Remote Controller Operation; Wired Remote Controllers; Wireless Remote Controllers - Mitsubishi Electric PAR-21MAA Technical Manual

1-3 Wired Remote Controller or Wireless Remote Controller Receiver Built into Indoor Unit
[Floor type (wired remote controller)/4-way ceiling cassette type, ceiling suspended type, wall mounted type (wireless remote
controller)]
Slim Air Conditioner System
Outdoor unit
OC
Indoor unit IC
Wired remote
controller or
reciever R
[Reference]
For systems containing built-in wired remote controllers (or built-in wireless receiver adapters) and consisting of simultaneous twin, triple and quad
units only, the installed remote controllers (or receiver adapters) must be connected without changing any settings. If the system consists of
different models, keep only one of the remote controllers built into the indoor units, or remove all the remote controller cables and connect them
to other models according to 1-1 or 1-2.
Use the wired remote controllers without setting them as the main and sub controllers.

2. 2-remote Controller Operation

2-1 2 Wired Remote Controllers

Slim Air Conditioner System
Outdoor unit OC
Indoor unit IC
System
diagram
Wired remote
(Wired
controller R
remote
controller)
Outdoor unit OC
Indoor unit IC
Wired remote
controller R
Slim Air Conditioner System
Outdoor unit OC
Indoor unit IC
System
diagram
Wired remote
(Wired
controller R
remote
controller)
Outdoor unit OC
Indoor unit IC
Wired remote
controller R
[Reference]
If simultaneous twin or triple or quad, connect the remote controller to any one of the indoor units. All functions of the indoor unit can be
controlled even if different models (different types) are mixed.
Do not use crossover wiring among indoor units with simultaneous twin, triple, quad units. (Prohibited item.)
Set one of the remote controllers as the main controller (initial setting) and the other as the sub controller using the remote controller's function
selection.
Standard 1:1
OC
Indoor/outdoor
3(2)
connection cable
IC
R
* Numbers given in ( ) apply when power is supplied to the indoor and outdoor units separately.
Standard 1:1
Indoor/outdoor
connection cable
Remote
controller
cable
OC
IC
2
R-1
Simultaneous Triple
OC
3(2)
3(2)
IC-1
2
2
R-1
OC
3(2)
IC-1
2
R-1
* Numbers given in ( ) apply when power is supplied to the indoor and outdoor units separately.
Simultaneous Twin
OC
3(2)
3(2)
IC-1 IC-2
R-1 R-2
OC
3(2)
IC
2
2
R-1 R-2
3(2)
2
R-2
3(2)
IC-2 IC-3
R-2
3(2)
3(2)
IC-2 IC-3
2
R-2
Simultaneous Triple
OC OC
3(2) 3(2)
3(2)
IC-1 IC-2 IC-3 IC-1
R-1 R-2 R-3 R-1
Simultaneous Twin
OC
3(2)
3(2)
IC-1
2
2
R-1
OC
3(2)
3(2)
IC-1
2
R-1
Simultaneous Quad
OC
3(2) 3(2)
IC-1 IC-2
2
2
R-1 R-2
OC
3(2)
3(2)
IC-1 IC-2
2
R-1
Simultaneous Quad
3(2) 3(2)
3(2) 3(2)
IC-2 IC-3 IC-4
R-2 R-3 R-4
(R: Wired remote controller)
IC-2
R-2
IC-2
2
R-2
3(2) 3(2)
IC-3 IC-4
3(2) 3(2)
IC-3 IC-4
2
R-2
6