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Fridges General Interest Refrigerators

How Cold Should A Refrigerator Be?

From food storage to cooling down a summer drink, it is a refrigerators job to keep your food icy and fresh. Many do not know exactly how cold a refrigerator should be.  Proper cooling is vital to making sure that your food is safe for your family to eat. So when checking up on proper fridge temperature, take a look at the following tips.
The Ideal Temperature
First and foremost, making sure your fridge is at proper temperature is the key to having a well-running appliance. So exactly what temperature should a fridge be?

The ideal temperature range for your fridge is 36 to 40 degrees Fahrenheit.

Your fridge should be cooling food anywhere in between 36 and 40 degrees Fahrenheit (2.2 to 4.5 degrees Celsius). How do you test this? Use a probe thermometer to gauge the temperature of the inside of food that has been sitting in your fridge for at least 24 hours. Another technique to take an accurate measurement is to directly place a standing thermometer in the refrigerator overnight.
Food Safety
While the correct fridge temperature is important, keeping food fresh and safe is the main goal. The Food and Drug Administration defines the Danger Zone between temperatures of 41 and 135 degrees Fahrenheit (5 and 57 degrees Celsius). In this temperature range, bacteria on food is allowed to grow uncontrollably. Thus, keeping food out of this zone is imperative. If you test the temperature of food in your fridge that is out of the safe range of temperature, take action! Turn your fridge to a cooler setting and discard contaminated food. If your food is below the recommended 36 degrees Fahrenheit, you may have another problem. Food kept close to or below freezing will begin to spoil faster. Indications that your food has been kept too cold include:

  • Veggies: When kept too cold, veggies will wilt and brown. Often, frost bitten veggies will become soft, also covered in a gel-like film.
  • Meat: These foods will turn brown around the edges and become spoilt if kept in between the freezing and the proper holding temperatures.
  • Sauces: Sauces will freeze, causing little to no problems. For some sauces, though, thawing may change the taste and texture (such as sour cream).

While most food is unaffected by being too cold, keep in mind that food kept in the Danger Zone could house bacteria harmful, and even deadly, to your health. If you are unsure about a certain food product, the best bet is to simply throw it out. Knowing what should the temperature be in a refrigerator can prevent problems with food going bad.
Keeping Your Fridge Cool
Some helpful tips to keeping your fridge cool will not only increase the safety of your food but can also decrease your electricity bill. First, make sure that all sealants are shutting properly. An open sealant can leak cold air, causing your fridge to run more often than usual. Also, make sure that all coolants are properly maintained by checking for any leaks or cracks in fridge hoses or lines. Last of all, check and make sure that your fridge doors are level and closing correctly.
A Safe, Cool Refrigerator
Keeping your fridge cool is vital to maintain proper food safety. So if you are unsure of how cold a refrigerator should be, take a thermometer and check food that has been in your own fridge for at least 24 hours. Always discard food that has been kept in the Danger Zone to ensure you and your family’s safety.
 

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General Interest Industry

Open, Hermetic and Semi-Hermetic Compressors

Hermetic compressors are frequently found in air conditioning and refrigeration applications. This article explores the attributes of this type of compressor.
What does Hermetic Mean?
In order to understand what a hermetic compressor is the first thing to do is understand what hermetic means. Something that is hermetic has been made ‘airtight by fusion or sealing’. In the case of compressors, this is usually done by welding the shell of the device together.
Hermetic Compressors
In a hermetic compressor, the components are isolated from the outside world. The compressor – and often the motor – is integrated within the refrigerant system. These units present the disadvantage that they can be difficult to service.
Accessing a compressor for repairs when it is sealed within a welded system is obviously not practical in the field without serious equipment. This means that often times an entire compressor system needs to be removed and replaced in case of failure of one of the components.
Semi Hermetic Compressors
An alternative to the hermetic compressor is the semi-hermetic compressor. These are similar in design but have one significant difference. In semi hermetic compressors the casing for the unit is not welded, but is instead sealed gasketed covers.
The advantages for servicing of this design are obvious. When a component breaks, the unit can be opened up and individual pieces replaced; this is preferable to having to replace the whole unit.
Open Compressors
The advantage of hermetic and semi-hermetic compressor systems is that there is no way for refrigerant gases to escape or leak from the system – they are airtight. The alternate technology of open compressors however can leak. This is because they rely rubber or leather seals to keep the units pressurized; and if not kept lubricated these systems can leak refrigerants over time.
Unlike hermetic systems – which can sit unused for long periods without losing gasses – an open system requires regular use and maintenance to ensure proper functionality.
Many mass produced consumer goods make use of hermitic compressors. They make financial sense where the cost of repairing a unit is larger than simple replacement. Since they require minimal maintenance, they are great choices for residential cooling applications.
Open compressors are a more popular technology for applications utilizing non-electric power. Vehicle cooling systems using a gasoline engine are a good match for this type of technology, but they do require periodic maintenance.
 

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Fridges General Interest Refrigerators

Who Invented the Refrigerator?

Most of us use our refrigerators every day to keep our food cold and to keep our beverages icy chilled. While the refrigerator  has become a staple in everyday life, not many know about its historical origins. So, exactly who invented the refrigerator? Take a look at the following timeline of who invented the fridge to get a good sense of the roots of this vital appliance.
A Timeline of Cooling
The concept of cooling food to keep it fresher longer has been around since the days of the ancient Egyptians, a culture which froze water at night to keep perishable foods cold during the day. But landmarks leading to the modern refrigerator happened in more modern times. From the discovery of the temperature lowering properties of cooling gases to revolutions in beer production, take a look at these founding fathers of cold.

  • 1720: Dr. William Cullen studies the cooling effects of liquids evaporating in a vacuum, the process by which we cool foods today.
  • 1834: Jacob Perkins produces his own ice making machine, using an ether vapor compression cycle.
  • 1856: James Harrison hires a brewery to make an experimental machine to cool beer.
  • 1859: Ferdinand Carre (France) invents the first refrigeration machine using water and ammonia.
  • 1873: The first portable refrigeration machine produced by Carl von Linde in Munich.
  • 1894: Linde AG (a refrigeration company started in 1878) installs a cooler at the Guinness Brewery in Ireland, revolutionizing how beer is manufactured.
  • 1911: General Electric unveils their refrigeration model, invented by a French monk.
  • 1918: The popular brand Kelvinator becomes a new brand, named after the famous scientist Lord Kelvin, who invented a temperature scale used commonly in science.
  • 1920: More than 150 different models of domestic refrigeration units available on the market, although domestic uses of fridges didn’t become popular until after World War II.
  • 1923: Kelvinator the most popular brand of fridge, dominating 80% of the market.
  • 1925: Electrolux introduced the D-Fridge into the market, one of their most popular models.
  • 1936: The common coolant R-134a is produced by Albert Henne, revolutionizing cooling efficiency in the home.
  • 1937: Refrigeration becomes commonplace in America, with more than two million households containing the appliance.
  • 1939: General Electric introduces a fridge with both freezing and cooling sections.
  • 1955: More than 80% of Americans have a refrigerator in their home.
  • 2005: 99% of Americans own and operate a fridge at home.

 
Invention of the Fridge
As you can see, the answer to who invented the refrigerator is a little more complex than a simple name. In reality, when we examine the invention of the refrigerator, the cooling units we know and love today are in fact a long compounding of countless scientific discoveries and engineering feats. From Lord Kelvin to the Kelvinator refrigerator, the road to the Common Cool has been a long and interesting one.
 

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Fridges General Interest Refrigerators

Purchasing the Right Amana Refrigerator Parts

When your Amara refrigerator needs repairing, you may begin to search for Amana refrigerator parts to fix the problem quickly and easily. But buying parts without knowing exactly what you need is often a trap for time and money. So before buying the first part that appears to be what you need, make a list of vital information that you’ll be sure to need. After that, find a dealer or website that can be relied upon to be a reputable source for your Amana parts for your refrigerator.
Know What You Need
First off, know exactly what parts that you need, how much they will cost, and any identifying information that you will need in order to purchase your parts. Being clear and exact when ordering Aman fridge parts will prevent headaches and will also ensure that the part you get is the right one. When deciding what parts you need, make sure to write down:

  • Name of the part: be specific as possible (i.e. “condenser fan motor” instead of just “motor for fan”)
  • Serial number or identification number: will most likely be marked somehow on the part itself
  • Model of refrigerator: locate this information in your owner’s guide or on the back of the fridge
  • A brief description of what’s wrong and what you’ve done to remedy the situation

Knowing all of this information and having it written down will smooth interaction with a sales representative or when shopping online. A brief description of the problem is important, but not vital. A repair technician might be able to look at the problem and proscribe a different remedy, saving you time and money.
Find a Retailer
Next, find a retailer of Amana refrigerator parts near you. Finding a reputable dealer is the best way to make sure that you’re getting authentic and, most importantly, brand new Amana replacements. One great way to find a dealer near you is to visit the Amana website and use their retailer locater tool. Another way to locate a dealer is to call appliance areas near you and simply ask a receptionist. Often, an appliance shop will be able to order an Amana part even if they don’t necessarily carry it in stock.
Shop Online
Ordering parts online is a great way to save money if you’re a do-it-yourself sort of person. But just be careful when purchasing parts from somewhere other than an Amana dealer. Always choose a reputable supply website. When shopping online for Amana parts, make sure that you double and even triple check the items that you are ordering. Make sure to check identification numbers, sizes, and part model numbers.
The Perfect Part
When searching for and purchasing your Amana refrigerator parts, make sure to have all the needed information with you ahead of time. After getting the info you need, find a dealer near you that either has the part in stock or can order one for you. Always be careful when shopping online for parts. Make sure that the item you’re ordering is from a trusted website and is guaranteed to work.

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Fridges General Interest Industry Refrigerators

Examining The Danfoss Compressor

Anyone who understands how refrigerators work understands the importance of compressors. These pieces of equipment are critical for making sure that any refrigerator or freezer functions properly. While many companies produce compressors to be used for a wide variety of different appliances, some stand out from the competition. Particularly Danfoss compressors. The long and short of a compressor’s function for refrigeration appliances is to draw out hot air and gasses from the inside of the appliance and releasing cooled gasses into the freezer and refrigerator which is what keeps the food cool or frozen.
While all compressors in refrigerators do the same thing, not all of them are the same quality. Danfoss refrigeration compressors enjoy a major reputation for being some of the best manufactured. In fact, Danfoss’s own website proudly proclaims their status as the world’s leading producer of compressors for both air conditioning units and refrigeration appliances. This company also produces many other parts such as Danfoss valves or other parts, but when it comes to making a high quality refrigerator unit you need to start with a good compressor or the rest won’t last.
Sometimes the exact type of compressor is related to the refrigerator model. For example, there’s a lot of information about the Danfoss BD35F Compressor, which is so named because it’s associated with the small portable Danfoss BD35F 12 Volt Fridge. Finding information on really specific serial numbers or models of compressors can become difficult, but considering how technical the issue of compressors is, often times the only way to find a lot of information online is if there’s a recall or something wrong with the part.
One of the benefits of trusting a long time producer like Danfoss is that their parts are more likely to be completely reliable and function the way that they’re supposed to. In short, a good summary of reasons to look for units with Danfoss compressors – rather than with competitors products such as Sawafuji – include:

  • High quality construction
  • A long standing reputation for quality
  • Household and commercial strength compressors
  • Wide selection

Unless the issue concerns repairs, many times you won’t need to know a lot about compressors. However, if this becomes an issue and a repairman recommends a Danfross compressor, you at least know that he is recommending a part that has a reputation for quality. Like most other companies in most industries, Danfross also offers a warranty to cover potential wear or damages for up to one year.

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Freezers Fridges General Interest Refrigerators

The Basics on Frigidaire Parts

Frigidaire is a manufacturer of kitchen and laundry appliances as well as air conditioners and dehumidifiers. Based on repair calls they have coined themselves “The most reliable brand” – but what do you do when something does goes wrong? Where do you find replacement parts or who do you call to service your Frigidaire refrigerator or other machine?
The Most Reliable Brand
All Frigidaire appliances include a comprehensive warranty. It’s best to register your product right away and keep the original purchase receipts to be sure that the warranty will be honored. The extended service agreement offers additional peace of mind by going so far as to replace a covered appliance with brand new one with comparable features should the extent of repairs give reason to. That would be the worst case scenario, otherwise they will help you locate the quality components you will need to keep your appliance running like new, or help you find a factory trained expert to do it for you.
Finding a Parts Distributor
So you’ve decided you are going to give it a go yourself. How do you go about finding the parts you need? The easiest way to start is with the Parts Distributor Locator on the official Frigidaire website. Simply type in your zip code to be routed through a directory of hundreds of trusted distributors to find the closest one to you. This is also the best route to take especially if you are still under warranty, to ensure the purchase will be covered. Purchasing from other discount websites can be risky unless you are absolutely sure you are buying Frigidaire brand replacement parts. Sometimes no name generic parts that claim to be compatible can have slightly different dimensions or a lower quality of material, making the pursuit of saving a dime or two futile.
Finding a Service Tech
Service is best found the same way as parts, through the Service Locator on the official Frigidaire website. There are a couple of options from there. If you are still under warranty you can call Frigidaire directly to get a diagnosis based on information you can provide over the phone to a skilled associate. From there they will either walk you through it if it’s something easy, or they can set up a service appointment for you. Extended service agreements can also be purchased here. Frigidaire offers protection plans for up to three full years. If you are no longer under warranty Frigidaire will direct you to an authorized service provider. It’s always good to go with someone who is certified to work on Frigidaire so you can be sure the parts are legitimate and the repairs done with the correct knowledge.
In the rare case you do need to find Frigidaire parts or hire someone to service your Frigidaire product, Frigidaire will want to help. Go through them directly to be sure the work is done right and no corners have been cut.
 
 

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Freezers Fridges General Interest Refrigerators

Used Refrigerators – Pros And Cons

New refrigerators can cost a lot more than many families can afford, so when the time comes to get a new fridge sometimes a family benefits from selling a used refrigerator while at other times a family needing a new appliance will be looking to actually buy a used unit. There are some definite advantages to going this route as opposed to shopping brand new at full retail prices, but there are also some potential negatives to going the used route. Knowing where to find the best used refrigerators for sale is also a large part of deciding whether or not going used is a good idea or not.
The pros of going the used route include price. Obviously any used refrigerators for sale, even if they are only mildly used, will be heavily discounted compared to a brand new fridge right out of the store. Depending on how well taken care of the fridge was, there’s a decent chance that it not only works as a stop-gap but it that appliance could last several years and work just as well as a brand new model, and without having to pay hundreds and hundreds of dollars more.
The potential cons are also fairly easy to recognize. There’s always the potential that a used fridge will break down earlier than a new model, and worries about being conned into buying a “jerry-rigged” fridge which will then break down later. Quality can be an issue, and you will want to keep an eye especially on very old models. Most likely you will also have to handle the transportation yourself.
If you decide the pros outweigh the cons then the first step is locating ads for used fridges. Generally speaking, you don’t find too many used appliance stores.  Because of this, looking at local classified ads is often the best way to get solid leads on where to find some cheap used or even free refrigerators. This not only includes newspapers or local penny savers, but also online sources like Craigslist or even online sites which specifically focus on serving as local online classified ads. This allows you to figure out the best options available at a local level, which is critical since you should never agree to buy used refrigerators without inspecting those appliances in person.
If you have friends who have experience with these appliances, ask for their assistance and hit up several places in one day. While they are somewhat rare, taking the time to find a used appliance store could help out immensely as many of them offer warranties on any appliances they sell, and that extra piece of mind is worth considering when looking to purchase an inexpensive used refrigerator.
 

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Freezers Fridges General Interest Refrigerators

Frost Free Fridge Freezers – What Are They?

Frost free fridge freezers are a recent innovation. In older days, freezers would acquire an enormous amount of frost around the edges and especially in the back to help create that “ice box” effect which keeps frozen foods frozen and gave the freezer its ability to keep food cool. Some early refrigerators would experience the same thing towards the back if it was set towards the highest level of cool. There are plenty of middle aged adults who probably remember having to break up the ice at the back of the fridge or the seasonal maintenance on the freezer.
Looking over reviews in search of the best frost free fridge freezers is an excellent way to save yourself a lot of maintenance and hassle. These newer models of combination refrigerator freezers are just that: frost free. By making sure that the freezers don’t accumulate frost, and that the frost or ice doesn’t spread down into the refrigerator, these appliances become much easier to keep clean and maintain. This is a huge plus, not to mention the fact that you get to maximize the space in your freezer. If you have an old model of freezer which creates frost and builds up ice, that growth keeps inching in from all sides, taking up space that could otherwise be used to store more frozen foods. By choosing to go with a frost free model, you avoid all of that hassle.
Integrated frost free refrigerator freezers are simply the models that include both a refrigerator and a freezer combination in one appliance. Most people who have a refrigerator use this type of a model. If you choose not to go for a frost free version, then that means every few months you need to take all the food out of the freezer and go to town on it with an ice scraper to remove almost all of the frost and then place all the food back in. This can be a difficult and annoying part of maintenance, and if you experience any power outage for any amount of time, a frosted freezer will cause a ridiculous mess that is not fun or easy to clean up.
Finding a cheap frost free fridge freezer can be a little difficult, as refrigerators in general are not extremely cheap. However as the technology improves to keep freezers frost free yet cold, the prices for these appliances are going to fall more and more in the average range that you would see for any type of new fridge. Searching online at comparison sites as well as classic online retailers like Amazon.com is a good start, but keep in mind additional shipping expenses which could easily erase any savings you find. Keep this in mind as you check out the prices of local retailers.
While it might not be huge news that many of the larger companies are moving towards making all major refrigeration and freezing units frost free, companies are even getting in on the process of making small frost-free fridge freezers in miniature size.  Whether for a man cave or for college dorm room, the ability to keep drinks, snack food, and even some frozen treats in a miniature fridge without worrying about frost is definitely going to win over many consumers.
Whether you’re looking at a full size frost free fridge freezer or simply looking for a smaller miniature freezer that won’t require the same maintenance as an older frost model, there are many options for consumers. The days of cleaning out a frosted over mess every few months should be over. Look for the new frost free freezer models and you won’t regret it.

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General Interest Industry Refrigerators

A Brief History of Liebherr Refrigerators

When it comes to learning about the history of Liebherr refrigerators, there is a lot of unique information that comes up from tracing this European Company’s history. In todays modern market many consumers who look for the absolute best refrigerator models are well aware of Liebherr refrigerators, which are designed to be among the best available and are offered in 21 different countries. Part of what makes these appliances so interesting is that the company that doesn’t just stick to home appliances, but also offers a wide array of other products and interests that often surprises people who first find this out in the process of researching Liebherr appliances.
The Liebherr Company started in 1949 producing cranes, and among many other interests still produces heavy machinery and cranes to this day. However if you’re interested in the history of the Liebherr refrigerators then you need to fast forward to the next year as 1950 saw the company produce their first home appliances. The Liebherr fridge line was born and has been going strong ever since. Many of the early selling points which set these appliance apart from their competition are the same characteristics these fridges are known for today: innovative designs, top-notch construction materials, specialized cooling set up and various specialty appliances such as their modern and very popular Liebherr wine refrigerator.
Production of Liebherr refrigerators picked up in 1955 and the mass production was on for a line that is approaching its 60th year. The models have changed over the years, but the constant movement towards better appliances continued and this line takes a lot of pride in being considered very high-end compared to the average home appliances. No doubt the recent development of “no frost” cooling technology for the Liebherr fridges will be looked back upon as a major development in this brand’s history.
According to the company’s website, Liebherr fridges are designed to bring the commercial level of quality to consumers. Not only can their appliances fully function in a commercial capacity but individual consumers also can purchase these refrigerators for their homes to enjoy that same level of quality that can’t get from many competitors. The history of Liebherr appliances is all about providing very high quality and staying well ahead of the curve compared to their competition. Whether looking for a home refrigerator or a drink cooler, when it comes to commercial level refrigeration, it’s hard to argue with the quality Liebherr fridges bring as modern designs might be newer and flashier than the historic models, but the quality level can’t be beat on either.

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General Interest Industry

MO99 R-438A For R22 Retrofits

DuPont™ is touting the benefits of their ISCEON® MO99™ (also known as R-438A) as an easy replacement refrigerant for R-22 retrofit projects, in this article we explore some of the attributes of this new MO99 refrigerant..
Many chemical options for retrofit projects can require extensive overhauling of the refrigeration or air-conditioning system being overhauled. The chief benefit of R-438A is that is operating requirements are fairly similar to those of R-22, which generally eliminates the need  for replacement of lubricants, or for refitting the equipment to handle significantly higher operating pressures.
For many installations the steps for a retrofit are relatively simple when using R-438A. First remove the old R-22 refrigerant using EPA approved recovery and recycling techniques, taking care to weigh the refrigerant removed. After this is to wise replace all critical seals, gaskets and filter drier  – this is an economical item, and there is no better time to do this than during the replacement of refrigerant.
After thoroughly checking the closed system for leaks, charge with the ISCEON MO99 refrigerant to 90% of the R22 standard charge level. Start up the system, and monitor and adjust as needed to obtain the ideal superheat levels. Ensure oil levels in the compressor are sufficient, and add additional oil if required. Once testing is completed you should find that you will have had to add a little more R-438 and the total charge will be close to 95% of the old R-22 charge levels.
Once done be sure to clearly label the cooling system so future services can easily see what lubricant and refrigerant is used within the hardware.
With R22 being phased out, clearly MO99 is a great option for retrofits; but what other benefits does it have?  Firstly, it is a non ozone depleting refrigerant. This HCF chemical does away with the ozone destroying problems of R-22. Secondly, it has benefits with regards to global warming.
Whatever your opinions on climate change, there is no denying the reality that the GWP (global warming potential) values of refrigerants is only going to get more attention in the future. ISCEON MO99 has a GWP that is 42% less than that of R-404A, one of its chief competitors in the field of modern refrigerants.
For more detailed instructions on the benefits of, and procedures for using MO99 contact Dupont or your refrigerant provider. As always, be cautious when servicing refrigeration and HVAC equipment, and read all provided documentation carefully before undertaking any procedures that are new to you.