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Tampering with the seal or adjusting the spring tension is not recommended and should only be performed by authorized repair centers
Key Benefits: High-Temperature Durability: Engineered with Viton rubber for superior resistance to heat and chemical degradation in HVAC applications
common failure points in generic aftermarket relays
With a maximum rating of 100 psi and 200°F
Resideo L4008E1040 Controller 320734-701 Tampering with the seal orThe Resideo L4008E1040 is a heavy duty High Limit Aquastat Controller engineered for precise temperature regulation in hydronic heating systems, storage tanks, and industrial boiler applications. This immersion type controller features a Single Pole Single Throw (SPST) micro switch designed to break the circuit on temperature rise, providing critical over temperature protection. With an operating range of 130 270F and a factory set stop at 250F, it