AUKS AFC-1000CF/4, Technical Manual

Page: 45 / 60

Service Manual
45
When TA - TS≤-2
℃
,the indoor fan will close. The logic control map is as shown in the figure.
The low speed operation of the indoor fan will be activated 40 seconds after 5 minutes, if TA - TS≤-2
℃
is still satisfied ,the indoor fan will remain stopped for 5minutes before reactivate low speed operation for
40 seconds; otherwise, the related cooling operation will be controlled according to indoor temperature
（ TA ） and set temperature （ TS ） .
There is a 2 minutes delay from high speed to low speed to avoid speed fluctuation.
1 -1 T
set
-2
Setting fan speed
Auto fan speed
High speed
Low speed Fan stops
Cooling electric valve closes Cooling electric valve opens
Middle speed
Fan stops Low speed
Cooling electric valve closes
Setting speed
Cooling electric valve opens
6.When cooling is forced open, the cooling valve and indoor fan will open with the electric heater remain
off. The logic control map is as shown in the following figure.
ON
Motor of indoor unit
Electric heater
OFF
OFF
OFF
OFF
Cooling electric valve
ON
7.When cooling is forced open, the cooling electric valve and indoor fan will close immediately. The logic
control map is as shown in the following figure.