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INTELA-TRAUL

Quality Refrigeration

MASTER SERVICE MANUAL

Form Number TR35705, revised 10/04

Traulsen

4401 Blue Mound Road - Fort Worth, Texas 76106

Phone: (800) 825-8220 or (817) 625-9671

Fax-Service (817) 740-6757

For All Full Size Undercounter, G-Series and

R&A Series Refrigerator, Freezer, Dual-Temp

and Hot Food Unit Controllers

Содержание INTELA-TRAUL

Страница 1: ...rm Number TR35705 revised 10 04 Traulsen 4401 Blue Mound Road Fort Worth Texas 76106 Phone 800 825 8220 or 817 625 9671 Fax Service 817 740 6757 For All Full Size Undercounter G Series and R A Series Refrigerator Freezer Dual Temp and Hot Food Unit Controllers ...

Страница 2: ...r Vertical Controllers Page 16 17 d R 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 Trees Page 24 b Hi Temp Alarm all HT RI LT IF models Page 25 c Lo Temp Alarm all HT RI LT IF models Page 26 d Door Open Alarm all HT RI LT IF HF IH models Pa...

Страница 3: ...trols 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 A Series also includes a disch...

Страница 4: ...tting NOTE SPH should be set at 38 to 40 F for refrigerators and 0 F for freezers Step 10 When display reads the desired temperature press Step 11 Press until display reads SPL Step 12 Press Step 13 Press or to adjust temperature to desired setting NOTE SPL should be set at 34 F for refrigerators and 4 F for freezers Step 14 Press Step 15 Press to exit R A Series only On G Series models the contro...

Страница 5: ...1 Step 7 Press Display will read SPH Step 8 Press until the control reads Sd Start Manual Defrost Step 9 Press Display will read n NO Step 10 Press or Display will read 4 YES Step 11 Press Controller will display SPH for 30 seconds and then DEF will appear SET SET SET SET SET SET NOTE Traulsen R A Series refrigerator models also include an off cycle defrost feature which occurs once an hour This i...

Страница 6: ...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 Step 5 Press Display will read 0A0 with the right digit flashing Step 6 Press until the right digit changes to an 1 Step 7 Press Display will read SPH Step 8 Press until the control reads Sd Start Manual Defrost Step 9 Press Display will read n NO Step 10 Pr...

Страница 7: ... 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 NOTE Erroneous readings may be the result of a faulty sensing circuit open or shorted in the Controller Step 10 Press until the display reads AA2 Press Display shou...

Страница 8: ...is service manual for the specific type of controller your are servicing 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 and the slave relay should be replaced 4 For the SSR remove the black and blue wires from terminals 3 ...

Страница 9: ... 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 ...

Страница 10: ...arameters NO NOT OK YES OK NOT OK Replace failed sensor NOT OK OK Will unit enter manual defrost cycle Does compressor shut off in defrost Check defrost heater YES Replace compressor relay or module NO YES Will control cycle unit at set temps OK YES Problem with ref n system Check cabinet sensor Go to pages 6 7 8 OK NOT OK 9 Replace failed cabinet sensor NOTE See the corresponding pages to remove ...

Страница 11: ...ounted on top of the coil Cabinet Air Sensor The cabinet air sensor should be mounted inside the evaporator housing hump on the return air side of the evaporator coil Discharge Sensor R A Series Only The discharge air 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 placed prior to the beginning of the hot gas loo...

Страница 12: ... 11 IV CONTROL ARCHITECTURE IV a R A SERIES REFRIGERATOR FREEZER VERTICAL CONTROLLER NOTES IRDA not included on equipment manufactured with the MIT II control version See parts assembly on pages 12 13 ...

Страница 13: ... ordered separately HOLDER CLIP1 P N 337 60038 00 HOLDER CLIP1 P N 337 60038 00 H1 CONTROLLER2 TRANSFORMER RS485 DOOR RELAY EVAP BLOWER RELAY POWER LINE IN 1 DEFROST COMPRESSOR RELAY POWER LINE IN 2 DOOR RELAY CABINET AIR HORN RH AMBIENT AIR EVAP COIL DISCHARGE LINE 1 Set of two can be ordered separately 2 Requires unit model number and serial number to place order BLUE SHRINK TUBE YELLOW SHRINK T...

Страница 14: ...COMPRESSOR DEFROST RELAY power line in 2 MIT CONTROL TROUBLE SHOOTING DIAGRAM Date code will be listed as the week year 01 52 2001 2100 when the control is manufactured PIN connections may not be available for all model types Part numbers may vary according to model type Remove the 4 screws one in each corner remove the relay box cover to expose pin connections transformer with voltage setting jum...

Страница 15: ...be ordered separately BLUE SHRINK TUBE YELLOW SHRINK TUBE GREEN SHRINK TUBE HOLDER CLIP1 P N 337 60038 00 HOLDER CLIP1 P N 337 60038 00 HORN DISCHARGE LINE EVAP COIL NOT USED NOT USED CABINET AIR CONTROLLER2 TRANSFORMER RS485 DOOR HEATER EVAP BLOWER RELAY POWER LINE IN 1 DEFROST COMPRESSOR RELAY POWER LINE IN 2 1 Set of two can be ordered separately 2 Requires unit model number and serial number t...

Страница 16: ...2 2001 MIT CONTROL TROUBLE SHOOTING DIAGRAM Date code will be listed as the week year 01 52 2001 2100 when the control is manufactured PIN connections may not be available for all model types Part numbers may vary according to model type Revision Level Remove the 4 screws one in each corner remove the relay box cover to expose pin connections transformer with voltage setting jumper NOTE All pins i...

Страница 17: ... 16 IV CONTROL ARCHITECTURE IV d G SERIES REFRIGERATOR FREEZER VERTICAL CONTROLLER ...

Страница 18: ... 17 IV CONTROL ARCHITECTURE IV d G SERIES REFRIGERATOR FREEZER VERTICAL CONTROLLER ...

Страница 19: ...EL 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 uni...

Страница 20: ...e ordered separately 2 Requires unit model number and serial number to place order 19 IV CONTROL ARCHITECTURE HORN 337 60070 001 IV e R SERIES HEATED CABINET VERTICAL CONTROLLER Parts assembly for H1 control versions only ...

Страница 21: ...sted as the week year 01 52 2001 2100 when the control is manufactured PIN connections may not be available for all model types Part numbers may vary according to model type Revision Level Remove the 4 screws one in each corner remove the relay box cover to expose pin connections transformer with voltage setting jumper MIT II version only NOTE All pins in this connection should not read more than ...

Страница 22: ... 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 21 1 At front of unit remove two 2 slot head thumb screws from bottom corners of louver assembly Set thumbscrews aside 2 Swing louver assembly up and away from front of unit until it stops 3 Remove two 2 Slot head thumb screws from top of louver assembly Set thumbscr...

Страница 23: ...mpress the rounded portion of the middle prong on each holder clip Slowly slide each holder clip off the controller Set clips aside 9 Slowly pull Controller through mounting hole and set aside WARNING DISCONNECT ALL POWER BEFORE PROCEEDING TO RE INSTALL CONTROLLER REVERSE THE PRECEEDING PROCEDURE NOTE Be sure ALL components have been disconnected from the Controller before performing the next step...

Страница 24: ...thold 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 WARNING DISCONNECT ALL POWER BEFORE PROCEEDING TO RE INSTALL CONTROLLER REVE...

Страница 25: ...her 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 t...

Страница 26: ...Close door s Excessive amount of hot product placed in unit YES NO Reduce volume of hot product Is evaporator coil frozen up 1 YES NO Defrost evaporator coil IS OK Check that sensor probe s properly connected YES IS NOT OK Add refrigerant IS NOT OK Connect probe s Replace failed sensor 1 See procedure on page 9 ...

Страница 27: ... food product in the unit YES NO Add product to the unit IS NOT OK Replace failed controller or slave relay IS OK Check that sensor probe s properly connected YES IS NOT OK Replace failed sensor Connect probe s 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 ...

Страница 28: ...open longer than 5 minutes 1 YES NO Close door s IS OK IS NOT OK Replace failed relay Check for mis wired door switch Is there water in the door switch YES NO Replace door switch IS NOT OK Replace door switch 1 H1 and MIT 1 control versions only 2 See procedure on page 7 ...

Страница 29: ...red a loss of power due to bad weather YES NO Full operation will return when service is restored Is unit receiving low voltage input YES NO Contact local utility provider Check for failed controller transformer 1 IS NOT OK Replace controller transformer 1 See procedure on page 8 ...

Страница 30: ... YES Add refrigerant Check compressor for low refrigerant IS OK Check discharge line sensor 1 Replace failed sensor IS NOT OK IS NOT OK Are sensor probes properly connected YES Check for disolocated sensor probe s YES NO Connect Probes Relocate probe s to proper position 1 See procedure on page 8 ...

Страница 31: ...d YES NO Properly conenct fan Check forfailed condenser fan IS NOT OK Replace fan Are there any obstructions at top or rear of unit YES NO Remove obstructions Is the room temperature too warm YES NO Lower the room temperature Is air flow restricted by any objects YES Move unit or objects for better air flow OK ...

Страница 32: ...ep 8 Press until the right digit changes to an E Step 9 The display will read 99E press Step 10 Press The display will now read FOC See Note NOTE R A Series Only for G Series models press for the control to display FOC SET The Display Will Read SET SET SET SET 31 VII ACCESSING THE ENGINEERING LEVEL VII a ACCESSING THE ENGINEERING LEVEL Not all control parameters can be adjusted at the customers le...

Страница 33: ...t be off between cycles DEF Defines the type of heat used to defrost the coil Electric Hot Gas None or Off Cycle IBD The amount of time in hours between the end of the drip time start of the next defrost cycle DDC The maximum amount of time in minutes that the heat will be on during a defrost cycle CDE The temperature of the evaporator coil that indicates the end of a defrost heat cycle DDE The am...

Страница 34: ... OFF in the event of a cabinet air sensor failure EL Displays the evaporator temperature at the time press set or the up arrow button to display this feature DL Displays the discharge line temperature at the time press set or the up arrow button to display this feature CB When activated by pressing the set or up arrow buttons will display the cabinet air temperature at the time the button is press...

Страница 35: ...After Defrost ENG Minute SD Start Stop Defrost CUS Start Stop CFA Clogged Filter Alarm n a On Off CCR Clogged Filter Compressor Run Time n a Minute CDL Clogged Filter Alarm Temperature n a Degree DOA Door Open Alarm ENG On Off DAD Door Display Alarm Delay ENG Minute APD Alarm Pause Delay ENG Second ATD Alarm Temperature Delay ENG Second AAS Audible Alarm Style CUS On Off CL Set The Clock Time CUS ...

Страница 36: ... a n a n a n a n a n a 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 ON DL1 OFF OFF OFF OFF OFF OFF OFF DL2 OFF 11 30amOFF OFF OFF OFF OFF DL3 OFF 5 30pm OFF OFF OFF OFF OFF DL4 OFF OFF OFF OFF OFF OFF OFF DCF n a n a n a n a n a 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 tem...

Страница 37: ...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 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...

Страница 38: ... 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...

Страница 39: ...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 COF 7 7 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 press...

Страница 40: ...Traulsen 4401 Blue Mound Road Fort Worth TX 76106 Phone 800 825 8220 Fax Svce 817 740 6757 Website www traulsen com HOURS OF OPERATION Monday thru Friday 7 30 am 4 30 pm CST Quality Refrigeration ...

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