INTELA-TRAUL® MASTER SERVICE MANUAL
Contents
1. setting jumper Connector Pin No Color Signal 1 Gray Blower 2 Orange Door Heater 3 Green Alarm From Controller 4 5 6 Brown DC 12201 7 White Purple RS485 Part numbers may vary according to s 33 8 Black Ground model type HE 9 YellowRed 12VAC BT c 10 Blue Compressor 11 Purple Defrost f 12 Yellow Door Open Signal PIN connections may Date code wil be listed 13 f Red Power tp Hom not be available for as the week year 01 52 Voltage should 14 Orange all model types 2001 2100 when the not be more than 15 White control is manufactured 5DCwhen 16 Pink 85485 measured to 17 Red 12 VDC to Controller ground pin 8 4g 13 IV CONTROL ARCHITECTURE IV c UC amp UL UNDERCOUNTER HORIZONTAL CONTROLLER F LED C LED DEFROST SET UPARROW SYMBOL BUTTON BUTTON RED LED DISPLAY FREEZER RED ALARM LIGHT ALARM CANCEL DOWNARROW BUTTON BUTTON DEFROST COMPRESSOR e Set of two can be ordered separately RELAY POWER LINE IN 2 2 Requires unit model number and serial EN number to place order DOOR HEATER EVAP A BLOWER RELAY POWER LINE IN 1 TRANSFORMER RS485 A HOLDER CLIP Way P N 337 60038 00 a USED M AI HOLDER E PIN 337 60038 00 pof DISCHARGE HORN LINE BLUE SHRINK TUBE YELLOW SHRINK TUBE COIL SENSOR DISCHARGE SENSOR PIN 337 60071 02 PIN 337 62. CCR na n a n a n a n a n a CDL na n a nla nla nla DOA DAD na n a APD nla n a n a n a n a n a n a ATD AAS CL Set the hours and minutes in military time DAY Set the year month day of the month and day of the week DS ON ON ON ON ON ON DL1 OFF OFF OFF OFF OFF OFF OFF DL2 OFF 11 300mOFF OFF OFF OFF OFF DL3 OFF 5 30pm OFF OFF OFF OFF OFF DL4 OFF OFF OFF OFF OFF OFF OFF DCF na n a n a CON 19 19 19 19 11 11 11 COF 7 7 7 7 10 10 10 EL Will display evaporator coil temp in real time every time an arrow is pressed DL Will display discharge line temp in real time every time an arrow is pressed CB Will display cabinet air temp in real time every time an arrow is pressed PLn Will display power line voltage in real time every time an arrow is pressed RCO Turns ON OFF the compressor relay for 10 seconds or until an arrow is pressed RdF Turns ON OFF the defrost relay for 10 seconds or until an arrow is pressed RFA Turns ON OFF the blower relay for 10 seconds or until an arrow is pressed RDH Turns ON OFF the door heater triac for 10 seconds or until an arrow is pressed PRO Set the controller in receiving mode for programming CEP Clear all controller memories and reloads the factory default parameters REF Firmware revis
3. Quality Refrigeration INTELA TRAUL MASTER SERVICE MANUAL __ INTELA TRAUL LILI oga w FREEZER 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 10 04 TABLE OF CONTENTS 1 General Information a How To Use This Manual Page 2 b About INTELA TRAUL Page 2 c Operating The Controller Page 2 Il Basic Service Procedures a Adjusting The Temperature Page 3 b Starting A Manual Defrost Cycle R amp A Series Page 4 c Starting A Manual Defrost Cycle G Series Page 5 Ill Troubleshooting a Checking For Defective Sensors Page 6 b Checking For Failed Relays Page 7 c Checking For Other Failed Components Page 8 d Checking For Iced Evaporator Coil Page 9 e Proper Sensor Placement Page 10 IV Control Architecture amp A Series Refrigerator amp Freezer Vertical Controllers Page 11 14 b Undercounter Refrigerator amp Freezer Horizontal Controllers Page 15 C G Series Refrigerator amp Freezer Vertical Controllers Page 16 17 d R amp A Series Heated Cabinet Vertical Controllers Page 18 20 V Removal Installation a All Vertical Controllers Pages 21 22 b All Horizontal Controllers Page 23 VI Problem Diagnosis a How To Use Troubleshooting Tre
4. 3 Remove the switch from the cabinet 4 Usinga volt ohm meter VOM check across the switch contacts 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 steps 1 thru 5 above Checking For A Failed Controller Transformer H1 amp MIT control versions only 1 Check incoming voltage Voltage at the unit must be within the ranges shown in the table below MN MAX STANDARD 104 VAC 187 VAC 208 230 60 1 10 2 Volts 13 8 Volts Transformer MIT 12 4 MIT 14 7 Output Voltage 2 If the controller display does not come back on use a volt ohm meter VOM and check the output voltage of the controller transformer 3 If the output voltage from the transformer is not within the range shown in the table above replace the transformer If the transformer tests OK replace the controller instead 4 For equipment manufactured with the MIT II controller version the transformer is mounted inside the relay module Check between 17 and 8 on 18 pin connector on relay module for 12V DC Checking Cabinet Coil or Discharge Line Sensors 1 Gain access to CABINET COIL or DISCHARGE LINE sensor and disconnect it 2 Place tip if sensor probe in a mixture of icewater for several minutes Allow enough time for sensor probe to aclimate to the icewater 3 At 32 F pr
5. IS OK Check discharge IS NOT OK senso Add refrigerant YES Replace failed sensor Are sensor probes properly connected YES YES Check for disolocated sensor probe Relocate probe s to proper position 1 See procedure on page 8 29 VI g CONDENSERCLEAN ALARM Is condenser YES coil dirty Clean condenser coil condenser fan YES disconnected Properly conenct fan Check forfailed IS NOT OK condenser fan Replace fan Are there any obstructions at top or rear of unit YES Remove obstructions Is the room temperature too warm YES Lower the room temperature Is air flow Move unit or objects for better air flow YES restricted by any objects 30 ACCESSING THE ENGINEERING LEVEL VII a ACCESSING THE ENGINEERING LEVEL Not all control parameters can be adjusted at the customers level of access To adjust these other parameters it is first necessary to gain access to the ENGINEERING LEVEL Please follow the below procedure in order to enter this level The Display Will Read Step 1 Press Display will read CUS cc Step 2 Press EnG is displayed Step 3 Press Display will read 000 with the left digit flashing Step 4 Press I until the left digit changes t
6. 12 Yellow Door Open Signal PIN connections may Date code wil be listed 15 5 Red Power te Hom not be available for as the week year 01 52 4 all model types 2001 2100 when the 15 control is manufactured 16 Pink RS485 17 Red 12 VDC to Controller 18 Black 12VAC Voltage should not be more than 5 DC when measured to ground pin 8 15 IV CONTROL ARCHITECTURE IV d G SERIES REFRIGERATOR amp FREEZER VERTICAL CONTROLLER F LED C LED RED LED DISPLAY UP ARROW BUTTON DOWN ARROW BUTTON SET BUTTON DEFROST SYMBOL DEFROST COMPRESSOR RELAY POWER LINE IN 2 HOLDER CLIP WO 377 60038 00 DOOR HEATER EVAP BLOWER RELAY POWER LINE IN 1 TRANSFORMER RS485 2 CONTROLLER amp HOLDER CLIP 7 COIL SENSOR CABINET AIR EVAP COIL CABINET SENSOR 337 60071 02 337 60069 02 GREEN SHRINK TUBE 16 IV CONTROL ARCHITECTURE IV d G SERIES REFRIGERATOR amp FREEZER VERTICAL CONTROLLER IV CONTROL ARCHITECTURE IV e R SERIES HEATED CABINET VERTICAL CONTROLLER ju F LED C LED RED LED N DISPLAY DOWN ARROW UP ARROW BUTTON BUTTON SET BUTTON ALARM CANCEL BUTTON RED ALARM LIGHT DOOR OPEN a sYMBOL HOT FOOD IRDA INFRA RED NOTES IRDA not included on equipment DATA AQUISITION manufactured with MIT II control version See parts assembly on pages 17 18 HOT FOOD CABINET STAR
7. CUS CUS ENG ENG ENG ENG ENG ENG ENG n a Unit of Measure KBaud On Off Degree Degree Degree Degree Degree Degree Degree Degree Degree ForC Minute Minute Minute Electric Gas Off Hours Minute Degree Minute Minute Degree Minute Start Stop On Off Minute Degree On Off Minute Second Second On Off HINIS YINID On Off Time Off Time Off Time Off Time Off Minute Minute Degree Degree Degree Volts On Off On Off On Off On Off CONTROL PARAMETERS VIII c G SERIES PARAMETER SETTINGS II Control Version Control Freezer Models Refrigerator Models Parameter GF1 GF2 GF4 GR1 GR2 ADR 2 2 2 2 2 2 2 BAU 96 9 6 9 6 9 6 9 6 9 6 9 6 NAF ON ON ON ON ON ON ON SPH 5 2 0 1 0 1 32 38 1 39 2 39 2 SPL 10 4 4 26 1 34 37 37 SHL 8 3 1 3 1 30 2 36 39 2 39 2 SHH 5 2 01 0 1 34 40 40 40 SLL 13 6 2 6 2 26 1 32 34 34 SLH 10 4 4 28 34 37 37 RO 0 0 0 0 0 0 0 HI 01 5 5 35 2 41 41 41 LO 18 4 10 10 20 30 2 302 30 2 SCL F F F F F F F HAD na n a LAD na n a n a n a n a n a AC 3 3 3 3 3 3 3 DEF ELE ELE ELE ELE OFF ELE OFF IBD 40 40 4 0 4 0 1 0 2 0 1 0 DDC 20 20 20 20 10 20 10 CDE 75 75 75 75 451 70 45 1 DDE 2 2 2 2 2 2 2 BDD 1 1 1 1 0 0 0 BSD 32 32 32 32 32 32 32 ODD 10 10 10 10 10 10 10 SD Starts a new defrost cycle at any time or stops a current defrost cycle CFA
8. OFF amp A Series only The minium amount of time in minutes that the compressor must be running before generating a clogged filter alarm The discharge line temperature that will trigger a clogged filter alarm Allows the customer to turn the door open alarm ON OFF in units equipped with he appropriate hardware The time in minutes that a door must be open before triggering a door open alarm 32 APD ATD AAS CL DAY DS DL1 DL2 DL3 DL4 DCF CON COF EL DL CB PLn RCO RdF RFA RDH Pro CEP REF Vill CONTROL PARAMETERS VIII a PARAMETER DESCRIPTIONS continued The amount of time in seconds that a visual alarm text will be displayed Alarm temperature delay Allows the customer to set the type of audible alarm style either Blast OFF or Continuous Allows the customer to set the time of day Allows the customer to set the date Sets daylight savings time On or OFF Selects the time to start a defrost lockout Selects the time to start a defrost lockout Selects the time to start a defrost lockout Selects the time to start a defrost lockout Allows the customer to set the percentage of time that the door perimeter heaters will operate to contro surface condensation The amount of time the compressor will run in the event of a cabinet air sensor failure The amount of time in minutes that the compressor will be OFF in the event of a cabinet air sen
9. 0072 00 CABINET SENSOR P N 337 60069 02 P N 337 60070 00 GREEN SHRINK TUBE 3 Component can be ordered separately 14 IV CONTROL ARCHITECTURE IV c UC amp UL UNDERCOUNTER HORIZONTAL CONTROLLER Parts assembly for MIT control version only CABINET SENSOR 337 60069 02 COIL SENSOR 337 60071 02 DISCHARGE SENSOR 337 60072 00 TO TRANSFORMER not included for MIT II versions HOLDER CLIP 337 60038 00 set of two CONTROL CABLE 333 60228 00 RELAY BOX 337 60172 02 337 60070 00 ADAPTER HARNESS HT 333 60240 00 LT 333 60225 00 CONTROL HEAD UC UL 337 60321 00 UNUSED EVAP BLOWER RELAY power line in 1 TO COMPRESSOR P d amp DEFROST RELAY power line in 2 MIT CONTROL TROUBLE SHOOTING DIAGRAM NOTE Remove the 4 screws one All pins in this connection should in each corner amp remove not read more than 20 VAC the relay box cover to expose pin connections amp transformer with voltage setting jumper Connector Pin No Color Signal 1 Gray Blower 2 Orange Door Heater 3 Green Alarm From Controller bi Revision Level 4 Black Retum From Hom 5 6 numbers ind 7 White Purple RS485 vary according to 282 as Bes Black Soe model type HD IET Bs te J2 VAG 2252225 52 10 Blue Compressor 11 Purple Defrost
10. 6 2 2 22 8 SHH 10 10 0 1 0 1 5 2 SLL 20 2 20 2 6 2 6 2 13 SLH 17 15 4 4 4 10 RO 0 0 0 0 0 HI 5 2 5 2 5 5 0 1 LO 25 6 25 6 10 10 17 8 SCL F F F F F HAD 15 15 15 15 15 LAD 2 2 2 2 2 AC 3 3 3 3 3 DEF ELE ELE ELE ELE ELE IBD 40 40 4 0 4 0 4 0 DDC 30 20 20 20 20 CDE 55 75 75 70 70 DDE 5 2 2 2 2 BDD 1 1 1 1 1 BSD 10 32 32 32 32 ODD 10 10 10 10 10 sD Starts a new defrost cycle at any time or stops a current defrost cycle CFA ON OFF OFF ON ON CCR 20 20 20 20 20 CDL 220 1 220 1 220 1 220 1 220 1 DOA ON ON ON ON ON DAD 15 15 15 15 15 APD 2 2 2 2 2 ATD 10 10 10 10 10 AAS OFF OFF OFF OFF OFF CL Set the hours and minutes in military time DAY Set the year month day of the month and day of the week DS ON ON ON ON ON DL1 OFF OFF OFF OFF OFF DL2 OFF OFF OFF OFF OFF DL3 OFF OFF OFF OFF OFF DL4 OFF OFF OFF OFF OFF DCF 100 100 100 100 100 CON 19 19 19 19 19 COF 7 7 7 7 7 EL Will display evaporator coil temp in real time every time an arrow is pressed DL Will display discharge line temp in real time every time an arrow is pressed CB Will display cabinet air temp in real time every time an arrow is pressed PLn Will display power line voltage in real time every time an arrow is pressed RCO Turns ON OFF the compressor relay for 10 seconds or until an arrow is pressed RdF Turns ON OFF the defrost relay for 10 seconds or until an arrow is pressed RFA Turns ON OFF the blower relay for 10 s
11. 85 CONTROLLER amp HOLDER CLIP CABINET SENSOR RELAY CABINET AIR 337 60069 02 N 337 60070 00 GREEN SHRINK TUBE 19 IV CONTROL ARCHITECTURE IV e R SERIES HEATED CABINET VERTICAL CONTROLLER Parts assembly for MIT control versions only CABINET SENSOR 337 60069 02 UNUSED UNUSED TO TRANSFORMER not included for MIT II versions HOLDER CLIP 337 60038 00 CONTROL CABLE set of two 333 60228 00 RELAY BOX 337 60171 02 337 60070 00 f ADAPTER HARNESS 333 60225 00 CONTROL HEAD HF 337 60320 00 TO DOOR RELAY UNUSED TO HEATERS d MIT CONTROL TROUBLE SHOOTING DIAGRAM NOTE Remove the 4 screws one All pins in this connection should in each corner amp remove not read more than 20 VAC the relay box cover to expose pin connections amp eem setting jumper MIT II of 8 hel SES A2 version only Connector Pin No Color Signal Gray Blower Orange Door Heater lt 3 Green Alarm From Controller LA Revision Level 4 Black Return To Horn 5 iit 5 EL 00 12200 7 White Purple RS485 Part numbers may Box i vary according to 3 E i ad i Wk VAC model type shBsh Be Sa Bic 10 Blue Compressor 11 Purple Defrost DE 12 Yellow Door Open Signal PIN connections may Date code will be listed 192 Power fo H
12. ON ON ON ON ON DL1 OFF OFF OFF OFF OFF OFF OFF OFF DL2 OFF OFF OFF OFF OFF OFF OFF OFF DL3 OFF OFF OFF OFF OFF OFF OFF OFF DL4 OFF OFF OFF OFF OFF OFF OFF OFF DCF 100 100 100 100 100 100 100 100 CON 11 11 11 11 11 11 11 11 10 10 10 10 10 10 10 10 EL Will display evaporator coil temp in real time every time an arrow is pressed DL Will display discharge line temp in real time every time an arrow is pressed CB Will display cabinet air temp in real time every time an arrow is pressed PLn Will display power line voltage in real time every time an arrow is pressed RCO Turns ON OFF the compressor relay for 10 seconds or until an arrow is pressed RdF Turns ON OFF the defrost relay for 10 seconds or until an arrow is pressed RFA Turns ON OFF the blower relay for 10 seconds or until an arrow is pressed RDH Turns ON OFF the door heater triac for 10 seconds or until an arrow is pressed PRO Set the controller in receiving mode for programming CEP Clear all controller memories and reloads the factory default parameters REF Firmware revision in the format X9 9 X version 9 major revision 9 minor revision MIT II control version only 36 CONTROL PARAMETERS VIII e R SERIES PARAMETER SETTINGS MIT II Control Version Control Freezer Models Parameter RF1 RF2 RF3 RF4 RF5 ADR 2 2 2 2 2 BAU 96 9 6 9 6 9 6 9 6 NAF ON ON ON ON ON SPH 15 4 10 0 1 0 1 5 2 SPL 20 2 15 4 4 4 10 SHL 15 4 13
13. OST CYCLE G Series The Display Step 1 Step 2 Step 3 Step 4 Step 5 Step 6 Step 7 Step 8 Will Read Press Display will read CUS uS Press Display will read 000 with the left digit flashing Press IS Display will read 000 with the center digit flashing Press v until the center digit changes to an A Display will read 0A0 with the right digit flashing Press A until the right digit changes to an 1 Display will read SPH GAH Press Press Step 14 Press 6 to scroll to the next parameter otherwise the controller will automatically revert back to normal operation after a delay of approximately 20 30 seconds NOTE Traulsen G Series refrigerator models also include an off cycle defrost feature which occurs once an hour This is indicated by the control display is time terminated and is generally of 3 10 minutes in duration The defrost cycle on Traulsen G Series freezer models can be either time or temperature terminated DEFROST ICON FREEZER 5 TROUBLESHOOTING Ill a CHECKING FOR DEFECTIVE SENSORS pad Step 1 Press Display will read CUS Display will read 000 with the left digit flashing Display will read 000 with the center digit flashing Step 4 Press v until the center digit changes to an A Display will read with the right digit flashing Step 6 Press 6 until the righ
14. On freezer models only this sensor should be centered approximately 2 two inches from the top horizontally through coil centered in coil On refrigerator models this sensor should be mounted on top of the coil Correct Sensor Location Cabinet Air Sensor The cabinet air sensor should be mounted inside the evaporator housing hump on the return air side of the evaporator coil Correct Discharge Sensor R amp A Series Only Sensor The discharge air sensor should be Location mounted on the hot gas side of the compressor Placement should be as close to the compressor as possible and must be placed prior to the beginning of the hot gas loop Please note that discharge sensors must be insulated 10 IV CONTROL ARCHITECTURE IV a R amp A SERIES REFRIGERATOR amp FREEZER VERTICAL CONTROLLER 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 FREEZER IRDA INFRA RED DATA AQUISITION NOTES IRDA not included on equipment manufactured with the MIT II control version See parts assembly on pages 12 13 11 IV CONTROL ARCHITECTURE HOLDER P N 337 60038 00 DEFROST COMPRESSOR H1 CONTROLLER RELAY POWER LINE IN 2 DOOR RELAY EVAP BLOWER RELAY POWER LINE IN 1 CABINET RH AMBIENT AIR AIR EVA 1 Set of two can be order
15. T 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 desired temperature maximum 180 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 constantly reading OFF This is an indication of a possible faulty cabinet sensor To remedy replace the sensor and reset 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 temperature 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 18 IV CONTROL ARCHITECTURE IV e R SERIES HEATED CABINET VERTICAL CONTROLLER Parts assembly for H1 control versions only 1 Set of two can be ordered separately 2 Requires unit model number and serial number to place order HOLDER CLIP SS 377 60038 00 AN CABINET HEATER TRANSFORMER RS4
16. TION 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 page 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 24 VI b HIGH TEMPERATURE ALARM H Door s open YES L longerthan5 gt Close minutes door s Excessive amount of hot product placed in unit YES Reduce volume of hot product Is evaporator YES coil frozen Defrost evaporator coil Check compressor IS NOT OK gt for low refrigerant J IS OK Add refrigerant Check that sensor IS NOT OK probe s properly connected Connect probe s J YES Replace failed sensor 1 See procedure on page 9 25 VI c LOW TEMPERATURE ALARM Is temperature setting for unit too low Increase operating tem
17. controllers NOTE Erroneous readings may be the result of a faulty sensing circuit open or shorted in the Controller on H1 control version only 1 DL is not included on G Series controllers 2 AA is not available with MIT version controllers 62 TROUBLESHOOTING Ill 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 your are servicing 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 to obtain this please contact the factory referencing the serial numberof the unit involved Using a volt ohm meter VOM with the power OFF check the resistance across the black to blue wires of the Controller connector If 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 or Solid State Relay SSR p n 337 60360 01 MIT II Only 1 Gain access to the controller compressor relay see REMOVAL INSTRUCTIONS within this service manual for the specific type of controller your are servicing Locate the externa
18. e relay junction controller are exposed box shown tumed 90 PE degrees 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 prong on each holder clip He HOLDER Slowly slide each holder clip off the controller Set clips aside NOTE Be sure ALL components HOLDER 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 IN THIS DIRECTION 22 V REMOVAL INSTALLATION V a ALL HORIZONTAL CONTROLLERS To remove INTELA TRAUL p n s 337 60096 00 and 337 60097 00 Horizontal Controller from the unit in which it is installed proceed as follows WARNING DISCONNECT ALL POWER BEFORE PROCEEDING 4 PHILLIPS HEAD SCREWS S 4 BLACK PLASTIC LOUVER ASSEMBLY PLUGS MOUNTING BRACKET 2 PHILLIPS MIDDLE PRONG OF HOLDER CLIP one on each side of the controller MOUNTING GUIDE SLOTS BRACKET one on each side of the controller 2 PHILLIPS HEAD SCREWS MIDDLE PRONG OF HOLDER CLIP one on each side of the controller 23 1 Check to make sure that the power cable is disconnected from the wall 2 Remove the four 4 black plugs that are located in each corner of the power pack louver assembly Set pl
19. econds or until an arrow is pressed RDH Turns ON OFF the door heater triac for 10 seconds or until an arrow is pressed PRO Set the controller in receiving mode for programming CEP Clear all controller memories and reloads the factory default parameters REF Firmware revision in the format X9 9 X version 9 major revision 9 minor revision 37 VIII CONTROL PARAMETERS VIII f UNDERCOUNTER PARAMETER SETTINGS MIT II Control Version Control Parameter UF1 UF2 UP1 UP2 ADR 2 2 2 2 BAU 9 6 9 6 9 6 9 6 NAF ON ON ON ON SPH 0 1 38 1 38 1 38 1 SPL 4 33 8 33 8 33 8 SHL 0 31 36 36 36 SHH 0 1 40 40 40 SLL 6 2 32 32 32 SLH 4 34 34 34 RO 0 0 0 0 HI 5 4 41 41 Lo 10 302 30 2 302 SCL F F F F HAD 15 15 15 15 LAD 2 2 2 2 AC 3 3 3 3 DEF GAS GAS OFF OFF IBD 40 4 0 1 0 1 0 DDC 20 20 10 10 CDE 75 75 451 45 1 DDE 5 2 2 2 BDD 1 1 0 0 BSD 10 32 32 32 ODD 10 10 10 10 SD Starts a new defrost cycle at any time or stops a current defrost cycle CFA OFF OFF NA OFF CCR 20 20 NA 20 CDL 220 1 220 1 220 1 DOA OFF OFF NA OFF DAD 15 15 15 APD 2 2 2 2 ATD 10 10 10 AAS OFF OFF NA OFF CL Set the hours and minutes in military time DAY Set the year month day of the month and day of the week DS ON ON ON ON DL1 OFF OFF OFF OFF DL2 OFF OFF OFF OFF DL3 OFF OFF OFF OFF DL4 OFF OFF OFF OFF DCF 100 100 100 100 CON 19 19 11 11 7 7 10 10 EL Will display evaporator coil temp i
20. ed separately COIL HOLDER CLIP 2 Requires unit model number and serial P N 337 60038 00 number to place order BLUESHRINK TUBE YELLOW SHRINK TUBE COIL SENSOR DISCHARGE SENSOR P N 337 60071 02 P N 337 60072 00 CABINET SENSOR P N 337 60069 02 GREEN SHRINK TUBE RH SENSOR P N 337 60080 00 control versions H only 3 Component can be ordered separately 12 IV CONTROL ARCHITECTURE IV b R amp A SERIES REFRIGERATOR amp FREEZER VERTICAL CONTROLLER Parts assembly for H1 thru MIT control versions only CABINET SENSOR 337 60069 02 COIL SENSOR 337 60071 02 DISCHARGE SENSOR 337 60072 00 TO TRANSFORMER not included for MIT II versions HOLDER CLIP 337 60038 00 set of two CONTROL CABLE 333 60250 00 RELAY BOX 337 60162 02 337 60070 00 ADAPTER HARNESS 333 60249 00 CONTROL HEAD R A 337 60318 00 TO DOOR RELAY TO SSR COIL CIRCUIT MIT ONLY 337 60360 01 see below 337 0031900 de0rSwitch amp line neutral HF337 60320 00 DOOR HEATERS 337 60321 00 evap blower relay 6 power line in 1 WA TO COMPRESSOR amp DEFROST RELAY power line in 2 MIT CONTROL TROUBLE SHOOTING DIAGRAM NOTE Remove the 4 screws one All pins in this connection should in each corner amp remove not read more than 20 VAC the relay box cover to expose pin connections amp transformer with voltage
21. ely 20 30 seconds between button pushes If you take longer than 30 seconds the controller will revert back to displaying the cabinet temperature If you enter the wrong security code the controller will revert back to displaying the cabinet temperature You can exit the parameters at any time by waiting 20 30 seconds for the control to return to normal operation 2 I BASIC SERVICE PROCEDURES Il a ADJUSTING THE TEMPERATURE The Display Will Read Step 1 Press IS Display will read CUS rug Step 2 Press Display will read 000 with the left digit flashing Step 3 Press IS Display will read 000 with the center digit flashing Step 4 Press v until the center digit changes to an A Display will read 0A0 with the right digit flashing Step 6 Press a until the right digit changes to an 1 Step 7 Press IS Display will read SPH GAH Step 8 Press again Step 9 Press 6 o to adjust temperature to desired setting Step 5 Press NOTE SPH should be set at 38 to 40 F for refrigerators and 0 F for freezers Step 11 Press v until display reads SPL Step 12 Press 5 Step 13 Press le or to adjust temperature to desired setting NOTE SPL should be set at 34 F for refrigerators and 4 F for freezers Step 10 When display reads the desired temperature press Step 14 Press Step 15 Press to exit R amp A Series only On G Series models the controller will aut
22. es Page 24 b Hi Temp Alarm all HT RI amp LT IF models Page 25 Lo Temp Alarm all HT RI amp LT IF models Page 26 d Door Open Alarm all HT RI LT IF HF IH models Page 27 Power Loss Alarm all HT RI LT IF HF IH models Page 28 f System Leak Alarm all HT RI amp LT IF models Page 29 g Condenserclean Alarm all HT RI amp LT IF models Page 30 VII Accessing The Engineering Level Page 31 VIII Control Parameters a Parameter Descriptions Page 32 33 b Parameter Access amp Units Of Measurement Page 34 C G Series Parameter Settings Page 35 d R Series Parameter Settings Refrigerator Models Page 36 e R Series Parameter Settings Freezer Models Page 37 f Undercounter Parameter Settings Page 38 1 1 GENERAL INFORMATION 1 a HOW TO USE THIS MANUAL Traulsen 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 Refrigerator 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 controlle
23. iggering a High Temp alarm The lowest temperature the cabinet air temperature is allowed to reach before triggering a Low Temp alarm Sets the temperature display scale fahrenheit or celsius Time in minutes that the controller delays triggering the High Temp alarm at any start up or at the end of a defrost cycle Time in minutes that the controller delays triggering the Low Temp alarm if cabinet air temperature equal or below SPL setting The amount of time in minutes that the compressor must be off between cycles Defines the type of heat used to defrost the coil Electric Hot Gas None or Off Cycle The amount of time in hours between the end of the drip time amp start of the next defrost cycle The maximum amount of time in minutes that the heat will be on during a defrost cycle The temperature of the evaporator coil that indicates the end of a defrost heat cycle The amount of time in minutes between the defrost heat being turned off and the compressor turning on The delay time in minutes between the end of the drip time and and before the evaporator blower turns on The temperature of the evaporator coil that triggers the evaporator blower to turn on after drip time ends The maximum amount of time in minutes that the display will read the last temperature recorded before entering the defrost cycle Allows a techinician to start or stop a defrost cycle Alows the customer to turn the clogged filter ON
24. int Low Set Point High Low Set Point High High Set Point Low Low Set Point Low High Room Offset Upper Temperature Limit Lower Temperature Limit Temperature Scale High Temperature Alarm Delay Low Temperature Alarm Delay Anticylcing Defrost Type Intervals Between Defrosts Maximum Defrost Duration Coil Temperature At End of Defrost Cycle Drip Time At End of Defrost Cycle Blower Delay At Drip Time BSD After Defrost End Display Hold After Defrost Start Stop Defrost Clogged Filter Alarm Clogged Filter Compressor Run Time Clogged Filter Alarm Temperature Door Open Alarm Door Display Alarm Delay Alarm Pause Delay Alarm Temperature Delay Audible Alarm Style Set The Clock Time Set The Clock Date Daylight Savings Defrost Lockout 1 Defrost Lockout 2 Defrost Lockout 3 Defrost Lockout 4 Dewpoint Correction Factor Compressor Default On Time Compressor Off Time Evaporator Coil Temperature Discharge Line Temperature Cabinet Air Temperature Display Line Voltage Cycle Compressor Relay Cycle Defrost Relay Cycle Blower Fan Relay Cycle Door Heater Relay Go To Bootloader For Programming Clear EEPROM amp Load Defaults Software Version Revision Step MIT II control version only 34 Access ENG ENG ENG CUS CUS ENG ENG ENG ENG CUS ENG ENG CUS ENG ENG ENG ENG ENG ENG ENG ENG ENG ENG ENG CUS n a nla nla ENG ENG ENG ENG CUS CUS CUS CUS CUS CUS CUS CUS CUS ENG ENG CUS
25. ion in the format X9 9 X version 9 major revision 9 minor revision MIT II control version only 35 VIII CONTROL PARAMETERS Vill d R SERIES PARAMETER SETTINGS MIT II Control Version Control Refrigerator Models Parameter RA1 RA2 RA4 RAS RA6 RA7 ADR 2 2 2 2 2 2 2 2 BAU 96 9 6 9 6 9 6 9 6 9 6 9 6 9 6 NAF ON ON ON ON ON ON ON ON SPH 39 2 39 2 392 39 2 381 381 392 39 2 SPL 37 37 37 37 34 34 37 37 SHL 39 2 39 2 39 2 39 2 36 36 39 2 39 2 SHH 40 40 40 40 40 40 40 40 SLL 34 34 34 34 32 32 34 34 SLH 37 37 37 37 34 34 37 37 RO 0 0 0 0 0 0 0 0 HI 41 41 41 41 41 41 41 41 LO 30 2 30 2 30 2 30 2 30 2 302 30 2 302 SCL F F F F F F HAD 15 15 15 15 15 15 15 15 LAD 2 2 2 2 2 2 2 2 AC 3 3 3 3 3 3 3 3 DEF OFF OFF OFF OFF OFF OFF ELE ELE IBD 10 1 0 1 0 1 0 1 0 1 0 2 0 2 0 DDC 10 10 10 10 10 10 20 20 CDE 45 1 45 1 45 1 45 1 45 1 451 70 70 DDE 2 2 2 2 2 2 2 2 BDD 0 0 0 0 0 0 0 0 BSD 32 32 32 32 32 32 32 32 ODD 10 10 10 10 10 10 10 10 SD Starts a new defrost cycle at any time or stops a current defrost cycle CFA OFF ON OFF ON ON ON OFF ON CCR 20 20 20 20 20 20 20 20 CDL 220 1 220 1 220 1 220 1 220 1 220 1 220 1 220 1 DOA ON ON ON ON ON ON ON ON DAD 15 15 15 15 15 15 15 15 APD 2 2 2 2 2 2 2 2 ATD 10 10 10 10 10 10 10 10 AAS OFF OFF OFF OFF OFF OFF OFF OFF CL Set the hours and minutes in military time DAY Set the year month day of the month and day of the week DS ON ON ON
26. l slave relay and unplug the harness connectors 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 and the slave relay should be replaced For the SSR remove the black and blue wires from terminals 3 amp 4 Using a volt ohm meter and with the power OFF measure the resistance across the terminals A completed circuit indicates that the circuit is closed and that the relay should be replaced A reading of 25 mQ to 35 mQ is considered normal for an open circuit in the SSR Checking For A Failed Door Light Relay R amp A Series models only 1 Gain access to Controller door relay see REMOVAL INSTRUCTIONS within this service manual for the specific type of controller your are servicing Remove the wire from the door relay coil Using a volt ohm meter VOM check across the relay contacts If an open across the contacts is not indicated replace the door relay NOTE Equipment manufactured with the MIT II controller version do not include a Door Light relay 4 Physically check the switch for evidence of water If switch has water in it proceed with replacing the switch 27 TROUBLESHOOTING c CHECKING FOR OTHER FAILED COMPONENTS Checking For A Failed Door Switch 1 Remove the door s from the unit involved 2 Locate the door switch which is located behind the top door hinge s
27. n real time every time an arrow is pressed DL Will display discharge line temp in real time every time an arrow is pressed CB Will display cabinet air temp in real time every time an arrow is pressed PLn Will display power line voltage in real time every time an arrow is pressed RCO Turns ON OFF the compressor relay for 10 seconds or until an arrow is pressed RdF Turns ON OFF the defrost relay for 10 seconds or until an arrow is pressed RFA Turns ON OFF the blower relay for 10 seconds or until an arrow is pressed RDH Turns ON OFF the door heater triac for 10 seconds or until an arrow is pressed PRO Set the controller in receiving mode for programming CEP Clear all controller memories and reloads the factory default parameters REF Firmware revision in the format X9 9 X version 9 major revision 9 minor revision 38 HOURS OF OPERATION Monday thru Friday 7 30 am 4 30 pm CST Traulsen 4401 Blue Mound Road Fort Worth TX 76106 Phone 800 825 8220 Fax Svce 817 740 6757 Quality Refrigeration Website www traulsen com
28. o an 9 Step 5 Press Display will read 900 with the center digit flashing Step 6 Press v until the center digit changes to an 9 Step 7 Press Display will read 990 with the right digit flashing Step 8 Press v until the right digit changes to an E ag Step 9 The display will read 99E press Al oo Co o rajon Step 10 Press ol The display will now read FOC See Note NOTE R amp A Series Only for G Series models press v for the control to display FOC 31 VII CONTROL PARAMETERS Vill a PARAMETER DESCRIPTIONS FOC ADR BAU NAF SPH SPL SHL SHH SLL SLH RO HI LO SCL HAD LAD AC DEF IBD DDC CDE DDE BDD BSD ODD SD CFA CCR CDL DOA DAD 3 digit code which identifies the hex file loaded at the factory Device address for NAFEM networks Communications rate when connected into a NAFEM network Allow the control to communicate with a NAFEM network High value of desired cabinet temperature range Low value of desired cabinet temperature range Lowest temperature of allowed range for setting of SPH Highest temperature of allowed range for setting of SPH Lowest temperature of allowed range for setting of SPL Highest temperature of allowed range for setting of SPL Difference in degrees between displayed amp measured temperature The highest temperature the cabinet air temperature is allowed to reach before tr
29. obe resistance shoud be 32 7K Ohms 10 If resistance is not within this range repalce the sensor 8 TROUBLESHOOTING d CHECKING FOR ICED EVAPORATOR COIL With evaporator clear of ice is there proper air flow Check evaporator blower motor for NOT OK Replace evaporator proper operation blower motor ves Check DEF settings in controller parameters NOT OK Go to pages 33 36 Reset control parameters Evap r or ducting restriction Remove restriction NOT OK Replace failed sensor Does compressor shut off in defrost Will unit enter manual defrost cycle YES compressor relay or module OK cycle unit at set Check defrost heater temps Will control YES Replace controller see note below i NOT OK Problem with system NOTE See the corresponding pages to remove and replace the controller R amp A Series Refrigerator amp Freezer Pages 21 22 G Series Refrigerator amp Freezer Pages 21 22 Replace failed cabinet sensor Undercounter Refrigerator amp Freezer Page 23 R amp A Series Hot Food Cabinets Pages 21 22 9 TROUBLESHOOTING e PROPER SENSOR PLACEMENT Coil Sensor Corset The coil sensor should be inserted into Location the return air side of the evaporator coil
30. om not be available for as the week year 01 52 Voltage should 14 all model types 2001 2100 when the not be more than 15 control is manufactured 5DC when 16 Pink 5485 measured to 17 Red 12 VDC to Controller ground pin 8 48 12 20 V REMOVAL INSTALLATION V a ALL VERTICAL CONTROLLERS To remove INTELA TRAUL p n s 337 60090 00 337 60091 00 and 337 60092 00 and G Series p n s 337 60093 00 337 60094 00 and 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 1 Atfront of unit remove two 2 slot head thumb screws 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 WARNING DISCONNECT ALL POWER BEFORE PROCEEDING At the top of the junction box remove three 3 Phillips head EE screws Set screws aside Locate one 1 Phillips head screw at bottom of junction box and remove Set screw aside 1 PHILLIPS HEAD SCREW REAR VIEW OF UNIT Carefully slide junction box away from front of unit until all JUNCTION wiring and connections to th
31. omatically revert back to normal temperature display operation after a delay of approximately 20 30 seconds 3 Il BASIC SERVICE PROCEDURES Il b STARTING A MANUAL DEFROST CYCLE R amp A Series Lied Step 1 Press Display will read CUS Fug Step 2 Press Display will read 000 with the left digit flashing Step 3 Press Display will read 000 with the center digit flashing Step 4 Press until the center digit changes to an A Display will read 0A0 with the right digit flashing Step 6 Press 6 until the right digit changes to an 1 Display will read SPH SPH Step 8 Press v until the control reads Sd Start Manual Defrost Display will read n NO al Step 10 Press O Display will read 4 YES Step 11 Press Controller will display SPH for 30 seconds and SPH Step 5 Press Step 7 Press Step 9 Press then DEF will appear NOTE The controller will automatically revert back to normal operation after a delay of approximately 20 30 seconds NOTE Traulsen amp A Series refrigerator models also include off d cycle defrost feature which occurs once hour This is Y indicated by the control display is time or temperature terminated and generally is of 3 10 minutes in duration INTELA TRAUL veja FREEZER DEFROST ICON E Il BASIC SERVICE PROCEDURES Il c STARTING A MANUAL DEFR
32. perature YES Is there food product in the YES Add unit product to the unit NO Check for failed compressor relay controller or slave relay Check that sensor IS NOT OK probe s properly Connect connected probe s Replace failed sensor 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 26 VI d DOOR OPEN ALARM longer than 5 minutes door s 4 Checkfor failed door IS NOT OK ight relay Door s open Yi a dar failed relay J IS OK Is there water in the door Switch IS NOT OK Replace door Switch door switch 17 H1 and MIT 1 control versions only 2 See procedure on page 7 27 VI e POWER LOSS ALARM ME LELO plugged in ves Has unit suffered a loss of power due to bad weather Is unit receiving low voltage input will return when service is restored YES Contact local utility provider Check for failed IS NOT OK Replace controller transformer controller transformer 1 See procedure on page 8 28 discharge temp tise 45 F within 5 min of a cycle start VI f SYSTEM LEAK ALARM No Check compressor 15 NOT OK for low refrigerant
33. rs are covered in this manual should you encounter a condition not addressed or require a wiring diagram please contact Traulsen 4401 Blue Mound Road Fort Worth TX 76106 Attn Service Department Phone 800 825 8220 or 817 625 9671 Fax 817 740 6757 All service communication must include Model Number amp Serial Number Of Unit detailed explanation of the problem 1 b ABOUT INTELA TRAUL The Traulsen INTELA TRAUL and G Series microprocessor controls are microprocessor based systems which replace several electromechanical components typically built into refrigeration products such as time clocks thermometers 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 R amp A Series controls also allow the operator to cycle the door perimeter heaters ON OFF as needed 1 c OPERATING THE CONTROLLER When operating the controller it is important to note that you only have approximat
34. sor failure Displays the evaporator temperature at the time press set or the up arrow button to display this feature Displays the discharge line temperature at the time press set or the up arrow button to display this feature When activated by pressing the set or up arrow buttons will display the cabinet air temperature at the time the button is pressed When activated will display the approximate line voltage Will energize the compressor relay for 10 seconds when activated Will energize the heater relay for 10 seconds when activated Will energize the blower relay for 10 seconds when activated Will energize the door heater relay for 10 seconds when activated Parameter used only when reflashing the program memory When activated will return all of the parameters to the initial factory settings Displays the revision level of the software loaded into memory 33 Control VIII CONTROL PARAMETERS Vill b PARAMETER ACCCESS amp UNITS OF MEASUREMENT H1 MIT I amp MIT II CONTROL VERSIONS ONLY Parameter Description ADR BAU NAF SPH SPL SHL SHH SLL SLH RO HI LO SCL HAD LAD AC DEF IBD DDC CDE DDE BDD BSD ODD SD CFA CCR CDL DOA DAD APD ATD AAS CL DAY DS DL1 DL2 DL3 DL4 DCF CON COF EL DL CB PLn RCO RdF RFA RDH PRO CEP REF Device Address Comm Baud Rate in K NAFEM Communications Enable Temperature Set Point High Temperature Set Po
35. t digit changes to an 1 Step 7 Pres If the display now reads 40 check for loose connection on the EVAPORATOR sensor If the display has a very high reading such as 266 replace the evaporator sensor Step 2 Press Step 3 Press Step 5 Press Step 8 Press 6 until display reads EL Pres NOTE Erroneous readings may be the result of a faulty sensing circuit open or shorted in the Controller In the event that 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 motor or any other condition around the unit which could cause a high temperature such as a steam table or a crossdraft Otherwise proceed with replacing the DISCHARGE LINE sensor Step 9 Press le until the display reads DL Press NOTE Erroneous readings may be the result of a faulty sensing circuit open or shorted in the Controller Step 10 Press ey until the display reads AA Press Display should read the approximate ambient air temperature behind the louver panel If the display 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 If display reads 40 or 266 the cabinet sensor is defective and requires replacement NOTE Ambient Air Sensor not included on MIT version
36. ugs aside 3 Remove the four 4 Phillips head screws holding the louver assembly in place Set screws and louver assembly aside 4 Remove the two 2 Phillips head screws thathold the Controller and the bracket assembly to the condenser fan assembly Set screws aside 5 Locate all nine 9 Controller connections then carefully disconnect each one 6 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 TO RE INSTALL CONTROLLER REVERSE THE PRECEEDING PROCEDURE VI PROBLEM DIAGNOSIS VI a 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 mal function 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 SOLU
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