96
10-26-3. Checking indoor unit addresses
Use the remote controller to check the addresses of the indoor units. Press and hold the
button and
button
for 4 seconds or longer (simple settings mode, “ALL” appears on the remote controller). Then press the
but-
ton and select the indoor address.
(For the system addresses of the No. 1 outdoor unit, each time the button is pressed, the address changes as fol-
lows: 1-1, 1-2, ... 1-1, ...)
The indoor unit fan operates only at the selected indoor unit. Confirm the indoor unit address. (For the system
addresses of the No. 2 outdoor unit, the displayed addresses are 2-1, 2-2, ...)
Press the
button again to return to the normal remote controller mode.
10-26-4. Indicating (marking) the indoor and outdoor unit combination number
Indicate (mark) the number after automatic address setting is completed.
(1) So that the combination of each indoor unit can be easily checked when multiple units are installed, ensure that
the indoor and outdoor unit numbers correspond to the system address number on the outdoor unit control
PCB, and use a magic marker or similar means which cannot be easily removed to indicate the numbers in an
easily visible location on the indoor units (near the indoor unit nameplates).
Example: (Outdoor) 1 – (Indoor) 1, 2...
(Outdoor) 2 - (Indoor) 1, 2...
(2) These numbers will be needed for maintenance. Be sure to indicate them.
10-26-5. Setting a wired remote controller as a sub remote controller
Change the remote controller address connected on the reverse side of the remote controller switch PCB from the
Main position to the Sub position.
Fig. 10-27
Fig. 10-28
TIMER
TMNL.
RCU
TMNL.
RCU.ADR
RCU.Main
RCU.Sub
RCU.CK
To Service Technicians
To display the sensor temperature:
WA R N I N G
To avoid an electric shock hazard,
DO NOT touch any ter-
minal on the Printed Cir-
cuit Board with a metal rod, a
screwdriver edge or bare hand
when power
is supplied.
Press both and buttons on the
remote controller for more than 4 seconds
together.
Change the sensor address (CODE NO.)
with / (SET TEMP) buttons.
Select the UNIT NO. that you want to call
with button.
Press the button to finish service mode.
To display the trouble history:
Press both and buttons on the
remote controller for more than 4 seconds
together.
Change the alarm message:
/ (SET TEMP) buttons
CODE NO.
Press the button to finish service
mode.
On the remote controller, press
+ + at the same time for
more than 4 seconds.
Set CODE No. with /
(SET TEMP) button.
Set DATA from to
with / (TIMER) button.
Press
Finally, Press
(New) (Old)
Changing method for room
temperature sensor (from Indoor
unit to RCU)
1
2
3
4
Remote Controller (Sub)
Remote controller
address connector
Remote Controller (Main)
Checking remote controller
04-393 DC INV Tech p 64-110 12/13/04 11:35 AM Page 96
