Installation Guide

Wiring
CAUTION
• While connecting the wires, please follow
the wiring diagram strictly.
• The refrigerant circuit can become very
hot. Keep the interconnection cable away
from the copper tube.
4. Clamp down the cable with the cable clamp.
The cable must not be loose or tug on the
u-lugs.
5. Reattach the electric box cover.
Using the wire controller to set external
static pressure (some models):
You can use the unit’s automatic airow
adjustment function to set external static
pressure.
Automatic airow adjustment is the volume
of blow-o air that has been automatically
adjusted to the quantity rated.
1. Make sure the test run is done with a dry
coil. If the coil is not dry, run the unit for 2
hours in FAN-ONLY mode to dry the coil.
2. Check that both the power supply wiring and
duct installation have been completed
Check that any closing dampers are open.
Check that the air lter is properly attached
to the air suction side passage of the unit.
3. If there is more than one air inlet and outlet,
adjust the dampers so that the airow rate
of each air inlet and outlet conforms with
the designed airow rate. Make sure the
unit is in FAN-ONLY mode. Press and set
the airow adjustment button on the
remote control to change the airow rate
from H or L.
4. Set the parameters for automatic airow
adjustment. When the air conditioning unit
is o, perform the follwoing steps:
- Press “COPY”.
- Press “+” or “-” to select the AF.
- Press “CONFIRM”. The air conditioning
unit will then start the fan for automatic
airow adjustment.
ON will ash when the fan
is on during automatic
airow adjustment.
After 3 to 6 minutes, the air conditioning
unit will stop operating, once automatic airow
adjustment has nished.
•
•
CAUTION
• DO NOT adjust the dampers when
automatic airow adjustment is active.
CAUTION
• If there is no change after airow
adjustment in the ventilation paths, be sure
to reset the automatic airow adjustment.
• If there is no change to ventilation paths
after airow adjustment, contact your dealer,
especially if this occurs after testing the
outdoor unit, or if the unit has been moved
to a dierent location.
• Don’t use automatic airow adjustment with
the remote control if you are using booster
fans, outdoor air processing units, or an HRV
via duct.
• If the ventilation paths have been changed,
reset airow automatic adjustment as
described from step 3 onwards.
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