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11. TEST OPERATION
Refer to the section of “FOR THE FOLLOWING ITEMS, TAKE SPECIAL CARE DURING CONSTRUC
-
TION AND CHECK AFTER INSTALLATION IS FINISHED” .
CAUTION
When performing field setting or test operation without attaching the decoration panel, do not
touch the drain pump. This may cause electric shock.
•
Make sure that wiring work for the outdoor units is completed.
• Make sure the control box lids are closed on the indoor and outdoor units.
• After finishing installation work for refrigerant piping, drain piping, and electrical wiring, clean the insides
and the decoration panels of the indoor units.
•
Conduct test operation in accordance with the instructions in the installation manual included with the
outdoor units.
•
If test operation is conducted with the decoration panel installed, check that the decoration panel’s swing
flap works correctly.
• If interior work is still unfinished when test operation finishes, explain to the customer that the air con
-
ditioner must not be operated until interior work is completed in order to protect the indoor units. (Sub-
stances generated from paints and adhesives used for the interior work may contaminate indoor units if
the air conditioner is operated.)
•
Refer to the diagnoses below if the unit does not operate properly.
•
After completing the test run, press the INSPECTION/TEST OPERATION button once to put the unit in
inspection mode, and make sure the malfunction code is “00”. (=normal) If the code reads anything other
than “00”, refer to the malfunction diagnoses below.
•
Press the INSPECTION/TEST OPERATION button four times to return to normal operation mode.
•
When using wireless remote controllers, conduct test operation after installing the decoration panel.
*
*
*
[Mode switching]
Normal operating mode
Field setting
Once
“Error code”
display
Once
“Indoor unit type
code” display
Measures
Once
“Outdoor unit type
code” display
Test run
Once
Once
* After leaving 10 seconds or
more, the mode returns to
the normal operating mode.
11-1 Troubleshooting
•
When the wired remote controller display is in any of the states described in Table 6, inspect for the
corresponding issues. Table 6
Table 6
Malfunction
Remote controller display
•
Power supply trouble or Open phase connection
•
Wrong wiring between indoor and outdoor unit
•
Indoor PC board faulty
•
Wrong remote controller conection wiring
•
Remote controller faulty
•
Fuse faulty
No display
•
Indoor PC board faulty
•
Wrong wiring between indoor and outdoor unit
88*
•
Wrong wiring between indoor and outdoor unit
88 flashing
*After turning on the power, the maximum is 90 seconds, although it will only display “88”. This is not a
problem, and it will be set for 90 seconds.
Once
(Press
4 seconds
or more)
Once