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choosing genuine Armstrong Air repair parts ensures exact compatibility and helps prevent common system failures caused by inferior aftermarket components
For technicians servicing legacy or modern York equipment
System Accuracy: Eliminates pen stuttering and erratic movement to ensure circular chart accuracy during critical temperature or pressure logging
The H-540 has a fixed trip point at 0
Trane VAL19486 Valve 323613-751 choosing genuine Armstrong Air repairThe Trane VAL19486 is a professional grade 1 ton thermostatic expansion valve (TXV) engineered for precise refrigerant metering in high efficiency residential and light commercial cooling systems. This OEM Trane replacement part, often manufactured by Sporlan, features a 3 8" ODF inlet and a 1 2" ODF outlet, ensuring a reliable sweat connection that maintains system integrity under high operating pressures. Designed specifically for R 410A refrigerant