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22-07-2009, 02:43 AM #1
drose300 GuestGrunaire Mini Split Operating PSI
I installed a 18,000 btu ductless system. Manual said if lines are over 16 feet you should add *****, Lines are 25 feet. I hooked guage to high and low lines and the pressure was 115 on low and 125 on high. Does anyone know what pressure the unit should be.
Thanks
David
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