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If your existing maintenance log or part stamp shows 21-840
Designed as a universal replacement sequencer for various OEM brands
this probe monitors the burner's ionized gas to ensure the furnace control board maintains the gas valve circuit
Fail-Safe Integration: Designed for use with spring-return actuators to ensure the valve returns to its resting state during power loss
Trane VAL8576 TXV 30067439-890 If your existing maintenance logThe Trane VAL8576 is a professional grade 3 Ton mechanical TXV engineered for high pressure R 22 air conditioning and heat pump systems. Featuring a 500 PSI working pressure rating and a VX100A charge code, this thermostatic expansion valve ensures precise refrigerant metering across the evaporator coil to maintain optimal superheat levels. Ideal for replacing stalled or hunting valves, the VAL8576 provides a direct fit for Trane original equipment.
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