20
the speed can be selected as high, medium, low
and auto.
The indoor fan is controlled as below:
Setting fan
speed
Actual fan speed
H+(H+=H+G)
A
H（=H）
B
C
M+(M+=M+Z)
D
M(M=M)
E
F
L+(L+=L+D)
G
L(L=L)
H
I
T1-Td
℃
(°F)
L
L-(L-=L-D)
H
H-（H-=H-G)
M
M-(M-=M-Z)
The auto fan acts as below rules:
a
b
c
d
T1
e
8.4.2.4 Condenser temperature protection
TP3+5
T3
Resume
Off
Decrease
TP3
TP3-3
Hold
---TP3<T3< TP3+5, the compressor frequency will
decrease to the lower level until to F1 and then
runs at F1.If TP3-3<T3< TP3, the compressor will
keep running at the current frequency.
---T3< TP3-3, the compressor will not limit the
frequency and resume to the former frequency.
---T3> TP3+5 for 5 seconds, the compressor will
stop until T3< TP3-3.
8.4.2.5 Evaporator temperature protection
When Evaporator temperature temp.is less than
setting value, the compressor will stop.
8.4.3 Heating Mode
8.4.3.1 Compressor running rules
When T1-Ts>-ΔT, the compressor will stop,
when T1-T
S
<ΔT-1.5
，
the compressor will be on.
ΔT is the programmed parameter of temperature
compensation.
When the AC run in mute mode, the compressor
will run with low frequency.
When the current is more than setting value, the
current protection function will be activated and
the compressor will stop.
8.4.3.2 Outdoor fan running rules
The outdoor unit will be run at different fan speed
according to T4.
For different outdoor units, the fan speeds are
different.
T4
A+
A
B
C
D
E
8.4.3.3 Indoor fan running rules
When the compressor is on, the indoor fan can be
set to high/med/low/auto. And the anti-cold wind
function has the priority.
The indoor fan is controlled as below:
Setting fan
speed
Actual fan speed
H+(H+=H+G)
A
H（=H）
B
C
M+(M+=M+Z)
D
M(M=M)
E
F
L+(L+=L+D)
G
L(L=L)
H
I
T1-Td
℃
(°F)
L
L-(L-=L-D)
H
H-（H-=H-G)
M
M-(M-=M-Z)
Auto fan action in heating mode:
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