Air Conditioning Txv Valve

It is now extremely important for the hvac technician to understand the design and operation of this type of valve.

Air conditioning txv valve.

The txv valve thermostatic expansion valve is an ac part designated for regulating the rate of flow of refrigerant in your air conditioning system as you can imagine you need this component to operate properly in order for your system to work efficiently and effectively. 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. An expansion valve also called a tvx valve regulates the flow of refrigerant inside of a cooling system. If the drier becomes saturated with moisture it releases it at the hottest times of the day.

It uses a sensing bulb or disc that opens or closes the diaphragm to allow the refrigerant to pass through. Txv thermostatic expansion valve air conditioning systems contain a receiver drier that cleans and absorbs moisture from the refrigerant. A thermal expansion valve causes the air conditioner to operate more efficiently. Air conditioning systems are often located in homes and vehicles.

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. This moisture freezes in the expansion valve and deprives the evaporator of refrigerant. Service technicians often confuse an undercharged system with a restricted metering device.

However the undercharged system will have low condenser subcooling levels.