Daikin VRV S RXQ4/5ARV1 Service Manual page 71

SiAF332111E
1.4.4 Inverter Protection Control
Inverter current protection control and inverter fin temperature control are performed to prevent
tripping due to abnormality, transient inverter overcurrent, and fin temperature increase.
Inverter overcurrent protection control
Part 4 Functions and Control
Model A (A)
4HP 13.7
5HP 23.0
10/12HP 22.0
Inverter current > A (A)
Limited
frequency: 1-step down from
current compressor frequency
• 10 seconds
&
• Matching of frequency
Current step maintained
Inverter current ≤ A (A)
continues for 3 minutes
frequency: 1-step up from
current compressor frequency
B (A)
14.8
24.1
22.0
Not limited
Inverter current ≤ A (A)
•
&
Compressor upper limit: Maximum frequency
•
Compressor upper limit
Inverter current > A (A)
Without conditions
Compressor upper limit
Inverter current ≥ B (A) × 10% continues for 260 seconds
Inverter current
standby
Control for 4/5/10/12 HP Outdoor Unit
When occurring 4 times
within 60 minutes,
the error code L8 is output.
65