– 63 –
b) Group operation (including twin triple and double twin system)
Turn on the indoor unit(s) with its P.C. board replaced to the P.C. board for indoor unit servicing,
according to either methods 1 or 2 shown below.
1. Turn on only the indoor unit with its P.C. board replaced. (Be sure to confirm the remote controller
is surely connected. If not, the operation [3] cannot be performed.)
Perform either methods 1 or 2 described in item a) above.
2. Turn on the multiple indoor units including the indoor unit with its P.C. board replaced.
• Twin or triple or double twin 1 system only
• All group connections
After completion of the auto-address setting mode (required time: approx. 5 min.), proceed to
[3]
.
∗
The header unit of the group may be changed by performing the auto-address setting.
Also, the system address/Indoor unit address of the indoor unit with its P.C. board replaced may be
assigned to the addresses (not used) other than those of the indoor units without its P.C. board
replaced.
It is recommended to keep the information in advance, which cooling system the indoor unit
belongs to or whether the indoor unit works as the header unit or the follower unit in the group
control operation.
[3] Writing the setting data to EEPROM
The settings stored in the EEPROM of the P.C. board for indoor unit servicing are the factory-set values.
Step 1
Push , and buttons on the remote controller simultaneously for more than 4 seconds.
∗
In the group control operation, the unit No. displayed for the first time is the header unit No..
At this time, the CODE No. (DN) shows “
10
”. Also, the fan of the indoor unit selected starts its
operation and the swing operation starts if it has the louvers.
(The unit No. “
ALL
” is displayed if the auto-address setting mode is interrupted in [2] step 2 a))
Step 2
Every time when
UNIT LOUVER
(left side button) button is pushed, the indoor unit No. in the group control
operation are displayed in order.
(The settings stored in the EEPROM of the P.C. board for indoor unit servicing are the factory-set
values.)
Specify the indoor unit No. with its P.C. board replaced to the P.C. board for indoor unit servicing.
(You cannot perform this operation if “
ALL
” is displayed.)
Step 3
Select the CODE No. (DN) can be selected by pushing the
/
button for the temperature setting.
3 6 5 1
4 2
<Fi
g
. 1 RBC-AMT32E>
• Set the indoor unit type and capacity.
The factory-set values shall be written to the EEPROM by
changing the type and capacity.
1. Set the CODE No. (DN) to “
10
”. (without change)
2. Select the type by pushing
/
buttons for the timer setting.
(For example, 4-way Cassette Type is set to “0001”. Refer to
table 2)
3. Push button.
(The operation completes if the setting data is displayed.)
4. Change the CODE No. (DN) to “
11
” by pushing
/
buttons for the temperature setting.
5. Select the capacity by pushing
/
buttons for the timer
setting.
(For example, 80 Type is set to “
0012
”. Refer to table 3)
6. Push button.
(The setting completes if the setting data are displayed.)
Setting Ceiling indoor unit model only
7. Using the set temperature
/
buttons, set “
CE
” to the CODE No. (DN).
8. Using the timer time / buttons, set the dat. (0001)
9. Push button (The setting completes if the setting data are displayed.)
10. Push the button to return to the normal stop status
(It takes approx. 1 min until the remote control operation is available again.)
