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The York S1-3400-3151 Limit Switch is a critical safety component designed for high-limit thermal protection in residential and commercial HVAC systems
This specific model does not feature a manual override
providing precise fuel regulation for large-scale boilers and water heaters
Normally Open contact logic maintains system safety protocols during flue or intake blockages
Note that this component is a reversing valve without coil
Carrier P283-0360 Fan Relay 320735-701 The York S1-3400-3151 Limit SwitchEnsure reliable blower operation and climate control with the Carrier P283 0360 Fan Relay. This HVAC fan relay is a crucial pilot component engineered to regulate high current circuits found in residential and commercial air handlers. As a specific OEM Carrier replacement part, it is designed for maximum compatibility with existing control boards and wiring harnesses, providing the necessary 24V coil switching to engage the indoor fan motor. The P283