Using The Wire Controller To Set External Static Pressure; Using The Wire Controller To Set Airflow Rate - Airwell DDMX-035N-09M25 Technical Manual

2.3 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. Check that the air filter 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 airflow rate of each air inlet and
outlet conforms with the designed airflow rate. Make sure
the unit is in FAN ONLY mode. Press and set the airflow
adjustment button on the remote control to change the
airflow rate from H or L.
4. Set the parameters for automatic airflow adjustment.
When the air conditioning unit is off, perform the
following steps:
- When the unit is turned off, hold the MODE button and
FAN button down together for three seconds. ("AF"
indicator flashes for 3 times.)
△ ▽
- Press " " or " " to select the AF.
- Press "MODE". The air conditioning unit will then start
the fan for airflow automatic adjustment.
After 3 to 6 minutes, the air conditioning unit stops
operating once automatic airflow adjustment has finished.
Caution: DO NOT adjust the dampers when automatic
airflow adjustment is active.
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.
2.4 Using the wire controller to set airflow
rate
When the air conditioning unit is off, perform the
following steps:
1.Press"MODE" and "FAN" for three seconds.
△ ▽
2.Press " " or " " to select the SP.
3.Press "MODE" to set the airflow rate in the range of
0~4.
"0": No airflow change
"1"~"4":Airflow increase progressively
4.Press "ON/OFF" to finish the airflow setting.
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