10 Electrical wiring
System Control - Main concept
TCGB0136 rev.1 - 05/2021
114
10.6.2 UTOPIA IVX Prime
The UTOPIA IVX Prime system remains in Thermo-ON as long as there is a load demand for one indoor unit. If the
system is in Thermo-OFF, it will switch to Thermo-ON as soon as the first unit has load demand.
Individual Operation (only available with UTOPIA IVX Prime)
In the individual operation control mode, each of the indoor units can have it’s independent temperature setting and
Thermo-ON/OFF status (as well as optional functions), even connected to a same outdoor unit. Indoor units will switch
on whenever they have load demand in an autonomous way, independently of other indoor unit needs.
Outdoor
unit
Remote control switch (PC-ARFP1E or later models)
Indoor unit
Control wiring
(H-LINK II)
Tset1
Tset4
Tset3
Tset2
Tset1
Tset4
Tset3
Tset2
Individual Thermo-ON/OFF Operation (group control, only available with UTOPIA IVX Prime)
In the individual Thermo-ON/OFF control mode, also known as group control, all indoor units connected to the same
remote controller are sharing same operation mode (Tset, operation mode, fan speed, etc.). Even if sharing same
operating parameters, each of them will have its independent Thermo-ON/OFF status, so they will switch on whenever
they have load demand in an autonomous way, independently of other indoor unit needs.
Additionally can be set other parameters (optional functions like fan stop, etc) per each indoor unit.
Tset1
Tset1
Tset1
Tset1
Tset1
Outdoor
unit
Remote control switch (PC-ARFP1E or later models)
Indoor unit
Control wiring
(H-LINK II)
Operating cable for remote control
Transition wiring
The transition wiring is required
when operate multiple indoor units
by 1 remote control switch