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Fresh-air inlet box
3
Installing the duct
• Perform the indentation ventilation on the Fresh-air
inlet box using the duct fan shown in the right figure.
• Confirm the processed outside air should be ranged
from 54°F to 86°F (12 to 30°C).
• Confirm the sound insulation chamber is installed.
4
Duct fan wiring
• The interlock wiring should be applied between the duct fan and the indoor unit ventilator.
Insert the connector to CN60 on the main P.C. board of the indoor unit and connect the duct fan driving relay
(DC12V).
The thick line (
• After installing the duct, perform the test run to confirm whether the duct fan and the ventilation of the indoor
unit work starting or stopping at the same timing. (For the test run, following to the instructions described on
the indoor unit installation manual.)
Tighten the clamp with the (9)
wire and the remote control wire.
Draw the (9) wire in the same way
as remote controller wire. Pull out
an end of the wire from the indoor
unit frame.
208/230V AC
5-EN
CAUTION
) shows the connection circuit.
Closed end connector
Closed end connector
Duct fan drive relay
RELAY
Duct fan
Sound
insulation
chamber
Duct fan
Processed
outside air
Outside air filter
(9) Wire
– 5 –
Installation Manual
Fresh-air inlet box
Indoor unit
Fresh-air
chamber
CN60
Main control
P.C. board
MCC-1570
(White)
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