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9. FINISHING
(1) Reattach cover A and B. Then fasten the control box back into its original position
using the 4 tapping screws.
(2) Attach the remote controller cable, transmission cable, power supply cable, RB unit
cable (for Reverse cycle model) and cable clips. Make sure that they are positioned so
that they will not interfere with opening and closing of the intake grille or with removal
and installation of the air fi lters.
(3) Close the piping outlet with the closing material (putty etc.).
(4) Install the fi lter guide.
(5) Install the intake grilles.
(6) Install side covers A and B (if the unit is installed in a half-concealed orientation, only
install side cover A).
(7) Install the air fi lters.
10. TEST RUN
] 1
10.1. Test run using PCB (Outdoor unit)
• Refer to the Installation Manual for the outdoor unit if the PCB for the outdoor unit is to
be used for the test run.
10.2. Test run using remote controller
• Refer to the Installation Manual for the remote controller to perform the test run using
the remote controller.
• When the air conditioner is being test run, the OPERATION and TIMER indicator lamps
fl ash slowly at the same time.
11. CHECK LIST
Pay special attention to the check items below when installing the indoor unit(s).
] 1
After installation is complete, be sure to check the following check items again.
Check items
Has the indoor unit been
installed correctly?
Has there been a check for
gas leaks (refrigerant pipes)?
Has heat insulation work
been completed?
Does water drain eas-
ily from the indoor units?
Is the voltage of the power
source the same as that indicated
on the label on the indoor unit?
Are the wires and pipes all
connected completely?
Is the indoor unit earthed
(grounded)?
Is the connection cable the
specifi ed thickness?
Are the inlets and outlets
free of any obstacles?
Does start and stop air con-
ditioner operation by remote
controller or external device?
After installation is completed,
has the proper operation and han-
dling been explained to the user?
En-15
Cover A
Top of the Cover B
Top of the Cover A
Cover B
Cable clip Remote controller cable
Transmission cable
Power supply cable
If not performed correctly
Vibration, noise, indoor unit may drop
No cooling, No heating
Water leakage
Water leakage
No operation, heat or burn damage
No operation, heat or burn damage
Short circuit
No operation, heat or burn damage
No cooling, No heating
No operation
12. ERROR CODES
If you use a wired type remote controller, error codes will appear on the remote controller
1
display. If you use a wireless remote controller the lamp on the photodetector unit will
output error codes by way of blinking patterns. See the lamp blinking patterns and error
codes in the table below.
Error display
OPERATION
indicator
lamp (green)
lamp (orange)
(1)
(1)
(1)
(3)
(3)
(4)
(4)
(5)
(5)
(9)
Display mode
( ) : Number of fl ashing
Wired Remote Controller Display
Check
box
Wired
Remote
TIMER
FILTER
Controller
indicator
indicator
Error CODE
lamp (red)
(2)
(4)
(6)
(1)
(2)
(1)
(2)
(1)
(3)
(15)
: 0.5s ON / 0.5s OFF
: 0.1s ON / 0.1s OFF
Error code
Error contents
Remote controller
communication error
Anomalous network
communications
Parallel communication
error
Power frequency error
Model information error/
EEPROM accession
error
Room temperature
thermistor error
Indoor heat exchanger
temperature thermistor
error
Indoor fan motor error
Drainage error
Outdoor unit error
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