[busterbrown]

Your Passport is my Bullet's twin. There is an access panel behind the cabinet door that houses your hot water tank and bypass valve. The cabinet door in focus is located next to the main entry door under the kitchen sink/counter top. Open that cabinet door to see the access panel. There are 2 square head screws you'll have to remove from either side of the panel.

You'll see your bypass valve along the cold water intake to the hot water tank. Remember, the valve flows water the direction it points to. Turn it 1 quarter turn to set it in bypass mode, reinstall the panel, and begin your winterizing process.