Mitsubishi Electric PKH18FK Technical & Service Manual page 63

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.
[Notes on Signs]
X1:Relay (for check lamp)
X2:Relay (for operation lamp)
RL:Check Lamp
GL:Operation Lamp
[Field supplied parts]
Relays:12V DC with rated coil power con-
sumption below 0.9W.
Lamps:Matching to power supply voltage.
<Wiring diagram>
RL-1
Power
GL-1
supply
RL-2
GL-2
RL-3
GL-3
Multiple Remote Control Display
GREEN
X1
YELLOW
X2
ORANGE
Electrical insulation is needed.
Wiring at the actual place
X1-1
X2-1
X1-2
X2-2
X1-3
X2-3
RL
X1
X2
GL
Power
supply
<System>
3wires
Power
3wires
supply
3wires
2wires
Muitiple remote control
Remote
ON-OFF display
controller
(Field supply)
(Operation check)
X1
X2
X1
X2
X1
X2
Relay box
Indoor controller board
No.1 unit No.2 unit
Remote Relay box
controller (Field supply)
cable
Remote
controller
Multiple remote
controller adapter
1
No.1 unit
5
1
No.2 unit
5
1
No.3 unit
connect to
5
the connector CN51
No.3 unit
Remote
controller
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