Arrived on scene to finalize a customer installed mini split system. I performed a nitrogen leak test at 450 psi. No leaks were detected. I evacuated the system, performed a nitrogen purge at 500 microns, and vacuumed the system down to below 100 microns. I performed a rise test and confirmed a stable vacuum. I released the refrigerant charge and placed the system into operation. I confirmed proper operation of the system.
