Daikin ERQ Service Manual page 97

ESIE09-05
1.1.5 Check Operation
* During check operation, mount front panel to avoid the misjudging.
* Check operation is mandatory for normal unit operation.
(When the check operation is not executed, alarm code "U3" will be displayed.)
Set to setting mode 1 (H1P led is
off ) (refer to "Setting mode 1")
Press and hold the TEST
OPERATION button (BS4) on
outdoor unit PC board for 5
seconds.
Check on operation
On completion of test operation, LED on outdoor unit PC board displays the following.
H3P ON: Normal completion
H2P ON: Abnormal completion →Check the AHU remote controller for
Test Operation
The test operation is started automatically.
The following judgements are conducted within 15 minutes(about 30
minutes at the maximum).
"Check for wrong wiring"
"Check stop valve for not open"
"Check of refrigerant charge"
"Pipe length automatic judgement"
The following indications are conducted while in test operation.
LED lamp on outdoor unit PC board
Remote controller Indicates "TEST OPERATION" on lower left.
abnormal display and correct it.
: http://splitoff.ru/tehn-doc.html
Test Operation
H2P flickers (test operation)
(V3057)
87