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GENERAL SAFETY INFORMATION 

CAUTION:  Electric Shock Hazard 

  All servicing requiring access to non-insulated components must be performed by qualified service 

personnel.  Do not open any access panels which require the use of tools.  Failure to heed this warn-
ing can result in electrical shock.  Disconnect this appliance from electrical power before performing 
any maintenance or servicing. 

 

WARNING:  Injury Hazard 

All installation procedures must be performed by qualified personnel with full knowledge of all applica-
ble electrical codes.  Failure could result in property damage and personal injury. 
 

WARNING Electric Shock Hazard 

Appliance must be plugged into a properly grounded receptacle to prevent possible shock hazard.  
Electrical shock will cause death or serious Injury.   

 

CAUTION:  Burn Hazard  

Interior surfaces of the appliance may be HOT to the touch, and can cause serious burns. 

 

GENERAL INFORMATION

 

 



This appliance is intended for use in commercial establishments, where all operators are familiar with the 
appliance use, limitations and associated hazards.    



Operating instructions and warnings must be read and understood by all operators and users. 



This appliance is intended for use in holding pre-cooked foods for human consumption.  No other use is rec-
ommended or authorized by the manufacturer or its agents. 



When battery reaches 0%, it is no longer safe to hold potentially hazardous foods. 



Cleanliness of this appliance is essential to good sanitation.  Read and follow all included cleaning instruc-
tions and schedules to ensure the safety of the food product. 



All included trouble shooting guides, component views and parts lists are included for general reference, and 
are intended for use by qualified service personnel. 



Knowledge of proper installation, operation and maintenance procedures is essential to ensure the safe oper-
ation of this appliance. 

 

SERVICE / SAFETY 



Always have dry hands prior to using the piece of equipment. 



Turn OFF the unit anytime the cabinet is not in use. 



If an electrical shock is felt when touching the cabinet, disconnect the power immediately and call Carter-
Hoffmann Technical Service for assistance. 



If the power cord is frayed or the plug damaged, DO NOT plug into the electrical power receptacle.  If it is 
already plugged in, turn off the proper circuit breaker, usually located in the building’s breaker box, then dis-
connect the plug. 



Disconnect the power cord before attempting any repairs to the appliance. 



Repairs to this unit must be by qualified personnel. 



DO NOT SPRAY WITH WATER OR CLEANING SOLUTIONS, or submerge the heating unit.  Components 
and wiring present a high shock hazard when wet. 



Disconnect heating unit when cleaning cabinet or heating unit. 



Both the interior and exterior surfaces of this appliance can be hot to the touch and may cause burns. 

Summary of Contents for GTH12

Page 1: ...ation Instructions are read and followed Damage to the appliance may occur if these in structions are not followed This manual is considered to be a permanent part of this appliance This manual must r...

Page 2: ...or its agents When battery reaches 0 it is no longer safe to hold potentially hazardous foods Cleanliness of this appliance is essential to good sanitation Read and follow all included cleaning instru...

Page 3: ...the skin wash immediately and thoroughly If electrolyte enters the eyes also seek medical attention Neutralize spilled electrolyte with a solution of 1 lb bicarbonate of soda baking soda to one gallo...

Page 4: ...rsal tray slides Fully adjustable at 1 3 4 spacing Standard spacing at 3 1 2 centers HEATING SYSTEM Top mounted blower heater for even heat distribution High efficiency DC motor with cooling fans Full...

Page 5: ...r the appliance is properly grounded Unpack the cart and heating unit Ensure that all packing materials and protective plastic has been removed from the unit Inspect all components for completeness an...

Page 6: ...ZARD Allow the unit to cool before performing any cleaning or maintenance procedures WARNING ELECTRIC SHOCK HAZARD DO NOT spray or splash water on the heater con trol panel timer or wiring IMPORTANT C...

Page 7: ...y will show cabinet temperature setting Press the Temperature Button to view the actual cabinet tempera ture 4 The display will show PrE until the unit has reached the de sired set point Pre heat to d...

Page 8: ...cants for stainless steel products Do not use oil PERIMETER BUMPERS Vinyl which has been dislodged from the channel due to severe bumping or scraping can be pried back into place with a common screwdr...

Page 9: ...Fig 1 on the left and right sides of the battery tray towards the center of the cart Twist the knobs one quarter turn until they remain in the out unlocked position 4 Pull the battery tray away from t...

Page 10: ...y tray towards the center of the cart Twist the knobs one quar ter turn until they remain in the out unlocked position Fig 1 4 Pull the battery tray away from the cart using the formed met al handle i...

Page 11: ...ORE PERFORMING THESE PROCEDURES CABINET MUST BE COOL AND ALL FOOD MUST BE RE MOVED INSTALLATION CONTINUED 12 Next twist the knobs one quarter turn until they release from the out unlocked position Fig...

Page 12: ...20 Plug 18607 0019 Terminal Block 6 pos 603 18612 0162 Hoop Element 1 400W 18612 0163 Hoop Element 2 400W 18614 0272 Fan Guard SC120 W15 18614 0275 Fan Guard SC80 W2 18614 0303 Muffin Fan 24VDC 26 CFM...

Page 13: ...WIRING SCHEMATIC 13...

Page 14: ...y Replace both batteries Damaged wiring Repair wiring Damaged relay Replace relay Damaged controller Replace controller Damaged heating element Perform ohm reading Replace element Unit overheats Setpo...

Page 15: ...he equipment in accordance with the procedures described in the Operation Manual 6 Carter Hoffmann is NOT responsible for any loss of the customer s income loss of food product extra labor charges or...

Page 16: ...ter Hoffmann neither makes nor assumes and does not authorize any other person to make or assume any obligation or liability in connection with its products other than that covered in this warranty Th...

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