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If your refrigerator or freezer uses R600a as its refrigerant, then the law require it includes a warning message about its flammability. R600a is a commonly used natural refrigerant that is environmentally friendly with zero global warming potential and helps refrigerators to perform with more energy efficiency. Over the last decade, it has become prominently used in European refrigeration with a flawless safety record. In recent years, it has become more and more common to see R600a used in the North American domestic refrigeration market. All types of refrigerants (including R134a and R404a) are flammable, but R600a has a lower ignition point. However, refrigerators use such a small amount of R600a (typically under 2 ounces) that its inclusion inside the sealed system does not present a fire hazard. Still, it is important to maintain safety guidelines and to never try to service a unit's cooling system yourself. Only qualified technicians should service refrigerators, especially if their systems include R600a.
If your refrigerator or freezer utilizes a manual defrost operating system, it is important to defrost the unit when the frost on the freezer walls reaches 1/8 to 1/4" thickness. This will help to minimize energy consumption and ensure the unit is cooling efficiently. Some units may vary in their design. For best results, consult your specific product's user manual and follow the defrosting instructions. Generally, this process should work safely for most units: 1. Empty the unit, being careful to put stored items in a cooler 2. Turn the thermostat to the OFF position 3. Unplug the unit 4. For refrigerator-freezers with freezer compartments, position a shallow tray under the freezer section to collect dripping ice 5. As the unit's temperature increases and the ice beings to melt, use a sponge or towel to remove water from the walls and floor 6. When all ice has melted, dry the interior with a towel 7. Reconnect the power and set the thermostat to its original setting 8. Allow time for the unit to reach its normal operating temperature before reloading contents DO NOT use a sharp or metallic instrument to remove frost. This may damage the cooling system and will void your warranty. Instead, use the ice scraper included with your appliance.
It is strongly discouraged to use a vaccine refrigerator for anything other than its intended purpose. Storing personal items in a refrigerator will inevitably lead to more frequent openings of the door, which in turn can affect the internal refrigerator temperature and potentially damage stored contents. There is also the risk of contaminating food and personal items in the event that the vaccines are opened and spill on other items. The CDC is very clear about using a standalone refrigerator or freezer for vaccine storage.
ADA is an acronym for the Americans with Disabilities Act, a federal civil rights law enacted in 1990 that prohibits discrimination against people with disabilities in employment, transportation, public accommodation, communications, and governmental activities. In terms of Summit appliances, "ADA compliant" generally refers to an undercounter unit being between 32" and 32.5" high. This allows the unit (refrigerators, freezers, dishwashers, and laundry) to be installed under 34" high counters, the standard size to keep the counter in reach of those with mobility challenges. Alternatively, ADA compliant units can be of larger size so long as they meet a list of requirements for accessibility. To view our complete residential ADA compliant collection, click here. For our general purpose and medical ADA line, click here. For more about the Americans with Disabilities Act, visit the ADA Home Page of the Department of Justice at www.ada.gov.
The ideal position for storing vaccines is the center of the unit, a few inches away from the rear wall. Typically, the top shelf is too closely located towards a cooling vent, while the floor is thermally isolated. As a result, both locations can experience colder temperatures than the rest of the refrigerator space. It is also strongly discouraged by the CDC to store any vaccines or sensitive materials on door shelves. This area is constantly exposed to ambient temperature, and will therefore experience warmer temperature and bigger fluctuations than the inside of the unit.