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HOW TO DIAGNOSE AN LAE ELECTRONIC CONTROL

HOW TO LOCK AND UNLOCK LAE CONTROLLER:

STEP 1

 - To change lock setting press and release the Info button 

.  

“t1” will appear. See image 1.

STEP 2

 - Press the Down button 

 until “Loc” appears. See image 2.

STEP 3

 - While pressing and holding the Info button 

 press the Up 

 or Down 

 button to change the lock settings. If “no” appears, 

the controller is unlocked. If “yes” appears, the controller is locked. See 
images 3 and 4.

STEP 4

 - Once the lock setting has been set correctly release the 

info button 

. Wait 5 seconds for the display to show temperature. 

See image 5.

USING THE LAE ELECTRONIC CONTROL

LOCKING AND UNLOCKING THE LAE CONTROLLER:
WHY: 

Locking of control is necessary to prevent changes to program that may affect 

cabinet operation.

Image 3: If “no” appears on screen,  
the controller is unlocked.

3

2

1

5

4

Image 4: If “yes” appears on screen, the 
controller is locked.

Indicator lights for Refrigeration/Heating Mode, Fan Operation, Defrost Mode.

LAE Control

Info / Set Point

Button

Manual Activation 

Up Button

Manual Defrost / 

Down Button

Stand-By

Button

LAE Control Icons

Compressor Running

Activation of 2nd Parameter Set

Alarm

Cabinet in Defrost

Evaporator Fan Running

Summary of Contents for TGU-2-HC

Page 1: ...nc INSTALLATION MANUAL INSTALLATION MANUAL true counter refrigerators and freezers TABLE OF CONTENTS SAFETY INFORMATION Safety Precautions 1 Proper Disposal Connecting Electricity Adapter Plugs 2 INST...

Page 2: ...autions must be followed CAUTION Risk of fire or explosion Dispose of properly in accordance with federal or local regulations Flammable refrigerant used CAUTION Risk of fire or explosion due to punct...

Page 3: ...Y GROUNDED The power cord from this appliance is equipped with a grounding plug which minimizes the possibility of electric shock hazard Have the wall outlet and circuit checked by a qualified electri...

Page 4: ...ll wiring diagram is positioned on the inside cabinet wall INSTALLATION 1 2 OWNERSHIP To ensure that your unit works properly from the first day it must be installed properly We highly recommend a tra...

Page 5: ...6 6 6 6 6 5 4 4 3 70 10 10 8 6 6 6 5 5 4 4 2 2 80 10 8 8 6 6 5 5 4 4 3 2 2 90 10 8 6 6 5 5 4 4 3 3 1 1 100 10 8 6 6 5 4 4 3 3 2 1 1 115 Volts Distance In Feet To Center of Load Amps 20 30 40 50 60 70...

Page 6: ...ns 100 F 38 C you may want to install an exhaust fan WARNING WARRANTY IS VOID IF VENTILATION IS INSUFFICIENT B Proper leveling of your TRUE cooler is critical to operating success for non mobile model...

Page 7: ...Install the desired number of shims making sure the slot of the shim is in contact with the threaded stem of the castor See image 2 C If more than one shim is used turn the slot at a 90 angle so they...

Page 8: ...of the cooler Level cabinet STEP 3 Draw an outline on the base on the floor STEP 4 Raise and block the front side of the cabinet STEP 5 Apply a bead of NSF Approved Sealant see list below to floor on...

Page 9: ...e will vary upon model and age of cabinet Mechanical control or electronic control without display Inside cabinet Behind cabinet Behind front or rear access grill Electronic control with display In co...

Page 10: ...ture This cabinet temperature may reflect the refrigeration cycle of the Set Point and its Differential or it may show an average temperature The most accurate temperature on a cabinets operation is t...

Page 11: ...een set correctly release the info button Wait 5 seconds for the display to show temperature See image 5 USING THE LAE ELECTRONIC CONTROL LOCKING AND UNLOCKING THE LAE CONTROLLER WHY Locking of contro...

Page 12: ...t off power to the cabinet Cabinet must be unplugged prior to any repair HOW TO TURN OFF THE LAE ELECTRONIC CONTROL STEP 1 To turn off control press and hold the Stand by button until OFF appears Rele...

Page 13: ...TO CHANGE THE SET POINT STEP 1 To see the set point press and hold the Info button See image 1 STEP 2 While still holding the Info button press the Up or Down button to change the set point STEP 3 On...

Page 14: ...OST TIM If controller is preprogrammed for TIM press and release the Manual Defrost button until dEF appears REAL TIME CLOCK RTC If controller is preprogrammed for RTC press the and hold the Manual De...

Page 15: ...ding on the version of control one of three parameters will appear ScL image 1a SPL image 1b MdL image 1c STEP 2 Push the Up button until dFt appears See image 2 STEP 3 Press and hold the Info button...

Page 16: ...will appear See images 1a and 1b STEP 2 Push the Down button until ScL appears See image 2 STEP 3 Press and hold the Info button to see the readout scale See image 3 STEP 4 While pressing and holding...

Page 17: ...If probe T3 is not activated t3 will not appear of the display DISPLAYING TEMPERATURE PROBES T1 T2 T3 WHY To display temperature probe readings in different locations of the cabinet DISPLAY CODES DISP...

Page 18: ...EP 4 Clean off accumulated dirt from condensing coil with a stiff bristle brush STEP 5 Lift cardboard cover above fan at plastic plugs and carefully clean condenser coil and fan blades STEP 6 After br...

Page 19: ...expose the Condenser The Condenser looks like a group of vertical fins You need to be able to see through the condenser for the unit to function at maximum capacity Do not place filter material in fro...

Page 20: ...alternative Avoid cleaners containing quaternary salts as they can attack stainless steel causing pitting and rusting 4 WATER TREATMENT To reduce deposits soften the hard water when possible Installa...

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