135
Check code
[L10] / [88]
(TCC-L / AI-NET)
Check code name
Outdoor capacity unset
Cause of operation
The model selection jumper of the outdoor I/F
P.C. board does not match the model.
Service I/F P.C. board for the outdoor unit is common to all outdoor units.
The service I/F P.C. board will need to be set up for the correct model based upon the faulty I/F P.C. board, which it is
replacing. Set up the model based upon the I/F P.C. board assembly change procedure.
∗
Using 7-segment on I/F P.C. board, check the model name on each outdoor unit.
For check, when putting the rotary switch on SW01/02/03=16/16/16, it is an
outdoor I/F P.C. board, for Super Module Multi Flex if “F” is displayed at the left
side of 7-segment [A] part.
Is the check code [L17]
displayed even if turning power on
again of all the connected outdoor
units on 1 system alone?
Are all the connected
outdoor I/F P.C. board's on 1 system
P.C. board's of outdoor units for
Super Module Multi Flex?
Check again whether there is any
other outdoor unit or not on the
communication line in 1 system.
If any, turn off power of the
corresponding outdoor unit and
then check once more.
Replace outdoor units of other models
with specified models
Correct communication line between
outdoor units.
Change the incorrectly built-in outdoor
I/F P.C. board's with I/F P.C. board's for
Super Module Multi Flex.
Are the connected outdoor
units those for flex on 1 system?
(Check model name.)
YES
YES
YES
NO
NO
NO
Check code
[L17] / [46]
(TCC-L / AI-NET)
Check code name
Inconsistent models of
outdoor units
Cause of operation
There are outdoor units on the communication
line other than Super Module Multi Flex type
such as Super Module Multi or Super Module
Multi ice regenerative type
Are two or more
central control system with identical
network addresses connected?
Check the network adaptor
on the indoor P.C. board.
Correct the network address
of the central control system.
YES
NO
Check code
[L20] / [98]
(TCC-L / AI-NET)
Check code name
Duplicated central
control addresses
Cause of operation
Central control addresses are duplicated.
YES
YES
YES
YES
NO
NO
NO
NO
Replace P.C. board according to auxiliary code.
( )
( )
( )
( )
Correct connection of communication line.
Correct connection of communication line.
Correct connection of power supply line.
Correct connection of power supply line.
Are communication connectors between
I/F P.C. board and comp IPDU connected?
I/F P.C. board : CN600
Comp IPDU : CN06
Are communication connectors
between comp IPDU and fan IPDU connected?
Comp IPDU : CN22
Fan IPDU : CN804
Has the power supply connectors
connected comp IPDU and fan IPDU?
Comp IPDU : CN13
Fan IPDU : CN01
Check the voltage, AC 220–240V
Has the power supply connectors
connected fan IPDU and noise filter P.C. board?
Fan IPDU : CN02
Noise filter P.C. board : CN08
Check the voltage, AC 220–240V
Check code
[L29] / [CF]
(TCC-L / AI-NET)
Check code name
IPDU quantity error
Cause of operation
1. Incorrect model setup in service for I/F P.C. board
2. Communication error between IPDU, fan IPDU and I/F
3. IPDU, fan IPDU, I/F P.C. board error
Auxiliary code :
01: Comp IPDU error
02: Fan 1 IPDU error
03: Comp + Fan 1 IPDU error
04: Fan 2 IPDU error
05: Comp + Fan 2 IPDU error
06: Fan 1 + Fan 2 IPDU error
07: All IPDU error or disconnection of communication line between IPDU-I/F P.C. board or outdoor I/F P.C. board error