Hisense ADM-24UX4SGKA Service Manual page 23

6 . C O N T R O L M O
6 . C O N T R O L M O
line controller.
4.3.2 Indoor fan
The fan speed is set at the high, medium or low fan speed, it operates at a preset
speed (in the cold air prevention, it is forced to run at the ultra-low flowrate or stop).
When the fan speed is set in the auto-run, the fan speed setting is made according to
the room temperature differences (except for the cold air prevention).
T
T T
room ¡Ü
set
0
2 C ¡Ü T
T
room
4.3.3 Cold air prevention
In the heating-run, to prevent the indoor fan from blowing cold air, the indoor fan
speed is controlled as illustrated below:
Indoor fan
speed
Temperature drop
Fan motor
stop
10
When the indoor coils temperature rises above 28
ultra-low speed; when above 35
cold air protection. When the indoor coils temperature drops below 10
fan will stop. The cold air prevention is work in 4 minutes,it will cancelled after 4
minutes.
4.3.4 Residual heat blowing off
When the compressor is turned off in the heating run, the indoor fan does not stop at
once, until the indoor evaporator temperature is below 30
latest.
4.3.5 Outdoor fan
The outdoor fan speeds are divided into three levels which can be changed over
according to outdoor ambient temperatures.
4.3.6 4-way valve
State: It is electrified in heating.
D E L
D E L
-T
room set
<2
0
OR T -T C
room set
<4
0
-T C
room set
0
-T 4 C
set ¡Ý
Setting fan speed
Soft fan speed
28 35
0
C at a preset speed or at the auto-speed to end the
A D M - 2
A D M - 2
Indoor fan speed
Low
Medium
High
Temperature rise
Indoor coil
temperature
£¨ ¡æ £©
0
C, the indoor fan runs at the
0
C, but for 30 seconds at the
20
4 U X 4 S G K A
4 U X 4 S G K A
0
C, the indoor