Copelands are tough compressors.
My service manager ran one open to the atmosphere for like 3 days straight.
Was still running when we came in monday.
My boss told me a trick about PM on renters.
Tell them once a month you have to come by and do PM's.
Make that day the same day you collect your rent.
"Better tell the sandman to stay away, because we're gonna be workin on this one all night."
"Dude, you need more than 2 wires to a condenser to run a 2 stage heatpump."
"Just get it done son."