Kaden Installation Manual |
31
Using the wire controller
to set external static pressure
• You can use the unit’s automatic airflow adjustment
function to set external static pressure.
• Automatic airflow adjustment is the volume of blow-off 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 power supply wiring and duct installation
have been completed. Check that any closing dampers are
open.
3. Set the parameters for automatic airflow adjustment. When
the air conditioning unit is off, perform the following steps:
– Press the
COPY
button.
– Press
+
or
–
to select the AF.
–
Press
CONFIRM
. The air conditioning unit will then start the
fan for airflow automatic adjustment.
CAUTION
•
Do not
adjust the dampers when automatic airflow
adjustment is active.
After 3 to 6 minutes, the air conditioning unit stops operating
once automatic airflow adjustment has finished.
CAUTION
• If there is no change after airflow adjustment in the
ventilation paths, be sure to reset automatic airflow
adjustment.
• If there is no change to ventilation paths after airflow
adjustment, contact your dealer, especially if this
occurs after testing the outdoor unit or if the unit has
been moved to a different location.
•
Do not
use automatic airflow adjustment with remote
control, if you are using booster fans, outdoor air
processing unit, or a HRV via duct.
• If the ventilation paths have been changed, reset
airflow automatic adjustment as described from
step 3 onwards.
Manual fan setting
The system can be set manually based on four static
pressure settings.
Each setting has a low, medium and high speed range.
See fan performance curves on p.29 and p.30.
SP No.
External static pressure parameters
SP 1
0 – 40 Pa
SP 2
40 – 80 Pa
SP 3
80 – 120 Pa
SP 4
120 – 200 Pa
When the system is OFF, perform the following steps using the
wired controller.
– Press the
COPY
button and hold for 3 seconds.
– Press the
+
or
-
to select the required
SP
buttons.
– Press the
CONFIRM
button.
– Press the
CONFIRM
button.
The external static pressure settings is now complete.
ON will flash when the fan
is on during automatic
airflow adjustment