It is very rare that a superheat adjustment setting needs to be made in an existing system. If an adjustment is made, keep two things in mind:
1. Count the number of turns of the valve stem so that you can return the TXV valve to its original state if you don’t get the desired results.
2. After making any superheat adjustments, always observe system operation for several minutes (15-20) to insure you get the desired results.
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