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8-2. Using the external input/output function
Prepare an external input/output adaptor to use the external input/output function.
This function cannot be used when the "local remote controller operation prohibit" is set to prohibit.
Note that the external emergency stop input can be used.
(1) External input functions
Emergency stop/Normal, ON/OFF and local remote control prohibit/enable control can be applied to all units
being controlled by inputting the no-voltage contact signal from an external source.
Set the switches as shown below.
Switch setting
Setting details
SW3-2 SW3-3
Do not use external input OFF OFF
Carry out Emergency stop/Normal with level signal OFF ON
Carry out ON/OFF with level signal ON OFF
Carry out ON/OFF and prohibit/permit with pulse signal ON ON
(2) External output function
The "ON" signal is output when more than one air conditioner is running, and the "Error Occurrence" signal is
output when an error is occurring in more than one air conditioner.
* Please refer to the Installation Manual for details.
8-3. Disabling the local remote controller's operations from
this controller
Resetting of the filter sign with the manual remote control can be disabled.
Setting details Switch setting
Disable SW3-4: OFF
Enable SW3-4: ON
8-4. When local remote controller and system controller are
prohibited
Setting details Switch setting
Only local remote controller SW3-5: OFF
Local remote controller and system controller SW3-5: ON
* This setting is valid only when SW3-4 is ON.
8-5. Changing set temperature display to "Fahrenheit
display"
Setting details Switch setting
Celsius display: ºC SW3-6: OFF
Fahrenheit display: ºF SW3-6: ON
NOTE When the DIP switch 3 setting has been changed between ON and OFF, always turn the power OFF
once.
The function will not change just by changing the switch setting.
The function will change after turning the power OFF and ON.