Originally Posted by
Jerry Peck
The two underlined ones are not allowed by code, and, while the AHJ has the right to "interpret" the code, they do not have the right to "change" the code.
Look at the manufacturer's installation instructions - if those show three going into one, seal around all three to keep the air outside, otherwise, do it like is shown in the installation instructions (I've never seen where three into one have been shown in the installation instructions).