6  Optional functions
218
SMGB0077 rev.0 - 01/2013
Cooling operation signal
On-screen display: 03.
This optional signal is used to pick up the cooling operation signal.
Connect the wiring and use the materials as indicated in Available ports.
N O T E
The X2 auxiliary relay contact closes when the  cooling  operation  signal  is  enabled,  regardless  of  whether  the 
thermostat signal is enabled or disabled.
Thermostat enabled signal during the cooling process
On-screen display: 04.
This  optional  signal  is  used  to  pick  up the  thermostat  enabled  signal  for the  compressor  operating  during  the cooling 
process.
Connect the wiring and use the materials as indicated in Available ports.
N O T E
The X1 auxiliary relay contact closes when the thermostat signal is enabled during cooling mode.
 
Heating operation signal
On-screen display: 05.
This optional signal is used to pick up the heating operation signal. The X2 auxiliary relay contact closes when the heating 
operation signal is enabled, regardless of whether the thermostat signal is enabled or disabled.
Connect the wiring and use the materials as indicated in Available ports.
N O T E
The X2 auxiliary relay contact closes when the  cooling  operation  signal  is  enabled,  regardless  of  whether  the 
thermostat signal is enabled or disabled.
 
Thermostat enabled signal during the heating process
On-screen display: 06.
This  optional  signal  is used  to  pick up  the thermostat  enabled  signal for  the  compressor  operating during  the  heating 
process and to control a circulation pump or humidier.
Connect the wiring and use the materials as indicated in Available ports.
N O T E
The X2 auxiliary relay contact closes when the thermostat signal is enabled during heating mode.