Mr Frozen Dc 12-24v Refrigerator User Manual

Mr. Frozen DC 12-24V Refrigerator

Product Information

The MR. FROZEN DC 12/24V Refrigerator is a portable refrigerator that can be powered by a 12V or 24V DC power source. The refrigerator has a mechanical thermostat that automatically controls the temperature and maintains it within the limits specified in the user manual. The freezer compartment cools first and reaches below-freezing temperature within 1 hour, while the refrigerator compartment takes up to 4 hours to reach the proper temperature, depending on ambient conditions. The refrigerator does not have an on/off switch and turns on automatically when power is connected. The appliance has a low-voltage disconnect feature that protects the battery. Polarity is important in wiring this DC appliance. The red wire is the positive wire, and the black wire is the negative. The unit is not damaged by reverse polarity but will not run. Some components in the unit may be damaged if more than 31VDC is applied. The user must provide a fuse to protect the wiring, and a standard automobile fuse is recommended. The fuse should be wired to the positive (+) side of the system close to the positive battery terminal. If a longer connection cable is necessary, the wire gauge must be equal to or greater than the wire sizes recommended in the user manual.

Product Usage Instructions

Electrical Connection: Do not connect power until you have completed the installation instructions. Connect the power source to the refrigerator’s input voltage. Ensure that the red wire is connected to the positive terminal, and the black wire is connected to the negative terminal.
Fuse: Provide a fuse to protect the wiring. A standard automobile fuse is recommended, and the fuse should be wired to the positive (+) side of the system close to the positive battery terminal.
Cable Size: If a longer connection cable is necessary, the wire gauge must be equal to or greater than the wire sizes recommended in the user manual. Be careful that the input voltage at the appliance does not drop below the cut-out voltage of the compressor. Inadequate wiring or poorly made wire connections are very common reasons the appliance will not run or not run consistently.
Low Voltage Disconnect (LVD): The compressor electronics include a low voltage disconnect that protects the battery. Contact Mr. Frozen if other LVD limits are required.
Starting the Appliance: If the refrigerator has been transported on its side, allow 3 hours before applying power. This provides time for any oil trapped in the cylinder to settle back into the oil sump. Once ready, connect the 12 or 24 VDC power source, and the refrigerator will automatically turn on within about 1 minute.
Temperature Control: The temperature is automatically controlled by a mechanical thermostat, and no user adjustment is necessary or possible. The refrigerator will automatically maintain temperature within the limits specified in the user manual as long as the ambient temperature is between 60 & 90F (16 & 32C). Insertions of large warm food loads will temporarily result in higher temperatures.
Disposal: When disposing of your appliance, use an authorized disposal site. The refrigerant must be completely drained and collected by an authorized technician for recycling prior to disposal. Check with your local Environmental Agency for recommendations on recycling this appliance in your area. Remove the electrical connection before disposing of the appliance.

INTRODUCTION

You have purchased one of the most efficient refrigeration products available on the market today. The Mr. Frozen refrigerators are designed to provide years of efficient trouble-free operation. The design is optimized for energy savings with thick insulation and an efficient DC compressor. Before using the appliance, read through this manual carefully including all the information on safety, installation, operation, and cleaning. Please be careful moving and using this appliance. If you are unsure about any of these instructions, contact Mr. Frozen or your local product dealer for assistance.
IMPORTANT NOTES
IF THE APPLIANCE HAS BEEN HANDLED ON ITS SIDE OR STANDING ON END, IT SHOULD BE ALLOWED TO SIT IN THE NORMAL OPERATING POSITION FOR 3 HOURS BEFORE TURNING IT ON. PRIOR TO ADDING FOODSTUFF, THIS APPLIANCE SHOULD BE RUN FOR 4 HOURS ALLOWING THE INTERIOR OF THE CABINET TO COOL. THIS APPLIANCE OPERATES ON 12 OR 24 VOLTS DC (DIRECT CURRENT) ONLY! DO NOT CONNECT DIRECTLY TO AN AC (ALTERNATING CURRENT) POWER SOURCE.
Prior to Installation
Upon delivery, please check that the appliance has not been damaged during transport. It is not advised to connect an appliance that has been damaged, especially damage to the electrical supply cable or refrigerant circuit. In the event of damage please contact Mr Frozen or your local product dealer for assistance
General Safety
Before cleaning or repositioning the appliance, always disconnect it from the electrical power supply. Service the appliance only if you are a trained or authorized refrigeration technician. Do not use other electrical appliances (such as ice cream makers) inside of the refrigerating appliance
INSTALLATION WARNINGS
This appliance is heavy. Use of a furniture dolly or similar device is recommended. Be sure the electrical cable is not squeezed or bent when the appliance is being installed or moved. Be careful not to damage the condenser coil on the back of the refrigerator.
Unpacking and Cleaning
Remove all packaging and securing tapes from the appliance. As desired, wash the inside and outside of the appliance with lukewarm water and a mild soap or detergent. Abrasive or corrosive cleaning agents, steel wool, scouring sponges, or chemical cleaning agents should not 3 be used. After cleaning, thoroughly rinse and dry. You may want to leave the doors open allowing the compartments to ventilate for 20-30 minutes to get rid of residual odors.
Positioning
The area in which the appliance is to be installed should be relatively cool, dry, and suitably ventilated. The area should be protected against any beating rain and free of abundant dust. To ensure proper function, the appliance must be placed horizontally on a flat, firm, and stable surface resting level on all four supports. Use wood or metal shims to level the appliance if necessary. Do not place the appliance close to heat sources (heater, stove, boiler, chimney, etc.), and avoid exposure to direct sunlight. A minimum spacing of 3 inches (7.5cm) behind the refrigerator is highly recommended. This will provide sufficient airflow around the condenser resulting in more efficient operation and a longer appliance lifetime. Always keep the air vent openings of the compressor housing cover free from dust and obstructions.
ELECTRICAL CONNECTION (12 or 24VDC Only)
The refrigerator will automatically turn on when 12 OR 24VDC power is connected. There is no separate on/off switch and no requirement to select the operating voltage. Do not connect power until you have completed the installation instructions. Polarity is important in wiring this DC appliance. The red is the positive wire. The black wire is negative. The unit is not damaged by reverse polarity, but will not run. Some components in the unit may be damaged if more than 31VDC is applied Fuse The user must provide a fuse to protect the wiring. A standard automobile fuse is recommended and the fuse should be wired to the positive (“+”) side of the system close to the positive battery terminal. If a longer connection cable is necessary, the wire gauge must be equal to or greater than the wire sizes recommended on the following table. Be careful that the input voltage at the appliance does not drop below the cut-out voltage of the compressor. Inadequate wiring or poorly made wire connections are a very common reason the appliance will not run or not run consistently.

Cable Size

12V Cable Length 24V Cable Length

Operating Voltage Fuse

Generic Compressor Electronics Diagram

Connection Schematic Diagram

Low Voltage Disconnect (LVD)
The compressor electronics include a low-voltage disconnect. This feature is designed to protect the battery. Contact Mr. Frozen if other LVD limits are required.

OPERATION

Starting the Appliance
If the refrigerator has been transported on its side, allow 3 hours before applying power. This provides time for any oil trapped in the cylinder to settle back into the oil sump. Once ready, connect the 12 or 24-VDC power source and the refrigerator will automatically turn on within about 1 minute. The freezer compartment will cool first and reach below-freezing temperature within 1 hour. The refrigerator (fresh food) compartment might take up to 4 hours to reach the proper temperature, depending on ambient conditions. The refrigerator might cycle on and off during this initial cool-down period, this is normal.
Temperature Control
The temperature is automatically controlled by a mechanical thermostat. No user adjustment is necessary or possible. The refrigerator will automatically maintain the temperature within the limits in the table below as  long as the ambient temperature is between 60 & 90F (16 & 32C). Insertions of large warm food loads will temporarily result in higher temperatures.

Loading
A battery-powered refrigeration appliance has a cooling capacity lower than typical AC units. Because the compressor is small, the unit runs more efficiently but lacks the ability to cool large, warm loads quickly. Keeping a gallon or two of water in the refrigerator can help cool large loads quicker. It will also help to cool your food quicker if your food is packaged in smaller containers rather than large ones. Food packages more than 2 inches thick will cool slowly. Avoid placing warm foodstuff in contact with cold foodstuff. This appliance is designed for domestic use only! Specifically for the storage of food and drinks (foodstuff). It is not intended for commercial or industrial use. Do not store any poisonous items in the refrigerator, or flammable items near the refrigerator.
Cleaning
If there is any chance of spilling liquid on an electrical component, it is recommended to disconnect the refrigerator from the electrical power supply. Wash the cabinet with warm water and mild soap or detergent. Do not use abrasive or corrosive cleaning agents, chemical cleaning agents, steel wool or scouring sponges to complete this task as it may cause damage to the surfaces.
Defrosting
The freezer compartment will become progressively covered with frost. When the ice becomes very thick on the inner liner (>1”), complete defrosting should be carried out. Never use sharp metal tools to scrape or chip off frost from the interior compartment as this could damage the appliance beyond repair. Do not use heat sources, such as electric or gas heaters to complete the defrost process.
To carry out complete defrosting:

1. Disconnect the appliance from the electrical supply.
2. Have several dry towels or sponges and a bucket ready to collect the melting ice.
3. Remove any stored frozen food and store it in a refrigerator compartment or in a cooler, or wrap in several layers of newspaper and store it in a cool place.
4. Use a fan and/or warm moist towel to melt the ice in the freezer compartment. Do not use a sharp object like an ice pick. Leave the refrigerator door closed
5. When defrosting is complete, wash and dry the interior thoroughly.
6. Reconnect the appliance to the electrical supply and leave running (while empty) for 1 hour or until the internal freezer temperature is below –5C.
7. Replace the previously removed foodstuff.

Replacing light bulb

1. Disconnect the appliance from the electrical power supply. 6
2. Remove the plastic light cover by sliding it back towards the rear of the cabinet.
3. Replace with a new bulb (max 5 Watt) and replace the plastic light cover
4. Reconnect to the electrical power supply.

NOTE: All units are shipped with a LED light which automatically works for both 12 or 24V systems.

At the end of the appliance’s life
When disposing of your appliance, use an authorized disposal site. The refrigerant must be completely drained and collected by an authorized technician for recycling prior to disposal. Check with your local Environmental Agency for recommendations on recycling this appliance in your area. Remove the electrical connection wiring and also ensure that the door is removed to prevent young children from playing inside and potentially suffocating.
Energy Saving Advice
Install the appliance in a cool location in the house and avoid exposure of the appliance to direct sunlight. Allow adequate spacing around the rear of the cabinet for air circulation (3in. or 7.5cm) Avoid unnecessary frosting in the cabinet by packing all food and liquids in airtight packages or containers. Minimize the time and frequency of door opening. Ensure there are no obstructions preventing the doors from closing properly and forming a tight seal.

TROUBLESHOOTING

Before contacting a service technician, Mr. Frozen, or your local product dealer, check the following points. Most issues can be resolved over the phone by calling Mr. Frozen. If you call a technician to repair a fault without authorization from Mr. Frozen, Mr. Frozen may not cover the cost, even if the appliance is under warranty. Please read the Mr. Frozen warranty.

CUSTOMER RESPONSIBILITIES
Proper power supply, fuse, wiring, and connections. Service is required as a result of misuse or lightning. Replacement of light bulbs.
WARRANTY
Mr Frozen Refrigeration warrants, to the original owner, that this product is free from defects in workmanship and material for a period of one year from the purchase date. This warranty shall be limited to repairing or replacing, at Mr Frozen’s option and without charge to the purchaser, defective components. All warranty work shall be performed at a Mr. Frozen-approved facility. Shipping charges related to returning the product to the Mr Frozen’s facility are not covered under this warranty. However, this warranty covers shipping charges related to returning the repaired product to the customer within the continental United States. Outside the continental United States, all shipping charges are the responsibility of the customer and are not covered by this warranty. This warranty does not apply to damage or wear to the product caused by accident, abuse, misuse, neglect, unauthorized alteration or repair, or if the product was not installed in accordance with Mr Frozen’s printed installation and operating instructions. To obtain service under this warranty, the defective product must be returned to Mr. Frozen together with a return material authorization (RMA) number. Any product repaired or replaced under this warranty will be warranted for the balance of the warranty period with respect to the originally purchased product. Mr. Frozen Refrigeration will not be liable for any incidental or consequential damages, losses, or expenses arising from installation, use or any other causes. There are no express or implied warranties, including merchantability or fitness for a particular purpose, which extends beyond those warranties described or referred to above. For warranty claims or additional information, contact:

Product Specification

Twinstar Refrigeration Equipment Co., Limited

• [email protected].
• www.twinstar.cc.

References