True TOAM-48GS-HC~TSL01 User manual

TEC_TM_012 REV. B 09/25/2020 Page 1 of 20
OPEN AIR MERCHANDISER
INSTALLATION MANUAL
Congratulations!
You have just purchased the finest commercial refrigerator
available. You can expect many years of trouble-free operation.
Table of Contents
Safety Information
Safety Precautions & Proper Disposal......................................................3
Installation
Ownership, Location, Wire Gauge Chart ................................................4
Recommended Operating Conditions....................................................5
Uncrating............................................................................................................6
Leveling...............................................................................................................7
Sealing Cabinet to the Floor .......................................................................8
Connecting Electricity ...................................................................................9
Cabinet Setup
Shelving...........................................................................................................10
Shelf Light Installation, Price Strip.........................................................11
Night Cover ....................................................................................................12
Cabinet Operation
Startup..............................................................................................................13
Sequence of Operation..............................................................................14
Maintenance, Care & Cleaning
Cleaning the Condenser Coil...................................................................15
Stainless Steel Equipment Care & Cleaning .......................................17
Cabinet Adjustments
Condensate Pan Drain Connection .......................................................18
Servicing and Replacement Components ..........................................18
Warranty
Warranty ..........................................................................................................19
TRUE MANUFACTURING CO., INC.
North America – Canada
and Caribbean
Warranty Phone: [phone]
Warranty Fax: [phone]
Technical Phone: [phone]
Warranty Email:
warranty[email protected]
Technical Email:
[email protected]
7:00 – 7:00 CST Monday – Thursday.
7:00 – 6:00 Friday. 8:00 – 12:00 Saturday.
Mexico
Phone: [phone]
Toll Free in Mexico: 01 800 202 0687
service-mexicocit[email protected]
9:00 am – 5:30 pm M–F
Latin America
Phone: [phone]
[email protected]
9:00 am – 5:30 pm M–F
UK, Ireland, Middle East,
Africa and India
Phone: [phone]
service-[email protected]
8:30 am – 5:00 pm M–F
European Union and
Commonwealth of
Independent States
Phone: [phone]
service-[email protected]
8:00 am – 5:00 pm M–F
Australia
Phone: [phone]
[email protected]
8:30 am – 5:00 pm M–F
INSTALLATION MANUAL
OPEN AIR MERCHANDISER
Original Instructions
TRUE MANUFACTURING CO., INC.
2001 East Terra Lane • O’Fallon, Missouri 63366-4434
(636)-240-2400 • FAX [phone] • International FAX [phone] • (800)-325-6152
Parts Department (800)-424- TRUE • Parts Department FAX# [phone]
TOAM-48GS-HC~TSL01
TOAM-72-HC~TSL01

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TEC_TM_012 REV. B09/25/2020Page 2 of 20
NOTES

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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

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TEC_TM_012 REV. B09/25/2020Page 4 of 20
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.
• 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
TOAM 8" (204 mm) 0" (0 mm) 3" (77 mm)
WARNING – Warranty is void if ventilation is insufficient.
Prior to Installation

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• Do not place in direct sunlight.
• No HVAC supply or return air vents pushing air into or pulling
air out of the cabinet.
• No ceiling fans.
• No doorways.
• Make sure cabinet is level from front-to-back and side-to-side.
NOTE: Check for correct clearance in back of and above the
cabinet. A 3" (77 mm) clearance is required at the rear of the
cabinet and 8" (204 mm) clearance above the cabinet.
• Maximum ambient conditions 75°F (24°C) or as indicated on
the serial label, and 55% relative humidity.
• Place cabinet in an area that will not have any air drafts.
• Excessive airflow around cabinet can effect interior cabinet
airflow (air-curtain).
Recommended Operating Conditions
Installation (cont.)
* Or as indicated on the serial label.
3 inches
77 mm
8 inches / 204 mm
A
I
R
F
L
O
W
≤ 75ºF
≤ 23ºC
≤ 55%

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Installation (cont.)
Uncrating
Tools Required
• Adjustable wrench
• 3/4" socket wrench
• 1/4" socket wrench
• 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: Move the unit as close as possible to the final
location before removing the wooden skid.
2. With an adjustable wrench, remove all shipping bolts securing
the wood skid to the bottom of the cabinet. See fig. 2.
NOTE: Some models may require removing the front and/
or rear grill to access the shipping bolts. See figs. 3 and 4.
Remove the grills with a 1/4" socket wrench, if so equipped.
3. Install the included leveling legs (see Installing Standard
Leveling Legs), optional 6" leveling legs or castors (see Installing
Optional 6" Leveling Legs or Castors), if so equipped.
NOTE: With the shipping bolts removed, rotate the cabinet
on the skid to gain access.
If leveling legs or castors are not to be used, remove the
cabinet from the wooden skid. Place the skid to the side.
NOTE: When lifting the unit, do not use countertops, doors/
drawers, or grills as a lifting point. Also, 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. 1. Remove the outer packaging.
Fig. 3. Remove the screws. Pull the front grill to release it from the magnetic brackets.
Fig. 4. Remove the screws and detach the rear grill.Fig. 2. Remove the skid bolts on the front and back.

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Installation (cont.)
Installing Standard Leveling Legs
Leveling legs are provided to assist with the leveling of the cabinet.
1. Access the bottom of the cabinet and locate the
leveling legs.
2. The leveling legs may be threaded in or out to
achieve a level and supported cabinet.
See fig. 1 and 2.
Installing Optional 6" Leveling Legs or Castors
Optional adjustable legs will provide 6" (152 mm) of clearance
under the cabinet. Optional castors will provide cabinet mobility.
Tools Required
• Adjustable Wrench
• Castor wrench (optional)
6" Leveling Legs
1. Access the bottom of the cabinet by carefully laying it on
its back. Locate and remove the leveling legs from the 1/2"
threaded inserts. See fig. 3.
2. Screw in the leveling legs. See fig. 4.
3. Verify that the cabinet is level. If the cabinet is not level,
gently lift and support the low end of the cabinet. Using an
adjustable wrench, screw the bottom stem of the leveling leg
in or out to level and support the cabinet. See fig. 5.
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 figs. 7 and 8.
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.
WARNING – Units may pose a tipping hazard
while uncrating, during installation, or when
moving the unit.
Fig. 1. Turn the leveling legs clockwise
to lower the unit. Fig. 2. Turn the leveling legs
counterclockwise to raise the unit.
Rail End
Snug Fit
Here
Leg
Lower Rail
Assembly
Bottom Stem
Fig. 5. Turn the bottom stem to level the
cabinet.
Fig. 6. Loosen castor bolt.
Fig. 8. Position multiple shims at
90˚ angles.
Fig. 7. Install shim(s).
Fig. 3. Locate the threaded hole in the
rail.
Fig. 4. Screw in the leveling legs.
Leveling Shim
Lower Rail Assembly
Bearing Race
Snug Fit Here
Rail End
Castor
Castor Stem
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.

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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.
Level the unit front-to-back and side-to-side.
1. Position the level on the inside floor of the unit (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.
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 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

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Installation (cont.)
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
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.
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.
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.
Electrical Installation & Safety

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Cabinet Setup
Shelving Installation
NOTE: For ease of installation, it is recommended that the
lower shelf be installed first.
1. Install the shelf brackets into the shelf standards.
a. Position the shelf bracket in front of the shelf standard.
Raise the front of the bracket up at a 45° angle, to allow
the bracket support tab to slide into the slot in the shelf
standard. See fig. 1.
b. Slide the shelf angle adjustment tab into the shelf standard.
Position the tab in the shelf bracket to support the shelf at
the desired angle.
c. Repeat a. and b. for the shelf bracket on the other side.
2. Install the shelves onto the shelf brackets.
a. Position the shelf on the shelf brackets. The horizontal
bends on the left and right sides of the shelf should be to
the outside of the brackets.
b. Move the back of the shelf up and back until the front of the
shelf clears the shelf support tab on the shelf bracket.
See fig. 2.
c. Once the shelf has cleared the shelf support tab, slide the
shelf forward until the front of the shelf is under the front
shelf support tab. When installed correctly, the shelf will be
supported between the notched areas in the shelf brackets.
See fig. 3.
d. Repeat a, b and c for additional shelves.
Shelf Adjustments
Shelving is adjustable for customer application. This cabinet meets
the IEC Shelf Weight Capacity of 47lb/ft2 (230kg/m2).
Shelf Standard
Angle Adjustment Tab
Bracket Support
Tab
Shelf Support Tab
Fig. 3. Correct shelf installation
Fig. 2. Install the shelves
Fig. 1. Install the shelf brackets.
WARNING – Remember to follow the guidelines below when
loading product.
• When loading, product may NOT block the air flow from the
top (honeycomb) or at the bottom (stainless steel evaporator
cover).
• Product may NOT extend over the front edge of the shelves.

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Cabinet Setup (cont.)
Shelf Light Installation
1. Locate the LED power cord protruding from the inner back
wall. See fig.1.
2. Gently pull the power cord and route it to the LED module,
located under the front lip of the shelf. See fig. 2.
3. Insert the power cord into the LED module. See fig. 3.
4. Secure the power cord to the J-clip retainer on the shelf
bracket. See fig. 4.
Price Strip Installation
1. Holding the price strip and looking down its length from one
end, notice the larger (top) opening, and the smaller (bottom)
opening. See fig.1.
2. Position the price strip across the front of the shelf, with the
large opening at the top and the smaller opening snapped
over the bottom edge of the shelf. See fig. 2.
3. Snap the top of the price strip over the top of the shelf.
See fig. 3. Price tags can now be inserted into the channel in
the price strip.
Fig. 1. Locate the LED power cord.
Fig. 1. The large and small openings in the price strip.
Fig. 2. Proper positioning of the shelf strip during installation.
Fig. 3. Correct installation of the price strip.
Fig. 2. Route the power cord to the LED module.
Fig. 3. Insert the power cord into the LED module.
Fig. 4. Secure the power cord.
Large opening
Small opening

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Cabinet Setup (cont.)
Night Cover Operation
NOTE: It is recommended that the night cover be used
during overnight or extended off-peak business times to
conserve energy.
1. Locate the night cover handle on the inner front product floor.
See fig. 1.
2. Pull the night cover toward the top of the product opening.
See fig. 2.
3. Secure the night cover in place by placing the handle on the
hook at the top of the product opening. See fig. 3.
4. To lower the night cover, lift the handle off the hook and
gently guide the night cover down, keeping tension on the
night cover and allowing it to retract into the product floor.
WARNING – Do not release the night cover handle from your
hand until the cover is completely retracted.
Fig. 1. Locate the night cover handle.
Fig. 3. Secure the cover in place.Fig. 2. Pull the handle toward the top of the product
opening.

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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!
Temperature Control & Light Switch Location
The light symbol shows the approximate location of the light
switch.
Cabinet Operation
FOR MORE INFORMATION
For more information regarding a cabinets general sequence of operation, including
basic temperature control adjustments, please visit our website:
www.truemfg.com/support/resource-library
Electronic Temperature Control
Behind the front grill OR through the
front grill.
ECO°C
°F
Light Switch
In front of the top air flow honeycomb..

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Cabinet Operation (cont.)
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.

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Maintenance, Care & Cleaning
CAUTION - Take care during operation, maintenance or repairs
to avoid cuts or pinching from any cabinet part/component.
Cleaning the Condenser Coil
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
• 1/4" nut driver
• 3/8" nut driver
• Stiff bristle brush
• Tank of compressed air
• Vacuum cleaner
• Flashlight
• Eye protection
1. Disconnect power to unit.
2. Remove the screw securing the louvered grill to the cabinet.
See fig. 1.
3. Pull on the grill assembly to release it from the magnetic
brackets. See fig. 2.
4. Carefully clean off accumulated dirt from the front fins of the
condensing coil with a stiff bristle brush. See fig. 3.
5. 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 louvered grill, connect unit to
power and verify operation.
If the view is still blocked with dirt, proceed to step 6.
Fig. 1. Remove the screw securing the front grill.
Fig. 2. Remove the grill.
Fig. 3. Clean the condensing coil.
Fig. 4. Verify that the coil is clean.

TOAM | OPEN AIR MERCHANDISER truemfg.com
TEC_TM_012 REV. B09/25/2020Page 16 of 20
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.
Fig. 5. Remove the bolts securing the condenser base.
Fig. 6. Rotate the condensing unit to the left.
Fig. 7. Replace the condenser assembly.
Cleaning the Condenser Coil (cont.)
6. Remove the condenser base bolts. See fig. 5.
7. Rotate the front of the condensing unit to the left to allow the
compressor to clear the condensate drain hose fitting.
See fig.6.
8. Carefully slide the condensing unit out (tubing connections are
flexible). Gently blow compressed air or CO₂ through the coil
until it is clean.
9. Carefully vacuum any dirt around and behind the condensing
unit area.
10. Carefully slide the compressor assembly back into position and
replace the bolts. See fig. 7.
11. Reinstall the louvered grill, connect power to the unit, and
verify operation.
Drain hose fitting.

TOAM | OPEN AIR MERCHANDISER
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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_012 REV. B09/25/2020Page 18 of 20
Cabinet Adjustments, Servicing & Component Replacement
FOR MORE INFORMATION
For additional maintenance instruction, please visit the media center at
www.truemfg.com
Servicing & Replacing Components
• Replace component parts with OEM (original equipment
manufacturer) 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).
NOTE: Any cabinet adjustments are to be made AFTER the
cabinet has been verified level and properly supported.
Use of Adapter Plugs
When operating the cabinet outside of the recommended
operating conditions, the condensate drain pan(s) may over-fill
with water. If this happens, it may be necessary to connect the
condensate drain pan(s) to an existing floor drain (if available on
location) or install optional electric heated condensate pan(s).
Cabinet size may determine whether one, two, or three condensate
pans are used. Follow the steps below for each condensate pan.
Routing Excess Condensation to a Floor Drain
1. Gain access to the rear of the cabinet and disconnect power to
the cabinet.
2. Remove the rear wire grill. See fig. 1.
3. Locate the 45° fitting, located at the top of the condensate
pan. Connect a 1/2" (12.7 mm) i.d. vinyl hose to the fitting.
4. Route the drain hose either under the cabinet or through the
wire grill, and then to the floor drain.
5. Reinstall the wire grill.
6. Restore power to the cabinet.
Hose Fitting
Fig. 1. Back of cabinet with wire grill removed.

TOAM | OPEN AIR MERCHANDISER
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This warranty only applies to units installed after January 1, 2020 for USA Foodservice & Retail and after July 1, 2020 for Canada.
THREE-YEAR PARTS &LABOR WARRANTY
ADDITIONAL TWO-YEAR HFC COMPRESSOR WARRANTY AND ADDITIONAL FOUR-YEAR HYDROCARBON COMPRESSOR WARRANTY
404A/134A/HYDROCARBON COMPRESSOR WARRANTY
WARRANTY CLAIMS
WHAT IS NOT COVERED BY THIS WARRANTY
ENVIRONMENTAL ATTRIBUTES
TRUE warrants to the original purchaser of every new TRUE refrigerated unit, the cabinet and all parts thereof, to be free from defects in material or workmanship, under normal
and proper use and maintenance service as specied by TRUE and upon proper installation and start-up in accordance with the instruction packet supplied with each TRUE unit. TRUE’s
obligation under this warranty is limited to a period of three (3) years from the date of original installation or 39 months after shipment date from TRUE, whichever occurs rst.
Any part covered under this warranty that is determined by TRUE to have been defective within three (3) years of original installation or thirty-nine (39) months after shipment date
from manufacturer, whichever occurs rst, is limited to the repair or replacement, including labor charges, of defective parts or assemblies. The labor warranty shall include standard
straight time labor charges only and reasonable travel time, as determined by TRUE.
Warranty does not cover standard wear parts which include door gaskets, incandescent bulbs or uorescent bulbs. Warranty also does not cover issues caused by improper
installation or lack of basic preventative maintenance, which includes regular cleaning of condenser coils.
In addition to the Three (3) year warranty stated above, TRUE warrants its hermetically and semi-hermetically sealed HFC compressor to be free from defects in both material
and workmanship under normal and proper use and maintenance service for a period of two (2) additional years and for Hydrocarbon Units, an additional four (4) years from the date of
original installation but not to exceed ve (5) years and three (3) months for HFC compressors and not to exceed seven (7) years and three (3) months for HC compressors after shipment
from the manufacturer.
Compressors determined by TRUE to have been defective within this extended time period will, at TRUE’s option, be either repaired or replaced with a compressor or compressor
parts of similar design and capacity.
The two (2) year extended HFC or four (4) year HC extended compressor warranty applies only to hermetically and semi-hermetically sealed parts of the compressor and does
not apply to any other parts or components, including, but not limited to: cabinet, paint nish, temperature control, refrigerant, metering device, driers, motor starting equipment, fan
assembly or any other electrical component, etcetera.
The two (2) year HFC compressor and four (4) year HC compressor warranty detailed above will be voided if the following procedure is not carefully adhered to:
1. This system contains R404A, R134A, or R290 refrigerant and polyol ester lubricant. The polyol ester lubricant has rapid moisture absorbing qualities. If long exposure to the ambient
conditions occur, the lubricant must be removed and replaced with new. For oil amounts and specications please call TRUE technical service department (855-372-1368). Failure to
comply with recommended lubricant specication will void the compressor warranty.
2. Drier replacement is very important and must be changed when a system is opened for servicing. An OEM exact replacement should be used. The new drier must also be the same
capacity as the drier being replaced.
3. Micron level vacuums must be achieved to ensure low moisture levels in the system. 500 microns or lower must be obtained.
All claims for labor or parts must be made directly through TRUE. All claims should include: model number of the unit, the serial number of the cabinet, proof of purchase, date of
installation, and all pertinent information supporting the existence of the alleged defect.
In case of warranty compressor, a picture of the compressor model tag must be returned to TRUE along with above listed information. For warranty claim information, visit www.
truemfg.com/Support/Warranty-Support. Any action for breach of these warranty provisions must be commenced within six (6) months of the defect giving rise to the breach.
True reserves the right to request any failed part covered under warranty to be returned.
TRUE’s sole obligation under this warranty is limited to either repair or replacement of parts, subject to the additional limitations below. This warranty neither assumes nor authorizes any
person to assume obligations other than those expressly covered by this warranty.
NO CONSEQUENTIAL DAMAGES. TRUE IS NOT RESPONSIBLE FOR ECONOMIC LOSS; PROFIT LOSS; OR SPECIAL, INDIRECT, OR CONSEQUENTIAL DAMAGES, INCLUDING WITHOUT LIMITATION,
LOSSES OR DAMAGES ARISING FROM FOOD OR PRODUCT SPOILAGE CLAIMS WHETHER OR NOT ON ACCOUNT OF REFRIGERATION FAILURE.
WARRANTY IS NOT TRANSFERABLE. This warranty is not assignable and applies only in favor of the original purchaser/user to whom delivered. ANY SUCH ASSIGNMENT OR TRANSFER
SHALL VOID THE WARRANTIES HEREIN MADE AND SHALL VOID ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
IMPROPER USAGE. TRUE ASSUMES NO LIABILITY FOR PARTS OR LABOR COVERAGE FOR COMPONENT FAILURE OR OTHER DAMAGES RESULTING FROM IMPROPER USAGE OR INSTALLATION OR
FAILURE TO CLEAN AND/OR MAINTAIN PRODUCT AS SET FORTH IN THE WARRANTY PACKET PROVIDED WITH THE UNIT.
RELOCATION OF CABINET FOR REPAIR. True is not responsible for the cost to move a cabinet for any reason from its position of operation on the customer’s premises to make a warranty repair.
NON OEM PARTS. Use of non OEM parts without manufacturer’s approval will void cabinet warranty.
ALTERATION, NEGLECT, ABUSE, MISUSE, ACCIDENT, DAMAGE DURING TRANSIT OR INSTALLATION, FIRE, FLOOD, ACTS OF GOD. TRUE is not responsible for the repair or replacement of any
parts that TRUE determines have been subjected after the date of manufacture to alteration, neglect, abuse, misuse, accident, damage during transit or installation, re, ood, or act of God.
IMPROPER ELECTRICAL CONNECTIONS. TRUE IS NOT RESPONSIBLE FOR THE REPAIR OR REPLACEMENT OF FAILED OR DAMAGED COMPONENTS RESULTING FROM INCORRECT SUPPLY VOLTAGE,
THE USE OF EXTENSION CORDS, LOW VOLTAGE, OR UNSTABLE SUPPLY VOLTAGE.
NO IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE: THERE ARE NO OTHER WARRANTIES, EXPRESSED, IMPLIED OR STATUTORY, EXCEPT THE THREE
(3) YEAR PARTS & LABOR WARRANTY AND THE ADDITIONAL TWO (2) YEAR HFC COMPRESSOR AND THE ADDITIONAL FOUR (4) YEAR HC COMPRESSOR WARRANTY AS DESCRIBED ABOVE. THESE
WARRANTIES ARE EXCLUSIVE AND IN LIEU OF ALL OTHER WARRANTIES, INCLUDING IMPLIED WARRANTY AND MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. THERE ARE NO
WARRANTIES WHICH EXTEND BEYOND THE DESCRIPTION ON THE FACE HEREOF.
OUTSIDE U.S. AND CANADA: This warranty does not apply to, and TRUE is not responsible for, any warranty claims made on products sold or used outside the United States and Canada.
This warranty only applies to units shipped from True’s manufacturing facilities after October 1, 2019 for US Foodservice & Retail and after July 1, 2020 for Canada.
Any and all environmental attributes, including environmental offset credit rights, with respect to TRUE® refrigeration units manufactured after September 1, 2015, shall remain the property
of True Manufacturing Co., Inc. and are not transferred.
MS • 8/20
Warranty Information (USA & Canada Only)

TEC_TM_012 REV. B09/25/2020Page 20 of 20
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EA & DF_157629_09.2020