12
3P086154-3R
English
11. TEST OPERATION
< 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 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 4, it may be an error in the electrical wiring or the
power supply is disconnected. Therefore, recheck wiring.
Table 4
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 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.
CAUTION
After test operation is completed, check the items men-
tioned in Clause 2:
b. Items to be checked at time of
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 to 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 and the air filter are attached.
In addition, explain the power supply status (power sup
-
ply ON/OFF) to the customer.
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