English
16
Table 5
* Use “No indication” setting when cleaning indication is not
necessary such as the case of periodical cleaning being
carried out.
<Test operation>
•
After cleaning the indoor unit inside and the suction grille,
carry out test run 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 abnormal details is described in the operation
manual attached to the outdoor unit. Particularly, if the indi-
cation is one of those shown in the Table 6, it may be an error
in the electrical wiring or the power supply is disconnected.
Therefore, recheck Table 6.
Table 6
CAUTION
After test operation is completed, check the items mentioned in
the clause 2 “
2. Items to be checked at delivery
” on page 3.
If the interior finish work is not completed when the test
operation is finished, for protection of the system, ask the
customer not operate the indoor unit until the interior finish work
is completed.
If the system 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 lid, the
air filter and suction panel are attached.
In addition, explain the power supply status (power supply ON/
OFF) to the customer.
11. WIRING DIAGRAM
(Refer to Fig. 36)
Contamination
Filter hours
(long life type)
Mode No.
FIRST
CODE No.
SECOND
CODE No.
Normal
Approx.
2500 hrs
10 (20)
0
01
More contami-
nated
Approx.
1250 hrs
02
With indication
3
01
No indication*
02
Remote controller
indication
Details
Though the central-
ized control is not
carried out, the
lamp “
”
turns on.
• The terminals (T1 · T2) for FORCED OFF
on the indoor unit transmission terminal
block is short circuited.
“U4” turns on
“UH” turns on
• 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 wrongly.
• 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 wrongly.
• The remote controller wiring is discon-
nected.
1
(NOTE 6)
2
(NOTE 3)
3
WIRELESS REMOTE CON-
TROLLER
(RECEIVER/DISPLAY UNIT)
(OPTIONAL ACCESSORY)
4
INPUT FROM OUTSIDE
(NOTE 7)
5
TRANSMISSION WIRING
(NOTE 2)
CENTRAL REMOTE CON-
TROLLER
6
(NOTE 4)
7
WIRED REMOTE CON-
TROLLER (OPTIONAL
ACCESSORY)
8
CONTROL BOX
9
CLASS
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