Using The External Input/Output Function; Disabling The Local Remote Control's Operations From This Controller; When Local Remote Controller And System Controller Are Prohibited; Changing Set Temperature Display To "Fahrenheit Display - Mitsubishi Electric PAC-YT34STA Instruction Book

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.
Carry out Emergency stop/Normal with level signal
Carry out ON/OFF and prohibit/permit with pulse signal
(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.
8-4. When local remote controller and system controller are
prohibited
Only local remote controller
Local remote controller and system controller
* This setting is valid only when SW3-4 is ON.
8-5. Changing set temperature display to "Fahrenheit
display"
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.
Setting details
Do not use external input
Carry out ON/OFF with level signal
Setting details
Disable
Enable
Setting details
Setting details
Celsius display: ºC
Fahrenheit display: ºF
Switch setting
SW3-2 SW3-3
OFF
OFF
ON
ON
Switch setting
SW3-4: OFF
SW3-4: ON
Switch setting
SW3-5: OFF
SW3-5: ON
Switch setting
SW3-6: OFF
SW3-6: ON
OFF
ON
OFF
ON
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