i just purchased a Colman furnace for my mobile home it doesn't have a manual.... As I am installing it, I am not sure which wires are for power and which are for the thermostat. I have 5 wires on the furnace. red, white, yellow, green, and black. My power wire from fuse box has a black, white, bare wire.. Can you tell which wires from the furnace I tie into my power wire. Thanks,