As any manufacturer will do, the tank you have is preassembled with a few fittings/hoses etc to make final assembly faster. The Tee was my clue for the drain, current production FWC include a valve or two to enable draining the water heater along with the water tank for winterization. Check out pages 8-12 in the owner's manual for details.
My tank has a different form factor from your new one, it's a few inches shorter in height, plenty of room above it. My "Settee" cabinet is also taller than norm from what I can tell. But, the fill/drain vent hoses emerge under the refrigerator cabinet, lots more room to bend as they make way up to the fill hatch on the front left corner. I happen to be in the middle of reassembling that section now, I'll get a few pics for you today.
edit: Changed fill/drain to fill/vent
Edited by wuck, 12 November 2016 - 05:56 PM.