Mitsubishi Electric Mr.SLIM PLA-ZM EA Series Installation Manual page 11

6. Electrical work
6.1.2. Separate indoor unit/outdoor unit power supplies (For PUHZ/PUZ application only)
The following connection patterns are available.
The outdoor unit power supply patterns vary on models.
* The indoor power supply terminal kit is required.
* Affix label B that is included with the manuals near each wiring diagram for the indoor and outdoor units.
* The indoor power supply terminal kits are required.
* Affix label B that is included with the manuals near each wiring diagram for the indoor and outdoor units.
Note:
Some units cannot be used in a simultaneous twin/triple/quadruple system. Refer to the outdoor unit installation manual for details.
If the indoor and outdoor units have separate power supplies, refer to the table below.
If the indoor power supply terminal kit is used, change the indoor unit electrical box
wiring refering to the figure in the right and the DIP switch settings of the outdoor
unit control board.
Indoor power supply terminal kit (option)
Indoor unit electrical box connector
connection change
Label affixed near each wiring diagram
for the indoor and outdoor units
Outdoor unit DIP switch settings (when
using separate indoor unit/outdoor unit
power supplies only)
* There are 3 types of labels (labels A, B and C). Affix the appropriate labels to the
units according to the wiring method.
1:1 System
Simultaneous twin/triple/quadruple system
Required
Required
Required
ON 3
(SW8)
OFF 1 2
Set the SW8-3 to ON.
A Outdoor unit power supply
B Earth leakage breaker
C Wiring circuit breaker or isolating switch
D Outdoor unit
E Indoor unit/outdoor unit connecting cables
F Remote controller
G Indoor unit
H Option
J Indoor unit power supply
A Outdoor unit power supply
B Earth leakage breaker
C Wiring circuit breaker or isolating switch
D Outdoor unit
E Indoor unit/outdoor unit connecting cables
F Remote controller
G Indoor unit
H Option
J Indoor unit power supply
<Replacing the indoor unit terminal block>
3
2
4
1
1 Disconnect connector CN3C (blue) from
the indoor controller board.
2 Disconnect connector CN01 (black) from
the indoor controller board.
3 Disconnect the tab terminal.
4 Remove the screw from the terminal block.
2
3
1
4
Install the optional Power supply terminal kit.
Refer to the installation manual that comes
with the optional Power supply terminal kit
for details.
1 Secure the terminal block with the screw.
2 Insert the tab terminal.
3 Connect connector CN01 (black) to the
indoor controller board.
4 Connect connector CN3C (blue) to the
indoor controller board.
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