Mitsubishi Electric Mr.SLIM PKH-1.6FKA Technical & Service Manual page 69

5. MULTIPLE REMOTE CONTROL DISPLAY
You can control several units with a multiple remote control display,by
wiring an optional multiple display adapter (PAC-SA88HA-E) with relays
and lamps on the market.
5-1 How to wire
(1) Connect the multiple display adapter to the connector CN51 on the
indoor controller board.
(2) Wire three of the five wires from the multiple display adapter as shown
in the figure below.
<Wiring >
GREEN
5
CN51
YELLOW
ORANGE
1
connector(5P)
RED
BROWN
Optional multiple display
adapter
The maximumdistance between
indoor board and relay is 10m.
<System>
3wires
Power
3wires
supply
3wires
2wires
Muitiple remote control
Remote
ON-OFF display
controller
(Field supply)
(Operation check)
<Wiring diagram>
RL-1
Power
GL-1
supply
RL-2
GL-2
RL-3
GL-3
Multiple Remote Control Display
6. AUTO RESTART FUNCTION
By setting the dip switch SW1-10 to ON, the air conditioner can be started/stopped by power supply ON/OFF.
If the air conditioner is OFF before the power failure, it will not start operation by power restore.
<Wiring>
A
B
Brown
Red
For remote control, connect the optional timer adapter (PAC-SA89TA-E)
X1
X2
Electrical insulation is needed.
Wiring at the actual place
No.1 unit No.2 unit
Remote Relay box
controller (Field supply)
cable
Remote
controller
X1-1
X2-1
X1-2
X2-2
X1-3
X2-3
A
B
Brown
Red
Orange Remote controller Orange
RL
X1
X2
GL Power
supply
[Notes on Signs]
X1:Relay (for check lamp)
X2:Relay (for operation lamp)
RL:Check Lamp
GL:Operation Lamp
No.3 unit
[Field supplied parts]
Relays:12V DC with rated coil power consumption below 0.9W.
Lamps:Matching to power supply voltage.
Remote
controller
X1
X2
X1
X2
X1
X2
Relay box
A : An optional timer adapter
B : A single-throw switch
Remote controller
69
Indoor controller board
Multiple remote
controller adapter
1
No.1 unit
5
1
No.2 unit
5
1
No.3 unit
connect to
5
the connector CN51
CN51