Haier N Series Service Manual page 22

The calculation of the actual output frequency: when there is no healthy airflow: F =F-ED-* P K
When the healthy airflow has been set: F =F-ED-* P K airflow speed
When refrigerating, it is needed to satisfy
When heating, it is needed to satisfy
7.1.4 The outdoor fan control (exchange fan)
When the fan is changed among every airflow speed (including stop blowing), in order to avoid
the airflow speed from skipping frequently, it must be kept under each mode for over 30 seconds,
and then it can be changed to another mode (when refrigerating, the time is changed to 15
seconds).
7.1.4.1 The ou tdoor fan control when refrigerating or dehumidifying
After the compressor is started for 5 seconds, the outdoor fan is started at the medium speed at
first, after 30 seconds,it begins to control the airflow speed according to the temperature
conditions of the outdoor environment.
The temperature of the
outdoor air Ta
Ta 30
26 Ta<30
24 Ta<26
23 Ta<24
5 Ta<23
Ta<5
7.1.4.2 The ou tdoor fan control when heating
The temperature of the outdoor
air Ta
Ta 22
19 Ta<22
16 Ta<22
14 Ta<16
Ta<14
7.1.5 The control of the outdoor electronic expansion valve
When starting the compressor: the opening size of the valve must be guaranteed to have entered
into the standard opening size, and then the compressor can be started.
When refrigeration is in vain (the machine is shut down or is in the state of retrograde operation),
the opening size of the expansion valve of the indoor unit is 5 steps;
When heating is in vain, the opening size of the expansion valve of the indoor unit is 55 steps;
IN r< F<
The temperature of the outdoor
coil Te
15 Te
15 >Te
Airflow speed
Low
Keeping the speed
Medium
Keeping the speed
High
20
IN < F<
r
Airflow speed
High
Keeping the speed
Medium
Keeping the speed
Low
Low
Stop
Domestic air conditioner
Functions and control
K healthy airflow