15
English
9-2 SETTING AIR DISCHARGE DIRECTION
• Refer to the installation manual attached to the sealing ma-
terial of air discharge outlet sold separately and engineer-
ing data book, for ceiling height settings for four-direction
(part of corner closed off) and three-direction.
(The SECOND CODE NO. is factory set to 01 (all round
outlet) before shipping.)
9-3 SETTING WHEN AN OPTIONAL ACCESSORY
IS ATTACHED
• For setting when attaching an optional accessory, refer to
the installation manual attached to the optional accessory.
9-4 SETTING FAN SPEED DURING THERMOSTAT
OFF
• Set the fan speed according to the using environment after
consultation with your customer.
• When the fan speed is changed, explain the set fan speed
to your customer.
Table 5
Setting
MODE
NO.
FIRST
CODE NO.
SECOND
CODE NO.
Fan speed during
cooling
thermostat OFF
LL
(Extra low)
12 (22) 6
01
Setting 02
Fan speed during
heating
thermostat OFF
LL
(Extra low)
12 (22) 3
01
Setting 02
9-5 SETTING FILTER SIGN
• A message to inform the air lter cleaning time will be indi-
cated on the remote controller.
• Set the SECOND CODE NO. shown in the Table 6 accord-
ing to the amount of dust or pollution in the room.
• Though the indoor unit is equipped with the long life lter, it
is necessary to periodically clean the lter to avoid clogging
of the lter. Please also explain the set time to the customer.
• The periodic lter-cleaning time can be shortened depend-
ing on the environment.
Table 6
Contamination
Hours until
indication
MODE
NO.
FIRST
CODE NO.
SECOND
CODE
NO.
Normal
Approx.
2,500 hrs
10 (20)
0
01
More
contaminated
Approx.
1,250 hrs
02
With indication
3
01
No indication* 02
*
Use
No indication
setting when cleaning indication is not neces-
sary such as the case of periodical clean ing being carried out.
9-6 SETTING THERMOSTAT DIFFERENTIAL
• For setting when remote sensor is used, change over ther-
mostat differential.
Table 7
Differential
MODE
NO.
FIRST
CODE NO.
SECOND
CODE
NO.
1.8°F (1°C)
12 (22) 2
01
0.9°F (0.5°C) 02
9-7 SETTING AIR DISCHARGE DIRECTION
• When changing air discharge setting (2-way or 3-way air
discharge), set the SECOND CODE NO. as shown in the
Table 8.
Table 8
Setting
MODE
NO.
FIRST
CODE NO.
SECOND
CODE
NO.
4-way air
discharge
13 (23) 1
01
3-way air
discharge
02
2-way air
discharge
03
9-8 DRY MODE SETTING
Table 9
Setting
MODE
NO.
FIRST
CODE NO.
SECOND
CODE
NO.
Dry mode set
temperature
Room
temperature
11 (21) 12
01
Same as cool-
ing mode set
temperature
02
10. TEST OPERATION
•
After cleaning the indoor unit inside, carry out test operation
according to installation manual attached to the outdoor unit.
• When the remote controller operation lamp ashes, it
shows that something is abnormal.
Check the malfunction codes on the remote controller.
The relation between the malfunction codes and malfunc-
tion details is described in the operation manual attached to
the outdoor unit.
Particularly, if the indication is one of those shown in the
Table 10, it may be an error in the electrical wiring or the
power supply is disconnected. Therefore, recheck wiring.
Table 10
Remote controller
indication
Details
Though the central-
ized control is not
carried out, the
indicating the central
control turns on.
• The terminals (T1 · T2) for FORCED OFF
on the indoor unit trans mission terminal
block is short circuited.
[U4] displays.
[UH] displays.
• The power supply to the outdoor unit is not
made.
• The power supply work to the outdoor unit
is not carried out.
• The transmission wiring and the remote
controller wiring and FORCED OFF wiring
are connected incorrectly.
• The transmission wiring is disconnected.
No indication
• The power supply to the indoor unit is not
made.
• The power supply work to the indoor unit is
not carried out.
• The remote controller wiring and the trans-
mission wiring and FORCED OFF wiring
are connected incorrectly.
• The remote controller wiring is discon-
nected.
• At test operation, install the decoration panel and check the
actuation of the horizontal blade.
01_EN_3P693452-2.indd 15 2022/08/09 16:00:15
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