Sub-Zero refrigerators: Sub-Zero Refrigerators | Best Luxury Full-Size Refrigerators

Sub-Zero Refrigerators | Best Luxury Full-Size Refrigerators

From the moment a fig is picked, a clock begins to tick. For its flavor is never better, brighter, or sweeter than when it is perfectly ripe. Prolonging that freshness—that fleeting peak taste and texture—is the single-minded mission of Sub-Zero.


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Sub-Zero pioneered the art and science of food preservation since 1945

For over 75 years, our Madison, Wisconsin family-owned and -operated company has reimagined refrigeration with customizable units tested and built to last for over 20 years of daily use.

For over 75 years, our Madison, Wisconsin family-owned and -operated company has reimagined refrigeration with customizable units tested and built to last for over 20 years of daily use.

Fit to the exact needs of your family

All Sub-Zero refrigerators are built-in, or professionally installed for a precise, custom fit within surrounding cabinetry in your home.

With both stainless steel and panel-ready finishes available, along with nearly limitless configurations, Sub-Zero offers true design flexibility to complement, anchor, or disappear completely into your décor.

One space. Countless looks.

Precise, professional installation

Open your mind to every possibility


Request a brochure

To view the complete line of Sub-Zero products, find design inspiration, and learn how Sub-Zero keeps food fresher longer, please request a brochure.



Purchase a package and save

For a limited time, earn three additional years of protection or a rebate up to $2,500 with the purchase of a qualifying Sub-Zero, Wolf, and Cove appliance package.

For a limited time, earn three additional years of protection or a rebate up to $2,500 with the purchase of a qualifying Sub-Zero, Wolf, and Cove appliance package.


Experience a showroom

A visit—in person or virtually—to your nearest showroom is the ideal way to see and experience the complete line of Sub-Zero appliances.

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What Makes Sub-Zero Refrigerators Worth the Price?

The Sub-Zero refrigerator brand is considered a design standard and status symbol for many designers, real estate professionals and homeowners. However, the real reason Sub-Zero refrigerators and freezers have stayed at the top of the appliance industry for more than 75 years is simple: American-made quality and innovation. Since Westye Bakke built his first free-standing freezer prototype in his Wisconsin basement in 1943, and founded the Sub-Zero Freezer Company two years later, every Sub-Zero refrigerator manufactured has had to live up to Bakke’s goal of quality without compromise. Here are some of the many ways a Sub-Zero refrigerator is worth the price…

You’ll save thousands of dollars in fresh food.

Sub-Zero pioneered the dual refrigeration system with separate cooling systems for the refrigerator and freezer. Most refrigerators have just one compressor to push air from the freezer into the refrigerator. This air recycling from one compartment to the other causes unwanted odor transfers, the drying and decaying of fresh food and freezer burn on frozen foods. From the beginning, Sub-Zero refrigerators were engineered with two compressors so both the refrigerator and freezer compartments would maintain optimal temperature and humidity to better preserve your food. In addition, Sub-Zero includes dual evaporators and fans for each compartment as well. This design literally adds weeks of shelf life to your food, reducing spoilage and trips to the grocery store. This equates to serious savings. A study by the Natural Resource Defense Council found that the average American family of four ends up tossing the equivalent of $2,275 of food in the trash annually. That includes 40% of fresh fish, 23% of eggs and 20% of milk, not to mention fresh fruits and vegetables. There’s no doubt that Sub-Zero’s superior food preservation is key to saving both money and important resources.

NASA-inspired air purification in your kitchen.

Certain foods shouldn’t be placed together in typical refrigerators. Some fresh foods, like apples, naturally emit ethylene gas. If carrots are stored near them, they’ll taste bitter and leafy vegetables will decay faster. With this in mind Sub-Zero engineered an advanced Air Purification System with technology pioneered by NASA for the space shuttles. This system scrubs the entire volume of air in a Sub-Zero refrigerator approximately every 20 minutes. This significantly reduces odors, viruses and bacteria – as well as the ethylene gases present in some foods that cause premature ripening and food spoilage.

Sub-Zero Refrigerators offer superior water purification.

With many homeowners having concerns about water quality, Sub-Zero created one of the most advanced water filtration systems in the industry. While many refrigerators have carbon water filters, Sub-Zero’s design takes water filtration a step further. This microbiological water filter removes suspended particles, chemical pollutants, viruses and bacteria. Water and ice from a Sub-Zero refrigerator are safer and taste better.

Sealed in freshness makes a big difference.

Even the doors on a Sub-Zero refrigerator are made with food preservation in mind. The seals are so secure that some owners report no thawing of frozen foods after a multi-day power outage. With that kind of seal, you can count on Sub-Zero to build not only refrigerators, but freezers that are unparalleled in performance. Sub-Zero refrigerators have precise controls that maintain the temperature within one degree of its setting.

Convenience is valuable in our busy lives.

Many Sub-Zero owners find the various conveniences engineered into a Sub-Zero refrigerator to be part of its value. Nanotechnology is designed into many Sub-Zero models, ensuring that spills on glass shelves will puddle instead of spreading or dripping to another level. Service is also made easier with convenient removable grilles, so that your Sub-Zero refrigerator never needs to be pulled out of its opening for diagnosis or repair, saving both time and wear on your floor. And homeowners now enjoy a new level of convenience with Sub-Zero refrigerators and freezers that connect with the free Sub-Zero Group Owner App, allowing you to monitor and control your Sub-Zero appliances from your smart phone or tablet.

Sub-Zero = Longevity

According to home industry experts, you should expect to get 10 to 15 years out of a refrigerator. Sub-Zero regularly shatters that prediction. Clarke, New England’s Official Sub-Zero, Wolf and Cove Showroom, regularly talks to homeowners who have had their Sub-Zero’s for 20 years or more. In fact, Clarke President Sean Clarke purchase a home with a perfectly operating 31-year-old Sub-Zero refrigerator! Sub-Zero expects you to enjoy your refrigerator for 20 years or more. This is one of the most compelling reasons to buy Sub-Zero.

The refrigerator that sells homes.

If all the reasons above have not convinced you that Sub-Zero is worth the price, then there is one more very compelling fact: real estate listings that mention a Sub-Zero refrigerator sell faster and for more money. Really. An analysis of luxury home listings conducted by Zillow reported that mentioning a Sub-Zero refrigerator in the listing netted a 38% premium over other high-end listings with less prestigious refrigerators. In fact, according to Forbes magazine, “if a kitchen sells the home, then Sub-Zero sells the kitchen.” The esteemed business magazine reports, “Given the primary role the kitchen plays in the home, as a place to prepare meals, gather with family and the room that will sell the home faster and for more money, perhaps no kitchen appliance has more of that cache than Sub-Zero and its sister brands, Wolf for cooking and the new Cove dishwasher brand.”

See for yourself.

There’s nothing like exploring every model of Sub-Zero refrigerators, freezers, wine storage and more in person. The only place you can do this a  Clarke Showroom in Boston Seaport, Milford, Massachusetts or South Norwalk, Connecticut. Ask all of your questions, explore the hundreds of options and learn why, yes, Sub-Zero is worth the price..

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Choosing a thermostat for the refrigerator

Choosing a thermostat for the refrigerator

Maintaining a suitable temperature in the refrigerator or freezer compartment of the refrigerator is carried out using a thermostat. Some models have an additional thermostat to protect the compressor from overheating. The device differs in structure and functions depending on the type of refrigeration equipment.

Why you need a thermostat

It is possible to single out the functional difference between temperature controllers in refrigerators of various types. In compression refrigerators, the device switches off and on the electric motor of the compressor automatically according to the temperature in real time. Similar work is done in absorption refrigerators, only there the heater is switched on and off.

The device is characterized by a simple structure. There is a bellows tube on the surface of the evaporator. When the temperature of the evaporator drops below the required value, the pressure in this tube decreases. The decrease in pressure leads to compression of the bellows, the position of the lever changes, and the electrical circuit opens.

Basic varieties

Thermostats are divided into several large groups, the main ones are three. All of them have a similar external structure, but differ in the temperature at which they open the circuit. This value is adjusted at the factory, it is not recommended to make adjustments on your own, such an impact on the device will only lead to incorrect operation.

The type of a suitable thermostat can be found in the documentation for the refrigeration equipment.

Thermostats for single compartment refrigerators

Thermostats T-110, T-111, T-112 are mounted on refrigerators with one chamber. In terms of temperature indicators, all devices are the same, turning off at a temperature of -14 degrees Celsius, turning on at -12 degrees.

Models of thermostats in this group differ somewhat in external characteristics. First of all, this concerns the dimensions, the handle shaft and the bellows tube can have a different diameter. Some models have a cross bar for easy attachment. The length of the tube can be determined by the number printed on the body. For example, 0.7 is 70 centimeters. Some models of thermostats may have additional numbers and letters in the designation, T-112-1M instead of T-112.

In some cases, products are interchangeable. Using a special kit, you can install TAM-112 (new model) instead of T-110, the kit includes a nylon adapter, a nut and a mounting plate.

Thermostats for two-compartment refrigerators

Most often, for refrigerators with two chambers, thermostats are used, indicated by the symbols T-130, T-132, T-133, TAM-133, TAM-133-1M.

All devices in this group turn on at +4 degrees Celsius, turn off at -14 degrees. Some products have a special strap for attaching. The handle shaft and bellows tube may have different diameters, so the selection of the model is carried out according to the documentation of the equipment.

Thermostats for freezers

Temperature controllers T-144 and T-145 are used for installation in freezers. The T-144 thermostat differs from most models in that the manufacturer did not leave the possibility for independent temperature control. Usually there is a special rod for this. The thermostat turns on at a temperature of -20 degrees Celsius, turns off at -24 degrees.

There are four terminals on the side of the thermostat housing, two of them are double, this is the “ground”. Terminals numbered 3 and 4 are contacts through which electricity is supplied to the compressor. A special function is performed by contact number 6, it turns on a lamp signaling the excess of permissible temperature standards in the chamber. This contact is activated at -15 degrees Celsius.

Thermostats for refrigerators “Stinol”

The selection of thermostats for refrigerators of this brand is due to the fact that devices of various models can be used for them. These are not only TAM-133-1M and TAM-145-1M produced in our country, K-57 and K-59 regulators from the manufacturer RANCO are also used.

An important difference between thermostats for refrigerators “Stinol” from other models is the coating of the bellows tube with a vinyl sheath. The compressor is connected through contact number 6. The temperature range of various thermostats depends on the model of the refrigerator and the device itself.

Features of the thermostat

Thermostats of different models differ in sensitivity level, which affects the range of temperature fluctuations in the refrigerator. All thermostats are inherently considered to be manometric instruments, the temperature changes the pressure of the working filler, as a result of which the device monitors the change in temperature. Recently, electronic thermostats are increasingly being used in refrigerators, the operation of which depends on direct temperature measurement.

The device of the thermostat is simple. Its main elements are the lever mechanism and the contact scheme used for embedding in the electrical circuit of refrigeration equipment. The contacts are shielded from the mechanical structure by means of an insulating gasket.

The temperature-sensitive structure consists of a bellows, a metal balloon with corrugated walls. This element is elastic, capable of changing dimensions depending on pressure. Sometimes a membrane is used instead, to which a special tube is soldered. The essence of this does not change. Freon and chlorine metal can be used as a filler, the first is used more often, it is preferable in terms of its characteristics. Careful sealing system prevents leaks.

Freon in the system is in vapor form, its pressure changes with the ambient temperature. Also at the end of the tube, freon is present in liquid form. It is that part of the tube where the boundary between the liquid and vapor form of freon lies that reacts to changes in temperature.

How the thermostat works

With a change in temperature, there is a change in pressure. For example, when the temperature drops, the pressure also drops, the lever turns under the influence of a change in the size of the membrane, and at a certain moment the power supply opens. When the temperature rises, the lever will begin to move in the opposite direction, due to which the electrical circuit will close again.

An important role in this structure is played by the spring acting on the lever. If less force is applied to change the position of the lever, the opening will begin at a lower temperature. The same can be said about the increase in temperature. It is the adjustment of the required forces that affects the setting of the permissible temperature regime. In some models, a knob is used for this, but often the adjustment is made at the factory, then adjustments cannot be made to it.

Signs of a broken thermostat

Determining the need to replace the thermostat is not difficult. The following signs will indicate this:

  • non-stop operation of refrigeration equipment;
  • the temperature in the refrigerator compartment has taken negative values;
  • high temperature in the freezer;
  • equipment randomly turns off and does not turn back on for a long time (or at all).

The thermostat must be changed, such a device cannot be repaired. The replacement of the regulator should be carried out after the first signs of failure are detected, otherwise the wrong temperature regime will accelerate the deterioration of products.

How to replace thermostat

To replace the thermostat, you must first get to its location. In different models of refrigerators, the thermostat may be located in different places. For example, in most models of Atlant equipment, it is located under the door of the refrigerator compartment. Also, often the thermostat is installed in the evaporator of the chamber or in the refrigeration chamber itself.

Wherever the thermostat is installed, you must adhere to the following algorithm of actions:

  1. get to the location of the thermostat;
  2. disconnect the capillary tube;
  3. carefully remove the tube from the housing;
  4. disconnect from the circuit and remove the thermostat;
  5. carefully pick up a new bellows tube, make sure it is securely fastened;
  6. hook up all the necessary wires to connect to the network;
  7. install the thermostat in the appropriate place.

Professionals can easily cope with these actions. In most cases, no special tools are required to complete the job; a Phillips screwdriver is sufficient. The operation to replace modern electronic thermostats is a little more complicated, but in general this work is carried out according to the same scheme.