TXV and Overloaded Evaporator

[54regcab]

How does a TXV handle an overloaded evaporator? Is there some type of "limit" to the amount of freon a TXV will allow to go through regardless of load conditions? Overloaded evaporators tend to happen during recovery from thermostat setback/high humidity etc.

[socotech]

It can only open to "wide open".

[SBKold]

The suction pressure sensor (equalizer) force acts to close the valve.

This is how hard shut off valves work.

[malcor]

How does a TXV handle an overloaded evaporator? Is there some type of "limit" to the amount of freon a TXV will allow to go through regardless of load conditions? Overloaded evaporators tend to happen during recovery from thermostat setback/high humidity etc.

The maximum limit of a TXV is its rated capacity, and the power element in the case of a MOP rated valve. The capacity of a TXV shouldn't be significantly greater than the design cooling capacity of the system.