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Refrigerator Service Manual

1. P P E 40 OT PON e 32 wiwa ae 40 Access Control ODIO soe atta Sus uuu masus eee E d g Gae d 41 10 1 2 Control System and 41 DAE 42 Cc 43 a we On ee a 44 cheese one eee ee oe eee 45 10 4 4 Unit 46 TOA S uyu yas pa uma S wa Sp oho ee ee S o qq be Sasa Pee ee ees Sa RSS 47 1043 Do rand HING 22525554854 bum kG Mag P die wx bead Pug ow aunt opa PAL 48 360144 D E ili gt Helmer 11 crar Ra US S ORG Bru mj PR HE 49 11 1 iPF and Models 120 and 125 Configurations 49 Section Ill Horizon Series 51 12 Product Configuration cc es 51 12 1 Install Battery for Backup 1 51 12 2 Schedule Defrost
2. 52 12 2 1 TITIO s usu E REED S IE os 52 1222 Sel c lis uu RE eR bee ean rU Rue EO R hal IARE EDEN a E TR EE EE SE NE 53 12 2 3 Schedule a Defrost Event 53 12 3 External Monitoring 1 54 12 3 1 Connect to Remote Alarm 54 12 4 Move Drawers Shelves and Baskets 55 12 5 Move Slides and Brackets 56 12 6 Level ine 5 2 329 2 876 8 2 Sew hbo eed ama 9878706 ia ka oe OE QS TEC 56 12 7 Optional Adapter Kits for Medication Dispensing Locks 56 OE ur mee cTKTT 57 13 1 Monitor and Controller Interface 57 13 2 Display Minimum and Maximum Monitor Temperature Recordings 58 13 3 Freezer Temperature 59 13 4 Table of Parameters sucede ire uS he a PES a Gorse cn be wb edn Chee eee 59 13 4
3. 28 a T TETTE 28 ro IMENO tee ca bau amu bea eee pee eee eae m one 4 mna 28 8 4 4 Door Gaskels 28 8 4 5 Clean and Refill Probe Bottles __ 29 G0 p sTOUCDSCIOBI 2556 Ee ded Beets ee 2 29 8 5 Defrost the Unit Cooler _ 29 8 6 Unit Cooler Removal and Installation 30 8 6 1 Remove the Unit Cooler Cover 30 8 6 2 Install the Unit Cooler Cover 31 9 E o Drac eee pamanpas mua 32 9 1 General Operation 32 9 2 Chamber Temperature Problems 33 9 3 Alarm Activation Problems 34 94 Tesul jpPioblco6 ee aoe neat ore 38 95 Condensation and Icing Problems 38 QU PANS acc
4. 10 4 References and 11 41 Alarm cuu he u rk po x iie RUE dU Se ge ok ew OR Pew 11 4 2 Regulatory 11 4 3 WEEE Compliance 1 11 NS S E A EEE E E E 12 51 Reli Product Warranty USA and Canada 12 5 1 1 Rapid Resolution BA eoi doses Ronde d 12 9 2 GOMPreSsOl uut acad oa cure E E Ed 12 Su MB i T C r m 12 MEO OE op eno mm 12 5 1 5 Additional Warranty 12 5 2 Outside of USA and 13 Section i Series 14 6 Product Configuration saa x nacre m were eee CO E i eas 14 6 1 Install Battery for Backup 14 6 2 Automatic Defrost
5. 23 7 3 6 Change Factory 0 23 e TESLAN ETRTTITQOOOOTOTIT TDI ye eee digan PP eae 24 7 4 1 Automatic Chamber Temperature Alarm Test 24 7 4 2 Manual Chamber Alarm 25 7 4 3 Power Failure Alarm 25 7 44 Door Open Alarm 25 7 5 Upgrade System 1 26 7 6 Calibrate the Touchscreen sss ose deam etm mask bea OEC EDS S m D ER E Rm xs xo Row eee ee he 26 7 7 View Manufacturer and Product Information 26 225225 ede E 0 de 26 bes we DNUS RR dq AI mig I Eod rd w hu ee 27 8 1 Recharge 27 8 2 Check Monitoring System 27 8 3 Check Optional Access Control System 28 8 4 Clean the Freezer rie ur bug USE qun em 28 8 4 1 Condenser Grill
6. 15 6 3 External Monitoring 15 6 3 1 Connect to Remote Alarm 15 6 4 Move Drawers Shelves and Baskets 16 65 Move Slides and 17 66 Levelthe FIGEZOI AATOMPPITMTCTPPPEPP r T 17 6 7 Optional Adapter Kits for Medication Dispensing Locks 17 360144 D E Helmer f ho MECRRPTPTTP 18 721 HIOMC CI OI u eo wr dane ogee due CE REED 18 7 1 1 Home Screen FunctionS 18 7 2 Temperature Sig ox cid B ue RE UICE ERROR ol a k OS eho ERR E OCULI D p uw E doa d 19 7 3 Temperature Calibration 1 20 7 3 1 Calibrate Monitor 20 732 Qonlrol Sensor OllSel uuu xac acude res Reed Rama tag w mete woes Eidos 21 7 3 3 Calibrate Compressor and Evaporator Probe 22 7 34 Factory Default Settings 22 7 3 5 Restore Factory Default 05
7. o z HA EXTERIOR CONTROL MONITOR BOARD Nc ALARM PEE E mE CONTACTS PROBE CONTROL RTD M __ MONITOR RTD xl HC MONITOR E PROBE a z lt j m UNIT COOLER DEFROST THERMOSTAT JUNCTION BOX R DEFROST SNUBBER HEATER CIRCUIT E UNIT COOLER FAN S DEFROST HEATER LIMIT THERMOSTAT DOOR SWITCH DEFROST HF CONTROL CHART RECORDER CB CHART RECORDER AXb CC PROBE TIMER Door Lock CHART RELEASE Magnet RECORDER Option FROM DC RELAY BATTERY Power Supply i BACKUP L V SOLENOID COIL LER W SOLENOID VALVE oil CONDENSING UNIT FAN MOTOR we MULLION E _ SS seer oo U HEATER L1 OUT L2 OUT 2 EXTERNAL DRAIN FAN O O2 EXTERNAL DRAIN FAN Ol D 9 29 003 o Os RFI FILTER 004 DEFROST CONTROL ONCE DEFROST CONTROL DRAIN LINE T TEMP ACCESS CONTROL TEMP ACCESS CONTROL HEATER s B OQ Os Us GND 121 O Os Os SAW oor O compressor O Ol DRAIN LINE HEATER 8 DRAIN LINE HEATER G CONDENSATE ar C EVAPORATOR 1 O Q 9 MULLION HEA
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9. 63 14 2 Check Monitoring System 64 14 3 Check Optional Access Control System 64 14 4 os deer Eee Re ua dte am Go erede a gs owe be wau dt e rae dose adt bd e d 64 14 4 1 Condenser Grill 64 14 4 2 64 Nue ERCLETTCTTTQUTTTRTUTRTC T Son a ee ee ee ee m ee 64 t444 Door Gaskel eee heeds b W SE SQ 64 14 4 5 Clean and Refill Probe Bottlle _ 65 14 5 Unit Cooler Removal and Installation 65 14 5 1 Remove the Unit Cooler Cover 66 14 5 2 Install the Unit Cooler Cover 66 T9 au are uirga don 3 3 aa wa wisma g uq Aa uses 67 15 1 General Operation 67 15 2 Chamber Temperature Problems 6
10. O O S gate O L2 NEUTRAL TERMINAL STRIP E s e Q 360144 From i C3 J18 Pin 2 F UNIT COOLER JUNCTION BOX R DEFROST HEATER SNUBBER CIRCUIT E UNIT COOLER FAN E S DEFROST HEATER LIMIT THERMOSTAT From i C3 J18 Pind T Drain Line Heater U Mullion Heater J Condensate Evaporator From i C3 J18 Pin4 GROUND TERMINAL 169 2 3 4 5 6 7 9 10 g V AlddNS 9 Q EXTERNAL DRAIN i Series Models 49 gt Helmer i Series Models ER2032 as HELMER INC 400937 1 iM SD Memory Card USB Port LCD Touch Screen i C3 Display PCBA iQ Bezel Mount Components x q a LH L Speaker LCD Back Light i C3 LCD w Touch Screen p a iG USB Data Cable iH Power Cable D j r 01 j TT dos 0 iE ass POWER O 5 221 USB Port 0 0 19 1 J31 pooocos Me USB Port 3 R WG BS
11. Helmer E Freezer Service Manual I Series and Horizon Series Helmer 1 J Helmer 5 Model Group i Series Horizon Series Plasma Storage IPF120 iPF125 Version D HPF120 HPF125 Version D Laboratory iLF120 iLF125 Version D HLF120 HLF125 Version D HELMER SCIENTIFIC 14400 Bergen Boulevard Noblesville IN 46060 USA m C PH 1 317 773 9073 FAX 1 317 773 9082 USA and Canada 800 743 5637 360144 D E ISO 13485 2003 CERTIFIED Helmer Document History Revision Date CO Supersession Revision Description A 11DEC2012 8187 Initial release B 22 APR 2013 8300 Revised electrical schematics for Horizon Series freezer Removed all references to mechanical Access Control Added references to magnetic Access Control Corrected low temperature alarm setting for Horizon Series Removed reference to condenser temperature alarm in C 04 DEC 2013 8953 C supersedes B Added notes to propylene glycol specification to allow for Corrected shipping location of monitoring system backup battery for Horizon Series Horizon Series troubleshooting section equivalent low temperature fluid D 28 MAY 2014 9497 D supersedes Changed part number for TXV valve Items 10 4 1 and 16 4 1 Revised remote alarm contact capacity Updated instruction in Section Items 13 1 through 13 6 3 to reflect use of monitor and control interface with n
12. Bleach is 5 solution of commercial sodium hypochlorite NaOCl Equivalent oxidizing cleaner disinfectant approved by your organization may be substituted 4oz 120mL of product simulation solution per bottle Solution is a 1 1 ratio of water to propylene glycol or equivalent low temperature fluid Clean and refill bottles Remove probe from bottle Remove bottle from bracket Clean bottle with water bleach solution Fill bottle with 4 oz 120 mL of product simulation solution Cap bottle tightly to minimize evaporation Place bottle in bracket Replace probe immersing at least 2 50 mm NO oa oNZ2 i C e Touchscreen Clean touchscreen with a soft dry cotton cloth Defrost the Unit Cooler Defrost events may be scheduled to occur at specific times A defrost event can be triggered on demand without affecting a programmed defrosting schedule 1 Touch i C APPS Temperature Setpoints 2 Touch the Manual Defrost Start button The Defrost icon will appear for the duration of the defrost cycle 3 To cancel touch the Manual Defrost Stop button 29 Helmer i Series Models 8 6 8 6 1 Unit Cooler Removal and Installation If unit cooler cover is not removed as detailed in this procedure the drain port may be damaged Improper drainage may result in excessive icing and freezer s inability to maintain temperature Required tools 5 16 socket wrench gt Tool to push putty away from the dra
13. Helmer E Access Control features HPF125 model shown Label Description Part Number Schematic p Label A Magnetic lock 8001 38 1 AXb B Bezel With chart recorder 800095 1 Without chart recorder 800094 1 C Keypad 800007 1 HM D Backup battery key switch 401220 1 AXa E Backup battery 120628 Control System Display Parts A Left Control board Right Display with touchpad Label Description Part Number Schematic p Label A Control board assembly 800006 1 HA NOTE The display board is sensitive to static electricity and can be damaged by electrostatic discharge Use proper ESD precautions when handling the board 74 Helmer Horizon Series Models Top features Schematic Label Description Part Number Label A Condenser fan motor 230 V 50 Hz 120515 K 230 V 60 Hz 120493 B Compressor 230 V 50 Hz 400672 3 J 230 V 60 Hz 400672 4 C Monitoring system backup battery 120399 HH Not Solenoid valve 220547 W shown Solenoid coil 800096 1 V 360144 D E 75 Helmer Horizon Series Models 16 3 Rear OU Rear features 125 model shown 2 Schematic Label Description Part Number Label A Electrical box Refer to subsequent section s for part numbers D i E Drain line Condensate evaporator assembly includes 400790 2 J condensate evaporator tray and cover F Power cable North American models 800002 1 A European models 800003 1 G Remote alarm con
14. Confirm the hinge cam is not damaged Replace the cam if necessary Change the screen brightness Reset the monitoring system Check the continuity of the probe wiring and connections Secure the connections if necessary Confirm the probe is providing resistance in the range of 86 O to 110 Q Replace the probe if necessary 32 gt Helmer Chamber Temperature Problems Possible Cause Problem The chamber temperature displayed is higher or lower than the actual temperature Upper monitor gt probe s is not calibrated Connections for the upper monitor probe are loose Upper monitor probe wiring is an open circuit Probe bottle is empty or the amount of solution is too low Digital electronics are locked because of an interruption in power Monitor is not calibrated A component is faulty or internal connections are loose The chamber temperature meets an alarm condition but the appropriate temperature alarm is not active Temperature alarm setpoint was changed The compressor runs continuously Freezer setpoint is set gt too low Control probe in the unit cooler is faulty Temperature monitor control board is faulty Compressor starting relay is faulty Defrost timer is faulty gt i Series Models Action Check the chamber temperature calibration Change the calibration if necessary Check the upper monitor probe connections
15. 50 mm Power Failure Alarm NOTE During a power failure the battery should continue to provide power to the monitoring system 1 Switch AC ON OFF switch OFF Audible power failure alarm will activate immediately and PoF F power off will appear on the display 2 Switch AC ON OFF switch ON Audible power failure alarm will cease and PoFF will clear from the display Door Open Alarm Factory set to three minutes Value can not be changed Test the alarm 1 Open freezer door and note the time 2 After three minutes audible alarm will activate and DOOR ALARM lamp will flash 3 Close freezer door Audible door open alarm will cease and DOOR ALARM lamp will stop flashing 62 Helmer Horizon Series Models 14 Maintenance NOTE gt Refer to the operation manual for the preventive maintenance schedule Before performing maintenance protect items in freezer from extended exposure to adverse temperature Allow freezer temperature to stabilize at setpoint after performing service or after extended door opening 14 1 Recharge Refrigerant N CAUTION Review all safety instructions prior to recharging refrigerant Refer to Section I Item 2 Safety Maintenance should only be performed by trained refrigeration technicians NOTE Use only non CFC R 404A refrigerant Full initial refrigerant charge varies by model and power requirements which can be found on the product specification label Powe
16. Test the temperature alarms manually Contact Helmer Technical Service Possible Cause Action Humid air is entering the chamber Heater in the water evaporation tray is faulty Humid air is entering the chamber Unit cooler drain line is damaged or restricted External drain fan is faulty Connection between the unit cooler and the drain line is loose Humid air is entering the chamber Relative humidity around freezer is too high Confirm the freezer is level and the door is aligned closing tightly and sealing correctly Correct issues as necessary Confirm the heater is hot and is drawing the correct current approximately 0 21 A to 0 35 A Replace the heater if necessary Confirm the freezer is level and the door is aligned closing tightly and sealing correctly Correct issues as necessary Confirm the unit cooler drain line is free of debris and is not restricted Remove debris if necessary Confirm the drain tube is free of debris Remove debris if necessary Confirm the external drain fan is running Hold a piece of paper in front of the fan and confirm that the paper is being drawn toward the freezer Confirm the connections are secure Tighten connections if necessary Replace the drain line fan if necessary Confirm the connection is secure Tighten the connection if necessary Confirm the freezer is level and the door is aligned closing tightly and sealing c
17. Humid air is entering the chamber Relative humidity around freezer is too high Not enough time has elapsed since the end of the defrost cycle Drain line is plugged Drain line heater is faulty Defrost heater on the evaporator in the unit cooler is not working Defrost heater on the evaporator in the unit cooler is faulty Horizon Series Models Action b Drain line is plugged Confirm the freezer is level and the door is aligned closing tightly and sealing correctly Correct issues as necessary Confirm the heater is hot and is drawing the correct current approximately 0 21 A to 0 35 A Replace the heater if necessary Confirm the freezer is level and the door is aligned closing tightly and sealing correctly Correct issues as necessary Confirm the unit cooler drain line is free of debris and is not restricted Remove debris if necessary Confirm the drain tube is free of debris Remove debris if necessary Confirm the external drain fan is running Hold a piece of paper in front of the fan and confirm that the paper is being drawn toward the freezer Confirm the connections are secure Tighten connections if necessary Replace the drain line fan if necessary Confirm the connection is secure Tighten the connection if necessary Confirm the freezer is level and the door is aligned closing tightly and sealing correctly Confirm freezer location meets
18. i C Settings 2 Enter the Settings password 3 Touch Temperature Setpoints 4 Touch or on the Temperature Setpoint spin box The setpoint is the temperature at which the freezer operates 5 Touch or the Hysteresis Setpoint spin box The hysteresis setpoint is the allowable fluctuation in temperature relative to the temperature setpoint Alower hysteresis setpoint will limit the temperature variation to a smaller range Ahigher setpoint will allow the temperature to vary across a larger range NOTE Hysteresis is factory preset and should not be changed unless directed by Helmer Technical Service 6 Touch or on the Delay on Start Up spin box Compressor startup is delayed to allow the i C monitoring and control system to start first 7 Touch or on the Duty Cycle of Control Relay during Probe Failure spin box The duty cycle is the percentage of time the compressor will run in the event of a temperature control probe failure 19 Helmer i Series Models 7 3 7 3 1 360144 D E 8 Touch plus or on the Defrost Time spin box gt The defrost time is the maximum allowable duration which the defrost probe will heat the evaporator This value is set to prevent the chamber temperature from increasing excessively due to a long defrost cycle Setting Initial Factory Value Temperature Setpoint 30 0 C Hysteresis Setpoint 2 0 C Delay on Start Up 2 minutes Duty Cycle of Control Relay d
19. Replace the electrical box cover Switch the AC ON OFF switch ON Turn the Alarm Disable key switch ON Press the Mute button to disable the high temperature alarm while freezer reaches operating temperature ES r 11 TN NY Defrost controller with defrost times set to On position at 12 00 8 00 4 00 53 Helmer Horizon Series Models 12 3 12 3 1 360144 D E External Monitoring Devices The remote alarm interface is a relay switch with three terminals gt Common Normally Open NO Normally Closed NC Terminals are dry contacts and do not supply voltage Interface circuit is either normally open or normally closed depending on terminals used Requirements for your alarm system determine which alarm wires must connect to terminals CAUTION Theinterface 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 external power supply exceeding 30 V RMS or 60 V 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 terminals on the remote alarm interface have the following maximum load capacity gt 0 25 Aat 30 V RMS 0 25 Aat 60 V DC Connect to Remote Alarm Interface Switch AC ON OFF
20. Secure the connections if necessary Check the continuity of the probe wiring Replace the probe if necessary Check the level of product simulation solution in the bottle Clean and refill the bottle if necessary Refill the bottle with new solution Reset the monitoring system Confirm the upper monitor probe is reading correctly Calibrate the upper monitor probe if necessary Contact Helmer Technical Service Check the current setpoints for the temperature alarms Change the setpoints if necessary Confirm the setpoint is set within the operating range and change it if necessary Replace the probe if necessary Confirm the temperature controller or monitor control board is operating correctly Replace it if necessary Confirm the relay is operating correctly Replace the relay if necessary Replace the defrost timer 33 Helmer 9 3 360144 D E Possible Cause Problem The chamber temperature does not stabilize at the freezer setpoint Temperature monitor control board is faulty Condensing unit fan is gt not running Unit cooler fan is not running Compressor motor has seized Control probe is faulty gt Refrigerant level is too gt Compressor starting relay is faulty Condenser grill is dirty Circulation in the chamber is not adequate Ambient air temperature around the freezer is too high A component is faulty or internal co
21. a password 2 00 pm 01 01 2010 27 1 C Lower Temp 7 1 1 Home Screen Functions NOTE Refer to the i C User Guide for options available on all i C screens View current temperature readings View the current system time and date Access any of the five customizable applications touch 1 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 battery power Mute audible alarms Turn the chamber light on and off View a graph of the chamber temperature 360144 18 Helmer i Series Models 7 2 360144 D E Temperature Settings Temperature setpoint values are programmed at the factory Setpoints can be viewed and changed through the i C monitoring and control system To view temperature setpoints touch Home i C APPS Settings Details for each setpoint are displayed Tem indir ar mr 2 00 pm 833297 01 01 2010 Gonto Sengar Prot 30 0 C Evaperater Defrost 30 0 Temperature Controller Programs screen NOTE Default chamber temperature setpoint is 30 0 C Change the setpoint if Your organization requires a chamber temperature other than 30 0 C NOTE If the Settings screen is password protected or if viewing settings for the first time enter factory default password of 1234 Perform the following 1 Touchi C APPS
22. locate the remote alarm terminals 3 Connect remote alarm wires to appropriate terminals according to requirements for your alarm system 4 Use a cable tie to relieve strain on alarm wires as necessary Switch AC ON OFF switch ON Switch battery switch ON 6 Touch Mute to disable the high temperature alarm while freezer reaches operating temperature 15 P Helmer i Series Models 6 4 360144 D E Move Drawers Shelves and Baskets Helmer Storage features CAUTION Before moving drawers ensure they are completely empty for safe lifting gt Maximum basket drawer or shelf load is 100 Ibs 46 kg NOTE Before moving storage components protect stored items in freezer from extended exposure to adverse temperature Remove a drawer or basket 1 Pull drawer or basket out until it stops 2 Tiltthe front of the drawer or basket upward 3 Pull drawer or basket free of the slides Install a drawer or basket 1 Align end guides on drawer or basket with the slides 2 Gently push drawer or basket into chamber until it stops 3 Pull drawer or basket out until it stops check for smooth operation Remove a shelf 1 With one hand lift front edge of the shelf from the front brackets 2 With the other hand reach under the shelf and bump rear edge of the shelf upward to disengage rear brackets Install a shelf 1 Insert shelf into chamber placing it on brackets 2 Gently bump rear edge of the shelf downwar
23. message appears 5 When displayed temperature reaches the alarm setpoint temperature reading turns red 6 When completed Test Complete appears 7 Touch Home i C APPS Information Logs Event Log Touch the event to view event details 8 Observe the temperature at the time of the low temperature alarm event Compare this to the alarm setpoint If values do not match refer to Section Il Item 9 Troubleshooting Test the high alarm 1 Identify current setting for high alarm setpoint 2 Touch Home i C APPS Temperature Alarm Test 3 Touch High Alarm Test 4 Test Probe Warming message appears 5 When displayed temperature reaches the alarm setpoint the temperature reading turns red 6 When completed Test Complete appears 7 Touch Home i C APPS Information Logs Event Log Touch the event to view event details 8 Observe the temperature at the time of the high temperature alarm event Compare this to the alarm setpoint If values do not match refer to Section Il Item 9 Troubleshooting 24 Helmer i Series Models 7 4 2 7 4 3 7 4 4 360144 D E Cancel the test 1 Touch Home i C APPS Temperature Alarm Test 2 Touch Cancel Test NOTE When cancelling an automatic test the message indicating the test is in progress clears immediately If a setpoint was reached before the test was cancelled the alarm activates and clears as described earlier Manual Chamber Alarm Test NOTE Before
24. or replace the monitor control board Replace the speaker Contact Helmer Technical Service Verify that audible alarms are not muted If time remaining is greater than five minutes change MUTE timer value to five minutes and wait until timer resets 34 Helmer i Series Models Problem Possible Cause Action The freezer meets Monitor control board Replace parts with those included in the control alarm condition but is faulty board kit or replace the monitor control board the appropriate alarm Alarm setpoint was Check the current setpoints for the alarms IS not active changed A component is Contact Helmer Technical Service faulty or internal connections are loose The High Temperature Connections for the Check the upper monitor probe connections alarm activates when upper monitor probe Secure the connections if necessary the door is opened are loose then clears shortly gt Test the probe Replace the probe if necessary after the door is is faulty closed Unit cooler fan Test the door switch and unit cooler fan continues to run while connections Secure the connections if necessary the door is open Replace the door switch or fan motor if necessary Probe bottle is empty Check the level of product simulation solution in the bottle Clean and refill bottle if necessary High temperature Check the setpoint Change the setpoint if alarm setpoint is set necessary too low
25. parts with those included in the control board kit or replace the monitor control board Contact Helmer Technical Service Confirm the circuit board and line connections are functioning correctly Replace parts with those included in the control board kit or replace the monitor control board Contact Helmer Technical Service Check the condenser grill Clean if necessary Confirm freezer location meets requirements Check refrigeration lines for leaks and repair if necessary Check the refrigerant level Recharge refrigerant if necessary No action necessary Confirm the probe bottle is full of solution and the probe is placed in the bottle correctly Contact Helmer Technical Service Confirm the monitor probe is reading correctly Calibrate the probe if necessary 71 Helmer 15 4 360144 D E Problem There is excessive water in the water evaporation tray inside the lower compartment in the back of the unit There is excessive ice in the chamber There is excessive moisture on the door After a defrost cycle no water flows into the water evaporation tray Condensation and Icing Problems Possible Cause Humid air is entering the chamber Heater in the water evaporation tray is faulty Humid air is entering the chamber Unit cooler drain line is damaged or restricted External drain fan is faulty Connection between the unit cooler and the drain line is loose
26. probe is providing accurate temperature readings Confirm the probe is providing resistance in the range of 98 O to 110 O Replace the probe if necessary Check the refrigeration lines for leaks and repair them if necessary Check the refrigerant level Recharge the refrigerant if necessary Refill the probe bottle Check the condenser grill Clean the grill if necessary Check if there are any items that may obstruct air flow and remove them if necessary Confirm the freezer is placed appropriately Contact Helmer Technical Service 69 Helmer 15 3 360144 D E Alarm Activation Problems Problem Possible Cause The freezer is in an alarm condition but the appropriate alarm is not audible or active Alarm system is faulty gt is faulty Alarm buzzer is faulty gt A component is Monitor control board gt faulty or internal connections are loose Alarm Disable key is gt in the OFF position Alarm setpoint was gt changed Connections for the monitor probe are loose The High Temperature alarm activates when the door is opened then clears shortly after the door is closed Monitor probe is faulty Unit cooler fan continues to run while the door is open Probe bottle is empty gt High temperature alarm setpoint is set too low A component is faulty or internal connections are loose Outlet connection is gt faulty Power cord is faulty
27. socket wrench to remove four screws securing the unit cooler cover c Carefully lower unit cooler cover to avoid damage to the fan wiring Install the Unit Cooler Cover 1 Verify unit cooler wiring is connected and routed correctly a Wiring should be routed above copper tube inside the unit cooler b Reconnect wires if they have separated 2 Attach unit cooler cover a Lift unit cooler cover into place b Front edge of the cover should be behind the unit cooler case c Use socket wrench to install four screws to secure the unit cooler cover 3 Insert the drain tube and drain hose through the hole in the cabinet a Push drain tube and drain hose upward at an angle toward the unit cooler drain port b Pivot the drain tube and drain hose downward then push the assembly upward c Inthe chamber push the drain hose onto the drain hose 4 Attach the drain tube to the fan tube 5 Insert the drain line heater in the drain tube a Insert the heater at an upward angle b The black heating element should no longer be visible 6 the back of the cabinet press putty around the drain tube and drain line heater 7 Reinstall top drawer basket or shelf if previously removed NOTE For iPF models reinstall the Cold Shield panel 8 Reattach the pipe straps to secure the drain tube to the cabinet 9 Switch AC ON OFF switch ON Switch battery switch ON 10 Touch Mute to disable the high temperature alarm while freezer reaches operating temperature
28. switch OFF Disconnect the battery On the electrical box locate the remote alarm terminals Connect remote alarm wires to appropriate terminals according to requirements for your alarm system Use a cable tie to relieve strain on alarm wires as necessary owitch AC ON OFF switch ON Reconnect the battery Press the Mute button to disable the high temperature alarm while freezer reaches operating temperature NO oo 0 54 Helmer Horizon Series Models 12 4 360144 D E Move Drawers Shelves and Baskets Storage features CAUTION Before moving drawers ensure they are completely empty for safe lifting gt Maximum basket drawer or shelf load is 100 Ibs 46 kg NOTE Before moving storage components protect stored items in freezer from extended exposure to adverse temperature Remove a drawer or basket 1 Pull drawer or basket out until it stops 2 Tiltthe front of the drawer or basket upward 3 Pull drawer or basket free of the slides Install a drawer or basket 1 Align end guides on drawer or basket with the slides 2 Gently push drawer or basket into chamber until it stops 3 Pull drawer or basket out until it stops check for smooth operation Remove a shelf 1 With one hand lift front edge of the shelf from the front brackets 2 With the other hand reach under the shelf and bump rear edge of the shelf upward to disengage rear brackets Install a shelf 1 Insert shelf into chamber plac
29. testing alarms protect items in freezer from extended exposure to adverse temperature Obtain 1 402 120 mL glass of product simulation solution 1 1 ratio of water to propylene glycol equivalent low temperature fluid NOTE Temperature probes are fragile handle with care Test the high alarm 1 Identify setting for high alarm setpoint 2 Place the glass of product simulation solution in the freezer 3 When the product simulation solution has stabilized at the chamber temperature remove the solution from the freezer 4 Remove the monitor probe from the probe bottle and insert into the product simulation solution Observe the temperature on the i C display at which the high temperature alarm sounds 6 Compare the temperature at which the alarm sounds to the high alarm setpoint If values do not match refer to Section Item 9 Troubleshooting 7 Remove probe from product simulation solution 8 Place monitor probe in probe bottle immersing it at least 2 50 mm Power Failure Alarm Test NOTE During a power failure the power failure alarm sounds and the battery provides power to the monitoring system 1 Change Power Failure delay setting to O minutes a Touch Home Settings Alarm Settings b Touch or on the Power Failure spin box to change the value to 0 2 Switch AC ON OFF switch OFF Power failure alarm will activate immediately 3 Switch AC ON OFF switch ON Power failure alarm will clear an
30. 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 i Series model compressor warranty period is five 5 years Horizon Series model compressor warranty period is three 3 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
31. through the hole in the cabinet a Push drain tube and drain hose upward at an angle toward the unit cooler drain port b Pivot the drain tube and drain hose downward then push the assembly upward c Inthe chamber push the drain hose onto the drain hose 4 Attach the drain tube to the fan tube 5 Insert the drain line heater in the drain tube a Insert the heater at an upward angle b The black heating element should no longer be visible 6 Onthe back of the cabinet press putty around the drain tube and drain line heater 7 Reinstall top drawer basket or shelf if previously removed NOTE For HPF models reinstall the Cold Shield panel 8 Reattach the pipe straps to secure the drain tube to the cabinet 9 Switch AC ON OFF switch ON Reconnect the battery 10 Press the Mute button to disable the high temperature alarm while freezer reaches operating temperature 66 P Helmer Horizon Series Models 15 Troubleshooting A CAUTION Review all safety instructions prior to troubleshooting Refer to Section I Item 2 Safety 15 1 General Operation Problems Problem Possible Cause Action A drawer does not Debris in the drawer Pullthe drawer out and confirm the slides are free slide easily slides of debris Clean if necessary Drawer slides not Using a multi purpose grease lubricate the lubricated Ice buildup in the drawer slides Drawer is misaligned Confirm both slides for the drawer are mounted at or not le
32. 1 View Alarm Setpoints and Offset Values 59 13 4 2 Temperature 59 13 5 Temperature Alarm Setpoints 60 13 5 1 High Temperature 60 13 5 2 Low Temperature Alarm Setpoint 60 13 6 Temperature Calibration Setpoints 4 60 13 0 0 Montor s oues eu uer tii ERE RSS EE ehh oe cues SEE aye E eee se DE Ss 60 15 62 Contro Sensor OBSOL x xu aum vu sas aaa u hua bua ira ees Wa Qi kus d xo ten 61 13 6 3 Hysteresis a a a Se a a a pews os 61 13 7 TestAlarms 62 13 7 1 Chamber Temperature 62 Tous Power Fallure 1E N Ga hace HR 62 13 7 3 Door Open 62 14 63 14 4 Recharge
33. 20 model 125 model 120 model 125 model 120 model 125 model 120 model 125 model 120 model 125 model 400414 1 400414 2 400584 2 400584 1 400541 3 400541 1 400541 4 400541 2 400890 1 400890 2 400541 3 400541 1 400541 4 400541 2 i Series Models Helmer i Series Models 10 4 3 Door and Hinge A Helmer 6 G H J Door and hinge features iPF125 model shown Label Description Part Number B Upper hinge assembly includes pin and bracket Left hinge 400960 2 Right hinge 400960 1 Upper hinge bearing 220541 Door gasket 320726 1 Door bumper 220441 Lower hinge cam quantity 2 320742 1 Lower hinge bearing 220375 Door stop 320763 1 Ground strap 120688 Lower hinge bracket Right hinge 400377 1 Left hinge 400377 2 c i rigimimio o 360144 D E 48 Helmer 11 Schematics 11 1 IPF and iLF Models 120 and 125 Configurations MAIN POWER 230V 50 Hz 208 230 60 Hz A POWER CORD 7 BREAKERS 230V ONLY MAIN POWER SWITCH L2IN GND D RFI Filter L2 OUT L1 OUT _ Solid State 1 E i C3 Power PCBA O i C3 J18 Pin 9 O O L1 TERMINAL STRIP gg O Q Q O COMPRESSOR Q O E i C3 Power PCBA
34. 31 Helmer 9 A CAUTION 9 1 360144 D E Troubleshooting General Operation Problems Problem A drawer does not slide easily The door does not open easily The monitor display is hard to read The alarm monitor is not responding Probe Failure is displayed on the monitor Possible Cause Debris in the drawer slides Drawer slides are not lubricated Ice buildup in the drawer slides Drawer is misaligned or not level Drawer slide is faulty Debris in the hinges Door hinges are not lubricated Hinge cam is faulty Screen brightness is set too low Digital electronics are locked because of an interruption in power Defrost probe or monitor probe wiring is an open circuit i Series Models Review all safety instructions prior to troubleshooting Refer to Section I Item 2 Safety Action gt gt gt gt lt gt gt gt gt gt Pull the drawer out and confirm the slides are free of debris Clean if necessary Using a multi purpose grease lubricate the bearings in the slides Pull the drawer out and confirm the slides are free of ice De ice if necessary Confirm both slides for the drawer are mounted at the same height Confirm the slide is operating correctly Replace if necessary Confirm the hinges are free of debris Clean the hinges if necessary Using a general purpose grease lubricate the pivots in the hinges
35. 3L c Q ER POWER iA To i C3 Control PCBA mte USB Port 4 CHART p m ou g iT 4 Hp e pus B Control Probe O BOOTLOAD RTDA 9 AN4 E IPE 25 on e RXD P ON mgr m Upper Monitor Probe 51 S 6105 ANALOG IO ji LATI J9 O DIN4 LOS QU e HELMER INC iL 5 DIS 400936 1 SERIAL NUMBER L Evap Defrost LEO e j Control Probe 1 215 S iJ ote CII Ol 3 sie Pp Lower Monitor Probe M DOOR SWITCH I at iL u Condensor RTD 2 ALARM Discharge Probe SOLENO D COM NC RELAYS RELAY4 RELAYZ RELAY2 RELAYI no cos xo ncl no no so NO 2 J18 EXTERIOR ALARM CONTACTS O 3 28VDC To Unit Cooler Fan To Condensate Evaporator To Evaporator Defrost Heater L COMPRESSOR SSR HELMER INC 400956 1 V V I N V 15 V 1B ar on RMS 1 s 10 pa i C3 Power PCBA V SLA Chorging BATTERY KEY SWITCH ACCESS CONTROL OPTION AXa CA CHART RECORDER Option L l P iB MONITOR CC CB BATTERY CHART CHART BACKUP RECORDER RECORDER BATTERY Lu PROBE BACKUP AXb Magnetic Lock Access Control Option CONDENSING UNIT FAN MOTOR 360144 D E 50 Helmer Horizon Se
36. 41 Left hinge 400377 2 Ground strap 120688 T Qimimioio 360144 D E 81 Helmer 17 Schematics Horizon Series Models 17 1 HPF and HLF Models 120 and 125 Configurations without Access Control AUDIBLE ALARM HE F UNIT HO TEMP CONTROL XFMR ALARM KEY No Access Control SWITCH HA 6 EXTERIOR CONTROL MONITOR BOARD NC ALARM HB TEMPERATURE 69 5 CONTROL PROBE CONTROL RTD MONITOR c RTD HC MONITOR DOOR DOOR SW CA CHART C RECORDER COMPRESSOR e SL DEFROST THERMOSTAT _ E COOLER JUNCTION BOX SNUBBER CIRCUIT E UNIT COOLER FAN S DEFROST HEATER LIMIT THERMOSTAT ITCH DEFROST HF CONTROL 7 F x Z FAN MOTOR dH K CONDENSING UNIT nd It CHART RECORDER PROBE CHART RECORDER BATTERY BACKUP V SOLENOID COIL W SOLENOID VALVE P 2m U MULLION HEATER O O O 2 EXTERNAL DRAIN FAN O 59 G AVA T DRAIN LINE HEATER G AWVS 6 G CONDENSATE EVAPORATOR 4 DEFROST CONTROL O 5 TEMP CONTROL PSU O O 6 CHART RECOR
37. 60144 D E Helmer General Information Section I General Information 1 1 1 2 1 3 1 4 1 5 360144 D E About this Manual Intended Audience This manual is intended for use by end users of the freezer and authorized service technicians Model References Generic references are used throughout this manual to group models that contain similar features For example 125 models refers to all models of that size iPF125 HPF125 iLF125 HLF125 This manual covers all upright freezers which may be identified singly by their size or by their respective Series Copyright and Trademark Helmer i Series i C s Horizon Series and Rel i are registered trademarks or trademarks of Helmer Inc in the United States of America Copyright 2015 Helmer Inc All other trademarks and registered trademarks are the property of their respective owners Helmer Inc doing business as DBA Helmer Scientific and Helmer Confidential Proprietary Notices Use of any portion s of this document to copy translate disassemble or decompile or create or attempt to create by reverse engineering or otherwise the information from Helmer Scientific products is expressly prohibited Disclaimer This manual is intended as a guide to provide the operator with necessary instructions on the proper use and maintenance of certain Helmer Scientific products Any failure to follow the instructions as described could result in im
38. 7 360144 D E gt Helmer 15 3 Alarm Activation Problems 70 15 4 Condensation and Icing Problems 72 shee ie 73 FIO PPS sss ps 73 16 1 1 Access Control 74 16 1 2 Control System Display 74 15 2 EM Eee ee Swe sees EE EUNT RES E RUE E 75 aca neh esac be eee wie wS a ee eve 76 16 3 1 Electrical 77 MOM Ol 78 16 4 1 Unit Cooler 79 osa oro rmmrrRR 80 16 4 3 Door and Hinge o on RE dit qug de d 81 17 acaso ee ica m msds di aa SCRI ebd SUE BE peer 82 17 1 HPF and HLF Models 120 and 125 Configurations without Access Control 82 17 2 HPF and HLF Models 120 and 125 Configurations with Access Control 83 3
39. 7 3 3 7 3 4 360144 D E temperature 6 Touch Home to return to home screen Calibrate Compressor and Evaporator Probe i Series Models The compressor and evaporator temperature probes have been factory calibrated Changing the calibration settings is not typically necessary and should not be performed unless directed by Helmer Technical Service Factory Default Settings Settings listed below may be simultaneously returned to factory default values NOTE The factory default settings may not be the same as the settings that were factory calibrated before the freezer was shipped Setting Home Screen Application Icons Display Brightness Password for Settings screen Sounds Alarm Volume Alarm Tone Temperature Calibration Values Unit ID Date Format Day Month Year Time Format Minute Hour AM PM Language Temperature Units Password Protection for Settings screen Temperature Graph Screensaver Access Control optional as Home Page High Temperature Alarm Setpoint High Temperature Alarm Time Delay Low Temperature Alarm Setpoint Low Temperature Alarm Time Delay Power Failure Alarm Time Delay Probe Failure Alarm Time Delay Restored Value i C APPS Temperature Alarm Test Temperature Graph Information Logs Download High 3 symbols 1234 On 9 On Values previously entered during setup Serial number entered at factory MM DD YYYY Not affected maintained in real time clock 12 hou
40. A component is Contact Helmer Technical Service faulty or internal connections are loose The freezer is Outlet connection is Verify power at the outlet Repair the original connected to power faulty outlet or connect to a different outlet if necessary but the AC Power Power cord is faulty Confirm the power cord is connected securely Failure alarm is active Secure the power cord if necessary ON OFF AC power Replace the ON OFF AC power switch switch located inside the front lower panel is faulty ON OFF AC power Turn ON OFF AC power switch to the ON switch is OFF position A component is Contact Helmer Technical Service faulty or internal connections are loose A component is Contact Helmer Technical Service faulty or internal connections are loose Circuit breaker is Resetorreplace the circuit breaker tripped 360144 D E 35 Helmer 360144 D E Problem The Door Open alarm is activating sporadically All alarms are activating sporadically i Series Models Possible Cause Action Doors are not closing completely Doors are closing but gt not sealing completely gt Connections for the door switch are faulty Door switch is faulty gt Temperature monitor controller board is faulty Door Open Timeout is set to zero causing the alarm to activate immediately when the door is opened Alarm system is faulty gt Monitor control boa
41. Controller Page Description Enable or disable the temperature controller screen Factory settings may be viewed and changed Contact Helmer Technical Service to verify if changing factory settings is necessary and for instructions in accessing Factory Settings screen 23 Helmer i Series Models 7 4 7 4 1 360144 D E Test Alarms Test alarms to ensure they are working correctly The freezer has alarms for chamber temperature compressor temperature door open time power failure low battery and power failure Automatic Chamber Temperature Alarm Test Temperature 2 00 pm 01 01 2010 30 0 C High Alarm Test Alarm Condition Test Complete Low Alarm Test Cancel Test NOTE be aborted by touching Cancel Test Testtakes less than five minutes Ifthe temperature alarm test does not automatically complete within two minutes restart the i C monitoring system When performing an automatic temperature alarm test the Peltier device heats or cools the monitor probe until the high or low alarm setpoint is reached An event is added to the Event Log to indicate a temperature alarm was activated The Alarm Test icon is displayed on the Temperature Graph to indicate the temperature alarm was test induced Test the low alarm 1 Identify current setting for low alarm setpoint 2 Touch Home i C APPS Temperature Alarm Test 3 Touch Low Alarm Test 4 Peltier Test Probe Cooling
42. DER XFMR O 7 O 8 DRAIN LINE HEATER O Qa OS 9 MULLION HEATER O10 O11 12V DC POWER SUPPLY e O 12 CONDENSATE EVAPORATOR L1 TERMINAL TERMINAL STRIP STRIP GROUND TERMINAL Q EXTERNAL DRAIN FAN 213 12 22 6 S K e 3 0 2 3 23793 298 gt 5 5 a o 9 5 85 65 5 9 JS 5 585 3 8 9 O UJ 360144 D E L CHART RECORDER XFMR L1 OUT L2 OUT D RFI FILTER EXTERNAL DRAIN FAN DEFROST CONTROL TEMP CONTROL PSU LIIN GND L2IN COMPRESSOR DRAIN LINE HEATER C MULLION HEATER MAIN POWER SWITCH 12V DC POWER SUPPLY CONDENSATE EVAPORATOR B CIRCUIT BREAKER A POWER CORD NEMA 6 15 MAIN POWER 230V 50 Hz 208 230V 60 Hz 82 Helmer Horizon Series Models 17 2 HPF and HLF Models 120 and 125 Configurations with Access Control OPTION TO CHART MAGNET KEY RECORDER SWITCH AXe MONITOR BATTERY BACKUP AUDIBLE ALARM HE SLA Chorging HELMER INC 400956 1 AXd Power Supply PCBA Access Control Option Only Door Access Keypad CA
43. E LIABLE FOR ANY INDIRECT INCIDENTAL CONSEQUENTIAL OR SPECIAL DAMAGES INCLUDING WITHOUT LIMITATION DAMAGES RELATED TO LOST REVENUES OR PROFITS ORLOSS 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 13 Helmer i Series Models Section Il i Series Models 6 1 Product Configuration Install Battery for Backup Power The monitoring system and chart recorder each have a battery system enabling a period of continuous operation if power is lost NOTE The optional Access Control system uses the monitoring system battery for backup power in the event of a power failure The monitoring system will start on battery power alone If the freezer was previously not connected to AC power and the battery is 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 for the monitoring sy
44. Optional Access Control System Battery During an AC power failure the Access Control backup battery provides backup power to power the magnetic Access Control lock Test the Access Control backup battery to ensure it is working properly Check the battery 1 Ensure monitoring system Access Control battery key switch is switched ON 2 Switch AC ON OFF switch OFF 3 Attempt to open the cabinet door Ifthe door remains locked the battery is functional door does not remain locked replace the battery 4 Switch AC ON OFF switch ON 8 4 Clean the Freezer 8 4 1 Condenser Grill N CAUTION Disconnect freezer from AC power when cleaning condenser grill In environments where freezer is exposed to excessive lint or dust condenser grill may require cleaning more frequently than stated in preventive maintenance schedule Clean the condenser grill using a soft brush and a vacuum cleaner 8 4 2 Exterior Clean exterior surfaces with soft cotton cloth and non abrasive liquid cleaner 8 4 3 Interior Clean painted surfaces with mild detergent Clean stainless steel surfaces with a general purpose laboratory cleaner suitable for stainless steel 8 4 4 Door Gaskets Clean with soft cloth and mild soap and water solution 360144 D E 28 Helmer i Series Models 8 4 5 8 4 6 8 5 360144 D E Clean and Refill Probe Bottles Obtain Fresh water bleach solution not provided 1 9 ratio of bleach to water
45. ROW button Increases a temperature setting G DOWN ARROW Decreases a temperature setting Also mutes the audible alarm for button five minutes H SEL button Toggles between alarm monitor and control modes SET lamp Indicates when temperature setpoint or alarm setpoint is being changed J SET button Allows settings to be selected prior to changing settings K CONTROL lamp Indicates when the reading from the control probe is displayed L MONITOR lamp Indicates when the display is showing temperature readings from the monitor probe Also indicates when alarm setpoints are being changed 360144 D E 57 Helmer Horizon Series Models 13 2 Display Minimum and Maximum Monitor Temperature Recordings NOTE gt This feature is standard on Horizon Series models with serial numbers of 2015494 or higher Some exceptions may exist For confirmation on your unit please contact Helmer Technical Service Units that do not include the minimum and maximum recording feature will not display C or F when entering the program mode The minimum and maximum recording feature allows the user to view a minimum temperature occurrence and a maximum temperature occurrence within a given period of time The timer provides a time reference in which those temperatures occurred NOTE The following steps only apply to the monitor probe 1 View minimum temperature recording a Press and hold the Down Arrow button for 1 second and listen
46. TER rio 9 MULLION HEATER MAIN POWER CE SWITCH gt es som C Onl 12v DC POWER SUPPLY O On 12V DC POWER SUPPLY ze Q12 CONDENSATE EVAPORATOR 12 CONDENSATE EVAPORATOR B L1 L2 CIRCUIT TERMINAL TERMINAL BREAKER STRIP STRIP GROUND TERMINAL Q EXTERNAL DRAIN FAN 116 2 4 56 7 8 9 10 12 22 Teen oss 8 e TERI POWER CORD 5 o NEMA 6 15 85268 5 MAIN POWER 7 9 230V 50 Hz END MANUAL 208 230V 60 Hz 360144 D E 83 HELMER SCIENTIFIC 14400 Bergen Boulevard Noblesville IN 46060 USA PH 1 317 773 9073 FAX 1 317 773 9082 www helmerinc com S C E N T F C
47. W Solenoid coil 800096 1 V 360144 D E 42 Helmer i Series amp Models 10 3 Rear G C J D E K F L M Rear features iPF120 model shown Schematic Label Description Part Number Label A Electrical box Refer to subsequent section s for part numbers C Drain line heater 120485 T D jDrilie 0 2 000000 95 04 E Condensate evaporator assembly includes 400790 2 J condensate evaporator tray and cover F Power cable North American models 800002 1 A European models 800003 1 G Remote alarm contacts E H RJ 45 Ethernet port 800008 1 IF USB port 120633 IE J RS 232 serial port optional Battery backup switch 120202 IC L Main power switch 120478 C M Circuit breaker 12 A 120220 B N CAUTION Do not remove the cover from the condensate evaporator tray 360144 D E 43 gt Helmer i Series Models 10 3 1 Electrical Box Electrical box features iPF120 model shown N CAUTION Disconnect the freezer from AC power before opening the electrical box 360144 D E NOTE Schematic Description Part Number Label Power supply board 800035 1 ID Compressor relay 120426 L Power line filter 120400 D i C control board 800034 1 IA The i C control board is sensitive to static electricity and can be damaged by electrostatic discharge Use proper ESD precautions when handling the board 44 Helmer i Series Models 10 4 Interior Helme
48. affect freezer setpoint Obtain Calibrated reference thermometer independent and traceable per national standards Tapeorwire ties to attach thermometer to monitor probe 20 Helmer i Series Models 7 3 2 360144 D E Calibrate probes 1 Remove upper monitor probe from the upper probe bottle 2 Unscrew the cap from the bottle 3 Attach the thermometer to the monitor probe and place them in the bottle The probe and thermometer should be immersed at least 2 50 mm Close the door and allow the chamber temperature to stabilize for 10 minutes Observe and note the thermometer temperature Touch i C APPS Settings Temperature Calibration Touch or on the Upper Temperature spin box to increase or decrease the value to match the measured value The message New Setting Saved appears next to the spin box Jo oc NOTE After saving the new temperature value the displayed temperature may not match the new value This is normal 9 Remove thermometer from probe 10 Replace bottle cap ensuring a tight fit 11 Place probe in bottle immersing at least 2 50 mm Control Sensor Offset The temperature controller senses unit cooler temperature through the control probe in the unit cooler The unit cooler temperature typically varies from the chamber temperature so an offset value is used by the control system to compensate for the difference The temperature controller adjusts chamber temperature aroun
49. ant charge varies by model and power requirements which can be found on the product specification label Power M Model Requirements Initial Charge 120 and 125 models Any 29 0 oz 822 g Obtain gt Refrigerant Calibrated pressure gauge 0 psi to 220 psi 0 kPa to 1520 Add refrigerant 1 Attach pressure gauge to the fittings on the refrigeration lines 2 Monitor the low side suction pressure through a full compressor cycle 3 Measure the pressure at the end of the next cycle immediately before the compressor stops NOTE Pressure varies depending on ambient air temperature 4 Addrefrigerant Check the pressure on the high side and the low side gt Low side 2 psi to 4 psi 14 kPa to 28 kPa High side 180 psi to 220 psi 1241 kPa to 1520 kPa 5 Remove pressure gauge Check Monitoring System Battery On all i C screens the Battery icon will appear in the header bar when the system is running on battery power and the screen brightness will automatically be reduced The monitoring system will automatically disable some features to extend battery life 27 Helmer i Series amp Models Check the battery 1 Switch AC ON OFF switch OFF a Screen should continue to display information with reduced brightness b Battery icon will appear on the screen c lfthe display is blank replace battery 2 Switch AC ON OFF switch ON NOTE Use a battery which meets manufacturer s specifications 8 3 Check
50. ce last reset press and hold the SET button for 2 seconds CLr will be displayed followed by a series of 3 beeps to indicate exit back to the temperature display NOTE The minimum and maximum temperature and timer will reset when 360144 D E the unit is powered off and battery backup is not engaged or after 99 hours and 59 minutes have elapsed 58 Helmer Horizon Series Models 13 3 13 4 13 4 1 13 4 2 360144 D E Freezer Temperature Setpoint NOTE Default setpoint is 30 0 C Change the setpoint if Your organization requires a chamber temperature other than 30 0 C Change setpoint 1 Onthe monitoring system press and release SEL to change to Control mode The CONTROL lamp will illuminate 2 Press and hold SET to display the reference temperature NOTE Reference temperature is typically higher than the chamber temperature 3 Hold SET and press Up Arrow and Down Arrow as necessary to set the adjustment value determined in step 2 4 Release all buttons the setpoint is changed 5 Press and release SEL to return to Monitor mode The MONITOR lamp will illuminate Table of Parameters Parameter Visual Indicator Range Default Celsius or Fahrenheit C HIGH Lamp 40 to 104 F LOW Lamp 40 to 104 F 18 to 18 18 to 18 Hysteresis CONTROL Lamp 0 5 to 2 5 1to5 View Alarm Setpoints and Offset Values Press and hold the Up and Down Arrows simultaneously for 3 seconds
51. ch raise or lower leveling feet 2 When freezer is properly leveled bottom of the unit cooler will be horizontal parallel to the floor Optional Adapter Kits for Medication Dispensing Locks Contact Helmer Technical Service or your distributor for service documentation pertaining to medication dispensing locks 56 P Helmer Horizon Series Models 13 Settings Through the Horizon Series monitoring and control system current settings may be viewed and changed NOTE Control Sensor Offset and Hysteresis settings are factory preset and should not be changed unless directed by Helmer Technical Service gt Changing temperature settings affects operation of the freezer Do not change settings unless instructed in product documentation or by Helmer Technical Service 13 1 Monitor and Controller Interface A D mii uo TT E LOW TEMP ALAAN F J A iN 4 G TT CONT v Ca L Label Description Function A COOL lamp Indicates the compressor is running B Display Displays real time temperature information setpoints and alarms C HIGH TEMP lamp Indicates when the freezer is in a high temperature alarm condition Also indicates the high alarm temperature setpoint is being changed D LOW TEMP lamp Indicates when the freezer is in a low temperature alarm condition Also indicates the low alarm temperature setpoint is being changed E DOOR ALARM lamp Indicates when the door is open UP AR
52. ckwise until the current time indicators show the current time 4 Replace the electrical box cover 5 Switch the AC ON OFF switch ON Turn the Alarm Disable key switch ON 6 Press the Mute button to disable the high temperature alarm while freezer reaches operating temperature 360144 D E 52 Helmer Set Defrost Time 12 2 2 12 2 3 360144 D E Horizon Series Models Default setting of three defrost events per day Default times are 12 00 AM 8 00 AM 4 00 PM Defrost events can be added or removed Defrost events can be scheduled for any time of day in 15 minute intervals Defrost cycle lasts 15 to 30 minutes Defrost events must be at least one hour apart NOTE Three defrost cycles are recommended for consistent freezer operation Schedule a Defrost Event gt gt j E spur E E 2 ui lt Switch defrost event switch es to the ON position outside to initiate a defrost event at that time Switch defrost event switch es to the OFF position inside to cancel a defrost event at that time Switch the AC ON OFF switch OFF Turn the Alarm Disable key switch OFF Remove the electrical box cover on the back of the freezer Add a defrost event Atthe appropriate time mark position the switch ON toward the outer ring Remove a defrost event Atthe appropriate time mark position the switch OFF toward the inside ring
53. ctions for the condenser temperature probe are loose Condenser temperature probe is faulty Condenser fins are dirty Compressor is overheating due to a lack of air flow Condenser probe is gt not calibrated Condenser alarm gt setpoint is too low Condenser fan motor is faulty A component is faulty or internal connections are loose Monitor settings are not calibrated Temperature changed slightly around the time of activation Battery voltage level on the backup battery for the monitoring system is low Upper monitor probe is not immersed in the product simulation solution A component is faulty or internal connections are loose Upper monitor probe is not calibrated i Series Models Action gt gt Refrigerant level is too Check refrigeration lines for leaks and repair if necessary Check refrigerant level Recharge if low Test the probe connections Secure the connections if necessary Test the probe Replace the probe if necessary Clean as necessary or order new ones from Helmer or your distributor Check the condenser grill and clean if necessary Confirm the freezer is correctly located Refer to the operation manual Confirm the condenser probe is reading correctly Calibrate the probe if necessary Confirm the alarm setpoint is at the appropriate value Replace the condenser fan motor Contact Helmer Technical Service Confirm
54. d audible alarm will cease 4 Change Power Failure time delay to the original setting Door Open Alarm Test 1 Change Door Open Time delay setting to O minutes a Touch Home Settings Alarm Settings b Touch or on the Door Open Time spin box to change the value to 2 Open door Alarm will activate immediately Close door Alarm will clear and audible alarm will cease 4 Change the Door Open Time setting to the original setting 25 Helmer i Series Models 7 5 7 6 7 7 360144 D E Upgrade System Firmware Helmer may occasionally issue updates for the i C firmware Follow upgrade instructions included with the firmware update Calibrate the Touchscreen The i C touchscreen has been calibrated at the factory to ensure that when the screen is touched the desired key touch is selected If the i C touchscreen or display circuit board is replaced after the freezer 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 Calibrate the screen 1 Insert the flash memory device with the calibration program into the USB port on the i C bezel The flash memory device be inserted while any screen displayed on the i C 2 Wait 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 scree
55. d monitors and displays operational information Temperature Probes Number and location of probes varies by model External probes may be introduced through existing top ports and immersed in existing probe bottles For each probe bottle use 402 120 mL of product simulation solution 1 1 ratio of water to propylene glycol or equivalent low temperature fluid zi Ke 4 1 bottle with temperature and chart recorder probes Right access port Fill Temperature Probe Bottle NOTE Temperature probes are fragile handle with care 1 Remove all probes from bottle and remove bottle from bracket 2 Remove cap and fill with 4 oz 120 mL of product simulation solution 3 Install cap and place bottle in bracket 4 Replace probes immersing at least 2 50 mm in solution Install Additional Probe Through Top Port 1 Peel back putty to expose port 2 Insert probe through port into chamber 3 Insert probe into bottle 4 Replace putty ensuring a tight seal Helmer General Information 3 4 3 4 1 3 4 2 360144 D E Chart Recorder If installed refer to the Temperature Chart Recorder Operation and Service Manual on CD The chart recorder has a battery system enabling a period of continuous operation if power is lost Battery life varies by manufacturer as well as voltage level remaining Providing full power is available backup power for the temperature chart recorder is a
56. d the freezer setpoint by activating the compressor when the control probe registers above the setpoint Determine control sensor offset NOTICE Control Sensor Offset is factory preset and should not be changed Contact Helmer Technical Service for instructions regarding changing the Control Sensor Offset Upper monitor temperature must be verified and accurate prior to adjusting the Control Sensor Offset 1 View and record the Freezer Setpoint Reference Section Il Item 7 2 1 2 Allow the unit to run with calibrated monitor temperature for several compressor cycles and record the average monitor temperature 3 View and record the current Control Offset value Subtract the Freezer Setpoint from the average monitor temperature and record the difference 5 Add the current Control Offset value to the recorded difference determined in the previous step to establish the new Control Offset value 1 Freezer Setpoint is 4 0 2 Average monitor temperature is 5 2 3 Current Control Offset is 0 3 4 Subtract 5 2 4 0 1 2 difference between average temperature and setpoint 5 Add 0 3 1 2 2 1 5 new Control Offset value Enter the new offset value 1 Touch Home i C APPS Settings 2 Enter the Settings password 3 Touch Temperature Calibration 21 Helmer 5 Touch or on the Control Sensor Offset spin box Raise the offset value to lower chamber temperature lower the offset value to raise chamber
57. d to engage brackets 3 Pulling shelf forward gently shelf should not disengage from rear brackets 16 Helmer i Series Models 6 5 6 6 6 7 360144 D E Move Slides and Brackets Remove drawer slides 1 Using a screwdriver remove front bracket retainers 2 front brackets upward to disengage standards 3 Remove slides from standards Install drawer slides 1 Insert slides into standard at appropriate height 2 front brackets downward to engage standards 3 Using a screwdriver install front bracket retainers Remove shelf brackets 1 Using a screwdriver remove front bracket retainers 2 front brackets upward to disengage standards 3 Remove front brackets from standards Install shelf brackets 1 Insert front brackets into standard at appropriate height 2 front brackets downward to engage standards 3 Using a screwdriver install front bracket retainers Level the Freezer NOTE Leveling feet are optional Helmer recommends the use of leveling feet Abubble level may be used to ensure the freezer is level Leveling feet must be adjusted to provide unit cooler drainage Front to back 1 Using wrench raise or lower leveling feet 2 When freezer is properly leveled bottom of the unit cooler will slope downward from front to back toward the condensate drain line Side to side 1 Using a wrench raise or lower leveling feet 2 When freezer is properly leveled bot
58. er 360144 D E 78 Helmer Horizon Series Models 16 4 1 Unit Cooler A B Left Unit cooler Center and right Unit cooler parts Schematic Label Description Part Number Label T HB 5 R TXV expansion valve 220495 Qimimioci o u 360144 D E 79 Helmer 16 4 2 Storage Storage parts left HLF125 model right HPF125 model Horizon Series Models Label Description Part Number A Full shelf includes hardware 120 model 400414 1 125 model 400414 2 B Drawer assembly includes drawer 2 slides hardware 120 model 400584 2 125 model 400584 1 Not Drawer slide assembly right side 120 model 400541 3 shown 125 model 400541 1 Drawer slide assembly left side 120 model 400541 4 125 model 400541 2 Roll out basket assembly optional includes basket 2 slides 120 model 400890 1 hardware 125 model 400890 2 Roll out basket slide assembly right side 120 model 400541 3 125 model 400541 1 Roll out basket slide assembly left side 120 model 400541 4 125 model 400541 2 320815 1 400413 1 Drawer slide wheel Half shelf includes hardware 360144 D E Helmer Horizon Series Models 16 4 3 Door and Hinge Helmer T Qon Door and hinge features HPF120 model shown Label Description Part Number A Door lock functions as Access Control manual override lock on 220540 models equipped with Access Control option Right hinge 400376 1 2204
59. ervice faulty or internal connections are loose 360144 D E 67 Helmer 360144 D E Problem Prob appears on the display but the chamber temperature is set correctly An error code displays on the monitor The chamber temperature meets an alarm condition but the appropriate temperature alarm is not active The compressor runs continuously Horizon Series Models Possible Cause Action Connections for the gt monitor probe are loose Monitor probe wiring is an open circuit A component is faulty gt A component is faulty or internal connections are loose Temperature alarm setpoint was changed Freezer setpoint is set gt too low Control probe in the unit cooler is faulty Temperature monitor control board is faulty Compressor starting relay is faulty Test the probe connections Secure the connections if necessary Check the continuity of the probe wiring and connections Secure the connections or replace the probe if necessary Contact Helmer Technical Service Contact Helmer Technical Service Check the current setpoints for the temperature alarms Change the setpoints if necessary Confirm the setpoint is set within the operating range and change it if necessary Confirm the control probe is providing resistance in the range of 98 O to 110 O Replace the probe if necessary Confirm the temperature controller or monitor contro
60. ew Min Max temperature recording feature Added Document Updates to Document History page Added Confidential Proprietary Notice Section I Item 1 4 and Disclaimer Section I Item 1 5 Y YV E 23 MAR 2015 10320 E supersedes D Date submitted for Change Order review Actual release date may vary Document Updates The document is furnished for information use only is subject to change without notice and should not be construed as a commitment by Helmer Scientific Helmer Scientific assumes no responsibility or liability for any errors or inaccuracies that may appear in the informational content contained in this material For the purpose of clarity Helmer Scientific considers only the most recent revision of this document to be valid 360144 D E i gt Helmer Contents Section General 6 1 About this 44252459122 eee w awqa g a Dc 6 1 1 a 6 1 2 Model 4 2 4 6 to Copyngit and eee 20209 deed bebo dad suk S ae 6 14 Confidential Proprietary 6 6 1 5 Disclalmer
61. for a single beep b The display will alternate between LO and a valid temperature value five 5 times followed by a single beep to indicate exit back to the temperature display 2 View maximum temperature recording a Press and hold the Up Arrow button for 1 second and listen for a single beep b The display will alternate between HI and a valid temperature value five 5 times followed by a single beep to indicate exit back to the temperature display 3 View recorded temperature timer NOTE The timer denotes the period of time that has elapsed It does not display the time at which a minimum or maximum temperature occurred The maximum period of time the timer can record is 99 59 99 hours and 59 minutes a Press and hold either the Up or Down Arrow button for 1 second While the display is flashing the HI or LO value press and hold the SET button for 1 second c The display will alternate five 5 times between CLr and a value representing the number of hours and minutes that have elapsed since the last recording example 12 47 would represent 12 hours and 47 minutes A single beep will follow to indicate exit back to temperature display 4 Clear minimum and maximum temperature recordings a Press and hold either the Up or Down Arrow button for 1 second b While the display is flashing the HI or LO value press and hold the SET button for 1 second and listen for a single beep c While the display is flashing the elapsed time sin
62. ger repeated high temperature alarms The i C monitoring and control system can perform a maximum of four defrost cycles per day For information in setting the system time and the time at which each defrost cycle occurs refer to the i C User Guide Defrost Event On Off Default Time 12 00 AM 8 00 AM 4 00 PM 6 00 PM NOTE There must be a minimum of four hours between defrost cycles External Monitoring Devices The remote alarm interface is a relay switch with three terminals gt Common Normally Open NO Normally Closed NC Terminals are dry contacts and do not supply voltage Interface circuit is either normally open or normally closed depending on terminals used Requirements for your alarm system determine which alarm wires must connect to terminals CAUTION The interface on the remote alarm monitoring system is intended for connection to the end user s central alarm system s that uses normally open or normally closed dry contacts Ifan external power supply exceeding 30 V RMS or 60 V 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 terminals on the remote alarm interface have the following maximum load capacity 0 5Aat 30 V RMS 1 0 A at 24 V DC Connect to Remote Alarm Interface 1 Switch AC ON OFF switch OFF Switch battery switch OFF 2 On electrical box
63. gt The freezer is connected to power but the AC Power Failure alarm is active ON OFF AC power switch located inside the front lower panel is faulty ON OFF AC power switch is OFF A component is faulty or internal connections are loose Circuit breaker was gt tripped Horizon Series Models Action Confirm the circuit board and line connections are functioning correctly Replace parts with those included in the control board kit or replace the monitor control board Replace the alarm buzzer or speaker Contact Helmer Technical Service Turn the Alarm Disable key to the ON position Check the current setpoints for the alarms Test the monitor probe connections Secure the connections if necessary Test the probe Replace the probe if necessary Test the door switch and unit cooler fan connections Secure the connections if necessary Replace the door switch or fan motor if necessary Check the level of product simulation solution in the bottle Clean and refill bottle if necessary Check the setpoint Change the setpoint if necessary Contact Helmer Technical Service Verify power at the outlet Repair the original outlet or connect to a different outlet if necessary Confirm the power cord is connected securely Secure the power cord if necessary Replace the ON OFF AC power switch Turn the ON OFF AC power switch to the ON position Contact Helmer Technical Serv
64. ice Confirm the circuit breaker switch is seated Push the circuit breaker switch to reset the circuit breaker 70 Helmer Problem The Door Open alarm is activating sporadically All alarms are activating sporadically An alarm activated but the temperature recorded at activation does not match the alarm setpoint The High Temperature alarm is activating sporadically 360144 D E Horizon Series Models Possible Cause Action Door is not closing gt completely Door is closing but not gt sealing completely Connections for the gt door switch are faulty Door switch is faulty gt Monitor control board gt is faulty A component is faulty or internal connections are loose Alarm system is faulty gt Monitor control board gt is faulty A component is faulty or internal connections are loose Compressor is overheating due to lack of airflow Refrigerant level is too low Temperature changed slightly around the time of activation Monitor probe is not immersed in the product simulation solution A component is faulty or internal connections are loose Monitor probe is not calibrated Confirm the hinge cams are not damaged Replace the cams if necessary Confirm the door gasket seals completely Replace the door gasket if necessary Test the switch connections Secure the connections if necessary Replace the door switch Replace
65. in tube E Drain tube fan and heater components Label Description A Unit cooler cover Drain port Drain fan Fan tube Heater wires Heating element T m O O Drain tube Remove the Unit Cooler Cover 1 Switch AC ON OFF switch OFF Switch battery switch OFF 2 On back of the cabinet peel the putty back to expose the drain tube G and drain heater F N CAUTION The condensate evaporator and water evaporation tray are hot 360144 D E 3 Verify the heating element is cool Remove the screws and loosen the pipe straps securing the drain tube to the cabinet 4 Remove the drain heater from the drain tube 5 Remove the drain tube G by pulling it downward The drain tube should separate from the fan tube D at the 90 elbow leaving the fan tube D attached to the fan C a Separate the drain hose inside the cabinet from the unit cooler drain port B b Gently twist the drain hose from left to right to separate it from the unit cooler drain port c Pivotthe drain tube and drain hose upward then remove the assembly from the cabinet 30 Helmer i Series Models 8 6 2 360144 D E 6 Remove top drawer basket or shelf from the chamber NOTE For iPF models remove the Cold Shield panel Loosen three screws securing the panel to the cabinet then slide the panel to free it from the screws 7 Remove the unit cooler cover A a Hold unit cooler cover in place to prevent it from dropping b Use the
66. ing it on brackets 2 Gently bump rear edge of the shelf downward to engage brackets 3 Pulling shelf forward gently shelf should not disengage from rear brackets 55 Helmer Horizon Series Models 12 5 12 6 12 7 360144 D E Move Slides and Brackets Remove drawer slides 1 Using a screwdriver remove front bracket retainers 2 front brackets upward to disengage standards 3 Remove slides from standards Install drawer slides 1 Insert slides into standard at appropriate height 2 front brackets downward to engage standards 3 Using a screwdriver install front bracket retainers Remove shelf brackets 1 Using a screwdriver remove front bracket retainers 2 front brackets upward to disengage standards 3 Remove front brackets from standards Install shelf brackets 1 Insert front brackets into standard at appropriate height 2 front brackets downward to engage standards 3 Using a screwdriver install front bracket retainers Level the Freezer NOTE Leveling feet are optional Helmer recommends the use of leveling feet Abubble level may be used to ensure the freezer is level Leveling feet must be adjusted to provide unit cooler drainage Front to back 1 Using wrench raise or lower leveling feet 2 When freezer is properly leveled bottom of the unit cooler will slope downward from front to back toward the condensate drain line Side to side 1 Using a wren
67. ivalent oxidizing cleaner disinfectant approved by your organization may be substituted 402 120 mL of product simulation solution per bottle Solution is a 1 1 ratio of water to propylene glycol or equivalent low temperature fluid Clean and refill bottle Remove probe from bottle Remove bottle from bracket Clean bottle with water bleach solution Fill bottle with 4 oz 120 mL of product simulation solution Cap bottle tightly to minimize evaporation Place bottle in bracket Replace probe immersing at least 2 50 mm NO oa T WD Unit Cooler Removal and Installation If unit cooler cover is not removed as detailed in this procedure the drain port may be damaged Improper drainage may result in excessive icing and freezer s inability to maintain temperature Required tools 5 16 socket wrench gt Tool to push putty away from the drain tube Drain tube fan and heater components Label Description A Unit cooler cover Drain port Drain fan Fan tube Heater wires Heating element oO m Drain tube 65 Helmer Horizon Series Models 14 5 1 14 5 2 360144 D E Remove the Unit Cooler Cover 1 Switch AC ON OFF switch OFF Disconnect the battery 2 Onthe back of the cabinet peel the putty back to expose the drain tube G and drain heater F CAUTION The condensate evaporator and water evaporation trays are hot 3 Verify the heating element is cool Remove the sc
68. l board is operating correctly Replace it if necessary Confirm the relay is operating correctly Replace the relay if necessary 68 Helmer 360144 D E Possible Cause Problem Monitor control board is faulty Compressor starting relay is faulty Temperature monitor controller board is faulty Condensing unit fan is gt not running Unit cooler fan is not The chamber temperature does not stabilize at the freezer setpoint running Compressor motor gt has seized Control probe is out of calibration Control probe is faulty gt Refrigerant level is too gt Probe bottle is empty gt The condenser grill is dirty Air circulation at the top of the chamber is not adequate Ambient air temperature around the freezer is too high A component is faulty or internal connections are loose Horizon Series Models Action Confirm the temperature controller or monitor control board is operating correctly Replace it if necessary Confirm the relay is operating correctly Replace the relay if necessary Confirm the temperature monitor controller board is operating correctly Replace the board if necessary Check the condensing unit fan connections Replace the fan motor if necessary Check the voltage to the fan when door switch is activated Replace the fan motor or door switch if necessary Replace the compressor Confirm the
69. librated monitor temperature for several compressor cycles and record the average monitor temperature 3 View and record the current Control Offset value Subtract the Freezer Setpoint from the average monitor temperature and record the difference 5 Add the current Control Offset value to the recorded difference determined in the previous step to establish the new Control Offset value 1 Freezer Setpoint is 30 0 2 Average monitor temperature is 31 2 3 Current Control Offset is 0 3 4 Subtract 31 2 30 0 7 1 2 difference between average temperature and setpoint 5 Add 0 3 1 2 0 9 new Control Offset value Enter the new offset value 1 Press and hold the Up and Down Arrows simultaneously for 3 seconds to enter program mode 2 The Display will show C or F to indicate Celsius or Fahrenheit 3 Press SEL until only the CONTROL lamp flashes NOTE Ensure Control Sensor Offset is being changed and not Hysteresis gt Control Sensor Offset and Hysteresis have the same visual indicator 4 Hold SET then press Up or Down Arrow to change the setpoint 5 Release SET button The new setting is saved 6 Press and hold Up and Down Arrows simultaneously for 3 seconds to exit program mode Hysteresis Allowable temperature variance on each side of the freezer setpoint NOTE Hysteresis is factory preset and should not be changed Contact Helmer Technical Service for instructions regarding changing the Hystere
70. n 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 crosshairs with the eraser end of a pencil 5 After all crosshairs have been touched the i C will reboot and display the language screen NOTE For accurate calibration results and to avoid damage to the touchscreen touch the crosshairs with the eraser end of a pencil If screen was unintentionally touched outside of any of the crosshair icons the screen may be recalibrated using the process outlined above View Manufacturer and Product Information View version information for contacting Helmer 1 Touch i C APPS Contact Helmer 2 Manufacturer contact information appears 3 Software version appears 26 Helmer i Series Models 8 8 1 8 2 360144 D E Maintenance NOTE Refer to the operation manual for the preventive maintenance schedule Before performing maintenance protect items in freezer from extended exposure to adverse temperature Allow freezer temperature to stabilize at setpoint after performing service or after extended door opening gt Recharge Refrigerant CAUTION Review all safety instructions prior to recharging refrigerant Refer to Section I Item 2 Safety gt Maintenance should only be performed by trained refrigeration technicians NOTE Use only non CFC R 404A refrigerant Full initial refriger
71. neously for 3 seconds to exit program mode ona fh WN Low Temperature Alarm Setpoint Press and hold the Up and Down Arrows simultaneously for 3 seconds to enter program mode The LED Display will show C or F to indicate Celsius or Fahrenheit Press SEL until LOW TEMP and MONITOR lamps flash Hold SET then press Up or Down Arrow to change the setpoint Release SET button The new setting is saved Press and hold Up and Down Arrows simultaneously for 3 seconds to exit program mode WN Temperature Calibration Setpoints Temperature calibration setpoints indicate an acceptable margin of error between the actual temperature value and the desired temperature value Monitor Offset p Value is factory set to match a calibrated reference thermometer NOTE Ensure the product simulation bottle is full of solution Probesin the bottle are connected to the monitoring system and sense chamber temperature These probes do not affect freezer setpoint Obtain Calibrated reference thermometer independent and traceable per national standards Tape or wire ties to attach thermometer to monitor probe Measure the chamber temperature 1 Remove the monitor probe from the probe bottle and unscrew the cap 2 Attach the thermometer to the probe and immerse at least 2 50 mm in bottle 3 Close the door and allow the chamber temperature to stabilize for 10 minutes 4 Note the temperature on the calibrated reference thermome
72. nnections are loose Evaporator is covered gt with ice and is not exchanging heat Alarm Activation Problems Possible Cause Alarm system is faulty gt Monitor control board is faulty Speaker is faulty gt A component is Problem The freezer is in an alarm condition but alarms are not audible faulty or internal connections are loose Audible alarms are gt muted i Series Models Action Confirm the temperature controller or monitor control board is operating correctly Replace it if necessary Check the condensing unit fan connections Replace the fan motor if necessary Check the voltage to the fan when door switch is activated Replace the fan motor or door switch if necessary Replace the compressor Replace the probe if necessary Check the refrigeration lines for leaks and repair them if necessary Check the refrigerant level Recharge the refrigerant if necessary Confirm the relay is operating correctly Replace the relay if necessary Check the condenser grill Clean it if necessary Check if there are any items that may obstruct air flow and remove them if necessary Confirm freezer location meets requirements Refer to the operation manual Contact Helmer Technical Service Initiate a freezer defrost cycle Action Confirm the circuit board and line connections are functioning correctly Replace parts with those included in the control board kit
73. o Battery A V R i Series Probe Failure A V R Communication Failure A V R i Series 4 2 Regulatory Compliance C This device complies with the requirements of directive 93 42 EEC concerning Medical Devices as amended by 2007 47 EC 0086 Sound level is less than 70 dB A Emergo Europe Molenstraat 15 2513 The Hague Netherlands i COMPLIANT 4 3 WEEE Compliance The WEEE waste electrical and electronic equipment symbol right indicates compliance with European Union Directive WEEE 2002 96 EC and applicable provisions The directive sets requirements for labeling and disposal of certain products in affected countries When disposing of this product in countries affected by this directive gt Do not dispose of this product as unsorted municipal waste Collect this product separately Use collection and return systems available locally For more information on the return recovery or recycling of this product contact your local distributor 360144 D E 11 Helmer General Information 5 5 1 360144 D E Warranty Rel i Product Warranty USA and Canada For technical service needs please contact Helmer at 800 743 5637 or www helmerinc com Have the model and serial number available when calling 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
74. ontrol lock Test the Access Control backup battery to ensure it is working properly Check the battery 1 Ensure Access Control battery key switch is switched ON 2 Switch AC ON OFF switch OFF 3 Verify PoFF power failure message is displayed 4 Attempt to open the cabinet door Ifthe door remains locked the battery is functional door does not remain locked replace the battery 4 Switch AC ON OFF switch ON Clean the Freezer Condenser Grill CAUTION Disconnect freezer from AC power when cleaning the condenser grill In environments where freezer is exposed to excessive lint or dust condenser grill may require cleaning more frequently than stated in preventive maintenance schedule Clean the condenser grill using a soft brush and a vacuum cleaner Exterior Clean exterior surfaces with soft cotton cloth and non abrasive liquid cleaner CAUTION The condensate evaporator and water evaporation trays 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 with soft cloth and mild soap and water solution 64 Helmer Horizon Series Models 14 4 5 14 5 360144 D E Clean and Refill Probe Bottle Obtain Fresh water bleach solution not provided 1 9 ratio of bleach to water gt Bleach is 5 solution of commercial sodium hypochlorite NaOCl Equ
75. order and door Schematic Label Description Part Number Label A Temperature chart recorder standard on plasma 800084 1 CA freezer model optional on laboratory model B i C monitoring and control system Refer to subsequent IQ section s for part numbers 120218 cc Caster swivel with brake 220467 360144 D E 40 Helmer I Series amp Models 10 1 1 Access Control Option Schematic Part Number Label 10 1 2 zi Do C 30 1 C Lower Temp a Schematic Label Description Part Number Label A Interface cable 800010 1 IG B 800010 1 IH C Display assembly includes touchscreen display 800042 1 IQ board interface cable speaker NOTE gt The i C display assembly is sensitive to static electricity can be damaged by electrostatic discharge Use proper ESD precautions when handling the display assembly Although the touchscreen and display board may be replaced independently of the i C display assembly Helmer recommends replacing the complete assembly 360144 D E 41 Helmer i Series Models 10 2 Top Top features Schematic Label Description Part Number Label A Condenser fan motor 230 V 50 Hz 120515 K 230 V 60 Hz 120493 B Compressor 230 V 50 Hz 400672 3 J 230 V 60 Hz 400672 4 C Monitoring system battery supplies backup power to 120628 IB optional Access Control system Not Condenser probe 800039 1 IL shown Solenoid valve 220547
76. orrectly Confirm freezer location meets requirements 38 Helmer i Series Models Problem Possible Cause Action After a defrost cycle Not enough time has Allow approximately 20 minutes after the end no water flows into elapsed since the end of the defrost cycle to check for water in the the water evaporation of the defrost cycle evaporation tray tray Drain line is plugged Confirm the drain tube is free of debris Remove debris if necessary Drain line heater is Confirm the drain line heater is warm to the touch faulty Contact Helmer Technical Service to resolve issues as necessary Defrost heater on the Check for ice buildup on the evaporator by looking evaporator in the unit through the fan grill with a flashlight If there is cooler is not working significant ice buildup inside or behind the unit cooler initiate a defrost cycle of the freezer Defrost heater on the Confirm the drain line heater is hot and is drawing evaporator in the unit the appropriate current during a defrost event cooler is faulty approximately 3 3 A to 5 5 A Replace the defrost heater if necessary 360144 D E 39 P Helmer i Series Models 10 Parts NOTE Before replacing parts protect items in freezer from extended exposure to adverse temperature Allow freezer temperature to stabilize at setpoint after replacing parts or after extended door opening 10 1 Front Left iPF120 freezer Right Chart rec
77. paired product function injury to the operator or others or void applicable product warranties Helmer Scientific accepts no responsibility for liability resulting from improper use or maintenance of its products The screenshots and component images appearing in this guide are provided for illustrative purposes only and may vary slightly from the actual software screens and or product components Helmer General Information 2 Safety Includes general safety information for freezer operation 2 1 Labels uL du estu EET Caution Unlock all casters to equipment or danger to operator Caution Hot surface Earth ground terminal Caution Shock electrical Protective earth ground hazard terminal 2 2 Avoiding Injury Review safety instructions before installing using or maintaining the equipment Do not open multiple loaded drawers at the same time Do not move a unit whose load exceeds 900 Ibs 408 kg Before moving unit ensure casters are unlocked and free of debris Never physically restrict any moving component Avoid removing electrical service panels and access panels unless so instructed Use manufacturer supplied power cords only A CAUTION Decontaminate parts prior to sending for service or repair Contact Helmer or your distributor for decontamination instructions and a Return Authorization Number 360144 D E 7 P Helmer General Information 3 Configuration 3 1 Model and In
78. power in the event of AC power failure Switch the Access Control backup battery ON to provide the optional Access Control system with backup power in the event of an AC power failure 51 gt Helmer Horizon Series Models 12 2 Schedule Defrost Events Defrost events may be scheduled to occur at specific times Access to the defrost controller is available from the back of the freezer in the electrical box Specify the number of defrost events to execute per day as well as the time at which to initiate each defrost cycle The cycles are based on the current time settings on the defrost controller The defrost controller features two time indicators and a time adjustment ring The hour and minute hands show the current time in hours and minutes The outer ring shows the current time including AM or PM to the nearest 15 minute interval 1 ui E uj E at lt X k A 5 AME EEG agn An A 2 Defrost controller with current time set to approximately 9 30 PM Label Description A PM indicator B Current time indicator includes AM PM to the nearest 15 minute interval C Current time indicator hour and minutes only D AM indicator E Time adjustment ring 12 2 1 Set Current Time 1 Switch the AC ON OFF switch OFF Turn the Alarm Disable key switch OFF 2 Remove the electrical box cover on the back of the freezer 3 Rotate the time adjustment ring clo
79. put Power NOTE Service information varies depending on the model and power requirements This information appears on the product specification label located on the rear of the freezer below the electrical box The model also appears on a label located in the chamber on the upper side of the right wall REF IPF125 IPF125 n i Series Helmer 200099 000000 2 Version D www helmerinc com Version D Pharmacy Freezer Voltage 230 V D Weight 551 Ib 250 kg 60 www helmerinc com 4 3A 0 99 kW C C Certified Refrigerant Type 404A UL 61010 1 CSA 61010 1 Made in USA Left Chamber label Right Product Specification label Label Description A Model REF B Serial number C Version D Power requirements 3 2 Control System NOTE Service information varies depending on the control system Helmer freezers have one of two control systems installed The type of control system varies by model 3 2 1 i C e Control System i Series freezers are equipped with the i C monitoring and control system The i C system combines temperature control and monitoring into a single interface 2 00 pm 01 01 2010 30 0 C 30 1 Lower Temp T ms 360144 D E 8 Helmer General Information 3 2 2 3 3 3 3 1 3 3 2 360144 D E Horizon Series Control System Horizon Series freezers feature the Horizon combined monitor and temperature controller The Horizon Series system controls chamber temperature an
80. r F Interior features IPF125 model shown n Schematic Label Description Part Number Label Door Refer to subsequent section s for part numbers Storage parts Refer to subsequent section s for part numbers Not Strike plate replacement kit includes strike 400687 1 shown plates 2 vertical 2 horizontal with pre applied foam tape foil tape and instructions Unit cooler Refer to subsequent section s F for part numbers T O O E 360144 D E 45 Helmer i Series Models 10 4 1 Unit Cooler A B Left Unit cooler Center and right Unit cooler parts Schematic Label T D s Label Description Part Number Defrost heater 120567 R F TXV expansion valve 220495 Not Defrost temperature probe IL 360144 D E 46 gt Helmer 10 4 2 Storage Helmer Helmer Storage features iLF125 model shown right 125 model shown Label Description A Full shelf includes hardware B Drawer assembly includes drawer 2 slides hardware Not Drawer slide assembly right side shown Drawer slide assembly left side Roll out basket assembly optional includes basket 2 slides hardware Roll out basket slide assembly right side Roll out basket slide assembly left side Drawer slide wheel 320815 1 Half shelf includes hardware 400413 1 360144 D E Part Number 120 model 125 model 120 model 125 model 1
81. r Not affected maintained in real time clock Language previously selected during setup C On On On 20 0 C 0 minutes 35 0 C 0 minutes 1 minute 0 minutes 22 Helmer 7 3 5 7 3 6 360144 D E Setting Door Open Time Alarm Time Delay Compressor Temperature Alarm Setpoint Compressor Temperature Alarm Time Delay Chamber Setpoint Chamber Hysteresis Delay on Start Up Control Relay Probe Failure Duty Cycle Defrost Event 1 On Off Defrost Event 1 Start Time Defrost Event 2 On Off Defrost Event 2 Start Time Defrost Event 3 On Off Defrost Event 3 Start Time Defrost Event 4 On Off Defrost Event 4 Start Time Defrost Time Defrost Safety Operation Time Restore Factory Default Settings i Series Models Restored Value 3 minutes 50 0 C O minutes 30 0 C 2 0 C 2 minutes 100 On 12 00 AM On 8 00 AM On 4 00 PM Off 6 00 PM 15 minutes 1 Touch Home i C APPS Settings Restore Factory Settings 2 Are you sure you want to restore factory settings message appears Do one of the following Touch Yes The message screen closes and factory settings are restored Touch No The message screen closes and factory settings not restored Change Factory Settings Several of the freezer operating parameters are configured at the factory The settings listed below are set at the factory and may be changed at the direction of Helmer Technical Service Setting Temperature
82. r M Model Requirements Initial Charge 120 and 125 models 230 V 60 Hz 29 0 oz 822 g Obtain gt Refrigerant Calibrated pressure gauge 0 psi to 220 psi 0 kPa to 1520 Add refrigerant 1 Attach pressure gauge to the fittings on the refrigeration lines 2 Monitor the low side suction pressure through a full compressor cycle 3 Measure the pressure at the end of the next cycle immediately before the compressor stops NOTE Pressure varies depending on ambient air temperature 4 Addrefrigerant Check the pressure on the high side and the low side gt Low side 2 psi to 4 psi 14 kPa to 28 kPa High side 180 psi to 220 psi 1241 kPa to 1520 kPa 5 Remove pressure gauge 360144 D E 63 Helmer Horizon Series Models 14 2 14 3 14 4 14 4 1 14 4 2 14 4 3 14 4 4 360144 D E Check Monitoring System Battery The monitoring system does not indicate the charge level of the battery Regularly test the battery Replace battery if the test fails or if the battery has been in use for one year Test the battery 1 Switch the AC ON OFF switch OFF a Display should continue to display information b Ifthe display is blank replace battery 2 Switch AC ON OFF switch ON NOTE Use a battery which meets manufacturer s specifications Check Optional Access Control System Battery During an AC power failure the Access Control backup battery provides backup power to power the magnetic Access C
83. rd gt is faulty A component is faulty or internal connections are loose Compressor is overheating due to lack of airflow Condenser alarm gt setpoint is too low Refrigerant level is too gt low Confirm the hinge cams are not damaged Replace the cams if necessary Confirm the door gasket seals completely Replace the door gasket if necessary Test the switch connections Secure the connections if necessary Replace the door switch Replace parts with those included in the control board kit or replace the monitor control board Check the time delay for the Door Open alarm Change the time delay if necessary Confirm the circuit board and line connections are functioning correctly Replace parts with those included in the control board kit or replace the monitor control board Contact Helmer Technical Service Check the condenser grill Clean if necessary Confirm freezer location meets requirements Confirm the alarm setpoint is set at the expected or correct value Check refrigeration lines for leaks and repair if necessary Check the refrigerant level Recharge refrigerant if necessary 36 Helmer Problem The condenser alarm is active An alarm activated but the temperature recorded at activation does not match the alarm setpoint The No Battery alarm is activating sporadically The High Temperature alarm is activating sporadically Possible Cause Conne
84. requirements Allow approximately 20 minutes after the end of the defrost cycle to check for water in the evaporation tray Confirm the drain tube is free of debris Remove debris if necessary Confirm the drain line heater is warm to the touch Contact Helmer Technical Service to resolve issues as necessary Check for ice buildup on the evaporator by looking through the fan grill with a flashlight If there is significant ice buildup inside or behind the unit cooler initiate a defrost cycle of the freezer Confirm the drain line heater is hot and is drawing the appropriate current during a defrost event approximately 3 3 A to 5 5 A Replace the defrost heater if necessary 72 P Helmer Horizon Series Models 16 Parts NOTE Before replacing parts protect items in freezer from extended exposure to adverse temperature Allow freezer temperature to stabilize at setpoint after replacing parts or after extended door opening 16 1 Front A BC D Front features HLF125 model shown Schematic Label Description Part Number Label A Temperature chart recorder standard on plasma 800083 1 CA freezer models optional on laboratory models B Horizon Series monitoring and control system Refer to subsequent HA section s for part numbers shown 120216 Caster swivel with brake 220467 360144 D E 73 Helmer Horizon Series Models 16 1 1 16 1 2 360144 D E Access Control Option
85. rews and loosen the pipe straps securing the drain tube to the cabinet 4 Remove the drain heater from the drain tube 5 Remove the drain tube G by pulling it downward The drain tube should separate from the fan tube D at the 90 elbow leaving the fan tube D attached to the fan C a Separate the drain hose inside the cabinet from the unit cooler drain port B b Gently twist the drain hose from left to right to separate it from the unit cooler drain port c Pivot the drain tube and drain hose upward then remove the assembly from the cabinet 6 Remove top drawer basket or shelf from the chamber NOTE For HPF models remove the Cold Shield panel Loosen three screws securing the panel to the cabinet then slide the panel to free it from the screws 7 Remove the unit cooler cover A a Hold unit cooler cover in place to prevent it from dropping b Use the socket wrench to remove four screws securing the unit cooler cover c Carefully lower unit cooler cover to avoid damage to the fan wiring Install the Unit Cooler Cover 1 Verify unit cooler wiring is connected and routed correctly a Wiring should be routed above copper tube inside the unit cooler b Reconnect wires if they have separated 2 Attach unit cooler cover a Lift unit cooler cover into place b Front edge of the cover should be behind the unit cooler case c Use the socket wrench to install four screws to secure the unit cooler cover 3 Insert the drain tube and drain hose
86. ries Models Section Horizon Series V Models 12 12 1 360144 D E Product Configuration Install Battery for Backup Power The monitoring system has a battery system enabling a period of continuous operation if power is lost NOTE The optional Access Control system uses an independent battery for backup power in the event of a power failure The monitoring system will start on battery power alone If the freezer was previously not connected to AC power and the battery is connected the monitoring system will begin running on battery power Battery life varies by manufacturer as well as voltage level remaining Providing full power is available and no battery related alarms are active backup power for the monitoring system is available for up to two hours Providing full power is available backup power for the optional Access Control system is available for up to 2 5 hours CAUTION Before installing or replacing batteries switch the power OFF Disconnect the freezer from AC power When installing a replacement battery use only a battery which meets the manufactuerer s specifications The monitoring system and optional Access Control batteries are located on the top of the freezer Ed F aw N Monitoring system backup battery Optional Access Control backup battery Monitoring system battery is included in the literature box Install and connect the battery to provide monitoring system with backup
87. sis value 61 Helmer Horizon Series Models 13 7 13 7 1 13 7 2 13 7 3 360144 D E Test Alarms Test alarms to ensure they are working correctly The freezer has alarms for chamber temperature power failure and door open time NOTE Before testing alarms protect items in freezer from extended exposure to adverse temperature TheAlarm Disable key switch disables all audible alarms This switch does not affect alarm lamps or signals sent through the remote alarm interface Chamber Temperature Alarm Obtain glass with 4 oz 120 mL of product simulation solution 1 1 ratio of water to propylene glycol or equivalent low temperature fluid NOTE Temperature probes are fragile handle with care Test the high alarm 1 Identify setting for high alarm setpoint 2 Place the glass of product simulation solution in the freezer 3 When the product simulation solution has stabilized at the chamber temperature remove the solution from the freezer 4 Remove the monitor probe from the probe bottle 5 Place the probe in the product simulation solution observe the temperature on the monitoring system display at which the high temperature alarm sounds 6 Compare the temperature at which the alarm sounds to the high alarm setpoint If values do not match refer to Section lll Item 15 Troubleshooting 7 Remove probe from product simulation solution 8 Place monitor probe in probe bottle immersing it at least 2
88. stem is available for up to 20 hours the Low Battery alarm will activate after approximately 18 hours of battery use Providing full power is available backup power for the optional Access Control system is available for up to 2 5 hours N CAUTION Before installing or replacing batteries switch the power and battery OFF 360144 D E Disconnect the freezer from AC power gt When installing a replacement battery use only a battery which meets the manufacturer s specifications NOTE If AC power is lost the monitoring system will automatically disable some features to prolong battery power Data collection will continue until battery power is depleted The battery is located on the top of the freezer Monitoring system backup battery supplies power to optional Access Control system Battery is switched off for shipping Switch battery on to provide monitoring system with backup power in the event of AC power failure 14 Helmer i Series Models 6 2 6 3 6 3 1 360144 D E Automatic Defrost Cycle The number of programmed defrost events is dependent on environmental conditions and the frequency of usage The recommended number of daily defrost cycles is three to four at even intervals Defrost events should take place when the freezer door is opened infrequently NOTE Depending on the high temperature alarm setpoint and the actual temperature increase during the defrost cycle frequent door openings may trig
89. tacts Main power switch 120478 C Circuit breaker 12 120220 B A CAUTION Do not remove the cover from the condensate evaporator tray 360144 D E 76 Helmer Horizon Series Models 16 3 1 Electrical Box Electrical box features HPF120 model shown N CAUTION Disconnect the freezer from AC power before opening the electrical box Schematic Label Description Part Number Label C Compesorry fos J L D Temperature control transformer 800086 HO E Powriefler D Not Access Control power supply optional 800035 1 AXd shown NOTE The control board is sensitive to static electricity and can be damaged by electrostatic discharge Use proper ESD precautions when handling the board 360144 D E 77 Helmer Horizon Series Models 16 4 Interior Interior parts iLF125 model shown Schematic Label Description Part Number Label A Chart recorder probe 800024 1 CB Monitor probe 800029 1 HC Mullion heater behind strike plates 800082 1 U Unit cooler Refer to subsequent F section s for part numbers B C Probe bottle and propylene glycol kit 400922 1 D E G Door Refer to subsequent section s for part numbers H Storage parts Refer to subsequent section s for part numbers Not Strike plate replacement kit includes strike plates 2 400687 1 shown vertical 2 horizontal with pre applied foam tape foil tape and instructions Unit cool
90. ter and compare to the chamber temperature displayed on the monitor 5 Adjust the monitor offset value higher or lower to reflect the difference between the chamber temperature displayed on the monitor and the temperature reading from the calibrated reference thermometer 6 Remove thermometer from the probe Replace bottle cap ensuring a tight fit 8 Place probe in bottle immersing at least 2 50 mm 60 Helmer Horizon Series Models 13 6 2 13 6 3 360144 D E Enter the new offset value Press and hold the Up and Down Arrows simultaneously for 3 seconds to enter program mode The display will show C or F to indicate Celsius or Fahrenheit Press SEL until only the MONITOR lamp flashes Hold SET then press Up or Down Arrow to change the monitor offset Release SET button The new setting is saved Press and hold Up and Down Arrows simultaneously for 3 seconds to exit program mode ooh WN Control Sensor Offset Factory preset Varies for each freezer Determine control sensor offset NOTE gt Control Sensor Offset is factory preset and should not be changed Contact Helmer Technical Service for instructions regarding changing the Control Sensor Offset gt Steps in Item 13 6 1 must be performed to ensure the monitor display is calibrated and accurate prior to adjusting the Control Sensor Offset 1 View and record the Freezer Setpoint Reference Section Ill Item 13 3 2 Allow the unit to run with ca
91. the monitor probe is reading correctly Calibrate the probe if necessary No action necessary Replace the backup battery for the monitoring system Confirm the probe bottle is full of solution and the probe is placed in the bottle correctly Contact Helmer Technical Service Confirm the upper monitor probe is reading correctly Calibrate the probe if necessary 37 Helmer 9 4 9 5 360144 D E Testing Problems Problem The automatic temperature tests do not work i Series Models Possible Cause Action Connections for the gt monitor probe are loose Monitor probe is gt faulty Monitor control board gt is faulty High Alarm setpoint is set significantly higher than the default gt value or the Low Alarm setpoint is set significantly lower than the default value A component is faulty or internal connections are loose Condensation and Icing Problems Problem There is excessive water in the water evaporation tray inside the lower compartment in the back of the unit There is excessive ice in the chamber There is excessive moisture on the door Test the monitor probe connections Secure the connections if necessary Test the monitor probe Replace the probe if necessary Replace parts with those included in the control board kit or replace the monitor control board Confirm the alarm setpoints are set at the expected or correct values
92. to enter program mode The LED Display will show C or F to indicate Celsius or Fahrenheit Press and release SEL to scroll through the parameters and view settings Hold Up and Down Arrows simultaneously for 3 seconds to exit program mode The LED Display will show current monitor temperature ak ON Temperature Units NOTE If temperature units are changed the temperature setpoints offsets and alarm settings must be recalibrated 1 Press and hold the Up and Down Arrows simultaneously for 3 seconds to enter program mode 2 The LED Display will show C or F to indicate Celsius or Fahrenheit 3 Press and hold the SET button while pressing the Up or Down Arrow to select the desired temperature unit parameter 4 Release SET button The new setting is saved 5 Press and hold Up and Down Arrows simultaneously for 3 seconds to exit program mode 59 Helmer Horizon Series Models 13 5 13 5 1 13 5 2 13 6 13 6 1 360144 D E Temperature Alarm Setpoints Temperature alarm setpoints specify the temperature at which an alarm activates High Temperature Alarm Press and hold the Up and Down Arrows simultaneously for 3 seconds to enter program mode The LED Display will show C or F to indicate Celsius or Fahrenheit Press SEL until HIGH TEMP and MONITOR lamps flash Hold SET then press Up or Down Arrow to change the setpoint Release SET button The new setting is saved Press and hold Up and Down Arrows simulta
93. tom of the unit cooler will be horizontal parallel to the floor Optional Adapter Kits for Medication Dispensing Locks Contact Helmer Technical Service or your distributor for service documentation pertaining to medication dispensing locks 17 Helmer i Series Models 7 Settings Through the i C monitoring and control system current settings may be viewed and changed To view settings touch Home i C APPS Settings Use a touch drag motion to scroll up or down to display additional settings NOTE If the Settings screen is password protected or if viewing settings for the first time enter factory default password of 1234 When there is no interaction for two minutes the Temperature Setpoint screen closes and returns to the Home screen Default values for general settings alarm settings and display settings are available in the i C User Guide Changing temperature settings affects operation of the freezer Do not change settings unless instructed in product documentation or by Helmer Technical Service Y YV YV The i C temperature monitor and controller is programmed at the factory To change a setting first enter the Settings mode then the setting The method for accessing the Settings mode for each setting varies T 1 Home Screen 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
94. uring Probe Failure 10096 Defrost Time 15 minutes Temperature Calibration Temperature calibration values are programmed at the factory Calibration values can be viewed and changed through the i C monitoring and control system To view calibration settings touch Home i C APPS Settings Details for each setting are displayed Control Sensor Evaporator Defrost Upper Temperature BO C Lower Temgperatune 50 0 C Compressor Probe Cel Temperature Temperature Calibration screen NOTE Ifthe Settings screen is password protected or if viewing settings for the first time enter factory default password of 1234 When there is no interaction for two minutes the Temperature Setpoint screen closes and returns to the Home screen Control Sensor and Control Sensor Offset Evaporator Defrost and Evaporator Defrost Offset and Compressor Probe Temperature calibration settings are factory preset and should not be changed unless directed by Helmer Technical Service Calibrate Monitor Probes Verify monitor probes are reading chamber temperature correctly by comparing monitor probe readings to temperature read by an independent thermometer If monitor probes are not reading correctly change the value displayed on the monitor NOTE Ensure product simulation bottle is full of solution Probes in the bottles are connected to the monitoring system and sense chamber temperature These probes do not
95. vailable for up to 14 hours Prior to use Install battery Add paper Calibrate chart recorder to match upper chamber temperature Chart Recorder Access Open door by either pressing and releasing or by pulling door open Install Chart Paper 1 Press and hold C button When stylus begins to move left release button The LED flashes to indicate current temperature range 2 When stylus stops moving remove chart knob then move knob up and away 3 Place chart paper on chart recorder 4 Gently lift stylus and rotate paper so current time line corresponds to time line groove NOTE For accurate temperature reading ensure that current time is aligned with time line groove when chart knob is tightened 6 Confirm temperature range is set to the correct value 7 Press and hold C button When stylus begins to move right release button 8 Confirm stylus is marking temperature correctly 10 Helmer General Information 4 References and Compliance 4 1 Alarm Reference If an alarm condition is met an alarm activates Some alarms are visual only others are visual and audible Some alarms are sent through the remote alarm interface The table indicates if an alarm is audible A visual V or sent through the remote alarm interface R Alarm Alarm Type High Temperature A V R Low Temperature A V R Compressor Temperature V R i Series Door Open Time A V R Power Failure A V R Low Battery V i Series N
96. vel the same height Drawer slide is faulty Confirm the slide is operating correctly Replace if necessary gt gt gt bearings in the slides Pull the drawer out and confirm the slides are free of ice De ice if necessary The door does not Debris in the hinges Confirm the hinges are free of debris Clean the open easily hinges if necessary Door hinges are not Using a general purpose grease lubricate the lubricated pivots in the hinges Hinge cam is faulty Confirm the hinge cam is not damaged Replace the cam if necessary 15 2 Chamber Temperature Problems Problem Possible Cause Action The chamber Connections for the Test the monitor probe connections Secure the temperature displayed monitor probe are connections if necessary is higher or lower loose than the actual Monitor probe wiring Check the continuity of the probe wiring Replace temperature is an open circuit the probe if necessary Probe bottle is empty Check the level of product simulation solution in or the amount of the bottle Clean and refill the bottle if necessary solution is too low Solution in the probe Refill the bottle with new solution bottle is frozen Digital electronics are Reset the monitoring system locked because of an interruption in power Monitor is not gt Confirm the monitor probe is reading correctly calibrated Calibrate the monitor probe if necessary A component is Contact Helmer Technical S
97. 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 FORAPARTICULAR PURPOSE NO WARRANTIES OF MERCHANTABILITY OR FITNESS FOR PARTICULAR PURPOSE SHALL APPLY THE LIABILITY IF ANY OF HELMER FOR DIRECT DAMAGES WHETHER ARISING FROMA 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 12 Helmer General Information 5 2 360144 D E SERVICESISLIMITEDTOANAMOUNTNOTTOEXCEED THEPRICE OF THEPARTICULAR GOODS OR SERVICES GIVING RISE TO THE LIABILITY IN NO EVENT SHALL HELMER B

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