English 26
<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 mal-
function 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 indication 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 deliv-
ery” on page 4.
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)
Remote controller indication Details
Though the centralized control is
not carried out, the lamp
“ ” 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 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 disconnected.
1(NOTE 6) 2(NOTE 3)
3
WIRELESS REMOTE CONTROLLER
(RECEIVER/DISPLAY UNIT)
(OPTIONAL ACCESSORY)
4 INPUT FROM OUTSIDE (NOTE 7)
5
TRANSMISSION WIRING (NOTE 2)
CENTRAL REMOTE CONTROLLER
6(NOTE 4)
7
WIRED REMOTE CONTROLLER
(OPTIONAL ACCESSORY)
8 CONTROL BOX
01_EN_3P249378-8N.fm Page 26 Saturday, September 29, 2012 3:02 PM
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