Where should a manual shut off valve be installed for fuel burning equipment?

Installing a manual shut-off valve before any controls is critical for safety and operational efficacy in fuel-burning equipment. This placement ensures that the gas or fuel supply can be quickly and easily cut off in the event of an emergency or maintenance. By positioning the valve upstream of all controls, it guarantees that no fuel reaches the equipment unless it has passed through this safety feature. In the case of a malfunction or leak, being able to shut off the fuel supply promptly is essential for preventing hazardous situations.

Additionally, placing the shut-off valve before the controls allows for any service or maintenance to be carried out safely, minimizing the risk of accidents or exposure to dangerous components. This practice adheres to regulations and standards that aim to ensure the safe operation of heating systems, highlighting the importance of proactive safety measures in HVAC installations.