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English
20
< 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 malfunction
details is described in the operation manual attached to the
outdoor unit.
Particularly, if the indication is one of those shown in the
Table 7, it may be an error in the electrical wiring or the power
supply is disconnected. Therefore, recheck wiring.
Table 7
CAUTION
After test operation is completed, check the items men-
tioned 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 air conditioner,
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 lid
is closed.
In addition, explain the power supply status (power supply
ON/OFF) to the customer.
11. WIRING DIAGRAM
(Refer to Fig. 48)
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
transmission wiring and FORCED OFF
wiring are connected wrongly.
• The remote controller wiring is discon-
nected.
1
CONTROL BOX
2
(NOTE 5)
3
INDOOR UNIT
4
WIRELESS REMOTE
CONTROLLER
(RECEIVER/DISPLAY
UNIT) (OPTIONAL
ACCESSORY)
5
INPUT FROM OUTSIDE
(NOTE 6)
6
TRANSMISSON WIR-
ING (NOTE 2)
CENTRAL REMOTE
CONTROLLER
7
WIRED REMOTE CON-
TROLLER
(OPTIONAL ACCES-
SORY) (NOTE 3)
01_EN_3P177351-7S.fm Page 20 Thursday, March 21, 2013 10:19 PM