converting primary into rental, do the numbers work?

[Craig His]

Hi,

I am fairly new to BP, and first time post. I really enjoy real estate and would love to move into full time down the road. First things first, we are planning on moving to KC, from Chandler, Az. We do not need the money from this house to purchase a new house with 20% down. We currently purchased our home in 2010 for a really good deal. put 20% down and did a 20 year mortgage. Question is do I convert this to a rental here in chandler, to start my portfolio?  

mort = $1450 (taxes, insurance included)

hoa = $55

purchase price = $229K  (estimated value is $315K)

owe = $140K

typical rent in my area for a 3br/2ba = $1400 ish. 

our SFH is about 2100sf with a tandem 2 car garage which equals extra storage for possible renter. tile throughout the house and would not need to do anything to fix/repair to turn into a renal. Its ready to go!!

this above would give me negative cash flow. would it be beneficial to just sell this, and take all the equity/appreciation and purchase a rental in KC when we eventually move?

or should we refi for the remaining balance, which would give us a lower mortgage and such would have a positive cash flow?

anything I am missing? let me know i can provide more details