Page 1: Table Of Contents
WARRANTY Warranty TAC-72-LD INSTALLATION MANUAL AIR CURTAIN TRUE FOOD SERVICE EQUIPMENT, INC. 2001 East Terra Lane • O’Fallon, Missouri 63366-4434 (636)-240-2400 • FAX (636)-272-2408 • INT'L FAX (636)272-7546 • (800)-325-6152 Parts Department (800)-424-TRUE • Parts Department FAX# (636)-272-9471 Web: www.truemfg.com...
Page 2: Safety Information
You have selected one of the finest commercial refrigeration units made. It is manufactured under strict quality controls with only the best quality materials available. Your TRUE cooler when properly maintained will give you many years of trouble-free service. WARNING: Use this appliance for its intended purpose as described in this Owner Manual.
Page 3: Proper Disposal, Connecting Electricity, & Adapter Plugs
NEMA plugs TRUE uses these types of plugs. If you do not have the right outlet have a certified electrician install the correct power source. NOTE: International plug configurations vary by voltage and country.
Page 4: Installation
• Lamps must be replaced by identical lamps only. Before you start to install your TRUE unit, carefully inspect it for freight damage. If damage is discovered, immediately file a claim with • Appliance tested according to the climate classes 5 and 7 the delivery freight carrier.
Page 5: Recommended Operating Conditions
TRUE AIR CURTAIN TRUEMFG TAC RECOMMENDED OPERATING CONDITIONS INSTALLATION TIPS • Do not place into direct sunlight. X X X X X X X X X X X X X X X X X X X X X X X X •...
Page 6: Locating
TRUE AIR CURTAIN TRUEMFG LOCATING WARNING: BE SURE THERE IS ADEQUATE VENTILATION IN YOUR ROOM. MAXIMUM AMBIENT CONDITION 75 DEGREES AND 55% RELATIVE HUMIDITY. WARRANTY IS VOID IF VENTILATION IS INSUFFICIENT. CLEARANCES For proper cabinet operation, clearance guidelines should be followed.
Page 7: Leveling
INSUFFICIENT. WARNING: CABINET WARRANTIES ARE VOID IF OEM POWER CORD IS TAMPERED WITH. TRUE Proper leveling of your TRUE cooler is critical to operating WILL NOT WARRANTY ANY UNITS THAT ARE success (for non-mobile models). Effective condensate removal CONNECTED TO AN EXTENSION CORD.
Page 8: Installation Of Legs Or Castors
TRUE AIR CURTAIN TRUEMFG INSTALLATION OF LEGS AND CASTORS LEG LEVELERS: If the cabinet is not level use an open-end wrench and turn adjustable tips on legs until cooler is level. (See image 1). CASTOR INSTALLATION: (KIT CONTENTS) Castor mounting bracket Castor, 2-1/2"...
Page 9: Setup
TRUE AIR CURTAIN TRUEMFG SETUP STANDARD ACCESSORIES CANTILEVER SHELVING INSTALLATION: A. Install the shelf supports into the shelf standards that are located SHELVING INSTALLATION / OPERATION in the rear corners of the cabinet. See photos 1 & 2. SHELF INSTALLATION: A.
Page 10 TRUE AIR CURTAIN TRUEMFG TAC-48SM-LD SHELVING INSTALLATION: Note: For ease of installation it is recommended to install the lower shelf first. Shelf Standard INSTALLING SHELF BRACKET INTO SHELF STANDARD Bracket Support Tab STEP 1 Position the shelf bracket in front of the shelf standard. Raise the...
Page 11 TRUE AIR CURTAIN TRUEMFG FLAVOR STRIP INSTALLATION A. Take the shelf and turn it around. The back of the shelf should be facing out. See images 1-2. The flavor strip snaps onto the shelf with the larger opening of the strip toward the bottom. See images 3-4.
Page 12: Operation
RECOMMENDATION - Before loading product we recommend Temperature controls are factory-set to give refrigerators an you run your TRUE unit empty for two to three days. This allows you approxiate temperature of 35°F (1.6ºC). Allow unit to function to be sure electrical wiring and installation are correct and no ship- several hours, completely cooling cabinet before changing the ping damage has occurred.
Page 13: Mechanical Temperature Controls Sequence Of Operation
TRUE AIR CURTAIN TRUEMFG MECHANICAL TEMPERATURE CONTROLS COIL SENSING An evaporator coil sensing temperature control ensures that the evaporator coil will remain clear of frost and ice by not allowing the compressor to restart until the coil temperature is above the freezing temperature.
Page 14 TRUE AIR CURTAIN TRUEMFG WHEN TO MAKE AN ADJUSTMENT TO A MECHANICAL TEMPERATURE CONTROL We advise to make a mechanical temperature control adjustment only for a high altitude location. HOW TO ADJUST A MECHANICAL TEMPERATURE CONTROL OPERATION INSTRUCTIONS: Scale Guide for Measuring...
Page 15 TRUE AIR CURTAIN TRUEMFG INSTRUCTIONS: DANFOSS TEMPERATURE CONTROL ADJUSTMENT FOR HIGH ALTITUDE APPLICATIONS STEP 1 - Unplug cooler. STEP 2 - Remove the screws that secure the temperature control to the inset box. STEP 3 - To make these adjustments it may be necessary to remove the temperature control from the housing.
Page 16 TRUE AIR CURTAIN TRUEMFG CHART CCW Adjustment (based on 360°/ Height complete turn) 2000' 42° 3000' 78° 4000' 114° 5000' 150° 6000' 186° 7000' 222° 8000' 258° 9000' 294° 10,000' 330° BUL. NO.
Page 17 RECOMMENDED DEFROST SETTINGS: The following procedure may be followed to customize your needs. TRUE Manufacturing has factory set your defrost time clock to a High usage, high temperature, and high humidity may require 4 recommended time and duration defrost scenario. All refrigeration defrost settings per day.
Page 18: Electronic Temperature Controls Sequence Of Operation
TRUE AIR CURTAIN TRUEMFG ELECTRONIC TEMPERATURE CONTROLS DIXELL ELECTRONIC TEMPERATURE CONTROL GENERAL SEQUENCE OF OPERATION p1 = supply air (thermostat) p2 = coil / copper line (defrost) p3 = return air (display) p3 probe is not installed and / or activated in all applications with p3 is not installed and / or activated, the display probe is p1.
Page 19 TRUE AIR CURTAIN TRUEMFG DIGITAL TEMPERATURE CONTROL COMMANDS: MODE FUNCTION The compressor is running Use of LED: Each LED function is described in the table below. - Programming phase (ﬂashing with LED FLASHING - Anti-short cycle delay enabled Key Combinations:...
Page 20 TRUE AIR CURTAIN TRUEMFG THE SET POINT IS WHERE THE COMPRESSOR WILL Dixell Control XW60VS SHUT OFF. HOW TO SEE AND MODIFY THE SET POINT: STEP 1 - Model XW60VS push and immediately release the (SET) key. Model XR160C push and hold the (SET) key: The display will show the (SET) point value.
Page 21 TRUE AIR CURTAIN TRUEMFG THE INTERVAL BETWEEN DEFROST Dixell Control XW60VS TERMINATION IS THE TIME BETWEEN EACH DEFROST CYCLE. NOTE: This interval is started when the cabinet is plugged in or after initiate of manual defrost. HOW TO SEE “idF” INTERVAL...
Page 22 TRUE AIR CURTAIN TRUEMFG LAE ELECTRONIC TEMPERATURE CONTROL GENERAL SEQUENCE OF OPERATION t1 = Thermostat t2 = Defrost t3 = Display t3 probe is not installed and / or activated in all applications when t3 is not installed and / or activated, the display probe is t1.
Page 23 TRUE AIR CURTAIN TRUEMFG HOW TO DIAGNOSE AN LAE ELECTRONIC CONTROL Indicator lights for Refrigeration/Heating Mode, Fan Operation, Defrost Mode. LAE Control LAE Control Icons Compressor Running Evaporator Fan Running Cabinet in Defrost Activation of 2nd Parameter Set Alarm Info / Set Point...
Page 24 TRUE AIR CURTAIN TRUEMFG LAE Control Info / Set Point Manual Defrost / Button Down Button Manual Activation Stand-By Up Button Button HOW TO TURN OFF THE LAE ELECTRONIC CONTROL: May need to unlock control. WHY: Turning off the control will deactivate all electrical components.
Page 25 TRUE AIR CURTAIN TRUEMFG LAE Control Info / Set Point Manual Defrost / Button Down Button Manual Activation Stand-By Up Button Button CHANGING THE "SET POINT": May need to unlock control. WHY: The set point is the temperature at which the compressor will shut off.
Page 26 TRUE AIR CURTAIN TRUEMFG LAE Control Info / Set Point Manual Defrost / Button Down Button Manual Activation Stand-By Up Button Button INITIATE A MANUAL DEFROST: May need to unlock control. WHY: A one time additional defrost may be necessary to clear accumulated frost / ice from evaporator coil.
Page 27 TRUE AIR CURTAIN TRUEMFG LAE Control Info / Set Point Manual Defrost / Button Down Button Manual Activation Stand-By Up Button Button CHANGING “DEFROST INTERVALS”: May need to unlock control. This can only be changed if defrost mode parameter “DFM” is set for “TIM”.
Page 28 TRUE AIR CURTAIN TRUEMFG LAE Control Info / Set Point Manual Defrost / Button Down Button Manual Activation Stand-By Up Button Button HOW TO CHANGE DISPLAY READOUT FROM FAHRENHEIT TO CELSIUS: May need to unlock control. This can NOT be changed with the LAE model AR2-28 version of the control. See page 32 for more information.
Page 29 TRUE AIR CURTAIN TRUEMFG LAE Control Info / Set Point Manual Defrost / Button Down Button Manual Activation Stand-By Up Button Button DISPLAYING TEMPERATURE PROBES, T1, T2, T3: WHY: To display temperature probe readings in different locations of the cabinet.
Page 30 TRUE AIR CURTAIN TRUEMFG LAE CONTROLLER PARAMETER SETTINGS FOR CELSIUS AR2-28 For LAE control model AR2-28 ONLY, ALL parameters with a formula (X-32) / 1.8 shown need to be converted for Celsius applications. (X-32) / 1.8 (X-32) / 1.8 (X-32) / 1.8...
Page 31: Maintenance, Care, Cleaning
STEP 6 - Connect unit to power and check to see if condensing unit is running. All TRUE TAC Models are manufactured with Reversing Condenser Fan Motors. This kind of fan motor allows less dust and dirt to accu- mulate onto the condenser coil. This reduces the required cleaning time of the condenser coil and allows for less expensive operating costs.
Page 32: Important Warranty Information
If you cannot remove the dirt adequately, please call your refrigera- tion service company. If you have any questions, please call TRUE Manufacturing at 636- 240-2400 or 800-325-6152 and ask for the Service Department. On most of the reach-in units the condenser is accessible in the Direct to Service Department 1(855)372-1368.
Page 33: Stainless Steel Equipment Care And Cleaning
TRUE AIR CURTAIN TRUEMFG STAINLESS STEEL EQUIPMENT CARE 8 STEPS THAT CAN HELP PREVENT RUST ON AND CLEANING STAINLESS STEEL: CAUTION: Do not use any steel wool, abrasive or chlorine based USING THE CORRECT CLEANING TOOLS products to clean stainless steel surfaces.
Page 34: General Maintenance
TRUE AIR CURTAIN TRUEMFG GENERAL MAINTENANCE LIGHT BULB REPLACEMENT WARNING: Disconnect power to cabinet before replacing light bulbs. LIGHT BULB REPLACEMENT: • Hold firmly on the end of the light bulb and pull toward the center of the cabinet. The lampholders are spring activated so the bulb can easily be replaced.
Page 35 TRUE and upon proper installation and start-up in accordance with the instruc- tion packet supplied with each TRUE unit. TRUE’s obligation under this warranty is limited to a period of three (3) years from the date of original installation or 39 months after shipment date from TRUE, whichever occurs first.

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