True Manufacturing Company GDM Series Installation Manual Download Page 3

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TEC_TM_020 REV. A

07/9/2020 

     Page 1 of 20

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.

Summary of Contents for GDM Series

Page 1: ...Precautions 1 Proper Disposal Connecting Electricity Adapter Plugs 2 INSTALLATION Ownership Uncrating 3 Wire Gauge Chart Electrical Installation 4 Locating and Leveling 5 Installation of Legs or Cast...

Page 2: ...TRUE glass door merchandisers health safety timer www truemfg com TEC_TM_020 REV A 07 9 2020 Page iii of 20...

Page 3: ...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 R...

Page 4: ...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 c...

Page 5: ...e 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 an...

Page 6: ...0 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...

Page 7: ...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 conde...

Page 8: ...o 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...

Page 9: ...eft 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 Ap...

Page 10: ...or able to wiggle out of the shelf standard SHELF CLIP 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...

Page 11: ...the UPS off press the power button for approximately 2 seconds you will hear a constant tone 1 second and release after two short beeps Quickly press the POWER button twice can turn off or turn on the...

Page 12: ...listed capacity of the UPS Turn the UPS off unplug at least one piece of equipment from battery outlets reset the circuit breaker and turn the unit on On Off On None Electrical Wiring Fault This indic...

Page 13: ...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 tha...

Page 14: ...d Servicing Delay OPERATION The Health Safety Timer cabinet s operation is determined by the electronic control The electronic control constantly monitors the cabinet temperature The control will acti...

Page 15: ...the non adjustable preprogrammed temperature c The control is designed to read and display a cabinet temperature not a product temperature This cabinet temperature may reflect the refrigeration cycle...

Page 16: ...AY LEGEND LED INDICATORS BUTTONS LED Off Locked LED ON Unlocked LED will blink to notify the key detection 2 CLEARING THE HEALTH SAFETY ALARM LOC HLA 1 Touch Enter twice to unlock the display This wil...

Page 17: ...value 00 5 Touch once to change the value to 01 6 Finally touch Enter 4 ADJUSTING THE SET POINT 1 Touch Enter twice to unlock the display 2 Touch Enter again to display the main menu InF will be the...

Page 18: ...nstall reattach the grill to the magnets on front of the cabinet and reinstall the screw on top of the grill Phillips Screwdriver Stiff Bristle Brush Adjustable Wrench Air Tank or CO2 Tank Vacuum Clea...

Page 19: ...ust 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...

Page 20: ...ffice 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 wi...

Page 21: ...eplaced 3 Micron level vacuums must be achieved to ensure low moisture levels in the system 500 microns or lower must be obtained All claims for labor or parts must be made directly through TRUE All c...

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