True STA1FPT-1S-1S, STA1FPT-2HS-2HS, STA1F-1S-HC, STA1F-1G-HC, STA1F-2HG-HC Installation Manual

TRUE

manufacturing co., inc.

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 1

Proper Disposal, Connecting Electricity, & Adapter Plugs 2

INSTALLATION

Ownership & Uncrating 3

How to Connect to Electricity & Wire Gauge Chart 4

Locating and Leveling 5

Sealing Cabinet to the Floor 5

Ramp Installation 6

SETUP

Standard Accessories 7

SPEC SERIES®: STR, STA & STG, ROLLIN AND ROLLTHROUGH

INSTALLATION MANUAL

STR1RRI89-1S

OPERATION

Startup 8

Mechanical Temperature Controls Sequence of Operation 9

Electronic Temperature Controls Sequence of Operation 15

MAINTENANCE, CARE, CLEANING

Cleaning Condenser Coil 24

Important Warranty Information 25

Stainless Steel Equipment Care and Cleaning 26

General Maintenance 27

WARRANTY

Warranty 28

STR2RRT-2G-2S

INSTALLATION MANUAL

SPEC SERIES®: STR, STA & STG, ROLLIN AND ROLLTHROUGH

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

TRUE

SPEC SERIES®: STR, STA & STG, ROLL-IN AND ROLL-THROUGH

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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.

SAFETY INFORMATION

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 Owner Manual.

TO LOCATE REFRIGERANT TYPE, SEE SERIAL LABEL INSIDE CABINET. This cabinet may contain fluorinated greenhouse

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 ser vice 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 unit 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 unit 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 sur faces.

• 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 f ingers 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.

• While cleaning condenser coil lift and hold top louvered grill.
Any servicing to condensing unit remove top louvered grill.

NOTE: We strongly recommend that any servicing be preformed
by a qualified technician.

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WARNING!DANGER!

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 war-

ranty any refrigerator that has been connected to an extension cord.

REPLACEMENT PARTS

• Component parts shall be replaced with like components.

• Servicing shall be done by authorized service personnel, to
minimize the risk of possible ignition due to incorrect parts or
improper service.

• Lamps must be replaced by identical lamps only.

• If the supply cord is damaged, it must be replaced by a special
cord or assembly available from the manufacturer or its service
agent.

HOW TO CONNECT ELECTRICITY

DO NOT, UNDER ANY CIRCUMSTANCES, CUT OR
REMOVE THE GROUND PRONG FROM THE POWER
CORD. FOR PERSONAL SAFETY, THIS APPLIANCE
MUST BE PROPERLY GROUNDED.

The power cord from this appliance is equipped with a grounding
plug which minimizes the possibility of electric shock hazard.

Have the wall outlet and circuit checked by a qualified electrician to
make sure the outlet is properly grounded.

If the outlet is a standard 2-prong outlet, it is your personal 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

NEMA-6-15R

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SPEC SERIES®: STR, STA & STG, ROLL-IN AND ROLL-THROUGH

INSTALLATION

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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

• 1/2 inch socket (Castor Bolts)

• 3/4 inch socket (Skid Bolts)

• 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 f inal location as possible before

removing the wooden skid.

NOTE: KEYS FOR COOLERS WITH DOOR LOCKS
ARE LOCATED IN WARRANTY PACKETS.

LOCK AND KEYS

The following procedure is for locking and unlock unit:

A. Insert the key and turn.

B. Remove the key.

Insert key

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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 of this appliance is equipped with a grounding plug
which mates with a standard grounding wall outlet to minimize the
possibility of electric shock hazard from this appliance. 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 unit should always be
plugged into its 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
unit 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 unit away from the wall, be careful
not to roll over or damage the power cord.

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.

WIRE GAUGE CHART

115 Volt s 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

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.

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LOCATING

1. Make sure unit is as close to the final location as possible.

2. Remove the shipping bolts located at the bottom of the
wooden skid.

3. Carefully slide the unit off the wooden skid. Slide packing
material underneath the side of the unit hanging off the skid.
Then install castors or legs for that side of the unit.

4. Then carefully slide the other side of the unit off one corner
at a time while installing castors or legs for each corner. Use
packing material for under each corner of the unit before
installing a castor or leg.

Removing shipping bolts

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.

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 ex tension cords are never used.

G. Applicance tested according to the climate classes 5 and 7 for

temperature and relative humidity.

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.

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

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SPEC SERIES®: STR, STA & STG, ROLL-IN AND ROLL-THROUGH

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ROLL-IN & ROLL-THRU RAMP INSTALLATION

Once the cabinet is in its final location and level the roll-in ramp can
be installed. The ramp has three slotted holes in back. These slotted
holes slide over three thumb screws located in the front of the
cabinet near the floor.

Be sure the doors are closing smoothly and not binding up on the
ramp. To adjust door sweeper gasket, loosen slotted thumbscrews.
The gasket can then be moved up or down and side to side. The
gasket should make some contact with the ramp when the door is
closing. This can be checked by opening up the door 3-4" and allowing
the door to close. This process may have to be done several times
before securing the sweeper gasket bracket. Once gasket is properly
adjusted, tighten slotted thumbscrews.

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DOOR SWEEP GASKET ADJUSTMENT

To adjust door sweeper gasket, loosen slotted thumbscrews. The
gasket can then be moved up or down and side to side. The gasket
should make some contact with the ramp when the door is closing.
This can be checked by opening up the door 3-4" and allowing
the door to close. This process may have to be done several times
before securing the sweeper gasket bracket. Once gasket is properly
adjusted, tighten slotted thumbscrews. See image 5.

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SPEC SERIES®: STR, STA & STG, ROLL-IN AND ROLL-THROUGH

SETUP

STANDARD ACCESSORIES

DOOR CONFIGURATION:

After installing, cabinet doors can be adjusted for alignment. The hinge
on the door and hinge on the cabinet can be adjusted accordingly.

STEP 1

To remove door open at a 90˚ angle from the cabinet and lift door
up and out from the cabinet hinges carefully avoiding rainshield. Rest
the door in a safe area.

STEP 2

Remove gray plastic cover from hinge located on the cabinet. (See
image 1). Use a standard screw driver and pry out the gray cover.
This exposes the three Phillips screws anchoring the hinge to the
cabinet. (See image 2). Loosen these three screws but don’t remove
them. Adjustment can be made slightly up/down and side to side.

STEP 3

The hinge on the cabinet door can also be adjusted. Remove cover
from hinge located on the door. Pull on the cover directly out from
the door. (See image 3). This exposes the three Phillips screws
anchoring the hinge to the door. Loosen these three screws but
don’t remove them. The hinge can be moved side to side, up and
down. (See image 4).

NOTE: WHEN TIGHTENING THE HINGES TO THE
CABINET AND DOOR DO NOT APPLY PRESSURE
TO THE PHILLIPS SCREWS. CAREFULLY ANCHOR
THEM WITHOUT APPLYING EXTREME AMOUNTS
OF PRESSURE.

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STEP 4

To adjust the lock latch remove two Phillips screws and the latch can
be put to the side for later reinstallation. (See image 5). The lock
base that anchors the latch can be adjusted simply by loosening the
two Phillips screws, but not removing them. Then the lock base can
be moved side to side for adjustment. (See image 6). After adjust­ment is complete tighten the lock base and install the latch back into
place.

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SPEC SERIES®: STR, STA & STG, ROLL-IN AND ROLL-THROUGH

OPERATION

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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 var y 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 counter top

- 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!

DIGITAL TEMPERATURE DISPLAY

The digital temperature display can view ˚C or ˚F. To achieve this,
there is a small plug that will need to be removed to achieve ˚C
reading. See image 1 for temperature display location. If the plug is
kept in the back of the digital display ˚F will be viewable. See images
for reference. When temperature display is in ˚C mode place the
plug in a safe place so it can be easily reinstalled for ˚F reading.

1

Rear of Rainshield

˚F

2

˚C

LIGHT SWITCH LOCATION:

Light switch location depends upon the model. Most instances the
switch is located next to the temperature control.

ENERGY-SAVER SWITCH

With the “-” mark in the down position, this will indicate that the
ENERGY SAVER FUNCTION is OFF and will activate the door/
frame heaters. With the “0” mark in the down position, this will
indicate that the ENERGY SAVER FUNCTION is ON and will
deactivate the door/frame heaters.

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SPEC SERIES®: STR, STA & STG, ROLL-IN AND ROLL-THROUGH

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 restar t 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 star t 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.

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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 specif ic 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.

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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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WHEN TO MAKE AN ADJUSTMENT TO A MECHANICAL TEMPERATURE CONTROL

We advise to make a mechanical temperature control adjustment only for a high altitude location.

HOW TO ADJUST A MECHANICAL TEMPERATURE CONTROL

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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.

ALTITUDE CORRECTION TABLE:

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.

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

Scale Guide for Measuring Back of Temperature Control

Compressor

55

50

5

M

R

A

W

10

E

R

Ter mina ls

Ground

C

R

O

E

L

40

D

35

30

20

25

Ter mina l

1 2

Altitude Correction

3

Front of Temperature Control

Calibration
Screw

To adjust the temperature control
take the control knob off to view the
cut-in screw. (See Photo Above)

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.

11

Bottom of Temperature Control

Cut-out Adjustment
Screw Allen (5/64" or 2 mm.)

Cut-in Adjustment
Screw Torx (T-7)

Compressor
Connection

Compressor Connection
(double terminal)

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TRUE

SPEC SERIES®: STR, STA & STG, ROLL-IN AND ROLL-THROUGH

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, inser t 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.

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STEP 6 - Make sure to reconnect the wires to the proper spade terminal when reinstalling.

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.

INSTRUCTIONS: CUTLER HAMMER TEMPERATURE CONTROL ALTITUDE ADJUSTMENT

STEP 1 - Unplug cooler.

STEP 2 - Turn the temperature control to the “9” position.

Scale Guide for Measuring

360

90

270

180

1

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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8

7

6

5

4

3

2

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SPEC SERIES®: STR, STA & STG, ROLL-IN AND ROLL-THROUGH

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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°

BUL. NO.

CUT

OUT

COLDER

IN

CUT

O

1

9

2

8

3

7

4

5

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SPEC SERIES®: STR, STA & STG, ROLL-IN AND ROLL-THROUGH

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DEFROST TIMER

DEFROST TIME CLOCK OPERATION FOR UNITS
WITH MECHANICAL CONTROL

RECOMMENDED DEFROST SETTINGS:

TRUE Manufacturing has factory set your defrost time clock to a
recommended time and duration defrost scenario. All refrigeration
equipment operating below 30°F will accumulate frost on the evapo­rator coil and will require routine defrost. Your TRUE equipment has
been designed for three defrost periods (6:00 a.m., 2:00 p.m. and
10:00 p.m.). If you decide to deviate from these defrost time settings
please follow the procedures for adjustment below.

TOOLS REQUIRED

• Phillips Head Screwdriver

• 1/4" Nut Driver or Socket

SETTING THE TIMER:

UNPLUG UNIT FROM POWER SUPPLY! DO NOT SET THE TIME
BY ROTATING THE “OUTER” DIAL.

Turn the minute hand clockwise until the time of day on the outer
dial is aligned with the triangle marker on the inner dial (two o’clock
position).

NOTICE: If timer is not set for a minimum of 3 defrost per day
for 30 minutes each, the coil may develop excessive frost. This may
lead to system failure and product loss, which is not covered under
warranty.

The following procedure may be followed to customize your needs.

High usage, high temperature, and high humidity may require 4
defrost settings per day.

WARNING: Always follow the manufacturer’s recommended
settings when programming the amount and duration of the defrost
cycles.

STEP 1: The white tabs located on the outmost area of the time
clock have been factory set for (6:00 a.m., 2:00 p.m., and 10:00
p.m.). Each tab represents 15 minutes of defrost time. Notice that at
each defrost time two white tabs are set for 15 minutes each for a
total of 30 minutes of defrost.

STEP 2: In order to program the time to begin the defrost cycle,
flip the white tabs out to set the defrost time. To eliminate a defrost
time flip the white tabs back toward the center of the Defrost
Timer.

STEP 3: TRUE recommends a 30 minute defrost cycle three times
per day.

ADJUSTING THE DEFROST TIMER:

Your TRUE freezer contains a defrost system that is temperature
terminated, however the time clock has been designed with a time
termination back-up so that the defrost period will not exceed thir ty
minutes. While TRUE requires a minimum 3 defrost periods not to
exceed 30 minutes the procedure on this page should be followed
to customize your specific needs.

1

2

Outer most dial.
White tabs represent 15
minutes of defrost time.

Time of day.

Inner most dial.

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SPEC SERIES®: STR, STA & STG, ROLL-IN AND ROLL-THROUGH

www.truemfg.com

ELECTRONIC TEMPERATURE CONTROLS

LAE ELECTRONIC TEMPERATURE CONTROL GENERAL SEQUENCE OF OPERATION

t1 = Thermostat
t2 = Defrost
t3 = Display

t3 probe is not installed and / or activated in all applications
when t3 is not installed and / or activated, the display probe is t1.

LAE ELECTRONIC CONTROL GENERAL SEQUENCE OF OPERATION

1. Cabinet is plugged in.

a. Display will illuminate.

b. Interior light will illuminate on Glass Door Models only. Solid door cabinet lights are controlled by the door switch.

2. After the LAE control preprogrammed time delay of up to 6 minutes, the compressor and evaporator fan(s) will star t if the
control is calling for cooling.

a. Control or condenser fans may be already pre-programmed from the factory so at the start of every compressor cycle or

during a defrost cycle, the condenser fan(s) will reverse for 30 seconds to blow dir t off the condensing coil.

3. The LAE control will cycle the compressor but may also cycle evaporator fan(s) on and off determined by the Set-Point and
Differential temperatures.

a. The Set-Point is the adjustable preprogrammed temperature which shuts off the compressor and evaporator fan(s).

This is not the programmed cabinet temperature.

b. The Differential is the non adjustable preprogrammed temperature that is added to the Set-Point temperature that will

restart the compressor and evaporator fan(s).

c. The LAE control is designed to read and display a cabinet temperature not a product temperature.

This cabinet temperature may reflect the refrigeration cycle of the Set-Point and its Differential, or it may show an
average temperature.
The most accurate temperature on a cabinets operation is to verify the product temperature.

Example: If the Set-Point is -9°F/-23°C and the Differential is 10°F/5°C

(Set-Point) -9°F + 10 (Differential) = 1°F

Or

(Set-Point) -23°C + 5 (Differential) = -18°C

The compressor and evaporator fan(s) will cycle off -9°F/-23°C and back on at 1°F/-18°C

4. The L AE control may be preprogrammed to initiate defrost by inter val or at specific times of day.

a. At this time the “dEF” will appear on the display and compressor will turn off until a preprogrammed temperature or

duration is reached. During this time for freezers only, evaporator fan(s) will also turn off and the coil heater and drain tube
heaters will also be energized. Some cabinets may also change the rotation of the reversing condenser fan motor.

b. After the preprogrammed temperature or duration for defrost has been reached there may be a short delay for both the

compressor and evaporator fans to restar t. At this time “dEF” may still appear on the display for a short time.

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SPEC SERIES®: STR, STA & STG, ROLL-IN AND ROLL-THROUGH

HOW TO DIAGNOSE AN LAE ELECTRONIC CONTROL

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

www.truemfg.com

LAE Control

Info / Set Point

Button

USING THE LAE ELECTRONIC CONTROL

LOCKING AND UNLOCKING THE LAE CONTROLLER:

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

cabinet operation.

Manual Defrost /

Down Button

Manual Activation

Up Button

Stand- By

Button

LAE Control Icons

Compressor Running

Evaporator Fan Running

Cabinet in Defros t

Activation of 2nd Parameter Set

Alarm

1

HOW TO LOCK AND UNLOCK LAE CONTROLLER:

STEP 1 - To change lock setting press and release the Info button .

“t1” will appear. See image 1.

STEP 2 - Press the Down button until “Loc” appears. See image 2.

STEP 3 - While pressing and holding the Info button press the Up

or Down button to change the lock settings. If “no” appears,
the controller is unlocked. If “yes” appears, the controller is locked. See
images 3 and 4.

STEP 4 - Once the lock setting has been set correctly release the
info button . Wait 5 seconds for the display to show temperature.
See image 5.

2

3

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

4

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

5

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SPEC SERIES®: STR, STA & STG, ROLL-IN AND ROLL-THROUGH

LAE Control

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HOW TO TURN OFF THE LAE ELECTRONIC CONTROL:

May need to unlock control.

WHY: Turning off the control will deactivate all electrical components.

CAUTION: Turning off the control will not shut off power to the cabinet. Cabinet

must be unplugged prior to any repair.

HOW TO TURN OFF THE LAE ELECTRONIC CONTROL:

STEP 1 - To turn off control, press and hold the Stand-by button until

"OFF" appears. Release Stand-by button. See Image 2.

STEP 2 - To turn on control, repeat prior steps and a temperature will appear.

Info / Set Point

Button

Manual Activation

Up Button

Manual Defrost /

Down Button

Stand- By

Button

1

2

TURNING THE GLASS DOOR MODEL LIGHTS ON AND OFF:

May need to unlock control.

WHY: Light may be controlled by LAE Controller or interior light switch.

HOW TO TURN THE GLASS DOOR MODEL LIGHT ON
AND OFF:

STEP 1 - To control interior / sign lights by the LAE Controller, press and

release the Manual Activation button .

STEP 2 - To control interior / sign lights by the interior door switch, depress
the rocker switch to the “ON” position. Light switch is located on inside top
right of the ceiling.

ON Position

(Solid Door model lights are controlled by a
door switch)

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SPEC SERIES®: STR, STA & STG, ROLL-IN AND ROLL-THROUGH

LAE Control

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CHANGING THE "SET POINT":

May need to unlock control.

WHY: The set point is the temperature at which the compressor will shut off.

NOTE: The “set point” IS NOT the cabinet holding temperature.

HOW TO CHANGE THE “SET POINT”:

STEP 1 - To see the set point, press and hold the Info button .

See image 1.

STEP 2 - While still holding the Info button , press the Up or
Down button to change the “set point”.

STEP 3 - Once the “set point” has been set correctly release the Info
button . The display will show temperature. See image 2.

Info / Set Point

Button

Manual Activation

Up Button

Manual Defrost /

Down Button

Stand- By

Button

1

2

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SPEC SERIES®: STR, STA & STG, ROLL-IN AND ROLL-THROUGH

LAE Control

www.truemfg.com

Info / Set Point

Button

Manual Activation

Up Button

Manual Defrost /

Down Button

Stand- By

Button

INITIATE A MANUAL DEFROST:

May need to unlock control.

WHY: A one time additional defrost may be necessary to clear accumulated frost / ice from evaporator coil.

HOW TO INITIATE A MANUAL DEFROST:

The method to initiate a manual defrost is determined by the Defrost Mode Parameter “DTM” preprogrammed in the controller.

REGULAR TIME DEFROST (TIM)

If controller is preprogrammed for “TIM”, press and release the Manual Defrost button until “dEF” appears.

REAL TIME CLOCK (RTC)

If controller is preprogrammed for “RTC” press the and hold the Manual Defrost button for 5 seconds until “dh1” appears.
Release the Manual Defrost button and then press and hold for an additional 5 seconds until “dEF” appears.

NOTE: Defrost will only terminate once a specific preset temperature or a preset time duration is reached.

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SPEC SERIES®: STR, STA & STG, ROLL-IN AND ROLL-THROUGH

LAE Control

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CHANGING “DEFROST INTERVALS”:

May need to unlock control.

This can only be changed if defrost mode parameter “DFM” is set for “TIM”.

WHY: The defrost interval is the time duration between defrost cycles. The defrost
interval time starts when the cabinet is supplied power or after a manual defrost.

HOW TO CHANGE “DEFROST INTERVALS":

STEP 1 - To see the set point, press and hold the Info button and the

Stand-by button at the same time.

NOTE: Depending on the version of control, one of three parameters will
appear: “ScL” image 1a, “SPL” image 1b, “MdL” image 1c.

Info / Set Point

Button

Manual Activation

Up Button

Manual Defrost /

Down Button

Stand- By

Button

1a

1b

1c

STEP 2 - Push the Up button until “dFt” appears. See image 2.

STEP 3 - Press and hold the Info button to see the defrost interval

time. See image 3.

STEP 4 - While pressing and holding the Info button , press the
Up or Down button to change the defrost interval times (higher
the number the less frequent the cabinet will defrost).

STEP 5 - Once the defrost interval time has been changed, release the Info
button .

STEP 6 - Wait 30 seconds for the display to show temperature.
See image 4.

2

3

4

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SPEC SERIES®: STR, STA & STG, ROLL-IN AND ROLL-THROUGH

LAE Control

www.truemfg.com

HOW TO CHANGE DISPLAY READOUT FROM
FAHRENHEIT TO CELSIUS:

May need to unlock control.
This can NOT be changed with the LAE model AR2-28 version of the control. See
page 32 for more information.

WHY: Changing readout will assist with customer application.

HOW TO CHANGE DISPLAY READOUT FROM
FAHRENHEIT TO CELSIUS:

STEP 1 - To change the display, press and hold the Info button and

the Stand-by button at the same time. “MdL” or “SPL” will appear.
See images 1a and 1b.

Info / Set Point

Button

Manual Activation

Up Button

Manual Defrost /

Down Button

Stand- By

Button

1a

1b

2

STEP 2 - Push the Down button until “ScL” appears. See image 2.

STEP 3 - Press and hold the Info button to see the “readout scale”.

See image 3.

STEP 4 - While pressing and holding the Info button , press the
up or down button to change the “readout scale".
See image 4.

STEP 5 - Once the “readout scale” has been changed, release the info
button .

STEP 6 - Wait 30 seconds for the display to show temperature.
See image 5.

3

4

5

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TRUE

SPEC SERIES®: STR, STA & STG, ROLL-IN AND ROLL-THROUGH

LAE Control

www.truemfg.com

DISPLAYING TEMPERATURE PROBES, T1, T2, T3:

WHY: To display temperature probe readings in different locations of the cabinet.

HOW TO DISPLAY PROBE TEMPERATURES:

STEP 1 - To display T1 temperature, press and release the info button

. “t1” will appear. See image 1.

STEP 2 - Press and hold the info button . This is the temperature of
the T1 Probe. See image 2.

STEP 3 - By releasing the info button , “t2” will appear. Press and hold
the info button to display the temperature of the T2 probe.

Info / Set Point

Button

Manual Activation

Up Button

Manual Defrost /

Down Button

Stand- By

Button

1

2

STEP 4 - By releasing the info button again, “t3” will appear. Press and
hold the info button to display the temperature of the T3 probe. (If
probe T3 is not activated, “t3” will not appear of the display.)

DISPLAY CODES

DISPLAY

Defrost in progress Room high temperature alarm
Controller in stand-by Room low temperature alarm
Door open alarm Probe T1 failure
Instant Probe 1 temperature Probe T2 failure
Instant Probe 2 temperature Probe T3 failure

Instant Probe 3 temperature Maximum probe 1 temperature recorded

Minutes of the Real Time Clock Minimum probe 1 temperature recorded
Hours of the Real Time Clock Keypad state lock

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SUBJECT TO CHANGE

SPEC SERIES®: STR, STA & STG, ROLL-IN AND ROLL-THROUGH

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LAE CONTROLLER PARAMETER SETTINGS FOR CELSIUS

For LAE control model AR2-28 ONLY, ALL parameters with a formula
shown need to be converted for Celsius applications.

EXAMPLE:

If current SPL is set for 20 degrees F the formula is (X-32) / 1.8

(20-32) / 1.8 = -6.7 Celsius

AR2-28

SCL 1C ADO
SPL (X-32) / 1.8 AHM
SPH (X-32) / 1.8 AHT (X-32) / 1.8

SP (X-32) / 1.8 ACC
C-H IISM
HYS (X) / 1.8 IISL (X-32) / 1.8
CRT IISH (X-32) / 1.8
CT1 IISP (X-32) / 1.8
CT2 IIHY (X) / 1.8

CSD IIFC

DFM HDS

DFT IIDF
DH1 SB
DH2 DS
DH3 DSM
DH4 DI2
DH5 STT
DH6 EDT

DLI (X-32) / 1.8 LSM

DTO OA1

DTY OA2
DPD CD
DRN INP

DDM OS1 (X) / 1.8

DDY T2

FID OS2 (X) / 1.8

FDD (X-32) / 1.8 T3

FTO OS3 (X) / 1.8
FCM TLD

FDT (X) / 1.8 TDS
FDH (X) / 1.8 AVG

FT1 SIM
FT2 ADR
FT3

ATM

ALA (X-32) / 1.8
AHA (X-32) / 1.8

ALR (X) / 1.8
AHR (X) / 1.8

ATI

ATD

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SPEC SERIES®: STR, STA & STG, ROLL-IN AND ROLL-THROUGH

MAINTENANCE, CARE, CLEANING

CLEANING THE CONDENSER COIL

When using electrical appliances, basic safety precautions should be
followed, including the following. Disconnect power to unit.

TOOLS REQUIRED

• Phillips Screwdriver

• Stiff Bristle Brush

• Adjustable Wrench

STEP 1: Disconnect power to unit.

STEP 2: Remove all screws securing top screen to unit. See image 1.

STEP 3: Clean off accumulated dirt from the condenser coil and

the fan with a stiff bristle brush. After brushing the components off
vacuum all dirt residue from the coil, fan, and surrounding areas. See
image 2.

NOTE: If you cannot completely clean the condensing coil due to
its position, then the front louvered panel will need to be removed.
See Images 3 and 4.

• Air Tank or CO2 Tank

• Vacuum Cleaner

1

www.truemfg.com

2

3

Rainshield removal, top screws.

4

Rainshield removal, bottom screws.

5

Disconnect digital temperature control connections.

24

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TRUE

Condenser

SPEC SERIES®: STR, STA & STG, ROLL-IN AND ROLL-THROUGH

www.truemfg.com

IMPORTANT WARRANTY INFORMATION

Condensers accumulate dirt and require cleaning every 30 days.
Dirty condensers result in compressor failure, product loss, and lost
sales... which are not covered by warranty.

If you keep the Condenser clean you will minimize your service
expense and lower your electrical costs. The Condenser requires
scheduled cleaning every thir ty 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 refrigera­tion service company.

On the Spec Series units the condenser is accessible on the top of
the unit. You must lift open the cabinet rainshield to expose the
Condenser. (Spec Series models)

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. Open the rainshield.

3. Vacuum or brush the dirt, lint, or debris from the f inned
condenser coil.

4. If you have a significant dir t 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 f inished be sure to close the rainshield.

6. Reconnect the electrical power to the unit.

If you have any questions, please call TRUE Manufacturing at 636-240­2400 or 800-325-6152 and ask for the Service Depar tment. 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

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SPEC SERIES®: STR, STA & STG, ROLL-IN AND ROLL-THROUGH

www.truemfg.com

STAINLESS STEEL EQUIPMENT CARE
AND 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 rear its ugly head.

1. Scratches from wire brushes, scrapers, and steel pads are just
a few examples of items that can be abrasive to stainless steel’s
surface.

2. Deposits left on your st ainless steel can leave spots. You may have
hard or sof t water depending on what part of the country you live
in. Har d water can leave spot s. Hard water that is heated can le ave
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.

3. Chlorides are present in table salt, food, and water. Household
and industrial cleaners are the worst type of chlorides
to use.

RECOMMENDED CLEANERS FOR CERTAIN
SITUATIONS / ENVIRONMENTS OF STAINLESS
STEEL

A. Soap, ammonia and detergent medallion applied with a cloth or

sponge can be used for routine cleaning.

B. Arcal 20, Lac-O-Nu Ecoshine applied provides barrier f ilm for

fingerprints and smears.

C. Cameo, Talc, Zud First Impression is applied by rubbing in

the direction of the polished lines for stubborn stains and
discoloring.

D. Easy-off and De-Grease It oven aid are excellent for removals

on all finishes for grease-fatty acids, blood and burnt-on foods.

E. Any good commercial detergent can be applied with a sponge

or cloth to remove grease and oil.

F. Benefit, Super Sheen, Sheila Shine are good for restoration /

passivation.

NOTE: The use of stainless steel cleaners or other such solvents is
not recommended on plastic parts. Warm soap and water will suffice.

8 STEPS THAT CAN HELP PREVENT RUST ON
STAINLESS STEEL:

1. USING 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. Step 2 tells you how to
find the polishing marks.

2. CLEANING ALONG THE POLISH LINES
Polishing lines or “grain” are visible on some stainless steels.

Always scrub parallel to visible lines on some stainless steels.
Use a plastic scouring pad or soft cloth when you cannot see
the grain.

3. USE ALKALINE, ALKALINE CHLORINATED OR

NON-CHLORIDE CONTAINING 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.

4. WATER TREATMENT
To reduce deposits, soften the hard water when possible.

Installation of certain filters can remove corrosive and distasteful
elements. Salts in a properly maintained water softener can be
to your advantage. Contact a treatment specialist if you are not
sure of the proper water treatment.

5. MAINTAINING THE CLEANLINESS OF YOUR

FOOD EQUIPMENT

Use cleaners at the recommended strength (alkaline chlorinated

or non-chloride). Avoid build-up of hard stains by cleaning
frequently. When boiling water with your stainless steel
equipment, the single most likely cause of damage is chlorides in
the water. Heating any cleaners containing chlorides will have
the same damaging effects.

6. 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.

7. HYDROCHLORIC ACID (MURIATIC ACID)

SHOULD NEVER BE USED ON STAINLESS STEEL

8. REGULARLY RESTORE/PASSIVATE STAINLESS
STEEL

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SPEC SERIES®: STR, STA & STG, ROLL-IN AND ROLL-THROUGH

GENERAL MAINTENANCE

LIGHT BULB REPLACEMENT (INTERIOR LIGHTS)
GENERAL MAINTENANCE

WARNING: When replacing a light bulb make sure power to the

unit is either turned off or unplugged.

Be careful when removing the light bulb. Please be aware of your local
ordinances in disposing old bulbs. These bulbs should be disposed in
a safe and correct manner.

• Simply unscrew the light bulb. See images 1 & 2.

www.truemfg.com

1

Interior Light

2

Interior Light

27

FOR ADDITIONAL MAINTENANCE INSTRUCTION,
PLEASE VISIT THE MEDIA CENTER AT
WWW.TRUEMFG.COM

TRUE

SPEC SERIES®: STR, STA & STG, ROLL-IN AND ROLL-THROUGH

www.truemfg.com

WARRANTY INFORMATION (U.S.A. & CANADA ONLY!

THIS WARRANTY ONLY APPLIES TO UNITS SHIPPED FROM TRUE'S MANUFACTURING FACILITIES AFTER SEPTEMBER 1, 2015.

THREE-YEAR PARTS &LABOR WARRANTY

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 specified 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 first.
Any part covered under this warranty that are 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 first, 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 fluorescent bulbs. Warranty also does not
cover issues caused by improper installation or lack of basic preventative maintenance which includes regular cleaning of condenser coils.

ADDITIONAL TWO-YEAR COMPRESSOR WARRANTY

In addition to the Three (3) year warranty stated above, TRUE warrants its hermetically and semi-hermetically sealed 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 from the
date of original installation but not to exceed five (5) years and three (3) months 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 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 finish, temperature control, refrigerant, metering device, driers,
motor starting equipment, fan assembly or any other electrical component, etcetera.

404A/134A/HYDROCARBON COMPRESSOR WARRANTY

The two year 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 specifications please
call TRUE technical service department (855-372-1368). Failure to comply with recommended lubricant specification 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 insure low moisture levels in the system. 500 microns or lower must be obtained.

WARRANTY CLAIMS

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, the compressor model tag must be returned to TRUE along with above listed information.
Any action or breach of these warranty provisions must be commenced within one (1) year after that cause of action has occurred.

WHAT IS NOT COVERED BY THIS WARRANTY

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, fire, flood, 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 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 September 1, 2015.

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