True GDM-49-HC-TSL01 User manual

gdm freezer/refrigerator
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
manufacturing co., inc.INSTALLATION MANUAL
INSTALLATION MANUAL
gdm freezer/refrigerator
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
Wire Gauge Chart & Electrical Installation 3
Locating and Leveling 5
Installation of Legs or Castors 6
Sealing Cabinet to the Floor 8
SETUP
Standard Accessories 9
Cabinet Adjustment 11
OPERATION
Startup 13
Mechanical Temperature Controls Sequence of Operation 13
Electronic Temperature Controls Sequence of Operation 19
MAINTENANCE, CARE, CLEANING
Cleaning Condenser Coil 29
Important Warranty Information 30
Stainless Steel Equipment Care and Cleaning 31
General Maintenance 32
WARRANTY
Warranty 33
GDM-26-HC~TSL01
GDM-69-HC-LD
GDM-49-HC~TSL01

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TRUE
glass door merchandisers www.truemfg.com
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.
NOTICE TO CUSTOMER
WARNING: Use this appliance for its intended purpose as described in this Owner Manual.
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.
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 INFORMATION
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 fingers 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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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 refrigera-
tor, 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 quali-
fied 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 respon-
sibility 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 over-
heated 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
208-230/60/1
NEMA-6-15R
WARNING!DANGER!

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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.
INSTALLATION
12
3 4
5 6
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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WIRE GAUGE CHART WIRING INSTRUCTION ADVISEMENT
(115V Application Only)
NOTE: It is the customer’s responsibility to make sure receptacle
wiring meets all local electrical codes. TRUE recommends hiring a
licensed qualified electrician to make this change.
WIRING CONVERSION
At Receptacle Box:
1. Turn breaker off
2. Disconnect all wires from receptacle
3. Insulate red wire (tape or wire nut)
4. Connect black, white, and green
wires to 3 prong plug NEMA 5-20R per
instructions on receptacle.
At Breaker Panel:
1. With breaker turned off, remove wires
2. Remove double pole breaker
3. Install single pole breaker
4. Connect black wire to breaker
5. Insulate red wire
6. Turn breaker back on
1
2
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
115 Volts Distance In Feet To Center of Load
Amps 20 30 40 50 60 70 80 90 100 120 140 160
2 14 14 14 14 14 14 14 14 14 14 14 14
3 14 14 14 14 14 14 14 14 14 14 14 12
4 14 14 14 14 14 14 14 14 14 12 12 12
5 14 14 14 14 14 14 14 12 12 12 10 10
6 14 14 14 14 14 14 12 12 12 10 10 10
7 14 14 14 14 14 12 12 12 10 10 10 8
8 14 14 14 14 12 12 12 10 10 10 8 8
9 14 14 14 12 12 12 10 10 10 8 8 8
10 14 14 14 12 12 10 10 10 10 8 8 8
12 14 14 12 12 10 10 10 8 8 8 8 6
14 14 14 12 10 10 10 8 8 8 6 6 6
16 14 12 12 10 10 8 8 8 8 6 6 6
18 14 12 10 10 8 8 8 8 8 8 8 5
20 14 12 10 10 8 8 8 6 6 6 5 5
25 12 10 10 8 8 6 6 6 6 5 4 4
30 12 10 8 8 6 6 6 6 5 4 4 3
35 10 10 8 6 6 6 5 5 4 4 3 2
40 10 8 8 6 6 5 5 4 4 3 2 2
45 10 8 6 6 6 5 4 4 3 3 2 1
50 10 8 6 6 5 4 4 3 3 2 1 1
Reason for the instructions:
To advise that the electrical requirements have changed for some
current models.
The previous design for some models include a 4 prong NEMA
14-20R. This configuration required a 4-wire circuit. (see image 1.)
The current design for the same model may now include a 3 prong
NEMA 5-20R. This configuration requires a 3-wire circuit. (see image
2).
If your new TRUE model is replacing the same existing TRUE model
and the main power cord has changed from previous 4 prong to the
current 3 prong configuration, please follow the below instructions.

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LOCATING
A. Remove louver from the front of cabinet (see page 19 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.
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.
B
C
ARemoving skid from
bottom of cabinet.
When moving cabinet DO NOT push
on door hinges.
NOTE
P
NEPCO/CENTRALAB
1227-5
REMOVECOVERMAKEPOWERCONNECTION

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INSTALLATION OF CASTORS OR
OPTIONAL LEGS
Important Safeguard for installation of leg/castor. Images 1-5 demon-
strate 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 hand-
tightened 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 open-
end wrench or the tool provided. See image 3.
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.
Rail End
Lower Rail
Assembly
Snug Fit
Here
Leveling Shim
CastorLeg
Bearin
g
Race
Lower Rail Assembly
Snug Fit
Here
Rail End
Thread castor into the underside of
cabinet frame rail.
1
For leveling, insert the shim between
castor and frame rail.
2
Use the tool provided to tighten the
castor into place.
3
Thread leg into cabinet bottom
frame rail.
4
5
The end of the leg is adjustable for
easy leveling.

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POSITIONING OF THE
CASTOR IS CRITICAL.
ORIENT THE CASTOR IN
THE FORWARD POSITION
AS SHOWN.
INSTALLING OPTIONAL CASTORS ON
GDM-10 AND GDM-12 MODELS
FINAL LOCATION
A. Place Styrofoam corners behind cooler for cushion and carefully
tilt unit on it’s back.
B. Remove the louvered grill by removing four phillips-head
screws.
C. Remove the four bolts from the skid with an adjustable wrench,
and locate the four castors. Castors are placed inside cooler,
within the bubble wrap.
D. Install one castor in each of the four female threaded areas as
indicated.
NOTE: Two out of the four castors are designated with an “F” for
front.These are provided with hand-brakes. Position these castors in
FRONT of the unit.
E. When all castors have been threaded fully, replace grill and lift
unit; positioning it into its final location.
F. Ensure that the two front castors are positioned FORWARD
as illustrated and locked down with the hand-brakes.
WARNING: Unit may tip forward if procedure “F” is not strictly
followed.
G. Units final location should be adequately ventilated. Conditions
where heat exceeds 100ºF require an exhaust fan.
H. Ensure that the drain hose for hoses are positioned in the pan.
I. Free plug and cord from inside the lower rear of the cooler (Do
Not Plug In.)
WARNING: Warranty is VOID if ventilation is insufficient.
J. The unit should be placed close enough to the electrical supply
so that extension cords are NEVER used.
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.
K. Proper leveling of your TRUE cooler is critical to operating
success. Effective condensate removal and door operation will
be effected by leveling. Adjust castors or add shims.

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SEALING CABINET TO FLOOR
STEP 1 - Position Cabinet - Allow one inch between the wall and
rear of the GDM refrigerator to assure proper ventilation. For GDM
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
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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TRUETRAC ORGANIZERS: TrueTrac organizers for Glass
Door Merchandisers come with a package of shelf retainer clips.
Install clip on the side to the rear of organizer (see illustration) to end
of organizer that rests against left or right outside wall.
With correct installation, the retainer clip should separate the rear of
the organizer from the rear interior wall of the cabinet.
NOTE: No retainer clips needed on center organizers of a GDM-69.
Shelf
Clip
Shelf
Shelf
Organizer
Pillaster
(I-beam)
Shelf
Standards
Retainer
Clip
T-Series
& GDM-5
Airflow
Guard
SETUP
Shelf Bracket
O-Ring
Shelf Retaining Screw
Glass Shelf
O-Ring
Shelf Retaining Screw
G4SM-23RGS SHELF BRACKET ASSEMBLY
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.
WIRE SHELVES: Wire shelves are oriented so that cross support
bars are facing down.
NOTE: GDM-5 models include an airflow guard on the rear of
shelves to maintain an air space at the rear of the cabinet. (see illus-
tration).

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INSTALLING SHELVES
(GDM-30 ONLY)
Tape door handles back to the cabi-
net when installing shelves
WARNING!
Do not use pliers or any crimping tools when installing shelf clips.
Altering shelf clips in any way can lead to shelving instability.
SHELF INSTALLATION:
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.
Installing top tab of shelf clip
1
You may need to squeeze or twist
the bottom of the shelf clip to
install
3
Installing bottom of the shelf
clip
2
Shelf clip installation complete
4

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STEP 1 - Before removing slide door do not use the side latch.
Tension on the door cord is needed to execute these operation
instructions. Doors can not be removed unless placed in specific loca-
tions stated in these instructions.
SLIDE DOOR OPERATION (CABINET ADJUSTMENT)
STEP 2
Two Door Units: Slide the front door so it is centered on the
cabinet. The door can not be removed unless it is centered. See
image 1 for door channel openings and image 2 for centering
door.
Three Door Units: Slide the middle door to the right so it is
centered with the left edge of the right door. See image 3.
STEP 3 - After centering the door lift it up and tilt top of door towards
the back of the unit so the rollers are out of the top channel. Swing
the bottom of the door out of the bottom channel.Then remove the
door and set it down. See image 4.
STEP 4 - Slide right door to the left so left edge lines up with the
left edge of TRUE Logo located above the door. See image 5. Then
lift door out of track same way as image 4.
(TWO DOOR UNITS SKIP TO STEP 6)
4
(Three Door Units ONLY)
TRUE Logo
5
(Two Door Units ONLY)
1
(Two Door Units ONLY)
CENTERED DOOR
2
(Three Door Units ONLY)
3

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STEP 5 - Slide left door to the right so right edge lines up with the
end of the TRUE Logo located at the top of the door frame. See
image 6.Then lift door out of track same way as image 4.
(Three Door Units ONLY)
TRUE Logo
6
NOTE: Door cord will either be nylon cord or metal cable.
STEP 6 - Remove door cord from roller bracket. The black plastic
tab holding the door cord slides out the back. See images 7 & 8.
10
7
Door roller bracket with metal cable.
8
Door roller bracket with nylon cord.
9
Door closing to the left
STEP 8 - When reinstalling door, make sure door cord grommet
attaches to roller slot closest to pulley. See image 9.
STEP 7 - Let the door cord slowly retract back into the door side
channel.
TO ADJUST SLIDE DOOR
STEP 1 - After cabinet is installed in a final location and correctly lev-
eled check for any openings when the slide doors are completely closed.
If there are any gaps/openings between the closed doors and cabinet,
the doors will need to be adjusted.
STEP 2 - Using a 7/16" wrench or adjustable wrench and 1/8" Allen
wrench loosen roller and move along slotted hole. After adjustment
has been made tighten the roller into place. See image 10.
SLIDE DOOR UNITS WITH HOLD OPEN FEATURE
These instructions explain how to keep door in open position.
A. Slide the door open.
B. Latch the door in the open position from the back side of door
(notch in track).
C. Door latch in image 1 is in the open position.
D. Door latch in image 2 is in the closed position.
Rear view of door & track
1 2

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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 (1.7°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 countertop
- 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 ship-
ping damage has occurred. Remember, our factory warranty does not
cover product loss!
LIGHT SWITCH LOCATION: Light switch location depends
upon the GDM model. Most GDM models will have the light switch
located on the right side of the ceiling inside the unit. Most instances
the switch is located next to the temperature control. GDM-49’s and
72’s have the switch located on the right side of the evaporator hous-
ing along the interior ceiling. GDM-9’s, 5’s, and GDM-5PT’s have the
switch located on the left side of the ceiling. Some convenience store
GDM’s have the switch located behind the sliding doors above the
light bulb for example the GDM-33SSL-54 and the GDM-33CPT-54.
G4SM-23 models have an additional switch for the rotating display
shelves.The switch for the rotating shelves in the G4SM-23 models is
located under the sign frame.
OPERATION
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 restart 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 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.
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 specific 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.
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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1
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.
WHEN TO MAKE AN ADJUSTMENT TO A MECHANICAL TEMPERATURE CONTROL
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.
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.
W
A
R
M
E
R
C
O
L
D
E
R
60
30
45
40
35
50
55
15
20
25
10
5
We advise to make a mechanical temperature control adjustment only for a high altitude location.
Compressor
Ter minals
Ground
Terminal
To adjust the temperature control
take the control knob off to view the
cut-in screw. (See Photo Above)
Front of Temperature Control
Calibration
Screw
1 2
3
Cut-out Adjustment
Screw Allen (5/64" or 2 mm.)
Cut-in Adjustment
Screw Torx (T-7)
Compressor
Connection
ALTITUDE CORRECTION TABLE:
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
Compressor Connection
(double terminal)
HOW TO ADJUST A MECHANICAL TEMPERATURE CONTROL
Altitude Correction
Scale Guide for Measuring Back of Temperature Control
Bottom of Temperature Control

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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.
90
180
270
360
1
Scale Guide for Measuring
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, insert 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.
STEP 6 - Make sure to reconnect the wires to the proper spade terminal when reinstalling.
INSTRUCTIONS: CUTLER HAMMER TEMPERATURE CONTROL ALTITUDE ADJUSTMENT
STEP 1 - Unplug cooler.
STEP 2 - Turn the temperature control to the “9” position.
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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O
9
8
7
6
5
4
3
2
1
2
O
9
8
7
5
4
3
2
1
CUT
OUT
CUT
IN
COLDER
BUL. NO.
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°

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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.
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 evapo-
rator 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).
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 thirty
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
Outer most dial.
White tabs represent 15
minutes of defrost time.
Time of day.
Inner most dial.
2

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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 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 dirt 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 LAE control may be preprogrammed to initiate defrost by interval 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 restart. At this time “dEF” may still appear on the display for a short time.
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.