Thermostatic Temperature Control

A thermostatic temperature control is a device that transforms a refrigerator or a freezer into a sophisticated lagering machine and allows you to control the temperature of the stored food products with improved accuracy and precision. This device is an indispensable ingredient inside refrigerators, freezers, air conditioners, heating and cooling systems and is often specially designed for the HVAC industry.


A thermostatic temperature control or expansion valve controls the quantity of refrigerant needed for the cooling coil. The temperature of the space which is being cooled determines the amount of refrigerant required. Food items are normally refrigerated to protect them from heat and resultant decay.

Refrigeration removes heat from a designated space and cools down that particular space to a few degrees below the surrounding temperature. To put it more simply, lowering the temperature of a space artificially to preserve food items (and sometimes medicines or medical supplies) is known as refrigeration.

A malfunctioning thermostatic temperature control can increase or decrease the temperature inside the refrigerator or freezer. The items stored inside will either thaw and start rotting due to the increased temperature or become frozen due to excessively lowered temperature.

Temperature control devices prevent your fruit juices, wines and alcohols from freezing while maintaining the freshness of veggies and other food items. This is true for refrigerated transport as well.

Air Conditioning

A cooling or heating unit receives its control signal from a thermostat. Absence of a thermostatic temperature control will make that unit non responsive to temperature fluctuations inside a room or house. It is the thermostat which tells the heating or air conditioning unit to turn off or turn on when the temperature inside the room or inside the house reaches a desired, ambient level.

Thermostatic temperature controls can be of two types – analog or digital. Digital thermostats are more sophisticated as you can programme them and fix schedules for different temperature ceilings during the day and night. Analog thermostats on the other hand have mercury switches.

Some homes have only one thermostatic temperature control while others have a few. There is a zone inside the house earmarked for each thermostat. Separate units heat and cool the different zones in case of independent cooling or heating.

There are usually two to three fan coil units in large residential houses. Fan coil units are also used in commercial buildings. Even a highly sophisticated unit will have individual temperature controls in each of the rooms inside a smart home.