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5 Optional functions
Indoor units input and output signals
SMGB0137 rev.0 - 05/2021
97
5
Optional output signals
?
N O T E
If an input signal is set, the on-screen display on the remote controller automatically changes to the following.
Indication
Output signal
Application
Port
00
Not set
Not set
•
CN7 or CN8
•
Only CN7 for RPK units
01
Operation signal
This signal permanently controls the status of the unit.
?
N O T E
It is extremely useful for centralised applications.
•
CN7 or CN8
•
Only CN7 for RPK units
02
Alarm signal
This signal enables devices that protect and indicate any
faults in the unit.
?
N O T E
It is extremely useful for rooms in which air conditioning must
remain on at all times.
•
CN7 or CN8
•
Only CN7 for RPK units
03
Cooling signal
This signal controls the status of the compressor.
?
N O T E
It is extremely useful for controlling the thermostat switched
off on indoor units.
•
CN7 or CN8
•
Only CN7 for RPK units
04
Thermo-ON signal
during cooling
It is extremely useful for controlling requests by the indoor
unit to enable the compressor.
•
CN7 or CN8
•
Only CN7 for RPK units
05
Heating signal
This signal controls the status of the compressor. It is
extremely useful for controlling the thermostat switched off
on indoor units.
•
CN7 or CN8
•
Only CN7 for RPK units
06
Thermo-ON signal
during heating
It is extremely useful for controlling requests by the indoor
unit to enable the compressor.
•
CN7 or CN8
•
Only CN7 for RPK units
07
Total Heat Exchanger
•
CN7 or CN8
•
Only CN7 for RPK units
08
Not used
•
CN7 or CN8
•
Only CN7 for RPK units