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10. TEST RUNNING
• Press the remote control unit test run button while
the air conditioner is running.
• At the end of test running, press the remote control
unit start/stop button. (Fig. 38)
Fig. 38
START
STOP
A B C D
Operation can be checked by lighting and flashing of
the display section OPERATION and TIMER lamps.
Perform judgement in accordance with the following.
• Test running
When the air conditioner is run by pressing the
remote control unit test run button, the OPERATION
and TIMER lamps flash slowly at the same time.
• Error
The OPERATION and TIMER lamps operate as fol-
lows (Table 5) according to the error contents.
Error display
0.5 sec
ON
OPERATION
LAMP
OFF
5 sec
0.1 sec
ON
TIMER
LAMP
OFF
0.1 sec
0.5 sec
ON
OPERATION
LAMP
OFF
5 sec
0.1 sec
ON
TIMER
LAMP
OFF
0.1 sec
START/STOP button
TEST RUN button
Table 5
Error
contents
0.5 sec
Two quick
flashes
Room
temperature
repeated
thermistor
abnormal
temperature
0.1 sec
detected
ON/OFF
repeated
0.5 sec
Three quick
flashes
Piping
repeated
thermistor
abnormal
temperature
0.1 sec
detected
ON/OFF
repeated
CHECK ITEMS
(1) INDOOR UNIT
(1) Is operation of each button on the remote con-
trol unit normal?
(2) Does each lamp light normally?
(3) Do not air flow direction louvers operate normal-
ly?
(4) Is the drain normal?
(5) Is there any abnormal noise and vibration during
operation?
(2) OUTDOOR UNIT
(1) Is there any abnormal noise and vibration during
operation?
(2) Will noise, wind, or drain water from the unit dis-
turb the neighbors?
(3) Is there any gas leakage?
•
Do not operate the air conditioner in the test run-
ning state for a long time.
•
For the operation method, refer to the operating
manual and perform operation check.
11. CUSTOMER GUIDANCE
Explain the following to the customer in accordance
with the operating manual:
(1) Starting and stopping method, operation switching,
temperature adjustment, timer, air flow switching,
and other remote control unit operations.
(2) Air filter removal and cleaning, and how to use the
air louvers.
(3) Give the operating and installation manuals to the
customer.
12. FRONT PANEL REMOVAL
Install the front panel and intake grille
securely. If installation is imperfect, the
front panel or intake grille may fall off
and cause injury.
1. INTAKE GRILLE REMOVAL
(1) Open the intake grille.
(2) Open the intake grille and lift the intake grille upward
until the hook at the top of the intake grille is
unhooked.
Fig. 39
(Hook)
Open
Intake
grille
Lift
– 141 –
(Hook)
Open
Lift
Lift
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