mitsubishi 3 zone ductless mini split upgrade

Old 07-19-17, 02:12 PM
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mitsubishi 3 zone ductless mini split upgrade

Hello everyone
I have 2 from 3 zone Mitsubushi mini split system installed in my house.
I would like to add 3rd internal unit. Does it means that i will need to replace 410r gas in the unit, or i can keep it somehow inside the unit during 3rd zone will be connected?
Thank you
Old 07-21-17, 05:19 AM
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If your original contractor was any good he would have put in shutoff valves on the other two lines. Hopefully he did.

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