Haier HSU-18,22HVA103/R2(DB) Service Manual page 25

cooling mode. If the unit is under the heating mode currently, when the temperature is enough for the
compressor to stop, the compressor stops. After 15 minutes the compressor will detect the
temperature. If Tr＞Ts-3℃,then the unit will start the cooling mode, otherwise it will remain in the
heating mode.
There is timing function and sleeping function with this mode. If the unit is under the cooling mode
then it will start the cooling sleep mode. If the unit is under the heating mode then it will start the
heating sleep mode.
The wind panels may sway or stay at a position. The wind speed could be low, medium, high or
automatic.
5．1．3 Special functions
5．1．3．1 Powerful running
Powerful running for 15 minutes
The running stops or ends the powerful running after 15 minutes
The mode switch ends the powerful running
Enter into the silent mode, normal running mode or timed switching on mode to end the powerful
running
When in automatic mode, there are powerful and silent functions for your choice. When the main unit
is in cooling mode, it operates with powerful cooling or silent cooling. When the main unit is in heating
mode, it operates with powerful heating or silent heating. When the main unit is in wind-sending mode,
there are no powerful or silent modes.
There is no powerful mode for wind-sending and moisture removing
Powerful heating：
Change the set temperature. With temperature adjusting function
The wind volume is the automatic medium
When in frost removing mode, the outdoor unit does not accept the communication signal for powerful
running
After 15 minutes of powerful running, the compressor can not be off within 10 minutes
Powerful cooling：
Change the set temperature. With temperature adjusting function
The wind volume is the automatic strong
After the compressor starts, there will be no low-intense running protection within 3 minutes
5．1．3．2 Silent running
Send the silent running signal to the outdoor unit
Under the Silent hearing mode,The wind volume is SSLO after the compressor is on,The wind volume
will be kept SSLO within 20 seconds after the compressor stops and then changes to weak
Under the Silent cooling mode the wind volume is SSLO
There is no silent mode for moisture removing and wind-sending.
5．1．3．3 Air cleaning
I f the fan motor starts working after receiving the remote-control order, the aion generator starts
working and sends out ions.
The ion generator stops as the fan motor stops.
When the ion generator is OFF and the air cleaning function is on, the fan motor starts running and
the ion generator starts working again.
18 2 HVA103/R2(DB)
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