Hitachi UTOPIA RAS-4HVRP2E - Prevention Control for Excessively High Discharge Gas Temperature

5 Control System
Standard control functions
SMGB0136 rev.0 - 07/2021
104
5.6.2 Prevention control for excessively high discharge gas temperature
Heating operation
IU
air outlet
temperature
≥ 65ºC
Yes
CMC: OFF
No
< 65ºC
Compressor:
OFF
3
min
progress
≥ 65ºC
IU
air
outlet temperature
< 65ºC
No
set
temp is
lower than air intake
temp
CMC: ON
Compressor:
ON
Yes
Thermo-ON/OFF control for indoor unit
IU: Indoor unit