Daikin CMSQ200A7W1B Service Manual page 89

Test Operation
Perform the test operation as described in the paragraph "Test operation procedure" on page
77.
Test operation procedure
1. Close all front panels except the front panel of the electric box.
2. Turn ON the power to all outdoor units and the connected indoor units.
3. Make the field setting as described in the paragraph "1.2.6.3 Field setting" on page 74.
4. Press the BS1 MODE button once, and set to the SETTING MODE (H1P LED = OFF).
5. Press and hold the BS4 TEST button down for 5 seconds or more. The unit will start the test
6. Close the front panel in order to let it not be the cause of misjudgement.
7. Check the test operation results by the LED display on the outdoor unit.
8. When the test operation is fully completed, normal operation will be possible after 5 minutes.
78
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
Judgement of piping length
It takes ±40 minutes to complete the check operation.
Be sure to turn on the power 6 hours before operation in order to have power running to the
crank case heater and to protect the compressor.
operation.
The test operation is automatically carried out in cooling mode, the H2P LED will light up
and the messages "Test operation" and "Under centralized control" will display on the
remote controller.
It may take 10 minutes to bring the state of the refrigerant uniform before the compressor
starts.
During the test operation, the refrigerant running sound or the magnetic sound of a
solenoid valve may become loud and the LED display may change, but these are not
malfunctions.
During the test operation, it is not possible to stop the unit operation from a remote
controller. To abort the operation, press the BS3 RETURN button. The unit will stop after
±30 seconds.
H1P
Normal completion
Abnormal completion
Otherwise, refer to "Correcting after abnormal completion of the test operation" on page 79
to take actions for correcting the abnormality.
H2P H3P H4P
h h k h
h k k h
H5P H6P H7P
h h h
h h h
SiBE28-805
Test Operation