Daikin RXYSQ4-5-6PA7V1B Service Manual page 93

Test Operation
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" on page 107.)
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
82
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The test operation is started automatically.
 The following judgements are conducted within 15 minutes(about 30
minutes at the maximum).

2"Check for wrong wiring"

2"Check stop valve for not open"

2"Check of refrigerant charge"

2"Pipe length automatic judgement"

The following indications are conducted while in test operation.

2LED lamp on outdoor unit PC board

2Remote controller


→
Check the indoor unit remote controller for
abnormal display and correct it.
H2P flickers (test operation)
Indicates "UNDER CENTRALIZED CONTROL"
on upper right.
Indicates "TEST OPERATION" on lower left.
SiBE34-802
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(V3057)
Test Operation