English
16
11-6
SETTING NUMBER OF THE CONNECTED INDOOR
UNITS AS SIMULTANEOUS OPERATION SYSTEM
• When using in simultaneous operation system mode,
change the SECOND CODE No. as shown in Table 6.
• When using in simultaneous operation system mode, refer to
“SIMULTANEOUS OPERATION SYSTEM INDIVIDUAL
SETTING” section to set master and slave units separately.
Table 6
11-7
SIMULTANEOUS OPERATION SYSTEM INDIVIDUAL
SETTING
It is easier if the optional remote controller is used when setting
the slave unit.
< Procedure >
• Perform the following procedure when setting the master and
slave unit separately.
• “
” in the tables indicates factory settings.
(Note) The “Mode No.” is set on a group basis. To individu-
ally set a Mode No. for each indoor unit or confirm the
settings, set the Mode No. in the parenthesis.
(1) Change the SECOND CODE No. to “02”, individual setting,
so that the slave unit can be individually set.
Table 7
(2) Perform field setting (Refer to 11-1 to 11-5) for the master
unit.
(3) Turn off the main power supply switch after (2) is finished.
(4) Detach remote controller from the master unit and connect
it to the slave unit.
(5) Turn on the main power supply switch again, and as in (1),
change the SECOND CODE No. to “02”, individual setting.
(6) Perform field setting (Refer to 11-1 to 11-4) for the slave
unit.
(7) Turn off the main power supply switch after (6) is finished.
(8) If there is more than one slave unit, repeat steps (4) to (7).
(9) Detach the remote controller from the slave unit after the
setting, and reattach to the master unit. This is the end of
the setting procedure.
* You do not need to rewire the remote controller from the
master unit if the optional remote controller for slave unit
is used. (However, remove the wiring attached to the
remote controller terminal block of the master unit.) After
the slave unit setting, remove the remote controller wir-
ing, and rewire the remote controller to the master unit.
(The indoor unit does not operate properly when two or
more remote controllers are attached to the unit in the
simultaneous operation system mode.)
NOTE
NOTE
NOTE
NOTE
• Terminal numbers of outdoor and indoor units must be
matched.
12.
TO PERFORM A TEST RUN
CAUTION
This task is only applicable when using the BRC1E52 or
BRC1E53 user interface. When using any other user inter-
face, see the installation manual or service manual of the
user interface.
NOTE
NOTE
NOTE
NOTE
•
Backlight.
To perform an ON/OFF action on the user inter-
face, the backlight does not need to be lit. For any other
action, it needs to be lit first. The backlight is lit for ±30 sec-
onds when you press a button.
1. Perform introductory steps.
Table 8
Setting
Mode No.
FIRST
CODE No.
SECOND
CODE No.
Pair system (1 unit)
11 (21)
0
01
Simultaneous
operation
system (2-unit)
02
Simultaneous
operation
system (3-unit)
03
Double twin multi
(4-unit)
04
Setting
Mode No.
FIRST
CODE No.
SECOND
CODE No.
Unified setting
11 (21)
1
01
Individual setting
02
#
Action
1
Open the liquid stop valve (A) and gas stop valve (B) by remov-
ing the stem cap and turning counterclockwise with a hex
wrench until it stops.
2 Close the service cover to prevent electric shocks.
3
Turn On power for at least 6 hours before starting operation to
protect the compressor.
4 On the user interface, set the unit to cooling operation mode.
P1 P2
P1 P2
1 2 3
P1 P2
1 2 3
P1 P2
P1 P2
P1 P2
1 2 3
1 2 3
1 2 3
1 2 3
Outdoor
unit
Outdoor
unit
NOTE)
NOTE)
Indoor unit
(Master)
Indoor unit
(Master)
Indoor unit
(Slave)
Indoor unit
(Slave)
Remote controller
Remote controller
( 3 ) ( 7 )
( 1 )
( 2 )
( 4 )
( 9 )
( 5 )
( 6 )
Earth
leakage
breaker
Earth
leakage
breaker
Fig. 39
Power supply
220 - 240V
~
50Hz
Power supply
220 - 240V
~
50Hz
A
B
4PEN469440-1H.book Page 16 Friday, March 22, 2019 2:36 PM
