAIN button 2 Press the DOWN button to select System Alarm Test amp Status Press the SELECT button The System Alarm Test amp Status screen appears 3 Press the DOWN button to select Cancel High or Low Test Press the ENTER button The test is cancelled 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 8 9 2 Manual Chamber Alarm Test NOTICE Before testing alarms protect items in refrigerator from extended exposure to adverse temperature IMPORTANT Perform the low alarm test before the high alarm test to control the temperature more closely and complete the testing more quickly Obtain 2 8 oz 250 mL glass half full of chilled water 1 glass filled with crushed ice 1 8 oz 250 mL glass half full of warm water NOTICE Temperature probes ar
23. Use a cable tie to relieve strain on alarm wires as necessary 5 Switch AC ON OFF switch ON Reconnect the monitoring system backup battery 6 Press the MUTE button to disable the high temperature alarm while refrigerator reaches operating temperature 15 3 Move Drawers Shelves and Baskets Storage features CAUTION Keep hands away from pinch points when closing the door Before moving drawers ensure they are completely empty for safe lifting Maximum basket drawer or shelf load is 100 lbs 46 kg NOTICE Before moving storage components protect stored items in refrigerator from extended exposure to adverse temperature Remove a drawer or basket 1 Pull drawer or basket out until it stops 2 On the right drawer slide press the release tab down 3 While holding the right side release tab down press the release tab up on the left drawer slide 4 Pull drawer or basket free of the slides Install a drawer or basket 1 Align end guides on drawer or basket with the slides 2 Gently push drawer or basket into chamber until it stops 3 Pull drawer or basket out until it stops check for smooth operation 360117 1 E 63 Horizon Series Models Remove a shelf 1 With one hand lift front edge of the shelf from the front brackets 2 With the other hand reach under the shelf and bump rear edge of the shelf upward to disengage rear brackets Install a shelf 1 Insert shelf into chamber placing it on
24. access panel b Install the grommet in the hole c Install the plug in the access panel on the opposite side d Allow enough slack approximately 3 in the data cable between the door and the cabinet so the door can pivot open and closed without straining the cable 6 Install the access panel and cover 7 Install the kick panel 8 Install the door handle on the opposite side of the door 9 Install the latch plates and spacer bar on the opposite side of the cabinet 10 Install the hinge spring and pin assembly a Close the door b Assemble the hinge spring assembly for the left side of the door Figure A c Orient the bend in the coil toward the front of the refrigerator Figure B d Slide the internal hex cap with washer on to the upper hex bolt in the lower hinge 360117 1 E 70 Horizon Series Models B A Washer Internal hex cap Pin Spring Spring cap Bushing e Use a J hook tool in the spring cap to compress the spring upward Figure C f While compressing the spring slide the spring cap over the lower hex bolt in the lower hinge Figure D D C g Use a J hook tool to engage the right most hole in the spring cap and rotate the spring cap from right to left and hold h Count four holes starting from and including the spring cap hole closest to the end of the coil i Insert the pin in the fourth hole Rotate the spring using a J hook tool then insert pin left hinged door shown 11 Swi
25. b In the chamber push drain hose onto unit cooler drain port 4 Reinstall top drawer basket or shelf if previously removed 5 On the back of the cabinet press putty around the drain hose 6 Switch AC ON OFF switch ON Reinstall the battery in the monitoring system backup battery holder 7 Press the MUTE button to disable the high temperature alarm while refrigerator reaches operating temperature 10 7 Supplies Refrigerant non CFC R 134A Chart paper 220366 52 sheets Glycerin solution 400922 1 LED lamp strip optional 800023 1 Monitoring system backup batteries 6 1 5 V D cell non rechargeable alkaline or equivalent Chart recorder backup battery optional 1 9 V non rechargeable alkaline or equivalent 11 Troubleshooting CAUTION Review all safety instructions prior to troubleshooting Refer to chapter 2 Safety Troubleshooting should only be performed by trained refrigeration technicians 11 1 General Operation Problems Problem Possible Cause Action Drawer or basket does not slide easily Debris in the drawer slides Pull the drawer or basket out and confirm the slides are free of debris Clean if necessary Drawer slides are not lubricated Using a lightweight oil lubricate the bearings in the slides Drawer or basket is misaligned or not level Confirm both slides for the drawer or basket are mounted at the same height Drawer slide is faulty
26. cooler cover B Drain port C Drain hose 10 6 1 Remove the Unit Cooler Cover CAUTION Disconnect the refrigerator from AC power when removing the unit cooler 1 Switch AC ON OFF switch OFF Remove one battery from the monitoring system backup battery holder 2 On the back of the cabinet peel the putty back to expose the drain hose C 3 Remove top drawer basket or shelf from the chamber 4 Remove drain hose from unit cooler drain port B a Pull drain hose downward to separate from unit cooler b Twist drain hose while pulling to assist in removal 5 Push the drain hose C out through rear of chamber 360117 1 E 42 i Series Models 6 Remove the unit cooler cover a Hold unit cooler cover in place to prevent it from dropping b Use the socket wrench to remove four screws securing the unit cooler cover c Carefully lower unit cooler cover to avoid damage to the fan wiring 10 6 2 Install the Unit Cooler Cover 1 Verify unit cooler wiring is connected and routed correctly a Wiring should be routed above copper tube inside the unit cooler b Reconnect wires if they have separated 2 Attach unit cooler cover a Lift unit cooler cover into place b Front edge of the cover should be behind the unit cooler case c Use the socket wrench to install four screws to secure the unit cooler cover 3 Insert the drain hose through hole in the refrigerator a Push drain hose upward toward the unit cooler drain port
27. operating temperature 17 4 Clean the Refrigerator 17 4 1 Condenser Grill In environments where refrigerator is exposed to excessive lint or dust condenser grill may require cleaning more frequently than stated in preventive maintenance schedule Clean the condenser grill using a soft brush and a vacuum cleaner 17 4 2 Exterior Clean glass surfaces with soft cotton cloth and glass cleaner Clean exterior surfaces with soft cotton cloth and non abrasive liquid cleaner 17 4 3 Interior Clean painted surfaces with mild detergent Clean stainless steel surfaces with a general purpose laboratory cleaner suitable for stainless steel 17 4 4 Door Gaskets Clean with soft cloth and mild soap and water solution 17 4 5 Clean and Refill Probe Bottle NOTE A kit that includes a probe bottle and glycerin is available from Helmer Obtain Fresh water bleach solution not provided 1 9 ratio of bleach to water Bleach is 5 solution of commercial sodium hypochlorite NaOCl Equivalent oxidizing cleaner disinfectant approved by your organization may be substituted 4 oz 120 mL of product simulation solution per bottle 10 1 ratio of water to glycerin Clean and refill bottle 1 Remove probe from bottle 2 Remove bottle from bracket 3 Clean bottle with water bleach solution 4 Fill bottle with 4 oz 120 mL of product simulation solution 5 Cap bottle tightly to minimize evaporation 36011
28. same as the settings that were factory calibrated before the refrigerator was shipped Setting Restored Value High Alarm Setpoint 5 5 C Low Alarm Setpoint 1 1 5 C Condenser Alarm Setpoint 50 0 C Door Ajar Timeout 3 minutes Power Failure Timeout 3 minutes Chart Paper Timer 6 5 days 1 This includes laboratory pharmacy iLR models that were originally set at 2 0 C NOTE Unless your organization requires the Low Alarm Setpoint to be at the factory default level of 1 5 C it will be necessary to increase the setpoint to 2 0 C after restoring factory defaults 360117 1 E 26 i Series Models 8 7 Restore Factory Default Settings Restore settings 1 Press the MAIN button 2 Press the DOWN button to highlight Edit Configuration Press the SELECT button 3 Enter the password when prompted 4 Press the DOWN button to highlight Factory Default Settings Press the SELECT button 5 Do one of the following Press the ENTER button Factory default settings are restored Press the BACK button Factory default settings are not restored 8 8 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 8 8 1 Alarm Volume The alarm volume can be changed The Alarm Volume controls vol
29. surface 2 Remove remaining screws from both sides of the door assembly 3 Lift the inner door frame out of the outer door frame and set aside A J hook tool may be used along the bottom edge of the door assembly to lift the inner frame 4 Remove the plug from the handle side of the door Set the plug aside Pull plug out 5 Pull the grommet out of the hole in the door Slide the data cable out of the slot Pull grommet out Slide cable out of slot 6 Re route the data cable a Route the data cable inside the door and out through the slot in the corner opposite from where the cable had previously exited the door b Cable should follow the bottom edge of the door frame as closely as possible c Tape the cable to the door frame d Excess slack in the cable should be outside of the door 360117 1 E 68 Horizon Series Models Left Original cable routing right hinged door Right New cable routing left hinged door 7 Route the data cable out of the door a Slide the data cable through the slot in the door b Insert the door side grommet into the hole in the door 8 Reinstall the inner door frame inside the outer door frame Install screws in the unused holes on the door where hinges were originally installed 15 7 3 Reinstall the Door and Hinges 1 Install the hinges and hinge plates on the door a Hand thread two screws through each hinge and into the door b Leave the screws slightly loose c If a shim w
30. the DOWN button to highlight Low Alarm Setpoint 6 Press the INC or DEC buttons to change the setting 7 Press the BACK button to return to the Edit Configuration screen or press the HOME button to exit The new settings are saved 8 8 5 Condenser Temperature Alarm The Condenser Alarm setpoint specifies the temperature at which the Condenser Temperature Alarm activates If the temperature of the condenser discharge line is greater than or equal to this value the alarm activates Default setpoint is 50 C Setpoint can be changed from 40 C to 80 C NOTICE Condenser Temperature Alarm should not be changed unless directed by Helmer Technical Service Change the setpoint 1 Press the MAIN button 2 Press the DOWN button to highlight Edit Configuration Press the SELECT button 3 Enter the password when prompted 4 Press the DOWN button to highlight Alarm Setpoints Press the SELECT button 5 Press the DOWN button to highlight Cond Alarm Setpoint 360117 1 E 28 i Series Models 6 Press the INC or DEC buttons to change the setting 7 Press the BACK button to return to the Edit Configuration screen or press the HOME button to exit The new settings are saved 8 8 6 Door Ajar Alarm The Door Ajar Timeout specifies longest time the refrigerator door can be open before the alarm activates If the time elapsed since the last door opening is greater than or equal to this value the alarm activates Defa
31. trademarks of Helmer Inc in the United States of America Copyright 2014 Helmer Inc All other trademarks and registered trademarks are the property of their respective owners Helmer Inc doing business as DBA Helmer Scientific and Helmer 2 Safety Includes general safety information for refrigerator operation 2 1 Safety Definitions The following general safety alerts appear with all safety statements within this manual Read and abide by the safety statement that accompanies the safety alert symbol WARNING The safety statement that follows this safety alert symbol indicates a hazardous situation which if not avoided could result in serious injury CAUTION The safety statement that follows this safety alert symbol indicates a hazardous situation which if not avoided could result in minor or moderate injury NOTICE The safety statement that follows this safety alert symbol indicates a situation which if not avoided could result in damage to the product or stored inventory 2 2 Product Labels Caution Risk of damage to equipment or danger to operator Caution Unlock all casters Caution Hot surface Earth ground terminal Caution Shock electrical hazard Protective earth ground terminal 360117 1 E 7 General Information 2 3 Avoiding Injury Review safety instructions before installing using or maintaining the equipment Before moving unit ensure door is closed and casters
32. 5 5 Level the Refrigerator 63 15 6 Optional Adapter Kits for Medication Dispensing Locks 63 15 7 Reverse Door Hinge and Handle 64 15 7 1 Remove the Door and Hinges 64 15 7 2 Reverse the Cable Routing in the Door 66 15 7 3 Reinstall the Door and Hinges 68 15 8 Stacked Undercounter Units 71 360117 1 E v 16 Settings 71 16 1 Monitor and Controller Interface 71 16 2 Refrigerator Setpoint
33. 7 1 E 79 Horizon Series Models 6 Place bottle in bracket 7 Replace probe immersing at least 2 50 mm 17 5 Unit Cooler Cover Removal and Installation 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 Required tools 5 16 socket wrench Tool to push putty away from the drain hose A B C Drain line and hose Label Description A Unit cooler cover B Drain port C Drain hose 17 5 1 Remove the Unit Cooler Cover CAUTION Disconnect refrigerator from AC power when removing the unit cooler cover 1 Switch AC ON OFF switch OFF Disconnect the monitoring system backup battery 2 On the back of the cabinet peel the putty back to expose the drain hose C 3 Remove top drawer basket or shelf from the chamber 4 Remove drain hose from unit cooler drain port B a Pull drain hose downward to separate from unit cooler b Twist drain hose while pulling to assist in removal 5 Push the drain hose C out through rear of chamber 6 Remove the unit cooler cover a Hold unit cooler cover in place to prevent it from dropping b Use the socket wrench to remove four screws securing the unit cooler cover c Carefully lower unit cooler cover to avoid damage to the fan wiring 17 5 2 Install the Unit Cooler Cover 1 Verify unit cooler wiring is c
34. 8 3 High Chamber Temperature Alarm The High Alarm setpoint specifies the temperature at which the High Temperature Alarm activates If the temperature detected by the chamber probe is greater than or equal to this value the alarm activates Default setpoint is 5 5 C Setpoint can be changed from 40 C to 40 C Change the setpoint 1 Press the MAIN button 2 Press the DOWN button to highlight Edit Configuration Press the SELECT button 3 Enter the password when prompted 4 Press the DOWN button to highlight Alarm Setpoints Press the SELECT button 5 Press the DOWN button to highlight High Alarm Setpoint 6 Press the INC or DEC buttons to change the setting 7 Press the BACK button to return to the Edit Configuration screen or press the HOME button to exit The new settings are saved 8 8 4 Low Chamber Temperature Alarm The Low Alarm setpoint specifies the temperature at which the Low Temperature Alarm activates If the temperature detected by the chamber probe is less than or equal to this value the alarm activates Default setpoint is 1 5 C iB models Default setpoint is 2 0 C iLR models Setpoint can be changed from 40 C to 40 C Change the setpoint 1 Press the MAIN button 2 Press the DOWN button to highlight Edit Configuration Press the SELECT button 3 Enter the password when prompted 4 Press the DOWN button to highlight Alarm Setpoints Press the SELECT button 5 Press
35. AMAGES RELATED TO LOST REVENUES OR PROFITS OR LOSS OF PRODUCTS This warranty does not cover damages caused in transit during installation by accident misuse fire flood or acts of God Further this warranty will not be valid if Helmer determines that the failure was caused by a lack of performing recommended equipment maintenance per Helmer manual or by using the product in a manner other than for its intended use Installation and calibration are not covered under this warranty agreement 6 2 Outside of USA and Canada Consult your local distributor for warranty information 360117 1 E 14 i Series Models Section II i Series Models 7 Product Configuration 7 1 Install Battery for Backup Power The monitoring system and chart recorder each have a battery system enabling a period of continuous operation if power is lost NOTE The monitoring system will not start on battery power alone If the refrigerator was previously not connected to AC power and the batteries are installed the monitoring system will not run on battery power Battery life varies by manufacturer as well as voltage level remaining Providing full power is available and no battery related alarms are active backup power for the monitoring system is available for up to two hours NOTICE When installing replacement batteries use only batteries which meets the specifications outlined in chapter 10 7 Supplies The batteries are located below t
36. Contact a qualified service technician 360117 1 E 43 i Series Models Problem Possible Cause Action Door does not open easily Debris in the hinges Confirm the hinges are free of debris Clean the hinges if necessary A hinge is faulty Confirm the hinge spring or pin is not damaged Replace entire hinge lower hinge only if necessary Lower hinge spring and or pin may be bent or faulty Replace the entire lower hinge spring and pin assembly Monitor display is hard to read Screen contrast is set too low Change the screen contrast Alarm monitor is not responding Digital electronics are locked because of an interruption in power Reset the monitoring system 11 2 Chamber Temperature Problems Problem Possible Cause Action Chamber temperature displayed is higher or lower than the actual temperature Probe bottle is empty or the amount of solution is too low Check the level of product simulation solution in the bottle Clean and refill the bottle if necessary Monitor is not calibrated Confirm the temperature probe is reading correctly Calibrate the chamber probe if necessary Connections for the chamber temperature probe are loose Test the chamber probe connections Secure the connections if necessary Temperature probe wiring is an open circuit Check the continuity of the probe wiring Replace the probe if necessar
37. E Not shown Display assembly 400509 1 includes LCD board and touchpad NOTICE The i Center display assembly is sensitive to static electricity and can be damaged by electrostatic discharge Use proper ESD precautions when handling the display assembly NOTE Although the LCD display and touchpad may be replaced individually Helmer recommends replacing the entire display assembly 360117 1 E 51 i Series Models 12 1 3 Lower Panel A B C D E Front panel features Label Description Part Number Schematic Label A Monitoring system backup batteries 715031 AE B Flash port J15 C Circuit breakers 230 V models only knockouts shown on 115 V model 230 V 50 Hz 120272 230 V 60 Hz 120288 P D Temperature controller 400835 1 B E Main power switch 120478 Q 360117 1 E 52 i Series Models 12 2 Rear K L M A B C D E F G H I J Rear features Label Description Part Number Schematic Label A Nut flanges for brace bars used in stacking undercounter units four shown B Rear access port C Drain line copper tube segment 321190 1 D Product specification label E Power cord connector 120299 F Compressor component rear compartment door 321184 1 G Remote alarm contacts H i Center monitoring system data port I RS 232 COM port optional J Power cord K Condenser pro
38. E 10 General Information 3 4 1 Chart Recorder Access Open door by pulling door open 3 4 2 Install Chart Paper 1 Press and hold C button When stylus begins to move left release button The LED flashes to indicate current temperature range 2 When stylus stops moving remove chart knob then move knob up and away 3 Place chart paper on chart recorder 4 Gently lift stylus and rotate paper so current time line corresponds to time line groove 5 Hold chart paper and reinstall chart knob NOTE For accurate temperature reading ensure that current time is aligned with time line groove when chart knob is tightened 6 Confirm temperature range is set to the correct value 7 Press and hold C button When stylus begins to move right release button 8 Confirm stylus is marking temperature correctly 360117 1 E 11 General Information 4 Alarm Reference If an alarm condition is met an alarm activates Some alarms are visual only others are visual and audible Some alarms are sent through the remote alarm interface The table indicates if an alarm is audible A visual V or sent through the remote alarm interface R Alarm Alarm Type High Temperature A V R Low Temperature A V R Compressor Temperature A V R i Series Door Open Time A V R Power Failure A V R Low Battery V i Series No Battery A V R i Series Probe Failure A V R Chart paper V i Series 5 Comp
39. HELMER SCIENTIFIC 14400 Bergen Boulevard Noblesville IN 46060 USA PH 1 317 773 9073 FAX 1 317 773 9082 USA and Canada 800 743 5637 0086 ISO 13485 2003 CERTIFIED 360117 1 E Model Group i Series Horizon Series Blood Bank iB105 Version A HB105 Version A Laboratory Pharmacy iLR105 Version A HLR105 Version A Undercounter Refrigerator Service Manual i Series and Horizon Series 360117 1 E i Document History Revision Date CO Supersession Revision Description E 16 JAN 2014 8580 Supersedes A B C D Revised layout for ease of navigation and locating information Date submitted for Change Order review Actual release date may vary 360117 1 E ii Contents Section I General Information 6 1 About this Manual 6 1 1 Intended Audience 6 1 2 Model References 6 1 3 Copyright and Trademark
40. NOTICE Use only non CFC R 134A refrigerant Full initial refrigerant charge varies by model and power requirements which can be found on the product specification label Model Initial Charge 105 9 5 oz 269 g Obtain Refrigerant Calibrated pressure gauge 0 psi to 25 psi 0 kPa to 175 kPa NOTICE If the compressor has been changed the refrigerant charge amount may be different than stated above if the compressor has been changed contact Helmer Technical Service for to verify the refrigerant charge amount Add refrigerant 1 Attach pressure gauge to the fittings on the refrigeration lines 2 Monitor the low side suction pressure through a full compressor cycle 3 Measure the pressure at the end of the next cycle immediately before the compressor stops NOTE Pressure varies depending on ambient air temperature 4 Add refrigerant Check the pressure on the low side Low side 16 psi to 18 psi 110 kPa to 125 kPa 5 Remove pressure gauge 10 2 Test Monitoring System Backup Batteries The i Center monitoring system has visual indicators for battery charge level If the batteries deplete to a particular voltage output a flashing Low Battery alarm is initiated If the batteries are missing or nearly depleted the flashing No Battery alarm initiates Test backup batteries 1 Switch AC ON OFF switch OFF Screen should continue to display information without backlight If the display is bl
41. Replace the fan motor or door switch if necessary Condensing unit fan is not running Check the condensing unit fan connections Replace the fan motor if necessary Compressor starting relay is faulty Confirm the relay is operating correctly Replace the relay if necessary Compressor motor has seized Replace the compressor Temperature control probe is faulty Replace the probe The temperature controller is faulty Confirm the temperature controller board is operating correctly Replace it if necessary A component is faulty or internal connections are loose Contact a qualified service technician Refrigerant level is too low Check the refrigeration lines for leaks and repair them if necessary Check the refrigerant level Recharge the refrigerant if necessary 11 3 Alarm Activation Problems Problem Possible Cause Action Refrigerator is in an alarm condition but alarms are not audible Audible alarms are muted Verify that audible alarms are not muted If time remaining is greater than five minutes change MUTE timer value to five minutes and wait until timer resets A component is faulty or internal connections are loose Contact a qualified service technician The alarm buzzer is faulty Replace the alarm buzzer The alarm system is faulty Confirm the circuit board and line connections are functioning correctly The c
42. a different outlet if necessary Power cord is faulty Confirm the power cord is connected securely Secure the power cord if necessary AC ON OFF power switch located inside the front lower panel is faulty Replace the AC ON OFF power switch AC ON OFF power switch is OFF Switch the AC ON OFF power switch to the ON position A component is faulty or internal connections are loose Contact a qualified service technician A component is faulty or internal connections are loose Contact a qualified service technician 360117 1 E 84 Horizon Series Models Problem Possible Cause Action Door Open alarm is activating sporadically Door is not closing completely Clean hinges if debris is present Confirm door is aligned Confirm hinge spring and or pin are not damaged Replace hinge lower only if necessary Door is closing but not sealing completely Confirm the door gasket seals completely Replace the door gasket if necessary Connections for the door switch are faulty Test the switch connections Secure the connections if necessary Door switch is faulty Replace the door switch Monitor control board is faulty Replace the monitor control board A component is faulty or internal connections are loose Contact a qualified service technician All alarms are activating sporadically Alarm system is faulty Co
43. and or parts needs relating to a warranty issue Any repeat service calls must also be authorized as well This allows for proper diagnosis and action Helmer will not be responsible for charges incurred for service calls made by third parties prior to authorization from Helmer Helmer retains the right to replace any product in lieu of servicing it in the field 6 1 2 Compressor For the warranty period listed below Helmer will supply the refrigeration compressor if it is determined to be defective at no charge including freight 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 7 years Horizon Series model compressor warranty period is five 5 years 6 1 3 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 Warranty procedures must be followed in all events 6 1 4 Labor For a period of one 1 year Helmer will cover repair labor costs including travel and the cost of refrigerant and supplies necessary to pe
44. ank replace battery 360117 1 E 40 i Series Models 2 Switch AC ON OFF switch ON 10 3 Replace Monitoring System Backup Batteries 1 Open the access panel on the lower front of the refrigerator 2 Remove six batteries and replace with six new batteries NOTICE When installing replacement batteries use only batteries which meets the specifications outlined in chapter 10 7 Supplies 3 Close the access panel 10 4 Replace the LED Lamp Strip 1 Switch battery switch OFF Remove one battery from the monitoring system backup battery holder 2 Using a screwdriver detach lamp strip from chamber 3 Unsnap the defective lamp strip and disconnect wires 4 Connect new lamp strip to the wires 5 Reattach lamp strip to chamber 6 Switch AC ON OFF switch ON Reinstall the battery in the monitoring system backup battery holder 7 Press the MUTE button to disable the high temperature alarm while refrigerator reaches operating temperature 10 5 Clean the Refrigerator 10 5 1 Condenser Grill In environments where refrigerator is exposed to excessive lint or dust condenser grill may require cleaning more frequently than stated in preventive maintenance schedule Clean the condenser grill using a soft brush and a vacuum cleaner 10 5 2 Exterior Clean glass surfaces with soft cotton cloth and glass cleaner Clean exterior surfaces with soft cotton cloth and non abrasive liquid cleaner 10 5 3 Interior Clean painted s
45. appears on a label located in the chamber on the upper side of the right wall www helmerinc com REF SN ILR105 000000 VER A REF SN Weight 200 lb 75 kg VOLT 115 V ILR105 000000 VER A Pharmacy Refrigerator Noblesville IN USA www helmerinc com HZ 60 Amps 5 A 2009 0086 A B C D Left Chamber label Right Product specification label located on the rear at lower left Label Description A Model REF B Serial number SN C Version D Power requirements 360117 1 E 8 General Information 3 2 Control System NOTE Service information varies depending on the control system Helmer refrigerators have one of two control systems installed The type of control system varies by model 3 2 1 i Series Control System i Series refrigerators are equipped with the i Center monitoring system and independent temperature controller i Center monitor Independent temperature controller 3 2 2 Horizon Series Control System Horizon Series refrigerators feature the Horizon Series combined monitor and temperature controller The Horizon Series system controls chamber temperature and monitors and displays operational information Horizon Series combined monitoring and control system user interface 360117 1 E 9 General Information 3 3 Temperature Probes Number and location of probes varies by model External probes may be introduced through existing rear port and
46. arms protect items in the refrigerator from extended exposure to adverse temperature 8 9 1 Automatic Chamber Temperature Alarm Test NOTE Calibrate the chamber temperature probe prior to performing the Automatic Chamber alarm test The test can be aborted by selecting the Cancel High or Low Test option The test takes less than five minutes When performing an automatic temperature alarm test the Peltier device heats or cools the temperature probe until the high or low alarm setpoint is reached An event is added to the Event Log to indicate a temperature alarm was activated Test the low alarm 1 Identify the current setting for the low alarm setpoint 2 Press the MAIN button 3 Press the DOWN button to select System Alarm Test amp Status Press the SELECT button The System Alarm Test amp Status screen appears 4 Press the DOWN button to select Start Low Alarm Auto Test Press the SELECT button The Low Alarm Test in Progress message appears When the test is complete the message clears 5 View the Event Log Note the temperature at which the low alarm occurred Compare the temperature to the low alarm setpoint If the values do not match refer to chapter 11 Troubleshooting Test the high alarm 1 Identify the current setting for the high alarm setpoint 2 Press the MAIN button 3 Press the DOWN button to select System Alarm Test amp Status Press the SELECT button The System Alarm
47. as used on the lower hinge transfer the shim to the new hinge location NOTE Ensure that the upper and lower hinges are not interchanged when moving the hinges to the opposite side of the door 2 screws long Hinge plate Shim Door Hinge Attach hinge to door lower hinge shown NOTICE A second person should assist by supporting the door while the hinges are installed 2 Install the door on the cabinet a Lift the door to the cabinet b Align the holes in the hinges with the corresponding holes in the cabinet c Hand thread three screws through each hinge and into the cabinet d Do not allow the weight of the door to rest on the hinges 360117 1 E 69 Horizon Series Models 3 screws short Hinge Cabinet Attach hinge to cabinet lower hinge shown 3 Align the door and tighten screws a Support the door so the top edge of the door is level b Level the door using a shim if necessary c Tighten all screws attaching both hinges to the door and to the cabinet NOTE If a shim is necessary to level the door after hinge reversal contact Helmer Technical Service to obtain a shim 4 Route the data cable across the front of the cabinet Attach the cable to the zip tie holder under the cabinet on the hinge side Secure cable with zip tie Data cable secured at the hinge side of the cabinet after hinge reversal 5 Install the data cable in the door a Slide the data cable through the slot in the
48. atic Label A Light assembly includes circuit board and cover 800023 1 P Not shown Light cover 12 3 2 Unit Cooler A B C D Left Unit cooler with fan guard Middle Unit cooler fan Right Temperature control probe Label Description Part Number Schematic Label A Unit cooler B Fan guard C Unit cooler fan 115 V 120540 230 V 120560 H D Temperature control probe 120579 M 360117 1 E 56 i Series Models 12 4 Door Hinges D A B C E F Hinge hinge spring and pin assembly and door handle with key lock NOTE Spring tension is controlled at the point where the pin is stopped by the side plate C D Label Description Part Number A Hinge covered edge mount 220506 B Hinge uncovered without spring assembly C Hinge uncovered spring and pin assembly D Close up hinge spring and pin assembly E Door handle Magnetic offset latch with key lock 220426 F Door key lock with key close up 360117 1 E 57 i Series Models 12 5 Side Access Panel Undercounter refrigerators feature easy access for servicing removal and replacement of the compressor and condenser The compressor is accessible from the rear and the side Side access panel 360117 1 E 58 i Series Models 13 Schematics 13 1 i Series Schematic 360117 1 E 59 i Series Models 14 i Center Screen Reference HOME screen MAIN button MAIN sc
49. be 400674 1 AC L Compressor Contact Helmer A M Condensing unit fan motor Contact Helmer U Not shown Compressor solid state relay 400841 1 AD Defrost timer 800120 1 F Caster optional swivel with brake 220380 360117 1 E 53 i Series Models 12 2 1 Electrical Tray Kick plate removed Pull out electrical components tray open WARNING Disconnect the refrigerator from AC power before accessing the electrical tray NOTICE The control board is sensitive to static electricity and can be damaged by electrostatic discharge Use proper ESD precautions when handling the board 360117 1 E 54 i Series Models 12 3 Interior A B C D E F G H I Interior features Label Description Part Number Schematic Label A Door Solid door Stainless steel 400916 1 Powder coated 400916 2 Glass door optional Stainless steel 400917 1 Powder coated 400917 2 B Drawer blood bank model 400752 3 C Door switch 120380 M D Roll out basket optional 400815 1 E Standard for shelf drawer or roll out basket 321173 1 F Chamber temperature probe 400510 1 AB G Drawer slide for drawer or roll out basket 400753 2 H Probe bottle and glycerin kit 400922 1 I Shelf laboratory pharmacy model 400814 1 360117 1 E 55 i Series Models 12 3 1 Lighting A Light features partial views Label Description Part Number Schem
50. brackets 2 Gently bump rear edge of the shelf downward to engage brackets 3 Pulling shelf forward gently shelf should not disengage from rear brackets 15 4 Move Slides and Brackets Remove drawer slides 1 Using a screwdriver remove front bracket retainers 2 Tap front brackets upward to disengage standards 3 Remove slides from standards Install drawer slides 1 Insert slides into standard at appropriate height 2 Tap front brackets downward to engage standards 3 Using a screwdriver install front bracket retainers Remove shelf brackets 1 Using a screwdriver remove front bracket retainers 2 Tap front brackets upward to disengage standards 3 Remove front brackets from standards Install shelf brackets 1 Insert front brackets into standard at appropriate height 2 Tap front brackets downward to engage standards 3 Using a screwdriver install front bracket retainers 15 5 Level the Refrigerator NOTE Leveling feet are optional Helmer recommends the use of leveling feet A bubble level may be used to ensure the refrigerator is level Leveling feet must be adjusted to provide unit cooler drainage Front to back 1 Rotate the leveling feet to raise or lower leveling feet 2 When refrigerator is properly leveled bottom of the unit cooler will slope downward from front to back toward the condensate drain line Side to side 1 Rotate the leveling feet to raise or lower leveling feet
51. chamber temperature is too high or low after completing preventive maintenance and applicable troubleshooting tasks Confirm Refrigerator has been placed per location requirements in the operation manual Preventive maintenance has been completed per operation manual Troubleshooting items associated with chamber temperature have been reviewed if necessary Change setpoint 1 Determine the change in value to reach desired setpoint Adjustment should be the difference between current setpoint and new setpoint EXAMPLE Current setpoint is 4 0 C Target setpoint is 5 0 C Setpoint adjustment value is 1 0 C 2 On the monitoring system press and release SEL to change to Control mode CONTROL lamp will illuminate 3 Press and hold SET to display the reference temperature 4 Hold SET and press Up Arrow and Down Arrow as necessary to set the adjustment value determined in step 2 5 Release all buttons the setpoint is changed 6 Press and release SEL to return to Monitor mode MONITOR lamp will illuminate 16 3 Temperature Alarm Setpoints View setpoints 1 Hold Up Arrow and Down Arrow for three seconds MONITOR lamp will flash to indicate entry into program mode 2 Press SEL until desired setting appears 3 Observe the setting 4 To view another setting press SEL again optional 5 Hold Up Arrow and Down Arrow for three seconds MONITOR lamp stops flashing to indicate exit from program m
52. ckup power in the event of AC power failure 15 2 External Monitoring Devices CAUTION The interface on the remote alarm monitoring system is intended for connection to the end user s central alarm system s that uses normally open or normally closed dry contacts If an external power supply exceeding 30 V RMS or 60 V DC is connected to the remote alarm monitoring system s circuit the remote alarm will not function properly may be damaged or may result in injury to the user NOTE In the event of a power failure the power failure alarm condition is transmitted through the remote alarm contacts The remote alarm interface is a relay switch with three terminals Common COM Normally Open NO Normally Closed NC 360117 1 E 62 Horizon Series Models Terminals are dry contacts and do not supply voltage Interface circuit is either normally open or normally closed depending on terminals used Requirements for your alarm system determine which alarm wires must connect to terminals The terminals on the remote alarm interface have the following maximum load capacity 0 5 A at 125 V AC 1 A at 250 V DC 15 2 1 Connect to Remote Alarm Interface 1 Switch AC ON OFF switch OFF Disconnect the monitoring system backup battery 2 On the electrical box locate the remote alarm terminals 3 Connect remote alarm wires to appropriate terminals according to requirements for your alarm system 4
53. cooler drainage 360117 1 E 17 i Series Models Front to back 1 Rotate the leveling feet to raise or lower leveling feet 2 When refrigerator is properly leveled bottom of the unit cooler will slope downward from front to back toward the condensate drain line Side to side 1 Rotate the leveling feet to raise or lower leveling feet 2 When refrigerator is properly leveled bottom of the unit cooler will be horizontal parallel to the floor 7 7 Optional Adapter Kits for Medication Dispensing Locks Contact Helmer Technical Service or your distributor for service documentation pertaining to medication dispensing locks 7 8 Reverse Door Hinge and Handle NOTICE Before reversing door hinge and handle protect stored items in refrigerator from extended exposure to adverse temperature NOTE Refrigerator must be on the floor or on an elevated work surface with enough space in front of the refrigerator to lay the door face down for disassembly 7 8 1 Remove the Door and Hinges 1 Open the lower front control panel Switch AC ON OFF switch OFF Remove one battery from the backup battery holder 2 Remove the door handle assembly a Remove four screws holding the door handle assembly on the door b Set the door handle assembly aside Remove Door handle assembly 360117 1 E 18 i Series Models 3 Remove door latch door catch a Remove two screws holding the door latch plates and spacer bar on the cabinet b
54. ctions are loose Contact a qualified service technician Refrigerator is connected to power but the AC Power Failure alarm is active The ON OFF AC power switch is OFF Switch the AC ON OFF power switch to the ON position Outlet connection is faulty Verify power at the outlet Repair the original outlet or connect to a different outlet if necessary Power cord is faulty Confirm the power cord is connected securely Secure the power cord if necessary The ON OFF AC power switch located inside the front lower panel is faulty Replace the AC ON OFF power switch A component is faulty or internal connections are loose Contact a qualified service technician 360117 1 E 46 i Series Models Problem Possible Cause Action Door Open alarm is activating sporadically The door is not closing completely Clean hinges if debris is present Confirm door is aligned Confirm hinge spring and or pin are not damaged Replace hinge lower only if necessary The door is closing but not sealing completely Confirm the door gasket seals completely Replace the door gasket if necessary Connections for the door switch are faulty Test the switch connections Secure the connections if necessary The door switch is faulty Replace the door switch The control board is faulty Replace control parts with those included in the control an
55. d display board kit or replace the monitor control board A component is faulty or internal connections are loose Contact a qualified service technician The Door Ajar Timeout is set to zero causing the alarm to activate immediately when the door is opened Check the current setpoint for the Door Ajar alarm Change the setpoint if necessary All alarms are activating sporadically Alarm system is faulty Confirm the circuit board and line connections are functioning correctly Control board is faulty Replace control parts with those included in the control and display board kit A component is faulty or internal connections are loose Contact a qualified service technician Condenser alarm is active Condenser fins are dirty Clean as necessary or order new ones from Helmer or your distributor Ambient temperature is too high Check to ensure the refrigerator is placed according to the operating specifications in the operation manual Condenser fan motor is faulty Replace the condenser fan motor Condenser probe is not calibrated Confirm the condenser probe is reading correctly Calibrate the probe if necessary Condenser temperature probe is faulty Test the probe Replace the probe if necessary Connections for the condenser temperature probe are loose Test the probe connections Secure the connections if necessary Refri
56. e HOME button to exit New settings are saved 2 Open the door Door ajar alarm will activate immediately 3 Close the door Door ajar alarm will clear and audible alarm will cease 4 Change the Door Ajar Timeout setting to the original setting 8 9 5 No Battery Alarm Test Test the no battery alarm to ensure the batteries can provide enough power to the monitoring system and power failure alarm in the event of a power failure NOTE During an AC power failure the power failure alarm sounds and the batteries provide power to the monitoring system If AC power fails the backup batteries will allow for continued data collection and temperature display If the backup batteries fail data is not collected and the temperature is not displayed 360117 1 E 32 i Series Models Test the alarm 1 Ensure the monitoring system backup batteries are installed 2 Remove one battery from the monitoring system backup battery holder a If the no battery alarm activates no further action is needed Reinstall the battery b If the no battery alarm does not activate contact Helmer Technical Service NOTICE When installing replacement batteries use only batteries which meet the specifications outlined in chapter 10 7 Supplies 8 10 Additional System Settings 8 10 1 Screen Contrast The screen contrast can be changed for easier viewing NOTE During an AC power failure the screen backlight is not illuminated to c
57. e fragile handle with care Test the low alarm 1 Identify setting for low alarm setpoint 2 Remove chamber temperature probe from bottle 3 Immerse probe in chilled water 4 While stirring probe in chilled water add approximately one teaspoon 5 mL of ice every 20 seconds Ensure probe is at the bottom of the glass 5 When low temperature alarm sounds note the temperature on the i Center display 6 Compare the temperature at which the alarm sounds to the low alarm setpoint If values do not match refer to chapter 11 Troubleshooting Test the high alarm 1 Identify setting for high alarm setpoint 2 While stirring probe in chilled water add warm water so temperature increases 0 5 C per minute 3 When high temperature alarm sounds note the temperature on the i Center display 4 Compare the temperature at which the alarm sounds to the high alarm setpoint If values do not match refer to chapter 11 Troubleshooting 360117 1 E 31 i Series Models 5 Remove probe from warm water 6 Place temperature probe in probe bottle immersing it at least 2 50 mm 8 9 3 Power Failure Alarm Test NOTE During a power failure the power failure alarm sounds and the batteries provide power to the monitoring system If AC power fails the backup batteries will allow for continued data collection and temperature display If the backup batteries fail data is not collected and the temperature is not displayed
58. e sleeve out of slot 5 Cut the zip tie inside the cabinet Cut zip tie 360117 1 E 65 Horizon Series Models 6 Remove the door handle assembly a Remove four screws holding the door handle assembly on the door b Set the door handle assembly aside Remove Door handle assembly 7 Remove door latch door catch a Remove two screws holding the door latch plates and spacer bar on the cabinet b Set the latch plates and spacer bar aside Strike plate Remove 2 screws Cabinet Door latch plates 8 With the door shut remove the cover plate from both hinges 9 Remove the spring assembly from the lower hinge a Use a J hook tool to engage the left most hole in the spring cap and rotate the spring cap from left to right and hold b Remove the pin from the spring cap c Allow the spring to relax d Use a J hook tool to engage any hole in the spring cap compress spring downward e Remove spring assembly from the lower hinge f Set the spring assembly aside NOTICE A second person should assist by supporting the door while the hinges are removed NOTE The two screws holding the hinge on the door are longer than the three screws holding the hinge on the cabinet The screws must be installed in the same location when moving the hinge to the opposite side of the door 360117 1 E 66 Horizon Series Models 10 Remove the lower hinge a Support the door b Remove five screws attaching the lower hinge
59. e the Control Sensor Offset The temperature controller senses chamber temperature through a probe in the unit cooler The chamber setpoint typically varies from the measured temperature so an offset value is used by the control system to compensate for the difference Value is factory preset and varies for each unit Offset value can be changed from 10 0 C to 10 0 C NOTICE Control sensor offset is factory preset and should not be changed unless directed by Helmer Technical Service NOTE If the variance is within acceptable limits for your organization changing the offset value is optional 9 7 Change the Hysteresis Value Default setpoint is 2 0 C Allowable temperature variance on each side of the refrigerator setpoint NOTICE Hysteresis is factory preset and should not be changed unless directed by Helmer Technical Service 360117 1 E 39 i Series Models 10 Maintenance NOTICE 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 NOTE Refer to the operation manual for the preventive maintenance schedule 10 1 Recharge Refrigerant CAUTION Review all safety instructions prior to recharging refrigerant Refer to chapter 2 Safety Maintenance should only be performed by trained refrigeration technicians
60. e the setpoint 4 Release SET button 5 Hold Up Arrow and Down Arrow for three seconds MONITOR lamp stops flashing to indicate exit from program mode New settings are saved 16 4 Temperature Calibration Setpoints View setpoints 1 Hold UP Arrow and Down Arrow for three seconds MONITOR lamp will flash to indicate entry into program mode 2 Press SEL until desired setting appears 3 Observe the setting 4 To view another setting press SEL again optional 5 Hold Up Arrow and Down Arrow for three seconds MONITOR lamp stops flashing to indicate exit from program mode Flashing Lamp Selected Setting HIGH TEMP and MONITOR High Temp alarm setpoint LOW TEMP and MONITOR Low Temp alarm setpoint 360117 1 E 74 Horizon Series Models Flashing Lamp Selected Setting MONITOR only Monitor Offset CONTROL only Control Sensor Offset CONTROL only Control Hysteresis 16 4 1 Monitor Offset Adjust if temperature displayed on the monitor does not match measured chamber temperature Value is factory set to match an independent thermometer Value can be changed from 10 0 C to 10 0 C NOTE If the variance is within acceptable limits changing the offset value is optional Probes in the bottle are connected to the monitoring system and sense chamber temperature These probes do not affect refrigerator setpoint Obtain Independent thermometer calibrated and traceable per national s
61. erature LO Low temperature CO Condenser temperature NB No Battery AC Power failure HH HH HH Date of event month and day and the last two digits of the year II II Time hours and minutes of event J Time appears for 12 hour format A indicates AM P indicates PM KK KK Chamber temperature at time of event L Temperature units C Celsius F Fahrenheit 360117 1 E 35 i Series Models 8 11 1 Event Details A B C D E F Event Log Detail screen Label Description A Event number B Event C Alarm Type D Date and time of event E Chamber temperature at time of event F Condenser temperature at time of event View an event 1 Press the MAIN button 2 Press the DOWN button to highlight Event Log Press the SELECT button 3 From the Event Log screen press the UP or DOWN buttons to highlight the desired event number Press the SELECT button The Event Log Detail screen for the selected event is displayed 4 Press the BACK button to return to the Event Log screen or press the HOME button to exit NOTE If the event is highlighted the alarm for that event was caused by a system self test initiated by an operator 8 12 Upgrade System Firmware Helmer may occasionally issue updates for the i Center firmware Follow upgrade instructions included with the firmware update 8 13 Reset the i Center Monitoring System 1 Remove 1 battery from the monitoring system bac
62. ess the MAIN button 2 Press the DOWN button to highlight Edit Configuration Press the SELECT button 3 Enter the password when prompted 360117 1 E 25 i Series Models 4 Press the DOWN button to highlight Temperature Calibration Press the SELECT button a The Upper Probe option is displayed and the Temperature option is highlighted b Press the INC or DEC buttons to change the displayed value to match the value measured by the independent thermometer 5 Press the DOWN button to highlight Store Calibration a To save the new value press the ENTER button The Calibration Memorized message appears New settings are saved b To discard the new value press the BACK button to return to the Edit Configuration screen or press the HOME button to exit New settings are not saved 6 Remove thermometer and probe from bottle 7 Replace the probe in probe bottle 8 Replace bottle cap ensuring a tight fit 9 Place the probe in bottle immersing at least 2 50 mm NOTE The current temperature displayed by the monitoring system may change so that it no longer matches the new probe calibration value This is normal If a new probe value is entered but not saved the new value will appear when the calibration setting for the probe is viewed This is normal 8 6 Factory Default Settings Settings listed below may be simultaneously returned to factory default values NOTE The factory default settings may not be the
63. gerant level is too low Check refrigeration lines for leaks and repair if needed Check refrigerant level Recharge if low 360117 1 E 47 i Series Models Problem Possible Cause Action An alarm activated but the temperature recorded at activation does not match the alarm setpoint Monitor settings are not calibrated Confirm the temperature probe is reading correctly Calibrate the probe if necessary Temperature changed slightly around the time of activation No action needed The No Battery alarm is activating sporadically Battery voltage level on the backup batteries for the monitoring system is low Replace the backup batteries for the monitoring system 11 4 Testing Problems Problem Possible Cause Action Automatic temperature tests do not work Connections for the chamber temperature probe are loose Test the chamber temperature probe connections Secure the connections if necessary Chamber temperature probe is faulty Test the chamber temperature probe Replace the probe if necessary Control board is faulty Replace parts with those included in the control and display board kit High Alarm setpoint is set significantly higher than the default value or the Low Alarm setpoint is set significantly lower than the default value Confirm the alarm setpoints are set at the expected or correct values Test the temperature a
64. handle with care Test the low alarm 1 Identify setting for low alarm setpoint 2 Remove chamber temperature probe from bottle 3 Immerse probe in chilled water 4 While stirring probe in chilled water add approximately one teaspoon 5 mL of ice every 20 seconds Ensure probe is at the bottom of the glass 5 When low temperature alarm sounds note the temperature on the monitoring system display 360117 1 E 76 Horizon Series Models 6 Compare the temperature at which the alarm sounds to the low alarm setpoint If values do not match refer to chapter 18 Troubleshooting Test the high alarm 1 Identify setting for high alarm setpoint 2 While stirring probe in chilled water add warm water so temperature increases 0 5 C per minute 3 When high temperature alarm sounds note the temperature on the monitoring system display 4 Compare the temperature at which the alarm sounds to the high alarm setpoint If values do not match refer to chapter 18 Troubleshooting 5 Remove probe from warm water 6 Place temperature probe in probe bottle immersing it at least 2 50 mm 16 5 2 Power Failure Alarm 1 Switch AC ON OFF switch OFF Audible power failure alarm will activate immediately and PoFF power off will appear on the display 2 Switch AC ON OFF switch ON Audible power failure alarm will cease and PoFF will clear from the display 16 5 3 Door Open Alarm Factory set to three minutes Va
65. he chamber behind the front cover Monitoring system backup batteries Five batteries are installed and one battery is taped next to the backup battery holder Install the sixth battery to provide power to the monitoring system in the event of an AC power failure 7 2 External Monitoring Devices CAUTION The interface on the remote alarm monitoring system is intended for connection to the end user s central alarm system s that uses normally open or normally closed dry contacts If an external power supply exceeding 30 V RMS or 60 V DC is connected to the remote alarm monitoring system s circuit the remote alarm will not function properly may be damaged or may result in injury to the user NOTE In the event of a power failure the power failure alarm condition is transmitted through the remote alarm contacts The remote alarm interface is a relay switch with three terminals Common COM Normally Open NO Normally Closed NC 360117 1 E 15 i Series Models Terminals are dry contacts and do not supply voltage Interface circuit is either normally open or normally closed depending on terminals used Requirements for your alarm system determine which alarm wires must connect to terminals The terminals on the remote alarm interface have the following maximum load capacity 0 5 A at 125 V AC 1 A at 250 V DC 7 2 1 Connect to Remote Alarm Interface 1 Switch AC ON OFF switch OFF Re
66. he setting for the chart paper timer View the setting for the temperature graph display View the settings for temperature and time alarms Product Company Information View the software versions for control and display components of the monitoring system View information to contact Helmer i Help Access the on board help system View historical event logs and details 8 3 Temperature Graph The Temperature Graph screen appears when The Temperature Graph feature is enabled There is no interaction for one minute on any screen There are no active alarms NOTE While there is power to the monitoring system data from the chamber temperature probe is collected real time and the past 24 hours of collected data is stored and displayed In the event of an AC power failure the monitoring system continues to collect and display temperature data as long as battery power is available If AC power is restored before battery power fails there is no interruption in data collection The temperature that is displayed on the graph for eight hours earlier was the temperature eight hours ago If battery power fails the monitoring system stops displaying temperature data and stops collecting new temperature data The past 24 hours of data temperature data is retained When AC power is restored the stored data is displayed and the monitor resumes collecting and displaying real time temperature data In this case
67. icates high alarm temperature setpoint is being changed B LOW TEMP lamp Indicates when the refrigerator is in a low temperature alarm condition Also indicates low alarm temperature setpoint is being changed C DOOR ALARM lamp Indicates when the door is open D COOL lamp Indicates the compressor is running E SET lamp Indicates when temperature setpoint or alarm setpoint is being changed F Display Displays real time temperature information setpoints and alarms G SEL button Toggles between alarm monitor and control modes H CONTROL lamp Indicates when the reading from the control temperature probe is displayed I MONITOR lamp Indicates when the display is showing temperature readings from the chamber probe Also indicates when alarm setpoints are being changed J UP ARROW button Increases a temperature setting 360117 1 E 72 Horizon Series Models Label Description Function K DOWN ARROW MUTE ALARM button Decreases a temperature setting Also mutes the audible alarm for five minutes L SET button Allows settings to be selected prior to changing settings NOTE The Alarm Disable key switch disables all audible alarms This switch does not affect alarm lamps or signals sent through the remote alarm interface 16 2 Refrigerator Setpoint NOTE Default setpoint is 4 0 C Change the setpoint if Your organization requires a chamber temperature other than 4 0 C The normal
68. if installed are unlocked and free of debris Before moving unit disconnect the AC power cord and secure the cord Never physically restrict any moving component Avoid removing electrical service panels and access panels unless so instructed Keep hands away from pinch points when closing the door Avoid sharp edges when working inside the electrical compartment and refrigeration compartment Ensure biological materials are stored at recommended temperatures determined by standards literature or good laboratory practices Proceed with caution when adding and removing samples from the refrigerator Use supplied power cord only Using the equipment in a manner not specified by Helmer Scientific may impair the protection provided by the equipment Decontaminate parts prior to sending for service or repair Contact Helmer Scientific or your distributor for decontamination instructions and a Return Authorization Number Ensure biological materials are stored safely in accordance with all applicable organizational regulatory and legal requirements The refrigerator is not considered to be a storage cabinet for flammable or hazardous materials 3 Configuration 3 1 Model and Input Power NOTE Service information varies depending on the model and power requirements This information appears on the product specification label located on the rear of the refrigerator The model also
69. immersed in existing probe bottle For each probe bottle use Approximately 4 oz 120 mL of product simulation solution 10 1 ratio of water to glycerin Left Probe bottle with temperature probe Right Access port on rear of refrigerator 3 3 1 Fill Temperature Probe Bottle NOTICE Temperature probes are fragile handle with care 1 Remove all probes from bottle and remove bottle from bracket 2 Remove cap and fill with approximately 4 oz 120 mL of product simulation solution 3 Install cap and place bottle in bracket 4 Replace probes immersing at least 2 50 mm in solution 3 3 2 Install Additional Probe Through Rear Port 1 Peel back putty to expose port 2 Insert probe through port into chamber 3 Insert probe into bottle 4 Replace putty ensuring a tight seal 3 4 Chart Recorder If installed refer to the Temperature Chart Recorder Operation and Service Manual on CD The chart recorder has a battery system enabling a period of continuous operation if power is lost Battery life varies by manufacturer as well as voltage level remaining Providing full power is available backup power for the temperature chart recorder is available for up to 14 hours Prior to use Connect the chart recorder to AC power Install battery Add paper Install the chart recorder probe in the probe bottle through the rear port Calibrate chart recorder to match chamber temperature 360117 1
70. inet NOTE If a shim is necessary to level the door after hinge reversal contact Helmer Technical Service to obtain a shim 4 Install the door handle on the opposite side of the door 5 Install the latch plates and spacer bar on the opposite side of the cabinet 6 Install the hinge spring and pin assembly a Close the door b Assemble the hinge spring assembly for the left side of the door Figure A c Orient the bend in the coil toward the front of the refrigerator Figure B d Slide the internal hex cap with washer on to the upper hex bolt in the lower hinge B A Washer Internal hex cap Pin Spring Spring cap Bushing e Use a J hook tool in the spring cap to compress the spring upward Figure C f While compressing the spring slide the spring cap over the lower hex bolt in the lower hinge Figure D D C g Use a J hook tool to engage the right most hole in the spring cap and rotate the spring cap from right to left and hold h Count four holes starting from and including the spring cap hole closest to the end of the coil i Insert the pin in the fourth hole 360117 1 E 21 i Series Models Rotate the spring using a J hook tool then insert pin left hinged door shown 7 Switch AC ON OFF switch ON Reinstall the battery in the backup battery holder 8 Verify the door is level and the hinges operate smoothly and the door seals tightly 9 Press the MUTE button to disable the high temperatu
71. ittings on the refrigeration lines 2 Monitor the low side suction pressure through a full compressor cycle 3 Measure the pressure at the end of the next cycle immediately before the compressor stops NOTE Pressure varies depending on ambient air temperature 4 Add refrigerant Check the pressure on the low side Low side 16 psi to 18 psi 110 kPa to 125 kPa 5 Remove pressure gauge 17 2 Test Monitoring System Battery The monitoring system does not indicate the charge level of the battery Regularly test the battery Replace battery if the test fails or if the battery has been in use for one year Test the battery 1 Switch the AC ON OFF switch OFF a Display should continue to display information b If the display is blank replace battery 2 Switch AC ON OFF switch ON 360117 1 E 78 Horizon Series Models NOTICE When installing a replacement battery use only a battery which meets the specifications outlined in chapter 17 6 Supplies 17 3 Replace LED Lamp Strip Optional 1 Disconnect the monitoring system backup battery Switch AC ON OFF switch OFF 2 Using a screwdriver detach lamp strip from chamber 3 Unsnap the defective lamp strip and disconnect wires 4 Connect new lamp strip to the wires 5 Reattach lamp strip to chamber 6 Switch AC ON OFF switch ON Reconnect the monitoring system backup battery 7 Press the MUTE button to disable the high temperature alarm while refrigerator reaches
72. kup battery holder 2 Switch the AC ON OFF switch OFF 3 Switch the AC ON OFF switch ON 4 Reinstall the battery in the monitoring system backup battery holder 360117 1 E 36 i Series Models 8 14 View Manufacturer and Product Information 1 Press the MAIN button 2 Press the INC or DEC buttons to select the Product Company Information option Press the SELECT button Manufacturer contact information appears Software version appears 9 Temperature Controller Setpoints Independent temperature controller Temperature controller setpoints are programmed at the factory Setpoints can be viewed and changed through the temperature controller Parameter values reside in three program levels Parameters are grouped into three levels Operational 1 Control 2 Security 3 NOTICE Changing parameter values affects refrigerator operation Do not change parameter values unless instructed in product documentation or by Helmer Technical Service NOTE To change the value for a parameter first enter the program mode for that level When there is no interaction for 25 seconds the temperature controller exits program mode and returns to normal mode View or change parameter values 1 Enter program mode a Press and hold the UP and DOWN arrow buttons simultaneously for approximately three seconds b The temperature controller is now in program mode 2 Select the parameter to be changed a P
73. larms manually A component is faulty or internal connections are loose Contact a qualified service technician 360117 1 E 48 i Series Models 11 5 Condensation Problems Problem Possible Cause Action Excessive water in the water evaporation tray inside the lower compartment in the back of the unit Humid air is entering the chamber Confirm the refrigerator is level and the door is aligned closing tightly and sealing correctly Correct issues as necessary Excessive water in the chamber Humid air is entering the chamber Confirm the refrigerator is level and the door is aligned closing tightly and sealing correctly Correct issues as necessary Connection between the unit cooler and the drain tube is loose Confirm the connection is secure Tighten the connection if necessary Defrost timer bypass switch may be in the ON position Check the defrost timer bypass switch on the circuit board If in the ON position switch to the OFF position If the problem persists replace the defrost timer Drain line is plugged Confirm the drain tube is free of debris Remove debris if necessary Excessive moisture on the doors Humid air is entering the chamber Confirm the refrigerator is level and the door is aligned closing tightly and sealing correctly Relative humidity around refrigerator is too high Confirm refrigerator location meets req
74. lash memory card is not included with the refrigerator the languages may have been loaded to the i Center prior to shipment To obtain a flash memory card to load an alternate language contact Helmer Technical Service NOTE Each time the refrigerator is powered on the i Center display language must be selected 360117 1 E 33 i Series Models Set the display language on power on 1 Switch the AC ON OFF switch ON 2 Install the monitoring system battery that is taped next to the backup battery holder The refrigerator powers on and the i Center will display the System Options screen 3 Press the INC or DEC buttons to select the desired language Press the SELECT button 4 Press the HOME button to return to the HOME screen 5 If a temperature alarm sounds press the MUTE button Change the display language 1 Press the MAIN button 2 Press the DOWN button to highlight Edit Configuration Press the SELECT button 3 Enter the password when prompted 4 Press the DOWN button to highlight System Options Press the SELECT button 5 Press the UP or DOWN buttons to select Language Press the SELECT button 6 Press the INC or DEC buttons to select the desired language 7 Press the BACK button to return to the System Options screen or press the HOME button to exit The new settings are saved 8 10 4 Temperature Units Available options are Celsius C or Fahrenheit F The default temperature unit is Celsius Change
75. lay 400842 1 AA Defrost timer 800120 1 F Caster optional swivel with brake 220380 360117 1 E 89 Horizon Series Models 19 2 1 Electrical Tray Kick plate removed Pull out electrical components tray open WARNING Disconnect the refrigerator from AC power before accessing the electrical tray NOTICE The control board is sensitive to static electricity and can be damaged by electrostatic discharge Use proper ESD precautions when handling the board 360117 1 E 90 Horizon Series Models 19 3 Interior A B C D E F G H I Interior features Label Description Part Number Schematic Label A Door Solid door Stainless steel 400918 1 Powder coated 400918 2 Glass door optional Stainless steel 400919 1 Powder coated 400919 2 B Drawer blood bank model 400752 4 C Door switch 120380 M D Roll out basket optional 400815 1 E Standard for shelf drawer or roll out basket 321173 1 F Chamber temperature probe 400512 1 AB G Drawer slide for drawer or roll out basket 400753 2 H Probe bottle and glycerin kit 400922 1 I Shelf laboratory pharmacy model 400814 1 360117 1 E 91 Horizon Series Models 19 3 1 Lighting Optional A Light features partial views Label Description Part Number Schematic Label A Light assembly includes circuit board and cover 800023 1 P Not shown Light cover
76. lf 1 With one hand lift front edge of the shelf from the front brackets 2 With the other hand reach under the shelf and bump rear edge of the shelf upward to disengage rear brackets Install a shelf 1 Insert shelf into chamber placing it on brackets 2 Gently bump rear edge of the shelf downward to engage brackets 3 Pulling shelf forward gently shelf should not disengage from rear brackets 7 4 Drawer Labels Drawer with sample label not provided 7 5 Move Slides and Brackets Remove drawer slides 1 Using a screwdriver remove front bracket retainers 2 Tap front brackets upward to disengage standards 3 Remove slides from standards Install drawer slides 1 Insert slides into standard at appropriate height 2 Tap front brackets downward to engage standards 3 Using a screwdriver install front bracket retainers Remove shelf brackets 1 Using a screwdriver remove front bracket retainers 2 Tap front brackets upward to disengage standards 3 Remove front brackets from standards Install shelf brackets 1 Insert front brackets into standard at appropriate height 2 Tap front brackets downward to engage standards 3 Using a screwdriver install front bracket retainers 7 6 Level the Refrigerator NOTE Leveling feet are optional Helmer recommends the use of leveling feet A bubble level may be used to ensure the refrigerator is level Leveling feet must be adjusted to provide unit
77. liance 5 1 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 EC REP Emergo Europe Molenstraat 15 2513 BH The Hague Netherlands 5 2 WEEE Compliance The WEEE waste electrical and electronic equipment symbol right indicates compliance with European Union Directive WEEE 2002 96 EC and applicable provisions The directive sets requirements for labeling and disposal of certain products in affected countries When disposing of this product in countries affected by this directive Do not dispose of this product as unsorted municipal waste Collect this product separately Use collection and return systems available locally For more information on the return recovery or recycling of this product contact your local distributor 360117 1 E 12 General Information 6 Warranty 6 1 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 6 1 1 Rapid Resolution When a warranty issue arises it is our desire to respond quickly and appropriately The service department at Helmer is there for you Helmer will oversee the handling of your warranty service from start to finish Therefore Helmer must give advance authorization for all service calls
78. lue can not be changed Test the alarm 1 Open refrigerator door and note the time 2 After three minutes audible alarm will activate and DOOR ALARM lamp will flash 3 Close refrigerator door Audible door open alarm will cease and DOOR ALARM lamp will stop flashing 360117 1 E 77 Horizon Series Models 17 Maintenance NOTICE 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 NOTE Refer to the operation manual for the preventive maintenance schedule 17 1 Recharge Refrigerant CAUTION Review all safety instructions prior to recharging refrigerant Refer to chapter 2 Safety Maintenance should only be performed by trained refrigeration technicians NOTICE Use only non CFC R 134A refrigerant Full initial refrigerant charge varies by model and power requirements which can be found on the product specification label Model Initial Charge 105 9 5 oz 269 g Obtain Refrigerant Calibrated pressure gauge 0 psi to 25 psi 0 kPa to 175 kPa NOTICE If the compressor has been changed the refrigerant charge amount may be different than stated above if the compressor has been changed contact Helmer Technical Service for to verify the refrigerant charge amount Add refrigerant 1 Attach pressure gauge to the f
79. m The default setting for the chart paper timer is Enabled One sheet of chart paper records temperatures continuously for seven days The timer activates an alarm 6 5 days from when the timer is reset The timer period cannot be changed NOTE Available options are Enabled Disabled and Reset Enabling the timer also resets the timer Change the setting 1 Press the MAIN button 2 Press the DOWN button to highlight Edit Configuration Press the SELECT button 3 Enter the password when prompted 360117 1 E 29 i Series Models 4 Press the DOWN button to highlight System Options Press the SELECT button 5 Press the DOWN button to highlight Chart Paper Timer 6 Press the INC or DEC buttons to select Enabled Disabled or Reset 7 Do one of the following If Enabled or Disabled is selected press the BACK button to return to the System Options screen or press the HOME button to exit The new setting is saved If Reset is selected a Press the DOWN button b Press the PAPER CHANGED button The System Options screen appears with the Chart Paper Timer set to Enabled 8 Press the BACK button to return to the System Options screen or press the HOME button to exit The new setting is saved 8 9 Test Alarms Test alarms to ensure they are working correctly The refrigerator has alarms for chamber temperature compressor temperature door open time no battery and power failure NOTICE Before testing al
80. move one battery from the monitoring system backup battery holder 2 On back of refrigerator locate the remote alarm terminals 3 Connect remote alarm wires to appropriate terminals according to requirements for your alarm system 4 Use a cable tie to relieve strain on alarm wires as necessary 5 Reinstall the battery in the monitoring system backup battery holder Switch AC ON OFF switch ON 6 Touch MUTE to disable the high temperature alarm while refrigerator reaches operating temperature 7 3 Move Drawers Shelves and Baskets Storage features CAUTION Keep hands away from pinch points when closing the door Before moving drawers ensure they are completely empty for safe lifting Maximum basket drawer or shelf load is 100 lbs 46 kg NOTICE Before moving storage components protect stored items in refrigerator from extended exposure to adverse temperature Remove a drawer or basket 1 Pull drawer or basket out until it stops 2 On the right rail locate the release tab and press downward 3 While holding the right release tab downward locate the release tab on the left rail and press upward 4 Pull drawer or basket free of the slides Install a drawer or basket 1 Align end guides on drawer or basket with the slides 2 Gently push drawer or basket into chamber until it stops 3 Pull drawer or basket out until it stops check for smooth operation 360117 1 E 16 i Series Models Remove a she
81. mperature probe display Temperature option VIEW CONFIGURATION screen Clock Mode display Date Format display Door Ajar Timeout display Pwr Failure Timeout display High Alarm Setpoint display Low Alarm Setpoint display Cond Alarm Setpoint display Alarm Volume display Alarm Pulse display Chart Paper Days Left or Chart Paper Timer display Temperature Graph display 360117 1 E 61 Horizon Series Models Section III Horizon Series Models 15 Product Configuration 15 1 Install Battery for Backup Power The monitoring system has a battery system enabling a period of continuous operation if power is lost NOTE The monitoring system will start on battery power alone If the refrigerator was previously not connected to AC power and the battery is connected the monitoring system will begin running on battery power Battery life varies by manufacturer as well as voltage level remaining Providing full power is available and no battery related alarms are active backup power for the monitoring system is available for up to two hours NOTICE When installing a replacement battery use only a battery which meets the specifications outlined in chapter 17 6 Supplies The the battery is located below the chamber behind the front cover Monitoring system backup battery Monitoring system battery is installed backwards in the battery holder Reverse the installation and connect the battery to provide monitoring system with ba
82. nd repair them if necessary Check the refrigerant level Recharge the refrigerant if necessary Compressor starting relay is faulty Confirm the relay is operating correctly Replace the relay if necessary Condenser grill is dirty Check the condenser grill Clean it if necessary Circulation in the chamber is not adequate Check if there are any items that may obstruct air flow and remove them if necessary Ambient air temperature around the refrigerator is too high Confirm refrigerator location meets requirements Refer to the operation manual A component is faulty or internal connections are loose Contact a qualified service technician 18 3 Alarm Activation Problems Problem Possible Cause Action Refrigerator is in an alarm condition but alarms are not audible Alarm system is faulty Confirm the circuit board and line connections are functioning correctly Monitor control board is faulty Replace the monitor control board Alarm buzzer is faulty Replace the alarm buzzer A component is faulty or internal connections are loose Contact a qualified service technician Alarm Disable key is in the OFF position Switch the Alarm Disable key to the ON position Audible alarms are muted Verify that audible alarms are not muted 360117 1 E 83 Horizon Series Models Problem Possible Cause Action Refrigerator mee
83. nfirm the circuit board and line connections are functioning correctly Monitor control board is faulty Replace the monitor control board A component is faulty or internal connections are loose Contact a qualified service technician An alarm activated but the temperature at activation does not match the alarm setpoint Temperature changed slightly around the time of activation No action needed 18 4 Condensation Problems Problem Possible Cause Action Excessive water in the water evaporation tray inside the lower compartment in the back of the unit Humid air is entering the chamber Confirm the refrigerator is level and the door is aligned closing tightly and sealing correctly Correct issues as necessary Excessive water in the chamber Humid air is entering the chamber Confirm the refrigerator is level and the door is aligned closing tightly and sealing correctly Correct issues as necessary Connection between the unit cooler and the drain tube is loose Confirm the connection is secure Tighten the connection if necessary Defrost timer bypass switch may be in the ON position Check the defrost timer bypass switch on the circuit board If in the ON position switch to the OFF position If the problem persists replace the defrost timer Drain line is plugged Confirm the drain tube is free of debris Remove debris if necessary
84. obe if necessary Compressor runs continuously Refrigerator setpoint is set too low Confirm the setpoint is set within the operating range and change it if necessary Temperature control probe in the unit cooler is faulty Confirm the unit cooler probe is providing resistance in the range of 98 to 110 Replace the probe if necessary Monitor control board is faulty Confirm the monitor control board is operating correctly Replace it if necessary Compressor starting relay is faulty Confirm the relay is operating correctly Replace the relay if necessary 360117 1 E 82 Horizon Series Models Problem Possible Cause Action Chamber temperature does not stabilize at the refrigerator setpoint Monitor control board is faulty Confirm the monitor control board is operating correctly Replace it if necessary Condensing unit fan is not running Check the condensing unit fan connections Replace the fan motor if necessary Unit cooler fan is not running Check the voltage to the fan when door switch is activated Replace the fan motor or door switch if necessary Compressor motor has seized Replace the compressor Temperature control probe is faulty Confirm the probe is providing resistance in the range of 98 to 110 Replace the probe if necessary Refrigerant level is too low Check the refrigeration lines for leaks a
85. ode 360117 1 E 73 Horizon Series Models Flashing Lamp Selected Setting HIGH TEMP and MONITOR High Temp alarm setpoint LOW TEMP and MONITOR Low Temp alarm setpoint MONITOR only Monitor Offset CONTROL only Control Sensor Offset CONTROL only Control Hysteresis 16 3 1 High Temperature Alarm Specifies the temperature at which the High Temperature Alarm activates Default setpoint is 5 5 C Setpoint can be changed from 40 0 C to 25 0 C Change the setpoint 1 Hold Up Arrow and Down Arrow for three seconds MONITOR lamp will flash to indicate entry into program mode 2 Press SEL until HIGH TEMP and MONITOR lamps flash 3 Hold SET then press Up Arrow or Down Arrow to change the setpoint 4 Release SET button 5 Hold Up Arrow and Down Arrow for three seconds MONITOR lamp stops flashing to indicate exit from program mode New settings are saved 16 3 2 Low Temperature Alarm Specifies the temperature at which the Low Temperature Alarm activates Default setpoint for HB blood bank models is 1 5 C Default setpoint for HLR and HPR laboratory and pharmacy models is 2 0 C Setpoint can be changed from 40 0 C to 25 0 C Change the setpoint 1 Hold Up Arrow and Down Arrow for three seconds MONITOR lamp will flash to indicate entry into program mode 2 Press SEL until LOW TEMP and MONITOR lamps flash 3 Hold SET then press Up Arrow or Down Arrow to chang
86. onnected and routed correctly a Wiring should be routed above copper tube inside the unit cooler b Reconnect wires if they have separated 360117 1 E 80 Horizon Series Models 2 Attach unit cooler cover a Lift unit cooler cover into place b Front edge of the cover should be behind the unit cooler case c Use the socket wrench to install four screws to secure the unit cooler cover 3 Insert the drain hose through hole in the refrigerator a Push drain hose upward toward the unit cooler drain port b In the chamber push drain hose onto unit cooler drain port 4 Reinstall top drawer basket or shelf if previously removed 5 On the back of the cabinet press putty around the drain hose 6 Switch AC ON OFF switch ON Reconnect the monitoring system backup battery 7 Press the MUTE button to disable the high temperature alarm while refrigerator reaches operating temperature 17 6 Supplies Refrigerant non CFC R 134A Chart paper 220366 52 sheets Glycerin solution 400922 1 LED lamp strip optional 800023 1 Monitoring system backup battery 1 9 V non rechargeable lithium or equivalent Chart recorder backup battery optional 1 9 V non rechargeable alkaline or equivalent 360117 1 E 81 Horizon Series Models 18 Troubleshooting CAUTION Review all safety instructions prior to troubleshooting Refer to chapter 2 Safety Troubleshooting should only be performed by trained refrige
87. onserve backup battery power During an AC power failure the screen contrast cannot be changed Change screen contrast 1 On the HOME screen press the third button from the left to make the text appear lighter 2 On the HOME screen press the second button from the left to make the text appear darker 8 10 2 Date and Time The Date Format setting controls the order in which the month mm and day dd are displayed Month is a 2 digit number 01 12 Day is a 2 digit number 01 31 Default date format is mm dd yyyy The Clock Mode setting controls whether the time is displayed in a 12 hour or 24 hour format When using the 12 hour format AM or PM must be specified Default setting is 12 hour Change date and time settings 1 Press the MAIN button 2 Press the DOWN button to highlight Edit Configuration Press the SELECT button 3 Enter the password when prompted 4 Press the DOWN button to highlight Set Date amp Time Press the SELECT button 5 Press the UP or DOWN buttons to select the date and time settings to change 6 Press the INC or DEC buttons to change the setting 7 Press the BACK button to return to the Edit Configuration screen or press the HOME button to exit The new settings are saved 8 10 3 Display Language The i Center monitoring system stores two languages English is the default language If a different language is desired it must be loaded from the flash memory card If a f
88. ontrol board is faulty Replace control parts with those included in the control and display board kit 360117 1 E 45 i Series Models Problem Possible Cause Action Refrigerator meets an alarm condition but the appropriate alarm is not active The alarm setpoint was changed Check the current setpoints for the temperature alarms Change the setpoints if necessary A component is faulty or internal connections are loose Contact a qualified service technician The control board is faulty Replace control parts with those included in the control and display board kit High Temperature alarm activates when the door is opened then clears shortly after the door is closed The probe bottle is empty Check the level of product simulation solution in the bottle Clean and refill bottle if needed The high temperature alarm setpoint is set too low Check the setpoint Change the setpoint if necessary Unit cooler fan continues to run while the door is open Test the door switch and unit cooler fan connections Secure the connections if necessary Replace the door switch or fan motor if necessary Connections for the chamber temperature probe are loose Test the chamber temperature probe connections Secure the connections if necessary Chamber probe is faulty Test the probe Replace the probe if necessary A component is faulty or internal conne
89. ooler 91 19 4 Door Hinges 92 19 5 Side Access Panel 93 20 Schematics 94 20 1 Horizon Series Schematic 94 360117 1 E 6 General Information Section I General Information 1 About this Manual 1 1 Intended Audience This manual is intended for use by end users of the refrigerator and authorized service technicians 1 2 Model References Generic references are used throughout this manual to group models that contain similar features For example 105 models refers to all models of that size iB105 iLR105 HB105 HLR105 This manual covers all undercounter refrigerators which may be identified singly by their size or by their respective Series 1 3 Copyright and Trademark Helmer i Series i Center Horizon Series and Rel i are registered trademarks or
90. orizon Series Models 19 1 2 Control and Monitoring A B C Label Description Part Number Schematic Label A Horizon Series monitoring and control system B Temperature chart recorder standard on blood bank model optional on laboratory pharmacy model C Chart paper 52 sheets 220366 Not shown Chart recorder backup battery 120218 19 1 3 Lower Panel A B C D E Lower panel features Label Description Part Number Schematic Label A Condenser B Monitoring system backup battery 120399 AE C Light switch optional 120202 AX D Alarm disable key switch M E Main power switch 120478 Q Not shown Circuit breakers 230 V models only 230 V 50 Hz 120272 230 V 60 Hz 120288 P 360117 1 E 88 Horizon Series Models 19 2 Rear J K A B C D E F G H I Rear features Label Description Part Number Schematic Label A Nut flanges for brace bars used in stacking undercounter units four shown B Rear access port C Drain line copper tube segment 321190 1 D Product specification label E Power cord connector 120299 F Compressor component rear compartment door 321184 1 G Remote alarm contacts H Power cord I Condensate evaporator tray J Compressor Contact Helmer A K Condensing unit fan motor Contact Helmer U Not shown Compressor solid state re
91. r cool COOL Unit Fahrenheit or Celsius C drES Display resolution Yes 9 3 Security Level 3 Parameters and Values SE Parameter Description Default Value s COd Access code for security 0 9 4 Error Codes Parameter Description PSC Thermostat probe has short circuit PFA Thermostat probe is broken Temperature value is higher than the scale Temperature value is lower than the scale 360117 1 E 38 i Series Models 9 5 Change the Refrigerator Setpoint NOTE Default setpoint is 4 0 C Parameter values are factory preset and should not be changed unless directed by Helmer Technical Service When there is no interaction for 25 seconds the temperature controller exits program mode and returns to normal mode The reference temperature displayed on the temperature controller may not be the same as the temperature displayed on the i Center monitor 1 Observe the chamber temperature displayed on the i Center 2 Determine how much the refrigerator setpoint will be changed EXAMPLE Current setpoint is 4 0 C Target setpoint is 4 5 C Setpoint adjustment value is 0 5 C 3 On the temperature controller press and hold the SET button 4 While holding the SET button press the UP or DOWN arrow buttons to change the temperature setpoint by the same value as determined in step 2 5 Release all buttons The temperature setpoint is changed 9 6 Chang
92. ration technicians 18 1 General Operation Problems Problem Possible Cause Action A drawer or basket does not slide easily Debris in the drawer slides Pull the drawer or basket out and confirm the slides are free of debris Clean if necessary Drawer slides are not lubricated Using a lightweight oil lubricate the bearings in the slides Drawer or basket is misaligned or not level Confirm both slides for the drawer or basket are mounted at the same height A drawer slide is faulty Contact a qualified service technician Door does not open easily Debris in the hinges Confirm the hinges are free of debris Clean the hinges if necessary A hinge is faulty Confirm the hinge spring or pin is not damaged Replace entire hinge lower hinge only if necessary Lower hinge spring and or pin may be bent or faulty Replace the entire lower hinge spring and pin assembly 18 2 Chamber Temperature Problems Problem Possible Cause Action Prob probe appears on display but chamber temperature is set correctly Connections for the chamber temperature probe are loose Test the chamber probe connections Secure the connections if necessary Calibrate the probe if necessary Chamber temperature probe wiring is an open circuit Check the continuity of the chamber probe wiring and connections Secure the connections or replace the pr
93. re alarm while refrigerator reaches operating temperature 7 9 Stacked Undercounter Units WARNING For a stacked configuration both units must have leveling feet installed The back brace bars and front stabilizing brackets must be installed When stacking a refrigerator and freezer 104 and or 105 models place the heavier unit on the bottom Do not open multiple loaded drawers or baskets at the same time Call Helmer or your distributor for more information on the stacking kit and for methods to secure both units to the wall and or the floor 8 Temperature Monitor Settings 8 1 Home Screen The HOME screen appears when The HOME button is pressed from any other screen There is no interaction for two minutes on any screen other than those used to enter a password A B C D E F HOME screen on the monitoring system Label Description Label Description A Screen name D Button labels B Battery voltage level E Buttons C Chamber temperature display F Date and time display 360117 1 E 22 i Series Models 8 1 1 Home Screen Functions NOTE Refer to chapter 14 i Center Screen Reference for a complete list of screens in the i Center monitoring system View current temperature readings View the current time and date View detailed information about current or previous alarm events View the remaining backup battery charge View active alarms Mu
94. reen MUTE button changes mute timer LIGHT button turns light on or off if option installed MAIN screen Event Log option Press the SELECT button EVENT LOG screen System Alarm Test amp Status option SYSTEM ALARM TEST amp STATUS screen Edit Configuration option Enter the password CONFIGURATION screen View Configuration option VIEW CONFIGURATION screen Product Company Information option INFORMATION screen EVENT LOG screen EVENT LOG DETAIL screen SYSTEM ALARM TEST amp STATUS screen Start High Alarm Auto Test option Start Low Alarm Auto Test option Cancel High or Low Test option Chart Paper Days Left or Chart Paper Timer display Door Status display Condenser Temp display CONFIGURATION screen Set Date amp Time option SET DATE amp TIME screen System Options option SYSTEM OPTIONS screen Alarm Setpoints option SET ALARM SETPOINT screen Temperature Calibration option TEMPERATURE CALIBRATION screen Factory Default Settings option FACTORY DEFAULT SETTINGS screen Change Password option Enter a new password 360117 1 E 60 i Series Models SYSTEM OPTIONS screen Language option Date Format option Alarm Volume option Alarm Pulse option Temperature Units option Chart Paper Timer option SET ALARM SETPOINT screen High Alarm Setpoint option Low Alarm Setpoint option Cond Alarm Setpoint option Door Ajar Timeout option Power Failure Timeout option Temperature Graph option TEMPERATURE CALIBRATION screen Te
95. ress and release the UP or DOWN arrow buttons until the desired program level flashes on the display 3 Change a parameter value a Press and release the DOWN arrow button until the desired parameter flashes on the display b Press and hold the SET button c While holding the SET button press the UP or DOWN arrow buttons to change the value 4 Release all buttons to exit the parameter New settings are saved 5 Repeat steps 2 through 4 to access another program level or to view or change parameter values in the selected level 360117 1 E 37 i Series Models 6 Exit program mode a Press and hold the UP and DOWN arrow buttons simultaneously for approximately one second b The current chamber temperature is displayed 9 1 Operational Level 1 Parameters and Values OU NOTE Parameters are listed in order of appearance The temperature controller is programmed at the factory to yield a refrigerator setpoint of 4 0 C Parameter Description Default Value o LOL Lower Limit of the setpoint 0 0 o UPL Upper limit of the setpoint 20 0 o OFF Offset value for the refrigerator Varies 1 o HYS Hysteresis value 2 0 o PPn Run time for compressor in the event of a probe failure 2 0 o PPF Off time 20 0 1 Increase value to lower chamber temperature Reduce value to raise chamber temperature 9 2 Control Level 2 Parameters and Values Cn Parameter Description Default Value C tYP Heat o
96. rform authorized repairs Repair service must be performed by an authorized Helmer service agency following the authorization process detailed above Alternatively your facility s staff may work with a Helmer technician to make repairs Labor costs for repairs made by unauthorized service personnel or without the assistance of a Helmer technician will be the responsibility of the end user 6 1 5 Additional Warranty Information The time periods set forth above begin two 2 weeks after the original date of shipment from Helmer Warranty procedures set forth above must be followed in all events THERE ARE NO WARRANTIES WHICH EXTEND BEYOND THE DESCRIPTION ON THE FACE HEREOF THIS WARRANTY IS EXCLUSIVE AND IN LIEU OF ALL OTHER WARRANTIES EXPRESS OR IMPLIED INCLUDING WITHOUT LIMITATION ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE NO WARRANTIES OF MERCHANTABILITY OR FITNESS FOR PARTICULAR PURPOSE SHALL APPLY THE LIABILITY IF ANY OF HELMER FOR DIRECT DAMAGES WHETHER ARISING FROM A BREACH OF ANY SALES AGREEMENT BREACH OF WARRANTY NEGLIGENCE OR INDEMNITY STRICT LIABILITY OR OTHER TORT OR OTHERWISE WITH RESPECT TO THE GOODS OR ANY 360117 1 E 13 i Series Models SERVICES IS LIMITED TO AN AMOUNT NOT TO EXCEED THE PRICE OF THE PARTICULAR GOODS OR SERVICES GIVING RISE TO THE LIABILITY IN NO EVENT SHALL HELMER BE LIABLE FOR ANY INDIRECT INCIDENTAL CONSEQUENTIAL OR SPECIAL DAMAGES INCLUDING WITHOUT LIMITATION D
97. roller senses chamber temperature through a probe in the unit cooler The chamber setpoint typically varies from the measured temperature so an offset value is used by the control system to compensate for the difference Value is factory preset and varies for each unit Offset value can be changed from 10 0 C to 10 0 C NOTICE Control Sensor Offset is factory preset and should not be changed unless directed by Helmer Technical Service NOTE If the variance is within acceptable limits for your organization changing the offset value is optional 16 4 3 Hysteresis Default setpoint is 1 0 C Allowable temperature variance on each side of the refrigerator setpoint NOTICE Hysteresis is factory preset and should not be changed unless directed by Helmer Technical Service 16 5 Test Alarms Test alarms to ensure they are working correctly The refrigerator has alarms for chamber temperature power failure and door open time NOTICE Before testing alarms protect items in refrigerator from extended exposure to adverse temperature 16 5 1 Chamber Temperature Alarm IMPORTANT Perform the low alarm test before the high alarm test to control the temperature more closely and complete the testing more quickly Obtain 1 8 oz 250 mL glass half full of chilled water 1 glass filled with crushed ice 1 8 oz 250 mL glass half full of warm water NOTICE Temperature probes are fragile
98. side 360117 1 E 19 i Series Models Shim Remove 2 screws long Remove 3 screws short Cabinet Hinge plate Hinge Door Hinge removal lower hinge shown with spring removed 8 Lay the door face down in front of the cabinet 7 8 2 Reinstall the Door and Hinges 1 Install the hinges and hinge plates on the door a Hand thread two screws through each hinge and into the door b Leave the screws slightly loose c If a shim was used on the lower hinge transfer the shim to the new hinge location NOTE Ensure that the upper and lower hinges are not interchanged when moving the hinges to the opposite side of the door 2 screws long Hinge plate Shim Door Hinge Attach hinge to door lower hinge shown NOTICE A second person should assist by supporting the door while the hinges are installed 2 Install the door on the cabinet a Lift the door to the cabinet b Align the holes in the hinges with the corresponding holes in the cabinet c Hand thread three screws through each hinge and into the cabinet d Do not allow the weight of the door to rest on the hinges 3 screws short Hinge Cabinet Attach hinge to cabinet lower hinge shown 360117 1 E 20 i Series Models 3 Align the door and tighten screws a Support the door so the top edge of the door is level b Level the door using a shim if necessary c Tighten all screws attaching both hinges to the door and to the cab
99. tandards Tape to attach thermometer to temperature probe Measure the chamber temperature 1 Remove the probe from the probe bottle 2 Unscrew the cap from the bottle 3 Tape the thermometer to the temperature probe and place them in the bottle The probe and thermometer should be immersed at least 2 50 mm 4 Close the door and allow the chamber temperature to stabilize for 10 minutes 5 Observe and note the thermometer temperature 6 Lower the Offset Value to lower displayed monitor temperature raise the Offset Value to raise displayed monitor temperature EXAMPLE Measured temperature at the probe bottle is 4 0 C Displayed temperature is 4 5 C Offset adjustment value is 0 5 C 7 Remove thermometer and probe from bottle and remove tape 8 Replace the probe in probe bottle 9 Replace bottle cap ensuring a tight fit 10 Place the probe in bottle immersing at least 2 50 mm Enter the new offset value 1 Hold Up Arrow and Down Arrow for three seconds MONITOR lamp will flash to indicate entry into program mode 2 Press SEL until only the MONITOR lamp flashes 3 Hold SET then press Up Arrow or Down Arrow to change the setpoint 4 Release SET button 5 Hold Up Arrow and Down Arrow for three seconds MONITOR lamp stops flashing to indicate exit from program mode New settings are saved 360117 1 E 75 Horizon Series Models 16 4 2 Control Sensor Offset The temperature cont
100. tch AC ON OFF switch ON Reconnect the battery 12 Close the lower front control panel 13 Press the MUTE button to disable the high temperature alarm while refrigerator reaches operating temperature 14 Verify the door is level and the hinges operate smoothly and the door seals tightly 360117 1 E 71 Horizon Series Models 15 8 Stacked Undercounter Units WARNING For a stacked configuration both units must have leveling feet installed The back brace bars and front stabilizing brackets must be installed When stacking a refrigerator and freezer 104 and or 105 models place the heavier unit on the bottom Do not open multiple loaded drawers or baskets at the same time Call Helmer or your distributor for more information on the stacking kit and for methods to secure both units to the wall and or the floor 16 Settings Through the Horizon Series monitoring and control system current settings may be viewed and changed NOTICE Control Sensor Offset and Hysteresis settings are factory preset and should not be changed unless directed by Helmer Technical Service Changing temperature settings affects operation of the refrigerator Do not change settings unless instructed by Helmer Technical Service 16 1 Monitor and Controller Interface A B D F G H J K L C E I Label Description Function A HIGH TEMP lamp Indicates when the refrigerator is in a high temperature alarm condition Also ind
101. te audible alarms Adjust contrast View 24 hour chamber temperature graph Access Main screen to view and change settings 8 2 Main Screen The Main screen displays functional options that allow access to all other screens in the system MAIN screen functional options Functions available from the Main screen Option Function Event Log View historical information about alarms and operational events System Alarm Test and Status Start or stop an automatic test for temperature alarms View the number of days remaining before the paper for the temperature chart recorder needs to be changed View the current status of the door OPEN or CLOSED View the current condenser temperature Edit Configuration password required Change the language used for text Change date and time information Change temperature units Change the volume and pattern for audible alarms Enable or disable the chart paper timer Enable or disable the temperature graph display Change alarm related setpoints and timers Calibrate the temperature probe reading Change some settings to the factory default values Change the password preventing unauthorized changes 360117 1 E 23 i Series Models Option Function View Configuration View the date and time formats View alarm related setpoints and timers View the volume and pattern for audible alarms View t
102. temperature units 1 Press the MAIN button 2 Press the DOWN button to highlight Edit Configuration Press the SELECT button 3 Enter the password when prompted 4 Press the DOWN button to highlight System Options Press the SELECT button 5 Press the DOWN button to highlight Temperature Units 6 Press the INC or DEC buttons to select the desired temperature units 7 Press the BACK button to return to the Edit Configuration screen or press the HOME button to exit The new setting is saved 360117 1 E 34 i Series Models 8 11 Event Log The Event Log shows information from alarm events 50 most recent events can be viewed on the Event Log screen Number of door openings for the current and previous day can be viewed View the event log 1 Press the MAIN button 2 Press the DOWN button to highlight Event Log Press the SELECT button The Event Log screen is displayed Event log format EVENT LOG Door AA AA BB BB Openings C D EE F GG HH HH HH II IIJ KK KK L Item Description AA AA Current date month and day BB BB Previous date month and day C Number of door openings on current date D Number of door openings on previous date EE Event number The most recent event is numbered as 1 Values can be 1 50 F Event S indicates the start of an alarm condition R indicates the alarm was reset and the system returned to normal GG Alarm Type DR Door Open HI High temp
103. ter the new password then re enter the new password when prompted If password entries match the update message is displayed If password entries do not match the incorrect match message is displayed Repeat the procedure to change the password 8 5 Calibrate Chamber Temperature Probe Verify the temperature probe is reading chamber temperature correctly by comparing the chamber probe reading to temperature read by an independent thermometer If the chamber temperature probe is not reading correctly change the value displayed on the temperature monitoring system NOTE If the variance is within acceptable limits for your organization changing probe settings is optional Default setting for chamber temperature is 4 0 C Value is factory preset Obtain Independent thermometer calibrated and traceable per national standards Measure the chamber temperature 1 Remove the probe from the probe bottle 2 Unscrew the cap from the bottle 3 Insert the thermometer and temperature probe in the bottle The probe and thermometer should be immersed at least 2 50 mm 4 Close the door and allow the chamber temperature to stabilize for 10 minutes 5 Observe and note the thermometer temperature EXAMPLE Measured temperature at the probe bottle is 4 0 C Displayed temperature is 4 5 C Change displayed temperature to 4 0 C Enter the new calibration value 1 On the HOME screen pr
104. tery for Backup Power 14 7 2 External Monitoring Devices 14 7 2 1 Connect to Remote Alarm Interface 15 7 3 Move Drawers Shelves and Baskets 15 7 4 Drawer Labels 16 7 5 Move Slides and Brackets 16 7 6 Level the Refrigerator 16 7 7 Optional Adapter Kits for Medication Dispensing Locks 17 360117 1 E iii 7 8 Reverse Door Hinge and Handle 17 7 8 1 Remove the Door and Hinges
105. there is an interruption in data collection the temperature displayed on the graph for eight hours earlier was the temperature at eight hours before the backup power failed 8 3 1 Enable or Disable the Temperature Graph The i Center has a real time temperature graph which displays temperature probe readings for the past 24 hours of operation This graph appears on the bottom of the HOME screen when no button has been pressed for one minute and if no alarm is active The graph clears if a button is pressed or an alarm activates NOTE The temperature graph is enabled by default 360117 1 E 24 i Series Models Enable or disable the temperature graph 1 On the HOME screen press the MAIN button 2 Press the DOWN button to select Edit Configuration Press the SELECT button 3 Enter the password when prompted 4 Press the DOWN button to select Temperature Graph 5 Press the INC or DEC buttons to select enable or disable the temperature graph 6 Press the BACK button to return to the Edit Configuration screen or press the HOME button to exit 8 4 Change Configuration Password The default password is 1234 A new password must use four digits ranging from 1 to 5 Change the password 1 On the HOME screen press the MAIN button 2 Press the DOWN button to select Edit Configuration Press the SELECT button 3 Enter the password when prompted 4 Press the DOWN button to select Change Password Press the SELECT button 5 En
106. to the door and cabinet c Remove the lower hinge d Reverse the hinge manually as if moving the hinge from a fully closed to a fully open position e Set the lower hinge aside f Continue to support the door 11 Remove the upper hinge a Remove five screws attaching the upper hinge to the door and cabinet b Remove the upper hinge c Reverse the hinge manually as if moving the hinge from a fully closed to a fully open position d Set the upper hinge aside Shim Remove 2 screws long Remove 3 screws short Cabinet Hinge plate Hinge Door Hinge removal lower hinge shown with spring removed 12 Lay the door face down in front of the cabinet Ensure that there is no strain on the data cable passing from the cabinet to the door 15 7 2 Reverse the Cable Routing in the Door The undercounter door consists of an inner frame and outer frame The data cable is connected to the display circuit board on the front of the door The length of the cable inside the door is approximately three feet The cable follows a channel along the top and side of the outer frame Additional slack has been bundled in the cable A B C D Outer door frame right hinged solid door shown and data cable 360117 1 E 67 Horizon Series Models Label Description A Outer door frame B Data cable gray C Cable exit corner of door D Additional cable slack 1 Lay the door assembly face down on a solid work
107. ts an alarm condition but the appropriate alarm is not active Monitor control board is faulty Replace the monitor control board Alarm setpoint was changed Check the current setpoints for the temperature alarms Change the setpoints if necessary A component is faulty or internal connections are loose Contact a qualified service technician High Temperature alarm activates when the door is opened then clears shortly after the door is closed Connections for the chamber temperature probe are loose Test the chamber temperature probe connections Secure the connections if necessary Chamber probe is faulty Test the probe Replace the probe if necessary Unit cooler fan continues to run while the door is open Test the door switch and unit cooler fan connections Secure the connections if necessary Replace the door switch or fan motor if necessary Probe bottle is empty Check the level of product simulation solution in the bottle Clean and refill bottle if needed High temperature alarm setpoint is set too low Check the setpoint Change the setpoint if necessary A component is faulty or internal connections are loose Contact a qualified service technician Refrigerator is connected to power but the AC Power Failure alarm is active Outlet connection is faulty Verify power at the outlet Repair the original outlet or connect to
108. uirements Water leaks from the bottom of the refrigerator Humid air is entering the chamber Confirm the refrigerator is level and the door is aligned closing tightly and sealing correctly Excessive water is found in the evaporation tray inside the refrigerator Contact a qualified service technician 360117 1 E 49 i Series Models 12 Parts NOTICE 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 12 1 Front 12 1 1 Monitoring System A B C Monitoring features Label Description Part Number A i Center stand alone monitoring system standard on iLR105 B Combined i Center monitoring system and temperature chart recorder standard on iB105 C Chart paper 220366 52 sheets Not shown Chart recorder backup battery 120218 360117 1 E 50 i Series Models 12 1 2 i Center Display Parts A B C D E Left Display assembly including LCD display and touchpad Middle Display board Right Control board Label Description Part Number Schematic Label A LCD display see note below 120452 K B Touchpad 320722 1 K C Interface cable 400831 1 D Display board Included in the control and display board kit K E Control board assembly includes display and control board 400651 3
109. ult delay setting is three minutes Setting can be changed from 0 minutes to 60 minutes Change the alarm delay 1 Press the MAIN button 2 Press the DOWN button to highlight Edit Configuration Press the SELECT button 3 Enter the password when prompted 4 Press the DOWN button to highlight Alarm Setpoints Press the SELECT button 5 Press the DOWN button to highlight Door Ajar Timeout 6 Press the INC or DEC buttons to change the setting 7 Press the BACK button to return to the Edit Configuration screen or press the HOME button to exit The new settings are saved 8 8 7 Power Failure Alarm The Power Failure Timeout specifies longest time the refrigerator can be without AC power before the alarm activates If the time elapsed since the last power failure is greater than or equal to this value the alarm activates Default delay setting is three minutes Setting can be changed from 0 minutes to 60 minutes Change the alarm delay 1 Press the MAIN button 2 Press the DOWN button to highlight Edit Configuration Press the SELECT button 3 Enter the password when prompted 4 Press the DOWN button to highlight Alarm Setpoints Press the SELECT button 5 Press the DOWN button to highlight Power Failure Timeout 6 Press the INC or DEC buttons to change the setting 7 Press the BACK button to return to the Edit Configuration screen or press the HOME button to exit The new settings are saved 8 8 8 Chart Paper Alar
110. ume for all audible alarms Default setting is 10 Setting can be changed from 1 to 10 1 is the quietest setting 10 is the loudest setting Change the alarm volume 1 Press the MAIN button 2 Press the DOWN button to highlight Edit Configuration Press the SELECT button 3 Enter the password when prompted 4 Press the DOWN button to highlight System Options Press the SELECT button 5 Press the DOWN button to highlight Alarm Volume 6 Press the INC or DEC buttons to change the setting 7 Press the BACK button to return to the Edit Configuration screen or press the HOME button to exit The new settings are saved 8 8 2 Alarm Pulse The alarm pattern can be changed This is useful if several refrigerators with alarms are collocated and distinguishing the source of the alarm quickly is desirable Default setting is Single Setting can be changed between Single Double Triple and Constant Change the alarm pulse 1 Press the MAIN button 2 Press the DOWN button to highlight Edit Configuration Press the SELECT button 3 Enter the password when prompted 4 Press the DOWN button to highlight System Options Press the SELECT button 5 Press the DOWN button to highlight Alarm Pulse 6 Press the INC or DEC buttons to change the setting 7 Press the BACK button to return to the Edit Configuration screen or press the HOME button to exit The new settings are saved 360117 1 E 27 i Series Models 8
111. urfaces with mild detergent Clean stainless steel surfaces with a general purpose laboratory cleaner suitable for stainless steel 10 5 4 Door Gaskets Clean with soft cloth and mild soap and water solution 10 5 5 Clean and Refill Probe Bottle NOTE A kit that includes a probe bottle and glycerin is available from Helmer Obtain Fresh water bleach solution not provided 1 9 ratio of bleach to water Bleach is 5 solution of commercial sodium hypochlorite NaOCl Equivalent oxidizing cleaner disinfectant approved by your organization may be substituted 4 oz 120 mL of product simulation solution per bottle 10 1 ratio of water to glycerin 360117 1 E 41 i Series Models Clean and refill bottle 1 Remove probe from bottle 2 Remove bottle from bracket 3 Clean bottle with water bleach solution 4 Fill bottle with 4 oz 120 mL of product simulation solution 5 Cap bottle tightly to minimize evaporation 6 Place bottle in bracket 7 Replace probe immersing at least 2 50 mm 10 6 Unit Cooler Cover Removal and Installation 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 Required tools 5 16 socket wrench Tool to push putty away from the drain hose A B C Drain line and hose Label Description A Unit
112. y Digital electronics are locked because of an interruption in power Reset the monitoring system Compressor runs continuously Refrigerator setpoint is set too low Confirm the setpoint is set within the operating range and change it if necessary Temperature control probe in the unit cooler is faulty Replace the probe Solid state relay is faulty Confirm the relay is operating correctly Replace the relay if necessary Temperature controller is faulty Confirm the temperature controller board is operating correctly Replace it if necessary Defrost timer is faulty Replace the defrost timer 360117 1 E 44 i Series Models Problem Possible Cause Action Chamber temperature does not stabilize at the refrigerator setpoint Probe bottle is empty or the amount of solution is too low Check the level of product simulation solution in the bottle Clean and refill the bottle if necessary Condenser grill is dirty Check the condenser grill Clean it if necessary Ambient air temperature around the refrigerator is too high Confirm refrigerator location meets requirements Refer to the operation manual Circulation in the chamber is not adequate Check if there are any items that may obstruct air flow and remove them if necessary Unit cooler fan is not running Check the voltage to the fan when door switch is activated

Undercounter Refrigerator Service Manual

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