True TSSU-48-18M-B-HC, TSSU-60-24M-B-ST-HC, TSSU-72-18-HC, TSSU-72-15M-B-HC, TSSU-72-30M-B-ST-FGLID-HC Owners Manual

TRUE

manufacturing co., inc.

INSTALLATION MANUAL

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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, & Electrical Instructions 3

Wire Gauge Chart 4

Locating and Leveling 5

Installation of Legs or Castors 5

Sealing Cabinet to the Floor 6

SETUP

Standard Accessories 7

OPERATION

Startup 9

Mechanical Temperature Controls Sequence of Operation 10

Electronic Temperature Controls Sequence of Operation 14

UNDERCOUNTERS

WORKTOPS

SANDWICH/SALAD

PIZZA PREP &

FOOD PREP

TWT-67D-2

TPP-67

MAINTENANCE, CARE, CLEANING

Cleaning Condenser Coil 25

Important Warranty Information 25

Stainless Steel Equipment Care and Cleaning 26

General Maintenance 27

WARRANTY

Warranty 31

TSSU-48-10-HC

TFP-72-30M-D-2

INSTALLATION MANUAL

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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

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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 service personnel. Do not puncture
refrigerant tubing.

• CAUTION - Risk of fire or explosion. Flammable refrigerant used. Consult repair manual/owner’s guide before attempting to service
this product. All safety precautions must be followed.

• CAUTION - Risk of fire or explosion. Dispose of properly in accordance with federal or local regulations. Flammable refrigerant used.

• CAUTION - Risk of fire or explosion due to puncture of refrigerant tubing; follow handling instructions carefully. Flammable refrigerant

used.

• CAUTION - Keep clear of obstruction all ventilation openings in the appliance enclosure or in the structure for building-in.

SAFETY PRECAUTIONS

When using electrical appliances, basic safety precautions should be
followed, including the following:

• This refrigerator must be properly installed and located in
accordance with the Installation Instructions before it is used.

• Do not allow children to climb, stand or hang on the shelves
in the refrigerator. They could damage the refrigerator and
seriously injure themselves.

• Do not touch the cold surfaces in the freezer compartment
when hands are damp or wet. Skin may stick to these
extremely cold surfaces.

• Do not store or use gasoline or other flammable vapors and
liquids in the vicinity of this or any other appliance. Do not store
explosive substances such as aerosol cans with a flammable
propellant in this appliance.

• Keep 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.

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

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208-230/60/1

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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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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

• Phillips Screwdriver

• Level

The following procedure is recommended for uncrating the unit:

A. Remove the outer packaging, (cardboard and bubbles or

styrofoam corners and clear plastic). Inspect for concealed
damage. Again, immediately file a claim with the freight carrier
if there is damage.

B. Move your unit as close to the final location as possible before

removing the wooden skid.

C. Remove door bracket on swinging glass door models (see

image 1-2). Do not throw the bracket or blocks away. For
future cabinet movement the bracket and blocks will need to
be installed so the glass door does not receive any damage.
(See image for bracket and shipping block removal)

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

ELECTRIC INSTALLATION & SAFETY
INFORMATION

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

• Lamps must be replaced by identical lamps only.

• Appliance tested according to the climate classes 5 and 7
temperature and relative humidity.

ELECTRICAL INSTRUCTIONS

A. Before your new unit is connected to a power supply, check the

incoming voltage with a voltmeter. If anything less than 100% of
the rated voltage for operation is noted, correct immediately.

B. All units are equipped with a service cord, and must be

powered at proper operating voltage at all times. Refer to
cabinet data plate for this voltage.

TRUE RECOMMENDS THAT A SOLE USE CIRCUIT BE
DEDICATED FOR THE UNIT.

WARNING: Compressor warranties are void if compressor burns

out due to low voltage.

WARNING: Power supply cord ground should not be removed!

WARNING: Do not use electrical appliances inside the food stor-

age 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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3

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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

LOCATING

A. Remove louver from the front of cabinet (see page 11 for

louver grill removal / reinstallation) and backguard (if applicable)
from rear of cabinet.

B. Skid bolts are located in each of 4 corners inside cabinet

bottom. See photo A.

C. Remove skid bolts. See photo B.

D. Cut straps if applicable. See photo C.

E. Carefully lift cabinet off of skid.

F. Appliance tested according to the climate classes 5 and 7 for

temperature and relative humidity.

Removing skid from bottom
of cabinet.

A

B C

LEVELING

A. Set unit in its final location. Be sure there is adequate ventilation

in your room. Under extreme heat conditions, (100°F+,
38°C+), you may want to install an exhaust fan.

WARNING: WARRANTY IS VOID IF VENTILATION IS
INSUFFICIENT.

B. Proper leveling of your TRUE cooler is critical to operating

success (for non-mobile models). Effective condensate removal
and door operation will be effected by leveling.

C. The cooler should be leveled front to back and side to side with

a level.

D. Ensure that the drain hose or hoses are positioned in the pan.

E. Free plug and cord from inside the lower rear of the cooler (do

not plug in).

F. The unit should be placed close enough to the electrical supply

so that extension cords are never used.

NOTE: If the cabinet has a center leveling screw, castor, or leg,
make sure it is adjusted properly so it makes full contact with the
floor after the cabinet has been leveled.

WARNING: CABINET WARRANTIES ARE VOID IF
OEM POWER CORD IS TAMPERED WITH. TRUE
WILL NOT WARRANTY ANY UNITS THAT ARE
CONNECTED TO AN EXTENSION CORD.

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Lower Rail
Assembly

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Lower Rail Assembly

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INSTALLATION OF CASTORS OR
OPTIONAL LEGS

Important Safeguard for installation of leg/castor. Images 1-5 demon­strate procedure.

SECURING CASTORS AND LEGS

To obtain maximum strength and stability of the unit, it is important
that you make sure each castor is secure. Optional legs are hand­tightened securely against the lower rail assembly see image 4-5. The
bearing race on the castor or the top edge of the leg must make firm
contact with the rail.

LEVELING SHIMS

Four leveling shims have been provided for leveling castored units
positioned on uneven floors. Shims must be positioned between rail
end and bearing race.

A. Turn the bearing race counter-clockwise until the cabinet is

level. Level front to back and side to side. (diagonally)

B. Install the desired number of shims, making sure the slot of the

shim is in contact with the threaded stem of the castor. See
image 2.

C. If more than one shim is used, turn the slot at a 90° angle so

they are not in line.

D. Turn the bearing race clockwise to tighten and secure the

castor by tightening the anchoring bolt with a 3/4 inch open­end wrench or the tool provided. See image 3.

1

Thread castor into the underside of
cabinet frame rail.

3

Use the tool provided to tighten the
castor into place.

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2

For leveling, insert the shim between
castor and frame rail.

4

Thread leg into cabinet bottom
frame rail.

CAUTION: TO AVOID DAMAGE TO LOWER RAIL
ASSEMBLY, SLOWLY RAISE UNIT TO UPRIGHT
POSITION.

NOTE: OPEN HOLES LOCATED ON THE CROSS
MEMBERS OF THE FRAME RAIL SHOULD BE
PLUGGED BEFORE UNIT IS IN USE.

5

The end of the leg is adjustable for
easy leveling.

Rail End

Snug Fit
Here

Leveling Shim

CastorLeg

Rail End

Snug Fit
Here

Bearin
Race

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Leveling Shim

CastorLeg

Bearing
Race

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INSTALLATION OF CASTORS OR OPTIONAL LEGS
(TFP MODELS ONLY)

ADJUSTING CASTORS FOR PROPER LEVELING

Level unit. If unit is not level shims are required. Follow these instruc­tions to install shims.

A. Remove front and rear grill depending upon which castor

needs adjusting. Locate the castor box.

B. Lay unit on it’s back. Use soft packing material and be careful

not to scratch the unit. Remove pans and lid and place them
to the side before laying unit on it’s back.

C. Each unit has one castor box different from the others. This

box is totally enclosed. Remove this castor box from bottom
of unit. Back out four screws anchoring the box. You will need
a 1/4" hex head nut driver to disassemble this castor box.

D. Loosen castor with tool provided.

E. Install the desired number of shims, making sure the slot of the

shim is in contact with the threaded stem of the castor. If more
than one shim is used, turn the slot at a 90° angle so they are
not in line.

F. After adjusting castor reassemble and reinstall castor box.

Then carefully upright unit and reinstall pans and lid. Angle so
they are not in line.

SEALING CABINET TO FLOOR

STEP 1 - Position Cabinet - Allow one inch between the wall and

rear of the refrigerator to assure proper ventilation. For freezers 3
inches between the wall and rear of the cabinet will assure proper
ventilation.

STEP 2 - Level Cabinet - Cabinet should be level, side to side and
front to back. Place a carpenter’s level in the interior floor in four
places:

A. Position level in the inside floor of the unit near the doors.

(Level should be parallel to cabinet front). Level cabinet.

B. Position level at the inside rear of cabinet. (Again level should

be placed parallel to cabinet back).

C. Perform similar procedures to steps A & B by placing the level

on inside floor (left and right sides - parallel to the depth of the
cooler). Level cabinet.

STEP 3 - Draw an outline on the base on the floor.

STEP 4 - Raise and block the front side of the cabinet.

STEP 5 - Apply a bead of “NSF Approved Sealant”, (see list below),

to floor on half inch inside the outline drawn. The bead must be heavy
enough to seal the entire cabinet surface when it is down on the
sealant.

STEP 6 - Raise and block the rear of the cabinet

roller box

1

Locate castor box

anchoring
screw

2

One castor box on each unit is fully
enclosed.

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

3

Loosen castor.

4

Install shims.

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Standards

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SETUP

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STANDARD ACCESSORIES

SHELVING INSTALLATION / OPERATION

SHELF INSTALLATION:

A. Hook shelf clips onto shelf standards.

B. Position all four shelf clips equal in distance from the floor for

flat shelves.

C. Lower front of gravity feed TrueTrac organizers to enable

proper feed.

D. Place shelves on shelf clips making sure all corners are seated

properly.

Shelf

SHELF INSTALLATION:

For Proper Shelf Clip Installation Please Read The Following
Instructions.

STEP 1

Install the top tab of the shelf clip into the proper hole. Push up on
the bottom of the clip. (See image 1).

STEP 2

Bottom tab of the shelf clip will fit tightly. You may need to squeeze or
twist the bottom of the shelf clip to install. (See image 2 & 3).

STEP 3

After installation, the shelf clip will fit snug into the shelf standard.
The shelf clip should not be loose or able to wiggle out of the shelf
standard.

SHELF INSTALLATION TIPS

1. Install all the shelf clips before installing the shelves.

2. Start at the bottom in terms of shelf installation and work your
way up.

3. Always lay the back of each shelf down on the rear clips before
the front.

Shelf

Shelf

Shelf

Clip

WARNING!

Do not use pliers or any crimping tools when installing shelf clips.
Altering shelf clips in any way can lead to shelving instability.

Pillaster
(I-beam)

1

Installing top tab of shelf clip

3

You may need to squeeze or twist
the bottom of the shelf clip to
install

2

Installing bottom of the shelf
clip

4

Shelf clip installation complete

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DRAWER REMOVAL & INSTALLATION

Depending on the version and model of the cabinet, one of the fol­lowing drawer configurations will be standard.

DRAWER SET 1

REMOVAL

Open drawer completely. Roller clips will be in the down position.
Images 1 & 2.

While holding the sides of the drawer, use your finger to rotate the
clips upward. Image 3.

Lift drawer and remove from channel. Image 4.

INSTALLATION

Lower rear rollers into channel slots.

With the roller clips in the upward position, lower front rollers into
channel.

Make sure roller clips are in the down position.

1 2 3 4

AIR-FLOW THROUGHOUT CABINET (TPP Models Only)

WARNING: Removal of baffles in condiment pan area will adverse-

ly affect refrigeration performance. Please leave the baffles in the
correct location. (See images)

Correct bafe location.

INSTALLING CUTTING BOARD ON MODEL TPP AND
TFP

A. Locate and remove the cutting board from the back or side of

cabinet. (see images 1 and 2)

B. Locate brackets and mounting hardware. (see image 3)

C. Place the cutting board on countertop.

D. Position one bracket on the cutting board and align hole in

bracket with pre-installed Rivnut in the side of the countertop.

E. Secure bracket to counter top with included hardware.

(see image 4)

F. Repeat install for bracket on opposite side.

DRAWER SET 2

REMOVAL

Slide out drawer and locate white drawer retainer.

Push white drawer retainer towards drawer front panel.

Pull up on the white drawer retainer and disengage from drawer.
Image 5.

Pull out and remove drawers.

INSTALLATION

Verify white drawer retainer is in the up position. Image 6.

Insert drawer onto drawer slide and push into position. Image 7.

Secure drawer to slide by pushing down on the white drawer retainer
and pushing back to lock. Image 8.

Verify drawer operation.

5 6 7 8

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3 4

LIGHT SWITCH LOCATION:

Light switch location depends upon the TUC & TWT glass door
models. Most models will have the light switch located inside the unit
above the door. Most instances the switch is located next to the light
on the ceiling.

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TPP REAR BUMPER INSTALLATION

KIT CONTENTS

• Bumpers (2)

• Screws (2)

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TOOLS REQUIRED

• Phillips Screwdriver

STEP 1

After removing cardboard crate, locate and remove bag of shelf clips
and bumpers that are secured to the box containing the castors.

STEP 2

Remove the cutting board from the back of the TPP.

STEP 3

Locate both pre-drilled holes in the back outer wall.

STEP 4

Remove 2 screws and 2 bumpers from the bag.

STEP 5

Install bumpers and screws with Phillips screwdriver.

OPERATION

1 2

3 4

5

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.

• Electronic temperature control is located on rear of unit or
behind access grill.

• LAE temperature control is located on the front of cabinet
counter top or in/behind louvered grill.

• Mechanical temperature control is located inside of unit.

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!

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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.

MECHANICAL TEMPERATURE CONTROL GENERAL SEQUENCE OF OPERATION

MECHANICAL CONTROL REFRIGERATOR GENERAL SEQUENCE OF OPERATION

1. Cabinet is plugged in.
a. Interior lights will illuminate on Glass Door Models only. If lights do not come on verify the light switch is in the “ON”

position. Solid door cabinets may or may not have lights that may be controlled by the door switch.

2. The compressor and evaporator fans will start if the temperature control is calling for cooling. (If the compressor does not
start, verify that the temperature control is not in the “OFF” or “0” position.)

3. The temperature control may cycle the compressor and evaporator fan(s) on and off together.

a. The temperature control is sensing the evaporator coil temperature.
b. The temperature control should be set on the #4 or #5.
c. The warmest setting is #1, the coldest is #9, and #0 is the off position.
d. The thermometer is designed to read and display a cabinet temperature not a product temperature.

The thermometer may reflect the refrigeration cycle swings of up and down temperatures.
The most accurate temperature on a cabinet's operation is to verify the product temperature.

4. There is not a defrost timer as the temperature control will initiate the off-cycle defrost during each refrigeration cycle.

a. At this time, the compressor will and the evaporator fan(s) may turn off. Defrost heaters are not installed on refrigerators

and therefore will not be energized.

b. After the evaporator coil temperature has been reached, as determined by the temperature control, the compressor will

restart.

5. There may be a timer located on the condensing unit base. This timer is not used for a defrost event. The timer will change
the rotation of the reversing condenser fan motor.

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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

Ter min a ls

Ground

Ter min a 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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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.

www.truemfg.com

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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9

8

7

6

5

4

3

2

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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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ELECTRONIC TEMPERATURE CONTROLS

LAE ELECTRONIC TEMPERATURE CONTROL GENERAL SEQUENCE OF OPERATION

www.truemfg.com

t1 = supply air / return air* (thermostat)
t2 = coil / copper line (defrost)
t3 = return air / supply air* (display)

t3 probe is not installed and / or activated in all applications
with 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
start if the control is calling for cooling.

a. Control or condensor 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 restar t 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 it’s Differential.
The most accurate temperature on a cabinets operation is to verify the product temperature.

* STA, STG, STM, STR Models.

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

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

Or

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

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

4. The LAE control may be preprogrammed to initiate defrost by 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 shor t 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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HOW TO DIAGNOSE AN LAE ELECTRONIC CONTROL

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

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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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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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LAE Control

www.truemfg.com

CHANGING THE "SET POINT":

May need to unlock control.

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

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

HOW TO CHANGE THE “SET POINT”:

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

See image 1.

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

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

Info / Set Point

Button

Manual Activation

Up Button

Manual Defrost /

Down Button

Stand-By

Button

1

2

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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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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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LAE Control

www.truemfg.com

HOW TO CHANGE DISPLAY READOUT FROM
FAHRENHEIT TO CELSIUS:

May need to unlock control.

This can only be changed with the LAE model BR1 version of the control.

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” will appear. See image 1.

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

Info / Set Point

Button

Manual Activation

Up Button

Manual Defrost /

Down Button

Stand-By

Button

1

2

3

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.

4

5

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LAE Control

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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.

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.)

Info / Set Point

Button

Manual Activation

Up Button

Manual Defrost /

Down Button

Stand-By

Button

1

2

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

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LAE Controller Parameter Settings

for Celsius

For every model / version of the LAE controller,

ALL parameters with a formula shown need to be

converted for Celsius applications.

EXCEPT MODEL: BR1

EXAMPLE:

If current SPL is set for 20 degrees F,

the formula is (X-32) / 1.8

(20-32) / 1.8 = -6.7 Celcius

AR2-28
SCL
SPL
SPH

SP

HYS

DLI

FDD

FDT
FDH

FT3 DLTFP
ATM LCSDSH
ALA
AHA
ALR
AHR

ATI AHR

ATD ATD

1C

(X-32) / 1.8

(X-32) / 1.8

(X-32) / 1.8

(X) / 1.8

(X-32) / 1.8

(X-32) / 1.8

(X) / 1.8

(X) / 1.8

(X-32) / 1.8

(X-32) / 1.8

(X) / 1.8

(X) / 1.8

AHT

IISL

HSIITRC
PSII1TC
YHII2TC

2AOYTD

1SOMDD

2SODIF

3SOOTF

(X-32) / 1.8

(X-32) / 1.8

(X-32) / 1.8

(X-32) / 1.8

(X) / 1.8

(X) / 1.8

(X) / 1.8

(X) / 1.8

SPL

SPH

SP

HYS

DLI

FDD

FDT

SP

HYS

ALA
AHA
ALR

HDFCFIIDSC

ALAMSD3HD
AHA2ID4HD
RLATTS5HD
RHATDE6HD

ITAMSL

DTA1AOOTD

LPSDCDPD
HPSPNINRD

(X-32) / 1.8

(X-32) / 1.8

(X-32) / 1.8

(X) / 1.8

(X-32) / 1.8

(X-32) / 1.8

(X) / 1.8

(X) / 1.8

(X-32) / 1.8

(X-32) / 1.8

(X) / 1.8

(X) / 1.8

(X-32) / 1.8

(X-32) / 1.8

(X-32) / 1.8

(X) / 1.8

(X-32) / 1.8

(X-32) / 1.8

(X) / 1.8

(X) / 1.8

BIT25

BIT25 Heating

www.truemfg.com

ADO

AHM
AHT
ACC

SB

LSM

OS1

T2

ADR

ADO

SB

DI1

PSL

ADR

LSII1TC
HSII2TC
PSIIDSC

YHIIMFD
CFIITFD

FDIIBFD

1IDOTD
2IDYTD
M3TDPDODA

LSPMDD

RSPYDDCCA

DLT2TFFDIITFD

MISMTASD2HD

2IDMC2TYDD

RSPNOT3T

MSDBPDLTMCF
MSLTISDT

MISMTA

3SONRDMHA

FOPDIFMSIIH-C

1AOOTF
2AOMCF

2SO1TFSDHMFD

LCS3TFBS1HD

FOPFOT

1AOTDGVA
2AORAMIS1TF
1SOTCRDA2TF

(X-32) / 1.8

(X-32) / 1.8

(X-32) / 1.8

(X-32) / 1.8

(X) / 1.8

(X) / 1.8

(X-32) / 1.8

(X-32) / 1.8

(X) / 1.8

(X) / 1.8

1C

(X-32) / 1.8

(X-32) / 1.8

(X) / 1.8

1C

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DANFOSS ELECTRONIC TEMPERATURE CONTROL GENERAL SEQUENCE OF OPERATION

control probe = return air
defrost probe = coil

DANFOSS ELECTRONIC CONTROL REFRIGERATOR WITH DIGITAL DISPLAY
GENERAL SEQUENCE OF OPERATION

1. Cabinet is plugged in.
a. Interior lights will illuminate on glass door models only. If the lights do not come on verify the light switch is in

the “ON” position. Solid door cabinets may or may not have lights that may be controlled by the door switch.

b. Cabinet will star t in a Defrost Cycle. The duration for defrost will be a minimum of 4 minutes and a maximum of

60 minutes.

c. The Danfoss Control Display will illuminate showing “deF”.

www.truemfg.com

2. The Danfoss control is preprogrammed to initiate defrost every 4 hours of compressor run time.
If deemed necessary by the Danfoss control additional defrost may occur at unspecified times.

a. At this time the, evaporator fans will continue to run but the compressor will turn off.

Some cabinets may also change the rotation of the reversing condenser fan motor.

b. Once a preprogrammed temperature of the evaporator coil is reached, the Defrost Cycle will terminate and the

2 minute delay will star t.
c. After the 2 minute delay the compressor will restart.
d. The Danfoss Control Display will continue to show “deF” for an additional 30 minutes.

3. The Danfoss control will cycle the compressor and the evaporator fan(s)

on and off determined by the Set-Point and Differential temperatures.

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

not the programmed cabinet temperature.
b. The Differential is the non adjustable preprogrammed temperature that is added to the Set-Point temperature that will

star t the compressor and evaporator fan(s).
c. The Danfoss control is designed to read and display a cabinet temperature not a product temperature. This cabinet

temperature may reflect the refrigeration cycle of the Set-Point and its Differential. The most accurate temperature on a

cabinets operation is to verify the product temperature.

Example: If the Set-Point is 34°F/1.1°C and the Differential is 6°F/3.3°C

(Set-Point) 34°F + 6 (Differential) = 40°F

Or

23

(Set-Point) 1.1°C + 3.3 (Differential) = 4.4°C

The compressor will cycle off 34°F/1.1°C and back on at 40°F/4.4°C

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DANFOSS ELECTRONIC CONTROL REFRIGERATOR WITHOUT DIGITAL DISPLAY
GENERAL SEQUENCE OF OPERATION

1. Cabinet is plugged in.
a. Interior lights will illuminate on glass door models only. If the lights do not come on verify the light switch is in the “ON”

position. Solid door cabinets may or may not have lights that may be controlled by the door switch.

b. Cabinet will star t in a Defrost Cycle. The duration for defrost will be a minimum of 4 minutes and a maximum of

60 minutes.

2. The Danfoss control is preprogrammed to initiate defrost every 4 hours of compressor run time.
If deemed necessary by the Danfoss control additional defrost may occur at unspecified times.

a. At this time, the evaporator fans will continue to run but the compressor will turn off.

Some cabinets may also change the rotation of the reversing condenser fan motor.

b. Once a preprogrammed temperature of the evaporator coil is reached, the Defrost Cycle will terminate and the

2 minute delay will star t.

c. After the 2 minute delay the compressor will restar t.

3. The Danfoss control will cycle the compressor and the evaporator fan(s) on and off together.

a. The temperature control is sensing the discharge 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.

This cabinet temperature may reflect the refrigeration cycle determined by the temperature control.
The most accurate temperature on a cabinets operation is to verify the product temperature.

www.truemfg.com

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MAINTENANCE, CARE, CLEANING

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CLEANING THE CONDENSER COIL

When using electrical appliances, basic safety precautions should be
followed, including the following:

TOOLS REQUIRED

• Phillips Screwdriver

• Stiff Bristle Brush

• Adjustable Wrench

STEP 1 - Disconnect power to unit.

STEP 2 - Take off grill assembly located in one of three locations

(see pictures 1-3).

STEP 3 - Remove bolts anchoring compressor assembly to frame
rails and carefully slide out. (Tube connections are flexible)

STEP 4 - Clean off accumulated dirt from condensing coil with a
stiff bristle brush.

STEP 5 - Lift cardboard cover above fan at plastic plugs and carefully
clean condenser coil and fan blades.

STEP 6 - After brushing condenser coil vacuum dirt from coil, and
interior floor.

STEP 7 - Replace cardboard cover. Carefully slide compressor
assembly back into position and replace bolts.

STEP 8 - Reinstall louver assembly onto unit with appropriate fas­teners and clips. Tighten all screws.

STEP 9 - Connect unit to power and check to see if condenser is
running.

• Air Tank or CO2 Tank

• Vacuum Cleaner

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

, nitrogen, or pressurized air.

CO

2

If you cannot remove the dirt adequately, please call your refrigera­tion service company.

On most of the reach-in units the condenser is accessible in the
rear of the unit. You must remove the cabinet grill to expose the
Condenser.

The Condenser looks like a group of vertical fins. You need to be able
to see through the condenser for the unit to function at maximum
capacity. Do not place filter material in front of condensing coil. This
material blocks air-flow to the coil similar to having a dirty coil.

THE CLEANING OF THE CONDENSER IS NOT
COVERED BY THE WARRANTY!

1 2

3

HOW TO CLEAN THE CONDENSER:

1. Disconnect the electrical
power to the unit.

2. Remove the louvered grill.

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

4. If you have a significant
dirt build up you can blow
out the condenser with compressed air.

(CAUTION MUST BE USED TO AVOID EYE INJURY.
EYE PROTECTION IS RECOMMENDED.)

5. When finished be sure to replace the louvered grill. The grill
protects the condenser.

6. Reconnect the electrical power to the unit.

If you have any questions, please call TRUE Manufacturing at 636­240-2400 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

Condenser

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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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GENERAL MAINTENANCE

PERIODIC MAINTENANCE FOR LIDS

NOTE: Because lid pin screws are designed to be removable for

cleaning, it is important these are checked periodically to assure they
are tight.

STEP 1

Check to see if lid assembly screws are tight. See Images 1, 2, 3, and 4.

STEP 2

Use screwdriver to tighten screws into place.

STEP 3

Make sure that screws are secure.

COMPOSITE CUTTING BOARD MAINTENANCE

Please see comments from Supplier regarding composite cutting
boards below.

NOTE: Composite Cutting Boards Manufactured From Richlite
Material and Warping.

“To prevent warping on cutting boards manufactured from Richlite
material, simply turn the board over on a regular scheduled basis.
Warping is caused by continued moisture and temperature differenc­es on the top and bottom of the boards. By turning the board over,
this will allow both sides of the board to receive the same exposure.

There is a chance that larger size boards may warp as a characteristic
of the material.”

®

Inside (TSSU)

1

TPP

3

Outside (TSSU)

2

TPP

4

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CHILLER HOSE (TSSU-27-12M-C MODELS ONLY)

KIT CONTENTS

• Hose Cleaning Brush

TOOLS REQUIRED

• Slotted Screwdriver

• Needle Nose Pliers

• Hex-Head Nut Driver

WARNING: POWER MUST BE DISCONNECTED
BEFORE BEGINNING THIS PROCEDURE.

A. Remove the condiment pans. (Fig, 1)

B. Remove the shelving from the unit. (Fig 2)

C. Using needle-nosed pliers remove the right or left pilaster as

needed. (This will provide clearance to pull right or left housing
away from evaporator). (Fig. 3)

D. Using a hex-head nut remover, remove right or left C-clamps

as needed from chiller hose. (Remove clamps from both ends
of the assembly). (Fig. 4)

E. Back off four slotted thumb screws and remove evaporator

housing. (Fig. 5)

1

2

3 4

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NOTE: Note the proper position of the flexible tubing on top of
evaporator. (See Fig. 6). Hose will need to be repositioned in the
same area to ensure proper conditioned air circulation.

F. Gently pull housing from the right or left side and work for ward

in order to access the flexible hose. (Fig.6)

CAUTION: Gloves are recommended to avoid contact with pos­sible sharp edges.

G. Rout the bottle brush through the rear of the flexible hose and

push contents forward. (Fig. 7)

H. Reverse the procedures as outlined above.

NOTE: Replace flexible hose in the original position as indicated
in Fig. 6. Failure to replace properly will result in compromised unit
operation.

5

7

6

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

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REMOVAL AND INSTALL OF FALSE BOTTOM PANEL
MODEL(S) - TSSU-HC

This advisement provides information pertaining to Mega units and
non-Mega units. A Mega unit’s nomenclauture will include “M”, for
example TSSU-xx-xx-Mx-HC.

NOTE: THE FALSE BOTTOM PANEL UNDER
THE PRODUCT PANS ARE REMOVABLE FOR
CLEANING. PANELS MUST BE INSTALLED FOR
PROPER CABINET OPERATION AND PRODUCT
TEMPERATURES.

The drawings provided may show various components removed
from the pictures. Not all components removed represent the actual
repair/install process of advised parts.

www.truemfg.com

3

STEP 3 (NON-MEGA UNITS)

With product and shelf removed, tilt and pull the panel toward
the front. See image 3.

1

STEP 1

The number of panels installed will vary upon the model of cabinet.
See image 1.

Not all components shown are used in all applications.

False Bottom Panels

2

STEP 2 (MEGA UNITS)

4

False Bottom Baffle

STEP 4 (2 AND 3 DOOR NON-MEGA UNITS)

There is a front baffle that is designed to prevent the panel from
moving. This baffle is slotted for adjustment and secured with a
single screw. See image 4.

If the baffle is removed for cleaning, it must be reinstalled and
adjusted when the panel is put in place.

With the top product pans removed, tilt and lift the panel from the
top. See image 2.

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CONTINUED

REMOVAL AND INSTALL OF FALSE BOTTOM PANEL
MODEL(S) - TSSU-HC

5

Center Shelf Bracket

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7

False Bottom Support

Tabs and Slots

STEP 5 (2 AND 3 DOOR MEGA AND NON-MEGA
UNITS)

When reinstalling the bottom support, ensure the rear tabs of the
suppor ts are seated into the correct slots in the top of the shelf
bracket. See image 5.

6

False Bottom Support

STEP 7 (ALL MEGA AND NON-MEGA UNITS)

When reinstalling the panel, ensure that the vertical bend is
positioned up and towards the front of the cabinet. See image 7.

False Bottom Front Bracket

Tabs and Slots

STEP 6 (2 AND 3 DOOR MEGA AND NON-MEGA
UNITS)

When installing the bottom support, ensure the front tab of the
suppor t is seated in the slot of the front bracket. See image 6.

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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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