Hitachi RAS-5HVRNM1E Service Manual page 160

5 Control System
Prevention control for excessively high discharge gas temperature
Heating operation
Lower than 65 ºC
Outlet air temp.
of I.U.
Higher than 65 ºC
CMC : OFF
Compressor stop
Is it continuous for
more than 3 min?
Yes
Higher than 60 ºC
Discharge air temp.
of indoor unit
Lower than 60 ºC
Is setting temp.
lower than inlet air temp.
of indoor unit?
Yes
CMC : ON
Compresor RUN
152
SMGB0060 rev. 1- 12/2010