Trane VAL9556 TXV 321894-709 while specific pulse sequences signify

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

High Reliability: Solid-state current sensing is more dependable for motor status than traditional auxiliary contacts or differential pressure switches

OEM Compatibility: Authentic York S1-025-35358-000 replacement ensures correct mounting and terminal alignment for Source 1 equipment

Can this unit be used for indirect acting sequences

Trane VAL9556 TXV 321894-709 while specific pulse sequences signifyThe 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