1. Introduction
This manual provides essential information for the safe and efficient operation of your Smad 1.4 Cu.ft 3-Way Propane Refrigerator, Model DSG-40B2U(A). This absorption-type refrigerator is designed for versatile use, offering three power options: 12V DC, 110V AC, and LPG (Liquefied Petroleum Gas). It is suitable for various applications including RVs, caravans, homes, and outdoor camping.
Image 1: Smad 1.4 Cu.ft 3-Way Propane Refrigerator, showcasing its compact design.
2. Safety Information
Always read and understand all safety warnings and instructions before operating this appliance. Failure to follow these instructions may result in fire, explosion, electric shock, or property damage.
- Gas Safety: Ensure proper ventilation when operating on LPG. Check for gas leaks regularly using a soapy water solution. The required LPG pressure is 2.8Kpa (28mbar).
- Electrical Safety: Connect to appropriate power sources (12V DC or 110V AC) as specified. Do not use damaged cords or plugs.
- Placement: Place the refrigerator on a stable, level surface. Allow adequate clearance for ventilation around the unit.
- Children: Keep children away from the appliance, especially when operating on gas.
- Transportation: After long-distance transport, allow the refrigerator to stand upright for at least 12 hours before initial use to allow refrigerants to settle.
3. Setup and Installation
3.1 Unpacking and Initial Placement
Carefully remove the refrigerator from its packaging. Inspect the unit for any signs of damage. If damage is found, contact customer support immediately.
- Leave the refrigerator upside down for 12 hours.
- Then, leave it upright for another 12 hours.
- After this period, turn it on and adjust the thermostat to the highest setting for initial cooling.
Image 2: Visual guide for initial refrigerator setup after transport.
3.2 Power Connections
This refrigerator supports three power sources: 12V DC, 110V AC, and LPG.
Image 3: The refrigerator supports 110V AC, 12V DC, and LPG power sources.
- 110V AC: Plug the refrigerator into a standard 110V AC outlet.
- 12V DC: Connect the 12V DC cable to a compatible 12V power source in your RV or vehicle.
- LPG: Connect the provided gas hose and pressure regulator to an LPG tank. Ensure all connections are secure and leak-free. The required LPG pressure is 2.8Kpa (28mbar).
3.3 Door Reversibility
The refrigerator door is reversible, allowing you to adjust the opening direction to suit your installation needs. Refer to the detailed instructions in the full manual for the door reversal procedure.
3.4 Exhaustion for Indoor Use (Optional)
If using the refrigerator indoors with LPG, an exhaust system is required for safety. This involves installing an exhaust pipe through a wall to vent combustion byproducts outside. Additional components may be needed for this setup.
Video 1: Demonstrates the connection of the gas hose and the ignition process for the Smad Propane Refrigerator B2U-A, including the optional exhaust pipe for indoor use.
4. Operating Instructions
4.1 Control Panel Overview
The control panel is located at the top of the refrigerator and features controls for power selection, ignition, and temperature adjustment.
Image 4: The control panel with Power Selector Knob, Pulse Ignition Switch, Safety Valve, and Flame Indicator.
4.2 Power Mode Selection
Use the power selector knob to choose between GAS, DC12 (12V DC), or AC (110V AC) operation. Ensure only one power source is selected at a time.
4.3 Temperature Control
The refrigerator maintains a temperature range of 32°F to 50°F. Adjust the thermostat knob to your desired cooling level. For initial cooling or maximum effect, set the thermostat to the highest setting.
Image 5: The refrigerator's interior showing food storage and the adjustable temperature range of 32°F to 50°F.
4.4 Internal Storage Features
The refrigerator is equipped with adjustable and removable shelves, allowing for flexible organization of items of various sizes. Door drawers also provide additional storage.
Image 6: The interior of the refrigerator featuring removable shelves for customizable storage.
4.5 Quiet Operation
This absorption cooling system operates silently at 0 dB, making it ideal for environments where noise is a concern, such as RVs or bedrooms.
Image 7: The refrigerator's quiet operation (0 dB) is suitable for any environment, including sleeping areas.
5. Maintenance
5.1 Cleaning
Regular cleaning helps maintain the efficiency and longevity of your refrigerator.
- Unplug the appliance before cleaning.
- Wipe interior and exterior surfaces with a soft cloth and mild detergent.
- Avoid abrasive cleaners or solvents.
5.2 Defrosting
The refrigerator features an automatic defrost system, minimizing the need for manual defrosting.
5.3 Long-Term Storage
If storing the refrigerator for an extended period, ensure it is clean, dry, and the door is slightly ajar to prevent odors and mold growth.
6. Troubleshooting
If you encounter issues with your refrigerator, refer to the following common troubleshooting tips:
- No Cooling: Check power connections (12V, 110V, or LPG supply). Ensure the correct power mode is selected and the thermostat is set appropriately. For LPG, verify gas flow and ignition.
- Gas Not Igniting: Ensure the gas tank is open and has sufficient gas. Check gas line connections for leaks. Follow the ignition procedure carefully as shown in Video 1.
- Unit Not Turning On: Verify power supply to the unit. Check fuses or circuit breakers if using AC or DC power.
6.1 Handling Damaged Shipments
While precautions are taken during shipping, damage can occur. If your product arrives damaged:
- Inspect the package upon arrival.
- Document any damage with photos.
- Contact customer support immediately with your order number and description of the issue.
Image 8: Steps to follow when receiving a damaged shipment, including inspection, documentation, and contacting support.
7. Specifications
| Feature | Specification |
|---|---|
| Brand | Smad |
| Model Info | DSG-40B2U(A) |
| Capacity | 1.4 Cubic Feet |
| Product Dimensions | 17.7"D x 18.1"W x 23.6"H |
| Item Weight | 39 Pounds |
| Voltage | 12 Volts (DC), 110 Volts (AC) |
| Power Source | Gas (LPG), 12V DC, 110V AC |
| Defrost System | Automatic |
| Shelf Type | Removable |
| Number of Shelves | 2 |
| Door Hinges | Right (Reversible) |
| Certification | CE |
8. Warranty and Support
8.1 Warranty Information
The product is covered for 12 months against defects from the date of purchase.
8.2 Customer Support
If you have any questions, require assistance, or encounter any issues while using your Smad refrigerator, please contact Smad Electric Appliance customer support. Refer to your purchase documentation for specific contact details.