Line-set length of minisplit
joenorm
| Posted in General Questions on
I am wondering if the length of the line-set has any bearing on performance of a mini split?
Single-head Mitsubishi Hyper-heat 18K
The max length I would run the line is about 25ft, not a lot I know. But I could make it even shorter if it was better for the unit?
Thanks
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Replies
25' is the standard lineset length, it will have no effect on the rated performance. 40' causes a 2.3% reduction in heating on a FH18NA. What really matters is measuring the refrigerant charge for your INSTALLED length, not a guesstimate.
I'm pushing 35-40 feet where I have it planned. I could shift it to reduce this to around 25feet.
Is it worth moving for any gained efficiency?
I guess that depends on if you think 2.3% is worth it. :) I would place it where it works best aesthetically & mechanically (sheltered from snow, minimum clearances, noise, drained condensate, etc.) and not worry about the small efficiency hit.