True TWT-67D-2-HC User manual

Page 1 of 2412/13/2022
975530
TEC_TM_090 | REV. C | EN
INSTALLATION MANUAL
REFRIGERATED FOOD PREP
TRUE MANUFACTURING CO., INC.
TWT-67D-2-HC
TFP-72-30M-D-2
TSSU-48-10-HC
INSTALLATION MANUAL
REFRIGERATED FOOD PREP
Original Instructions
TRUE MANUFACTURING CO., INC.
2001 East Terra Lane • O’Fallon, Missouri 63366-4434
[phone] • FAX: [phone]
International FAX: [phone] • (800)-325-6152
Parts Department: (800)-424-TRUE (424-8783)
Parts Department FAX: [phone]
North America – Canada and Caribbean
Warranty Phone: [phone]
Warranty Fax: [phone]
Warranty Email: [e-mail]
Technical Phone: [phone]
Technical Email: [e-mail]
7:00am–6:00pm CST Monday–Friday,
8:00am–12:00pm Saturday
UK, Ireland, Middle East, Africa
& India
Phone: [phone]
[e-mail]
8:30am–5:00pm M–F
European Union & Commonwealth of
Independent States
Phone: [phone]
[e-mail]
8:00am–5:00pm M–F
Australia
Phone: [phone]
[e-mail]
8:30am–5:00pm M–F
Mexico
Phone: [phone]
[e-mail]
9:00am–5:30pm M–F
Latin America
Phone: [phone]
[e-mail]
9:00am–5:30pm M–F
UNDERCOUNTERS • WORKTOPS • SANDWICH/SALAD • PIZZA PREP • FOOD PREP
*975530*
TPP-AT-67-HC

TEC_TM_090 | REV. C | EN12/13/2022Page 2 of 24
REFRIGERATED FOOD PREP www.truemfg.com
THANK YOU
FOR YOUR PURCHASE
Safety Information
Safety Precautions & Proper Disposal..........3
Installation
Ownership, Location, Wire Gauge
Chart ........................................................................4
Uncrating................................................................5
Locating & Leveling............................................6
Castors.....................................................................7
Sealing Cabinet to the Floor ...........................8
Electrical Installation & Safety ........................9
Cabinet Setup
Ensuring Correct Airflow (TPP).....................10
Drawer Removal and Installation................10
Cabinet Operation
Startup, Temperature Control & Light
Switch Location..................................................12
General Sequence of Operation..................13
Maintenance, Care & Cleaning
Condenser Coil Cleaning................................14
Drain Line Cleaning..........................................15
Stainless Steel Equipment Care
& Cleaning............................................................16
Lid & Composite Cutting Board
Maintenance .......................................................17
False Bottom Installation/Removal.............18
Cabinet Adjustments, Servicing &
Component Replacement
Servicing & Replacement
Components .......................................................19
Reversing Door...................................................20
Warranty
Warranty ...............................................................21
Congratulations!
You have just purchased the finest commercial refrigerator available. You can expect many
years of trouble-free operation.
Table of Contents

TEC_TM_090 | REV. C | EN 12/13/2022 Page 3 of 24
REFRIGERATED FOOD PREP www.truemfg.com
How to Maintain Your 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 Installation Manual.
• Take care during operation, maintenance or repairs to avoid
cuts or pinching from any part/component of the cabinet.
• Units may pose a tipping hazard while uncrating, during
installation, or when moving the unit.
• Ensure the unit is properly installed and located in accordance
with the Installation Instructions before use.
• This appliance is not to be used, cleaned or maintained by
persons (including children) with reduced physical, sensory or
mental capabilities or lack of experience and knowledge, unless
they have been given supervision or instruction.
• DO NOT allow children to play with the appliance or climb,
stand, or hang on the unit's shelves to prevent damage to the
refrigerator and personal injury.
• DO NOT touch the cold surfaces in the freezer compartment
when hands are damp or wet. Skin may stick to these extremely
cold surfaces.
• Unplug the refrigerator before cleaning and making repairs.
• Setting temperature controls to the 0 position or powering
off an electronic control may not remove power from all
components (e.g., light circuits, perimeter heaters, and
evaporator fans).
• 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 cabinet are necessarily small; be careful closing
doors when children are in the area.
• DO NOT use electrical appliances inside the food storage
compartments of the units unless the appliances are of the
type recommended by the manufacturer.
NOTE: All servicing must be performed by a qualified
technician.
See the serial label inside the cabinet for the units refrigeration type. For Hydrocarbon Refrigeration (R290 only), see below:
DANGER – Risk of fire or explosion. Flammable refrigerant used. DO NOT use mechanical devices to defrost
refrigerator. DO NOT puncture refrigerant tubing; follow handling instructions carefully. To be repaired only by trained
service personnel.
DANGER – 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. Dispose of properly in accordance with
local and federal regulations. Follow all safety precautions.
CAUTION – Keep all ventilation openings clear of obstruction in the appliance enclosure or in the structure housing
the appliance.
DANGER!
RISK OF CHILD
ENTRAPMENT
Proper Disposal of the Cabinet
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 throwing away your old refrigerator or
freezer:
• Take off the doors.
• Leave the shelves in place so that children may not easily
climb inside.
DANGER – Risk of fire or explosion. Flammable insulation and/
or refrigerant used. Dispose of all in accordance
with local and federal regulations. Follow all safety
precautions.
Cabinet Disposal Warning
Refrigerant Safety & Warning Information
Basic Safety & Warning Precautions

REFRIGERATED FOOD PREP www.truemfg.com
TEC_TM_090 | REV. C | EN12/13/2022Page 4 of 24
Installation
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.
Cabinet Specification
This appliance is rated for the storage and/or display of
prepackaged or bottled food product.
Cabinet Location
• Appliance tested for IEC to ISO Climate Class 8 [75°F (24°C)
temperature, 55% relative humidity].
• For proper operation, ambient temperatures shall not be
less than 60°F (15.5°C) and no greater than 75°F (24°C), or as
indicated on the serial label.
• Appliance is not suitable for outdoor use.
• Appliance is not suitable for an area where a pressure washer or
hose may be used.
• Under extreme heat conditions [greater than 100°F (38°C)], you
may want to install an exhaust fan
• Ensure the location will provide adequate clearances and
sufficient airflow for the cabinet.
• Ensure the power supply for the cabinet matches the cabinet
specification sheet or cabinet data plate and is within the
rated voltage (+/-5%). Also, that the amp rating of the circuit is
correct and that it is properly grounded.
• The cabinet should always be plugged into its own individual
dedicated electrical circuit. The use of adapter plugs and
extension cords is prohibited.
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 for
24 hours prior to usage to verify its proper
operation.
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
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
Wire Gauge Chart
CLEARANCES
TOP SIDES BACK
TPP/TSSU N/A 0" (0 mm) 0" (0 mm)
TUC/TWT 0" (0 mm) 0" (0 mm) 0" (0 mm)
WARNING – Warranty is void if ventilation is insufficient.

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Installation (cont.)
Uncrating
Tools Required
• Adjustable wrench
• Phillips screwdriver
• Level
The following procedure is recommended for uncrating the unit:
1. Remove the outer packaging (cardboard and bubbles or
styrofoam corners and clear plastic). See fig. 1. Inspect for
concealed damage. Again, immediately file a claim with
the freight carrier if there is damage.
NOTE: DO NOT remove the shipping bracket (glass swing
doors; fig. 2) until the unit is installed in its final location. Do
not discard; use the bracket/blocks when next moving the
cabinet.
2. With an adjustable wrench, remove all shipping bolts securing
the wood skid to the bottom of the cabinet. See fig. 3.
NOTE: Move the unit as close as possible to the final
location before removing the wooden skid. Some models
may require removing the front and/or rear grill to access
the shipping bolts.
3. If leveling legs or castors will not be used, remove the
cabinet from the wood skid and set the skid aside.
NOTE: DO NOT lift the cabinet by the countertops, doors,
drawers, or grills.
If leveling legs or castors will be used, rotate the cabinet on
the skid (see fig. 4) and see the installation instructions on
page 6.
NOTE: Remember to leave cabinet upright for 24 hours before
plugging into a power source. Keys for cabinet with door locks
are located in the warranty packet.
Fig. 3. Remove all shipping bolts.
Fig. 2. Do not remove shipping brackets until unit is in final location.
Fig. 1. Remove exterior packaging.
Fig. 4. Rotate cabinet on skid to install leveling legs or castors.

REFRIGERATED FOOD PREP www.truemfg.com
TEC_TM_090 | REV. C | EN12/13/2022Page 6 of 24
Fig. 1. Turn the leveling legs clockwise to lower the unit.
Cabinet Location
1. Ensure that the drain hose or hoses are positioned in the pan.
2. Free the plug and cord from inside the lower rear of the cooler
(DO NOT plug in).
3. Place the unit close enough to the electrical supply so that the
extension cords are never used.
Leveling Leg, 6" Leveling Leg, or Castor Installation
Leveling legs are provided to assist with leveling the cabinet.
Adjustable legs will provide 6" (152 mm) of clearance under the
cabinet. Castors provide cabinet mobility.
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.
Required Tools
Required tools include (but may not be limited to) the following:
Adjustable Wrench
Procedure —Leveling Legs
With access to the bottom of the cabinet, thread the leveling legs
into the holes used to secure the cabinet to the skid. See figs. 1
and 2.
Procedure —6" (152 mm) Leveling Legs
1. Access the bottom of the cabinet and thread the leveling legs
into the rail. See figs. 3 and 4.
2. Verify that the cabinet is level.
3. If the cabinet is not level, gently lift and support the low end
of the cabinet. With an adjustable wrench, screw the bottom
stem of the leveling leg in or out to level and support the
cabinet. See fig. 5.
Fig. 2. Turn the leveling legs counterclockwise to raise the unit.
Fig. 5. Turn the bottom stem to level the
cabinet.
Fig. 3. Locate the threaded hole in the
rail.
Fig. 4. Screw in the leveling legs.
Installation (cont.)
Lower Rail Assembly
Seismic
Leg
Snug Fit
Here
Rail End
Bottom Stem

REFRIGERATED FOOD PREP
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Castors
1. Loosen the castor bolt enough to slide the provided castor
shims between the castor bearing and the bottom rail of the
cabinet. See fig. 6.
2. Install the desired number of shims. If more than one shim is
used, turn the slots at a 90˚ angle to each other, so the slots
do not align. See fig. 7.
3. Tighten and secure the shims and castors with the optional
castor wrench. Lower the cabinet and verify that it is level. If
the cabinet is not level, repeat the process until the cabinet
is level and supported.
Installation (cont.)
WARNING – Units may pose a tipping hazard
while uncrating, during installation, or when
moving the unit.
Fig. 7. Install shim(s).
Fig. 6. Loosen castor bolt.
Fig. 8. Position multiple shims at
90˚ angles.
Leveling Shim
Lower Rail Assembly
Bearing Race
Snug Fit Here
Rail End
Castor
Castor Stem
Fig. 9. Locate castor box. Back out the four screws anchoring the box.
Fig. 10. One castor box on each cabinet is fully enclosed.
Castors (TFP Models Only; Previous Design)
If the unit is not level, add castor shims as described below or
adjust the leveling legs' bottom stems.
1. Position packing material behind the unit and carefully lay
the unit on its back.
2. Remove the castor box. See fig. 9.
NOTE: Each unit has one castor box that completely
encloses the castor. With a 1/4" hex-head driver,
disassemble the castor box. See fig. 10.
3. Install the desired number of shims. See previous page
for instructions.
4. Tighten and secure the shims and castor with optional castor
wrench.
5. Install the castor box.
6. Carefully raise the cabinet to an upright position and verify
the level. If the cabinet is not level, repeat the process until
the cabinet is level and supported.

REFRIGERATED FOOD PREP www.truemfg.com
TEC_TM_090 | REV. C | EN12/13/2022Page 8 of 24
Installation (cont.)
Leveling
Proper leveling of your TRUE cooler is critical to operating success
(for non-mobile models). Leveling impacts effective condensate
removal and door operation.
Procedure
Level the unit front-to-back and side-to-side.
1. Position the level on the inside floor of the unit near the doors
(the level should be parallel to cabinet front). Level the cabinet.
2. Position the level at the inside rear of cabinet (again, the level
should be placed parallel to cabinet back). Level the cabinet.
3. Perform procedures similar to steps 1 and 2 by placing the
level on inside floor (left and right side, parallel to the depth of
the cooler). Level the cabinet.
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.
Sealing the Cabinet to the Floor
Asphalt floors are susceptible to chemical attack. A layer of tape
may be placed on the floor prior to applying the sealant to protect
the floor.
Procedure
1. Position the cabinet, allowing 3" (73 mm) between the wall
and the rear of the cabinet to ensure proper ventilation.
2. Level the cabinet. The cabinet should be level side-to-side
and front-to-back. To check that the cabinet is level, place a
carpenter's level on the interior cabinet floor in four places:
a. Position the level on the inside floor of the cabinet, near
the doors (the level should be placed parallel to the cabinet
front). Level the cabinet.
b. Position the level at the inside rear of the cabinet (the level
should be placed parallel to the cabinet back). Level the
cabinet.
c. Perform procedures similar to a and b by placing the level
on the left and right inside floor (level should be parallel to
the cabinet sides). Level the cabinet.
3. Draw an outline of the cooler base on the floor.
4. Raise and block the front side of the cabinet.
5. Apply a bead of NSF-approved sealant (see list below) to the
floor, 1/2" (13 mm) inside the front part of the outline drawn in
step 4. The bead of sealant must be heavy enough to seal the
entire cabinet surface when the cabinet is lowered on top of
the sealant.
6. Raise and block the rear of the cabinet.
7. Apply sealant to the floor on the other three sides, as outlined
in step 5.
8. Examine the the cabinet to ensure that it is sealed to the floor
around the entire perimeter.
NSF-Approved Sealants
• 3M #ECU800 Caulk
• 3M #ECU2185 Caulk
• 3M #ECU1055 Bead
• 3M #ECU1202 Bead
• Armstrong Cork – Rubber Caulk
• Products Research Co. #5000 Rubber Caulk
• G.E. Silicone Sealer
• Dow Corning Silicone Sealer

REFRIGERATED FOOD PREP
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Installation (cont.)
How to Connect Electricity
• The power cord from this appliance is equipped with a
grounding plug which minimizes the possibility of electric
shock hazard.
• The wall outlet and circuit should be checked by a licensed
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.
• DO NOT, under any circumstances, cut or remove the ground
prong from the power cord. For personal safety, this appliance
must be properly grounded.
• Before your new unit is connected to a power supply, check
the incoming voltage with a voltmeter. If the recorded voltage
is less than the rated voltage for operation (+/-5%) and amp
rating, correct immediately. Refer to cabinet data plate for this
voltage requirement.
• The refrigerator/freezer should always be plugged into a
dedicated electrical circuit. This provides the best performance
and prevents building wiring circuits from being overloaded,
which could cause a fire hazard from overheated wires.
• Never unplug your refrigerator/freezer by pulling on the power
cord. Always grip plug firmly and pull straight out from the
outlet.
• When moving the refrigerator/freezer, for any reason, be careful
not to roll over or damage the power cord.
• Repair or replace immediately all power cords that have
become frayed or otherwise damaged. DO NOT use a power
cord that shows cracks or abrasion damage along its length or
at either end.
• If the supply power cord is damaged, it should be replaced with
original equipment manufacturer (OEM) components. To avoid
hazard this should be done by a licensed service provider.
Cabinet Wiring Diagram
The cabinet's wiring diagram is in the exterior servicing
compartment space of the cabinet.
A copy of the wiring diagram may also be obtained at
www. truemfg.com/support/serial-number-lookup
Fig. 1. Fully insert the power cord into
the receptacle.
Fig. 2. Push the red button to remove
the plug.
Use of Adapter Plugs
NEVER USE AN ADAPTER PLUG! An adapter plug
alters the original OEM plug configuration when
connecting it to a power source.
TRUE will not warranty any refrigerator/freezer that has been
connected to an adapter plug.
Use of Extension Cords
NEVER USE AN EXTENSION CORD! An extension
cord is determined to be any component that
adds length to the original OEM power cord when
connecting it to a power source.
TRUE will not warranty any refrigerator/freezer that has been
connected to an extension cord.
NEMA Plug Configurations
60 HZ USE ONLY!
TRUE uses these types of NEMA plugs shown. If you DO NOT have
the proper outlet, have a licensed electrician verify and install the
correct power source.
International (IEC) Plugs Only
International cabinets may be supplied with a power cord that will
require installation. Install this cord before connecting the unit to a
power source.
NOTE: International plug configurations will vary by country
and voltage
Installation
Fully seat the power cord into the cabinet receptacle until it locks
in position. See fig. 1.
Removal
Depress the red button. See fig. 2.
Electrical Installation & Safety

REFRIGERATED FOOD PREP www.truemfg.com
TEC_TM_090 | REV. C | EN12/13/2022Page 10 of 24
Cabinet Setup
Shelf
Clip
Shelf
Shelf
Pillaster
(I-beam)
Shelf
Standards
WARNING – DO NOT use pliers or
any crimping tools when installing
shelf clips. Altering shelf clips in any
way can lead to shelving instability.
Shelf Installation
Procedure
1. Hook the shelf clips into the shelf standards. See fig. 1.
2. Push up on the bottom of the clip. See fig. 2.
NOTE: You may need to squeeze or twist the bottom of the
shelf clip for proper installation. Position all four shelf clips
equal in distance from the floor for flat shelves.
3. Ensure the shelf clip is not loose or able to wiggle out of the
shelf standard. See figs. 3 and 4.
4. Place the shelves on the shelf clips with the cross support bars
facing down.
NOTE: Be sure all shelf corners are properly seated.
Installation Tips
• Install all the shelf clips before installing any shelves.
• Start at the bottom shelf and work your way up.
• Always lay the back of each shelf down on the rear clips before
the front.
Shelf Adjustment
Shelving is adjustable for customer application. This cabinet meets
the IEC Shelf Weight Capacity of 47lb/ft²(230kg/m²).
Ensuring Correct Airflow (TPP Models Only)
CAUTION - Removing baffles from the condiment pan area
will adversely affect refrigeration performance. Please leave the
baffles in their original locations. See figures below.
Fig. 1. Installing top tab of shelf clip. Fig. 2. The bottom tab of the shelf clip
will fit tightly
Fig. 3. You may need to squeeze or twist
the bottom of the shelf clip to install.
Fig. 4. Installed shelf clip..
Fig. 1. Position baffle over the holes in
the condiment pan area.
Fig. 2. Correctly positioned baffle..

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Cabinet Setup (cont.)
Drawer Removal and Installation
Drawer Style #1
Removal
1. Completely open the drawer.
2. Locate the roller clips (in down position; see figs. 1 and 2).
3. While holding the sides of the drawer, rotate the roller clips
upward. See fig. 3.
4. Lift the drawer from the channel slot. See fig. 4.
Installation
1. With the roller clips in the up position (see fig. 3), lower the
drawer’s rear rollers into the channel slots.
2. Push the drawer into position.
3. Rotate the roller clips to the down position. See figs. 1 and 2.
Drawer Style #2
Removal
4. Slide the drawer out and locate the plastic drawer retainer.
See fig. 5
5. Push the plastic drawer retainer forward and raise the front
end. See figs. 6a and 6b.
6. Remove the drawer.
Installation
1. With the plastic drawer retainer raised, align the drawer with
the slide and push the drawer into position. See figs. 6b and 7.
2. Align the drawer with the drawer slide and push the drawer
into position.
3. Press the plastic drawer retainer down and towards the back of
the cabinet. See fig. 7.
4. Verify correct drawer operation.
Fig. 1. Roller clip location. Fig. 2. Roller clip in down position.
Fig. 3. Rotate the roller clip upward Fig. 4. Lift and remove drawer.
Fig. 5. Drawer retainer location.
Retainer is engaged.
Fig. 6b. Push the back of the
retainer down.
Fig. 7. Align the drawer with the drawer
slide.
Fig. 6a. Push the retainer forward.

REFRIGERATED FOOD PREP www.truemfg.com
TEC_TM_090 | REV. C | EN12/13/2022Page 12 of 24
Cabinet Operation
FOR MORE INFORMATION
For more information regarding a cabinet's temperature control adjustment or general sequence of operation,
please see our Temperature Control Adjustment—Sequence of Operation Manual in our resource library at
https://www.truemfg.com/Service-Manuals/Sequence-of-Operation or follow the QR code.
Startup
• The compressor is ready to operate when the unit is purchased.
All you need to do is plug in the cooler.
• Excessive tampering with the control could lead to service
difficulties. If replacing the temperature control is ever needed,
be sure to order the replacement from your TRUE dealer or
recommended service agent.
• Good air flow inside your TRUE unit is critical. Take care to
prevent product from pressing against the sides or back
wall and coming within 4" (101.6 mm) of the evaporator
housing. Refrigerated air off the evaporator coil must circulate
throughout the cabinet for even product temperatures.
NOTE: If the unit is disconnected or shut off, wait 5 minutes
before restarting.
RECOMMENDATION – Before loading product, run your TRUE
unit empty for 24 hours to verify proper operation. Remember,
our factory warranty DOES NOT cover product loss!
Electronic Temperature Control with Digital Display
On the front of countertop.
Light Switch on Glass Door Models
Top horizontal door opening.
Mechanical Temperature Control
Inside back corner.
Electronic Temperature Control without Display
Behind cap on back panel.
Temperature Control & Light Switch Location
The light symbol shows the approximate location of the light
switch.
The light switch location depends on the TUC/TWT glass door
models. Typically, the light switch is located above the door inside
the unit and next to the light on the ceiling.
ECO°C
°F

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Cabinet Operation (cont.)
Mechanical Temperature Control
Inside right wall.
Electronic Temperature Control with Digital Display
On the front of the grill.
Electronic Temperature Control with Digital Display
On the front of the grill.
Electronic Temperture Control without Display
Behind the front grill.
Refrigerator and Freezer Cabinets
When the cabinet is plugged in
• Interior lights will illuminate on glass door models (see
previous page for light switch location).
• An electronic control with digital display will illuminate (if
installed).
• There may be a short delay before the compressor and/
or evaporator fan(s) start. This delay may be determined
by time or by temperature, which could be the result of an
initial defrost event that will last at least 6 minutes.
• The temperature control/thermostat may cycle the
compressor and evaporator fan(s) on and off together. Every
cabinet will require a defrost event to ensure the evaporator
coil remains clear of frost and ice buildup. Defrost is initiated
by a defrost timer or by the electronic control.
EXCEPTION – Models TSID, TDBD, TCGG, and TMW do
not have an evaporator fan(s).
• The temperature control/thermostat senses either an
evaporator coil temperature or air temperature, NOT product
temperature.
• An analog thermometer, digital thermometer, or electronic
control display may reflect the refrigeration cycle swings
of up and down temperatures, NOT product temperature.
The most accurate method to determine a cabinet's
operation is to verify the product temperature.
• Refrigerators with mechanical temperature controls will
defrost during every compressor off-cycle.
• Freezers with mechanical temperature controls will defrost
by time initiation as determined by a defrost timer.
EXCEPTION – Models TFM, TDC, THDC and TMW
require a manual defrost. The frequency of this manual
defrost will depend on the cabinet's usage and ambient
conditions.
• An electronic control with a digital display (if installed) will
show def during defrost.
NOTE: The display may have a short delay before
showing a temperature after a defrost event has expired
and instead show def during a refrigeration cycle.
• Models with an analog or digital thermometer may show
higher than normal temperatures during defrost.
• A refrigerator will use the evaporator fans to clear the coil
during defrost.
EXCEPTION – Models TSID, TDBD, and TCGG do not have
an evaporator fan(s).
• A freezer will use heaters to clear the evaporator coil during
defrost.
NOTE: The evaporator coil heater and drain tube heater
are only energized during defrost. Defrost is terminated
when a specific evaporator coil temperature is reached or
by a time duration.
Model(s): TPP, TUC, TWT (Deep Undercounter or
Worktop Models)
ECO°C
°F
ECO°C
°F

REFRIGERATED FOOD PREP www.truemfg.com
TEC_TM_090 | REV. C | EN12/13/2022Page 14 of 24
Maintenance, Care & Cleaning
CAUTION - Take care during operation, maintenance or repairs
to avoid cuts or pinching from any cabinet part/component.
Condenser Coil Cleaning
When using electrical appliances, basic safety precautions should
be followed, including the following:
WARNING – DO NOT clean appliance with a
pressure washer or hose.
CAUTION – Fins are sharp. Caution must be used to
avoid eye injury. Eye protection is recommended.
Tools Required
• Phillips screwdriver OR
• 1/4" nut driver
• Stiff bristle brush
• Tank of compressed air
• Vacuum cleaner
• Flashlight
• Eye protection
1. Disconnect power to unit.
2. Access the condenser coil.
TPP & TUC/TWT-44/67/93
Open the grill assembly door. See fig. 1.
TFP/TSSU/TUC/TWT
Remove the rear cover (see fig. 2). Screw locations will vary
by model.
3. Carefully clean off accumulated dirt from the front fins of the
condensing coil with a stiff bristle brush. See fig. 3.
4. With dirt removed from the surface of the coil, use a flashlight
to verify that you can see through the coil and observe the
condenser fan blade spinning. See fig. 4.
If the view is clear, reinstall the cover (if so equipped),
connect unit to power and verify operation.
If the view is still blocked with dirt, for TPP and
TUC/TWT-44/67/93 units proceed to step 5. For all other
units proceed to step 7.
Fig. 1. Open the grill assembly door (TPP & TUC/TWT-44/67/93).
Fig. 3. Never brush across the coil fins.
Fig. 4. Verify all blockages have been removed.
Fig. 5. Remove condenser brackets if so equipped.
Fig. 2. Remove rear cover screws (TFP/TSSU/TUC/TWT).

REFRIGERATED FOOD PREP
TEC_TM_090 | REV. C | EN 12/13/2022 Page 15 of 24
www.truemfg.com
Maintenance, Care & Cleaning (cont.)
Important Warranty Information
THE CLEANING OF THE CONDENSER IS NOT COVERED BY
WARRANTY!
If you have any questions, please contact your local TRUE
Manufacturing Service Department. See the front cover for
locations and contact information.
• Condenser coils accumulate dirt and require cleaning every 30
days or as needed.
• A dirty condenser coil can result in non-warranteed repairs and/
or cabinet failure.
• Proper cleaning involves removing dust from the condenser by
using a soft brush, vacuuming the condenser with a shop vac,
or using CO₂, nitrogen or pressurized air.
• Do not place any filter material in front of the condensing coil.
• On most units, the condenser is accessible by removing the
cabinet's outer grill cover.
• If you cannot remove the dirt adequately, please contact your
licensed refrigeration service provider.
Cleaning the Condenser Coil (cont.)
5. Remove the condenser coil brackets. See fig. 5.
6. Carefully slide the condensing unit out (tubing connections
are flexible). See fig. 6.
7. Gently blow compressed air or CO₂ through the coil until it is
clean.
8. Carefully vacuum any dirt around and behind the condensing
unit area.
9. Carefully slide the compressor assembly back into position and
replace the bolts. See fig. 7.
10. Reinstall the rear cover (if so equipped), connect power to the
unit, and verify correct operation.
Fig. 6. Carefully slide the condensing
unit out.
Fig. 7. Carefully slide the condensing
unit back into position and replace bolts
and coil brackets.
Drain Line Cleaning
Required Tools
Required tools include (but may not be limited to) the following:
• Phillips Screwdriver or Bit Driver
• Drill (optional)
• Tube Brush* (see fig. 1)
• Large Container
*Tube brush must fit in 1/2” (12.7 mm) I.D. drain hose.
Procedure
WARNING! Slippery surface hazard.
To prevent slippery surfaces, clean the clogged hose
over a large container. See fig. 2.
1. Remove the rear cover.
2. Access the end of the clogged drain line.
NOTE: If applicable, DO NOT cut cable ties. Use the cable
release tab (see fig. 3). Remove drain fittings as needed to
access clog.
3. Withx a narrow tube brush, clear the clog from the drain line.
See figs. 1 and 2.
Fig. 2. Catch trapped liquid in a large container.
Fig. 1. Narrow tube brush.
Fig. 3. Cable tie release tab location.

REFRIGERATED FOOD PREP www.truemfg.com
TEC_TM_090 | REV. C | EN12/13/2022Page 16 of 24
Maintenance, Care & Cleaning (cont.)
Stainless Steel Care & Cleaning
CAUTION – DO NOT use any steel wool, abrasive or chlorine-
based products to clean stainless steel surfaces.
Stainless Steel Opponents
There are three basic things which can break down your stainless
steel’s passivity layer and allow corrosion to form.
• Scratches from wire brushes, scrapers, steel pads, and other
items that can be abrasive to stainless steel’s surface.
• Deposits left on your stainless steel can leave spots. You may
have hard or soft water depending on what part of the country
you live in. Hard water can leave spots. Hard water that is
heated can leave deposits if left to sit too long. These deposits
can cause the passive layer to break down and rust your
stainless steel. All deposits left from food prep or service should
be removed as soon as possible.
• Chlorides which are present in table salt, food and water, as well
as in household and industrial cleaners. These are the worst
type of chlorides to use on stainless steel.
Stainless Steel Cleaning and Restoration
DO NOT use stainless steel cleaners or similar solvents to clean
plastic or powder-coated parts. Instead, use warm soapy water.
• For routine cleaning and removal of grease and oil, apply white
vinegar, ammonia, or any good commercial detergent* with a
soft cloth or sponge.
• Stainless steel polish (e.g., Zep® Stainless Steel Polish, Weiman®
Stainless Steel Cleaner & Polish, Nyco® Stainless Steel Cleaner
& Polish, or Ecolab® Ecoshine®) and olive oil can act as a barrier
against fingerprints and smears.
• Degreasers* (e.g., Easy-Off® Specialty Kitchen Degreaser or
Simple Green® Industrial Cleaner & Degreaser) are excellent for
removal of grease, fatty acids, blood and burnt-on foods on all
surfaces.
* DO NOT use detergents or degreasers with chlorides or phosphates.
• For restoration/passivation or removing stubborn stains and
discoloration, Brillo® Cameo®, Zud® Cleanser, Ecolab® Specifax™
First Impression® Metal Polish, Sheila Shine, or talc can be
applied by rubbing in the direction of the polish lines.
NOTE: The use of proprietary names is intended for example
only and does not constitute or imply an endorsement.
Omission of proprietary cleansers from this list does not imply
inadequacy.
8 Tips to Help Prevent Rust on Stainless Steel
Maintain the Cleanliness of Your Equipment
Avoid build-up of hard stains by cleaning frequently. Use
cleaners at the recommended strength (alkaline chlorinated or
non-chloride).
Use the Correct Cleaning Tools
Use non-abrasive tools when cleaning your stainless steel products.
The stainless steel’s passive layer will not be harmed by soft cloths
and plastic scouring pads.
Clean Along Polishing Lines
Polishing lines ("grain") are visible on some stainless steels. Always
scrub parallel to polishing lines when visible. Use a plastic scouring
pad or soft cloth when you cannot see the grain.
Use Alkaline, Alkaline-Chlorinated or Non-Chloride
Cleaners
While many traditional cleaners are loaded with chlorides, the
industry is providing an ever increasing choice of non-chloride
cleaners. If you are not sure of your cleaner’s chloride content,
contact your cleaner supplier. If they tell you that your present
cleaner contains chlorides, ask if they have an alternative.
Avoid cleaners containing quaternary salts, as they can attack
stainless steel, causing pitting and rusting.
Rinse
When using chlorinated cleaners, you must rinse and wipe dry
immediately. It is better to wipe standing cleaning agents and
water as soon as possible. Allow the stainless steel equipment to
air dry. Oxygen helps maintain the passivity film on stainless steel.
Never Use Hydrochloric Acid (Muriatic Acid) on
Stainless Steel
Even diluted, hydrochloric acid can cause corrosion, pitting and
stress corrosion cracking of stainless steel.
Water Treatment
To reduce deposits, soften hard water when possible. Installation
of certain filters can remove corrosive and distasteful elements.
Salts in a properly maintained water softener can also be to your
advantage. Contact a treatment specialist if you are not sure of the
proper water treatment.
Regularly Restore & Passivate Stainless Steel
Stainless steel gets its stainless properties from the protective
chromium oxides on its surface. If these oxides are removed by
scouring, or by reaction with harmful chemicals, then the iron in
the steel is exposed and can begin to oxidize, or rust. Passivation is
a chemical process that removes free iron and other contaminants
from the surface of stainless steel, allowing the protective
chromium oxides to re-form.

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TEC_TM_090 | REV. C | EN 12/13/2022 Page 17 of 24
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Maintenance, Care & Cleaning (cont.)
Lid Maintenance
The lid pin screws are designed to be removed for cleaning.
Remember to periodically check the screws and ensure they are
tight. See lid pin screw locations below (figs. 1-4).
Fig. 1. TSSU (inside).
Fig. 3. T PP.
Fig. 2. TSSU (outside).
Fig. 4. TPP.
Composite Cutting Board Maintenance
Please see the message from Richlite®regarding composite cutting
boards material and preventing warping.
To prevent warping on cutting boards manufactured by
Richlite® material, simply turn the board over on a regularly
scheduled basis. Warping is caused by continued moisture and
temperature differences on the top and bottom of the boards.
By turning the board over, this will allow both sides of the
board to receive the same exposure.
There is a chance that larger sized boards may warp as a
characteristic of the material.

REFRIGERATED FOOD PREP www.truemfg.com
TEC_TM_090 | REV. C | EN12/13/2022Page 18 of 24
Maintenance, Care & Cleaning (cont.)
False Bottom Panel Removal/Installation (TFP/TSSU)
Removal Installation
False bottom panes, located underneath the product pans, are
removable for cleaning and sanitizing. These panels must be
installed for correct cabinet operation and product temperatures.
NOTE: The quantity of panels varies by model. Not all
components shown in the following images are used in all
applications.
False bottom baffle
Non-Mega Single Door Units
With product removed, tilt the panel and pull it forward.
Non-Mega Two & Three-Door Units
1. Remove or loosen the false bottom baffle..
2. With the top product removed, tilt and lift the panels from
the top.
Mega Units
With the top product pans removed, tilt and lift the panel from
the top.
NOTE: When reinstalling the false bottom panels, be sure the
vertical bend is positioned at the front of the cabinet and facing up.
Mega & Non-Mega Two & Three-Door Units
1. Position the bottom support with the rear tabs seated in the
correct slots in the top of the shelf bracket.
2. If so equipped, be sure to reinstall the false bottom baffle.
3. Position the panels.
False Bottom Panels
Non-Mega Single Door Units
Perform the reverse procedure of removal.

REFRIGERATED FOOD PREP
TEC_TM_090 | REV. C | EN 12/13/2022 Page 19 of 24
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Cabinet Adjustments, Servicing, & Component Replacement
NOTE: Any cabinet adjustments are to be made AFTER the
cabinet has been verified level and properly supported.
Servicing & Replacing Components
• Replace component parts with original equipment
manufacturer (OEM) components.
• Have a licensed service provider service your unit to minimize
the risk of possible ignition due to incorrect parts or improper
service and to ensure the operator’s health and safety.
• Unplug the refrigerator/freezer before cleaning or making
any repairs. Setting temperature controls to the 0 position or
powering off an electronic control may not remove power
from all components (e.g., light circuits, perimeter heaters, and
evaporator fans).

REFRIGERATED FOOD PREP www.truemfg.com
TEC_TM_090 | REV. C | EN12/13/2022Page 20 of 24
Cabinet Adjustments, Servicing, & Component Replacement
Reversing Door
(TUC/TWT-24/24F & TSSU/TUC/TWT-27/27F)
Required Tools
Required tools include (but may not be limited to) the following:
• 1/4” Socket • 1/4” Combo Wrench
• 5/16” Socket • Phillips Screwdriver
• 3/8” Socket (27/27F) • Hammer
• 7/16” Socket (24/24F) • Putty Knife
• Ratchet
Procedure
1. With a socket, remove the lower hinge bracket from the
cabinet (fig. 1). Then, remove the door.
NOTE: Required socket varies by model size. See the
required tools list for details. Take care to not snap the
upper hinge bushing (fig. 2).
2. Move the front grill to the opposite side
(TUC/TWT-24/24F models only)
a. With a Phillips screwdriver, unscrew the front grill.
b. With a 7/16” socket, move the bolts (fig. 3) to the opposite
side.
c. . Shift the grill to the side. See fig. 4.
d. Align the grill with the pre-drilled hole, and then secure it.
3. Remove the cartridge hinge assembly from the door. See fig. 5.
4. With a putty knife, pry the square bushing from the door. Then,
with a hammer, tap the bushing into the cartridge hinge’s
original location.
NOTE: When repositioning the bushing, gently tap it to
prevent damage.
Fig. 1. The 24 and 27 models use different lower hinges.
Fig. 2. Do not snap the bushing on the top hinge.
Fig. 3. TUC/TWT-24/24F ONLY: Move the front grill to the opposite side.
Fig. 4. Move the bolts to the lower
hinge bracket’s original location.
Fig. 5. Remove the cartridge hinge
assembly.
24" Models 27" Models