System Wiring
L1
L2/N
1
2
3
(∗1)
Use the
Power supply
AC100 - 240V
supplied
50/60Hz
terminal
(large).
(∗1) Please connect to ground for signal wire and power supply wire.
(∗2) The selected relay obtained at the site should have the following specifications: rated voltage
of DC 12V and maximum power consumption of DC 0.9W or less (80mA or less)
(∗3) The selected relay obtained at the site should have the following specifications: Non-voltage "a"
contact input and capable of withstanding a minimum applied load of DC 12V and 10mA or less.
The DO and DI terminals are polar.
Do not connect three or more wires to the same terminal.
5
Control Switch Selection
It is possible to change the setting as follows by settings of the PCB switches SW1 to SW10, J1, J2, and J3 on the central control.
Please change the control on site as necessary. It is recommended to change the setting by using a precise driver.
(1) Switch
No.
Default
ON
1
ON
See table at right
2
ON
3
Setting possible
OFF
4
ON
Display
5
ON
New
6
ON
Center & Blower
7
OFF
Setting possible
8
Time Day.Month
OFF
9
OFF
Return to the original status The units have stopped
10
OFF
(2) Jumper wires
Short circuit (default)
J1
Setting possible
(Including during external input.)
J2
J3
(∗1) Switching is needed if the connection is previous Super Link.
Actual type of network connection (New or previous Super Link) depends on the models of indoor units and outdoor units, etc. Please contact the agency or the
Sales representative.
(∗2) When J1 is disconnected, the Center/Remote does not be set from this central control. Please disconnect if multiple central controls are installed and another
main central control exists.
When J1 is disconnected, data is sent for the blower only during demand input (nothing is performed when SW6 is off) and for stop only during emergency stop input.
6
Setting the Control Target Units
Make the settings for the units to be controlled by the central control.
For the setting procedure, see the user's manual attached to the central control.
At shipping, none of the units are set as target units for control, and so the units to be controlled by this central control
must be set as control target units.
Three types of settings are available.
1 Units are selected as control targets for central control and controlled
as a group
2 Units are selected as control targets for central control but not grouped
3 Units are not selected as control targets for central control
(or units will be controlled by another central control)
Be sure to set the current time. This is needed for the program settings and error history display.
Turn on the power and press the three buttons (MENU, RESET, GROUP No. 10) at once more than five seconds, that can
initialize the setting contents.
Group control when using multiple units
This central control can control up to 64 target units
(up to 48 units when using the previous Super Link
setting). Multiple central controls must be installed to
control 65 or more air conditioner units.
When connecting multiple central controls on a single
network, any group settings can be made for each
central control.
COM
DO1
4
5
(∗2)
Operation output
(01)
OFF
See table at right
Power failure compensation function
Setting not possible
Automatic mode display
No display
Filter sign display on/off
Previous
New/Prev. Super Link(∗1)
Center
Sending of data during demand input
Setting not possible
4th fan speed set
Month.Day Time
Error history display
Operation after emergency stop cancel
(Keep at Off)
When disconnected
Setting not possible
(Including the allowed/prohibited settings of each
DO2
COM
6
7
(∗3)
Error output
Demand input
(02)
NOTE
Do not connect the power supply wire to another terminal.
Making the wrong connection can result in damage or burning of
electrical parts and is extremely dangerous.
Please check the wires again before turning on the power supply.
Power failure compensation function selector
Description
SW-1
ON
ON
OFF
OFF
Function
Center/Remote setting (∗2)
remote control function)
(Do not disconnect.)
(Do not disconnect.)
a
SC-SL2NA-E
1
2
3
4
a-Gr1
a-Gr2
DI1
DI2
DI3
8
9
10
(∗3)
(∗3)
(∗3)
Emergency stop input
External timer input
(I1)
(I2)
(I3)
SW-2
Function
Sending of program settings when power
ON
comes back on (The operation status before
the power failure is sent if there is no program
when power comes back on.)
OFF
Sending of operation status before power failure
ON
(Do not make this setting.)
OFF
No data is sent when power comes back on
J1
J2
J3
Group setting
Individual setting
Not target units for control
b
SC-SL2NA-E
SC-SL2NA-E
5
6
7
8
9
10
c-Gr1
b-Gr1
A
B
11
12
Super Link signal wire
Use the supplied
terminal (small).
SW1 to 10
(Left-OFF, Right-ON)
1
2
3
4
5
6
7
8
9
10
c
45
46
47
48
a-Gr16
c-Gr16