how car ac thermostat works

Heres how an engine thermostat works. A car thermostat is a mechanical or electronic device used to control the temperature of your engine.

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If you thought adjusting your thermostat temperature to 75 degrees meant you would have 75-degree air coming out of your vent it does not.

. By the end of this cycle its in a cold gaseous state inside the evaporator at which point outside air is blown over it cooled and then sent to the cabin. To change the refrigerant between a liquid and a gaseous state the air-conditioning system works to control pressure and temperature. Simply put the thermostat acts as a switch in the cars cooling system.

The purpose of a car thermostat is to regulate coolant flow through your engine. The thermostat will then open at a temperature of 850-900 degrees Celsius to give way to the cooling water to carry out the engine cooling process that passes through the radiator. How Does It Work.

Without a thermostat your engine would run at an unsafe temperature causing damage to the system. Mounted on the bi-metal strip is a glass vial partially filled with mercury. If it is not heated the thermostat stays closed allowing the coolant to.

When needed the thermostat will work to regulate the engine cooling process. An AC system works by cycling refrigerant converting it from a gas into a liquid and then back again. The thermostat is basically a valve between the engine and the radiator.

The refrigerant enters the condenser as a pressurized gas from the compressor. When the coolant in the engine gets too hot this valve opens letting it pass to the radiator where it will cool down. W The W wire relays the heating system on.

The air-conditioning system in a car works by manipulating refrigerant between a liquid and a gaseous state. Its the job of the thermostat to. To radiate heat out of the system.

Changing the temperature of your AC thermostat simply determines if the run-cycle will be longer or shorter based on the current temperature in the home and what you set it to. As the refrigerant changes states it absorbs heat and humidity from the vehicle and allows the system to give off cool dry air. The thermostat in most cars is about 2 inches 5 cm in diameter.

If the engine is hot the thermostat opens up and allows the coolant to move. Once the engine reaches its operating temperature generally about 200 degrees F 95 degrees C the thermostat opens. The thermostat will then open at a temperature of 850-900 degrees Celsius to give way to the cooling water to carry out the engine cooling process that passes through the radiator.

How an engine thermostat works An engine thermostat regulates the temperature of the coolant in the engine by regulating the flow rate of the coolant. Newer luxury cars have thermostats -- you select a temperature and the control system does the rest -- but most cars simply run the AC compressor the entire time the AC button is activated. Its either allowing or blocking coolant from flowing from the motor into the vehicles radiator.

When the engine is cold no coolant flows through the engine. When the engine temperature drops the wax begins to harden and the thermostat starts to close. Its basically a valve that opens and closes to keep the engine temperature around 200F.

In other words if it is currently 75 degrees in your home and you lower the thermostat setting to 70 degrees in cooling it will have to run longer to achieve that temperature in the home. When needed the thermostat will work to regulate the engine cooling process. This process is continuous with the thermostat adjusting how far its open or closed while the engine is running.

In this video we take apart the heating and air condition unit to see whats inside and how it worksThere are four main functions in your cars heating and. Its either allowing or blocking coolant from flowing from the motor into the vehicles radiator. Its job is to block the flow of coolant to the radiator until the engine has warmed up.

The process of pressurizing the gas and moving it to the condenser creates heat but air flowing around the twisting tubes of the condenser cool the. As the engine temperature rises the wax expands and steadily pushes on a rod that opens the thermostat allowing coolant to flow. The car thermostat operates as a gatekeeper.

The parts of a coolant thermostat. The condenser is basically a radiator and it serves the same purpose as the one in your car. Simply put the thermostat acts as a switch in the cars cooling system.

It does this by regulating the flow of coolant through your engine. So how does a car air conditioning system work. AC Thermostats are simple little devices that use a bimetallic strip concocted from two different types of metal that are laminated together.

As the engine temperature rises the wax expands and steadily pushes on a rod that opens the thermostat allowing coolant to flow. Its the job of the thermostat to read the temperature of the engine and determine if the coolant needs to flow or not.

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