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  1. rbl671

    Lubrication loss in R-410 at OAT below 60° F -- Carrier claims

    Morning all - new here and looking for help. I can't get my head around this. Carrier Heating and Cooling specs their 25VNA8 Infinity Series 5 stage inverter heat pumps at cooling down to 40° OAT with their communicating system control and the ability to operate down to 25% of capacity in...

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