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This kit specifically replaces legacy part numbers SP12556 and AP12556-2
High Temperature Resilience: Rated for surface temperatures up to 175°F
Does this unit require a separate disconnect
As a critical gas control valve component
York S1-129334 Expansion Valve 323613-751 This kit specifically replaces legacyThe York S1 129334 is a professional grade thermostatic expansion valve (TXV) designed for precision refrigerant metering in residential and light commercial evaporator coils. Featuring 5 8" x 7 8" ODF solder connections, this valve ensures a leak free, high integrity joint critical for high pressure systems. As the direct replacement for S1 526 36290 000, it maintains factory spec superheat levels, protecting the compressor from liquid slugging while
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