Daikin VRV RXYQ72-384XAYCA Service Manual page 106

Protection Control
Radiation Fin
Perform the following control of integrated as well as multi units for each compressor.
Temperature
Control
99
Normal control
A
Reduce compressor capacity
Fin temperature standby
Condition All outdoor units
A more than 90°C (194°F)
B less than 87°C (188.6°F)
C more than 95°C (203°F)
B
C
When occurring 4 times within 60
minutes, the error code L4 is output.
SiUS342004EB
Part 4 Functions and Control