– 7 –
8
Example for system configuration
1. To control a K control model
* Set G-50A address to “000” When a K transmission converter is con-
nected. Always set to the master system controller when the address is
“000”.
* When using a group setting for the K control model, set only the indoor
unit that belongs to that group.
* Set the min.indoor unit address in the group for the K control model group
No.
* Set the master system controller function select No.4 to “OFF” (operation
prohibit transmission valid) when the K transmission controller is con-
nected.
7
Test run
* After setting the group or interlocked setting, confirm that the controller has started up, and then perform a test run.
* It may take approx. 10 minutes for local remote controller operation to be enabled after the power is turned ON. In this case, press the
ON/OFF button on the controller to enable immediate local remote controller operation.
(Test run procedure)
1. Turn ON the Power to the controller and all the units.
2. When the “INITIAL SETTING (PLEASE WAIT)” blink on the controller LCD stops, press the “
1
ON/OFF switch” and the “tempera-
ture setting switcth
▲
” at the same time.
3. Confirm the run state (indoor unit outlet air temperature, cool air, confirmation, etc.) during the test run.
4. When each unit has been confirmed, stop the unit with the controller or local remote controller. Even if the units are not stopped, the
test run will stop automatically after approx. 2 hours.
* Refer to the installation manual for the connected indoor unit for details on the test run method.
20 indoor units (for control)
Group 21 to Group 38
K transmission converter
(Model:PAC-SC25KAA)
9
External input/output usage method
1. External signal input function
* External signal input requires the external I/O adapter (Model: PAC-YG10HA-E) sold separately.
(1) External input
Emergency stop/normal, run/stop and prohibit/enable of local remote controller operation can be controlled for all air conditioners being
controlled by using a voltage (DC12V or DC24V) contact signal from an external source. (Select with the function select setting)
(2) Level signal and pulse signal (DC12V or DC24V)
No.
1
2
3
4
External signal input function
Do not use external input signal
(factory setting)
Execute emergency stop/normal with
level signal
Perform ON/OFF with level signal
Perform ON/OFF, prohibit/enable with
pulse signals.
Function
No.6
No.7
OFF
OFF
ON
ON
OFF
ON
OFF
ON
Remarks
The local remote controller ON/OFF operations, and the
controller ON/OFF operation and prohibit/enable change
operations will be prohibited during emergency stop.
The local remote controller ON/OFF operations, and the
controller ON/OFF operations and prohibit/enable change
operations will be prohibited.
Set the pulse width while the contact is ON to 0.5 to 1 sec.
(A) Level signal
Contact ON
Contact OFF
Contact ON
Contact OFF
Stop
Run
Stop
Normal
Normal
Emergency stop
(B) Pulse signal
Contact ON
Contact OFF
(Example) for ON/OFF
0.5 to 1 sec
0.5 to 1 sec
Contact ON
Contact OFF
Signal 1(run)
Signal 2(stop)
OFF
ON
OFF
*The prohibit/enable input is the same.
20 indoor units
Group 1 to Group 10
Power supply unit
(Model PAC-SC50KUA)
DC12V
M-NET
G-50A
(Master system controller)
Summary of Contents for G-50A
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