1. SERVICE INFORMATION
Notice of Address setting for NEW Cassette / NEW Outdoor Unit.
The new Ceiling / New Outdoor models are possible to have address setting for twin / triple
control or group control by automatic when main power supply is switched on.
(Manual address setting is also possible by using Dip switch on Indoor unit P.C. board.)
However, this address setting is only possible when made proper wiring connection and also
Indoor unit should be original virgin unit.
1.1. Example of trouble at test operation
If found out as following phenomenon at test operation on site, it may have possibility of wrong
address setting. / Therefore, please ensure of the address setting.
1. LCD display of wired remote control had not illuminate 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 ON/OFF switch is ‘on’.)
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.
- When making the replacement of units as master and slave
etc.
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