Haier 2HUM18HC03/R2 - The Outdoor Fan Control (Exchange Fan)

2HUM18HC03/R2(DB)-SM Wiring diagrams
24
Domestic air conditioner
The calculation of the actual output frequency: when there is no healthy airflow: F =F-ED-*hPhK
When the healthy airflow has been set: F =F-ED-*hPhK˄airflow speed˅hK˄healthy airflow˅
When refrigerating, it is needed to satisfy ˢˉ˩INˉ< F<ˢˉ˩˝˴ˉ
When heating, it is needed to satisfy ˢˉ˩INˉr< F<ˢˉ˩˝˴ˉr
5.2.2˖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).
5.2.2.1
˖
The outdoor 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.
5.2.2.2
˖
The outdoor fan control when heating
The temperature of the outdoor
air ˄Ta˅
Airflow speed
Ta22ć
Low
19ćTa<22ć
Keeping the speed
16ćTa<22ć
Medium
14ćTa<16ć
Keeping the speed
Ta<14ć
High
5.2.3˖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;
The temperature of the
outdoor air ˄Ta ˅
The temperature of the outdoor
coil˄Te˅
Airflow speed
Ta30ćüü
High
26ćTa< 3 0 ćüü
Keeping the speed
24ćTa< 2 6 ćüü
Medium
23ćTa< 2 4 ćüü
Keeping the speed
5ćTa< 2 3ćüü
Low
Ta< 5 ć 15ćTe
Low
15ć>Te
Stop