# Parts of Air Conditioner Circuit and Temperature Unit

**URL:** <https://forumautomation.com/t/parts-of-air-conditioner-circuit-and-temperature-unit/11015>\
**Category:** Electronics\
**Tags:** electronics\
**Created:** [March 29, 2023, 2:49am UTC](https://forumautomation.com/t/parts-of-air-conditioner-circuit-and-temperature-unit/11015 "2023-03-29T02:49:36Z")\
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**Author:** ![Sudha\_m](https://forumautomation.com/user_avatar/forumautomation.com/sudha_m/32/6731_2.png) [@Sudha\_m](https://forumautomation.com/u/Sudha_m)\
**Post date:** [March 29, 2023, 2:49am UTC](https://forumautomation.com/t/parts-of-air-conditioner-circuit-and-temperature-unit/11015/1 "2023-03-29T02:49:36Z")

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**Air conditioner circuit**

- A closed loop made up of an evaporator coil, a compressor, a condenser coil, and an expansion valve is how an air conditioning system operates.
- Heat from the air within a structure is absorbed by the refrigerant, which then radiates it outside.

**Parts of an air conditioning system:**

**Evaporator Coil:** This internal component, which is exposed to the air being forced over it by the air handler or blower fan, is in charge of absorbing heat from the air.

**Compressor:** The air conditioning system’s compressor is its brains. In order to be pumped throughout the system, it compresses the refrigerant and increases its temperature and pressure.

**Condenser Coil:** This component, which is outside the building, is in charge of dissipating the heat that the refrigerant in the evaporator coil has absorbed. As the refrigerant cools and condenses into a liquid, the heat is released into the ambient air.

**Metering Device:** The air conditioning system’s high pressure and low pressure sides are separated by the metering device. And is made to keep the low side of the system’s refrigerant flow at a particular pace. If the metering device is defective or utilised with a capacity that is insufficient the evaporator will get an improper flow of refrigerant. **Expansion Valve:** The expansion valve controls the flow of refrigerant into the evaporator coil and is situated between the evaporator coil and the compressor.

**The basic processes in an air conditioner circuit’s operation are as follows:**

- The refrigerant is compressed by the compressor, increasing its temperature and pressure.

- The heated, high-pressure refrigerant is delivered to the condenser coil, where it condenses into a liquid and radiates heat into the ambient air.

- After passing through the expansion valve, when its pressure and temperature are lowered, the liquid refrigerant continues to flow.

- After entering the evaporator coil, the cool, low-pressure refrigerant absorbs heat from the air being blasted over it by the blower fan.

- The cycle is restarted when the refrigerant goes back to the compressor.

**What is the need of inverting and non inverting temperature in working of air conditioner**

- The compressor, which is in charge of compressing the refrigerant gas in the air conditioning system, is related to the inverting and non-inverting temperatures in an air conditioner.
- An air conditioner’s cooling operation depends heavily on the compressor.
- The temperature of the refrigerant gas at two distinct times during the compressor cycle is referred to as the inverting and non-inverting temperature.
- The temperature where the refrigerant gas transforms from a gas to a liquid is known as the inverting temperature.
- The non-inverting temperature is typically lower than this one. The temperature where the refrigerant gas transforms from a liquid to a gas is known as the non-inverting temperature. Usually, this temperature is lower than the temperature that inverts.