6
6
.
.
C
C
O
O
N
N
T
T
R
R
O
O
L
L
M
M
O
O
D
D
E
E
When being auto, the fan speed is determined in the cooling mode (with
the temperature setting of 24
0
C in default).
The high, medium and low fan speeds are same with that in the cooling
mode.
6-3-11 Compressor operating state indication
When the compressor is in operation, The 3 LED indicator lights on
the control panel of the outdoor unit indicates the causes of the
restriction on the 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 over current
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.
6-3-12 Special notes
6-3-12-1 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