True T-23DT-HC User manual

T-23DT
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 / refrigerator
available. You can expect many years of trouble-free operation.
TRUE
MANUFACTURING CO., INC. INSTALLATION MANUAL
INSTALLATION MANUAL
T-23DT
T-23DT: Freezer/Refrigerator
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 9-17
MAINTENANCE, CARE, CLEANING
Cleaning Condenser Coil 18
Important Warranty Information 19
Stainless Steel Equipment Care and Cleaning 20
WARRANTY
Warranty 21

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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

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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
refrigerator, 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
qualified 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
warranty 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
responsibility 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
overheated 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!

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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

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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

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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

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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.

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SHELF INSTALLATION:
For Proper Shelf Clip Installation Please Read The Following
Instructions.
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

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STARTUP
A. The compressor is ready to operate. Plug in the cooler.
B. Temperature controls are factory-set to give refrigerators
an approximate temperature of 35°F (1.6°C) and 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
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. This is considered an off cycle defrost.
AIR SENSING
An air sensing temperature control used in a freezer application will require a defrost cycle with
heaters to ensure that the evaporator coil is kept clear of frost and ice.

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MECHANICAL TEMPERATURE CONTROL GENERAL SEQUENCE OF OPERATION
MECHANICAL CONTROL REFRIGERATOR GENERAL SEQUENCE OF OPERATION
1. Cabinet is plugged in.
a. Interior lights will illuminate on Glass Door Models only. If lights do not come on verify the light switch is in the “ON”
position. Solid door cabinets may or may not have lights that may be controlled by the door switch.
2. The compressor and evaporator fans will start if the temperature control is calling for cooling. (If the compressor does not
start, verify that the temperature control is not in the “OFF” or “0” position.)
3. The temperature control may cycle the compressor and evaporator fan(s) on and off together.
a. The temperature control is sensing the evaporator coil temperature.
b. The temperature control should be set on the #4 or #5.
c. The warmest setting is #1, the coldest is #9, and #0 is the off position.
d. The thermometer is designed to read and display a cabinet temperature not a product temperature.
The thermometer may reflect the refrigeration cycle swings of up and down temperatures.
The most accurate temperature on a cabinet's operation is to verify the product temperature.
4. There is not a defrost timer as the temperature control will initiate the off-cycle defrost during each refrigeration cycle.
a. At this time, the compressor will and the evaporator fan(s) may turn off. Defrost heaters are not installed on refrigerators
and therefore will not be energized.
b. After the evaporator coil temperature has been reached, as determined by the temperature control, the compressor will
restart.
5. There may be a timer located on the condensing unit base. This timer is not used for a defrost event. The timer will change
the rotation of the reversing condenser fan motor.
MECHANICAL CONTROL FREEZER GENERAL SEQUENCE OF OPERATION
1. Cabinet is plugged in.
a. Interior lights will illuminate on glass door models only. If lights do not come on, verify the light switch is in
the “ON” position. Solid door cabinets may or may not have lights that may be controlled by the door switch.
2. The compressor only will start if the temperature control is calling for cooling. (If the compressor does not start, verify that
the temperature control is not in the “OFF” or “0” position or the cabinet is not in a defrost event.)
a. The evaporator fan(s) will remain off until a specific temperature of the evaporator coil is reached.
3. The temperature control may cycle the compressor and evaporator fan(s) on and off together.
a. The temperature control is sensing the air temperature.
b. The temperature control should be set on the #4 or #5.
c. The warmest setting is #1, the coldest is #9, and #0 is the off position.
d. The thermometer is designed to read and display a cabinet temperature not a product temperature.
The thermometer may reflect the refrigeration cycle swings of up and down temperatures.
The most accurate temperature on a cabinet's operation is to verify the product temperature.
4. The defrost timer will initiate defrost during specific times of day.
a. At this time, the compressor and evaporator fan(s) will turn off and the evaporator coil heater and drain tube heater will
be energized. Some cabinets may also change the rotation of the reversing condenser fan motor.
b. After the predetermined evaporator coil temperature has been reached or duration for defrost has expired, the
compressor will restart and the evaporator fan(s) will remain off until a specific temperature of the evaporator coil is
reached.

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1
INSTALLATION INSTRUCTIONS
DANFOSS TEMPERATURE CONTROL ADJUSTMENT
FOR HIGH ALTITUDE APPLICATIONS:
REQUIRED TOOLS:
• Allen Wrench (5/64")
• Torx Screw (T-7)
TERMS:
Cut-out - Temperature sensed by the controller that shuts the
compressor off.
Cut-in - Temperature sensed by the controller that turns the
compressor on.
WHEN TO MAKE AN ADJUSTMENT TO A MECHANICAL TEMPERATURE CONTROL
OPERATION INSTRUCTIONS:
REQUIRED TOOLS:
• Jewelers Screw Driver (Small Screw Driver)
GE CONTROL INSTRUCTIONS:
The scale to the right may be used as a guide for measuring
degrees of rotation required for altitude correction. See Figure 1.
The arrows indicate direction of screw rotation. Turn calibration
screw clockwise to obtain warmer operating temperatures.
NOTE: Each 1/4 turn of the calibration screw is equal to
approximately 2 degrees F. Do not make more than 3/4 turn.
After making adjustment, measure temperature during three
cycles before adjusting again.
NOTE: Only adjust the screw
(small flathead) on the face of
the control (next to the cam).
See Figure 3.
Follow the Altitude Correction
Table to the right.
W
A
R
M
E
R
C
O
L
D
E
R
60
30
45
40
35
50
55
15
20
25
10
5
We advise to make a mechanical temperature control adjustment only for a high altitude location.
Compressor
Terminals
Ground
Ter minal
To adjust the temperature control
take the control knob off to view the
cut-in screw. (See Photo Above)
Front of Temperature Control
Calibration
Screw
1 2
3
Cut-out Adjustment
Screw Allen (5/64" or 2 mm.)
Cut-in Adjustment
Screw Torx (T-7)
Compressor
Connection
ALTITUDE CORRECTION TABLE:
CALIBRATION SCREW ADJUSTS
BOTH CUT-IN AND CUT-OUT
Altitude (Feet)
2000
3000
4000
5000
6000
7000
8000
9000
10,000
Clockwise Turns
7/60
11/60
15/60
19/60
23/60
27/60
30/60
34/60
37/60
Compressor Connection
(double terminal)
HOW TO ADJUST A MECHANICAL TEMPERATURE CONTROL
Altitude Correction
Scale Guide for Measuring Back of Temperature Control
Bottom of Temperature Control

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INSTALLATION INSTRUCTIONS
TEMPERATURE CONTROL ALTITUDE ADJUSTMENT:
REQUIRED TOOLS:
• Allen Wrench (5/64”)
• Torx Screw (T-7)
The scale to the right may be used as a guide for measuring degrees of rotation required for altitude
correction. The arrows indicate direction of screw rotation. See Figure 1.
IMPORTANT: Upright models ordered with “High Altitude” temperature controls are
pre-calibrated and do not require adjustment.
90
180
270
360
1
Scale Guide for Measuring
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.
NOTE: You may have to remove the wires attached to the control. Take note as to which wire is on which spade terminal.
STEP 4 - Pull out gently from cabinet.
NOTE: Mechanical temperature controllers are affected when functioning at high altitude.
The cut-in and cut-out temperatures will be colder than when the controller functions closer to sea level.
STEP 5 - For high elevation installations, it may be necessary to “warm-up” the set points. To make the adjustment, insert the
appropriate tool in each adjustment screw and turn 1/4 of a revolution clockwise (to the right). This procedure will adjust both
the cut-in and cut-out about 2˚F warmer.
STEP 6 - Make sure to reconnect the wires to the proper spade terminal when reinstalling.
INSTRUCTIONS: CUTLER HAMMER TEMPERATURE CONTROL ALTITUDE ADJUSTMENT
STEP 1 - Unplug cooler.
STEP 2 - Turn the temperature control to the “9” position.
STEP 3 - Remove the screws that secure the mounting plate to the evaporator top. See Figure 2.
STEP 4 - Pull control down gently from housing.
STEP 5 - Turn screws counterclockwise (CCW).
STEP 6 - Reassemble to cooler housing and return the temperature control to the “5” position.

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O
9
8
7
6
5
4
3
2
1
2
O
9
8
7
5
4
3
2
1
CUT
OUT
CUT
IN
COLDER
BUL. NO.
CHART
CCW Adjustment
(based on 360°/
complete turn)Height
2000' 42°
3000' 78°
4000' 114°
5000' 150°
6000' 186°
7000' 222°
8000' 258°
9000' 294°
10,000' 330°

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DANFOSS ELECTRONIC CONTROL REFRIGERATOR WITH DIGITAL DISPLAY
GENERAL SEQUENCE OF OPERATION
1. Cabinet is plugged in.
a. Interior lights will illuminate on glass door models only. If the lights do not come on verify the light switch is in the “ON”
position. Solid door cabinets may or may not have lights that may be controlled by the door switch.
b. Cabinet will start in a Defrost Cycle. The duration for defrost will be a minimum of 4 minutes and a maximum
of 60 minutes.
c. The Danfoss Control Display will illuminate showing “deF”.
2. The Danfoss control is preprogrammed to initiate defrost every 4 hours of compressor run time.
If deemed necessary by the Danfoss control additional defrost may occur at unspecified times.
a. At this time the, evaporator fans will continue to run but the compressor will turn off.
Some cabinets may also change the rotation of the reversing condenser fan motor.
b. Once a preprogrammed temperature of the evaporator coil is reached, the Defrost Cycle will terminate and the
2 minute delay will start.
c. After the 2 minute delay the compressor will restart.
d. The Danfoss Control Display will continue to show “deF” for an additional 30 minutes.
3. The Danfoss control will cycle the compressor and the 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
start the compressor and evaporator fan(s).
c. The Danfoss 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. The most accurate temperature on a
cabinets operation is to verify the product temperature.
Example: If the Set-Point is 34°F/1.1°C and the Differential is 6°F/3.3°C
(Set-Point) 34°F + 6 (Differential) = 40°F
Or
(Set-Point) 1.1°C + 3.3 (Differential) = 4.4°C
The compressor will cycle off 34°F/1.1°C and back on at 40°F/4.4°C
DANFOSS ELECTRONIC TEMPERATURE CONTROLS

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DANFOSS ELECTRONIC CONTROL FREEZER WITH DIGITAL DISPLAY
GENERAL SEQUENCE OF OPERATION
1. Cabinet is plugged in.
a. Interior lights will illuminate on glass door models only. If the lights do not come on verify the light switch is in the “ON”
position. Solid door cabinets may or may not have lights that may be controlled by the door switch.
b. Cabinet will start in a Defrost Cycle. The duration for defrost will be a minimum of 4 minutes and a maximum of
30 minutes.
c. The Danfoss Control Display will illuminate showing “deF”.
2. The Danfoss control is preprogrammed to initiate defrost every 4 hours of compressor run time.
If deemed necessary by the Danfoss control additional defrost may occur at unspecified times.
a. At this time, the compressor and evaporator fan(s) will turn off and the evaporator coil heater and drain tube heater will
be energized. Some cabinets may also change the rotation of the reversing condenser fan motor.
b. Once a preprogrammed temperature of the evaporator coil is reached, or 30 minutes, the Defrost Cycle will terminate
and the 2 minute delay will occur.
c. After the 2 minute delay the compressor will restart.
d. The evaporator fans will remain off for an additional 3 minutes.
e. The Danfoss Control Display will continue to show “deF” for an additional 30 minutes.
3. The Danfoss control will cycle the compressor and the 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
start the compressor and evaporator fan(s).
c. The Danfoss 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 it’s Differential.
The most accurate temperature on a cabinets operation is to verify the product temperature.
Example: If the Set-Point is -6°F/1°C and the Differential is 6°F/4°C
(Set-Point) -6°F + 6 (Differential) = 0°F
Or
(Set-Point) -21.4°C + 3.3 (Differential) = -18.1°C
The compressor will cycle off -6°F/-21.4°C and back on at 0°F/-18.1°C
DANFOSS ELECTRONIC TEMPERATURE CONTROLS

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ELECTRONIC TEMPERATURE CONTROLS -
DANFOSS:
1
Turning On Power
2
Turning Off Power
USING A DANFOSS ELECTRONIC CONTROL
WITH DIGITAL DISPLAY:
STEP 1 - Press both buttons to power on the
temperature control. See Figure 1.
STEP 2 - Press both buttons and hold for 6 seconds
to power off the temperature control. See Figure 2.
STEP 3 - Press bottom button and hold for 6 seconds to
defrost. See Figure 3.
STEP 4 - Press and release top or bottom button for 2
seconds to display cut out temperature.
Raise or lower the set point, use the top or bottom to go
up or down. Release the button and temperature will go
back. See Figure 4.
NOTE: The set point / cut-out temperature is NOT the
cabinet temperature.
STEP 5 - Press upper button and hold for 5 seconds to
change temperature settings from ºF to ºC.
See Figure 5.
Defrost
3
Cut Out Temperature
4
Celsius Temperature
5
HOW TO USE THE DANFOSS ELECTRONIC CONTROL
DANFOSS ELECTRONIC TEMPERATURE CONTROLS

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ELECTRONIC TEMPERATURE CONTROLS -
DANFOSS:
1
Turning On Power
2
Turning Off Power
USING A DANFOSS ELECTRONIC CONTROL
WITH DIGITAL DISPLAY:
STEP 1 - Press the POWER button for 5 seconds
to power on the temperature control. See Figure 1.
STEP 2 - Press the POWER button for 5 seconds
to power off the temperature control. See Figure 2.
STEP 3 - Press the DEFROST button for 3 seconds
to defrost. See Figure 3.
STEP 4 - Press the UP button for 3 seconds to
display the set point /cut-out temperature. Press the UP
or DOWN button to raise or lower the
temperature. See Figure 4.
NOTE: The set point / cut-out temperature is NOT the
cabinet temperature.
STEP 5 - Press the UP button for 10 seconds, ºF or
ºC will display. Press the UP button to change from
°F to °C. See Figure 5.
Defrost
3
Cut Out Temperature
4
Celsius Temperature
5
HOW TO USE THE DANFOSS ELECTRONIC CONTROL
DEFROST DOWN UP POWER
DANFOSS ELECTRONIC TEMPERATURE CONTROLS

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DISPLAY CODES
ALARMS ALARM TYPE CODE SHOWN VALUE
Sensor 1 defect E1 –
Sensor 2 defect E2 –
Compressor fault E4 –
Heater fault E5 –
Pot fault E6 –
Supply voltage low ULo –
Supply voltage high UHi –
High temperature alarm Hi Temperature
Low temperature alarm Lo Temperature
Communication error E13 –
DANFOSS ELECTRONIC TEMPERATURE CONTROLS

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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
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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