High Reliability - Fujitsu Airstage V-II Design & Technical Data

111131 HIGH RELIABILITY

OUTDOOR UNIT OPERATION ROTATION
„ „
The compressor starting order is rotated so that the running time is shared.
Rotation
DC AC DC
1 4 2
Note : The inverter compressors start in priority.
Operating rotation is alternated by the start / stop timing of the compressors
BACKUP OPERATION
„ „
If one of two compressors malfunctions, it will not affect the operation of the remaining outdoor
units.
Outdoor units
If one of compressor fails, backup operation will be performed by the remaining
compressors as emergency.*1
*1 Note: Backup operation may not be possible depending on the combination
and trouble state.
Indoor units
Indoor unit continuous operation
Each indoor unit is controlled individually on the system network. This allows all
indoor units to continue to operate unaffected even if an error should occur at
any indoor unit's on the VRF system.
DC AC DC AC
1 4 2
AC DC
5 3
Rotation
Failure
DC
5 3
Rotation
DC AC DC AC
1 4 2 5
- (01 - 05) -
DC
3