13. SET EXTERNAL STATIC PRESSURE
Using the wire controller to set external static pressure (some air conditioners).
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 automati-
cally adjusted to the quantity rated. CAUTION: This operation must only be carried out
with professional assistance.
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. Check that the air filter is properly
attached to the air suction side passage of the unit.
3. Set the parameters for automatic airflow adjustment. When the air conditioning
unit is off, perform the following steps:
- Press"COPY" long.
- Press "+" or "-" to select the AF.
- Press "CONFIRM". The air conditioning
unit will then start the fan for airflow
automatic adjustment.
DO NOT adjust the dampers when automatic airflow adjustment is active.
After 3 to 6 minutes, the air conditioning unit stops operating once auto-
matic airflow adjustment has finished.
Using the wire controller to set
When the air conditioning unit is off, perform the following steps:
- Press"COPY" long.
- Press "+" or "-" to select the SP.
- Press "CONFIRM" to set the airflow.
0 means a stable airflow volume, 1 to 4 means an increase in airflow volume.
- Press "BACK" to finish the setting.
ON will flash during when
the fan is on during auto-
matic airflow adjustment.
airflow rate (some air conditioners).
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