Air Conditioning Txv Valve

The symptoms of a system with a restricted thermostatic expansion valve txv are very similar to those of a system with a refrigerant undercharge.

Air conditioning txv valve.

A thermal expansion valve causes the air conditioner to operate more efficiently. 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. 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. Although often described as a thermostatic valve an expansion valve does not.

Service technicians often confuse an undercharged system with a restricted metering device. If the drier becomes saturated with moisture it releases it at the hottest times of the day. An expansion valve also called a tvx valve regulates the flow of refrigerant inside of a cooling system. Air conditioning systems are often located in homes and vehicles.

However the undercharged system will have low condenser subcooling levels. This moisture freezes in the expansion valve and deprives the evaporator of refrigerant. 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. It is now extremely important for the hvac technician to understand the design and operation of this type of valve.

It uses a sensing bulb or disc that opens or closes the diaphragm to allow the refrigerant to pass through.