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13. FRESH-AIR INTAKE
(1) Open up the knockout hole for the fresh-air intake,
as shown in Fig. 50. (If using half-concealed installa-
tion, open up the top knockout hole instead.)
Fig. 50
For half concealed
installation
(1) When removing the cabinet (iron
plate), be careful not to damage the
indoor unit internal parts and sur-
rounding area (outer case).
(2) When processing the cabinet (iron
plate), be careful not to injure your-
self with burrs, etc.
(2) Fasten the round flange (optional) to the fresh-air
intake, as shown in Fig. 51. (If using half-concealed
installation, attach to the top.)
Fig. 51
[After completing "2. INDOOR UNIT INSTALLATION"...]
(3) Connect the duct to the round flange.
(4) Seal with a band and vinyl tape, etc. so that air does
not leak from the connection.
Fig. 52
Duct
Indoor unit
Round duct (option parts)
14. A ERROR DISPLAY
Operation can be checked by lighting and flashing of
the display section OPERATION, TIMER and VERTICAL
SWING lamps.
Perform judgment in accordance with the following.
Fig. 53
SWING SWING TIMER OPERATION
• Test running
When the air conditioner is run by pressing the
remote controller test run button, the OPERATION,
TIMER and VERTICAL SWING lamps flash slowly at
the same time.
• Error
The OPERATION, TIMER and VERTICAL SWING
lamps operate as follows (Table 7) according to the
error contents.
Error display
OPERATION
TIMER
lamp
lamp
Blinks
Blinks
Pulses
Blinks
4 times
Pulses
Blinks
6 times
Pulses
Blinks
2 times
Pulses
Blinks
3 times
Pulses
Blinks
5 times
Pulses
Blinks
2 times
Pulses
Blinks
3 times
Pulses
Blinks
6 times
Pulses
Blinks
5 times
Pulses
Blinks
7 times
Pulses
Blinks
4 times
– 13 –
VERTICAL SWING lamp (Orange)
TIMER lamp (Green)
OPERATION lamp (Red)
MANUAL
AUTO
Table 7
Error contents
VERTICAL
SWING lamp
Model information abnormal
Goes off
(permanent type)
Drain abnormal (permanent
Goes off
type)
Goes off
Indoor fan abnormal
Room air temperature
Goes off
thermistor open circuited
Room air temperature
Blinks
thermistor shortcircuited
Piping thermistor open
Goes off
circuited
Piping thermistor short-
Blinks
circuited
Serial communications
Goes off
abnormal
Reverse phase wire
Goes off
connection abnormal
Outdoor heat exchange
Goes off
thermistor open circuited
Outdoor heat exchange
Blinks
thermistor shortcircuited
Goes off
Low pressure abnormal
Outdoor discharge
Goes off
thermistor open circuited
Outdoor discharge
Blinks
thermistor shortcircuited
Discharge temperature
Goes off
abnormal
Outdoor air temperature
Goes off
thermistor open circuited
Outdoor air temperature
Blinks
thermistor shortcircuited
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