True TGU-3-HC, TGU-2-HC Installation Manual

TRUE

food service equipment, 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, & How to Connect to Electricity 3

Wire Gauge Chart 4

Locating and Leveling 5

Installation of Legs or Castors 6

SETUP

Standard Accessories 7

OPERATION

Startup 7

Mechanical Temperature Controls Sequence of Operation 8

Electronic Temperature Controls Sequence of Operation 14

INSTALLATION MANUAL

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TGU-2-HC

MAINTENANCE, CARE, CLEANING

Cleaning Condenser Coil 23

Important Warranty Information 24

Stainless Steel Equipment Care and Cleaning 25

TGU-3-HC

INSTALLATION MANUAL

TRUE FOOD SERVICE EQUIPMENT, 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

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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.

TOOLS REQUIRED

• Adjustable Wrench

• Phillips Screwdriver

• Level

UNCRATING

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)

ELECTRIC INSTALLATION & SAFETY
INFORMATION

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

• Lamps must be replaced by identical lamps only.

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

ELECTRICAL INSTRUCTIONS

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

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

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

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

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

WARNING: Compressor warranties are void if compressor burns

out due to low voltage.

WARNING: Power supply cord ground should not be removed!

WARNING: Do not use electrical appliances inside the food

storage compartments of the appliances unless they are of the type
recommended by the manufacturer.

NOTE: To reference wiring diagram, remove front louvered grill,
wiring diagram is positioned on the inside cabinet wall.

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

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WIRE GAUGE CHART

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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

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LOCATING

A. Remove packing material behind cabinet as a cushion. Carefully

lay the unit on its back to remove skid.

When lifting unit remember to leave the cabinet upright for 24 hours
before plugging into power source.

B. Remove skid by unscrewing all base rail anchor brackets. Place

skid to the side.

C. Carefully lift cabinet upright.

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

temperature and relative humidity.

Removing skid from bottom of
cabinet.

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.

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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INSTALLATION OF CASTORS OR
OPTIONAL LEGS

SECURING CASTORS

To obtain maximum strength and stability of the unit, it is important
that you make sure each castor is secure. The bearing race on the
castor of the top edge of the leg must make firm contact with the rail.

UNIT LEVELING

Four leveling shims have been provided for leveling castored units
positioned on uneven floors. Shims must be positioned between rail
end and bearing race. TRUE recommends a four shim limit to any
single castor.

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.

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, socket, or the tool provided.

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1

Thread four screws into castor in the underside of cabinet frame rail.

CAUTION

To avoid damage to lower rail assembly, slowly raise unit to upright
position after installing castors.

2

Anchor the four screws rmly to the base of the unit.

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SETUP

STANDARD ACCESSORIES

SHELVING INSTALLATION / OPERATION

STEP 1 - Position tray slide to align front to back (level) with rectan-

gular hole of the standard posts. Make sure tabs on the back-side of
the tray slide are facing down. Push in and slide down on both ends
so tabs are in the locked position. (See figure 1).

NOTE: Make sure that pan slide is level front to back within the
refrigerator or freezer.

STEP 2 - Repeat procedure with remaining tray slides.

NOTE: Figure 2 illustrates correct installation of tray slide.

OPERATION

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Tray S lide

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Tray S lide

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 (1.7°C) and freezers
an approximate temperature of -10°F (-23.3°C). Allow unit
to function several hours, completely cooling cabinet before
changing the control setting.

Temperature Control Location and Settings.

• Temperature control type will vary upon model and age of
cabinet.

• Mechanical control or electronic control without display:

- Inside cabinet

- Behind cabinet

- Behind front or rear access grill

• Electronic control with display:

- In 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 necessar y 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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