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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