19
English
Table 9
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
10-4 SETTING FILTER SIGN
•
A message to inform the air filter cleaning time will be indi
-
cated on the remote controller.
•
Set the SECOND CODE No. shown in the Table 10 accord-
ing to the amount of dust or pollution in the room.
•
The periodical filter cleaning time can be shortened de
-
pending on the environment.
Table 10
Dust level
Hours until
indication
Mode
No.
FIRST
CODE No.
SECOND
CODE No.
Normal
Approx.
2500 hrs
10 (20)
0
01
More
contaminated
Approx.
1250 hrs
02
With indication
3
01
No indication*
02
* Use “No indication” setting when cleaning indication is not
necessary such as the case of periodical clean ing being
carried out.
10-5 SETTING THERMOSTAT DIFFERENTIAL
•
For setting when remote sensor is used, change over ther-
mostat differential.
Table 11
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
10-6 SETTING DRY MODE SET TEMPERATURE
•
For changing dry mode set temperature.
Table 12
Setting
Mode
No.
FIRST
CODE No.
SECOND
CODE No.
Room temperature
11 (21)
12
01
Same as cooling mode set
temperature
02
11. 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 flashes, it
shows that something is abnormal.
Check the malfunction codes on the remote controller.
The relation between the malfunction codes and malfunction de-
tails is described in the operation manual attached to the outdoor
unit.
Particularly, if the indication is one of those shown in the
Table 13, it may be an error in the electrical wiring or the
power supply is disconnected. Therefore, recheck wiring.
Table 13
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” turns on
“UH” turns on
•
The power supply to the outdoor unit is not
connected.
•
The power supply wiring to the outdoor unit
is not carried out.
•
The transmission wiring and the remote
controller wiring and FORCED OFF wiring
are connected wrongly.
•
The transmission wiring is disconnected.
No indication
•
The power supply to the indoor unit is not
connected.
•
The power supply wiring to the indoor unit
is not carried out.
•
The remote controller wiring and the trans-
mission wiring and FORCED OFF wiring
are connected wrongly.
•
The remote controller wiring is discon-
nected.
CAUTION
After test operation is completed, check the items men-
tioned in
2. BEFORE INSTALLATION (2) Items to be
checked at delivery
on page 4.
If the interior finish work is not completed when the test
operation is finished, for protection of the air con ditioner,
ask the customer not operate the air conditioner until the
interior finish work is completed.
If the air conditioner is operated, the inside of the indoor
units may be polluted by substances generated from the
coating and adhesives used for the interior finish work
and cause water splash and leakage.
To the operator carrying out test operation
After test operation is completed, before delivering the
air conditioner to the customer, confirm that the control
box cover, the air filter and suction grille are attached.
In addition, explain the power supply status (power sup
-
ply ON/OFF) to the customer.
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