Check Operation - Daikin RTSQ20PY1 Service Manual

SiBE31-801_C
1.4

Check Operation

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1.4.1 Procedure of Check Operation
1. Close all front panels except the front panel of the electric component box.
2. Turn ON the power to the outdoor unit and the connected indoor units.
3. Make the field setting as described in the paragraph "3.2 Field Setting from Outdoor Unit" on
4. Press the BS1 MODE button once, and set to the SETTING MODE (H1P LED = OFF).
5. In case the leak detection function is required,
Test Operation
Make sure to carry out the check operation after the first installation. Otherwise, the
malfunction code "U3" will be displayed on the remote controller and normal operation
cannot be carried out. When the check operation is finished normally, normal operation can
be carried out after approx. 5 minutes.
<In case of Single system>
Settings and display confirmations are to be made at the EL. COMPO. BOX.
<In case of Multi system>
Check the settings and display results on the master remote controller.
In case the unit is operated with the leak detection function available:
the outdoor temperature must be 0°C DB~43°C DB
the indoor temperature must be 10°C DB~32°C DB
In case the unit is operated out of the temperature range as instructed above, the display of
the remote controller shows
detection function.
In the check operation, the following checks and judgement will be performed:
Check of the stop valve opening
Check for wrong wiring
Check of refrigerant overcharge
Initial refrigerant detection
In case the leak detection function is available, the check operation will last 2 hours,
otherwise it takes between 40 and 60 minutes to complete the check operation.
Abnormalities on indoor units can not be checked for each unit individual. After the check
operation is finished, check the indoor units one by one by performing a normal operation
using the remote controller.
Be sure to turn on the power 6 hours before operation in order to have power running to the
crankcase heater and to protect the compressor.
page 166.
press and hold the BS4 TEST button down for 5 seconds or more. The unit will start the test
operation.
In case the leak detection function is not required,
go into setting mode 2 by pressing the BS1 MODE button for 5 seconds. The H1P LED is on
Perform following steps.
1) Press the BS2 SET button 3 times.
2) Press the BS3 RETURN button once to confirm.
3) Press the BS2 SET button in order to change the LED display to the following display.
4) Press the BS3 RETURN button once to confirm.
5) Press the BS3 RETURN button a second time to start the test operation. The unit will
start the test operation.
U3
and the unit operates without the availability of the leak
H1P H2P H3P H4P H5P H6P H7P
k h h h h k k
H1P H2P H3P H4P H5P H6P H7P
k h h h h h l
H1P H2P H3P H4P H5P H6P H7P
k h h h h l h
Test Operation
k
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