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Lacquer sheets stacked — description and returns below the cascade board.
This specific model is a common HVAC electrical component used in various Carrier-brand families
making it a robust choice for technicians servicing residential and commercial HVAC units
Can this unit be used for indirect acting sequences
while specific pulse sequences signify an outdoor air temperature (OAT) sensor or coil sensor failure
Always verify the part number on your existing module or the boiler's service manual before installation
Trane VAL9556 TXV 321894-709 This specific model is aThe Trane VAL9556 (also identified as VAL09556) is a high precision 3 ton R410A thermal expansion valve designed for critical refrigerant metering in residential HVAC systems. Engineered with mechanical fittings, this external equalizer TXV utilizes a 1 4" SAE flare connection to provide accurate superheat control and ensure the evaporator coil maintains peak thermal exchange rates. This OEM Trane expansion valve is a non balanced port design with an
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