6  Optional functions
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SMGB0077 rev.0 - 01/2013
6.1.2  Optional signal conguration
The  following  tables describe  the  optional  signals  available on  indoor  units. Optional  signals  are  congured  using the 
remote control, except for RPK-(0.8-4.0)FSN3M units in which they are congured using the DIP switches.
Optional input signals (PC-ART example)
N O T E
If an input signal is set, the on-screen display on the remote control automatically changes to the following.
 
Indication Input signal Application Remote control screen (input signal) Port
00
Not set Not set
CN3
01
Control  by  eld-supplied 
room thermostat (cooling)
This  signal  controls  the 
unit  through  an  external 
thermostat. 
N O T E
It  can  reduce  summer 
cooling  problems  in 
certain applications
 
CN3
02
Control  by  eld-supplied 
room thermostat (heating)
This  signal  controls  the 
unit  through  an  external 
thermostat. 
N O T E
It can reduce problems 
caused  by  indoor  air 
stratication.
 
CN3
03
Function 1: remote on/off of 
the unit (by contact)
This  signal  controls  the 
starting  and  stopping  of 
the  system  from  a  remote 
location. 
N O T E
It is extremely practical 
in hotels and ofces
to  control  the  indoor 
units from the building 
management system.
 
CN3
04
Function  2:  unit  on  (by 
pulse)
This  signal  controls  the 
starting  of  the  system from 
a remote location. 
N O T E
It is extremely practical 
in hotels and ofces
to  control  the  indoor 
units from the building 
management system.
 
CN3