What is the primary function of a TXV (Thermostatic Expansion Valve) in an HVAC system?

The TXV's primary function is to meter the flow of liquid refrigerant into the evaporator coil, ensuring the evaporator is fed with the correct amount of refrigerant for optimal cooling.

How does a TXV respond to changes in the evaporator's superheat?

A TXV responds to changes in superheat by adjusting the refrigerant flow. If superheat increases, the valve opens to allow more refrigerant; if superheat decreases, the valve closes to restrict flow.

What are the common components of a TXV?

Common components of a TXV include the valve body, diaphragm, spring, and sensing bulb.

What are the potential consequences of a malfunctioning TXV?

A malfunctioning TXV can lead to issues like inefficient cooling, evaporator icing, or compressor damage due to improper refrigerant flow.

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