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this model is strictly for single-stage 1H/1C systems
which prevents compressor flooding and extends the operational lifespan of your equipment
Fail-Safe Reliability: The mechanical spring return actuator ensures a predictable fail position during power interruptions
The robust design is engineered specifically for Weil McLain LGB series models
This HVAC collector box specifically fits 80% and 90%+ efficiency models
Lochinvar & A.O. Smith 100073343 Flame Sensor 320788-704 this model is strictly forThe Lochinvar and A. O. Smith 100073343 flame sensor is a critical safety component designed for precise flame rectification in high efficiency water heaters and boilers. Engineered to withstand high ambient combustion chamber temperatures, this direct spark ignition flame probe ensures the integrated control board receives a consistent microamp signal, preventing nuisance soft lockouts or ignition failures. This genuine OEM replacement part (formerly
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