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Enhanced System Safety: Accurate flame proving prevents gas buildup and supports secure combustion cycles
The WVFX 20 is pressure-relieved
Key Benefits Optimized Heat Transfer: Prevents thermal short-cycling by ensuring uniform temperature distribution across the heating surfaces
Sub-Master Control: Responds to thermostat branch signals for accurate reset of air velocity setpoints in variable air volume systems
Trane VAL9111 TXV 321894-709 Enhanced System Safety: Accurate flameThe Trane VAL9111 TXV is a heavy duty, OEM thermostatic expansion valve engineered for R 410A refrigerant systems. Specifically rated for a 3 ton capacity, this external equalizer expansion valve is a critical component for maintaining precise refrigerant metering in Trane and American Standard air handlers and evaporator coils. By utilizing an external equalizer connection, the VAL9111 compensates for pressure drops across the evaporator, ensuring