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Technicians typically observe delayed ignition across the burner rack or a "lazy" yellow flame in the carryover tube
OEM Reliability: Built to original York engineering standards for direct drop-in compatibility with furnace pressure switch mounts
it ensures precise voltage regulation for sensitive low-voltage components including contactors
This thermostat is designed for single-stage control applications
Lennox 70M29 Expansion Valve R-410A Technicians typically observe delayed ignitionThe Lennox 70M29 Expansion Valve is a critical OEM replacement part engineered for precise refrigerant metering in residential and commercial cooling systems. This thermostatic expansion valve (TXV) is designed to regulate flow based on evaporator load, ensuring maximum heat exchange efficiency and preventing liquid slugging in the compressor. The 70M29 is technically identical to 70M2901 and serves as a direct replacement for legacy part numbers
