Daikin GYEQ20AN, Руководство по обслуживанию

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SiAUY361411EA Flow Charts for Troubleshooting
Troubleshooting 164
39
Too Many Indoor Units Connected
Error
code
P0
Description
of the failure Sub-code 0: The number of connected indoor units is beyond the upper limit specific to the outdoor unit
model.
Possible
causes
of the failure
Upper limit of connected indoor units exceeded; CPU mismatch; communication line connection failure;
communication line incorrectly installed
Flow chart
Is No. Of Connected
Indoor Units Correct?
YES
NO
YES
NO
Check No. of
Connected Units.
Is Model Of Main CPU Correct?
Check Model
(Using Onboard Checker.)
025907-00EN01
Check Communication wiring.
40
Total Indoor Unit Capacity Too Large
Error
code
P3
Description
of the failure Sub-code 0: The total capacity of connected indoor units is beyond the upper limit specific to the outdoor unit
model.
Possible
causes
of the failure
Upper limit of total indoor unit capacity exceeded; DIP switches misconfigured (for outdoor/indoor units);
outdoor unit memory switches misconfigured; CPU mismatch
Flow chart
Is Total Capacity Of Connected
Indoor Units Correct?
YES
NO
YES
NO
Check Total Capacity Of
Connected Indoor Units.
Are Communication Cables
Non-Defective?
NO
Check Communication
Cables.
Is Model Of Main CPU Correct?
Check Model
(Using Onboard Checker.)
YES
Change Indoor Unit P Board.
Are Switches Configured
Properly If Facility-Use/Outdoor Air
Processing Indoor Unit Is
Connected?
YES
NO
Turn ON Support For
Facility-Use/Outdoor
Air Processing Indoor Unit.
025908-00E