Air Conditioning Txv Valve

This moisture freezes in the expansion valve and deprives the evaporator of refrigerant.

Air conditioning txv valve.

Although often described as a thermostatic valve an expansion valve does not. Air conditioning systems are often located in homes and vehicles. There are many components to an air conditioning system including the compressor condenser evaporator and thermal expansion valve or txv. A thermal expansion valve or thermostatic expansion valve often abbreviated as tev txv or tx valve is a component in refrigeration and air conditioning systems that controls the amount of refrigerant released into the evaporator and is intended to regulate the superheat of the vapor leaving the evaporator.

It uses a sensing bulb or disc that opens or closes the diaphragm to allow the refrigerant to pass through. If the drier becomes saturated with moisture it releases it at the hottest times of the day. If your air conditioner isn t cooling your house or car properly it may be low on refrigerant or it may have a faulty expansion. The symptoms of a system with a restricted thermostatic expansion valve txv are very similar to those of a system with a refrigerant undercharge.

It is now extremely important for the hvac technician to understand the design and operation of this type of valve. A thermal expansion valve causes the air conditioner to operate more efficiently. An expansion valve also called a tvx valve regulates the flow of refrigerant inside of a cooling system. Service technicians often confuse an undercharged system with a restricted metering device.

Since the minimum efficiency regulation changed to 13 seer in january 2006 most oem systems now incorporate a thermostatic expansion valve txv style metering device as the standard for air conditioning systems.