My heater is stuck on the vents. i took apart the control part, and that is all fine and dandy. then i removed the part where the blower motor is because i know there was some vacuum lines under there (and now i see i can access it from the interior as well, and i found some lines disconnected. there is a purple line with kind of a cone thingy on the end to connect it to. then there is a grey one with a elbowish connector on it. i need to know which one of these goes to the vacuum canister that has the big flapper attatched to it, and where the other one goes. there are also two little black ones that look like they are broken or disconnected, but i don't think they are for the heater (maybe another problem) if anybody had a diagram that would be GREAT.