Service Information - Panasonic CS-A24BB4P Service Manual

violation of law.

1. SERVICE INFORMATION

The new Cassette / new Outdoor models are possible to have address setting for twin / triple
control or group control automatically when main power supply is switched on.
(Manual address setting is also possible by using DSW1 switch on the indoor unit P.C. board.)
However, this address setting is only possible when proper wiring connection is made and
indoor unit must be of original unit.
1.1. Example of trouble during test operation
If the below phenomenon is found during test operation, wrong address setting is possible. /
Therefore, please inspect the address setting.
1. LCD display of the wired remote control is not illuminated
although the main power supply switch is 'on'.
2. LCD display had indicated as normal illumination when power
supply switch is 'on', however outdoor unit cannot be operated. /
(But, it is necessary to take 3 to 5 minutes for outdoor unit to start
from the timing of remote control OFF/ON button is 'on'.) / (For
normal operation, the outdoor unit will only start its operation
after 3 to 5 minutes upon pressing the OFF/ON button.)
3. P.C. board had memorized wrong setting information.
A. If main power supply is switched on with the wrong connection.
B. When changing the connection or combination of units due to
re-installation etc.
- When changing the system from twin to triple (triple to twin).
- When changing the system from group control to normal one
to one system.
Notice of Address setting for NEW Cassette / NEW Outdoor Unit.
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