6
6
.
.
C
C
O
O
N
N
T
T
R
R
O
O
L
L
M
M
O
O
D
D
E
E
L
L
A
A
S
S
-
-
0
0
9
9
U
U
R
R
4
4
S
S
G
G
N
N
PQ
compressor’s current operating frequency.
Symbols for indicator light::
★
: ON
Ο
: flashing
×
: OFF
LED1
LED2
LED3
The cause of the restriction on the compressor’s current operating
frequency
1
Ο
Ο
Ο
Normal frequency ascent and descent with no
restriction on the frequency
2
×
×
★
Frequency descent or restriction on frequency
ascent caused by overcurrent
3
×
★
★
Frequency descent or restriction on frequency
ascent caused by anti-freeze in cooling or overload
control in heating
4
★
×
★
Frequency descent or restriction on frequency
ascent caused by too high compressor discharge
temperature
5
×
★
×
Restriction on maximum operation operating
frequency caused by too low voltage on the supply
circuit
6
★
★
★
Operating at a fixed frequency (when in a capacity
measurement or forced operation at a fixed
frequency.)
8
★
×
×
Communication frequency drops.
3.12 Special notes
3.12.1 The outdoor unit of this model is electrified by the indoor unit control. After
the system starts to operate, the indoor unit supplies the outdoor unit (except for
the ventilation mode). If the EEPROM data is read correctly after turning on the
power, the indoor unit’s beeper rings one time, or if it is not the case the beeper will
ring two times and the system cannot be started. Normally, when the indoor unit
receives a control signal from the remote controller and emergency button, the
system will be started and the beeper will ring two times, and in other cases, the
beeper will ring one time.
3.12.2 This model can achieve the power interruption restoration function by the
selection of the EEPROM data. The power interruption restoration is applied only
for the basic functions (turning ON and OFF, setting temperatures, modes, fan
speeds and flap’s position) and not for other special functions such as sleep,
timing and power-saving run.
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