I have a single stage 10 ton AC CU with two five ton AHU about 4 feet below CU. Compressor failed ( will not pump)
Copeland replacement compressors have an oil sight glass and a shrader valve to drain oil on them.
Do I need to blow oil out of evaps or can I rely on new compressor to return surplus oil to compressor. Then I can adjust correct oil level with compressor sight glass?