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  1. Residential HVAC Forum
    I am working on an a old R-22 American Standard 5 Ton Air Handler that has a failed TXV that is shut tighter than a clam. None of my local distributors handle Am Standard and have been unable to help me. The A/H Model is 2TEC3F60A 1000A Ser 6253FUN1V The numbers on the valve itself...
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