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37
CAUTION
After test operation is completed, check the items mentioned in the clause 2 “
2. Items to be checked at
delivery
” on page 5.
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 lid is closed.
In addition, explain the power supply status (power supply ON/OFF) to the customer.
PJ
Capacity setting failure (Outdoor unit)
Capacity setting adapter or capacity data
error, or disconnection of the capacity setting
adapter, failure to connect the adapter, or the
capacity is not set to the data-retention IC.
U0
Suction piping temperature abnormal
(Outdoor unit)
The refrigerant may be insufficient.
Abnormal stop is applied depending on the
model or condition.
U1
Reverse phase (Outdoor unit)
Reverse two phase of L1, L2 and L3 leads.
U2
Power voltage malfunction (Outdoor
unit)
The inverter open-phase or main circuit
condenser may be malfunctioning.
Abnormal stop is applied depending on the
model or condition.
U4
UF
Transmission error (between indoor
and outdoor units)
Wiring error between indoor and outdoor unit. Or
Indoor and outdoor Printed Circuit Board failure.
U5
Transmission error (between indoor
and remote controller units)
Transmission between indoor unit and remote
controller is not performed properly.
U8
Transmission error between main and
sub remote controllers (sub remote
controller malfunction)
UA
Field setting error
System setting error of the simultaneous on/
off multi-split type.
UE
Transmission error (between indoor
unit and centralized remote controller)
UC
Remote controller address setting error
UJ
Accessory equipment transmission
error
Abnormal stop is applied depending on the
model or condition.
4PEN469441-1.book Page 37 Tuesday, March 21, 2017 1:49 PM