Step1: Shut off gas and power, allow unit to cool completely before starting.
Step2: Remove access panels and disconnect the old safety valve assembly.
Step3: Note wiring, pilot, thermocouple, and gas tubing connections carefully.
Step4: Mount new valve securely to inlet/outlet fittings.
Step5: Reconnect thermocouple, pilot line, and gas lines firmly.
Step6: Check alignment, tighten all fittings, and perform a leak test.
Step7: Restore power, ignite pilot, and verify safe operation.
Step8: Use approved leak detector and ensure proper ventilation.