Mitsubishi Electric PK12FK Technical & Service Manual page 52

6. MULTIPLE REMOTE CONTROL DISPLAY
You can control serveral units with a multiple remote control display,by
wiring an optional multipe display adapter (PAC-SA88HA-E) with relays
and lamps on the market.
6-1 How to wire
(1) Connect the multipe 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 >
5
CN51
1
connector(5P)
RED
BROWN
Optional multiple display
adapter
The maximumdistance between
indoor board and relay is 10m.
<System>
3wires
Power
3wires
supply
3wires
No.1 unit
2wires
Muitiple remote control
ON-OFF display Remote
(Field supply) controller
(Operation check)
<Wiring diagram>
RL-1
Power
GL-1
supply
RL-2
GL-2
RL-3
GL-3
Multiple Remote Control Display
52
GREEN
X1
YELLOW
X2
ORANGE
Electrical insulation is needed.
Wiring at the actual place
No.2 unit
Remote Relay box
controller (Field supply)
cable
Remote
controller
X1-1
X2-1
X1-2
X2-2
X1-3
X2-3
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 con-
Lamps:Matching to power supply voltage.
Remote
controller
X1
X2
X1
X2
X1
X2
Relay box
Indoor controller board
sumption below 0.9W.
Multiple remote
controller adapter
1
No.1 unit
5
1
No.2 unit
5
1
No.3 unit
connect to
5
the connector CN51