Mitsubishi Electric PURY-P72TYJMU-A Service Handbook page 160

[ VII Control ]
-10- Control at Initial Start-up
ŒWhen started up for the first time before 12 hours have elapsed after power on, the unit goes into the initial startup mode.
ŒAt the completion of the initial operation mode on the OC and OS, they will go into the normal control mode.
1. Flowchart of initial operation
(1) P72, P96, P120, P144 models
HWE0913A
Initial startup mode starts.
50 F 60Hz
Completed in the integrated operation time of 35 minutes.
or F < 50Hz
Completed in the integrated operation time of 90 minutes.
or the discharge superheat (TH4 - Tc) is detected (within
5 minutes of startup) that remains above approximately
20 degrees for one minute .
Initial startup mode complete
- 151 - GB