Adding Oil To A New Split Sys

[mrhvacmechanic]

When piping in a new split system, are ther any charts for adding oil to the system???
I know we can estimate the gas charge, but what about the oil when compressors don't have an oil glass?

[crab master]

Your installation manual may have some information, if not check the manufacturer's website for documentation on long line set installations. From last year's memory I believe Goodman's install sheet that came with the unit didn't have anything on long line set adds other than a reference to their white paper and charging information. To get their white paper I had to go online.

[maxster]

in all the OEM start-ups done over the yearseither it being 5 story risers(with a AC&R riser oil seperator) into air cooled condensers or 100' out of a rooftop penthouse chiller to the same types maybe a gallon here and or their.let the unit run for a week or two it only wets the pipes and TXV.if you have a charging port or valve for oil....take a line off it and then up to the suction and with brass inline sightglass you can catch the level in the compressor(i don't have to say it do i in the OFF position and the CCW hot):eek: