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Traulsen Master Service Manual

1. Oe TO Cee i CEH MOTE ALL PINS THIS CONNECTOR SHOULD HOT READ MORE THAN MOTE ALL FINS iN THESE TWO CONNECTORS SHOULD READIN LINE VOLTAGE 2 MOT Peer o V REMOVAL INSTALLATION INSTRUCTIONS V a ALL VERTICAL CONTROLLERS To remove INTELA TRAUL p n s 337 60090 00 337 60091 00 amp 337 60092 00 and G Series p n s 337 60093 00 337 60094 00 amp 337 60095 00 Vertical Controller from the unit in which it is installed proceed as follows If unable to access the unit from the rear perform steps 1 through 3 otherwise proceed to step 4 2 SLOT HEAD THUMBSCREWS LOUVER ASSEMBLY LOUVER ASSEMBLY IN RAISED POSITION 23 At front of unit remove two 2 slot head thumbscrews from bottom corners of louver assembly Set thumbscrews aside Swing louver assembly up and away from front of unit until it stops Remove two 2 Slot head thumb screws from top of louver assembly Set thumbscrews and louver assembly aside V REMOVAL INSTALLATION INSTRUCTIONS WARNING DISCONNECT ALL POWER BEFORE PROCEEDING At the top of the junction box remove three 3 Phillips head screws Set screws aside Locate one 1 Phillips head screw at bottom of junction box and remove Set screw aside PCIE REA D LP T Carefully slide junction
2. IV c G SERIES REFRIGERATOR amp FREEZER VERTICAL CONTROLLERS parts assembly for MIT Version only MIT CONTROL TROUBLE SHOOTING DIAGRAM PLEASE RETAIN FOR YOUR RECORDS PLWSOM j 24 THES COlRwER Amd THE RELAY E mir Pu LINE MOTE ALL PINS THIS COMME CTOR SHOULD HOT READ MORE THAN ALL FINS THESE TW CONNECTORS SHOULD READING LINE VOLTAGE if MOT p 19 IV CONTROL ARCHITECTURE IV d R amp A SERIES HEATED CABINET VERTICAL CONTROLLERS p n 337 60090 08 please note this control replaces p n 337 60065 00 F LED Ps LED RED LED l DISPLAY DOWN ARROW UP ARROW BUTTON BUTTON SET BUTTON ALARM CANCEL BUTTON RED ALARM LIGHT DOOR OPEN SYMBOL IRDA INFRA RED DATA AQUISITION HOT FOOD CABINET START UP pre MIT version When power is first applied to the unit you must set the temperature by pressing the SET and UP ARROW buttons at the same time using equal pressure with both thumbs until the temperature appears on the display Next use the UP button to reach the 160 level then press and release the SET button to lock it in After this is done you can turn the control ON and OFF by pressing and releasing the ALARM CANCEL button Be aware to watch for the display cons
3. F incr ENG 32 F 32 F After Defrost End blower to turn ON after drip time ends SCL Temperature Scale Sets the type of temp scale the display will read F or C FAC AE F CUS amp ENG dEF Defrost Type Defines the type of heat used to defrost the coil E G Nor O ENG Electric Hot Gas None or Off Cycle con Time Compressor Is ON In The amount of time in minutes that the 5 30 min in 1 min incr ENG 11 19 Case Of Cabinet Air Sensor compressor will remain On during one cycle in Failure case of a sensor failure COF Time Compressor Is OFF The amount of time in minutes that the 5 15 min in 1 min incr ENG 10 7 Case Of Cabinet Air Sensor compressor will remain OFF during one cycle in Failure case of a sensor failure dAd Door Visual Alarm Delay The amount of time in minutes that any one or 1 10 min in 1 min incr ENG 2 2 more doors can remain open before a visual alarm is set dAA Door Audible Alarm Delay The amount of time in minutes that any one or 1 15 min in 1 min incr ENG 15 15 more doors can remain open before an audible alarm is set 1 Undercounter models utilize a hot gas defrost with settings Ibd 4 ddc 20 amp dEF 36 VIII PARAMETER DEFINITIONS H1 Control CODE PARAMETER DEFINITION RANGE SEC REFRG FREEZER LEVEL PRESET PRESET APd Alarm Pause Delay The amount of time in seconds that any
4. coil that triggers 40 F to 80 F 5 F incr ENG 45 F 75 F the end of the defrost cycle ddE Drip Time at Defrost End The time in minutes between the defrost 1 5 min in 1 min incr ENG 2 2 heaters turning OFF amp the compressor turning ON CFA Clogged Filter Alarm Allows the clogged filter option to be turned OFF ON OFF ENG ON ON on units that include the hardware doA Door Open Alarm Allows the door open option to be turned OFF ON OFF ENG ON ON on units that include the hardware HA Relative Humidity Ability Allows the relative humidity option to be turned ON OFF ENG ON ON OFF on units that include the hardware odd Max Thermostat Operating The maximum amount of time in minutes that the 0 30 min in 5 min incr ENG 10 10 Delay After Defrost End display will read the last temp recorded before entering defrost cycle bdP Evap Blower Delay At Power The time in minutes after the unit is powered 0 5 min in 1 min incr ENG 1 1 ON ON that will pass before the evap blower is turned ON bdd Evap Blower Delay After The time in minutes after the drip time ends that 0 5 min in 1 min incr ENG 0 3 Drip Time will pass before the evap blower is turned ON bsd Evap Blower Start Set Point The temp of the evap coil that triggers the evap 30 F to 40 F in 1 F incr ENG 32 F 32 F After Defrost End blower to turn ON after drip time ends SCL Temperature Scale Sets the type of temp scale the display will read F or C FAC AE F CUS a
5. e Power Loss Alarm R amp A Series Refrigerators Freezers amp Hot Food Units Only f System Leak Alarm R amp A Series Refrigerators amp Freezers Only 9 Condenserclean Alarm R amp A Series Refrigerators amp Freezers Only Vil Accessing The Engineering Level VIII Parameter Definitions a Pre MIT Control Versions b MIT Control Version IX Index Page 2 Page 2 Page 3 Pages 4 5 Page 6 Page 7 Page 8 Page 9 Page 9 Page 10 Pages 11 13 Pages 14 16 Pages 17 19 Pages 20 22 Pages 23 24 Page 25 Page 26 Page 27 Page 28 Page 29 Page 30 Page 31 Page 32 Page 33 Pages 34 35 Pages 36 37 Page 38 I GENERAL INFORMATION a HOW TO USE THIS MANUAL Traulsen amp Co provides this manual as an aid to the service technician in installation operation and maintenance of INTELA TRAUL Controllers When used properly this service manual can help the service technician maintain troubleshoot and diagnose most of the problems and malfunctions that may occur with the Controllers This manual covers the four different types of Controllers Full Size Undercounter G Series R amp A Series Refrig erator amp Freezer and R amp A Series Hot Food These vary slightly from one another all exceptions are noted and where appropriate separate sections are provided While we believe that most aspects of the controllers are covered in this manual should you encounter a condition not addressed or require a
6. RS485 Address Address assigned to controller for 0 31 ENG 0 0 communication with Master and Service tool audible alarm is set 37 Address Cabinet Air Sensor H1 Cabinet Air Sensor MIT Control Panel H1 Control Panel MIT D Discharge Line Sensor H1 Discharge Line Sensor MIT Door Light Relay Door Switch E Evaporator Coil Sensor H1 Evaporator Coil Sensor MIT External Slave Relay E Fax Number G G Series Digital Controller General Information H Horn H1 Horn MIT Hot Food Iced Evaporator Coil Installation INTELA TRAUL Controllers L Louver Assembly Removal IX INDEX 12 15 18 amp 21 13 16 17 amp 22 11 14 amp 17 18 12 amp 18 19 22 amp 34 6 7 12 18 amp 21 13 16 amp 22 6 12 18 amp 21 13 16 amp 22 20 8 23 25 11 14 amp 17 23 amp 25 M Mounting Bracket P Parts Assembly H1 Parts Assembly MIT Phone Number R RH External Air Sensor H1 S Sensor Resistance Values T Transformer Troubleshooting Trees U Undercounter Ww Wiring Diagrams 25 12 15 18 amp 21 13 16 19 amp 22 2 9 amp 12 7 26 32 14 15 amp 17 HOURS OF OPERATION Monday thru Friday 7 30 am 4 30 pm CST Quality Refrigeration Traulsen 4401 Blue Mound Road Fort Worth TX 76106 Phone 800 825 8220 Fax Svce 817 740 6757 Website www traulsen com
7. THIS CONNECTOR SHOULD HOT READ MORE THAN 20 HITE ALL FINS 14 THESE TWO CONNECTORS SHOULD READING UNE VOLTAGE SO WOT BR S00 TD DANAD Pee p or 12 16 IV CONTROL ARCHITECTURE IV c G SERIES REFRIGERATOR amp FREEZER VERTICAL CONTROLLERS p n s 337 60093 00 337 60094 00 amp 337 60095 00 please note these controllers replace p n 337 60064 00 F LED RED LED DISPLAY UP ARROW BUTTON DOWN ARROW BUTTON SET BUTTON DEFROST SYMBOL REFRIGERATOR NOTE See parts assembly on pages 18 and 19 IV CONTROL ARCHITECTURE IV c G SERIES REFRIGERATOR amp FREEZER VERTICAL CONTROLLERS p n s 337 60093 00 337 60094 00 amp 337 60095 00 please note these controllers replace p n 337 60064 00 NN HOLDER CLIP 377 60038 00 DEFROST COMPRESSOR RELAY POWER LINE IN 2 BLOWER RELAY POWER LINE IN 1 V CABINET AIR NS HOLDER CLIP EVAP COIL 12 Set of 2 can be ordered separately 2 Requires unit Model No and Serial No to place order COIL SENSOR CABINET SENSOR 337 6007 1 02 337 60069 02 BLUE SHRINK TUBE GREEN SHRINK TUBE 18 3 Can be ordered separately IV CONTROL ARCHITECTURE
8. assembly on following pages 15 amp 16 IV CONTROL ARCHITECTURE IV b UNDERCOUNTER REFRIGERATOR amp FREEZER HORIZONTAL CONTROLLERS p n s 337 60096 00 amp 337 60097 00 please note these controllers replace p n 337 60062 00 CONTROLLER HORN HOLDER CLIP NN HOLDER 377 60038 00 DISCHARGE LINE YELLOW SHRINK TUBE COIL 7 BLUE SHRINK TUBE NOT USED DEFROST COMPRESSOR RELAY POWER LINE IN 2 7 SERINE Wes NOT USED DOOR HEATER EVAP BLOWER RELAY POWER LINE IN 1 TRANSFORMER RS485 1 Set of 2 can be ordered separately 2 Requires unit Model No and Serial No to place order COIL SENSOR DISCHARGE SENSOR 337 6007 1 02 337 60072 00 NS P d M BLUE SHRINK TUBE YELLOW SHRINK TUBE CABINET SENSOR 337 60069 02 gt TS GREEN SHRINK TUBE RH SENSOR 337 60068 00 Rev G software and below 337 60080 00 Rev H software and higher 15 N BLACK SHRINK TUBE ON 337 60080 00 ONLY 3 Can be ordered separately IV CONTROL ARCHITECTURE IV b UNDERCOUNTER REFRIGERATOR amp FREEZER HORIZONTAL CONTROLLERS parts assembly for MIT Version only ADAPTER HARMESE 333 6024n 5 refrigerarinr maien 333 53228 50 MIT CONTROL TROUBLE SHOOTING DIAGRAM PLEASE RETAIN FOR YOUR RECORDS A 2 24 0 HDMIXT THE di EI mi CO E ELAY 8 Fie FW DIRMI HOTE ALL PINS IH
9. the result of a faulty sensing circuit open or shorted in the Controller TROUBLESHOOTING b CHECKING FOR FAILED RELAYS Checking For A Failed Internal Controller Relay 1 Gain access to Controller compressor relay see REMOVAL INSTRUCTIONS within this service manual for the specific type of Controller you are dealing with 2 Locate the connector with the black blue purple wires and unplug it Refer to the schematic on the side of the Controller or refer to the appropriate Wiring Diagram contact factory referencing the serial number of the unit being worked on in order to obtain the appropriate wiring diagram 3 Using a volt ohm meter VOM with the power OFF check the resistance across the black to blue wires of the Controller connector If a completed circuit is indicated with no power to the Controller the contacts are stuck closed and the Controller should be replaced on MIT versions either the relay box or one of the other relays within the unit need to be replaced Checking For A Failed External Slave Relay 1 Gain access to Controller compressor relay see REMOVAL INSTRUCTIONS within this service manual for the specific type of Controller you are dealing with 2 Locate the external slave relay and unplug the harness connectors 3 Using a volt ohm meter VOM check the resistance from the COM terminal to the NO terminal If a completed circuit is indicated the contacts are stuck closed
10. want the unit to go into a defrost cycle incr amp OFF ENG dCF Dew Point Compensation An approx temperature difference to 0 100 FAC 100 100 Factor H1 control only compensate for the placement of ambient air CUS amp sensor only req d on units with RH sensor ENG ro Room Temperature Offset The difference in degrees between displayed 3 in 1 2 incr CUS amp 0 0 temp and the actual temp ENG Sdd Smart Defrost Delay The delay time in minutes between the end of the 0 120 min in 1 min incr ENG 60 60 n a on MIT version drip time and the time the evap soil sensor starts monitoring for smart defrost CrF Compressor Run Time Factor The multiplier used to figure compressor run 2 6 in 1 incr ENG 4 4 time for smart defrost CCr Clogged Compressor Run Time The minimum amount of time in minutes that 1 20 min in 1 min incr ENG 20 20 compressor must be running before generating a clogged filter alarm CdL Clogged Filter Discharge Line The target temperature that indicates that the 160 F to 220 F in 5 F ENG 220 F 220 F Temperature filter is clogged incr LCr Line Leak Alarm Compressor The amount of time in minutes the compressor 1 20 min in 1 min incr ENG 10 10 Run Time will run before the discharge line temperature is examined to detemine if a line leak exists LLD Line Leak Temperature The minimum rise in temperature in time 0 60 F ENG 45 F 45 F Difference indicated by the the Line Leak Alarm Compressor run time ENG Adr
11. 40 F up to current ENG 40 F 0 F setting SPH setting for SHH SHH Set Point High High Highest temperature of allowed range for From current setting for ENG 36 F 2 F setting SPH SHL up to 266 F SLL Set Point Low Low Lowest temperature of allowed range for 40 F up to current ENG 32 F 6 F setting SPL setting for SLH SLH Set Point Low High Highest temperature of allowed range for From current setting for ENG 34 F 4 F setting SPL SLL up to 266 F HI Upper Set Point Limit The highest temp the cabinet air is allowed 40 F to 266 F ENG 41 F to reach triggers HI TEMP alarm LO Lower Set Point Limit The lowest temp the cabinet air is allowed 40 F to 266 F ENG 30 F 10 F to reach triggers LO TEMP alarm AC Anticycling therm out The amount of time in minutes that the 1 10 min in 1 min incr ENG 1 1 compressor must be OFF between cycles HAd High Temp Alarm Delay at The time in minutes that the controller delays 0 60 min in 1 min incr ENG 60 60 Start Up amp Defrost End triggering the HI TEMP alarm at any power up or defrost end Ibd Interval Time Between The amount of time in hours between the end 1 9 hrs in 1 hr incr ENG 1 4 Defrosting of the drip time amp the start of the next defrost cycle ddc Max Duration of Defrost Cycle The maximum amount of time in minutes that 0 30 min in 5 min incr ENG 10 20 the defrost heaters will be turned ON during one defrost cycle CdE Coil Temp at Defrost End The temperature of the evap
12. Alarm Compressor The amount of time in minutes the compressor 1 20 min 1 min incr ENG 10 10 Run Time will run before the discharge line temperature is examined to detemine if a line leak exists LLD Line Leak Temperature The minimum rise in temperature in time 0 60 F ENG 45 F 45 F Difference indicated by the the Line Leak Alarm Compressor run time Ambient Air Sensor Temperature Display the Ambient Air temperature for 20 N A CUS amp n a on MIT version seconds ENG EL Evap Coil Sensor Display the Evaporator Core temperature for N A CUS amp Temperature 20 seconds ENG dL Discharge Line Sensor Display the Discharge Line temperature for 20 N A CUS amp Temperature n a on MIT version seconds ENG RH Relative Humidity Sensor Display the Relative Hunidity temperature for 20 N A CUS amp Temperature seconds ENG Adr RS485 Address Address assigned to controller for 0 31 ENG 0 0 communication with Master and Service tool audible alarm is set 35 PARAMETER DEFINITIONS H1 Control CODE PARAMETER DEFINITION RANGE SEC REFRG FREEZER LEVEL PRESET PRESET FOC Feature Option Per Controller Defines the model amp type of unit the n4 amp n2 FAC amp n4 n2 controller will control ENG SPH Thermostat Set Point High High point of desired cabinet temperature range SHH to SHL CUS amp 38 F O F ENG SP
13. Dew Point Compensation The 96 of time during a 6 minute interval that the FAC 100 100 Factor MIT control only door heaters are turned ON CUS amp ENG ro Room Temperature Offset The difference in degrees between displayed 3 in 1 2 incr CUS amp 0 0 temp and the actual temp ENG Sdd Smart Defrost Delay The delay time in minutes between the end of the 0 120 min in 1 min incr ENG 60 60 n a on MIT version drip time and the time the evap soil sensor starts monitoring for smart defrost CrF Compressor Run Time Factor The multiplier used to figure compressor run 2 6 in 1 incr ENG 4 4 time for smart defrost Sd1 Smart Defrost 1 The maximum time in minutes allowed from last 1 60 min in 1 min incr ENG 30 30 n a on MIT version door alarm used to initiate smart defrost Sd2 Smart Defrost 2 The minimum amount of time in minutes that the 1 30 min in 1 min incr ENG 15 15 n a on MIT version door must remain closed to initiate smart defrost Sd3 Smart Defrost 3 The percent of rise in evap coil temp needed to 1 99 in 1 incr ENG 50 50 n a on MIT version initiate smart defrost CCr Clogged Compressor Run Time The minimum amount of time in minutes that the 1 20 min in 1 min incr ENG 20 20 compressor must be running before generating a clogged filter alarm CdL Clogged Filter Discharge Line The target temperature that indicates that the 160 F to 220 F in 5 F ENG 220 F 220 F Temperature filter is clogged incr LCr Line Leak
14. I L LI Press Display will read 000 with the left digit flashing Press Display will read 000 with the INTELA TRAUL F center digit flashing Press V until the center ri digit changes to an Press Display will read 0 0 with the right INTELA TRAUL digit flashing Press until right digit changes F Co H to a 1 Press d Display will read Ji SPH Press again Press Q to adjust temperature to the desired setting 38 F to 40 F for refrigerators and INTELA TRAUL 0 F for freezers When display reads the desired temperature press Press Qi display reads SPL Press e Press 4 or to adjust temperature to the TRAUL F desired setting 34 F for refrigerators and 4 F for freezers Press Press to exit not on G Series No TROUBLESHOOTING Ill CHECKING FOR DEFECTIVE SENSORS Instructions For Programming The Control The Display Will Read INTELA TRAUL Display will read CUS E L LI INTELA TRAUL Press Display will read 000 with the left F rin digit flashing LILILJ Press Display will read 000 with the INTELA TRAUL T center digit flashing Press v until the center m 1 Lib digit changes to an A Press Display will read 0 0 with the right INTELA TRAUL F c digit flashing Press 4 until right digit changes i g g g g g a toa 1
15. L Thermostat Set Point Low Low point of desired cabinet temperature range SLH to SLL CUS amp 34 F 4 F ENG SHL Set Point High Low Lowest temperature of allowed range for 40 F up to current ENG 36 F 2 F setting SPH setting for SHH SHH Set Point High High Highest temperature of allowed range for From current setting for ENG 40 F 0 F setting SPH SHL up to 266 F SLL Set Point Low Low Lowest temperature of allowed range for 40 F up to current ENG 32 F 6 F setting SPL setting for SLH SLH Set Point Low High Highest temperature of allowed range for From current setting for ENG 34 F 4 F setting SPL SLL up to 266 F HI Upper Set Point Limit The highest temp the cabinet air is allowed 40 F to 266 F ENG 41 F to reach triggers HI TEMP alarm LO Lower Set Point Limit The lowest temp the cabinet air is allowed 40 F to 266 F ENG 30 F 10 F to reach triggers LO TEMP alarm AC Anticycling therm out The amount of time in minutes that the 1 10 min in 1 min incr ENG 1 1 compressor must be OFF between cycles HAd High Temp Alarm Delay at The time in minutes that the controller delays 0 60 min in 1 min incr ENG 60 60 Start Up amp Defrost End triggering the HI TEMP alarm at any power up or defrost end Ibd Interval Time Between The amount of time in hours between the end 1 9 hrs in 1 hr incr ENG 1 6 Defrosting of the drip time amp the start of the next defrost cycle Max Duration of Defrost Cycle The maximum amo
16. Press Ll t until display reads EL Press INTELA TRAUL If the display now reads 40 check for a loose connection on the EVAPORATOR sensor If the display has a very high reading such as 266 replace the EVAPORATOR sensor NOTE Erroneous readings may be the result of a faulty sensing circuit open or shorted in the Controller TROUBLESHOOTING Ill CHECKING FOR DEFECTIVE SENSORS CONT D Instructions For Programming The Control The Display Will Read Press Q display reads DL Press e INTELA TRAUL If the display now reads 40 check for a loose connection on the DISCHARGE LINE sensor If the display has a reading of 220 or higher check for lack of adequate air flow through the condenser a bad condenser fan motor or any condition around the unit which could cause a high temperature such as a steam table or a crossdraft Otherwise replace the DISCHARGE LINE sensor NOTE Erroneous readings may be the result of a faulty sensing circuit open or shorted in the Controller Press 4 until display reads AA Press e MIE ATRA nB Display should read the approximate ambient air temperature behind the louver panel If the display NOTE Ambient Air Sensor not included on MIT version controllers reads 111 check for a loose connection on the RH AMBIENT AIR sensor If the display reads 32 0 check the sensor for a short circuit NOTE Erroneous readings may be
17. Quality Refrigeration INTELA TRAUL MASTER SERVICE MANUAL INTELA TRAUL For All Full Size Undercounter G Series and R amp A Series Refrigerator Freezer Dual Temp and Hot Food Unit Controllers Traulsen 4401 Blue Mound Road Fort Worth Texas 76106 Phone 800 825 8220 or 817 625 9671 Fax Service 817 740 6757 Form Number TR35705 Revised 4 03 5 1 General Information a How To Use This Manual b About INTELA TRAUL Il Basic Service Procedures a Adjusting The Temperature Troubleshooting Checking For Defective Sensors b Checking For Failed Relays Checking For Other Failed Components d Checking For Iced Evaporator Coil e Cabinet amp Coil Sensor Resistance Values f Relative Humidity Sensor Resistance Values 9 Proper Sensor Placement IV Control Architecture R amp Series Refrigerator amp Freezer Vertical Controllers b Undercounter Refrigerator amp Freezer Horizontal Controllers G Series Refrigerator amp Freezer Vertical Controllers d R amp A Series Heated Cabinet Vertical Controllers V Removal Installation Instructions All Vertical Controllers b All Horizontal Controllers VI Problem Diagnosis a How To Use Troubleshooting Trees b Hi Temp Alarm all refrigerator amp freezer models Lo Temp Alarm all refrigerator amp freezer models d Door Open Alarm R amp A Series Refrigerators Freezers amp Hot Food Units Only
18. RM R amp A Series Controllers Onl INTELA TRAUL oF Does discharge temperature rise 45 within 5 minutes of a refrigeration cycle starting INTELA TRAUL F refrigerant Check compressor 15 NOT OK for low refrigerant gt Check discharge IS NOT OK line sensor Go to pages 4 7 amp 9 Replace failed sensor Are sensor probe s properly gt connected Connect probe s Check for dislocated LED sensor probe s Relocate probe s to proper position 31 g PROBLEM DIAGNOSIS CONDENSERCLEAN ALARM amp A Series Controllers Only INTELA TRAUL F INTELA TRAUL F Is condenser S coil dirty p Clean Condenser Coil Is condenser fan EIU disconnected Properly connect fan Check for a failed YES condenser fan Replace fan Are there obstructions at YES top or rear p of unit Remove obstructions Is room temperature YES p too hot Lower the room temperature Are there any objects in the way YES that may be causing restricted air flow Move unit or objects for better air flow 32 ACCESSING THE ENGINEERING LEVEL Vil ACCESSING THE ENGINEERING LEVEL Not all control parameters can be adjusted at the customer level of access To adjust these paramet
19. T SENSOR 337 60069 02 RN HORN 337 60070 00 gt GREEN SHRINK TUBE RH SENSOR 337 60068 00 Rev G software and below 337 60080 00 Rev H software and higher N BLACK SHRINK TUBE ON 337 60080 00 ONLY 3 Can be ordered separately 12 IV CONTROL ARCHITECTURE IV b R amp A SERIES REFRIGERATOR amp FREEZER VERTICAL CONTROLLERS parts assembly for MIT Version only MIT CONTROL TROUBLE SHOOTING DIAGRAM PLEASE RETAIN FOR YOUR RECORDS PLWSOH 21 24 01 THE EPI mi Code E AE 8 d mir FW DIRMI ALL FINS N THESE TWO CONNECTORS SHOULD READING LINE VOLTAGE MOTE ALL FNS THIS CONNECTOR SHOULD HOT READ MORE THAN 20 VAC PET Lee r ira Ns 2 E CO are i 300 111 111 2 2 m LEONE MDI M weg A E ML E 10 O mn 13 IV CONTROL ARCHITECTURE IV b UNDERCOUNTER REFRIGERATOR amp FREEZER HORIZONTAL CONTROLLERS p n s 337 60096 00 amp 337 60097 00 please note these controllers replace p n 337 60062 00 F LED LED DEFROST SET UPARROW SYMBOL BUTTON BUTTON RED LED DISPLAY RED ALARM LIGHT ALARM CANCEL DOWN ARROW BUTTON BUTTON NOTE See parts
20. age with the heading describing the type of problem occurring Begin at the top of the page and follow the tree step by step When a check box is reached refer to the suggested section to make the check suggested Once a solution box is reached refer to the suggested section to verify that the component in the solution box is indeed defective and repair or replace per the direction in that section 26 b PROBLEM DIAGNOSIS TEMP ALARM Doors open longer than 5 minutes Excessive amount of hot product placed in unit Is evaporator coil frozen up Check compressor for low refrigerant Check that sensor probe s properly connected YES Replace failed sensor Go to pages 4 7 amp 9 YES Door s Reduce volume of hot product YES 5 Defrost D evaporator coil Go to page 8 Add refrigerant IS NOT OK probe s 27 amp A Series Controllers INTELA TRAUL F H i l INTELA TRAUL F T REFRIGERATOR FREEZER c PROBLEM DIAGNOSIS LO TEMP ALARM R amp ASeries Controllers INTELA TRAUL INTELA TRAUL F Is temperature YES setting for unit set too low Increase temperature Go to page 3 Is there a NO food product in unit Add product to the unit REFRIGERATOR FREEZER Check for failed IS NOT OK
21. and the slave relay should be replaced Checking For A Failed Door Light Relay NOTE This procedure is for the R amp A Series Refrigerator and Freezer Models only 1 Gain access to Controller door relay see REMOVAL INSTRUCTIONS within this service manual for the specific type of Controller you are dealing with 2 Remove the wire from the door relay coil 3 Using a volt ohm meter VOM check across the relay contacts If an open across the contacts is not indicated replace the door relay 4 Physically check the switch for evidence of water If the switch has water in it replace the switch 6 TROUBLESHOOTING c CHECKING FOR OTHER FAILED COMPONENTS Checking For A Failed Door Switch 1 Remove door s from unit you are working on 2 Locate door switch it is located behind the top door hinge 3 Remove the switch from the cabinet 4 Using a volt ohm meter VOM check across the switch contacts COM to NC should have continuity COM to NO should read open If not replace the switch 5 Reinstall the switch and hinge onto the cabinet NOTE If the unit has more than one door check ALL door switches in the same manner as described in the previous steps Checking For A Failed Controller Transformer 1 Check incoming voltage Voltage at the unit must be within the voltage range shown in the table below 2 If Controller has a battery backup disconnect it Otherwise unplug Controller then pl
22. box away from front of unit until all wiring and connections to the controller are exposed Locate all nine 9 Controller connections five for G Series then carefully disconnect each one Firmly grasp and compress the rounded portion of the middle prong on each holder clip Slowly slide each holder clip off the controller Set clips aside NOTE Be sure ALL components have been disconnected from the Controller before performing the next step Slowly pull Controller through mounting hole and set aside TO RE INSTALL CONTROLLER REVERSE THE PRECEEDING PROCEDURE 24 V REMOVAL INSTALLATION INSTRUCTIONS V b ALL HORIZONTAL CONTROLLERS To remove INTELA TRAUL p n s 337 60096 00 amp 337 60097 00 Horizontal Controller from the unit in which it is installed proceed as follows WARNING DISCONNECT ALL POWER BEFORE PROCEEDING 25 Check to make sure that the power cable is disconnected from the wall Remove the four 4 black plugs that are located in each corner of the power pack louver assembly Set plugs aside Remove the four 4 Phillips head screws holding the louver assembly in place Set screws and louver assembly aside Remove the two 2 Phillips head screws thathold the Controller and the bracket assembly to the condenser fan assembly Set screws aside Locate all nine 9 Controller connections then carefully dis connect each one Firmly grasp and compress the round
23. ducting restricted Remove restriction Check coil sensor Go to pages 4 7 amp 9 Replace failed sensor Replace controller See note below Will unit enter manual defrost Replace heater or Check defrost related wiring heaters on freezers Will control cycle Check cabinet unit at set temps sensor Go to pages 4 7 amp 9 Replace controller See note below NOTE See the corresponding pages to remove and replace the controller Replace failed cabinet sensor R amp A Series Refrigerator amp Freezer 23 24 G Series Refrigerator amp Freezer 23 24 Undercounter Refrigerator amp Freezer 25 R amp A Series Hot Food 23 24 Problem with refrigeration system 8 TROUBLESHOOTING lll e CABINET COIL DISCHARGE SENSOR RESISTANCE VALUES Temp Ohms Temp C Temp CF 7 5 osko 205 sszKo Arr 9 rokoj 459 418KO 467 1 ezako 427 376 0 715 erko 94 338 6 7 3 05 5442 2 75 249 0 2 25 2 05 1 86 1 68 1 54 1 40 1 28 1 17 1 07 975 0 899 0 837 0 759 0 961 7000 mz 6790 Ill f RELATIVE HUMIDITY SENSOR RESISTANCE VALUES Relative Humidity Relative Humidity TROUBLESHOOTING g PROPER SENSOR PLACEMENT The coil sensor should be inserted into the return air side of the evaporator coil The sensor
24. ed portion of the middle prong on each holder clip Slowly slide each holder clip off the Controller Set clips aside Slowly remove Controller from mounting holes and set aside TO RE INSTALL CONTROLLER REVERSE THE PRECEEDING PROCEDURE VI PROBLEM DIAGNOSIS VI HOW TO USE THE TROUBLESHOOTING TREES The troubleshooting trees on the following pages were developed as an aid to the service technician in determining the exact solution to a certain problem or malfunction When used as designed the troubleshooting trees can lead you from a general symptom to the most likely component to suspect as the cause of the problem The trees are made up of three different types of boxes QUESTION CHECK SOLUTION QUESTION boxes ask a yes no question and the answer will lead to either another question box a check box or a solution box CHECK boxes will suggest a point to check for proper operation and will often refer you to a page in either the SERVICE INFORMATION or the REMOVAL INSTALLATION sections of this manual The result of the check may lead to another box or a solution box SOLUTION boxes suggest the most likely component to cause the malfunction described in the heading of the tree When reaching a solution box do not immediately assume the component is defective The final step is to use the SERVICE INFORMATION section of this manual to verify that the component is defective To use the troubleshooting trees first find the p
25. ers it is first necessary to enter the ENGINEERING LEVEL of access Please follow the procedure below to do so Instructions For Programming The Control The Display Will Read INTELA TRAUL Display will read CUS F C INTELA TRAUL T Press Display will read 000 with the INTELA TRAUL F Cc left digit flashing Press v until the left digit changes to a 9 until EnG is displayed INTELA TRAUL F Display will read 900 with the center digit flashing Press QQ until the center digit changes to a 9 Press Display will read 990 with the right digit flashing Press v until right digit changes to an E The display will read 99E Press Display will read for G Series models press v Display will read FOC PARAMETER DEFINITIONS CODE PARAMETER DEFINITION RANGE SEC REFRG FREEZER LEVEL PRESET PRESET FOC Feature Option Per Controller Defines the model amp type of unit the n4 amp n2 FAC amp n4 n2 controller will control ENG SPH Thermostat Set Point High High point of desired cabinet temperature range SHH to SHL CUS amp 38 F O F ENG SPL Thermostat Set Point Low Low point of desired cabinet temperature range SLH to SLL CUS amp 34 F 4 F ENG SHL Set Point High Low Lowest temperature of allowed range for
26. inutes that the temp will 1 5 min in 1 min incr ENG 1 1 be displayed between visual alarm messages CL Time of Day 24 hour clock Default time setting for clock 00 00 to 23 59 CUS amp 00 00 00 00 setting for SHH ENG dAy Date Default date for recording CUS amp 1 1 1999 01 01 1999 ENG dS Daylight Savings Time Allows the clock to automatically update for yes no CUS amp YES YES daylight savings time ENG Sd Start Manual Defrost Allows the customer service tech to manually yes no CUS amp NO NO start a defrost cycle ENG DL1 Defrost Lockout 1 The time frame during which the customer does 2 00 to 8 00 in 30 min CUS amp OFF OFF tnot want the unit to go into a defrost cycle incr amp OFF ENG DL2 Defrost Lockout 2 The time frame during which the customer does 8 00 to 14 00 in 30 min CUS amp OFF OFF tnot want the unit to go into a defrost cycle incr amp OFF ENG DL3 Defrost Lockout 3 The time frame during which the customer does 14 00 to 20 00 in 30 min CUS amp OFF OFF tnot want the unit to go into a defrost cycle incr amp OFF ENG DL4 Defrost Lockout 4 The time frame during which the customer does 20 00 to 2 00 in 30 min CUS amp OFF OFF tnot want the unit to go into a defrost cycle incr amp OFF ENG dCF Dew Point Compensation An approx temperature difference to 0 100 FAC 100 100 Factor H1 control only compensate for the placement of ambient air CUS amp sensor only req d on units with RH sensor ENG dCF
27. jr compressor relay _ E Goto page or slave relay Go to page 23 24 Check that sensor probe s properly connected Connect probe s YES Replace failed sensor Go to pages 4 7 amp 9 NOTE ON HOT FOOD UNITS ONLY Hot food units are designed to hold hot food at set temperature The cabinet is not designed to heat cold products 28 d PROBLEM DIAGNOSIS DOOR OPEN ALARM amp A Series Controllers Only INTELA TRAUL INTELA TRAUL rc E Has door been opened for 5 minutes Close The Door i failed door light relay Check for failed YES door light relay Go to page 7 Is there YES water in the door Switch Replace door switch Check for mis wired door switch Go to page 7 Replace door switch 29 e PROBLEM DIAGNOSIS POWER LOSS ALARM R amp A Series Controllers Only INTELA TRAUL INTELA TRAUL F C F Is unit NO FIC i plugged in 112 Has unit suffered a loss of YES power due to bad weather Full operation will return when electrical service is restored Contact local utility provider Is unit receiving YES b low voltage input Check for failed Controller YES b transformer Go to page 7 Replace Controller transformer 30 f PROBLEM DIAGNOSIS SYSTEM LEAK ALA
28. mp ENG dEF Defrost Type Defines the type of heat used to defrost the coil E G Nor O ENG Electric Hot Gas None or Off Cycle con Time Compressor Is ON In The amount of time in minutes that the 5 30 min in 1 min incr ENG 11 19 Case Of Cabinet Air Sensor compressor will remain On during one cycle in Failure case of a sensor failure COF Time Compressor Is OFF The amount of time in minutes that the 5 15 min in 1 min incr ENG 10 7 Case Of Cabinet Air Sensor compressor will remain OFF during one cycle in Failure case of a sensor failure dAd Door Visual Alarm Delay The amount of time in minutes that any one or 1 10 min in 1 min incr ENG 2 2 more doors can remain open before a visual alarm is set dAA Door Audible Alarm Delay The amount of time in minutes that any one or 1 15 min in 1 min incr ENG 15 15 more doors can remain open before an audible alarm is set 34 VIII PARAMETER DEFINITIONS CODE PARAMETER DEFINITION RANGE SEC REFRG FREEZER LEVEL PRESET PRESET APd Alarm Pause Delay The amount of time in seconds that any visual 2 10 sec in 2 sec incr ENG 4 4 alarm text will remain on the display The pause will always be half AAS Audible Alarm Style Style of audible alarm OFF 3 second burst OFF BSt Cnt CUS amp OFF OFF continuous ENG dis Temp Display The amount of time in m
29. should be centered approximately 2 two inches from the top horizontally through coil centered in coil The cabinet air sensor should be mounted inside the hump on the return air side of the evaporator Coil The discharge sensor should be mounted on the hot gas side of the compressor Placement should be as close to the compressor as possible and must be before the hot gas loop Discharge sensors must also be insulated IV CONTROL ARCHITECTURE IV a R amp SERIES REFRIGERATOR amp FREEZER VERTICAL CONTROLLERS p n s 337 60090 00 337 60091 00 amp 337 60092 00 please note these controllers replace p n 337 60063 00 F LED C LED INTELA TRAUL RED LED DISPLAY DOWN ARROW UP ARROW BUTTON BUTTON SET BUTTON ALARM CANCEL BUTTON RED ALARM LIGHT DEFROST DOOR OPEN SYMBOL SYMBOL IRDA INFRA RED DATA AQUISITION NOTE See parts assembly on pages 12 and 13 IV CONTROL ARCHITECTURE 2 NN HOLDER CLIP 377 60038 00 DEFROST COMPRESSOR RELAY POWER LINE IN 2 DOOR HEATER EVAP BLOWER RELAY POWER LINE IN 1 b I DISCHARGE LINE DOOR RELAY CABINET AIR RH AMBIENT AIR x HOLDER EVAP COIL 1 Set of 2 can be ordered separately EVAP COIL 2 Requires unit Model No and Serial No to place order COIL SENSOR DISCHARGE SENSOR 337 6007 1 02 337 60072 00 NS M BLUE SHRINK TUBE YELLOW SHRINK TUBE CABINE
30. tantly reading OFF This is an indication of a possible faulty cabinet sensor To remedy replace the sensor and rest the operating temperature HOT FOOD CABINET START UP MIT version The MIT control offers an additional means of turning the cabinet heaters ON and OFF After the operating tempera ture has been set the operator can continuously turn the unit OFF and then back ON again to the same operating temperature by pressing the ON OFF button on the face of the control Please note that this feature will not function if the control is in an alarm state with the alarm LED illuminated NOTE See parts assembly on pages 21 and 22 IV CONTROL ARCHITECTURE IV d R amp A SERIES HEATED CABINET VERTICAL CONTROLLERS p n 337 60090 08 please note this control replaces p n 337 60065 00 HOLDER 377 60038 00 POWER LINE 1 4 CONTROLLER N HORN 3 N CABINET AIR DOOR RELAY CABINET SENSOR 337 60069 00 337 60070 00 GREEN SHRINK TUBE 1 Set of 2 can be ordered separately 2 Requires unit Model No and Serial No to place order 21 IV CONTROL ARCHITECTURE IV d R amp A SERIES HEATED CABINET VERTICAL CONTROLLERS parts assembly for MIT Version only MIT CONTROL TROUBLE SHOOTING DIAGRAM PLEASE RETAIN FOR TOUR RECORDS A 1 24 01 THE 4 BEI mi set THE PLAY
31. ug it back in 3 If Controller display does not come back on use a volt ohm meter VOM and check the output voltage of the Controller transformer 4 Ifthe output voltage from the transformer is NOT VOLTAGE within the range shown in the table bat right replace the transformer If the transformer tests OK replace MN STANDARD the Controller MAX STANDARD 104 VAC 126 VAC 115 60 1 187 VAC 253 VAC 208 230 60 1 10 2 Volts 13 8 Volts Transformer MIT 12 4 MIT 14 7 Output Voltage Checking Cabinet Coil or Discharge Line Sensors 1 Gain access to CABINET COIL or DISCHARGE LINE sensor and disconnect it 2 Place tip of sensor probe in a mixture of icewater for several minutes Allow enough time for sensor probe to aclimate to the icewater 3 At 32 probe resistance should be 32 7K Ohms 1096 If resistance is not within this range replace the sensor NOTE For other resistance values for the CABINET and DISCHARGE sensors at temperatures from 5 F to 212 F refer to page 14 TROUBLESHOOTING lll d CHECKING FOR ICED EVAPORATOR COIL With evaporator clear of ice is there proper air flow Check evaporator aaa blower motor for eplace evaporator roper operation prop blower motor Check DEF settings in controller parameters NOT OK Go to page 34 for MIT or page 36 for H1 Reset parameters Evaporator or
32. unt of time in minutes that 0 30 min in 5 min incr ENG 10 15 the defrost heaters will be turned ON during one defrost cycle CdE Coil Temp at Defrost End The temperature of the evap coil that triggers 40 F to 80 F 5 F incr ENG 45 F 70 F the end of the defrost cycle ddE Drip Time at Defrost End The time in minutes between the defrost 1 5 min in 1 min incr ENG 2 2 heaters turning OFF amp the compressor turning ON CFA Clogged Filter Alarm Allows the clogged filter option to be turned OFF ON OFF ENG ON ON on units that include the hardware doA Door Open Alarm Allows the door open option to be turned OFF ON OFF ENG ON ON on units that include the hardware HA Relative Humidity Ability Allows the relative humidity option to be turned ON OFF ENG ON ON OFF on units that include the hardware odd Max Thermostat Operating The maximum amount of time in minutes that the 0 30 min in 5 min incr ENG 10 10 Delay After Defrost End display will read the last temp recorded before entering defrost cycle bdP Evap Blower Delay At Power The time in minutes after the unit is powered 0 5 min in 1 min incr ENG 1 1 ON ON that will pass before the evap blower is turned ON bdd Evap Blower Delay After The time in minutes after the drip time ends that 0 5 min in 1 min incr ENG 0 3 Drip Time will pass before the evap blower is turned ON bsd Evap Blower Start Set Point The temp of the evap coil that triggers the evap 30 F to 40 F in 1
33. visual 2 10 sec in 2 sec incr ENG 4 4 alarm text will remain on the display The pause will always be half AAS Audible Alarm Style Style of audible alarm OFF 3 second burst OFF BSt Cnt CUS amp OFF OFF continuous ENG dis Temp Display The amount of time in minutes that the temp will 1 5 min in 1 min incr ENG 1 1 be displayed between visual alarm messages CL Time of Day 24 hour clock Default time setting for clock 00 00 to 23 59 CUS amp 00 00 00 00 setting for SHH ENG dAy Date Default date for recording CUS amp 1 1 1999 01 01 1999 ENG dS Daylight Savings Time Allows the clock to automatically update for yes no CUS amp YES YES daylight savings time ENG Sd Start Manual Defrost Allows the customer service tech to manually yes no CUS amp NO NO start a defrost cycle ENG DL1 Defrost Lockout 1 The time frame during which the customer does 2 00 to 8 00 in 30 min CUS amp OFF OFF tnot want the unit to go into a defrost cycle incr amp OFF ENG DL2 Defrost Lockout 2 The time frame during which the customer does 8 00 to 14 00 in 30 min CUS amp OFF OFF tnot want the unit to go into a defrost cycle incr amp OFF ENG DL3 Defrost Lockout 3 The time frame during which the customer does 14 00 to 20 00 in 30 min CUS amp OFF OFF tnot want the unit to go into a defrost cycle incr amp OFF ENG DL4 Defrost Lockout 4 The time frame during which the customer does 20 00 to 2 00 in 30 min CUS amp OFF OFF tnot
34. wiring diagram please contact Traulsen amp Co Inc 4401 Blue Mound Road Fort Worth TX 76106 Attn Service Department Phone 800 825 8220 or 817 625 9671 817 740 6757 service communication must include Model Number amp Serial Number Of Unit A detailed explanation of the problem l b ABOUT INTELA TRAUL The Traulsen INTELA TRAUL and G Series microprocessor controls are microprocessor based systems which re place several electromechanical components typically built into refrigeration products such as time clocks ther mometers defrost limit switches and temperature controls all combined into one solid state modular unit These microprocessor controls both monitor a cabinet air sensor and a coil sensor The INTELA TRAUL on the R amp A Series also includes a discharge line sensor and a relative humidity sensor H1 versions only In conjuction with the programmed parameters of the control and the information received it cycles the refrigeration system ON and OFF at set temperatures initiates and or terminates defrost cycles and initiates one of several alarm features if a problem is sensed R amp A Series only Both controls also allow the operator to cycle the door perimeter heaters ON OFF as needed 2 BASIC SERVICE PROCEDURES ADJUSTING THE TEMPERATURE Instructions For Programming The Control The Display Will Read INTELA TRAUL Display will read CUS

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