What steps must be taken after gas is turned on in a new system?

After the gas is turned on in a new system, checking for leakage in the piping system is a critical step. This is essential to ensure safety and prevent possible hazards such as gas accumulation or fire risk. Gas leaks can lead to serious incidents, so confirming that the joints, connections, and fittings are secure without leaks provides peace of mind and fulfills safety regulations.

While other actions are also important in the initial setup, they follow different priorities. Checking for gas presence is necessary but is typically part of the procedures leading up to turning the gas on. Purging the piping system is vital for clearing out any air or contaminants to ensure proper gas flow but is typically done before the system is pressurized. Inspecting the appliances for damage is also crucial but is more focused on the appliances themselves rather than the integrity of the gas piping system. Therefore, the primary focus immediately after the gas is turned on should be to check for any leaks in the piping system.