English
20
10. TEST OPERATION
(1) Make sure the service lids are closed on the indoor and outdoor units.
(2) Refer to the section of “FOR THE FOLLOWING ITEMS, TAKE SPECIAL CARE DURING CONSTRUC-
TION AND CHECK AFTER INSTALLATION IS FINISHED” .
•
After finishing the construction of refrigerant piping, drain piping, and electric wiring, conduct test operation
accordingly to protect the unit.
10-1 HOW TO TEST OPERATION
1
Open the gas side stop valve.
2
Open the liquid side stop valve.
3
Electrify for more than 6 hours (Not required in case of a unit exclusively designed for cooling only).
4
Set to cooling operation with the remote controller and start operation by pushing ON/OFF button
(
).
5
Press INSPECTION/TEST OPERATION button (
) 4 times (2 times for wireless remote controller)
and operate at Test Operation mode for 3 minutes.
6
Press AIR FLOW DIRECTION ADJUST button (
) to make sure the unit is in operation.
7
Press INSPECTION/TEST OPERATION button (
) and operate normally.
8
Confirm function of unit according to the operation manual.
PRECAUTIONS
•
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.
10-2 HOW TO DIAGNOSE FOR PROBLEMS
With the power on. Troubles can be monitored on the remote controller or the LED’s on the PC
board of the indoor unit.
䡵
Trouble shooting with the display on the liquid crystal display remote controller.
1
With the wired remote controller. (NOTE 1)
When the operation stops due to trouble, operation lamp flashed, and “
” and the error code are
indicated on the liquid crystal display . In such a case, diagnose the fault contents by referning to
the table on the Error code list it case of group control, the unit No. is displayed so that the indoor
unit no with the trouble can be recognized. (NOTE 2)
2
With the wireless remote controller.
(Refer also to the operation manual attached to the wireless remote controller)
When the operation stops due to trouble. the display on the indoor unit flashes. In such a case, diag-
nose the fault contents with the table on the Error code list looking for the error code which can be
found by following procedures. (NOTE 2)
(1)
Press the INSPECTION /TEST OPERATION button, “
” is displayed and “ 0 ” flashes.
(2)
Press the PROGRAMMING TIME button and find the unit No. which stopped due to trouble.
Number of beeps 3 short beeps ......... Perform all the following operations
1 short beep ........... Perform (3) and (6)
1 long beep ............ No trouble
(3)
Press the OPERATION MODE SELECTOR button and upper figure of the error code flashes.
(4)
Continue pressing the PROGRAMMING TIME button unit it makes 2 short beeps and find the upper
code.
(5)
Press the OPERATION MODE SELECTOR button and lower figure of the error code flashes.
(6)
Continue pressing the PROGRAMMING TIME button unit it makes a long beep and find the lower
code.
•
A long beep indicate the error code.
䡵
Trouble shooting with the LEDs on the PC board (Refer to Table 9 )
The following checking can be made with the service monitor LEDs (green). (Normal when flashing)
: LED on
: LED off
: LED flashing
: Not used for trouble shooting
TEST
TEST
01_EN_3P083811-3T.fm Page 20 Friday, September 3, 2004 10:17 AM
