Daikin VRV RXYQ72-384XAYCA, Service Manual

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SiUS342004EB Field Settings for Indoor Unit
Part 5 Field Settings and Test Operation 152
Note(s)
Note(s)
1.3.10 Detection Rate Setting (For units with an infrared presence sensor
only)
Set the sensitivity of the infrared presence sensor.

The infrared presence sensor can be disabled by selecting the Second code No. 04 .
When the infrared presence sensor is disabled, the remote controller menu does not display some
functions such as the automatic draft reduction, energy-saving operation in absence and halt in
absence.

: Factory setting
1.3.11 Automatic Airflow Adjustment
Make external static pressure setting automatically using automatic airflow adjustment (11 (21)-7),
or manually using external static pressure settings (13 (23)-6).
The volume of blow-off air is automatically adjusted to the rated quantity.
Make settings before performing the test operation of the outdoor unit.
Setting procedure
1. Make sure that electric wiring and duct construction have been completed. In particular, if the
closing damper is installed on the way of the duct, make sure that it is open. In addition, make
sure that a field-supplied air filter is installed within the air passageway on the suction port side.
2. If there are multiple blow-off and suction ports, adjust the throttle part so that the airflow volume
ratio of each suction/blow-off port conforms to the designed airflow volume ratio. In that case,
operate the unit with fan operation mode. When you want to change the airflow rate, adjust it by
pressing the airflow rate control button to select High, Middle or Low.
3. Make settings to adjust the airflow rate automatically. After setting to fan operation mode, enter
the field setting mode while operation is stopped and then select the Mode No. 11 (21), set the
First Code No. to 7 and the Second Code No. to 03 .
4. After setting, return to the basic screen (to the normal mode in the case of a wireless remote
controller) and press the ON/OFF button. Fan operation for automatic airflow adjustment will
start with the operation lamp turned ON. Do not adjust the throttle part of the suction and
blow-off ports during automatic adjustment. After operation for approximately one to fifteen
minutes, airflow adjustment automatically stops with the operation lamp turned OFF.
5. After operation stopped, make sure that the Second Code No. is set to 02 as in the following
table by indoor unit with the Mode No. 11 (21). If operation does not stop automatically or the
Second Code No. is not set to
02
, return to the step 3 above to make settings again.

: Factory setting
1. Make sure that the external static pressure is within the range of specifications before making
settings. If it is outside the range, automatic adjustment fails, which may cause an insufficient
airflow volume or leakage of water.
2. If the air passageway including duct or blow-off ports is changed after automatic adjustment,
make sure to perform automatic airflow adjustment again.
Mode
No.
First Code
No.
Second Code
No.
Contents
11 (21) 6
01 High sensitivity
02 Low sensitivity
03

Standard sensitivity

04 Infrared presence sensor disabled
Mode
No.
First Code
No.
Second Code
No.
Contents
11 (21) 7
01

OFF

02 Completion of airflow adjustment
03 Start of airflow adjustment