True Manufacturing Company T-23DF-HC User manual

T-23DF-HC
TRUE MANUFACTURING CO., INC.
2001 East Terra Lane • O’Fallon, Missouri 63366-4434
(636)-240-2400 • FAX [phone] • INT'L FAX [phone] • (800)-325-6152
Parts Department (800)-424-TRUE • Parts Department FAX# [phone]
Web: www.truemfg.com
CONGRATULATIONS!
You have just purchased the finest commercial freezer available.
You can expect many years of trouble-free operation.
TRUE
MANUFACTURING CO., INC. INSTALLATION MANUAL
INSTALLATION MANUAL
T-23DF-HC
T-23DF-HC: DUAL FREEZER
TABLE OF CONTENTS
SAFETY INFORMATION
Safety Precautions 1
Proper Disposal, Connecting Electricity, & Adapter Plugs 2
INSTALLATION
Ownership, Uncrating, & How to Connect to Electricity 3
Wire Gauge Chart 4
Locating 4
Leveling 5
Installation of Legs or Castors 5
Sealing Cabinet to the Floor 6
SETUP
Standard Accessories 7
OPERATION
Startup 8
Electronic Temperature Controls Sequence of Operation 9
MAINTENANCE, CARE, CLEANING
Cleaning Condenser Coil 18
Important Warranty Information 19
Stainless Steel Equipment Care and Cleaning 20
WARRANTY
Warranty 21

1
TRUE
T-23DF-HC www.truemfg.com
NOTICE TO CUSTOMER
Loss or spoilage of products in your refrigerator/freezer is not covered by warranty.
In addition to following recommended installation procedures you must run the
refrigerator/freezer 24 hours prior to usage.
How to MaintainYour True Refrigerator to Receive the Most Efficient
and Successful Operation.
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.
TO LOCATE REFRIGERANT TYPE, SEE SERIAL LABEL
INSIDE CABINET. This cabinet may contain fluorinated green-
house gas covered by the Kyoto Protocol (please refer to cabinet’s
inner label for type and volume, GWP of 134a= 1,300. R404a=
3,800).
FOR HYDROCARBON REFRIGERATION ONLY (R-290)
SEE BELOW:
• DANGER - Risk of fire or explosion. Flammable refrigerant
used. Do not use mechanical devices to defrost refrigerator. Do
not puncture refrigerant tubing.
• DANGER - Risk of fire or explosion. Flammable refrigerant
used. To be repaired only by trained service personnel. Do not
puncture refrigerant tubing.
• CAUTION - Risk of fire or explosion. Flammable refrigerant
used. Consult repair manual/owner’s guide before attempting
to service this product. All safety precautions 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 puncture
of refrigerant tubing; follow handling instructions carefully.
Flammable refrigerant used.
• CAUTION - Keep clear of obstruction all ventilation openings
in the appliance enclosure or in the structure for building-in.
SAFETY PRECAUTIONS
When using electrical appliances, basic safety precautions should be
followed, including the following:
• This refrigerator must be properly installed and located in
accordance with the Installation Instructions before it is used.
• Do not allow children to climb, stand or hang on the shelves
in the refrigerator. They could damage the refrigerator and
seriously injure themselves.
• Do not touch the cold surfaces in the freezer compartment
when hands are damp or wet. Skin may stick to these
extremely cold surfaces.
• Do not store or use gasoline or other flammable vapors and
liquids in the vicinity of this or any other appliance. Do not store
explosive substances such as aerosol cans with a flammable
propellant in this appliance.
• Keep fingers out of the “pinch point” areas; clearances between
the doors and between the doors and cabinet are necessarily
small; be careful closing doors when children are in the area.
• Unplug the refrigerator before cleaning and making repairs.
• Setting temperature controls to the 0 position does not
remove power to the light circuit, perimeter heaters, or
evaporator fans.
NOTE: We strongly recommend that any servicing be preformed
by a qualified technician.
SAFETY INFORMATION

2
TRUE
T-23DF-HC www.truemfg.com
RISK OF CHILD
ENTRAPMENT
PROPER DISPOSAL OF THE REFRIGERATOR
Child entrapment and suffocation are not problems of the past.
Junked or abandoned refrigerators are still dangerous… even if they
will sit for “just a few days.” If you are getting rid of your old refrigera-
tor, please follow the instructions below to help prevent accidents.
BEFORE YOU THROW AWAY YOUR OLD
REFRIGERATOR OR FREEZER:
• Take off the doors.
• Leave the shelves in place so that children may not easily climb
inside.
APPLIANCE DISPOSAL
When recycling appliance please make sure that the refrigerants are
handled according to local and national codes, requirements and
regulations.
REFRIGERANT DISPOSAL
Your old refrigerator may have a cooling system that uses “Ozone
Depleting” chemicals. If you are throwing away your old refrigerator,
make sure the refrigerant is removed for proper disposal by a quali-
fied service technician. If you intentionally release any refrigerants you
can be subject to fines and imprisonment under provisions of the
environmental regulations.
USE OF EXTENSION CORDS
NEVER USE AN EXTENSION CORD! TRUE will not war-
ranty any refrigerator that has been connected to an extension cord.
REPLACEMENT PARTS
• Component parts shall be replaced with like components.
• Servicing shall be done by authorized service personnel, to
minimize the risk of possible ignition due to incorrect parts or
improper service.
• Lamps must be replaced by identical lamps only.
• If the supply cord is damaged, it must be replaced by a special
cord or assembly available from the manufacturer or its service
agent.
HOW TO CONNECT ELECTRICITY
DO NOT, UNDER ANY CIRCUMSTANCES, CUT OR
REMOVE THE GROUND PRONG FROM THE POWER
CORD. FOR PERSONAL SAFETY, THIS APPLIANCE
MUST BE PROPERLY 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 electrician to
make sure the outlet is properly grounded.
If the outlet is a standard 2-prong outlet, it is your personal respon-
sibility and obligation to have it replaced with the properly grounded
wall outlet.
The refrigerator should always be plugged into it’s own individual
electrical circuit, which has a voltage rating that matches the rating
plate.
This provides the best performance and also prevents overloading
building wiring circuits which could cause a fire hazard from over-
heated wires.
Never unplug your refrigerator by pulling on the power cord. Always
grip plug firmly and pull straight out from the outlet.
Repair or replace immediately all power cords that have become
frayed or otherwise damaged. Do not use a cord that shows cracks
or abrasion damage along its length or at either end.
When removing the refrigerator away from the wall, be careful not
to roll over or damage the power cord.
If supply power cord is damaged it should be replaced with original
equipment manufacture parts. To avoid hazard this should be done
by a qualified service technician.
USE OF ADAPTER PLUGS
NEVER USE AN ADAPTER PLUG! Because of potential safety
hazards under certain conditions, we strongly recommend against the
use of an adapter plug.
The incoming power source to the cabinet including any adapters
used must have the adequate power available and must be properly
grounded. Only adapters listed with UL should be used.
NORTH AMERICA USE ONLY!
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.
115/60/1
NEMA-5-15R
115/208-230/1
NEMA-14-20R
115/60/1
NEMA-5-20R
208-230/60/1
NEMA-6-15R
WARNING!DANGER!

3
TRUE
T-23DF-HC www.truemfg.com
12
OWNERSHIP
To ensure that your unit works properly from the first day, it must
be installed properly. We highly recommend a trained refrigeration
mechanic and electrician install your TRUE equipment. The cost of a
professional installation is money well spent.
Before you start to install your TRUE unit, carefully inspect it for
freight damage. If damage is discovered, immediately file a claim with
the delivery freight carrier.
TRUE is not responsible for damage incurred during shipment.
UNCRATING
TOOLS REQUIRED
• Adjustable Wrench
• Phillips Screwdriver
• Level
The following procedure is recommended for uncrating the unit:
A. Remove the outer packaging, (cardboard and bubbles or
Styrofoam corners and clear plastic). Inspect for concealed
damage. Again, immediately file a claim with the freight carrier
if there is damage.
B. Move your unit as close to the final location as possible before
removing the wooden skid.
C. Remove door bracket on swinging glass door models (see
image 1-2). Do not throw the bracket or blocks away. For
future cabinet movement the bracket and blocks will need to
be installed so the glass door does not receive any damage.
(See image for bracket and shipping block removal)
NOTE: KEYS FOR COOLERS WITH DOOR LOCKS
ARE LOCATED IN WARRANTY PACKETS.
ELECTRIC INSTALLATION & SAFETY
INFORMATION
• If the supply cord is damaged, it must be replaced by a special
cord or assembly available from the manufacturer or its service
agent.
• Lamps must be replaced by identical lamps only.
• Appliance tested according to the climate classes 5 and 7
temperature and relative humidity.
ELECTRICAL INSTRUCTIONS
A. Before your new unit is connected to a power supply, check the
incoming voltage with a voltmeter. If anything less than 100% of
the rated voltage for operation is noted, correct immediately.
B. All units are equipped with a service cord, and must be
powered at proper operating voltage at all times. Refer to
cabinet data plate for this voltage.
TRUE RECOMMENDS THAT A SOLE USE CIRCUIT BE
DEDICATED FOR THE UNIT.
WARNING: Compressor warranties are void if compressor burns
out due to low voltage.
WARNING: Power supply cord ground should not be removed!
WARNING: Do not use electrical appliances inside the food
storage compartments of the appliances unless they are of the type
recommended by the manufacturer.
NOTE: To reference wiring diagram, remove front louvered grill,
wiring diagram is positioned on the inside cabinet wall.
INSTALLATION

4
TRUE
T-23DF-HC www.truemfg.com
230 Volts Distance In Feet To Center of Load
Amps 20 30 40 50 60 70 80 90 100 120 140 160
5 14 14 14 14 14 14 14 14 14 14 14 14
6 14 14 14 14 14 14 14 14 14 14 14 12
7 14 14 14 14 14 14 14 14 14 14 12 12
8 14 14 14 14 14 14 14 14 14 12 12 12
9 14 14 14 14 14 14 14 14 12 12 12 10
10 14 14 14 14 14 14 14 12 12 12 10 10
12 14 14 14 14 14 14 12 12 12 10 10 10
14 14 14 14 14 14 12 12 12 10 10 10 8
16 14 14 14 14 12 12 12 10 10 10 8 8
18 14 14 14 12 12 12 10 10 10 8 8 8
20 14 14 14 12 10 10 10 10 10 8 8 8
25 14 14 12 12 10 10 10 10 8 8 6 6
30 14 12 12 10 10 10 8 8 8 6 6 6
35 14 12 10 10 10 8 8 8 8 6 6 5
40 14 12 10 10 8 8 8 6 6 6 5 5
50 12 10 10 8 6 6 6 6 6 5 4 4
60 12 10 8 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 80 90 100 120 140 160
2 14 14 14 14 14 14 14 14 14 14 14 14
3 14 14 14 14 14 14 14 14 14 14 14 12
4 14 14 14 14 14 14 14 14 14 12 12 12
5 14 14 14 14 14 14 14 12 12 12 10 10
6 14 14 14 14 14 14 12 12 12 10 10 10
7 14 14 14 14 14 12 12 12 10 10 10 8
8 14 14 14 14 12 12 12 10 10 10 8 8
9 14 14 14 12 12 12 10 10 10 8 8 8
10 14 14 14 12 12 10 10 10 10 8 8 8
12 14 14 12 12 10 10 10 8 8 8 8 6
14 14 14 12 10 10 10 8 8 8 6 6 6
16 14 12 12 10 10 8 8 8 8 6 6 6
18 14 12 10 10 8 8 8 8 8 8 8 5
20 14 12 10 10 8 8 8 6 6 6 5 5
25 12 10 10 8 8 6 6 6 6 5 4 4
30 12 10 8 8 6 6 6 6 5 4 4 3
35 10 10 8 6 6 6 5 5 4 4 3 2
40 10 8 8 6 6 5 5 4 4 3 2 2
45 10 8 6 6 6 5 4 4 3 3 2 1
50 10 8 6 6 5 4 4 3 3 2 1 1
WIRE GAUGE CHART LOCATING
A. Remove louver from the front of cabinet (see page 11 for
louver grill removal / reinstallation) and backguard (if applicable)
from rear of cabinet.
B. Skid bolts are located in each of 4 corners inside cabinet
bottom. (See photo A).
C. Remove skid bolts. (See photo B).
D. Cut straps if applicable. (See photo C).
E. Carefully lift cabinet off of skid.
F. Appliance tested according to the climate classes 5 and 7 for
temperature and relative humidity.
Removing skid from bottom
of cabinet.
A
B C

5
TRUE
T-23DF-HC www.truemfg.com
LEVELING
A. Set unit in its final location. Be sure there is adequate ventilation
in your room. Under extreme heat conditions, (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 models). Effective condensate removal
and door operation will be effected by leveling.
C. The cooler should be leveled front to back and side to side with
a level.
D. Ensure that the drain hose or hoses are positioned in the pan.
E. Free plug and cord from inside the lower rear of the cooler
(do not plug in).
F. The unit should be placed close enough to the electrical supply
so that extension cords are never used.
NOTE: If the cabinet has a center leveling screw, castor, or leg,
make sure it is adjusted properly so it makes full contact with the
floor after the cabinet has been leveled.
WARNING: CABINET WARRANTIES ARE VOID
IF OEM POWER CORD IS TAMPERED WITH.TRUE
WILL NOT WARRANTY ANY UNITS THAT ARE
CONNECTED TO AN EXTENSION CORD.
INSTALLATION OF CASTORS OR
OPTIONAL LEGS
Important Safeguard for installation of leg/castor. Images 1-5 demon-
strate procedure.
SECURING CASTORS AND LEGS
To obtain maximum strength and stability of the unit, it is important
that you make sure each castor is secure. Optional legs are hand-
tightened securely against the lower rail assembly see image 4-5. The
bearing race on the castor or the top edge of the leg must make firm
contact with the rail.
LEVELING SHIMS
Four leveling shims have been provided for leveling castored units
positioned on uneven floors. Shims must be positioned between rail
end and bearing race.
A. Turn the bearing race counter-clockwise until the cabinet is
level. Level front to back and side to side. (diagonally)
B. 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 are not in line.
D. Turn the bearing race clockwise to tighten and secure the
castor by tightening the anchoring bolt with a 3/4 inch open-
end wrench or the tool provided. See image 3.
CAUTION: TO AVOID DAMAGE TO LOWER RAIL
ASSEMBLY, SLOWLY RAISE UNIT TO UPRIGHT
POSITION.
NOTE: OPEN HOLES LOCATED ON THE CROSS
MEMBERS OF THE FRAME RAIL SHOULD BE
PLUGGED BEFORE UNIT IS IN USE.
P

6
TRUE
T-23DF-HC www.truemfg.com
SEALING CABINET TO FLOOR
STEP 1 - Position Cabinet - Allow one inch between the wall and
rear of the refrigerator to assure proper ventilation. For freezers 3
inches between the wall and rear of the cabinet will assure proper
ventilation.
STEP 2 - Level Cabinet - Cabinet should be level, side to side and
front to back. Place a carpenter’s level in the interior floor in four
places:
A. Position level in the inside floor of the unit near the doors.
(Level should be parallel to cabinet front). Level cabinet.
B. Position level at the inside rear of cabinet. (Again level should
be placed parallel to cabinet back).
C. Perform similar procedures to steps A & B by placing the level
on inside floor (left and right sides - parallel to the depth 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 half inch inside the outline drawn.The bead must be heavy
enough to seal the entire cabinet surface when it is down on the
sealant.
STEP 6 - Raise and block the rear of the cabinet
STEP 7 - Apply sealant on floor as outlined in Step 5 on other
three sides.
STEP 8 - Examine to see that cabinet is sealed to floor around
entire perimeter.
NOTE: Asphalt floors are very susceptible to chemical attack. A
layer of tape on the floor prior to applying the sealant will protect
the floor.
NSF APPROVED SEALANTS:
1. Minnesota Mining #ECU800 Caulk
2. Minnesota Mining #ECU2185 Caulk
3. Minnesota Mining #ECU1055 Bead
4. Minnesota Mining #ECU1202 Bead
5. Armstrong Cork - Rubber Caulk
6. Products Research Co. #5000 Rubber Caulk
7. G.E. Silicone Sealer
8. Dow Corning Silicone Sealer
Rail End
Lower Rail
Assembly
Snug Fit
Here
Leveling Shim
CastorLeg
Bearin
g
Race
Lower Rail Assembly
Snug Fit
Here
Rail End
Thread castor into the underside of
cabinet frame rail.
1
For leveling, insert the shim between
castor and frame rail.
2
Use the tool provided to tighten the
castor into place.
3
Thread leg into cabinet bottom
frame rail.
4
5
The end of the leg is adjustable for
easy leveling.

7
TRUE
T-23DF-HC www.truemfg.com
SHELF INSTALLATION:
For Proper Shelf Clip Installation Please Read The Following
Instructions.
STEP 1
Install the top tab of the shelf clip into the proper hole. Push up on
the bottom of the clip. (See image 1).
STEP 2
Bottom tab of the shelf clip will fit tightly.You may need to squeeze or
twist the bottom of the shelf clip to install. (See image 2 & 3).
STEP 3
After installation, the shelf clip will fit snug into the shelf standard.
The shelf clip should not be loose or able to wiggle out of the shelf
standard.
SHELF INSTALLATION TIPS
1. Install all the shelf clips before installing the shelves.
2. Start at the bottom in terms of shelf installation and work your
way up.
3. Always lay the back of each shelf down on the rear clips before
the front.
WARNING!
Do not use pliers or any crimping
tools when installing shelf clips.
Altering shelf clips in any way can
lead to shelving instability.
Installing top tab of shelf clip
1
You may need to squeeze or twist
the bottom of the shelf clip to
install
3
Installing bottom of the shelf
clip
2
Shelf clip installation complete
4
STANDARD ACCESSORIES
SHELVING INSTALLATION / OPERATION
SHELF INSTALLATION:
A. Hook shelf clips onto shelf standards.
B. Position all four shelf clips equal in distance from the floor for
flat shelves.
C. Lower front of gravity feed TrueTrac organizers to enable
proper feed.
D. Place shelves on shelf clips making sure all corners are seated
properly.
SETUP
Shelf
Clip
Shelf
Shelf
Pillaster
(I-beam)
Shelf
Standards
T-Series
& GDM-5
Airflow
Guard

8
TRUE
T-23DF-HC www.truemfg.com
STARTUP
A. The compressor is ready to operate. Plug in the cooler.
B. Temperature controls are factory-set to give freezers an
approximate temperature of -10°F (-23.3°C). Allow unit to
function several hours, completely cooling cabinet before
changing the control setting.
Temperature Control Location and Settings.
• Temperature control type 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 countertop
- In top louvered panel
- In or behind bottom louvered grill
See website for adjustments, sequence of operation, and more
information.
C. Excessive tampering with the control could lead to service
difficulties. Should it ever become necessary to replace
temperature control, be sure it is ordered from your TRUE
dealer or recommended service agent.
D. Good air flow in your TRUE unit is critical. Be careful to
load product so that it neither presses against the back wall,
nor comes within four inches of the evaporator housing.
Refrigerated air off the coil must circulate down the back wall.
NOTE: If the unit is disconnected or shut off, wait five minutes
before starting again.
RECOMMENDATION - Before loading product we recommend
you run your TRUE unit empty for two to three days. This allows
you to be sure electrical wiring and installation are correct and no
shipping damage has occurred. Remember, our factory warranty does
not cover product loss!
LIGHT SWITCH LOCATION:
Light switch location depends upon the T-Series model. Most T-Series
models will have the light switch located inside the unit on the right
side of the ceiling. Most instances the switch is located next to the
temperature control. Some models have the switch located on the
right side of the evaporator housing along the interior ceiling.
OPERATION

9
TRUE
T-23DF-HC www.truemfg.com
LAE ELECTRONIC CONTROL GENERAL SEQUENCE OF OPERATION
1. Cabinet is plugged in.
a. Display will illuminate.
b. Interior light will illuminate on Glass Door Models only. Solid door cabinet lights are controlled by the door switch.
2. After the LAE control preprogrammed time delay of up to 6 minutes, the compressor and evaporator fan(s) will start if the
control is calling for cooling.
a. Control or condenser fans may be already pre-programmed from the factory so at the start of every compressor cycle or
during a defrost cycle, the condenser fan(s) will reverse for 30 seconds to blow dirt off the condensing coil.
3. The LAE control will cycle the compressor but may also cycle evaporator fan(s) on and off determined by the Set-Point and
Differential temperatures.
a. The Set-Point is the adjustable preprogrammed temperature which shuts off the compressor and evaporator fan(s).
This is not the programmed cabinet temperature.
b. The Differential is the non adjustable preprogrammed temperature that is added to the Set-Point temperature that will
restart the compressor and evaporator fan(s).
c. The LAE control is designed to read and display a cabinet temperature not a product temperature.
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 to verify the product temperature.
Example: If the Set-Point is -9°F/-23°C and the Differential is 10°F/5°C
(Set-Point) -9°F + 10 (Differential) = 1°F
Or
(Set-Point) -23°C + 5 (Differential) = -18°C
The compressor and evaporator fan(s) will cycle off -9°F/-23°C and back on at 1°F/-18°C
4. The LAE control may be preprogrammed to initiate defrost by interval or at specific times of day.
a. At this time the “dEF” will appear on the display and compressor will turn off until a preprogrammed temperature or
duration is reached. During this time for freezers only, evaporator fan(s) will also turn off and the coil heater and drain tube
heaters will also be energized. Some cabinets may also change the rotation of the reversing condenser fan motor.
b. After the preprogrammed temperature or duration for defrost has been reached there may be a short delay for both the
compressor and evaporator fans to restart. At this time “dEF” may still appear on the display for a short time.
ELECTRONIC TEMPERATURE CONTROLS
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.

10
TRUE
T-23DF-HC www.truemfg.com
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

11
TRUE
T-23DF-HC www.truemfg.com
HOW TO TURN OFF THE LAE ELECTRONIC CONTROL:
May need to unlock control.
WHY: Turning off the control will deactivate all electrical components.
CAUTION: Turning off the control will not shut 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. Release Stand-by button. See Image 2.
STEP 2 -To turn on control, repeat prior steps and a temperature will appear.
ON Position
TURNING THE GLASS DOOR MODEL LIGHTS ON AND OFF:
May need to unlock control.
WHY: Light may be controlled by LAE Controller or interior light switch.
(Solid Door model lights are controlled by a
door switch)
HOW TO TURN THE GLASS DOOR MODEL LIGHT ON
AND OFF:
STEP 1 - To control interior / sign lights by the LAE Controller, press and
release the Manual Activation button .
STEP 2 - To control interior / sign lights by the interior door switch, depress
the rocker switch to the “ON” position. Light switch is located on inside top
right of the ceiling.
1
2
LAE Control
Manual Activation
Up Button
Info / Set Point
Button
Stand-By
Button
Manual Defrost /
Down Button

12
TRUE
T-23DF-HC www.truemfg.com
CHANGING THE "SET POINT":
May need to unlock control.
WHY: The set point is the temperature at which the compressor will shut off.
NOTE: The “set point” IS NOT the cabinet holding temperature.
HOW 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 - Once the “set point” has been set correctly release the Info
button .The display will show temperature. See image 2.
1
2
LAE Control
Manual Activation
Up Button
Info / Set Point
Button
Stand-By
Button
Manual Defrost /
Down Button

13
TRUE
T-23DF-HC www.truemfg.com
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.
HOW TO INITIATE A MANUAL DEFROST:
The method to initiate a manual defrost is determined by the Defrost Mode Parameter “DFM” preprogrammed in the controller.
REGULAR TIME DEFROST (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 Defrost button for 5 seconds until “dh1” appears.
Release the Manual Defrost button and then press and hold for an additional 5 seconds until “dEF” appears.
NOTE: Defrost will only terminate once a specific preset temperature or a preset time duration is reached.
LAE Control
Manual Activation
Up Button
Info / Set Point
Button
Stand-By
Button
Manual Defrost /
Down Button

14
TRUE
T-23DF-HC www.truemfg.com
CHANGING “DEFROST INTERVALS”:
May need to unlock control.
This can only be changed if defrost mode parameter “DFM” is set for “TIM”.
WHY: The defrost interval is the time duration between defrost cycles. The defrost
interval time starts when the cabinet is supplied power or after a manual defrost.
1a
1c
1b
2
3
4
HOW TO CHANGE “DEFROST INTERVALS":
STEP 1 - To see the set point, press and hold the Info button and the
Stand-by button at the same time.
NOTE: Depending 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 to see the defrost interval
time. See image 3.
STEP 4 - While pressing and holding the Info button , press the
Up or Down button to change the defrost interval times (higher
the number the less frequent the cabinet will defrost).
STEP 5 - Once the defrost interval time has been changed, release the Info
button .
STEP 6 - Wait 30 seconds for the display to show temperature.
See image 4.
LAE Control
Manual Activation
Up Button
Info / Set Point
Button
Stand-By
Button
Manual Defrost /
Down Button

15
TRUE
T-23DF-HC www.truemfg.com
1
2
3
4
5
LAE Control
Manual Activation
Up Button
Info / Set Point
Button
Stand-By
Button
Manual Defrost /
Down 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.
WHY: Changing readout will assist with customer application.
HOW TO CHANGE DISPLAY READOUT FROM
FAHRENHEIT TO CELSIUS:
STEP 1 - To change the display, press and hold the Info button and
the Stand-by button at the same time. “MdL” or “SPL” 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 the Info button , press the
up or down button to change the “readout scale".
See image 4.
STEP 5 - Once the “readout scale” has been changed, release the info
button .
STEP 6 - Wait 30 seconds for the display to show temperature.
See image 5.
1a
1b
2
3
4
5

16
TRUE
T-23DF-HC www.truemfg.com
2
1
HOW TO DISPLAY PROBE TEMPERATURES:
STEP 1 - To display T1 temperature, press and release the info button
. “t1” will appear. See image 1.
STEP 2 - Press and hold the info button . This is the temperature of
the T1 Probe. See image 2.
STEP 3 - By releasing the info button ,“t2” will appear. Press and hold
the info button to display the temperature of the T2 probe.
STEP 4 - By releasing the info button again,“t3” will appear. Press and
hold the info button to display the temperature of the T3 probe. (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
DISPLAY
Defrost in progress Room high temperature alarm
Controller in stand-by Room low temperature alarm
Door open alarm Probe T1 failure
Instant Probe 1 temperature Probe T2 failure
Instant Probe 2 temperature Probe T3 failure
Instant Probe 3 temperature Maximum probe 1 temperature recorded
Minutes of the Real Time Clock Minimum probe 1 temperature recorded
Hours of the Real Time Clock Keypad state lock
LAE Control
Manual Activation
Up Button
Info / Set Point
Button
Stand-By
Button
Manual Defrost /
Down Button

17
TRUE
T-23DF-HC www.truemfg.com
FAILURE MODES AND EFFECTS ANALYSIS:
If unit is running warm,please review the list of below recommendations:
IS THERE SIGN OF ELECTRICAL POWER TO
THE UNIT?
1. Is the electronic control illuminated?
2. If you open the door, are the lights on, or is the fan operating?
3. Are you able to hear the compressor cycling?
If the unit is connected to a dedicated receptacle, please insure the
fuse or circuit breaker supplying voltage to the receptacle is in the
“on” position.
ARE THE DOORS COMPLETELY CLOSING? (INSURE
GASKETS ARE IN GOOD CONDITION)
Doors must be enabling the door switch for the interior fans to
operate.
IF TEMPERATURE DISPLAY IS READING ABOVE THE
RECOMMENDED OPERATING CONDITIONS. IF SO,
PLEASE REFER TO BELOW:
Is the unit in defrost mode? – To confirm this, open the door of the
unit and push in the door switch with your finger. If the evaporator
fans (located in the interior ceiling) do not begin cycling when door
switch is in, then this designates that the unit is in defrost mode.
PLEASE NOTETHATTEMPERATURE DISPLAYED IS NOT ALWAYS
REPRESENTATIVE OF PRODUCT TEMPERATURES. You should be
concerned with interior product temperatures only, thus checking the
temperature of an interior product is recommended if digital display
seems to be out of operating parameters.
ON MODEL T-23DF,THERE ARE 2 DOOR SWITCHES
– ONE LOCATED IN STANDARD POSITION ON TOP
OF DOOR AND ON LOCATED ON THE BOTTOM
DOOR.
Please insure that bottom louvered grill is installed properly and if this
has recently been removed for cleaning, please confirm that the cord
attached to the grill is connected to the ballast box.
CONFIRM THAT THE UNIT IS CORRECTLY LOADED
WITH PRODUCT – ALLOWING FOR PROPER
AIRFLOW WITH SUFFICIENT CLEARANCE INSIDE
OF THE UNIT.
THIS IS CRITICAL FOR PROPER CABINET OPERATION AND
CONSISTENT TEMPERATURE THROUGHOUT. Please contact
TRUE should you need a guide to proper loading of equipment.
For freezers, please note that this unit is designed as a holding freezer,
not a blast chiller – It is recommended that already frozen product
be loaded into the freezer.
FOR ANY OTHER FAILURE MODES THAT
ARE NOT LISTED, PLEASE CONTACT A TRUE
REPRESENTATIVE.

18
TRUE
T-23DF-HC www.truemfg.com
MAINTENANCE, CARE, CLEANING
CLEANING THE CONDENSER COIL
When using electrical appliances, basic safety precautions should be
followed, including the following:
TOOLS REQUIRED
STEP 1 - Disconnect power to unit.
STEP 2 - Take off lower grill assembly by opening the door and
removing screws from the top of the louver grill. Some models have
a door light switch. Please use caution when removing the grill on
these models. Do not pinch wires. For reinstall, reattach the grill to
the magnets on front of the cabinet and reinstall the screws on top
of the grill. Image 1.
STEP 3 - Remove bolts anchoring compressor assembly to frame
rails and carefully slide out. (tube connections are flexible)
STEP 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 brushing condenser coil vacuum dirt from coil, and
interior floor.
STEP 7 - Replace cardboard cover. Carefully slide compressor
assembly back into position and replace bolts.
STEP 8 - Reinstall louver assembly onto unit with appropriate
fasteners and clips.Tighten all screws.
STEP 9 - Connect unit to power and check to see if condenser is
running.
• Phillips Screwdriver
• Stiff Bristle Brush
• Adjustable Wrench
• Air Tank or CO2 Tank
• Vacuum Cleaner
1

19
TRUE
T-23DF-HC www.truemfg.com
IMPORTANT WARRANTY INFORMATION
Condensers accumulate dirt and require cleaning every 30 days.
Dirty condensers result in compressor failure, product loss, and lost
sales, which are not covered by warranty.
If you keep the Condenser clean you will minimize your service
expense and lower your electrical costs. The Condenser requires
scheduled cleaning every thirty days or as needed.
Air is pulled through the Condenser continuously, along with dust,
lint, grease, etc.
A dirty Condenser can result in NON-WARRANTEED part &
Compressor Failures, Product Loss, and Lost Sales.
Proper cleaning involves removing dust from the Condenser. By using
a soft brush, or vacuuming the Condenser with a shop vac, or using
CO2, nitrogen, or pressurized air.
If you cannot remove the dirt adequately, please call your refrigera-
tion service company.
On most of the reach-in units the condenser is accessible in the
rear of the unit. You must remove the cabinet grill to 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 front of condensing coil. This
material blocks air-flow to the coil similar to having a dirty coil.
THE CLEANING OF THE CONDENSER IS NOT
COVERED BY THE WARRANTY!
HOW TO CLEAN THE CONDENSER:
1. Disconnect the electrical power to the unit.
2. Remove the louvered grill.
3. Vacuum or brush the dirt, lint, or debris from the finned
condenser coil.
4. If you have a significant dirt build up you can blow out the
condenser with compressed air.
(CAUTION MUST BE USED TO AVOID EYE INJURY.
EYE PROTECTION IS RECOMMENDED.)
5. When finished be sure to replace the louvered grill. The grill
protects the condenser.
6. Reconnect the electrical power to the unit.
If you have any questions, please call TRUE Manufacturing at 636-240-
2400 or 800-325-6152 and ask for the Service Department. Direct
to Service Department 1(855)372-1368. Service Department
Availability Monday-Thursday 7:00 a.m. to 7:00 p.m., Friday 7:00 a.m.
to 6:00 p.m. and Saturday 8:00 a.m. to 12:00 p.m. CST.
Condensing Unit
Airflow
Condenser