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Undercounter Refrigerator Service Manual

1. 71 13 2 Refrigerator setpoint configuration o seses sess kesis wasis sesa sassa a sx 72 13 3 External monitoring devices soe eae doo er ey He Ge eee 73 13 4 Moving drawers shelves and baskets 74 13 5 Leveling the refrigerator i svara otek dei MAGNE rw xx wey Ve Ea ees 75 13 6 Doorcharacteristlcs e RR RUE VEE a da ee eee 76 13 7 Optional adapter kits for medication dispensing 76 13 8 Door hinge and handle reversal all 5 76 13 9 Hinge reversal solid door with Access Control 81 13 10 Hinge reversal solid door without Access Control 83 13 11 Hinge reversal glass door 6 hh 85 13 12 Hinge spring assembly reversal llle hr 87 13 13 Stacking undercounter units u u ss sa tees 88 14 Temperature Controller lt 89 14 1 HYSteresis eek See dao eke EG gau RE a ERG EGG redde Cae ide 89 14 2 High alarm Setpoint 3 taco seo Xp o Ren seder D RR S Susu Reden M RU Dea red kt 89 143 Low alarm setpoint sci casio card en Dp aede Md Bee UR Go he ee du RU ks RA RR 89
2. Left Original cable routing wired for right hinged door Right New cable routing wired for left hinged door 5 Slide the data cable and grommet through the slot in the door and insert the door side grommet into the hole in the door Return to chapter 13 8 step 12 and complete the hinge reversal procedure Helmer 360140 1 C 13 11 Horizon Series Models Product Configuration 85 Hinge reversal glass door The undercounter door is comprised of an inner frame and outer frame A A gray data cable B is connected to the display circuit board The cable exits the door at the corner C The length of the cable inside the door is approximately 3 feet and it follows a channel along the top and side of the outer door frame Additional slack has been bundled in the cable D to allow the door hinges to be reversed If the refrigerator is equipped with the Access Control option a second cable E will be included for the Access Control lock A Outer door frame right hinged glass door shown data cable and optional Access Control cable 1 Remove all remaining screws from both sides of the door assembly 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 3 Remove the plug from the handle side of the door Set the plug aside 4 Pull the grommet out of the hole in the door and s
3. 4 Compress the spring with a J hook tool right hinged door shown 6 With a J hook tool engage the first hole of the spring cap and rotate the cap from left to right and hold Count 4 holes starting from and including the spring cap hole closest to the spring end Insert the pin securely in the 4th hole Rotate the spring using a J hook tool then insert pin right hinged door shown 7 Replace the hinge cover over the spring and pin assembly 8 Test the door to make sure it is level and closes easily and fully Stacking undercounter units A CAUTION For a stacked configuration both units must have leveling feet installed The back brace Helmer bars and front stabilizing brackets must be used When stacking a refrigerator and a freezer always place the freezer on the bottom Call Helmer or your distributor for more information on the stacking kit and on optional ways to secure both units to the wall and or the floor 360140 1 C i Series Models Temperature Controller Programs 27 Temperature Controller Programs NOTE The Lower Temperature calibration setting is not applicable to undercounter refrigerator models Control Sensor Probe 4 0 C Contre Sensor kvaperstor Det Upper Temperature Lower Temperature Compreisce Prose Temperature Left Temperature Controller Programs screen Right Temperature Calibration screen Coty arie r Fm Saty ne Setting
4. Low Battery No Cellular Servie j Energy conservation and regulatory compliance This device complies with the requirements of directive 93 42 EEC concerning Medical Devices as amended by 2007 47 EC C This product is certified to applicable UL and CSA standards by a NRTL Insulation Type 2 0050 Pollution Degree 2 for use in USA and Canada only Sound level is less than 70 dB A 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 the labeling and disposal of certain products in affected countries When disposing of this product in countries affected by this directive gt Do not dispose of this product as unsorted municipal waste gt Collect this product separately gt Use the collection and return systems available locally For more information on the return recovery or recycling of this product contact your local distributor END OF MANUAL 360140 1 C Helmer HELMER SCIENTIFIC 14400 Bergen Boulevard Noblesville IN 46060 USA Phone 1 317 773 9073 Fax 1 317 773 9082 www helmerinc com Helmer
5. Optional To change the value for another setting repeat steps 2 4 6 To exit program mode press and hold both the Up Arrow and Down Arrow buttons for three seconds The MONITOR lamp stops flashing to indicate program mode exit The new settings are saved Calibrating the monitor readout To ensure the high and low temperature alarms activate properly the chamber temperature read by the chamber probe must be accurate Verify the probe readings by comparing its values to those from an independent thermometer After determining the actual chamber temperature enter this value to calibrate the chamber temperature probe NOTE If the variance is within acceptable limits changing the offset value is optional The monitor offset can be changed to a value from 10 0 C to 10 0 C The factory default value for the chamber temperature probe is 4 0 C Obtain gt An independent thermometer calibrated and traceable per national standards P used to secure the chamber probe to the thermometer 1 Measure the temperature of the probe bottle solution a Remove all probes as well as the cap from the bottle b Tape the independent thermometer to the temperature probe and place both in the bottle Immerse the ends at least 2 inches 50 mm in the solution c Allow the chamber temperature to stabilize for approximately 10 minutes d Obtain and record the reading from the independent thermometer 2 Determine how to adjust the offset value
6. 2 A bubble level may be used to ensure the refrigerator is level 3 When the refrigerator is properly leveled from side to side the bottom of the unit cooler will be horizontal parallel to the floor 4 6 Door characteristics In general service information varies depending on the door characteristics In Helmer undercounter refrigerators the single door is solid standard configuration or optional glass The door has a spring loaded self closing hinge set which may be located on the right or the left side of the door frame The monitoring and control system interface is located on the door Model group Door type Blood bank iB Glass or solid Laboratory pharmacy iLR 4 7 Optional adapter kits for medication dispensing locks Call Helmer or your distributor for specific system information Helmer 360140 1 C i Series Models Product Configuration 17 4 8 Door hinge and handle reversal all models A CAUTION Reversing the door hinges and handle requires the refrigerator to be disconnected from outlet power Before starting this procedure take precautions to protect items in the refrigerator from extended exposure to adverse temperatures The procedure for reversing the hinges and door handle is the same on all undercounter refrigerator models regardless of door type glass door or solid door Following are instructions for reversing the door hinges and the door handle For specific instructions regarding cable
7. 31 6 3 Replacing the LED lamp strip csin curie kh yaq sa ai en 31 6 4 Cleaning the refrigerator 4 32 ase ed saa nakke senka AE age ke awe ned ads 32 6 5 Removing and installing the unit cooler 33 6 6 Removing and replacing the Access Control cartridge 34 6 7 OUPPIIES bese se wah a de bus uu busua bed 37 f Troubleshooting siess ck based x UE oS Che wee Sates 38 7 1 General operation problems 2 uuu vnr arna narrer narrer n 38 7 2 Chamber temperature problems 39 7 3 Alarm activation 5 2 tee 40 7 4 Testing problems oar m elc sugd d Gade pukk P PARE UL saken ee GES 43 7 5 Condensation problems saus va fre sage uba ARGE UR ce i RC UR GA NER u w CUR LR UR aged 44 360140 1 C Helmer ii Undercounter Refrigerator Service Manual SAEC Lara an ee eae ears oh E cede aaa 45 8 1 Control and monitoring aa dE rh 45 8 2 Front aa uya ka die GE 2 a ia sd vas sek ka Ds usa SG g 2 ska stas sara 47 8 3 Rear and underneathi iiio sss xk REGI dane dees ak eee 48 8 4 Side access panel ii iu b RR EE E Er o
8. Helmer Undercounter Refrigerator Service Manual i Series and Horizon Series Blood Bank Models 1 iB105 Version B Horizon Series HB105 Version B Laboratory Pharmacy Models j Series iLR105 Version B Horizon Series HLR105 Version B Model S N HELMER SCIENTIFIC C 14400 Bergen Boulevard 0086 Noblesville IN 46060 USA Phone 1 317 773 9073 ISO 13485 2003 CERTIFIED USA and Canada 800 743 5637 360140 1 C Contents i Contents Section I General 1 1 1 About this Manual EE E sack eww s aos a WD 3 EE EN ass EE Ed a ws 2 4 2 1 Abels wR RA IE Hare eG MEGA Sa Rae ad 4 2 2 Avolding INJULY cz gadd dd 4 3 Conflg ratlO deck aa ua eee Sis see 5 3 1 Finding model and input power 5 3 2 Identifying the control system _ l usa QN tee ee 5 3 3 Preparing the temperature 6 3 4 Preparing the chart recorder ise mereces RU E Rm Rae ass 7 Section Il i Series 9 4 Product Configurations sodes eRERERERRR ERE EET PE RR RE RUE RUE RR ens
9. Touch the Low Alarm Test button to start the low alarm test The button begins to flash In the Alarm Condition area a Peltier Test Probe Cooling message appears a N When the displayed temperature reaches the alarm setpoint the temperature reading turns red and an event is added to the Event Log indicating the low temperature alarm was initiated o When completed the message Test Complete appears at the right side of the screen 7 View the Event Log by touching Home i C APPS Information Logs Event Log Touch the event to view the Event Log Detail screen 8 Observe the temperature at the time of the low temperature alarm event Compare this value to the alarm setpoint If the values do not match refer to chapter 7 Troubleshooting for information on how to proceed NOTE If the temperature alarm test does not automatically complete within two minutes restart the 1 C monitoring system 360140 1 C Helmer 62 Undercounter Refrigerator Service Manual 10 3 2 To automatically test the high temperature alarm Identify the current setting for the high alarm setpoint Touch Home i C APPS Temperature Alarm Test The Temperature Alarm Test screen is displayed Touch the High Alarm Test button to start the high alarm test The button begins to flash In the Alarm Condition area a Peltier Test Probe Warming message appears ak N When the displayed temperature reaches the alarm setpoint the temp
10. gt Power the refrigerator off and disconnect AC power before performing service gt The chamber temperature will increase above the allowable temperature range for stored inventory while performing this procedure Take precaution to protect items in the refrigerator from extended exposure to adverse temperature The following is required to remove and replace the Access Control cartridge gt Needle nose pliers P 10 spanner driver 360140 1 C i Series Models Maintenance 35 To remove the Access Control cartridge 1 In the lower front control panel switch the AC ON OFF switch OFF Disconnect the refrigerator from outlet power as well Disable the power failure alarm by touching the Mute button 2 Open the refrigerator door and prop the door open If the door is in a locked state use the manual override key to override the Access Control lock then open the refrigerator door 3 Pull the electrical wiring out of the door handle to expose the spade connectors Separate the two pairs of spade connectors 4 Remove the three screws securing the handle and cartridge to the door NOTE To obtain a 10 spanner driver part number 220559 Contact Helmer Technical Service NOTE Nylon spacers are installed over the middle and lower screws between the handle and the door These spacers will be reused when the new cartridge is installed 5 Remove the door handle and cartridge from the door To install the replacement Access Control
11. tighten all screws attaching both hinges to the door and to the cabinet Using the additional slack in the power and communication cables and Access Control cable if equipped route the cables across the front of the cabinet Attach the cables to the zip tie holder under the cabinet on the hinge side Secure cables with zip tie Power and communication cables secured at the hinge side of the cabinet after hinge reversal 16 17 18 19 20 21 22 23 Slide the braided sleeve through the slot in the access panel then install the grommet in the hole Install the plug in the access panel on the opposite side Allow enough slack approximately 3 inches in the braided sleeve between the door and the cabinet so the door can pivot open and closed without straining the cable Install the access panel and cover using six 6 screws Install the kick panel using four 4 screws Install the door handle on the opposite side of the door For models equipped with the Access Control option reconnect the spade connectors for the Access Control lock Install the latch plates and spacer bar on the opposite side of the cabinet If the refrigerator is equipped with the Access Control option install the catch on the cabinet Finish reversing the lower hinge and spring and pin assembly Follow the procedure in chapter 4 10 Hinge spring assembly reversal then return to step 22 in this chapter Reconnect the refrigerator to outlet power In the lo
12. 1 Pull the drawer or basket all the way out until it stops 2 On the right rail locate the release tab and press it downward 3 While holding the right release tab downward locate the release tab on the left rail and press it upward 4 Pull the drawer or basket free of the slides To install a drawer or basket 1 Align the end guides on the drawer or basket with the slides 2 Gently push the drawer or basket into the chamber until it stops 3 To ensure proper installation pull drawer or basket back out until it stops then push it back in again To remove a shelf 1 With one hand lift the front edge of the shelf from the front brackets 2 With the other hand reach under the shelf and gently bump the rear edge of the shelf upward to disengage it from the rear brackets To install a shelf 1 Insert the shelf into the chamber placing it on the brackets 2 Gently bump the rear edge of the shelf downward to engage it with the rear brackets 3 Test installation by pulling the shelf forward gently The shelf should not disengage from rear brackets Drawer labels Drawers feature a label groove labels not provided Drawer with sample label Moving slides and brackets To remove a set of slides 1 Using a screwdriver remove the retainers for the front brackets 2 Tap the front brackets upward to disengage them from the standard 3 Remove the slide from the standards To install a set of slides 1 Insert the slides into the a
13. 9 1 iB and iLR models 105 configuration MAIN POWER 115V 10 60 Hz 230V 10 50 Hz 230V 1102 60 Hz Na A POWER CORD L2IN GND L1IN D Power Entry I RFI Filter L2 OUT GND L1 OUT vases Sj CIRCUIT No 07 BREAKERS 230V ONLY MAIN ONON POWER SWITCH gt LINE L1 NEUTRAL L2 SOLID STATE RELAY 1 i C3 J18 Pin 9 i C3 Power PCBA COMPRESSOR LINE FILTER i C3 Power PCBA i Series Refrigerator iB and iLR 105 models Page 1 of 2 F UNIT COOLER JUNCTION BOX SNUBBER CIRCUIT UNIT COOLER FAN To i C3 J18 Pin GROUND TERMINAL 16 2 3 41 5 e 7 seng Alddns 90 360140 1 C Helmer 56 Helmer iM SD Memory Card 2032 n DEBUG HELMER INC 400937 1 08 USB z KO lag 5 W R 319 touch i C3 Display Undercounter Refrigerator Service Manual iQ Bezel Mount Components Speaker SERIAL NUMBER LABEL CD Back Light tiger sss 310 POWER a i Series Refrige iB and iLR 105 models Page 2 of 2 i C3 L
14. Pull the electrical wiring out of the door handle to expose the spade connectors Separate the two pairs of spade connectors Remove the three screws securing the handle and cartridge to the door NOTE To obtain a 10 spanner driver part number 220559 Contact Helmer Technical Service NOTE Nylon spacers are installed over the middle and lower screws between the handle and the 5 door These spacers will be reused when the new cartridge is installed Remove the door handle and cartridge from the door 360140 1 C Horizon Series Models Maintenance 95 To install the replacement Access Control cartridge 1 Place the cartridge inside the handle aligning the holes in the cartridge with the holes in the handle 2 While holding the cartridge in the handle insert a screw through the upper hole in the handle then through the door latch latch bushings and the cartridge body 3 Hold the handle and cartridge against the door and hand thread the upper screw into the upper hole in the door Latch Nylon latch bushing Upper screw Metal latch bushing Install middle Screw here Nylon spacer Install nylon spacer here Lower screw 4 Use needle nose pliers to hold the nylon spacer inside the door handle aligned with the middle hole in the handle Insert a screw through the handle and the spacer and hand thread it into the door 5 Use needle nose pliers to hold the nylon spacer inside the door handle aligned wi
15. Replace the door switch or fan motor if necessary The probe bottle is gt Check the level of product simulation solution empty in the bottle Clean and refill bottle if needed The high temperature gt Check the setpoint Change the setpoint if alarm setpoint is set too necessary low A component is faulty or Contact Helmer Technical Service internal connections are loose The refrigerator is Outlet connection is P Verify power at the outlet Repair the original connected to power but faulty outlet or connect to a different outlet if necessary the AC Power Failure Power cord is faulty gt Confirm the power cord is connected securely alarm is active Secure the power cord if necessary The ON OFF AC power Replace the ON OFF AC power switch switch located inside the front lower panel is faulty The ON OFF AC power gt Turn the ON OFF AC power switch to the ON switch is OFF position A component is faulty or Contact Helmer Technical Service internal connections are loose A component is faulty or Contact Helmer Technical Service internal connections are loose The circuit breaker is P Reset or replace the circuit breaker tripped 360140 1 C Helmer 42 Undercounter Refrigerator Service Manual Possible Cause The Door Open alarm is The door is not closing Clean hinges if debris is present activating sporadically completely gt Confirm door is aligned gt Confirm
16. Temperature control probe 800048 1 Helmer 360140 1 C i Series Models Parts 53 8 5 4 Storage parts D B E F Storage features Label Description Replacement part numbers Label on schematic A Door Solid door Stainless steel 800063 2 Powder coated 800063 1 Glass door optional Stainless steel 800060 2 Powder coated 800060 1 fbrawertbioodbank mode moms c Drawer slide for drawer or rollout baster 4932 D Rolton basker optional _ ssi J BOBICU TUE TIT IAE _ F Shelf daboratory pharmacy model _ 4041 Not Optional adapter kit for medication Call Helmer or your distributor for shown dispensing lock specific information 360140 1 C Helmer 54 Undercounter Refrigerator Service Manual 8 6 Door and hinge parts 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 B Hinge uncovered without spring assembly 4 C Hinge uncovered spring and pin assembly f 4 D Close up hinge spring and pin assembly Door handle Magnetic offset latch with key lock 220426 Door key lock with key close up Not Door lock replacement kit 208 shown NOTE For information on the spring and pin assembly see chapter 4 10 Hinge spring assembly reversal Helmer 360140 1 C 9 Schematics i Series Models Schematics 55
17. or by using the product in a manner other than for its intended use Installation and calibration are not covered under this warranty agreement Outside of USA and Canada Consult your local distributor for warranty information 360140 1 C 12 12 1 12 2 i Series Models References and Compliance 67 References and Compliance Alarm reference If an alarm condition is met an alarm activates Some alarms are visual only while others are visual and audible Some alarms are sent through the remote alarm interface The table below indicates if an alarm for a particular model is audible A visual V or sent through the remote alarm interface R Messages for visual alarms if applicable appear in the table as well A V Low Temperature R A V Door Open R A V No Cell Service R Energy conservation and regulatory compliance This device complies with the requirements of directive 93 42 EEC concerning C Medical Devices as amended by 2007 47 EC This product is certified to applicable UL and CSA standards by a NRTL Insulation Type 2 1086 Pollution Degree 2 for use in USA and Canada only Sound level is less than 70 dB A 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 the labeling and disposal of certain pro
18. screen touch i C APPS 1 Settings Enter the Settings password then touch Temperature Setpoints NOTE The Settings screen may be password protected A valid four digit password must be entered to view settings If viewing settings for the first time enter the factory default password of 1234 4 Touch plus or minus on the Temperature Setpoint spin box until the correct value appears The button increments are 0 1 C 5 Thesetpoint is changed Touch Home to return to the home screen 360140 1 C Helmer 14 Undercounter Refrigerator Service Manual 4 3 External monitoring devices N CAUTION P Do not connect any monitoring device that exceeds the maximum load capacity for 4 4 A your model p 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 P If an external power supply exceeding 33 V r m s or 70 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 The refrigerator provides a remote alarm interface to send information to external devices such as the Helmer Remote Alarm Monitoring System For more information and availability contact Helmer or your local distributor The remote alarm interface is a relay switch with three terminals Common COM Normally O
19. 14 4 Control temperature offset value nn 89 14 5 Monitor temperature offset 89 Helmer 360140 1 C Contents iii 15 Maintendlib B 5x2 dca ea eda 90 15 1 Recharging refrigerant 22 scis 4555 RR RR RE AE Ed x nna 90 15 3 Checking the monitoring system backup 90 15 4 Replacing the LED lamp strip J uuu z sl suasya 5 I Res 91 15 5 Cleaning the refrigerator 0 0 cee ee eee eee hs 91 15 6 Removing and installing the unit cooler 92 15 7 Removing and replacing the Access Control cartridge 94 19 8 Supplies CELUM 96 16 Troubleshootiig ERR REA ERR REAPER 97 16 1 General operation problems 00000 les 97 16 2 Chamber temperature problems 00 00 nh 97 16 3 Alarm activation problems uuu u u zu l uQ cc eee 99 16 4 Condensation problems uuu uv usus ccc ees 102 I7 PAS TER hes EEE 103 17 1 Control and monitoring 2 0 hh rs 103 I2 Fron G 104 163 REAR ANG under osea ad sige RR RR n
20. 14 hours NOTE If AC power is lost the monitoring system will automatically disable some features to prolong backup battery power Data collection functions will continue until backup battery power is depleted CAUTION gt Before installing or replacing batteries disconnect power to the refrigerator gt When installing a replacement battery for the monitoring system use only a battery which meets the specifications outlined in chapter 6 7 Supplies The the battery is located below the chamber behind the front cover A cover plate must be removed to access the backup battery Monitoring system backup battery access panel removed The type of battery for the monitoring system varies by model Models Monitoring system Battery requirements iB105 and iLR105 Combined alarm monitoring and One rechargeable 12 V lead acid control system sealed battery The rechargeable backup battery that is switched off for shipping Switch the battery ON to provide the monitoring system with backup power in the event of a main power failure 360140 1 C Helmer 12 Undercounter Refrigerator Service Manual 4 2 4 2 1 Helmer Refrigerator setpoint configuration The temperature controller adjusts chamber temperature around the refrigerator setpoint The controller activates the compressor when the chamber probe registers temperature above the setpoint The controller also senses unit cooler temperature through a probe in
21. 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 360140 1 C Helmer 66 Undercounter Refrigerator Service Manual 11 2 Helmer 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 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 DAMAGES 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
22. Contact Helmer Technical Service internal connections are loose The circuit breaker is P Reset or replace the circuit breaker tripped The Door Open alarm is The door is not closing Clean hinges if debris is present activating sporadically completely gt Confirm door is aligned gt Confirm hinge spring and or pin are not damaged Replace hinge lower only if necessary The door is closing but gt Confirm the door gasket seals completely not sealing completely Replace the door gasket if necessary Connections for the door Test the switch connections Secure the switch are faulty connections if necessary The door switch is gt Replace the door switch faulty The monitor control gt Replace control parts with those included in board is faulty the control and display board kit or replace the monitor control board A component is faulty or Contact Helmer Technical Service internal connections are loose Helmer 360140 1 C Horizon Series Models Troubleshooting 101 Possible Cause All alarms are activating The alarm system is gt Confirm the circuit board and line connections sporadically faulty are functioning correctly The monitor control gt Replace control parts with those included in board is faulty the control and display board kit or replace the monitor control board A component is faulty or Contact Helmer Technical Service internal connections are loose Th
23. Helmer 360140 1 C Horizon Series Models Parts 111 17 5 4 Storage parts C A D B E F Storage and related parts Replacement part numbers A Door Solid door Stainless steel with Access Control 800062 2 Stainless steel without Access Control 800064 2 Powder coated with Access Control 800062 1 Powder coated without Access Control 800064 1 Glass door optional Stainless steel with Access Control 800059 2 Stainless steel without Access Control 800061 2 Powder coated with Access Control 800059 1 Powder coated without Access Control 800061 1 Drawer D Rekewbakerpiwna Not Optional adapter kit for medication Call Helmer or your distributor for specific shown dispensing lock information 360140 1 C Helmer 112 Undercounter Refrigerator Service Manual 17 6 Helmer Door and hinge parts 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 B Hinge uncovered without spring assembly 4 C Hinge uncovered spring and pin assembly f C D Close up hinge spring and pin assembly Door handle Magnetic offset latch with key lock 220426 Door key lock with key close up Not Door lock replacement kit 208 shown NOTE For information on the spring and pin assembly see chapter 13 12 Hinge spring assembly reversal 36014
24. Helmer 360140 1 C Section I General Information 1 Section General Information 360140 1 C Helmer 2 Undercounter Refrigerator Service Manual This page left blank intentionally Helmer 360140 1 C 1 1 1 2 1 2 1 1 2 2 1 2 3 1 3 General Information About this Manual 3 About this Manual This chapter explains the symbols and conventions used in this manual copyright information about this document and trademark information for products supplied by Helmer Intended audience This manual is intended for use by authorized end users and qualified service technicians and is to be used in conjunction with the 1 User Guide Refrigerator Operation Manual Chart Recorder Operation Manual and the Horizon Access Control Keypad User Guide available on the CD shipped with the refrigerator Symbols and conventions Cautions A Caution is used to call attention to a condition or possible situation that could damage or destroy the equipment or the operator s work CAUTION Temperature probes are fragile Handle them with care Notes Notes contain additional information about a topic Notes are used to provide information about how a topic relates to another topic or background information about a design characteristic NOTE Spare parts are available for purchase through Helmer Model references Generic references are used to group undercounter refrigerators that contain similar features For exam
25. a Compare the reading from the thermometer to that on the monitor b Determine how much to increase or decrease the offset value to make the monitor reading match the thermometer reading 360140 1 C Horizon Series Models Settings 117 3 Enter and save the offset value a To enter program mode press and hold both the Up Arrow and Down Arrow buttons for three seconds The MONITOR lamp flashes to indicate program mode enable b Press and release the SEL button until only the MONITOR lamp flashes The monitor offset parameter is selected c While pressing and holding the SET button press and release the Up Arrow or Down Arrow buttons to change the offset value When the changes are complete release the SET button e To exit program mode press and hold both the Up Arrow and Down Arrow buttons for three seconds The MONITOR lamp stops flashing to indicate program mode exit The new setting is saved 4 Toreturn the temperature probe to its normal location a Remove the thermometer and probe from the bottle and remove the tape b Re cap the bottle ensuring it fits tightly to minimize evaporation C Place the temperature probe into the bottle and immerse at least 2 inches 50 mm in the solution 19 3 3 Calibrating the evaporator probe To ensure the refrigerator maintains the correct temperature the evaporator temperature probe has been calibrated at the factory Changing the calibration setting for the evaporator probe is not typically nece
26. 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 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 perform 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 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 360140 1 C Helmer 120 Undercounter Refrigerator Service Manual 20 2 Helmer THE LIABILITY IF ANY OF HELMER FOR DIRECT DAMAGES WHETHER ARISING FROM A BREACH OF ANY S
27. at least 2 inches 50 mm 360140 1 C 13 2 2 13 3 Horizon Series Models Product Configuration 73 Changing refrigerator setpoint The default setpoint is 4 0 C Change the setpoint if gt Your organization requires a chamber temperature different from 4 0 C gt The normal chamber temperature is too high or low even after completing preventive maintenance and applicable troubleshooting tasks Before changing setpoint confirm gt Refrigerator has been placed per location requirements See operation manual P Preventive maintenance has been completed See operation manual gt Troubleshooting items associated with chamber temperature have been reviewed CAUTION Do not change setpoint to a value outside the temperature control range 1 Determine the new setpoint temperature Determine the change in value to reach the desired setpoint The adjustment will be the difference For example if the desired normal temperature is 4 0 C but the current setpoint is 4 5 C then the difference is 0 5 C The setpoint adjustment value is therefore 0 5 C 3 the monitoring system change to Control mode by pressing and releasing the SEL button until the CONTROL lamp is lit 4 Press and hold the SET button A reference temperature displays which is typically higher than the chamber temperature 5 While holding the SET button press the Up Arrow and Down Arrow buttons as needed to enter the adjustment value det
28. backup power to the monitoring system by removing the battery 360140 1 C Helmer 74 Undercounter Refrigerator Service Manual 3 the back of the refrigerator locate the remote alarm interface 4 Connect the remote alarm wires to the appropriate terminals according to the requirements for your alarm system 5 Using a cable tie secure the wires together for stability as needed o Reconnect the backup power to the monitoring system by reinstalling the battery 7 Switch the AC ON OFF switch ON 13 4 Moving drawers shelves and baskets Storage features availability of shelves drawers and baskets varies by model NOTE Blood bank models HB feature drawers as the standard storage configuration Laboratory pharmacy models HLR feature shelves as the standard storage configuration Any combination of drawers baskets and shelves may be installed A CAUTION p Before moving drawers shelves baskets slides or brackets protect stored items from extended exposure to adverse temperatures gt Before moving drawers be sure they are completely empty for safe lifting To remove a drawer or basket 1 Pull the drawer or basket all the way out until it stops 2 On the right rail locate the release tab and press it downward 3 While holding the right release tab downward locate the release tab on the left rail and press it upward 4 Pull the drawer or basket free of the slides To install a drawer or basket 1 Align the en
29. cartridge 1 Place the cartridge inside the handle aligning the holes in the cartridge with the holes in the handle 2 While holding the cartridge in the handle insert a screw through the upper hole in the handle then through the door latch latch bushings and the cartridge body 360140 1 C Helmer 36 Undercounter Refrigerator Service Manual 3 Hold the handle and cartridge against the door and hand thread the upper screw into the upper hole in the door Latch Nylon latch Upper screw bushing pp Metal latch Install middle bushing Screw here Nylon spacer Install nylon spacer here Lower screw 4 Use needle nose pliers to hold the nylon spacer inside the door handle aligned with the middle hole in the handle Insert a screw through the handle and the spacer and hand thread it into the door 5 Use needle nose pliers to hold the nylon spacer inside the door handle aligned with the ower hole in the handle Insert a screw through the handle and the spacer and hand thread it into the door NOTE Ensure the wires will not be pinched between the handle and the door 6 Tighten all three screws to attach the handle and cartridge to the door 7 Connect the electrical wires from the door to the wires from the cartridge Tuck the excess wiring into the door handle 8 Close the refrigerator door and return the refrigerator to normal operation to provide power to the Access Control lock Connect the refrigerator to outlet power
30. cartridge Left hinged door 400959 1 II Right hinged door 400959 2 B Nylon spacer C Door handle with keyed lock lock functions as manual override 360140 1 C Helmer 48 Undercounter Refrigerator Service Manual 8 3 Rear and underneath 8 3 1 Parts on the rear of the refrigerator A B E J D Rear features schematic El c NN undercounter units two shown B Rearaccesspot doo P imma shown alarm contacts D jPowercomecor PG F jRemotealmmconads PG Eao aaa Power cable with connector North American models A 120 V 120630 230 V 120631 European models 230 V 120156 Condenser probe 400674 1 I J L Compressor 120 V models 800022 1 230 V models 800022 2 M Condenser fan motor 120 V models 120608 230 V models 120609 Helmer 360140 1 C E F L K 8 3 2 i Series Models Parts 49 Label Description Replacement part number Label on schematic Not Caster optional swivel with brake 220467 shown Accessing pull out electrical components tray Undercounter refrigerator access for servicing removal and replacement of the controllers the battery backup system as well as power and other electrical electronic components and switches is available from the front of the refrigerator Using a screwdriver remove the front kick plate just below the lower front panel and just above the leveling feet or optional casters Pull out the components tray loca
31. edge of the door assembly to lift the inner frame 3 Remove the plug from the handle side of the door Set the plug aside 360140 1 C Helmer 82 Undercounter Refrigerator Service Manual 4 Pull the grommet out of the hole in the door and slide the data and Access Control cables out of the slot Slide cable out of slot Pull plug out Pull grommet out Left Remove the inner door with a J hook tool Center Remove the plug on the handle side of the door Right Remove the grommet and data cable from door 5 Re route the data cable inside the door and along the opposite side of the door frame The cable should follow the edge of the door frame as closely as possible Tape the cable to the door frame The excess slack in the cable should be outside of the door Reverse the installation of the Access Control power cable and tape the cable to the door frame Use a hammer and center punch to open the knockout that the Access Control cable will run through Left Original cable routing right hinged door Right New cable routing left hinged door 6 Slide the data cable and grommet through the slot in the door and insert the door side grommet into the hole in the door 7 Reinstall the inner door frame inside the outer door frame Install screws in the unused holes on the door where the hinges had previously been installed Return to chapter 13 8 step 12 and complete the hinge reversal procedur
32. hinge spring and or pin are not damaged Replace hinge lower only if necessary The door is closing but gt Confirm the door gasket seals completely not sealing completely Replace the door gasket if necessary Connections for the door P Test the switch connections Secure the switch are faulty connections if necessary The door switch is gt Replace the door switch faulty The control board is gt Replace control parts with those included in faulty the control and display board kit or replace the monitor control board A component is faulty or Contact Helmer Technical Service internal connections are loose The Door Ajar Timeout Check the current setpoint for the Door is set to zero causing alarm Change the setpoint if necessary the alarm to activate immediately when the door is opened All alarms are activating The alarm system is gt Confirm the circuit board and line connections sporadically faulty are functioning correctly The control board is gt Replace control parts with those included in faulty the control and display board kit or replace the monitor control board A component is faulty or Contact Helmer Technical Service internal connections are loose The compressor is gt Check the condenser grill Clean if needed overheating due to lack Confirm refrigerator location meets of airflow requirements The condenser alarm gt Confirm the alarm setpoint is s
33. power failure alarm should activate immediately causing the audible alarm to sound and the Power Failure alarm message to appear on the Home screen An event is added to the event log indicating a power failure alarm condition Power the refrigerator on by switching the AC ON OFF switch on the electrical box to ON The power failure alarm will clear causing the audible alarm to clear and the Power Failure alarm message to clear from the Home screen An event is added to the event log indicating the power failure alarm condition reset Change the Power Failure Time Delay setting back to the original value 360140 1 C Helmer 64 Undercounter Refrigerator Service Manual 10 3 4 Testing the door open alarm N CAUTION Testing the door open alarm requires the refrigerator door to be left open for an extended period of time which may affect the chamber temperature Before testing the alarm take precautions to protect items in the refrigerator from extended exposure to adverse temperatures 1 Identify the current setting for the Door Open Time delay 2 Change the setting to zero minutes For instructions refer to the i C User Guide 3 Open the refrigerator door The door open alarm should activate immediately causing the audible alarm to sound and the Door Open alarm message to appear on the Home screen An event is added to the event log indicating the door open alarm condition started 4 Close the refrigerator door The door open alarm should
34. routing within the door and under the cabinet refer to subsequent chapters as instructed NOTE The 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 Disassembly procedure 1 Open the lower front control panel on the refrigerator cabinet Switch the ON OFF AC switch OFF Disconnect the refrigerator from outlet power Disable the power failure alarm by switching the backup battery OFF 2 the cabinet remove the four 4 screws holding the kick panel to the cabinet Set the panel aside Kick panel Remove Remove Remove the kick panel and screws 3 Remove the six 6 screws holding the access panel and cover to the cabinet Lay the panel in front of the cabinet ensuring that there is no strain on the power switch wires Remove Remove Access Access panel panel cover Access Access panel cover panel Remove Remove Left Lower access panel cover and left side screws Right Lower access panel cover and right side screws 360140 1 C Helmer 18 Undercounter Refrigerator Service Manual 4 On the access panel pull the plug out of the hole on the handle side of the refrigerator Pull the grommet out of the hole on the hinge side of the refrigerator Slide the braided sleeve out of the slot Pull grommet Pull plug out out Slide sleeve out of slot Left Remove the plug from the access panel Right Remove th
35. screws must be installed in the same location when moving the hinge to the opposite side of the door 9 Support the door and remove the five 5 screws attaching the lower hinge to the door and cabinet Reverse the hinge manually as if moving the hinge from a fully closed position to a fully open position then set the hinge aside 10 Support the door and remove the five 5 screws holding the upper hinge to the door and cabinet Reverse the hinge manually as if moving the hinge from a fully closed to a fully open position then set the hinge aside 360140 1 C Horizon Series Models Product Configuration 79 Door Cabinet Hinge Remove 2 Remove 3 screws long screws short Shim Hinge plate Hinge removal lower hinge shown with spring removed NOTE gt Ensure that the upper and lower hinges not interchanged when moving the hinges to the opposite side of the door gt The lower hinge may include a shim between the hinge and the door If a shim is installed reuse the shim when installing the lower hinge on the opposite side Ifa shim is needed for proper door leveling contact Helmer Technical Service 11 Lay the door face down in front of the cabinet Ensure that there is no strain on the cable s passing from the cabinet to the door Solid doors with Access Control option To complete the hinge reversal refer to chapter 13 9 for instructions in re routing the cables inside the door and under the cabinet Sol
36. spring NOTE To allow easier removal of the door and to prevent damage to the refrigerator it is recommended that a second person assist by supporting the door while the hinges are removed NOTE The two 2 screws holding the hinge to the door are longer than the three 3 screws holding the hinge to the cabinet The door screws must be installed in the same location when moving the hinge to the opposite side of the door 9 Support the door and remove the five 5 screws attaching the lower hinge to the door and cabinet Reverse the hinge manually as if moving the hinge from a fully closed position to a fully open position then set the hinge aside 10 Support the door and remove the five 5 screws holding the upper hinge to the door and cabinet Reverse the hinge manually as if moving the hinge from a fully closed to a fully open position then set the hinge aside Door Cabinet Hinge Remove 2 Remove 3 screws long screws short Shim Hinge plate Hinge removal lower hinge shown with spring removed 360140 1 C Helmer 20 Helmer Undercounter Refrigerator Service Manual NOTE Ensure that the upper and lower hinges are not interchanged when moving the hinges to the opposite side of the door NOTE The lower hinge may include a shim between the hinge and the door Ifa shim is installed reuse the shim when installing the lower hinge on the opposite side If a shim is needed for proper door leveling contact Helmer T
37. strip The refrigerator is shipped with one LED lamp strip installed A replacement LED lamp strip is available from Helmer CAUTION gt Follow all chemical handling and disposal requirements and procedures specified by your organization See chapter 2 Safety gt Replacing lamps requires power disconnection Protect items in the refrigerator from extended exposure to adverse temperatures Disconnect the power Using a screwdriver detach the lamp strip from the chamber Remove the defective lamp strip and disconnect the wires Connect the new lamp strip to the wires Reattach the lamp strip to the chamber OND Connect power to refrigerator and test the new lamp strip Cleaning the refrigerator Condenser grill CAUTION gt Disconnect power to the refrigerator to eliminate the potential of electric shock and injury from surrounding components gt Cleaning the condenser grill requires power disconnection Protect items in the refrigerator from extended exposure to adverse temperatures The condenser grill is the finned surface at the rear of the unit It must be kept clean for proper operation Not cleaning condenser grill regularly significantly reduces refrigerator life expectancy In environments where the refrigerator is exposed to excessive lint or dust condenser grill may need to be cleaned more frequently than stated on the preventive maintenance schedule Clean the condenser grill using a soft brush and a vac
38. temperature probe monitors chamber temperature In addition to using standard probes installed by Helmer external probes may be introduced through the existing rear port and immersed in the existing probe bottle For each probe bottle obtain gt Approximately 4 oz 120 ml of product simulation solution Solution is a 10 1 ratio of water to glycerin Left Probe bottle with temperature probe Right Access port on rear of refrigerator To install an additional external probe through the rear 1 Peel back the putty to expose the port and insert probe through the port into chamber 2 Insert probe into the bottle 3 Replace putty ensuring a tight seal To fill a temperature probe bottle A CAUTION p Clean bottle first as required Helmer gt Temperature probes are fragile handle with care Remove all probes from bottle Remove bottle from bracket and fill with approximately 4 oz 120 ml of product simulation solution Cap tightly to minimize evaporation OND Place bottle in bracket and replace probes immersing at least 2 inches 50 mm in solution 360140 1 C General Information Configuration 7 3 4 Preparing the chart recorder If installed see the Temperature Chart Recorder Operation and Service Manual on CD Complete these tasks to prepare recorder for use gt Installing the backup battery gt Adding paper gt Calibrating the chart recorder to match the chamber temperature 3 4 1 Accessing
39. the chart recorder gt Pull the door open Opening the chart recorder door 2 4 2 Changing chart paper One piece of chart paper records temperatures continuously for seven days For additional information on changing the chart paper see the Temperature Chart Recorder Operation and Service Manual on CD 360140 1 C Helmer 8 Undercounter Refrigerator Service Manual This page left blank intentionally Helmer 360140 1 C Section Il i Series Models 9 Section Il i Series Models 360140 1 C Helmer 10 Undercounter Refrigerator Service Manual This page left blank intentionally Helmer 360140 1 C i Series Models Product Configuration 11 Product Configuration Installing batteries for backup power The monitoring systems and chart recorder each have a battery backup system enabling a period of continuous operation if power is lost NOTE The monitoring systems will start on battery power alone If the refrigerator was previously not connected to AC power and the backup battery is connected or switched on 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 is available for up to 20 hours the Low Battery alarm will activate after approximately 18 hours of battery use Backup power for the temperature chart recorder is available for up to
40. the two caps with holes to receive the spring ends circled D Hex bolt on the hinge housing The spring cap is installed over the hex bolt for right hinged doors The internal hex cap is installed over the hex bolt for left hinged doors E Right hinged orientation spring cap and pin are up and internal hex cap is down When installed the bend in the coil circled must face front 360140 1 C Helmer 88 Undercounter Refrigerator Service Manual 13 13 Installation and pin placement 1 Close the door Reassemble lower left hinge spring assembly on the left side of the door as shown in figure A 2 Orienting the spring cap and bend in the coil outward toward the front Slide the internal hex cap with washer in place into the hinge cavity and over the hex bolt D on the hinge Use a J hook tool to compress the spring to seat the spring cap in the downward position 4 Compress the spring with a J hook tool right hinged door shown 6 With a J hook tool engage the first hole of the spring cap and rotate the cap from left to right and hold Count 4 holes starting from and including the spring cap hole closest to the spring end Insert the pin securely in the 4th hole Rotate the spring using a J hook tool then insert pin right hinged door shown 7 Replace the hinge cover over the spring and pin assembly 8 Test the door to make sure it is level and closes easily and fully Stacking undercounter units A C
41. 0 1 C Schematics HB and HLR models 105 configuration HN 12V DC POWER SUPPLY Option UDIBLE HERA ARM He ALARM KEY SWITCH HA CONTROL MONITOR BOARD HB TEMPERATURE CONTROL PROBE CONTROL lt i RTD MONITOR 1 RTD HC CHAMBER PROBE m 4 HL INTERFACE CABLE I HI DISPLAY BOARD ooo ooo oo 1 202 Door Lock Solenoid Option Horizon Series Models Schematics 113 EXTERIOR NC ALARM BATT DOOR HH MONITOR BATTERY poor swiTc Door Access Keypad Horizon Series Refrigerator HB and HLR 105 models LINE L1 NEUTRAL L2 No CONTACTS M BACKUP DEFROST TIMER DEFROST TIMER 1 SOLID STATE RELAY 1 12V DC POWER SUPPLY TEMP CONTROL XFMR DEFROST TIMER 4 UNIT COOLER FAN CONDENSING UNIT 12V DC POWER SUPPLY TEMP CONTROL XFMR GROUND TERMINAL INTERIOR LIGHT HG LIGHT SWITCH HF Option 230V V15V L I 6 5 4 3 2 1 gerr
42. 00007 1 Door handle with keyed lock lock functions as manual override 360140 1 C Helmer 106 Undercounter Refrigerator Service Manual 17 3 Rear and under 17 3 1 Parts on the rear of the refrigerator schematic El c NN undercounter units two shown Rearaccesspot E o shown alarm contacts Powercomecto PP fame Remote alarm contacts pf Condensate evaporator ay pf Power cable with connector North American models A 120 V 120630 230 V 120631 European models 230 V 120156 F 230 V models 800022 2 i 230 V models 120609 Not Caster optional swivel with brake e shown Helmer 360140 1 C Horizon Series Models Parts 107 17 3 2 Accessing pull out electronic electrical components tray Undercounter refrigerator access for servicing removal and replacement of the controllers the battery backup system as well as power and other electrical electronic components and switches is available from the front of the refrigerator Using a screwdriver remove the front kick plate just below the lower front panel and just above the leveling feet or optional casters Pull out the components tray located to the right Kick plate removed Pull out electrical components tray open 360140 1 C Helmer 108 Undercounter Refrigerator Service Manual 17 3 3 Electrical tray parts Label Description Replacement part number Label on schematic Compressor relay 120426 12 V DC power
43. 11 4 1 Installing batteries for backup 11 4 2 Refrigerator setpoint rn rn rn rake 12 4 3 External monitoring devices i issu vek RR Rr dae Pee ee RA EE 14 4 4 Moving drawers shelves and baskets 1 14 45 Leveling the refrigerator 255 E Ree du Paene rae ene d Ru a 16 4 6 Door characteristics 4 42415 om aa aga dead aspa q E SERRE PRAE 16 4 7 Optional adapter kits for medication dispensing locks 16 4 8 Door hinge and handle reversal all 5 17 4 9 Hinge reversal glass door and solid door 22 4 10 Hinge spring assembly reversal cette 25 4 11 Stacking undercounter units asss Css sus saa q S QD su W aa W uQ Wawa saus Wa 26 5 Temperature Controller lt 27 5 1 Temperature setpoint settings 0 00 cee ete eens 28 5 2 Temperature calibration settings soas cessi 0 ccc tee 29 6 Maintenance enes aa eu aia a asas eS saw cone awk 30 6 1 Recharging refrigerant ee ed ae ped ERI ER ee ERE esq RE ate CERE Rd 30 6 2 Checking the monitoring system backup
44. ALES AGREEMENT BREACH OF WARRANTY NEGLIGENCE OR INDEMNITY STRICT LIABILITY OR OTHER TORT OR OTHERWISE WITH RESPECT TO THE GOODS OR ANY 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 DAMAGES 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 Outside of USA and Canada Consult your local distributor for warranty information 360140 1 C 21 21 1 21 2 Horizon Series Models References and Compliance 121 References and Compliance Alarm reference If an alarm condition is met an alarm activates Some alarms are visual only while others are visual and audible Some alarms are sent through the remote alarm interface The table below indicates if an alarm for a particular model is audible A visual V or sent through the remote alarm interface R CompressorTemperanre gt
45. AUTION For a stacked configuration both units must have leveling feet installed The back brace Helmer bars and front stabilizing brackets must be used When stacking a refrigerator and a freezer always place the freezer on the bottom Call Helmer or your distributor for more information on the stacking kit and on optional ways to secure both units to the wall and or the floor 360140 1 C 14 14 1 14 2 14 3 14 4 14 5 Horizon Series Models Temperature Controller Programs 89 Temperature Controller Programs The refrigerator is shipped from the factory with preset temperature setpoints These setpoints are specific to the refrigerator s intended use These setpoints may be changed depending on organizational requirements NOTE The Control Offset and Control Hysteresis are factory preset and should not be changed Hysteresis The hysteresis band range value is factory preset at 1 0 This value represents each side of the refrigerator setpoint value for a combined total band range value of 2 0 This value should not be changed High alarm setpoint The High Alarm setpoint specifies the activation point of the high temperature alarm The default setting is 5 5 C The setpoint may be changed to a value from 40 0 C to 40 0 C Low alarm setpoint The Low Temp alarm setpoint specifies the activation point of the Low Temperature Alarm The default setting is 1 5 C for blood bank models and 2 0 C f
46. CD w Touch Screen rator LCD Touch Screen EEE Z iH iF Power Cable HELMER INC 400956 1 y USB Data Cable Ethernet Po I 9 y AC in V v 2 I HV Ly L1 EE iE S O I USB Port j il iD 1 4 i zpOX i C3 Power PCBA 2 1 SLA Chorging 5 1 o Tish F iA USB Port 4 i C3 Control PCBA E j 1 iT Battery Switch ads Chamber Temp Probe Cena EG Z C iK d r12V p nr lt a ater Bottle Probe iB MONITOR K BATTERY 3 BACKUP uL HELMER INC ar e 400936 1 m am L1 eo Da era a B M DOOR SWITCH Rar w D N Door Lock Condenso
47. Glycerin solution 400922 1 LED lamp strip 800023 1 3 W NOTE Number of LEDs will vary depending on refrigerator model Monitoring system backup battery One 9 V non rechargeable lithium or equivalent battery 120399 Chart recorder backup battery One 9 V non rechargeable alkaline or equivalent battery 120218 360140 1 C Horizon Series Models Troubleshooting 97 16 Troubleshooting A CAUTION Review all safety instructions prior to completing troubleshooting recommendations See chapter 2 Safety 16 1 General operation problems Possible Cause A drawer or basket does There is debris in the p Pull the drawer or basket out and confirm the not slide easily drawer slides slides are free of debris Clean if necessary The drawer slides are gt Using a lightweight oil lubricate the bearings not lubricated in the slides The drawer or basket is Confirm both slides for the drawer or basket misaligned or not level are mounted at the same height A drawer slide is faulty gt Confirm the slide is operating correctly Replace if necessary A door does not open There is debris in the gt Confirm the hinges are free of debris Clean easily hinges the hinges if necessary A hinge is faulty gt Confirm the hinge spring or pin is not damaged Replace entire hinge lower hinge only if necessary The lower hinge spring Replace the entire lower hinge spring and pin and or pin may be bent assembly or fau
48. ace the defrost timer faulty The chamber The monitor control gt Confirm the temperature controller or monitor temperature does board is faulty control board is operating correctly Replace it not stabilize at the if necessary refrigerator setpoint The condensing unit fan Check the condensing unit fan connections is not running Replace the fan motor if necessary The unit cooler fan is gt Check the voltage to the fan when door switch not running is activated Replace the fan motor or door switch if necessary The compressor motor gt Replace the compressor has seized The temperature control amp Confirm the probe is providing resistance in probe is faulty the range of 98 Q to 110 Q Replace the probe if necessary The refrigerant levelis Check the refrigeration lines for leaks and too low repair them if necessary Check the refrigerant level Recharge the refrigerant if necessary The compressor starting Confirm the relay is operating correctly relay is faulty Replace the relay if necessary The condenser grill is gt Check the condenser grill Clean it if dirty necessary The circulation in the gt Check if there any items that may obstruct chamber is not adequate air flow and remove them if necessary The ambient air gt Confirm refrigerator location meets temperature around the requirements See Operation manual refrigerator is too high A component is faulty or Contact H
49. asured in the unit cooler at the defrost coil sensor by an independent thermometer The Evaporator Defrost Offset value is set at the factory and should not be changed unless directed by Helmer Technical Service Setting Setting description Default value Control Sensor Calibrated temperature of the Varies set at the factory to match temperature control sensor independent calibrated thermometer measured at the evaporator Control Sensor Offset Adjustment value used if the Varies set at the factory difference refrigerator setpoint is not equal between setpoint and temperature to the temperature measured by an measured at the control sensor independent thermometer Upper Temperature Calibrated temperature for the 4 0 C chamber probe Evaporator Defrost Calibrated temperature for the Varies set at the factory to match evaporator defrost probe measured independent calibrated thermometer at the evaporator defrost heater 360140 1 C Helmer 30 Undercounter Refrigerator Service Manual 6 Maintenance A CAUTION See Operation Manual for the preventive maintenance PM schedule 6 1 Recharging refrigerant A CAUTION The procedures in this chapter should only be completed by trained refrigeration technicians who are familiar with the terminology and processes described here as well as with local and organizational regulations regarding refrigerant leaks Use only non CFC R 134A refrigerant The amount of
50. be placed 15 feet from the refrigerator Units may be wall mounted and each includes a battery backup Label Description Replacement part Label on numbers schematic A i C monitoring and control system See subsequent section s for part numbers Temperature chart recorder standard on blood 500612 1 bank model optional on laboratory pharmacy model C Chart paper 52 sheets 220366 Not Chart recorder backup battery 120218 shown 360140 1 C Helmer 46 Undercounter Refrigerator Service Manual 8 1 1 Control system display parts Label Description Replacement part Label on number schematic Interface cable 800010 1 800010 1 Q Display assembly includes touchscreen display 800041 1 I board interface cable speaker NOTE Although the touchscreen and display board may be replaced independently of the i C3 display assembly Helmer recommends replacing the complete assembly Helmer 360140 1 C 8 2 8 2 1 i Series Models Parts 47 Front Lower panel features Label Description Replacement part Label on number schematic A Battery backup switch 120202 B Batteryaccessdoor 1 0 Not Monitoring system backup battery 120628 IB shown C Circuit breakers 230 V models only 230 V 50 Hz 120272 230 V 60 Hz 120288 ON OFF AC power switch 120478 Access Control option Access Control cartridge and door handle Label Description Replacement part Label on number schematic A Access Control
51. cal service needs please contact Helmer at 800 743 5637 or www helmerinc com Be sure to have the model and serial number available 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 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 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 gt Horizon Series model compressor warranty period is five 5 years Parts For a period of two 2 years Helmer will supply at no charge including freight any part that fails due to defects in material or workmanship under normal use with the exception of expendable items Expendable items such as glass filters light bulbs
52. clear causing the audible alarm to clear and the Door Open alarm message to clear from the Home screen An event 1s added to the event log indicating the door open alarm condition reset 5 Change the Door Open Time setting back to the original value 10 4 Upgrading the system firmware Helmer may occasionally issue updates for the i C firmware In the case of updated firmware follow the upgrade instructions included with the firmware update 10 5 Calibrating the touchscreen The 1 C touchscreen has been calibrated at the factory to ensure that when the screen is touched the desired key press is selected If the i C touchscreen or display circuit board is replaced after the refrigerator has been shipped from the factory the touchscreen must be recalibrated If the screen must be recalibrated contact Helmer Technical Service to obtain the calibration file Perform the following procedure to calibrate the touchscreen 1 Insert the flash memory device with the calibration program into the USB port on the i C bezel The flash memory device can be inserted while any screen displayed on the 1 C 2 Waitapproximately 15 to 30 seconds for the calibration file to load 3 When the calibration screen appears remove the flash memory device from the USB port 4 Follow the on screen instructions touching the crosshair icons as they appear on the screen NOTE For accurate calibration results and to avoid damage to the touchscreen touch the cross
53. d guides on the drawer or basket with the slides 2 Gently push the drawer or basket into the chamber until it stops 3 Toensure proper installation pull drawer or basket back out until it stops then push it back in again To remove a shelf 1 With one hand lift the front edge of the shelf from the front brackets 2 With the other hand reach under the shelf and gently bump the rear edge of the shelf upward to disengage it from the rear brackets To install a shelf 1 Insert the shelf into the chamber placing it on the brackets 2 Gently bump the rear edge of the shelf downward to engage it with the rear brackets 3 Test installation by pulling the shelf forward gently The shelf should not disengage from rear brackets Helmer 360140 1 C 13 4 1 13 4 2 13 5 Horizon Series Models Product Configuration 75 Moving slides and brackets To remove a set of slides 1 Using a screwdriver remove the retainers for the front brackets 2 Tap the front brackets upward to disengage them from the standard 3 Remove the slide from the standards To install a set of slides 1 Insert the slides into the appropriate height in the standard 2 the front brackets downward to engage them in the standards 3 Using a screwdriver install the retainers for the front brackets To remove a set of shelf brackets 1 Using a screwdriver remove the retainers for the front brackets 2 the front brackets upward to disengage them f
54. ducts in affected countries When disposing of this product in countries affected by this directive gt Do not dispose of this product as unsorted municipal waste gt Collect this product separately gt Use the collection and return systems available locally For more information on the return recovery or recycling of this product contact your local distributor 360140 1 C Helmer 68 Undercounter Refrigerator Service Manual This page left blank intentionally Helmer 360140 1 C Section Ill Horizon Series Models 69 Section Ill Horizon Series Models 360140 1 C Helmer 70 Undercounter Refrigerator Service Manual This page left blank intentionally Helmer 360140 1 C Horizon Series Models Product Configuration 71 13 Product Configuration 13 1 Installing batteries for backup power The monitoring systems and chart recorder each have a battery backup system enabling a period of continuous operation if power is lost NOTE The monitoring systems will start on battery power alone If the refrigerator was previously not connected to AC power and the backup battery is connected or switched on 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 is available for up to two hours Backup power for the temperature chart recorder is avai
55. e Helmer 360140 1 C 13 10 Horizon Series Models Product Configuration 83 Hinge reversal solid door without Access Control option The undercounter door is comprised of an inner frame and outer frame A A gray data cable B is connected to the display circuit board The cable exits the door at the corner C The length of the cable inside the door is approximately 3 feet and it follows a channel along the top and side of the outer door frame Additional slack has been bundled in the cable D to allow the door hinges to be reversed NOTE The data cable can be re routed without separating the inner and outer door frames Outer door frame right hinged solid door version shown and data cable 1 Remove all remaining screws from both sides of the door assembly 2 Remove the plug from the handle side of the door Set the plug aside 3 Pull the grommet out of the hole in the door and slide the data cable out of the slot Slide cable out of slot Pull plug out Pull grommet out Left Remove the plug on the handle side of the door Right Remove the grommet and data cable from door 360140 1 C Helmer 84 Undercounter Refrigerator Service Manual 4 Gently pull enough data cable out of the door through the channel running along the bottom of the door in order to route it to the opposite side Route the cable back into the channel along the bottom of the door toward the new hinge location
56. e The temperature probe Check the continuity of the probe wiring wiring is an open circuit Replace the probe if necessary The probe bottle is gt Check the level of product simulation solution empty or the amount of in the bottle Clean and refill the bottle if solution is too low necessary Digital electronics are gt Reset the monitoring system locked because of an interruption in power The monitor is not gt Confirm the temperature probe is reading calibrated correctly Calibrate the chamber probe if necessary The chamber The temperature alarm gt Check the current setpoints for the temperature temperature meets an setpoint was changed alarms Change the setpoints if necessary alarm condition but the appropriate temperature alarm is not active The compressor runs The refrigerator setpoint Confirm the setpoint is set within the operating continuously is set too low range and change it if necessary The temperature controller gt Confirm the temperature controller or monitor is faulty control board is operating correctly Replace it if necessary The compressor starting Confirm the relay is operating correctly relay is faulty Replace the relay if necessary 360140 1 C Helmer 40 Undercounter Refrigerator Service Manual Possible Cause The chamber The temperature controller gt Confirm the temperature controller or monitor temperature does is faulty control board is operating co
57. e compressor is Check the condenser grill Clean if needed overheating due to lack Confirm refrigerator location meets of airflow requirements The refrigerant level is Check refrigeration lines for leaks and repair too low if necessary Check the refrigerant level Recharge refrigerant if necessary The condenser probe is Contact a qualified service technician to not calibrated confirm the condenser probe is reading correctly and to calibrate the probe if necessary An alarm activated but The temperature No action needed the temperature recorded changed slightly around at activation does the time of activation not match the alarm setpoint 360140 1 C Helmer 102 Undercounter Refrigerator Service Manual 16 4 Condensation problems Possible Cause There is excessive water Humid air is entering the Confirm the refrigerator is level and the in the water evaporation door is aligned closing tightly and sealing tray inside the lower correctly Correct issues as necessary compartment in the back of the unit There is excessive water Humid air is entering the Confirm the refrigerator is level and the in the chamber chamber door is aligned closing tightly and sealing correctly Correct issues as necessary The connection between gt Confirm the connection is secure Tighten the the unit cooler and the connection if necessary drain tube is loose The defrost timer bypass Check the defrost
58. e ear eck ek nad Rc magn ea e S ass a ete 106 17 4 Behind the side access panel 109 175 IMENO s l eder de enh RM wanted darned dad s 109 1 6 Doorand hinge parts sd ERES RE bla rretadeeh eb besa ee gies SR EE SA 112 18 SchematicS uocecsoscatzbeocraqGGeTaSUress a pee SOS Peg 113 18 1 HB and HLR models 105 ees 113 Ec up cep CP EE NE pim maa sa aa 114 19 1 Touring the monitoring and control system 114 19 2 Viewing current settings lile Re rs 115 19 3 Changing Settings 4 xad x Sasam aaa xu eee ERR ERE deed ak E 116 19 4 Testngalarms zi ssepe ERR ER hx Res QD a 6 Rc OH EE ERES GE MER 117 20 Waranty qa aaa sm sa RARE sus as s DEAE 119 20 1 Rel i Product Warranty USA and 119 20 2 Outside of USA and Canada Qn a ene 120 21 References and 121 213 Alarm reference vs acto ead cai RENE NM egene Band GERI Bedwas 121 21 2 Energy conservation and regulatory 121 360140 1 C Helmer iv Undercounter Refrigerator Service Manual This page left blank intentionally
59. e grommet and braided sleeve or data cable from the access panel 5 Cut the zip tie holding the power and communication cables and Access Control cable if equipped inside the cabinet Cut zip tie Cut zip tie securing cable s inside cabinet 6 Without Access Control option Remove the four 4 screws holding the door handle assembly to the door and set the assembly aside With Access Control option Remove the three 3 screws holding the door handle assembly to the door Separate the spade connectors for the Access Control lock and set the assembly aside Remove Left Door handle assembly without Access Control option Right Door handle assembly with Access Control option Helmer 360140 1 C i Series Models Product Configuration 19 7 Without Access Control option Remove the two 2 screws holding the door latch plates and spacer bar from the cabinet and set the assembly aside With Access Control option Remove the two 2 screws holding the door catch to the cabinet and set the catch aside Cabinet Cabinet trike plat Door catch SUNE Bite Remove 2 screws Remove 2 screws Left Door latch plates models without Access Control option Right Door catch models with Access Control option 8 With the door shut remove the cover plate from both hinges Remove the spring and pin hardware from the lower hinge and set aside Refer to chapter 4 10 Hinge spring assembly removal for instruction in removing the
60. echnical Service 11 Lay the door face down in front of the cabinet Ensure that there is no strain on the cable s passing from the cabinet to the door To complete the hinge reversal refer to chapter 4 9 Hinge reversal for instructions in re routing the cable s inside the door and under the cabinet Assembly procedure 12 Install the hinges and hinge plates on the door leaving the two 2 screws slightly loose 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 Door Hinge gt 2 screws long Hinge plate Shim Hinge installation to door lower hinge shown NOTE To allow easier installation of the door and to prevent damage to the refrigerator it is recommended that a second person assist by supporting the door while the door is reinstalled 13 Lift the door to the front of the cabinet aligning the holes in the hinges with the corresponding holes in the cabinet Loosely install three 3 screws in each hinge to attach the hinges to the cabinet Do not allow the weight of the door to rest on the hinges Cabinet Hinge 3 screws lt short Hinge installation to cabinet lower hinge shown 360140 1 C 14 15 i Series Models Product Configuration 21 Adjust the alignment of the door so the top edge of the door is level While maintaining alignment
61. el Right Product Specification label located on the rear at lower left Description Model REF Serial number SN Version Power requirements Identifying the control system 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 Model group Control system 1 105 and iLR105 monitoring and control system HB105 and HLR105 Horizon Series monitoring and control system i C control system i Series refrigerators are equipped with the i C monitoring and control system The i C system combines temperature control and monitoring into a single interface displaying multiple information logs with historical information in full color The touchscreen monitor located on the refrigerator door displays operational information The chamber temperature controller is integrated into the 1 C system i C monitoring and control system display 360140 1 C Helmer 6 Undercounter Refrigerator Service Manual 3 2 2 3 3 Horizon Series control system Horizon Series refrigerators feature the Horizon combined monitor and temperature controller The Horizon Series system controls chamber temperature and monitors and displays operational information The user interface for this system is located on the refrigerator door Horizon Series monitoring and control system display Preparing the temperature probe The
62. elmer Technical Service internal connections are loose Helmer 360140 1 C Horizon Series Models Troubleshooting 99 16 3 Alarm activation problems Possible Cause The refrigerator is in The alarm system is gt Confirm the circuit board and line connections an alarm condition but faulty are functioning correctly alarms are not audible The monitor control P Replace control parts with those included in board is faulty the control and display board kit or replace the monitor control board The alarm buzzer is gt Replace the alarm buzzer faulty A component is faulty or Contact Helmer Technical Service internal connections are loose Alarm Disable key is in Turn the Alarm Disable key to the ON the OFF position position Audible alarms are P Verify that audible alarms not muted muted The refrigerator meets The monitor control gt Replace control parts with those included in an alarm condition but board is faulty the control and display board kit or replace the the appropriate alarm is monitor control board not active The alarm setpoint was Check the current setpoints for the alarms changed A component is faulty or Contact Helmer Technical Service internal connections are loose The High Temperature Connections for the P Test the chamber temperature probe alarm activates when chamber temperature connections Secure the connections if the door is opened then
63. embly to the door and set the assembly aside With Access Control option Remove the three 3 screws holding the door handle assembly to the door Separate the spade connectors for the Access Control lock and set the assembly aside 360140 1 C Helmer 78 Undercounter Refrigerator Service Manual Helmer Remove Left Door handle assembly without Access Control option Right Door handle assembly with Access Control option 7 Without Access Control option Remove the two 2 screws holding the door latch plates and spacer bar from the cabinet and set the assembly aside With Access Control option Remove the two 2 screws holding the door catch to the cabinet and set the catch aside Cabinet Cabinet trike plat Door catch Me Remove 2 screws Remove lt 2 screws Left Door latch plates models without Access Control option Right Door catch models with Access Control option 8 With the door shut remove the cover plate from both hinges Remove the spring and pin hardware from the lower hinge and set aside Refer to chapter 13 12 Hinge spring assembly reversal for instruction in removing the spring NOTE To allow easier removal of the door and to prevent damage to the refrigerator it is recommended that a second person assist by supporting the door while the hinges are removed NOTE The two 2 screws holding the hinge to the door are longer than the three 3 screws holding the hinge to the cabinet The door
64. er bleach solution Fill with approximately 4 oz 120 ml of product simulation solution Cap tightly to minimize evaporation a N Place bottle in bracket and replace probes immersing at least 2 inches 50 mm in solution Removing and installing the unit cooler cover The unit cooler cover has a port to drain condensation generated in the cooling process If the unit cooler cover is not removed correctly the drain port may be damaged Improper drainage may result in excessive icing in the refrigerator and the refrigerator s inability to maintain the temperature setpoint This drain port fits into a piece of vinyl tubing that directs the condensate into the J shaped drain line on the rear of the refrigerator Before removing the unit cooler cover first remove the vinyl tubing The following is required to remove and reinstall the unit cooler cover gt 5 16 socket wrench gt Tool to push putty away from the tubing Unit cooler features Left Unit cooler A with drain port Right Drain tubing 360140 1 C Horizon Series Models Maintenance 93 To remove the unit cooler cover 1 In the lower front control panel switch the AC ON OFF switch OFF Disconnect the refrigerator from outlet power as well Disable the power failure alarm by disconnecting the backup battery Peel the putty back to expose the vinyl tube inside the chamber The putty may be hardened from exposure to cold temperature allo
65. erature on the monitor slowly add warm water so the temperature increases 0 5 C per minute When the temperature reaches the high alarm setpoint an alarm sounds and the temperature reading turns red An event is added to the event log indicating the high temperature alarm was started The test is complete Note the temperature on the independent thermometer when the alarm was triggered Remove the thermometer and probe from the water and remove the tape from them Place the probe in the bottle immersing it at least 2 inches 50 mm in the solution Compare each recorded thermometer value to its corresponding setpoint If the values do not match see chapter 7 Troubleshooting for information on how to proceed Testing the power failure alarm CAUTION Testing the power failure alarm requires that power be disconnected from the refrigerator which may affect the chamber temperature Before testing the alarm take precautions to protect items in the refrigerator from extended exposure to adverse temperatures Test the power failure alarm to ensure it activates at the appropriate time During a power failure the backup battery continues to provide power to the monitoring system 1 2 3 Identify the current setting for the Power Failure Time Delay Change the setting to zero minutes For instructions refer to the i C User Guide Disconnect the refrigerator from power by switching the AC ON OFF switch on the electrical box to OFF The
66. erature reading turns red and an event is added to the Event Log indicating the high temperature alarm was initiated o When completed the message Test Complete appears at the right side of the screen N View the Event Log by touching Home i C APPS Information Logs Event Log Touch the event to view the Event Log Detail screen 8 Observe the temperature at the time of the high temperature alarm event Compare this value to the alarm setpoint If the values do not match refer to chapter 7 Troubleshooting for information on how to proceed NOTE If the temperature alarm test does not automatically complete within two minutes restart the i C monitoring system To cancel an automatic test in progress 1 Touch Home i C APPS Temperature Alarm Test 2 Touch the Cancel Test button The test is cancelled Testing temperature alarms manually CAUTION The door must be left open during testing which may affect the chamber temperature Before testing the alarms manually take precautions to protect items in the refrigerator from extended exposure to adverse temperatures Complete the low alarm test before the high alarm test in order to control the temperature more easily and complete the testing more quickly Obtain gt An independent thermometer calibrated and traceable per national standards P This is used to secure the probe to the thermometer gt One 8 oz 250 ml glass half full of chilled water This
67. ermined in step 2 The button increments are 0 1 C 6 When finished release all buttons The setpoint is changed 7 Return to Monitor mode by pressing and releasing the SEL button until the MONITOR lamp is lit External monitoring devices CAUTION gt Do not connect any monitoring device that exceeds the maximum load capacity for your model gt 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 gt Ifan external power supply exceeding 33 V r m s or 70 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 The refrigerator provides a remote alarm interface to send information to external devices such as the Helmer Remote Alarm Monitoring System For more information and availability contact Helmer or your local distributor The remote alarm interface is a relay switch with three terminals Common COM Normally Open NO and Normally Closed NC These terminals are dry contacts and do not supply voltage The interface circuit is either normally open or normally closed depending on which terminals are used The requirements for your alarm system determine which wires must connect to which terminals To connect to the remote alarm interface 1 Switch the AC ON OFF switch OFF 2 Disconnect the
68. et at the setpoint is too low expected or correct value The refrigerant level 15 Check refrigeration lines for leaks and repair too low if necessary Check the refrigerant level Recharge refrigerant if necessary The condenser probe 15 Contact a qualified service technician to not calibrated confirm the condenser probe is reading correctly and to calibrate the probe if necessary Helmer 360140 1 C i Series Models Troubleshooting 43 Possible Cause The condenser alarm is Refrigerant level is too Check refrigeration lines for leaks and repair active low if needed Check refrigerant level Recharge if low Connections for the P Test the probe connections Secure the condenser temperature connections if necessary probe are loose Condenser temperature P Test the probe Replace the probe if necessary probe is faulty Condenser fins are dirty Clean as necessary or order new ones from Helmer or your distributor Condenser probe is not amp Confirm the condenser probe is reading calibrated correctly Calibrate the probe if necessary An alarm activated but The monitor settings are Confirm the temperature probe is reading the temperature recorded not calibrated correctly Calibrate the probe if necessary at activation does The temperature P action needed not match the alarm changed slightly around setpoint the time of activation The No Battery alarm is The batte
69. figured at the factory The settings listed below are set at the factory and may be changed at the direction of Helmer Technical Service Setting Description Light Icon Toggle the light icon on or off Temperature Controller Page Enable or disable the temperature controller screen Through the 1 C monitoring system the current settings may be viewed and changed The factory settings can be changed through the same screen that they are viewed in Contact Helmer Technical Service to verify if changing factory settings is necessary and for instructions in accessing the factory settings page NOTE The Lower Probe and Lower Probe Alarm settings are not available on undercounter refrigerator models Testing alarms Test the alarms to ensure they are working correctly The refrigerator has alarms that indicate if the chamber temperature becomes too high or too low Test these alarms using the built in Peltier device The Peltier device physically heats or cools the temperature probe it is unnecessary to insert the probe in chilled or warm water This automatic method does not affect the chamber temperature The alarms may also be tested by placing the temperature probe in chilled or warm water and noting the displayed temperature at which the alarm activates 360140 1 C 10 3 1 i Series Models Settings 61 Testing temperature alarms automatically Test Complete 4 0 C W Alarm Conditien Low Alarm Test Cance
70. gerator s inability to maintain the temperature setpoint This drain port fits into a piece of vinyl tubing that directs the condensate into the J shaped drain line on the rear of the refrigerator Before removing the unit cooler cover first remove the vinyl tubing The following is required to remove and reinstall the unit cooler cover gt 5 16 socket wrench gt Tool to push putty away from the tubing Unit cooler features Left Unit cooler A with drain port B Right Drain tubing C To remove the unit cooler cover 1 In the lower front control panel switch the AC ON OFF switch to OFF Disconnect the refrigerator from outlet power as well Disable the power failure alarm by switching the backup battery OFF 2 Peel the putty back to expose the vinyl tube inside the chamber The putty may be hardened from exposure to cold temperature allow enough time for the putty to soften 3 Remove the vinyl tube by pulling it downward to separate it from the unit cooler Twisting the tube somewhat makes it easier to pull The drain port on the unit cooler should now be visible 4 Push the excess slack in the tubing out through the hole in the rear of the chamber a Remove the top drawer basket or shelf from the chamber 6 While holding the unit cooler cover in place to prevent it from dropping use the socket wrench to remove the four screws securing the cover to the unit cooler Gently lower the cover to avoid damaging the unit coo
71. hairs with the eraser end of a pencil 5 After all crosshairs have been touched the 1 C will reboot and display the language screen NOTE If the screen was unintentionally touched outside of any of the crosshair icons during calibration the screen may be recalibrated using the process outlined above 10 6 Viewing manufacturer and product information View version information for contacting Helmer 1 From the Home screen touch i C APPS Contact Helmer 2 The manufacturer contact information appears 3 software version appears Helmer 360140 1 C 11 11 1 11 1 1 11 1 2 11 1 3 11 1 4 11 1 5 i Series Models Warranty 65 Warranty Rel i Product Warranty USA and Canada For technical service needs please contact Helmer at 800 743 5637 or www helmerinc com Be sure to have the model and serial number available 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 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
72. he cables towards the door Slide the braided sleeve through the slot in the door and insert the door side grommet into the hole in the door Install new zip ties to prevent the braided sleeve from moving along the cables Braided sleeve detail 7 Reinstall the inner door frame inside the outer door frame Install screws in the unused holes on the door where the hinges had previously been installed Return to chapter 4 8 step 12 and complete the hinge reversal procedure Helmer 360140 1 C 4 10 i Series Models Product Configuration 25 Hinge spring assembly reversal Once the lower hinge spring assembly has been removed it must be reinstalled on the other side of the door inverted 180 degrees from original Factory installed hinges are on the right side of the refrigerator when facing the unit This procedure assumes the lower hinge spring assembly is being moved to the left side Overview An undercounter refrigerator has an upper and lower hinge set The lower hinge consists of a hinge a cover plate and a self closing hinge spring assembly shown below Referring to the following photographs gt The hinge spring assembly A is shown as a complete assembly gt The spring assembly B consists of a bushing a spring cap a pin a spring an internal hex cap and a washer The spring coil is bent to form a pin at each end B circled The spring cap has 5 holes and a rod B The internal hex cap has a he
73. hermometer and probe from the bottle and remove tape Replace bottle cap ensuring a tight fit oN OO Place probes in bottle immersing at least 2 inches 50 mm 360140 1 C 4 2 2 i Series Models Product Configuration 13 Changing refrigerator setpoint The default setpoint is 4 0 C Change the setpoint if gt Your organization requires a chamber temperature different from 4 0 gt The normal chamber temperature 15 too high or low even after completing preventive maintenance and applicable troubleshooting tasks Before changing setpoint confirm gt Refrigerator has been placed per location requirements See Operation manual gt Preventive maintenance has been completed See Operation manual gt Troubleshooting items associated with chamber temperature have been reviewed The temperature controller is integrated into the 1 C monitoring and control system The temperature setpoint is configured through the 1 C screen CAUTION Do not change setpoint to a value outside the temperature control range 1 Determine the new setpoint temperature Determine the change in value to reach the desired setpoint The adjustment should be about half of the difference between the current setpoint and the new setpoint For example if the desired normal temperature is 4 0 C but the current setpoint is 4 5 C then the difference is 0 5 C and the setpoint adjustment value would be approximately 0 3 C 3 On the i C
74. holds the water used to measure the temperature P One glass filled with crushed ice This is used to cool the water P One 8 oz 250 ml glass half full of warm water This is used to heat the water A CAUTION Temperature probes are fragile Handle them with care Helmer 1 Identify the current settings for the low alarm setpoint and high alarm setpoint 2 Remove the chamber temperature probe from the probe bottle 3 the temperature probe to the thermometer and immerse them in the glass of chilled water so their ends are toward the bottom of the glass 360140 1 C 10 3 3 ON i Series Models Settings 63 Activate the Low Temperature Alarm with this method While constantly stirring the thermometer and probe in the chilled water and watching the temperature on the monitor slowly add ice so the temperature decreases 0 5 C per minute This is approximately teaspoon 5 ml of ice every 15 to 25 seconds Be sure to keep the end of the thermometer and probe in the lower liquid and not in the upper ice When the temperature reaches the low alarm setpoint an alarm sounds and the temperature reading turns red An event is added to the event log indicating the low temperature alarm was started Note the temperature on the independent thermometer when the alarm was triggered Activate the High Temperature Alarm with this method While constantly stirring the thermometer and probe in the chilled water and watching the temp
75. ia CES Op ati Re CT ERROR e G8 tad 51 8 5 PETIT 51 8 6 Door and hinge parts esas dye X see oh BR Ke KA Re dee RE 54 ee oe ee eee dd au 55 9 1 iB and iLR models 105 configuration 000 ee ss 55 10 Setting e Inr 57 10 1 Navigating the Home screen sss e ahh EEEREN sumi hh hs 57 10 2 Viewing and changing settings iliis n 58 10 9 Testrig alarms ovem deed d wears tite are USAGE ERE ota X Y da UR E ROME EC G 60 10 4 Upgrading the system firmware llle m 64 10 5 Calibrating the touchscreen siis uus Re VA aaa sasa ee RR ee S ERR RR 64 10 6 Viewing manufacturer and product 64 11 Warranty 1 crm 65 11 1 Rel i Product Warranty USA and Canada 65 11 2 Outside of USA and Canada avavavv vnr rn rn vern knr rn nn rn nn 66 12 References and Compliance eee ees 67 12 1 AlarmireferencG isses dee dG eas anata du SG sd ea 67 12 2 Energy conservation and regulatory 67 Section Ill Horizon Series 69 13 Product esas noe 1681 Bde tete hc een 71 13 1 Installing batteries for backup
76. id doors without Access Control option To complete the hinge reversal refer to chapter 13 10 for instructions in re routing the cable inside the door and under the cabinet Glass doors with or without Access Control option To complete the hinge reversal refer to chapter 13 11 for instructions in re routing the cable s inside the door and under the cabinet Assembly procedure 12 Install the hinges and hinge plates on the door leaving the two 2 screws slightly loose 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 Door Hinge gt 2 screws long Hinge plate Shim Hinge installation to door lower hinge shown NOTE To allow easier installation of the door and to prevent damage to the refrigerator it is recommended that a second person assist by supporting the door while the door is reinstalled 360140 1 C Helmer 80 Undercounter Refrigerator Service Manual Helmer 13 Lift the door to the front of the cabinet aligning the holes in the hinges with the corresponding holes in the cabinet Loosely install three 3 screws in each hinge to attach the hinges to the cabinet Do not allow the weight of the door to rest on the hinges Cabinet Hinge 3 screws lt short Hinge installation to cabinet lower hinge shown 14 Adjust the alignment of the doo
77. iple loaded drawers at the same time Before moving unit ensure casters are free of debris Avoid removing electrical service panels and access panels unless so instructed Use supplied power cords only Notify appropriate safety personnel when handling or disposing of materials that are infectious toxic pathological radioactive or otherwise biologically or environmentally harmful A CAUTION Decontaminate parts prior to sending for service or repair Items not decontaminated appropriately will not be accepted Documentation stating contents are not contaminated and are safe to handle must accompany returns Contact Helmer or your distributor for decontamination instructions and a Return Authorization Number Helmer 360140 1 C 3 2 3 2 1 General Information Configuration 5 Configuration Finding model and input power information Service information varies depending on the model and input power requirements This information appears on the Product Specification label located on the rear of the refrigerator The model also appears on a label located in the chamber on the upper side of the right wall ILR105 000000 ILR105 SN 000000 a Helmer www helmerinc com OUT Version A Noblesville IN USA Laboratory Refrigerator Version A Voltage 115 D Weight 200 Ib 75 kg HZ 60 69 Amps 5A Certified UL 61010 1 CSA 61010 1 www helmerinc com Left Chamber lab
78. itch OFF Disconnect the refrigerator from outlet power Disable the power failure alarm by disconnecting the backup battery 2 the cabinet remove the four 4 screws holding the kick panel to the cabinet Set the panel aside Kick panel Remove Remove Remove the kick panel and screws Helmer 360140 1 C Horizon Series Models Product Configuration 77 3 Remove the six 6 screws holding the access panel and cover to the cabinet Lay the panel in front of the cabinet ensuring that there is no strain on the power switch wires Remove Remove Access Access panel panel cover Access Access panel cover panel Remove Remove Left Lower access panel cover and left side screws Right Lower access panel cover and right side screws 4 On the access panel pull the plug out of the hole on the handle side of the refrigerator Pull the grommet out of the hole on the hinge side of the refrigerator Slide the data cable and Access Control cable if equipped out of the slot Pull grommet Pull plug out out Slide sleeve out of slot Left Remove the plug from the access panel Right Remove the grommet and braided sleeve or data cable from the access panel 5 Cut the zip tie holding the data cable and Access Control cable if equipped inside the cabinet Cut zip tie Cut zip tie securing cable s inside cabinet 6 Without Access Control option Remove the four 4 screws holding the door handle ass
79. l Test e Alarm test screen on the monitoring system NOTE The automatic test can be aborted at any time by touching the Cancel Test button When performing an automatic low alarm test the Peltier device cools the probe until the low alarm setpoint is reached An event is added to the Event Log indicating the low temperature alarm was initiated The Alarm Test icon is displayed on the Temperature Graph indicating the change in temperature was test induced When completed the message Test Complete appears at the right side of the screen The test process takes less than five minutes When performing an automatic high alarm test the Peltier device heats the probe until the high alarm setpoint is reached An event is added to the Event Log indicating the low temperature alarm was initiated The Alarm Test icon is displayed on the Temperature Graph indicating the change in temperature was test induced When completed the message Test Complete appears at the right side of the screen The test process takes less than five minutes 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 To automatically test the low temperature alarm Identify the current setting for the low alarm setpoint Touch Home i C APPS Temperature Alarm Test The Temperature Alarm Test screen is displayed
80. lable for up to 14 hours A CAUTION p Before installing or replacing batteries disconnect power to the refrigerator gt When installing a replacement battery for the monitoring system use only a battery which meets the specifications outlined in chapter 15 8 Supplies 13 1 2 Monitoring system battery installation The the battery is located below the chamber behind the front cover The battery holder is located behind an access panel Monitoring system backup battery The type of battery for the monitoring system varies by model Models Monitoring system Battery requirements HB105 and HLR105 Combined alarm monitoring One non rechargeable 9 V control system lithium or equivalent battery Monitoring system battery is included in the literature box Install and connect the battery to provide monitoring system with backup power in the event of AC power failure 360140 1 C Helmer 72 Undercounter Refrigerator Service Manual 13 2 13 2 1 Helmer Refrigerator setpoint configuration The temperature controller adjusts chamber temperature around the refrigerator setpoint The controller activates the compressor when the chamber probe registers temperature above the setpoint The controller also senses unit cooler temperature through a probe in the cooler The temperature in the unit cooler typically varies from the temperature in the chamber so an offset value is used in the control system The unit coole
81. ler fan wiring 360140 1 C Helmer 34 Undercounter Refrigerator Service Manual 6 6 To reinstall the unit cooler cover 1 2 In the chamber verify the wiring for the unit cooler fan is connected and routed correctly Reinstall the unit cooler fan cover Lift the unit cooler cover into place making sure the front of the cover is behind the lip on the unit cooler Using the socket wrench tighten the screws to secure the cover in place Make sure the screws are tight enough so the unit cooler does not move when bumped If the unit cooler is not tightly in place the tubing will be more difficult to install On the rear insert the vinyl tube through the hole in the refrigerator Push the tube upward at an angle so the end slides over the drain port In the chamber the drain port should be completely covered by the tube In the chamber press the putty around the vinyl tube and partially into the hole to ensure a tight seal Return the refrigerator to normal operation Connect the refrigerator to outlet power and switch the AC ON OFF switch ON Switch the backup battery ON Removing and replacing the Access Control cartridge The Access Control lock cartridge is a serviceable part and may be replaced if necessary The lock cartridge is an assembly that is installed in the door handle of the refrigerator N CAUTION gt Review all safety instructions prior to replacing the Access Control cartridge See Helmer chapter 2 Safety
82. lide the data and Access Control cables out of the slot Slide cable out of slot Pull plug out Pull grommet out Left Remove the inner door with a J hook tool Center Remove the plug on the handle side of the door Right Remove the grommet and data cable from door 360140 1 C Helmer 86 Undercounter Refrigerator Service Manual 5 Re route the data cable inside the door and along the opposite side of the door frame The cable should follow the edge of the door frame as closely as possible Tape the cable to the door frame The excess slack in the cable should be outside of the door If the refrigerator is equipped with the Access Control option reverse the installation of the Access Control power cable and tape the cable to the door frame Use a hammer and center punch to open the knockout that the Access Control cable will run through Left Original cable routing right hinged door Right New cable routing left hinged door 6 Slide the data cable and grommet through the slot in the door and insert the door side grommet into the hole in the door 7 Reinstall the inner door frame inside the outer door frame Install screws in the unused holes on the door where the hinges had previously been installed Return to chapter 13 8 step 12 and complete the hinge reversal procedure Helmer 360140 1 C 13 12 Horizon Series Models Product Configuration 87 Hinge spring asse
83. ll compressor cycle 3 At the end of the next cycle before the compressor stops measure the pressure The pressure varies depending on the ambient air temperature The low side pressure should be 16 Ib in to 18 Ib in 110 kPa to 125 kPa 4 Addrefrigerant so the pressure is within the acceptable range Checking the monitoring system backup battery CAUTION Checking the monitoring system backup battery requires that power be disconnected from the refrigerator which may affect the chamber temperature Before testing the alarm take precautions to protect items in the refrigerator from extended exposure to adverse temperatures The monitoring system does not have visual indicators for the status of the backup battery Regularly test whether the backup battery is functioning and replace it if the test fails or if the battery has been in use for one year Test whether the backup battery is functioning 1 Disconnect the refrigerator from AC power by disconnecting the AC power cord from the wall outlet or by switching the AC ON OFF switch OFF The display should continue to display information If the display is blank replace the battery 2 Re connect the refrigerator to AC power CAUTION When installing a replacement battery for the monitoring system use only a battery which meets the specifications outlined in chapter 15 8 Supplies Helmer 360140 1 C 15 4 15 5 Horizon Series Models Maintenance 91 Replacing the LED lamp
84. lty 16 2 Chamber temperature problems Possible Cause Frob appears on The connections for the Test the chamber probe connections Secure display but chamber chamber temperature the connections if necessary temperature is set probe are loose Calibrate the probe if necessary correctly The chamber Check the continuity of the chamber temperature probe probe wiring and connections Secure the wiring is an open circuit connections or replace the probe if necessary The chamber The temperature alarm Check the current setpoints for the temperature temperature meets an setpoint was changed alarms Change the setpoints if necessary alarm condition but the appropriate temperature alarm is not active 360140 1 C Helmer 98 Undercounter Refrigerator Service Manual Possible Cause The compressor runs The refrigerator setpoint gt Confirm the setpoint is set within the operating continuously is set too low range and change it if necessary The temperature control Confirm the unit cooler probe is providing probe in the unit cooler resistance in the range of 98 Q to 110 is faulty Replace the probe if necessary The monitor control gt Confirm the temperature controller or monitor board is faulty control board is operating correctly Replace it if necessary The compressor starting gt Confirm the relay is operating correctly relay is faulty Replace the relay if necessary The defrost timer is gt Repl
85. mbly reversal Once the lower hinge spring assembly has been removed it must be reinstalled on the other side of the door inverted 180 degrees from original Factory installed hinges are on the right side of the refrigerator when facing the unit This procedure assumes the lower hinge spring assembly is being moved to the left side Overview An undercounter refrigerator has an upper and lower hinge set The lower hinge consists of a hinge a cover plate and a self closing hinge spring assembly shown below Referring to the following photographs gt The hinge spring assembly A is shown as a complete assembly gt The spring assembly B consists of a bushing a spring cap a pin a spring an internal hex cap and a washer The spring coil is bent to form a pin at each end B circled The spring cap has 5 holes and a rod B The internal hex cap has a hexagonal configuration on the inside and no holes outside B Both spring caps have a small hole C circled Each hole receives an end of the spring coil The bushing is placed on the spring cap B v v v v v y The washer is placed on the internal hex cap B Bushing Spring cap Pin Spring Internal hex cap Spring Hinge photograph detail A Lefi hinged orientation spring cap and pin are down and internal hex cap is up When installed the bend in the coil circled must face front B The 6 pieces comprising the spring assembly C Underside of
86. mperature Alarm Time Delay Low Temperature Alarm Setpoint Low Temperature Alarm Time Delay Power Failure Alarm Time Delay Probe Failure Alarm Time Delay Door Open Time Alarm Time Delay Compressor Temperature Alarm Setpoint Compressor Temperature Alarm Time Delay Chamber Setpoint Chamber Hysteresis Is restored to this value 1 C APPS Temperature Alarm Test Temperature Graph Information Logs Download High 3 symbols Values previously entered during setup Serial number entered at factory MM DD YYYY Not affected maintained in real time clock Not affected maintained in real time clock 360140 1 C Helmer 60 Undercounter Refrigerator Service Manual Additional defaults for laboratory and pharmacy models 10 2 4 10 2 5 10 3 Helmer This includes laboratory pharmacy iLR models that were originally set at 2 0 C NOTE Defrost event settings are only applicable to laboratory pharmacy iLR refrigerators 1 Touch Home i C APPS Settings Restore Factory Settings 2 A Are you sure you want to restore factory settings message appears Do one of the following gt restore the factory default settings touch the Yes button The message screen closes and the settings are saved gt cancel restoring factory default settings touch the No button The message screen closes and the settings are not saved Changing factory settings Several of the refrigerator operating parameters are con
87. mperature calibration setting is saved NOTE Shortly after saving the new temperature value the displayed temperature may change so it no longer matches the new value This is normal 3 Replace the probes in the probe bottle a Remove the thermometer and probe from the bottle and remove the tape from them b Screw the cap on the bottle ensuring it fits tightly to minimize evaporation C Place the probes in the bottle immersing them at least 2 inches 50 mm in the solution Helmer 360140 1 C 10 2 2 10 2 3 i Series Models Settings 59 Calibrating the compressor and evaporator probe To ensure the refrigerator maintains the correct temperature the compressor and evaporator temperature probes have been calibrated at the factory Changing the calibration settings for the compressor or evaporator probe is not typically necessary and should not be performed unless directed to do so by Helmer Technical Service Restoring factory defaults The settings listed below may be simultaneously changed to the factory default value This setting Home Screen Application Icons Display Brightness Password for Settings screen Sounds Alarm Tone Temperature Calibration Values Unit ID ay Month Year Time Format Minute Hour AM PM Language Temperature Units Password Protection for Settings screen Temperature Graph Screensaver Access Control as Home Page Light Off Delay on off High Temperature Alarm Setpoint High Te
88. n View current readings from the temperature probe View the current time and date for the system Access any of the five customizable applications touch i C APPS for additional applications View detailed information about current or previous alarm events or door open data View whether the monitoring system is running on backup battery power Mute audible alarms Turn the chamber light on and off View a graph of the chamber temperature for the past 24 hours or past 7 days of operation 360140 1 C Helmer 58 Undercounter Refrigerator Service Manual 10 2 Viewing and changing settings Through the i C monitoring system the current settings may be viewed and changed To view settings touch Home i C APPS Settings Details for each setting are displayed Use a touch drag motion to scroll up or down to display additional settings The settings can be changed through the same screen that they are viewed in Refer to the 1 C User Guide for instructions in changing settings as well as descriptions and default values for each setting NOTE The Settings screen may be password protected A valid four digit password must be entered to view settings If viewing settings for the first time enter the factory default password of 1234 10 2 1 Calibrating the settings for the chamber temperature probe To ensure the high and low temperature alarms are activated properly the chamber temperature that is read by the temperatu
89. ndercounter Refrigerator Service Manual 19 4 2 19 4 3 Helmer 4 Activate the Low Temperature Alarm by doing the following while constantly stirring the chilled water and watching the temperature on the monitor slowly add ice so the temperature decreases 0 5 C per minute This is approximately I teaspoon 5 ml of ice every 15 to 25 seconds Be sure to keep the ends of the thermometer and probe in the lower liquid and not in the upper ice When the temperature reaches the low alarm setpoint an alarm sounds and the LOW TEMP lamp flashes 5 Note and record the temperature on the independent thermometer This is the low alarm setpoint 6 Activate the High Temperature Alarm by doing the following while constantly stirring the chilled water and watching the temperature on the monitor slowly add warm water so the temperature increases 0 5 C per minute When the temperature reaches the high alarm setpoint an alarm activates and the HIGH TEMP lamp flashes The test is complete Note and record the temperature on the independent thermometer This is the high alarm setpoint Remove the thermometer and probe from the water and remove the tape Place the probe in the bottle and immerse it at least 2 inches 50 mm in the solution ON 0 Compare each thermometer value to its corresponding setpoint If the values do not match see chapter 16 Troubleshooting Testing the power failure alarm CAUTION Testing the power failure alarm req
90. ng SET lamp Indicates that a control or alarm setpoint is being changed Display Displays real time temperature information setpoints and alarms SEL button Toggles between alarm monitor and control modes CONTROL lamp Indicates when the display is showing the refrigerator setpoint I MONITOR lamp Indicates when the display is showing temperature readings from the chamber probe Also indicates when alarm setpoints are being changed UP ARROW button DOWNARROW MUTE Decreases a temperature setting Also mutes the audible alarm ALARM button for five minutes SET button Accesses Configuration mode NOTE There is an Alarm Disable key switch located inside the front lower panel This switch disables all audible alarms This switch does not affect alarm lamps or signals sent through the remote alarm interface Helmer 360140 1 C 19 2 Horizon Series Models Settings 115 Viewing current settings The monitoring and control system has alarms which activate if the temperature is too high or too low The High Temp alarm setpoint specifies the temperature at which the High Temperature Alarm should activate If the temperature detected by the chamber probe is greater than or equal to this value the alarm activates The factory default setpoint is 5 5 C The Low Temp alarm setpoint specifies the temperature at which the Low Temperature Alarm should activate If the temperature that is detected by the chamber probe is less than
91. nnect the refrigerator to outlet power Switch the AC ON OFF switch ON Switch the battery backup ON 23 Verify the door is level and the hinges operate smoothly and the door seals tightly Level the door using a shim if necessary On models equipped with the Access Control option adjust the catch on the refrigerator cabinet to engage the Access Control latch on the door Ensure seal integrity by monitoring temperature for a reasonable period 360140 1 C Horizon Series Models Product Configuration 81 13 9 Hinge reversal solid door with Access Control option The undercounter door is comprised of an inner frame and outer frame A A gray data cable B is connected to the display circuit board The cable exits the door at the corner C The length of the cable inside the door is approximately 3 feet and it follows a channel along the top and side of the outer door frame Additional slack has been bundled in the cable D to allow the door hinges to be reversed A second cable E for the Access Control lock is included NOTE The inner and outer door frames will have to be separated to re route the data cable and Access Control cable Outer door frame right hinged solid door version shown data cable and optional Access Control cable 1 Remove all remaining screws from both sides of the door assembly 2 Lift the inner door frame out of the outer door frame and set aside A J hook tool may be used along the bottom
92. o minutes the Temperature Calibration screen closes and returns to the home screen CAUTION The Control Sensor and Control Sensor Offset Evaporator Defrost and Evaporator N Defrost Offset and Compressor Probe Temperature settings are factory preset and should not be changed unless directed by Helmer Technical Service Touch Home i C APPS Settings Enter the Settings password Touch Temperature Calibration Touch plus or minus on the Control Sensor spin box gt The value for the probe should match the temperature measured in the unit cooler at the control sensor by an independent thermometer calibrated and traceable per national standards Touch plus or minus on the Control Sensor Offset spin box gt The value for the offset should be equal to the difference between the refrigerator setpoint and the temperature as measured by an independent thermometer at the probe bottle P Raise the offset value to lower chamber temperature lower the offset value to raise chamber temperature gt Example measured temperature at the probe bottle refrigerator setpoint offset value gt Example 4 5 4 0 0 5 Touch plus or minus on the Upper Temperature spin box gt The value for the probe should match the temperature measured in the probe bottle by an independent thermometer Touch plus or minus on the Evaporator Defrost spin box gt The value should match the temperature me
93. ode exit 360140 1 C Helmer 116 Undercounter Refrigerator Service Manual 19 3 19 3 1 19 3 2 Helmer Changing settings Changing setpoints for chamber temperature alarms The monitoring and control system has alarms which activate if the temperature is too high or too low The setpoints for both High and Low Alarms can be changed to a value from 40 0 to 25 0 The High Alarm setpoint specifies the temperature at which the High Temperature Alarm should activate If the temperature detected by the chamber probe is greater than or equal to this value the alarm activates The default High setpoint is set by the factory at 5 5 The Low Alarm setpoint specifies the temperature at which the Low Temperature Alarm should activate If the temperature detected by the chamber probe is less than or equal to this value the alarm activates The default Low Alarm setpoint for blood bank models is set by the factory at 1 5 C The Low Alarm setpoint for laboratory pharmacy models is set by the factory at 2 0 C 1 To enter program mode press and hold both the Up Arrow and Down Arrow buttons for three seconds The MONITOR lamp flashes to indicate program mode enable 2 Press and release the SEL button to select the setting to view 3 While pressing and holding the SET button press and release the Up Arrow or Down Arrow button to change the value for the parameter 4 When changes are complete release the SET button
94. ol parts with those included in faulty the control and display board kit or replace the monitor control board The alarm buzzer is gt Replace the alarm buzzer faulty A component is faulty or Contact Helmer Technical Service internal connections are loose Audible alarms are gt Verify that audible alarms not muted muted For i Series if time remaining is greater than 5 minutes change MUTE timer value to 5 minutes and wait until timer resets Helmer 360140 1 C i Series Models Troubleshooting 41 Possible Cause The refrigerator meets The control board is gt Replace control parts with those included in an alarm condition but faulty the control and display board kit or replace the the appropriate alarm is monitor control board not active The alarm setpoint was Check the current setpoints for the alarms changed A component is faulty or Contact Helmer Technical Service internal connections are loose The High Temperature Connections for the P Test the chamber temperature probe alarm activates when chamber temperature connections Secure the connections if the door is opened then probe are loose necessary clears shortly after the Chamber probe is faulty gt Test the probe Replace the probe if necessary Unit cooler fan gt Test the door switch and unit cooler fan continues to run while connections Secure the connections if the door is open necessary
95. on Replacement part Label on numbers schematic Horizon Series monitoring and control system See subsequent section s for part numbers x Temperature chart recorder standard on blood 500612 1 bank model optional on laboratory pharmacy model MEE Chart paper 52 sheets 220366 Not Chart recorder backup battery 120218 shown 360140 1 C Helmer 104 Undercounter Refrigerator Service Manual 17 1 1 Control system display parts HIGH TEMP CONTROL x LOWTEMP SEL A f MONITOR DOOR e MUTE ALARM Top Display with touchpad Bottom Display board Label Description Replacement part number Label on schematic Touchpad display board assembly 400838 1 Not Interface cable Without Access Control 400805 2 HL shown 17 2 Front A B CD E Lower panel features Label Description Replacement part Label on number schematic Monitoring system backup battery 120399 Alarm disable key switch 120227 Circuit breakers 230 V models only 230 V 50 Hz 120272 230 V 60 Hz 120288 E ON OFF AC power switch 120478 ON OFF chamber light switch optional 120202 Helmer 360140 1 C Horizon Series Models Parts 105 17 2 1 Access Control option Optional Access Control door lock handle and keypad Label Description Replacement part Label on number schematic A Access Control cartridge Left hinged door 400959 1 Right hinged door 400959 2 Nylon spacer E Access control keypad 8
96. or equal to this value the alarm activates The default Low Alarm setpoint for blood bank models is set by the factory at 1 5 C The Low Alarm setpoint for laboratory pharmacy models is set by the factory at 2 0 C The Monitor Offset is used to calibrate the displayed temperature with the measured temperature If the temperature displayed on the monitor does not match the actual chamber temperature the setting for the Monitor Offset may be changed to calibrate them The default value varies for each refrigerator NOTE Control Offset and Control Hysteresis control the temperature of the chamber during operation These values are factory preset and should not be changed See the Undercounter Refrigerator Service Manual for hysteresis values If this lamp is flashing Then this setting is selected HIGH TEMP and MONITOR High Temp alarm setpoint LOW TEMP and MONITOR Low Temp alarm setpoint MONITOR only Monitor Offset CONTROL only Control Offset CONTROL only Control Hysteresis 1 To enter program mode press and hold both the Up Arrow and Down Arrow buttons for three seconds The MONITOR and HIGH TEMP lamps flash to indicate program mode enable 2 Press and release SEL button to select the setting of interest 3 Optional To view the value for another setting repeat step 2 4 To exit program mode press and hold both the Up Arrow and Down Arrow buttons for three seconds The MONITOR and HIGH TEMP lamps stop flashing to indicate program m
97. or laboratory and pharmacy models Control temperature offset value The Control Offset is used to control chamber temperature This value is factory preset and should not be changed Monitor temperature offset value If the temperature displayed on the monitor does not match the actual chamber temperature the setting for the Monitor Offset can be changed so they match The monitor offset can be changed to a value from 10 0 C to 10 0 C 360140 1 C Helmer 90 Undercounter Refrigerator Service Manual 15 AN 15 1 15 3 A Maintenance CAUTION See Operation Manual for the preventive maintenance PM schedule Recharging refrigerant CAUTION The procedures in this chapter should only be completed by trained refrigeration technicians who are familiar with the terminology and processes described here as well as with local and organizational regulations regarding refrigerant leaks Use only non CFC R 134A refrigerant The amount of the full initial charge varies by model and power requirements which can be found on the Product Specification label The initial charge is Mode Power requirements Initial charge 105 model Any 10 1 oz 286 g Obtain gt Refrigerant of the appropriate type and quantity gt A calibrated pressure gauge capable of reading 0 Ib ir to 25 Ib in 0 kPa to 175 kPa 1 Attach the pressure gauge to the refrigeration lines 2 Monitor the low side suction pressure through a fu
98. ostien Hu ON TIME OFF TIME i H b H DEFROST TIMER HLRHPR 6 Je me HB ON summen 7 8 AO C UNIT COOLER 00 5 115V 6 230V ES 5 e 7 8 HOSS3HdWOO 311002 LINN HOTH3LNI J COMPRESSOR K CONDENSING UNIT FAN MOTOR 40 Lo 300 2 L COMPRESSOR SSR MAIN Q POWER SWITCH Te O ON CIRCUIT 2 BREAKERS 230V ONLY L1 OUT GND L2 OUT D Power Entry RFI Filter L1IN L2 IN A POWER CORD MAIN POWER 115V 10 60 Hz 10 50 Hz 10 60 Hz 360140 1 C Helmer 114 Undercounter Refrigerator Service Manual 19 Settings 19 1 Touring the monitoring and control system ABC D F G H J K L HIGH TEMP _ CONTROL LOW TEMP A v SET W MONITOR DOOR MUTE ALARM Horizon Series combined monitoring and control system Label Description Function A HIGH TEMP lamp Indicates when the refrigerator is in a high temperature alarm condition Also indicates high alarm temperature setpoint 1s being changed LOW TEMP lamp Indicates when the refrigerator is in a low temperature alarm condition Also indicates low alarm temperature setpoint is being changed DOOR ALARM lamp Indicates when the door is open for greater than three minutes D COOL lamp Indicates the compressor is runni
99. pen NO and Normally Closed NC These terminals are dry contacts and do not supply voltage The interface circuit is either normally open or normally closed depending on which terminals are used The requirements for your alarm system determine which wires must connect to which terminals To connect to the remote alarm interface 1 Switch the AC ON OFF switch to OFF 2 Switch the battery backup switch to OFF 3 the back of the refrigerator locate the remote alarm interface 4 Connect the remote alarm wires to the appropriate terminals according to the requirements for your alarm system Using a cable tie secure the wires together for stability as needed 6 Switch the battery backup switch to ON 7 Switch the AC ON OFF switch to ON Moving drawers shelves and baskets Storage features availability of shelves drawers and baskets varies by model NOTE Blood bank models iB feature drawers as the standard storage configuration Laboratory pharmacy models iLR feature shelves as the standard storage configuration Any combination of drawers baskets and shelves may be installed CAUTION gt Before moving drawers shelves baskets slides or brackets protect stored items from extended exposure to adverse temperatures gt Before moving drawers be sure they are completely empty for safe lifting Helmer 360140 1 C 4 4 1 4 4 2 i Series Models Product Configuration 15 To remove a drawer or basket
100. ple 4 Series refers to iB105 and iLR105 refrigerators and Horizon Series refers to HB105 and HLR105 refrigerators This manual covers all undercounter refrigerators which may be identified singly or by their respective Series Model Group Blood Bank iB105 HB105 Laboratory Pharmacy iLR105 HLR105 Copyright and trademark information Helmer i Series 1 Horizon Series and Rel i are registered trademarks or trademarks of Helmer Inc in the United States of America Copyright 2012 Helmer Inc All other trademarks and registered trademarks are the property of their respective owners 360140 1 C Helmer 4 Undercounter Refrigerator Service Manual 2 1 2 2 Safety This chapter describes general safety information for servicing the refrigerator The Refrigerator Operation Manual includes additional safety information for operating the refrigerator Your organization may provide additional safety information Labels Caution risk of danger Caution shock hazard UNLOCK ALL CASTERS BEFORE PUSHING TO PREVENT OVERTURNING OUVREZ TOUTES LES ROULETTES AVANT LE DEPLACEMENT POUR EMP CHER LE RENVERSEMENT Caution unlock all casters Earth ground terminal Protective earth ground terminal Avoiding injury Review safety instructions before installing using or maintaining the equipment Before performing procedures review any specific safety instructions Do not open mult
101. point is the temperature at which the refrigerator operates 3 Touch plus or minus on the Hysteresis Setpoint spin box gt The hysteresis setpoint is the allowable fluctuation in temperature relative to the temperature setpoint A lower hysteresis setpoint will limit the temperature variation to a smaller range a higher setpoint will allow the temperature to vary across a larger range 4 Touch plus or minus on the Delay on Start Up spin box gt The refrigerator compressor startup is delayed to allow the 1 C monitoring and control system to start first 5 Touch plus or minus on the Duty Cycle of Control Relay during Probe Error spin box gt The duty cycle is the percentage of time the compressor will run in the event of a temperature control probe failure Setting Setting description Initial factory setting Temperature Setpoint Temperature at which the 4 C refrigerator operates Hysteresis Setpoint Allowable temperature fluctuation Varies according to model and relative to the temperature setpoint cabinet size Delay on Start Up Time in minutes that a compressor 2 minutes start will be delayed after a power interruption Duty Cycle of Control Percentage of time the compressor 50 Relay during Probe Error will run during a probe error Helmer 360140 1 C 5 2 i Series Models Temperature Controller Programs 29 Temperature calibration settings NOTE When there is no interaction for tw
102. ppropriate height in the standard 2 Tap the front brackets downward to engage them in the standards 3 Using a screwdriver install the retainers for the front brackets To remove a set of shelf brackets 1 Using a screwdriver remove the retainers for the front brackets 2 Tap the front brackets upward to disengage them from the standards 3 Remove the front brackets from the standards 360140 1 C Helmer 16 Undercounter Refrigerator Service Manual To install a set of shelf brackets 1 Insert the front brackets into the appropriate height in the standards 2 the front brackets downward to engage them in the standards 3 Using a screwdriver install the retainers for the front brackets 4 4 3 Drawer weight NOTE Maximum drawer load is 100 Ibs 46 kg 4 5 Leveling the refrigerator After the refrigerator has been placed the leveling feet must be adjusted in order to provide proper drainage of condensation from the evaporator coil inside the unit cooler NOTE Helmer recommends the use of leveling feet Level the refrigerator front to back 1 Use a wrench to adjust the leveling feet 2 A bubble level may be used to ensure the refrigerator is level 3 When the refrigerator is properly leveled from front to back the bottom of the unit cooler will slope downward from front to back toward the condensate drain line located in the back of the cabinet Level the refrigerator side to side 1 Use a wrench to adjust the leveling feet
103. probe are loose necessary clears shortly after the Chamber probe is faulty gt Test the probe Replace the probe if necessary Unit cooler fan gt Test the door switch and unit cooler fan continues to run while connections Secure the connections if the door is open necessary Replace the door switch or fan motor if necessary The probe bottle is gt Check the level of product simulation solution empty in the bottle Clean and refill bottle if needed The high temperature gt Check the setpoint Change the setpoint if alarm setpoint is set too necessary low A component is faulty or Contact Helmer Technical Service internal connections are loose 360140 1 C Helmer 100 Undercounter Refrigerator Service Manual Problem Possible Cause Action The refrigerator is Outlet connection is gt Verify power at the outlet Repair the original connected to power but faulty outlet or connect to a different outlet if necessary the AC Power Failure Power cord is faulty gt Confirm the power cord is connected securely alarm is active Secure the power cord if necessary The ON OFF AC power Replace the ON OFF AC power switch switch located inside the front lower panel is faulty The ON OFF AC power Turn the ON OFF AC power switch to the ON switch is OFF position A component is faulty or Contact Helmer Technical Service internal connections are loose A component is faulty or
104. r Solenoid usar Discharge Probe Option NC No O be pode EXTERIOR P ALARM 000 INTERIOR LIGHT CONTACTS Option E NN 3 28vDC L J COMPRESSOR la COMPRESSOR L2IN GND L1IN HR SSR Q COMPRESSOR K ES LINE FILTER 17 H CONDENSING UNIT L2 OUT L1 OUT FAN MOTOR 360140 1 C 10 10 1 10 1 1 i Series Models Settings 57 Settings NOTE Information regarding descriptions and default values for general settings alarm settings and display settings is available in the 1 C User Guide Navigating the Home screen The Home screen displays current information and is the starting screen for all interaction with the monitoring system The Home screen appears when gt Home button is touched from any other screen gt There is no interaction for two minutes on any screen other than those used to enter a password Information header Allows access to information logs Indicates new logged alarm events Provides date time and unit ID information Turn chamber light on or off Mute active audible alarms Display zone Identifies active alarm conditions Displays probe temperature Indicates refrigerator operational status Application icons gt Displays customizable i C application button icons Understanding functions available from the Home screen NOTE See the i C User Guide for options available on all i C screens From the Home scree
105. r so the top edge of the door is level While maintaining alignment tighten all screws attaching both hinges to the door and to the cabinet 15 Using the additional slack in the data cable and Access Control cable if equipped route the cables across the front of the cabinet Attach the cables to the zip tie holder under the cabinet on the hinge side Secure cables with zip tie Power and communication cables secured at the hinge side of the cabinet after hinge reversal 16 Slide the data cable through the slot in the access panel then install the grommet in the hole Install the plug in the access panel on the side where the hinges had been located Allow enough slack approximately 3 inches in the cable s between the door and the cabinet so the door can pivot open and closed without straining the cable 17 Install the access panel and cover using six 6 screws 18 Install the kick panel using four 4 screws 19 Install the door handle on the opposite side of the door For models equipped with the Access Control option reconnect the spade connectors for the Access Control lock 20 Install the latch plates and spacer bar on the opposite side of the cabinet Ifthe refrigerator is equipped with the Access Control option install the catch on the cabinet 21 Finish reversing the lower hinge and spring and pin assembly Follow the procedure in chapter 13 12 Hinge spring assembly reversal then return to step 22 in this chapter 22 Reco
106. r temperature combined with the offset value establishes the refrigerator setpoint NOTE The probes in the bottles are connected to the monitoring system and sense chamber temperature These probes do not impact the refrigerator setpoint Determining current refrigerator setpoint First confirm Refrigerator has run for at least 24 hours to stabilize chamber temperature Chamber temperature is not fluctuating because of excessive door openings and closings gt gt gt Refrigerator has been placed per location requirements See operation manual gt Preventive maintenance has been completed See operation manual Troubleshooting items associated with chamber temperature have been reviewed Obtain An independent thermometer calibrated and traceable per national standards P This is used to secure the probe to the thermometer 1 Remove all probes from the upper probe bottle 2 Unscrew the cap from the bottle 3 the independent thermometer to the temperature probe and replace them in the bottle so their ends are immersed at least 2 inches 50 mm A On the independent thermometer monitor temperature for about 10 minutes to determine an approximate range From the range calculate an approximate average temperature This 1s the current setpoint Remove thermometer and probe from the bottle and remove tape Replace bottle cap ensuring a tight fit OW Place probes in bottle immersing
107. re probe must be accurate Verify the probe is reading correctly by comparing the readings to those from an independent thermometer After determining the appropriate temperature change the value displayed on the monitor for the temperature probe NOTE If the variance is within acceptable limits for your organization changing the probe settings is optional The default setting for the chamber temperature probe is 4 0 C The value can be changed to a value from 50 0 C to 50 0 C Obtain gt An independent thermometer calibrated and traceable per national standards gt This is used to secure the probe to the thermometer 1 Measure the temperature of the probe bottle contents a Remove all probes and the cap from the bottle b Tape the independent thermometer to the temperature probe and replace them in the bottle so their ends are immersed at least 2 inches 50 mm in the solution c Allow the chamber temperature to stabilize for approximately 10 minutes d Obtain the reading from the independent thermometer 2 Enter and save the reading from the independent thermometer into the i C system a From the Home screen touch i C APPS Settings Temperature Calibration The Temperature Calibration screen appears b Touch plus or minus on the Upper Temperature spin box to increase or decrease the value to match the measured value C The message New Setting Saved appears next to the spin box indicating that the new te
108. reen brightness will automatically be reduced The monitoring system will automatically disable some features to extend battery life Regularly test whether the backup battery is functioning and replace it if the test fails or if the battery has been in use for two years Test whether the backup battery is functioning 1 Disconnect the refrigerator from AC power by disconnecting the AC power cord from the wall outlet or by switching the AC ON OFF switch OFF The display should continue to display information with the screen backlight at reduced brightness The battery icon will appear in the header bar of the screen If the display is blank replace the battery 2 Re connect the refrigerator to AC power CAUTION When installing a replacement battery for the monitoring system use only a battery which meets the specifications outlined in chapter 6 7 Supplies Replacing the LED lamp strip The refrigerator is shipped with one LED lamp strip installed A replacement LED lamp strip is available from Helmer CAUTION gt Follow all chemical handling and disposal requirements and procedures specified by your organization See chapter 2 Safety gt Replacing lamps requires power disconnection Protect items in the refrigerator from extended exposure to adverse temperatures Disconnect the power Using a screwdriver detach the lamp strip from the chamber Remove the defective lamp strip and disconnect the wires Connect the new lamp strip
109. refrigerator to normal operation Connect the refrigerator to outlet power and switch the AC ON OFF switch ON Reconnect the backup battery 360140 1 C Helmer 94 Undercounter Refrigerator Service Manual Removing and replacing the Access Control cartridge The Access Control lock cartridge is a serviceable part and may be replaced if necessary The lock 15 7 AN Helmer cartridge is an assembly that is installed in the door handle of the refrigerator CAUTION gt Review all safety instructions prior to replacing the Access Control cartridge See chapter 2 Safety Power the refrigerator off and disconnect AC power before performing service The chamber temperature will increase above the allowable temperature range for stored inventory while performing this procedure Take precaution to protect items in the refrigerator from extended exposure to adverse temperature gt gt The following is required to remove and replace the Access Control cartridge gt Needle nose pliers gt 10 spanner driver To remove the Access Control cartridge 1 4 In the lower front control panel switch the AC ON OFF switch OFF Disconnect the refrigerator from outlet power as well Disable the power failure alarm by turning the Alarm Disable key switch OFF Open the refrigerator door and prop the door open If the door is in a locked state use the manual override key to override the Access Control lock then open the refrigerator door
110. right to replace any product in lieu of servicing it in the field 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 p Series model compressor warranty period is seven 7 years Parts For a period of two 2 years Helmer will supply at no charge including freight any part that fails due to defects in material or workmanship under normal use with the exception of expendable items Expendable items such as glass filters light bulbs and door gaskets are excluded from this warranty coverage Inspection of defective parts by Helmer will be final in determining warranty status Warranty procedures must be followed in all events 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 perform 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
111. rom the standards 3 Remove the front brackets from the standards To install a set of shelf brackets 1 Insert the front brackets into the appropriate height in the standards 2 the front brackets downward to engage them in the standards 3 Using a screwdriver install the retainers for the front brackets Drawer weight NOTE Maximum drawer load is 100 Ibs 46 kg Leveling the refrigerator After the refrigerator has been placed the leveling feet must be adjusted in order to provide proper drainage of condensation from the evaporator coil inside the unit cooler NOTE Helmer recommends the use of leveling feet Level the refrigerator front to back 1 Use a wrench to adjust the leveling feet 2 A bubble level may be used to ensure the refrigerator is level 3 When the refrigerator is properly leveled from front to back the bottom of the unit cooler will slope downward from front to back toward the condensate drain line located in the back of the cabinet Level the refrigerator side to side 1 Use a wrench to adjust the leveling feet 2 A bubble level may be used to ensure the refrigerator is level 3 When the refrigerator is properly leveled from side to side the bottom of the unit cooler will be horizontal parallel to the floor 360140 1 C Helmer 76 Undercounter Refrigerator Service Manual 13 6 Door characteristics In general service information varies depending on the door characteristics In Helmer undercoun
112. rrectly Replace it not stabilize at the if necessary refrigerator setpoint The condensing unit fan Check the condensing unit fan connections is not running Replace the fan motor if necessary The unit cooler fan is gt Check the voltage to the fan when door switch not running is activated Replace the fan motor or door switch if necessary The compressor motor gt Replace the compressor has seized The refrigerant level is Check the refrigeration lines for leaks and too low repair them if necessary Check the refrigerant level Recharge the refrigerant if necessary The compressor starting Confirm the relay is operating correctly relay is faulty Replace the relay if necessary The condenser grill is gt Check the condenser grill Clean it if dirty necessary The circulation in the gt Check if there any items that may obstruct chamber is not adequate air flow and remove them if necessary The ambient air gt Confirm refrigerator location meets temperature around the requirements See Operation manual refrigerator is too high component is faulty or gt Contact Helmer Technical Service internal connections are loose 7 3 Alarm activation problems Possible Cause The refrigerator is in The alarm system is gt Confirm the circuit board and line connections an alarm condition but faulty are functioning correctly alarms are not audible The control board is P Replace contr
113. ry voltage level amp Replace the backup batteries for the activating sporadically on the backup batteries monitoring system for the monitoring system is low 7 4 Testing problems The automatic The connections for P Test the chamber temperature probe temperature tests do not the chamber temperature connections Secure the connections if work probe are loose necessary The chamber temperature Test the chamber temperature probe Replace probe is faulty the probe if necessary The control board is gt Replace parts with those included in the faulty control and display board kit The High Alarm setpoint gt Confirm the alarm setpoints are set at the is set significantly higher expected or correct values than the default value or Test the temperature alarms manually the Low Alarm setpoint is set significantly lower than the default value A component is faulty or Contact Helmer Technical Service internal connections are loose 360140 1 C Helmer 44 Undercounter Refrigerator Service Manual 7 5 Condensation problems Possible Cause There is excessive water Humid air is entering the Confirm the refrigerator is level and the in the water evaporation chamber door is aligned closing tightly and sealing tray inside the lower correctly Correct issues as necessary compartment in the back of the unit There is excessive water Humid air is entering the Confirm the refrigerator i
114. s The i Series combined temperature monitor and controller is programmed at the factory with the settings that are listed in this chapter To change the value for a setting first enter the Settings mode for that setting The method for accessing the Settings mode for each setting varies NOTE The Settings screen may be password protected A valid four digit password must be entered to view settings If viewing settings for the first time enter the factory default password of 1234 Hysteresis The hysteresis band range value is factory preset according to model and cabinet size This value represents each side of the refrigerator setpoint value for a combined total band range This value should not be changed A CAUTION Changing temperature settings affects the operation of the refrigerator Do not change settings unless instructed to do so in product documentation or by a Helmer Technical Services representative 360140 1 C Helmer 28 Undercounter Refrigerator Service Manual 5 1 Temperature setpoint settings NOTE When there is no interaction for two minutes the Temperature Setpoint screen closes and returns to the home screen A CAUTION The hysteresis setpoint is factory preset and should not be changed unless directed by Helmer Technical Service 1 Touchi C APPS i C Settings Enter the Settings password then touch Temperature Setpoints Touch plus or minus on the Temperature Setpoint spin box gt The set
115. s level and the in the chamber chamber door is aligned closing tightly and sealing correctly Correct issues as necessary The connection between gt Confirm the connection is secure Tighten the the unit cooler and the connection if necessary drain tube is loose The drain line is gt Confirm the drain tube is free of debris plugged Remove debris if necessary There is excessive Humid air is entering the Confirm the refrigerator is level and the moisture on the doors chamber door is aligned closing tightly and sealing correctly Relative humidity gt Confirm refrigerator location meets around refrigerator is requirements too high Water leaks from Humid air is entering the gt Confirm the refrigerator is level and the the bottom of the chamber door is aligned closing tightly and sealing refrigerator correctly Excessive water is found Contact Helmer Technical Service to correct in the evaporation tray issues as necessary inside the refrigerator Helmer 360140 1 C i Series Models Parts 45 8 Parts This chapter lists most replaceable parts and part numbers It also references parts to schematics See chapter 9 Schematics A CAUTION Before replacing parts that affect chamber temperature take precautions to protect items in the refrigerator from extended exposure to adverse temperatures 8 1 Control and monitoring A B C 4 0 UNL J The temperature chart recorder can
116. sembly 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 3 Remove the plug from the handle side of the door Set the plug aside Helmer 360140 1 C i Series Models Product Configuration 23 4 Pull the grommet out of the hole in the door and slide the braided sleeve out of the slot Slide sleeve out of slot Pull plug out Pull grommet out Left Remove the inner door with a J hook tool Center Remove the plug on the handle side of the door Right Remove the grommet and braided sleeve from door 5 Re route the power cable and communication cables inside the door and along the opposite side of the door frame The cables should follow the edge of the door frame as closely as possible Tape the cables to the door frame The excess slack in the cables should be outside of the door If the refrigerator is equipped with the Access Control option reverse the installation of the Access Control power cable and tape the cable to the door frame Use a hammer and center punch to open the knockout that the Access Control cable will run through Left Original cable routing right hinged door Right New cable routing left hinged door 360140 1 C Helmer 24 Undercounter Refrigerator Service Manual 6 Cut the zip ties A on the braided sleeve B Slide the sleeve and grommets C along t
117. soap and water solution Clean and refill probe bottles NOTE A replacement kit that includes a probe bottle and glycerin is also available from Helmer CAUTION Protect stored items from extended exposure to adverse temperatures Obtain gt Fresh water bleach solution not provided Solution is a 10 bleach solution 1 part bleach to 9 parts water where bleach means a 5 solution of commercial sodium hypochlorite NaOCI Otherwise use an equivalent oxidizing cleaner disinfectant approved for use by your organization gt Approximately 4 oz 120 ml of product simulation solution per bottle Solution is a 10 1 ratio of water to glycerin CAUTION Temperature probes are fragile Handle with care Helmer 360140 1 6 5 i Series Models Maintenance 33 Remove all probes from bottle Remove bottle from bracket and clean with water bleach solution Fill with approximately 4 oz 120 ml of product simulation solution Cap tightly to minimize evaporation a N Place bottle in bracket and replace probes immersing at least 2 inches 50 mm in solution i C touchscreen Clean the touchscreen with a soft dry cotton cloth Removing and installing the unit cooler cover The unit cooler cover has a port to drain condensation generated in the cooling process If the unit cooler cover Is not removed correctly the drain port may be damaged Improper drainage may result in excessive icing in the refrigerator and the refri
118. ssary and should not be performed unless directed to do so by Helmer Technical Service 19 4 Testing alarms 19 4 1 Testing chamber temperature alarms The undercounter refrigerator has alarms that activate when the chamber temperature becomes too high or too low Test these alarms by placing the temperature probe in chilled or warm water and noting the temperatures at which the alarms activate A CAUTION Testing alarms requires power disconnection Protect items from extended exposure to adverse temperatures IMPORTANT Complete the low alarm test before the high alarm test in order to control the temperature more easily and complete the testing more quickly Obtain gt An independent thermometer calibrated and traceable per national standards Tape used to secure the chamber probe to the thermometer One 8 oz 250 ml glass half filled with chilled water This glass holds the probe and thermometer One glass filled with crushed ice The crushed ice is used to cool the water in the probe glass 8 oz 250 ml glass half filled of warm water The warm water is used to warm the water in the probe glass Identify the current settings for the low alarm setpoint and high alarm setpoint N Remove the chamber temperature probe from the probe bottle 3 the temperature probe to the thermometer Immerse both in the chilled water and place their ends toward the bottom of the glass 360140 1 C Helmer 118 U
119. supply for Access 120505 HN Control optional and cabinet lighting D Control monitor board 800027 1 E Temperature control transformer 115 V models 401097 1 HO 230 V models 401098 1 BUE Not Power line filter 120299 shown Helmer 360140 1 C 17 4 17 5 17 5 1 Horizon Series Models Parts 109 Behind the side access panel Undercounter refrigerators feature easy access for servicing removal and replacement of the compressors and condensers and their respective parts Access is available from the rear and side This chapter demonstrates the side access panel Using a screwdriver remove the screws holding the side access cover below left and the cover itself Side access panel Interior Chamber temperature probe and probe bottle Chamber interior features E Replacement part Label on Probe bottle and glycerin kit 400922 1 Chamber temperature probe 800029 1 c eam Oi 360140 1 C Helmer 110 Undercounter Refrigerator Service Manual 17 5 2 Light parts NOTE The chamber light is optional on Horizon Series refrigerators Light features partial views Label Description Replacement part Label on number schematic Light assembly includes circuit board and cover 800023 1 Not Light cover shown 17 5 3 Unit cooler parts number schematic 230 V models 120553 Fangurd Unit cooler fan motor Md i E 230 V 120560 Temperature control probe 800048 1
120. t does There is debris in the p Pull the drawer or basket out and confirm the not slide easily drawer slides slides are free of debris Clean if necessary The drawer slides are gt Using lightweight oil lubricate the bearings not lubricated in the slides The drawer or basket is Confirm both slides for the drawer or basket misaligned or not level are mounted at the same height A drawer slide is faulty gt Confirm the slide is operating correctly Replace if necessary A door does not open There is debris in the gt Confirm the hinges are free of debris Clean easily hinges the hinges if necessary A hinge is faulty gt Confirm the hinge spring or pin is not damaged Replace entire hinge lower hinge only if necessary The lower hinge spring Replace the entire lower hinge spring and pin and or pin may be bent assembly or faulty The monitor display is The screen contrast is gt Change the screen contrast hard to read set too low The alarm monitor is not Digital electronics are gt Reset the monitoring system responding locked because of an interruption in power Helmer 360140 1 C i Series Models Troubleshooting 39 7 2 Chamber temperature problems Possible Cause The chamber The connections for the Test the chamber probe connections Secure temperature displayed is chamber temperature the connections if necessary higher or lower than the probe are loose actual temperatur
121. ted to the right Kick plate removed Pull out electrical components tray open 360140 1 C Helmer 50 Undercounter Refrigerator Service Manual 8 3 3 Electrical tray parts Description Replacement part Label on number schematic Power supply board 800035 1 B Compressor relay 120426 1 control board 800034 1 Compressor power line filter 120706 Helmer 360140 1 C i Series Models Parts 51 8 4 Side access panel Undercounter refrigerators feature easy access for servicing removal and replacement of the compressors and condensers and their respective parts Access is available from the rear and side This chapter demonstrates the side access panel Using a screwdriver remove the screws holding the side access cover below left and the cover itself Side access panel 8 5 Interior 8 5 1 Chamber temperature probe and probe bottle emm Probe borie and giyerim Joo j e J 360140 1 C Helmer 52 Undercounter Refrigerator Service Manual 8 5 2 Light parts A Light features partial views Label Description Replacement part Label on number schematic Light assembly includes circuit board and cover 800023 1 Not Light cover shown 8 5 3 Unit cooler parts Description Replacement part Label on number schematic A Unit cooler assembly 120 V 120536 230 V 120553 Fanguard pa Unit cooler fan motor 115 V 120540 E 230 V 120560 F
122. ter refrigerators the single door is solid standard configuration or optional glass The door has a spring loaded self closing hinge set which may be located on the right or the left side of the door frame On Horizon Series refrigerators the Horizon monitoring and control system is located on the door Model group Door type Blood bank HB Glass or solid Laboratory pharmacy HLR 13 7 Optional adapter kits for medication dispensing locks Call Helmer or your distributor for specific system information 13 8 Door hinge and handle reversal all models A CAUTION Reversing the door hinges and handle requires the refrigerator to be disconnected from outlet power Before starting this procedure take precautions to protect items in the refrigerator from extended exposure to adverse temperatures The procedure for reversing the hinges and door handle is the same on all undercounter refrigerator models regardless of door type glass door or solid door Following are instructions for reversing the door hinges and the door handle For specific instructions regarding cable routing within the door and under the cabinet refer to subsequent chapters as instructed NOTE The 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 Disassembly procedure 1 Open the lower front control panel on the refrigerator cabinet Switch the AC ON OFF sw
123. th the ower hole in the handle Insert a screw through the handle and the spacer and hand thread it into the door NOTE Ensure the wires will not be pinched between the handle and the door 6 Tighten all three screws to attach the handle and cartridge to the door 7 Connect the electrical wires from the door to the wires from the cartridge Tuck the excess wiring into the door handle 8 Close the refrigerator door and return the refrigerator to normal operation to provide power to the Access Control lock Connect the refrigerator to outlet power then switch the AC ON OFF switch ON Cancel the high temperature alarm by turning the Alarm Disable key switch OFF 9 Check for proper engagement of the latch over the catch The latch in the Access Control cartridge should engage the catch on the refrigerator cabinet and prevent the door from being opened If the door closes fully but can be opened adjust the catch on the cabinet up to engage the latch If the door does not close fully adjust the catch down to allow the door to close 10 Once the refrigerator has reached operating temperature enable the high temperature alarm by turning the Alarm Disable key switch ON A CAUTION Allow the refrigerator temperature to stabilize at the setpoint before moving contents back into the refrigerator 360140 1 C Helmer 96 Undercounter Refrigerator Service Manual 15 8 Helmer Supplies Refrigerant non CFC R 134A Chart paper 220366 52 sheets
124. the cooler The temperature in the unit cooler typically varies from the temperature in the chamber so an offset value is used in the control system The unit cooler temperature combined with the offset value establishes the refrigerator setpoint NOTE The probe in the bottle is connected to the monitoring system and senses chamber temperature This probe does not impact the refrigerator setpoint Determining current refrigerator setpoint First confirm Refrigerator has run for at least 24 hours to stabilize chamber temperature Chamber temperature is not fluctuating because of excessive door openings and closings Refrigerator has been placed per location requirements See Operation manual Preventive maintenance has been completed See Operation manual Troubleshooting items associated with chamber temperature have been reviewed Obtain An independent thermometer calibrated and traceable per national standards gt P This is used to secure the probe to the thermometer 1 Remove all probes from the probe bottle 2 Unscrew the cap from the bottle 3 the independent thermometer to the temperature probe and replace them in the bottle so their ends are immersed at least 2 inches 50 mm A On the independent thermometer monitor temperature for about 10 minutes to determine an approximate range From the range calculate an approximate average temperature This 1s the current setpoint Remove t
125. the full initial charge varies by model and power requirements which can be found on the Product Specification label The initial charge is Mois Power requirements initial charge 105 model Any 10 1 oz 286 g Obtain gt Refrigerant of the appropriate type and quantity gt calibrated pressure gauge capable of reading 0 Ib ir to 25 Ib in 0 kPa to 175 kPa 1 Attach the pressure gauge to the refrigeration lines 2 Monitor the low side suction pressure through a full compressor cycle 3 At the end of the next cycle before the compressor stops measure the pressure The pressure varies depending on the ambient air temperature The low side pressure should be 16 Ib in to 18 Ib in 110 kPa to 125 kPa 4 Add refrigerant so the pressure is within the acceptable range Helmer 360140 1 C 6 2 6 3 i Series Models Maintenance 31 Checking the monitoring system backup battery A CAUTION Checking the monitoring system rechargeable backup battery requires that power be disconnected from the refrigerator which may affect the chamber temperature Before testing the alarm take precautions to protect items in the refrigerator from extended exposure to adverse temperatures The monitoring system has a visual indicator to indicate that the monitoring system is running on rechargeable battery power On all 1 C screens the Battery icon will appear in the header bar when the system is running on battery power and the sc
126. then switch the AC ON OFF switch ON Cancel the high temperature alarm by touching the Mute button 9 Check for proper engagement of the latch over the catch The latch in the Access Control cartridge should engage the catch on the refrigerator cabinet and prevent the door from being opened If the door closes fully but can be opened adjust the catch on the cabinet up to engage the latch If the door does not close fully adjust the catch down to allow the door to close 10 Once the refrigerator has reached operating temperature enable the high temperature alarm by touching the Mute button to cancel the alarm N CAUTION Allow the refrigerator temperature to stabilize at the setpoint before moving contents back into the refrigerator Helmer 360140 1 C 6 7 i Series Models Maintenance 37 Supplies Refrigerant non CFC R 134A Chart paper 220366 52 sheets Glycerin solution 400922 1 LED lamp strip 800023 1 3 W NOTE Number of LEDs will vary depending on refrigerator model Monitoring system backup battery One 12 V 7 Ah rechargeable sealed lead acid battery 120628 Chart recorder backup battery One 9 V non rechargeable alkaline or equivalent battery 120218 360140 1 C Helmer 38 Undercounter Refrigerator Service Manual 7 Troubleshooting A CAUTION Review all safety instructions prior to completing troubleshooting recommendations See chapter 2 Safety 7 1 General operation problems Possible Cause A drawer or baske
127. timer bypass switch on the switch may be in the ON circuit board If in the ON position switch to position the OFF position If the problem persists then replace the defrost timer The drain line is gt Confirm the drain tube is free of debris plugged Remove debris if necessary There is excessive Humid air is entering the Confirm the refrigerator is level and the moisture on the doors door is aligned closing tightly and sealing correctly Relative humidity gt Confirm refrigerator location meets around refrigerator is requirements too high Water leaks from Humid air is entering the Confirm the refrigerator is level and the the bottom of the door is aligned closing tightly and sealing refrigerator correctly Excessive water is found Contact Helmer Technical Service to correct in the evaporation tray issues as necessary inside the refrigerator Helmer 360140 1 Horizon Series Models Parts 103 17 Parts This chapter lists most replaceable parts and part numbers It also references parts to schematics See chapter 19 Schematics A CAUTION Before replacing parts that affect chamber temperature take precautions to protect items in the refrigerator from extended exposure to adverse temperatures 17 1 Control and monitoring D The temperature chart recorder can be placed 15 feet from the refrigerator Units may be wall mounted and each includes a battery backup Label Descripti
128. to the wires Reattach the lamp strip to the chamber Connect power to refrigerator and test the new lamp strip 360140 1 C Helmer 32 Undercounter Refrigerator Service Manual 6 4 A A A Cleaning the refrigerator Condenser grill CAUTION gt Disconnect power to the refrigerator to eliminate the potential of electric shock and injury from surrounding components gt Cleaning the condenser grill requires power disconnection Protect items in the refrigerator from extended exposure to adverse temperatures The condenser grill is the finned surface at the rear of the unit It must be kept clean for proper operation Not cleaning condenser grill regularly significantly reduces refrigerator life expectancy In environments where the refrigerator is exposed to excessive lint or dust condenser grill may need to be cleaned more frequently than stated on the preventive maintenance schedule Clean the condenser grill using a soft brush and a vacuum cleaner Exterior Clean glass surfaces with a soft cotton cloth and glass cleaner Clean other exterior surfaces with a soft cotton cloth and a non abrasive liquid cleaner CAUTION The condensate evaporator and the water evaporation tray are hot Interior Clean painted surfaces with mild detergent Clean stainless steel surfaces with a general purpose laboratory cleaner suitable for stainless steel Door gaskets Clean door gaskets with a soft cloth and mild
129. uires power disconnection Protect items from extended exposure to adverse temperatures NOTE During a power failure the backup battery should continue to provide power to the monitoring system Test the power failure alarm to ensure it activates when AC power is lost 1 Disconnect the refrigerator from AC power or switch the AC ON OFF switch OFF The power failure alarm should activate causing the audible alarm to sound and i to appear on the display 2 Reconnect the refrigerator to power The power failure alarm should clear causing F to clear from the display Testing the door open alarm CAUTION Testing the door open alarm requires the door to be left open for an extended period of time Protect items from extended exposure to adverse temperatures Test the door open alarm to ensure that it activates at the expected interval The timer value is set by the factory at 3 minutes and cannot be changed 1 Open the refrigerator door and note the time When the timer value is reached at 3 minutes the door open alarm should activate causing the audible alarm to sound and the DOOR ALARM lamp to flash 2 Close the refrigerator door The door open alarm should clear causing the audible alarm to clear and the DOOR ALARM lamp to stop flashing 360140 1 C 20 20 1 20 1 1 20 1 2 20 1 3 20 1 4 20 1 5 Horizon Series Models Warranty 119 Warranty Rel i Product Warranty USA and Canada For techni
130. uum cleaner Exterior Clean glass surfaces with a soft cotton cloth and glass cleaner Clean other exterior surfaces with a soft cotton cloth and a non abrasive liquid cleaner CAUTION The condensate evaporator and the water evaporation tray are hot Interior Clean painted surfaces with mild detergent Clean stainless steel surfaces with a general purpose laboratory cleaner suitable for stainless steel Door gaskets Clean door gaskets with a soft cloth and mild soap and water solution 360140 1 C Helmer 92 15 6 Helmer Undercounter Refrigerator Service Manual A Clean and refill probe bottles NOTE A replacement kit that includes a probe bottle and glycerin is also available from Helmer CAUTION gt Removing the temperature probe from the bottle may cause the chamber temperature to fluctuate p Protect stored items from extended exposure to adverse temperatures Obtain gt Fresh water bleach solution not provided Solution is a 10 bleach solution 1 part bleach to 9 parts water where bleach means a 5 solution of commercial sodium hypochlorite NaOCI Otherwise use an equivalent oxidizing cleaner disinfectant approved for use by your organization gt Approximately 4 oz 120 ml of product simulation solution per bottle Solution is a 10 1 ratio of water to glycerin CAUTION Temperature probes are fragile Handle with care Remove all probes from bottle Remove bottle from bracket and clean with wat
131. w enough time for the putty to soften Remove the vinyl tube by pulling it downward to separate it from the unit cooler Twisting the tube somewhat makes it easier to pull The drain port on the unit cooler should now be visible Push the excess slack in the tubing out through the hole in the rear of the chamber Remove the top drawer basket or shelf from the chamber While holding the unit cooler cover in place to prevent it from dropping use the socket wrench to remove the four screws securing the cover to the unit cooler Gently lower the cover to avoid damaging the unit cooler fan wiring To reinstall the unit cooler cover 1 2 In the chamber verify the wiring for the unit cooler fan is connected and routed correctly Reinstall the unit cooler fan cover Lift the unit cooler cover into place making sure the front of the cover is behind the lip on the unit cooler Using the socket wrench tighten the screws to secure the cover in place Make sure the screws are tight enough so the unit cooler does not move when bumped If the unit cooler is not tightly in place the tubing will be more difficult to install On the rear insert the vinyl tube through the hole in the refrigerator Push the tube upward at an angle so the end slides over the drain port In the chamber the drain port should be completely covered by the tube In the chamber press the putty around the vinyl tube and partially into the hole to ensure a tight seal Return the
132. wer front panel switch the ON OFF AC power switch to the ON position Switch the battery backup to ON Verify the door is level and the hinges operate smoothly and the door seals tightly Level the door using a shim if necessary On models equipped with the Access Control option adjust the catch on the refrigerator cabinet to engage the Access Control latch on the door Ensure seal integrity by monitoring temperature for a reasonable period 360140 1 C Helmer 22 Undercounter Refrigerator Service Manual 4 9 Hinge reversal glass door and solid door The undercounter door is comprised of an inner frame and outer frame A A gray power cable B and black communication cable C are connected to the display circuit board on the front of the door behind the LCD touchscreen The two cables exit the door at the corner D The length of the cables inside the door is approximately 3 feet and they follow a channel along the top and side of the outer door frame Additional slack has been bundled in the cables E to allow the door hinges to be reversed If the refrigerator is equipped with the Access Control option a third cable F will be included for the Access Control lock NOTE The cable routing is the same for glass doors and solid doors Outer door frame right hinged glass door shown power and communication cables and optional Access Control cable 1 Remove all remaining screws from both sides of the door as
133. xagonal configuration on the inside and no holes outside B Both spring caps have a small hole C circled Each hole receives an end of the spring coil The bushing is placed on the spring cap B v v v v v y The washer is placed on the internal hex cap B Bushing Spring cap Pin Spring Internal hex cap Spring Hinge photograph detail A Lefi hinged orientation spring cap and pin are down and internal hex cap is up When installed the bend in the coil circled must face front B The 6 pieces comprising the spring assembly C Underside of the two caps with holes to receive the spring ends circled D Hex bolt on the hinge housing The spring cap is installed over the hex bolt for right hinged doors The internal hex cap is installed over the hex bolt for left hinged doors E Right hinged orientation spring cap and pin are up and internal hex cap is down When installed the bend in the coil circled must face front 360140 1 C Helmer 26 Undercounter Refrigerator Service Manual 4 11 Installation and pin placement 1 Close the door Reassemble lower left hinge spring assembly on the left side of the door as shown in figure A 2 Orienting the spring cap and bend in the coil outward toward the front Slide the internal hex cap with washer in place into the hinge cavity and over the hex bolt D on the hinge Use a J hook tool to compress the spring to seat the spring cap in the downward position

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