Heatco WR36H27MOD3-4 3/4" Natural Gas Valve 36H MOD 0-10 VCD

Step 1: Turn off the gas supply and disconnect electrical power to the unit.

Step 2: Access the valve and carefully remove the existing gas valve.

Step 3: Apply thread sealant and install the new valve in the correct flow direction.

Step 4: Secure all connections and reconnect wiring as per specifications.

Step 5: Restore gas and power, then check for leaks and proper operation.