En-12
CAUTION
1
When select the “Remote controller setting”, if the detected
temperature value between the temperature sensor of the
indoor unit and the temperature sensor of the remote controller
varies signi
fi
cantly, it is likely to return to the control status of
temperature sensor of the indoor unit temporarily.
2
As the temperature sensor of remote controller detects the temperature near the
wall, when there is a certain difference between the room temperature and the wall
temperature, the sensor will not detect the room temperature correctly sometimes.
Especially when the outer side of the wall on which the sensor is positioned is
exposed to the open air, it is recommended to use the temperature sensor of
the indoor unit to detect the room temperature when the indoor and outdoor
temperature difference is signi
fi
cant.
3
The temperature sensor of the remote controller is not only used when there is a
problem in the detection of the temperature sensor of the indoor unit.
NOTE:
If the function to change the temperature sensor is used as shown in examples A (other
than example B), be sure to lock the detection location. If the function is locked, the lock
display
will
fl
ash when the THERMO SENSOR button is pressed.
8.3. Static pressure characteristic
CAUTION
If the applicable static pressure does not match the static pressure mode, the static
pressure mode maybe changed to another mode automatically.
RECOMMENDED RANGE OF EXTERNAL STATIC PRESSURE [Pa]
30 to 150
1. STATIC PRESSURE MODE
It is necessary to set up a static pressure mode for each usage of static pressure.
Determine the applicable range of static pressure in each mode and wind volume, refer-
ring to the Technical manual.
2. MODE SETTING
It is possible to change the setting of static pressure mode. Refer to "8.2. Function setting."
8.4. Special installation methods
CAUTION
When setting DIP switches, do not touch any other parts on the circuit board directly with
your bare hands.
Be sure to turn off the main power.
8.4.1. Group control system
A number of indoor units can be operated at the same time using a single remote controller.
(1) Wiring method (indoor unit to remote controller)
1 2 3
1 2 3
1 2 3
1 2 3
1 2 3
Indoor
unit
1
Bus wire
Remote
controller cable
Remote controller
When ground wire is necessary
Indoor
unit
2
Indoor
unit
3
Indoor
unit
4
(2)
DIP switch setting (Indoor unit)
Set the unit number of each indoor unit using the DIP switches on the indoor unit
circuit board. (See the following table and
fi
gure.)
The DIP switches are normally set to make the unit number 00.
Indoor unit
Unit number
DIP SWITCH No.
1
2
3
4
1
00
OFF
OFF
OFF
OFF
2
01
ON
OFF
OFF
OFF
3
02
OFF
ON
OFF
OFF
4
03
ON
ON
OFF
OFF
5
04
OFF
OFF
ON
OFF
6
05
ON
OFF
ON
OFF
7
06
OFF
ON
ON
OFF
8
07
ON
ON
ON
OFF
9
08
OFF
OFF
OFF
ON
0
09
ON
OFF
OFF
ON
A
10
OFF
ON
OFF
ON
B
11
ON
ON
OFF
ON
C
12
OFF
OFF
ON
ON
D
13
ON
OFF
ON
ON
E
14
OFF
ON
ON
ON
F
15
ON
ON
ON
ON
Example : unit number 03
ON
1
2
3
4
NOTE
Be sure to set the unit numbers sequentially.
Remote controller setting
(3)
Turn on all of the indoor units.
1.
Turn on the indoor unit with the unit number 00 last. (Within 1 minute)
Set the refrigerant circuit address. (Assign the same number to all of the indoor
2.
units connected to an outdoor unit.)
Indoor unit
Unit number
Function Number
Setting Value
1
00
02
00
〜
15
2
01
〜
〜
E
14
F
15
Set the “primary” and “secondary” settings. (Set the indoor unit that is connected to
3.
the outdoor unit using a transmission cable as the “primary”.)
Function Number
Setting Value
Primary
51
00
Secondary
01
After completing the function settings, turn off all of the indoor units, and then turn
4.
them back on.
If error code 21, 22, 24, or 27 is displayed, there may be an incorrect setting.
*
Perform the remote controller setting again.
NOTES:
• When different indoor unit models are connected using the group control system, some
functions may no longer be available.
• If the group control system contains multiple units that are operated simultaneously, con-
nect and set the units as shown below.
• Auto-changeover operates under the same mode with model unit number 00.
• It should not be connected to any other Gr that is not of the same series (A**G only).
9379127035-02_IM.indb Sec1:12
9379127035-02_IM.indb Sec1:12
23/01/2013 16:25:45
23/01/2013 16:25:45
