March 1, 2017 Jeff Rosenblum
Recently I have been receiving a lot of questions regarding the wire sizes that connect to the indoor units and line set sizes on Mitsubishi equipment. Here is a brief explanation:
The last thing to bring up is the line set sizing. Line set sizes must follow what the indoor unit requires. For example:
If the indoor unit requires 1/4″ – 3/8″ then the line set must be 1/4″ – 3/8″ regardless of the port of the outdoor unit or branch box. If a change in size is needed to connect to the outdoor unit or branch box, we sell adapters to be used at the outdoor unit or branch box.
If you have any questions please feel free to contact the HVAC Technical Support Team.
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