Introduction
Thank you for choosing the Smad 20 Cu.Ft Full Size Top Freezer Refrigerator, Model DDT-663WMU SS. This manual provides essential information for the safe and efficient operation, installation, and maintenance of your new appliance. Please read these instructions thoroughly before use and retain them for future reference.
Important Safety Information
Always follow basic safety precautions when using electrical appliances to reduce the risk of fire, electric shock, and injury. Ensure the refrigerator is properly grounded. Do not store explosive substances such as aerosol cans with a flammable propellant in this appliance. Keep ventilation openings clear of obstruction. Do not use mechanical devices or other means to accelerate the defrosting process, other than those recommended by the manufacturer.
Setup and Installation
Unpacking
Carefully remove all packaging materials, including foam and adhesive tape. Dispose of packaging responsibly. Inspect the refrigerator for any shipping damage.
Placement
Place the refrigerator on a flat, stable surface away from direct sunlight and heat sources. Ensure adequate air circulation around the unit. This refrigerator is garage-ready, designed to operate efficiently in a wider range of ambient temperatures.
Dimensions: 29.5 inches (W) x 30.9 inches (D) x 66.6 inches (H).

Image: Refrigerator dimensions and capacity breakdown.
Leveling
The refrigerator is equipped with adjustable leveling legs. Adjust them to ensure the unit is stable and level. This helps in proper door alignment and efficient operation.
Door Reversal
The doors of this refrigerator are reversible, allowing them to open from either the left or right side to suit your kitchen layout. Refer to the detailed instructions in the separate door reversal guide for this procedure.

Image: Reversible door feature of the refrigerator.
Power Connection
Connect the refrigerator to a dedicated 110 Volt AC outlet. Do not use extension cords or adapter plugs. Allow the refrigerator to stand upright for at least 2-4 hours before plugging it in to allow refrigerants to settle.
Product Overview Video
Video: A detailed overview of the Smad frost-free top freezer refrigerator, highlighting its dimensions, reversible doors, and internal capacity for both freezer and fridge sections.
Operating Instructions
Temperature Control
The refrigerator features a convenient temperature detector that tracks small changes and adjusts the cooling system. Use the temperature control dial located inside the fresh food compartment to set your desired temperature. The freezer section operates at ≤ -4°F, and the fridge section maintains temperatures between 32°F and 46.4°F.

Image: Interior layout with temperature control dial and separate freezer/fridge zones.
Storage Features
- Adjustable Shelves: The shelves slide in and out and can be placed at various heights to accommodate different sized items.
- Wire Crisper Drawer: An independent fresh-keeping drawer is provided for optimal storage of vegetables and fruits, helping to maintain their freshness.
- Freezer Capacity: 5.1 Cu.Ft.
- Fridge Capacity: 14.9 Cu.Ft.

Image: Key interior features including shelves, crisper, and LED lighting.
LED Lighting
The bright LED light inside the refrigerator compartment illuminates the interior, making it easier to locate items.
Care and Maintenance
Frost-Free System
This refrigerator features a frost-free freezer, eliminating the need for manual defrosting and increasing the efficiency of the freezer compartment.
Cleaning
The stainless steel finish is designed for easy cleaning. Use a soft cloth with a mild detergent and water to clean the exterior and interior surfaces. Avoid abrasive cleaners or harsh chemicals. Regularly clean the door gaskets to ensure a tight seal.
Troubleshooting
If your refrigerator is not operating correctly, please check the following common issues before contacting customer support:
- Refrigerator does not operate: Check if the power cord is properly plugged in and if the circuit breaker has tripped.
- Temperature is not cold enough: Ensure the temperature control is set correctly. Avoid frequent door openings. Check for proper air circulation around the unit.
- Unusual noises: Some operating noises are normal (e.g., refrigerant flow, compressor). Ensure the refrigerator is level and not touching a wall or other appliance.
- Excessive frost in freezer: While frost-free, ensure the freezer door is sealing properly and not left open for extended periods.
For more complex issues or if troubleshooting steps do not resolve the problem, please contact Smad customer support.
Specifications
| Feature | Detail |
|---|---|
| Model Number | DDT-663WMU SS |
| Product Dimensions (D x W x H) | 30.9" x 29.5" x 66.6" |
| Capacity | 20 Cubic Feet (Total) |
| Fresh Food Capacity | 14.9 Cubic Feet |
| Freezer Capacity | 5.1 Cubic Feet |
| Configuration | Freezer-on-Top |
| Color | Stainless Steel |
| Defrost System | Frost Free |
| Voltage | 110 Volts |
| Annual Energy Consumption | 352 Kilowatt Hours Per Year |
| Door Orientation | Reversible |
| Special Features | Adjustable Shelves, Adjustable Temperature, Wire Crisper Drawer |
| Installation Type | Freestanding |
| Item Weight | 185 Pounds |
| Certification | UL |
Warranty and Support
The Smad 20 Cu.Ft Full Size Top Freezer Refrigerator is covered by a 1-year warranty against defects. For warranty claims, technical assistance, or any inquiries, please contact Smad customer support. Please have your model number (DDT-663WMU SS) and purchase information ready when contacting support.
For further assistance, you may visit the Smad Store on Amazon.