Hello
having problems with a hussmann protocol low temp rack with air cooled condenser. turbashed has no oil in it the oil reservoir has no oil also.
Receiver level 40 percent this condenser is the new krack coils with microchannel panel system.
At first thought there might be a leak but the levels are good in receiver.
Receiver on roof with blanket and heater.
I dont want to add oil but compressors locking out temporarily and alarming but then auto resetting on traxx oil system.
checked pressure across turbashed had a 5 psi drop.

cant get oil to come back to rack raised setpoint for condenser for about 2 hrs but didnt get any oil back.
what procedure do you use to get the oil back to protocol? setpoint for condenser is 190 psi.