Heater unit

[frank1966]

Hello,

What do the 2 tubes at the bottom of the heat unit do? Iam reinstalling mine and having a hard time getting one of these tubes to fit through the firewall

[70 sublime]

Condensation water drip out so it does not leak inside the car interior

[frank1966]

Thanks, i am having a very hard time getting it in on drivers side. I got in everything in on the passenger side

[GreenMachine]

The one on the left connects to the fan motor with a 90° hose. I think it's to keep the motor cool. The one on the right is a condensation drain for the evaporator.

[70 sublime]

The one on the left connects to the fan motor with a 90° hose. I think it's to keep the motor cool. The one on the right is a condensation drain for the evaporator.

There are 3 pipes coming out of the back


Yes the one beside the big hole goes to the electric fan motor with a rubber elbow and the lower over 2 are drains

[frank1966]

Thanks, related question, does it matter which port I use on vacuum canister ? Is there an orientation? Ports on can are the same size