English2411. TEST OPERATIONRefer to the section of “FOR THE FOLLOWING ITEMS, TAKE SPECIAL CARE DURING CONSTRUC-TION AND CHECK AFTER INSTALLATION IS FINISHED” .CAUTIONWhen performing field setting or test operation without attaching the decoration panel, do nottouch 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 insidesand the decoration panels of the indoor units.• Conduct test operation in accordance with the instructions in the installation manual included with theoutdoor units.• If test operation is conducted with the decoration panel installed, check that the decoration panel’s swingflap 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 ifthe 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 ininspection mode, and make sure the malfunction code is “00”. (=normal) If the code reads anything otherthan “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 modeField settingOnce“Error code”display Once“Indoor unit typecode” displayMeasuresOnce“Outdoor unit typecode” displayTest runOnceOnce* After leaving 10 seconds ormore, the mode returns tothe normal operating mode.11-1 Troubleshooting• When the wired remote controller display is in any of the states described in Table 6, inspect for thecorresponding issues. Table 6Table 6MalfunctionRemote 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 faultyNo display• Indoor PC board faulty• Wrong wiring between indoor and outdoor unit88*• Wrong wiring between indoor and outdoor unit88 flashing*After turning on the power, the maximum is 90 seconds, although it will only display “88”. This is not aproblem, and it will be set for 90 seconds.Once(Press4 secondsor more)Once