Arrived onsite for ac maintenance on 1 units. Turn AC on to confirm operation. Changed polarized filter. Turned off humidifier. Checked all electrical. Chemically Cleaned outside unit, measured pressures for 410a at 108/107psi with 10 degree sub cooling with outside temperature at 74 degrees. Measured temperature drop at 20 degrees. Cleaned evaporator coil and blew out condensate line. Performed efficiency test utilizing MeasureQuick. System running as it should.
