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When you are troubleshooting a pressure switch failure on a high-efficiency hydronic system
the System Sensor 120V bell is approved for outdoor use when installed with a Model WBB weatherproof backbox to protect the internal strike mechanism
Precise Flame Sensing: Advanced flame rectification technology prevents nuisance lockouts and ensures safe burner operation
Substitutions can lead to inefficient cooling cycles or heat exchanger stress
the SPDT configuration allows you to manage two separate circuits
Lochinvar & A.O. Smith 100167733 Relay 340793-762 When you are troubleshooting aThe Lochinvar & A. O. Smith 100167733 Relay is a specialized 24V HVAC control relay engineered for high reliability switching in commercial and residential hydronic systems. This OEM replacement relay is frequently utilized in Lochinvar boiler control boards and A. O. Smith water heater electrical circuits to manage low voltage signals that trigger high load components. As a direct replacement for the legacy RLY2708 part number, it maintains strict
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