Step1: Shut off the gas supply and disconnect power to the equipment before starting installation.
Step2: Remove the old pressure regulator carefully from the gas line using the proper wrench.
Step3: Apply approved gas-rated thread sealant to the regulator threads if required.
Step4: Install the new regulator in the correct gas flow direction and tighten securely.
Step5: Restore the gas supply slowly, test all connections with a leak-detection solution, and verify proper gas pressure during equipment operation.