Traulsen Page 2
Workshop Manuals
TABLE OF CONTENTS
The serial tag is a permanently afxed label on which is
recorded vital electrical and refrigeration data about your
Traulsen product, as well as the model and serial number.
This tag is located in the right interior compartment on
all standard TU Series Full-Size Undercounter models.
See Figure 1.
READING THE SERIAL TAG
• Serial = The permanent ID# of your Traulsen unit
• Model = The model # of your Traulsen unit
• Volts = Voltage
• Hz = Cycle
• PH = Phase
• Total Current = Maximum amp draw
• Minimum Circuit = Minimum circuit ampacity
• Lights = Light wattage
• Heaters = Heater amperage (Hot Food units only)
• Refrigerant = Refrigerant type used
• Design Pressure = High & low side operating
pressures and refrigerant charge
• Agency Labels = Designates agency listings
I. THE SERIAL TAG
-1-
V. CONDENSER FAN MOTOR OR BLADE Page 4
VI. CONDENSER COIL Page 5
VII. EVAPORATOR FAN Page 5
VIII. COMPRESSOR Page 6
IX. WIRING DIAGRAM Page 7
X. SERVICE PROCEDURES & ADJUSTMENTS
a-System Access Page 8
b-Sweat-On Piercing Valves Page 8
c-Refrigerant Leak Check Page 8
d-Evacuating System Page 8
e-Charging System Page 9
f-System Clean Up/Introduction Page 9
g-Heater Test-Drawer Perimeter Heater Page 10
XI. ELECTRICAL OPERATION
a-Normal Operation Page 10
b-Defrost Mode Page 10
c-Component Function Page 10
d-Installation Of The Sensors Page 11
XII. TROUBLESHOOTING Page 12
XIII. SERVICE PARTS LIST Page 13
XIV. SERVICE ASSISTANCE Page 14
I. THE SERIAL TAG Page 1
II. GENERAL INFORMATION Page 2
a-Introduction Page 2
b-Model Designations Page 2
c-Wiring Diagram Page 2
d-Installation Page 2
e-Cleaning Page 2
f-Tool Requirements Page 2
g-Refrigeration System-Theory of Operation Page 2
h-Air Flow Requirements Page 2
i-The Microprocessor Control Page 3
j-Control Location Page 3
k-Operating Data Chart-Refrigerator Page 3
l-Operating Data Chart-Freezer Page 3
m-Specications-Refrigerator Page 3
n-Specications-Freezer Page 3
III. SERVICE ACCESS
a-System Page 3
b-Evaporator Housing Cover Page 4
c-Accessing Start Components Page 4
IV. RE-HINGE DOOR(S) Page 4
FORT WORTH, TX.
SERIAL MODEL
VOLTS Hz PH
TOTAL CURRENT AMPS
MINIMUM CIRCUIT AMPS
MAXIMUM OVERCURRENT PROTECTION AMPS
LIGHTS WATTS
HEATERS AMPS
REFRIGERANT TYPE OZ
DESIGN PRESSURE HIGH LOW
REFRIGERANT TYPE OZ
DESIGN PRESSURE HIGH LOW
370-60294-00 REV (A)
Figure 1
Contents Summary of Traulsen
- Page 1Traulsen Refrigeration SERVICE MANUAL Instructions For The Troubleshooting And Repair Of Traulsen Full-Size Undercounter Refrigerators and Freezers TU044HT, TU072HT & TU100HT Refrigerator Models TU044LT & TU072LT Freezer Models This manual is prepared for the use of trained Authorized Traulsen Servi
- Page 2TABLE OF CONTENTS I. THE SERIAL TAG Page 1 V. CONDENSER FAN MOTOR OR BLADE Page 4 II. GENERAL INFORMATION Page 2 VI. CONDENSER COIL Page 5 a-Introduction Page 2 VII. EVAPORATOR FAN Page 5 b-Model Designations Page 2 VIII. COMPRESSOR Page 6 c-Wiring Diagram Page 2 IX. WIRING DIAGRAM Page 7 d-Installa
- Page 3II. GENERAL INFORMATION II. a-INTRODUCTION: II. f-TOOL REQUIREMENTS (cont’d): This manual applies to the following models only: ● Refrigeration Guage Manifold ● Refrigeration Reclaiming Equipment TU Series Full-Size Undercounter Refrigerators ● Acetylene Torch TU044HT, TU072HT & TU100HT ● Anti-Stati
- Page 4II. GENERAL INFORMATION (cont’d) II. i-THE MICROPROCESSOR CONTROL: II. m-SPECIFICATIONS-REFRIGERATOR: For detailed information on replacement, repair or adjustment of the INTELA-TRAUL® microprocessor control please refer to it’s TU044HT TU072HT TU100HT manual, form number TR35705 or contact our Serv
- Page 5III. SERVICE ACCESS (cont’d) V. CONDENSER FAN MOTOR OR BLADE III. a-SYSTEM(cont’d): V. a-REPLACEMENT INSTRUCTIONS: To gain full access to the refrigeration system from the Disconnect the electrical power to the machine side, remove the side cover by removing the screws. and follow lockout/tag out pr
- Page 6VI. CONDENSER COIL VII. EVAPORATOR FAN VI. a-REPLACEMENT INSTRUCTIONS: VII. a-REPLACEMENT INSTRUCTIONS: Disconnect the electrical power to the Disconnect the electrical power to the machine and follow lockout/tag out procedures. machine and follow lockout/tag out procedures. This procedure requires
- Page 7VIII. COMPRESSOR VIII. a-COMPRESSOR: Disconnect the electrical power to the machine and follow lockout/tag out procedures. This procedure requires the use of re- frigerants, be certain the work area is well ventilated. Safety goggles and gloves shall be worn since refrig- erants may cause burns to t
- Page 8IX. WIRING DIAGRAM NOTE: Refer to the wiring diagram below (applies to refrigerators and freezers units) for any service work performed by a qualified technician. -7-
- Page 9X. SERVICE PROCEDURES & ADJUSTMENTS Certain procedures in this section require electrical test or measurements while power is applied to the machine. Excercise extreme caution at all times. If test points are not easily accessible, disconnect power, attach test equipment and reapply power to test. X
- Page 10X. SERVICE PROCEDURES & ADJUSTMENTS (cont’d) Certain procedures in this section require electrical test or measurements while power is applied to the machine. Excercise extreme caution at all times. If test points are not easily accessible, disconnect power, attach test equipment and reapply power t
- Page 11X. PROCEDURES & ADJ. (cont’d) XI. ELECTRICAL OPERATION Certain procedures in this section re- XI. a-NORMAL OPERATION: quire electrical test or measurements while power is 1. Conditions applied to the machine. Excercise extreme caution a) Unit connected to correct voltage (check using a volt me- at a
- Page 12XI. ELECTRICAL OPERATION (cont’d) XI. c-COMPONENT FUNCTION: COMPONENT FUNCTION 1. Compressor Pumps refrigerant thru refrigeration system components and compresses the low pressure vapor into high pressure vapor. 2. Evaporator Fan Draws air across condenser coil to aid in removing heat from the refri
- Page 13XII. TROUBLESHOOTING Certain procedures in this section require electrical and refrigeration system test or measurements while power is applied to the machine, exercise extreme caution at all times. If test points are not easily accessible, disconnect power, attach test equipment and reapply power t
- Page 14XIII. SERVICE PARTS LIST NOTE: Part numbers listed are for standard products as currently manufactured. For products manufactured as other than standard, please contact the factory with model and serial number of unit in question. ITEM DESCRIPTION PART NUMBER Casters All Models 6” Adjustable - No Lo
- Page 15XIV. SERVICE ASSISTANCE XIV. a-SERVICE INFORMATION: NOTE: Before calling for service, please check the following: Is the electrical cord plugged in? Is the fuse OK or circuit breaker on? Clean condenser coil Is the power switch on? Reset microprocessor control values to factory defaults. If after ch
- Page 16HOURS OF OPERATION: Monday thru Friday 7:30 am - 4:30 pm CST Traulsen 4401 Blue Moud Road Fort Worth, TX 76106 Phone (800) 825-8220 Fax (817) 740-6757 Website: www.traulsen.com Quality Refrigeration © 2009 Traulsen - All Rights Reserved