1. Introduction
This manual provides essential information for the proper installation, operation, and maintenance of your True Manufacturing GDM-49-HC~TSL01 Glass Door Merchandiser. Please read these instructions thoroughly before operating the unit to ensure safe and efficient performance. Retain this manual for future reference.
2. Safety Information
WARNING: Risk of electric shock. Disconnect power before servicing.
- Ensure the unit is properly grounded to prevent electrical hazards.
- Do not store explosive substances such as aerosol cans with a flammable propellant in this appliance.
- Keep ventilation openings in the appliance enclosure or in the built-in structure clear of obstruction.
- Do not use mechanical devices or other means to accelerate the defrosting process, other than those recommended by the manufacturer.
- Do not damage the refrigerant circuit.
- Only qualified service personnel should perform repairs.
3. Setup and Installation
3.1 Unpacking
Carefully remove all packaging materials, including tape and protective film. Inspect the unit for any shipping damage. Report any damage immediately to the carrier and your dealer.
3.2 Placement
Position the merchandiser on a strong, level surface capable of supporting its weight when fully loaded. Ensure adequate clearance around the unit for proper ventilation. Avoid direct sunlight or proximity to heat-generating equipment.
Figure 1: Front view of the True Manufacturing GDM-49-HC~TSL01 Glass Door Merchandiser.
3.3 Leveling
Use a level to ensure the unit is perfectly level. Adjust the leveling feet at the bottom of the unit as needed. Proper leveling is crucial for door alignment and efficient operation.
3.4 Electrical Connection
Connect the merchandiser to a dedicated, properly grounded electrical outlet. Refer to the unit's data plate for specific voltage and amperage requirements. Do not use extension cords.
3.5 Shelf Installation
The unit comes with 8 adjustable wire shelves. Install them by inserting the shelf clips into the desired slots on the vertical pilasters inside the cabinet. Ensure all clips are securely seated and the shelves are level before loading products.
Figure 2: Technical drawing illustrating dimensions and features of the GDM-49-HC~TSL01.
4. Operating Instructions
4.1 Initial Start-up
After connecting to power, allow the unit to run for several hours empty to reach its operating temperature before loading products. The factory-set temperature range is typically 33°F to 38°F (0.5°C to 3.3°C).
4.2 Temperature Control
The merchandiser features an electronic control system. Adjust the temperature settings using the digital display and buttons, typically located on the front or side of the unit. Refer to the control panel instructions for precise adjustments.
4.3 Loading Products
Load products evenly on the shelves, ensuring not to block the internal airflow or exceed the shelf weight capacity. Avoid placing items directly against the back wall to maintain proper air circulation.
4.4 Door Operation
The unit is equipped with self-closing glass doors. Ensure doors close completely after each use to maintain internal temperature and energy efficiency. The doors feature a positive seal torsion type closure system.
5. Maintenance
5.1 Cleaning the Interior
Regularly clean the interior surfaces with a mild soap and water solution. Rinse thoroughly and dry with a clean cloth. Do not use abrasive cleaners or sharp objects that could damage the surfaces.
5.2 Cleaning the Exterior
Wipe down the exterior with a soft cloth and mild detergent. For stainless steel surfaces, use a non-abrasive cleaner designed for stainless steel, wiping in the direction of the grain.
5.3 Condenser Coil Cleaning
The condenser coil should be cleaned regularly (monthly or quarterly, depending on environment) to ensure optimal performance and energy efficiency. Disconnect power before cleaning. Use a stiff brush or vacuum cleaner to remove dust and debris from the coil. An easily accessible condenser coil is located at the bottom front of the unit.
5.4 Gasket Inspection
Periodically inspect the door gaskets for tears or damage. Ensure they form a tight seal when the doors are closed. Replace damaged gaskets promptly to prevent air leakage and maintain efficiency.
5.5 Automatic Defrost
This unit features an automatic defrost system, eliminating the need for manual defrosting. Ensure the drain pan is clear and free of obstructions.
6. Troubleshooting
Before contacting service, review the following common issues and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Unit not cooling | Power supply issue, thermostat setting, dirty condenser coil, blocked airflow | Check power connection, adjust thermostat, clean condenser, ensure proper loading. |
| Excessive noise | Loose components, fan obstruction, unit not level | Inspect for loose parts, clear fan area, level the unit. |
| Doors not closing properly | Obstructed hinges, damaged gaskets, unit not level | Clear obstructions, inspect/replace gaskets, level the unit. |
| Water on floor | Clogged drain line, excessive humidity | Clear drain line, ensure doors are closed, check ambient humidity. |
If problems persist after attempting these solutions, contact a qualified service technician.
7. Specifications
The True Manufacturing GDM-49-HC~TSL01 is designed for commercial use, offering reliable refrigeration for various products.
| Feature | Detail |
|---|---|
| Brand | True |
| Model Info | GDM-49-HC~TSL01 |
| Item Weight | 630 pounds |
| Product Dimensions | 29.88 x 54.13 x 78.63 inches |
| Installation Type | Freestanding |
| Form Factor | Compact |
| Color Options | Black Standard, Optional White, Optional Stainless |
| Racks / Shelves | 8 Wire Shelves |
| Defrost System | Automatic |
| Door Hinges | Reversible |
| Door Material Type | Glass |
| Certification | NSF |
| Number Of Doors | 2 |
| Refrigerant | R-290 |
Figure 3: Detailed specifications and plan view diagrams for the GDM-49-HC~TSL01.
8. Warranty and Support
True Manufacturing provides a comprehensive warranty for this product. For specific warranty terms and conditions, please refer to the warranty card included with your unit or visit the official True Manufacturing website. For technical support, parts, or service inquiries, please contact your authorized True dealer or True Manufacturing customer service directly. Ensure you have your model number (GDM-49-HC~TSL01) and serial number available when contacting support.
True Manufacturing Contact Information:
Website: www.truemfg.com
Phone: Refer to your product documentation for regional contact numbers.
