Quality Refrigeration OWNER’S MANUAL Instructions for the installation, operation and maintenance of Traulsen: TU Series Full-Size Undercounter Refrigerators TU044HT, TU072HT & TU100HT TU Series Full-Size Undercounter Freezers TU044LT & TU072LT This Traulsen unit is built to our highest quality standards. We build our refrigerators and freezers this way as a matter of pride. This philosophy has made Traulsen the leader in commercial refrigeration since 1938.
TABLE OF CONTENTS I. THE SERIAL TAG II. RECEIPT INSPECTION III. INSTALLATION a-Location b-Packaging c-Adjusting the Casters d-Cord & Plug e-Power Supply IV. OPERATION a-Refrigerators b-Freezers V. CARE & MAINTENANCE a-Cleaning The Condenser/Filter b-Replacing The Gaskets c-Cleaning The Cabinet Surface VI. DRAWERS a-Removing The Door And Installing Drawers VII.
II. RECEIPT INSPECTION III. INSTALLATION (continued) All Traulsen products are factory tested for performance and are free from defects when shipped. The utmost care has been taken in crating this product to protect against damage in transit. III. c - INSTALLING/ADJUSTING LEGS OR CASTERS: You should carefully inspect your unit for damage during delivery. If damage is detected, you should save all the crating materials and make note on the carrier’s Bill Of Lading describing the damage.
V. CARE & MAINTENANCE IV. OPERATION IV. a - REFRIGERATORS: Both refrigerators and Freezers do not require manual defrosting. During normal operation, a refrigerator continuously circulates above freezing cabinet air through the coil. A compressor “OFF” cycle occurs every 2 1/2 Hours for 20 minutes to melt any frost which may accumulate on the coil during the compressor “ON” cycle. The control will read “dEF” and the green water drop will be illuminated.
V. CARE & MAINTENANCE-(continued) VI. DRAWERS V. b - REPLACING THE GASKETS: To remove the gasket to be replaced, grasp it firmly by one corner and pull it out. Before attempting to install a new gasket, both the unit and the gasket itself must be at room temperature. Insert the four corners first by using a rubber mallet (or hammer with a block of wood).
VII. MICROPROCESSOR CONTROL Your new refrigerator or freezer cabinet is equipped with a state-of-the-art microprocessor control, which precisely regulates operation and provides alarms when problems occur. It is supplied from the factory completely ready for use and requires no adjustments, but without the audible alarms activated. See pages 6 thru 16 for more information. FREEZER INTELA-TRAUL °F °C SET MICROPROCESSOR CONTROL VII.
VII. MICROPROCESSOR CONTROL (continued) VII. b - ALARM EXPLANATIONS: *NOTE: Explanation of alarms assume the audible alarm style is set at a 3-second burst or a continuous audible alarm. References to the audible alarm do not apply if the audible alarm style is set to OFF (Refer to page 16 for setting the audible alarm style). High Cabinet Air Temperature: The audible alarm will sound and the display will read HI CAb when the temperature inside the cabinet rises above a pre-programmed limit.
VII. MICROPROCESSOR CONTROL (continued) VII. c - CONTROL PANEL DIAGRAM: F LED & 0C LED 0 DEFROST SYBMBOL SET BUTTON INTELA-TRAUL °C SET FREEZER °F UP BUTTON & DOWN BUTTON LED DISPLAY RED ALARM ALARM CANCEL BUTTON LIGHT VII. d - NOTES TO THE USER: You only have 20-30 seconds between button pushes. If you take longer than 30 seconds, the controller will revert back to displaying the cabinet temperature.
VII. MICROPROCESSOR CONTROL (continued) VII. e - ENTER THE SERVICE ACCESS: Use the security code 0, A, 1 and the following instructions: Press the set button SET . The display will read Service Access. Press the set button SET . The display will show three zeros with the left zero flashing Press the set button SET . The display will show three zeros with the center zero flashing Press the down arrow key to sequence through F, E, d, C, b, A, 9, 8, 7,…etc.
VII. MICROPROCESSOR CONTROL (continued) VII. f - SERVICE PARAMETERS: Listed below are the available parameters in the order they appear, using the down arrow key on the controller. You can use either the up or down arrow keys to scroll through the options.
VII. MICROPROCESSOR CONTROL (continued) VII. h - ADJUSTING THERMOSTAT SET POINT LOW: This parameter sets the low point of the desired cabinet temperature range. Typically, freezers will range from –6°F to -4°F (-21°C to –20°C) and refrigerators will range from 32°F to 34°F ( 0°C to 1°C) for this parameter setting. This parameter is preset at the factory and does not have to be adjusted unless the customer chooses to do so. Note: Set Point Low and Set Point High cannot be set to the same temperature.
VII. MICROPROCESSOR CONTROL (continued) VII. j - SETTING THE 24-HOUR CLOCK: The internal time clock must be set in order for the data storage memory to correctly log events and to allow any defrost lockout to occur at the correct time of day. If the clock is not set, the control assumes the time is 12 am at the time power is supplied to the unit. The hours on a 24-hour time clock read the following way: H01 = 1:00 a.m. H02 = 2:00 a.m. H03 = 3:00 a.m. H04 = 4:00 a.m. H05 = 5:00 a.m.
VII. MICROPROCESSOR CONTROL (continued) VII. k - SETTING THE DATE: The date must be set in order for the data storage memory to correctly log events. Follow the instructions to enter the service access code on page 8. When the control displays key until the control display reads Thermostat Set Point High, press the down arrow Date. Press the set button SET . The display will show (year). The right two numbers will be flashing. Press the arrow keys correct year is displayed, press the set button SET .
VII. MICROPROCESSOR CONTROL (continued) VII. m - STARTING A MANUAL DEFROST CYCLE: This parameter allows a service technician to start a defrost cycle at any time. This parameter will override any lockout settings. Follow the instructions to enter the customer access code on page 8. When the control displays Thermostat Set High, press the down arrow key until the control display reads Start Manual Defrost.
VII. MICROPROCESSOR CONTROL (continued) VII. n - SETTING THE DEFROST LOCKOUTS: The defrost lockout parameters allow the customer to prevent the unit from going into a defrost cycle for two hours during a set time frame. Customers can set up to four defrost lockout parameters. They are all programmed the same way. The parameters will be set for the time the lockout is to start. The controller automatically calculates 2 hours from that setting.
VII. MICROPROCESSOR CONTROL (continued) VII. o - ADJUSTING THE DRAWER PERIMETER HEATERS: This parameter allows the customer to turn ON and OFF the anti-condensate door/drawer perimeter heaters. This parameter is set to the highest setting (100) at the factory so that the door/drawer heaters stay on continuously. If you choose to have the door/drawer heaters cycle on and off, lower this parameter to approximately 30.
VII. MICROPROCESSOR CONTROL (continued) VII. q - SETTING THE AUDIBLE ALARM STYLE: These parameters will allow the customer to turn on/off the audible alarm feature on the INTELA-TRAUL® control. The audible alarm is preset from the factory to OFF. The customer can choose between an audible alarm that sounds for 3 seconds then automatically turns off, or a continuous audible alarm that must be manually acknowledged. Regardless of this feature’s setting, visual alarm text will display when conditions warrant.
VIII. WIRING DIAGRAM Note: Refer to the wiring diagram below (applies to refrigerators and freezers units) for any service work performed by a qualified technician.
IX. TROUBLE SHOOTING GUIDE PROBLEM POSSIBLE SOLUTION 1. Condensing unit fails to start. a. Check if cord & plug has been disconnected. b. Clean Condenser 2. Condensing unit operates for prolonged periods or continuously. a. Are doors closed properly? b. Dirty condenser or filter. Clean properly. c. Evaporator coils iced. Needs to defrost. See instructions for setting a manual defrost cycle p. 13. 3. Food Compartment is too warm. a. Check door(s) and gasket(s) for proper seal. b.
X. SERVICE ASSISTANCE X. a - SERVICE INFORMATION: 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 checking the above items and the unit is still not operating properly, please contact an authorized Traulsen service agent.
XI. WARRANTIES STANDARD DOMESTIC WARRANTY TRAULSEN & CO., INC. warrants new equipment to the original purchaser, when installed within the United States against defective material and workmanship for one (1) year from the date of original installation. Under this warranty, TRAULSEN & CO., INC. will repair or replace, at its option, including service and labor, all parts found to be defective and subject to this warranty. The compressor part is warranted for an additional four (4) years.
XII. 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.
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HOURS OF OPERATION: Monday thru Friday 7:30 am - 4:30 pm CST Traulsen Quality Refrigeration 4401 Blue Moud Road Fort Worth, TX 76106 Phone (800) 825-8220 Fax (817) 740-6757 Website: www.traulsen.