Table 8.4 Troubleshooting (Continuous)
No.
Condition
Check Items
Action
3
The CCCA01 does
not connect with the
management computer.
Is the LAN cable connected to CCCA01?
Connect LAN cable to CCCA01.
&KHFNWKHFRQQHFWRU¿W
Is the LAN cable connected to the
management computer?
Connect LAN cable to the management
FRPSXWHU&KHFNWKHFRQQHFWRU¿W
,VWKH,3DGGUHVVRI&&&$VSHFL¿HGLQ
CCCS01 in the management computer?
7KHGHIDXOW,3DGGUHVVLV
Adapt the default address by following
&ODXVHZKHQWKHPRGL¿HGDGGUHVV
is lost.
Is the power of HUB ON?
Turn the HUB ON.
,V/$1ZLULQJXVLQJWKHVSHFL¿HGPHWKRG
(refer to Table 7.2) ?
Use the following cable.
- Category 5 or more
- Total length: 328.1 feet or less
Use the straight cable and connect to
the management computer via HUB.
Does the LAN wiring appear to be in
normal condition?
(This is to mean, is there any unusual
wear or damage?)
Replace with new Cable.
Is the management computer in normal
condition?
Replace with new computer.
Does the LAN cables run in close
proximately to the power cable?
0DLQWDLQDGLVWDQFHRIDWOHDVWLQFKHV
between the LAN cable and the power
source cables.
Is the LAN LED OFF?
If the management computer and LAN
wiring appear in the normal condition,
there could be a defect in CCCA01.
Contact your distributor or dealer.
Is there an incorrect DSW (DIP Switch)
setting?
,I'6:VHWWLQJZDVPRGL¿HGFKHFN
again by referring to Table 7.4.
4
Air conditioners cannot be
controlled by management
computer (CCCS01).
Does the ERROR LED and/or 7-Segment
LED show one of the following ?
Communication is not properly
established.
Check the wiring connection for air
conditioners and H-LINK.
Are all of air conditioners connected to
CCCA01 turned ON?
Turn ON all of air conditioners
connected to CCCA01.
Is the setting for terminal resistance on
H-LINK wiring adequate?
Use single terminal resistance on
H-LINK wiring.
Is the address setting of the air
conditioners consistent?
Modify address setting according to the
installation and operation manual of air
conditioner.
Is H-LINK wiring connected properly?
Check H-LINK wiring connection.
Is H-LINK wiring running along the power
line?
0DLQWDLQDGLVWDQFHRIDWOHDVWLQFKHV
between the H-LINK wiring and the
power cable from the main power
source.
,VWKHVSHFL¿HGFDEOHUHIHUWR7DEOH
in use?
Use the following cable:
5HFRPPHQGHG6L]H$:*a
- Total length: 3281 feet (Max)
Does the H-LINK LED remain OFF?
Check H-LINK wiring connection.
Does the H-LINK LED remain ON?
There could be a defect in the CCCA01.
Contact your distributor or dealer.
ERROR LED
7-Segment LED
2QHÀDVKLQJSHU
3 seconds
OE
Service Manual
1-727
INSTALLATION
Summary of Contents for YVAHP072B31S
Page 2: ......
Page 10: ...viii Service Manual ...
Page 16: ......
Page 17: ...Service Manual 1 1 INSTALLATION 1 Installation ...
Page 577: ...Service Manual 1 561 INSTALLATION 9 Touch Back to return to the Service Menu screen 9 ...
Page 920: ......
Page 921: ...Service Manual 2 1 OPERATION 2 Operation ...
Page 1315: ...Service Manual 3 1 TROUBLESHOOTING 3 Troubleshooting ...
Page 1461: ...Service Manual 4 1 MAINTENANCE 4 Maintenance ...
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Page 1729: ...Service Manual 6 1 FIELD WORK INSTRUCTIONS 6 Field Work Instructions ...
Page 1738: ...6 10 Service Manual FIELD WORK INSTRUCTIONS 6 8 Mollier Chart for R410A ft 3 l b ...
Page 1739: ...SERVICE PARTS LIST Service Manual 7 1 7 Service Parts List ...
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Page 1796: ... 2015 Johnson Controls Inc SM 15001 ...