Haier HSU18VH7 manual Introduction to electrical control functions

Page 7

Air conditioner

Edition: 10070808

 

 

 

3.2 . Introduction to electrical control functions

Including brief introduction to air conditioners of series models and electric control function.

Brief introduction to electric control function

3.2.1 Automatic running (applicable to fan-coil model)

When the running mode is turned to automation after starting the system, the system will first determine the running mode according to the current room temperature and then will run according to the determined mode. Tr in the following selection conditions means room temperature, Ts means setting temperature, Tp means temperature of indoor coil

pipe

 

 

a. Tr23

running refrigerating mode

Ts=26

b. Tr<23

running heating mode

Ts=23

After turning to the automation mode, the running mode can be switched between refrigerating mode, fan mode and heating mode according to the change of the indoor ambient temperature. But the automatic conversion between refrigerating mode and heating mode must be conducted after 15 minutes.

3.2.2Indoor temperature control

 

 

Compressor OFF

 

 

Heating

 

 

 

Compressor ON

-1

+1

Compressor OFF

 

 

 

 

Refrigerating

 

 

 

Setting temperature

-1

+1

 

 

 

Setting temperature

Compressor ON

3.2.3 Dehumidification running

The compressor, outdoor fan and indoor fan will run as per the following working pattern so as to realize the refrigerating running of dehumidification:

3.2.3.1 Tr> Ts+2, compressor, outdoor fan run continuously, indoor fan runs as per setting wind speed (State 1);

3.2.3.2 Ts+2℃≥ TrTs, compressor, outdoor fan run intermittently with 10 minutes ON, 6 minutes OFF. (Compressor and outdoor fan are synchronous) indoor fan runs in fixed lower wind speed, and will cease at the stand-by time of 3 minutes (State 2)

3.2.3.3 Tr <Ts, compressor, outdoor fan ceases, indoor fan runs in lower wind speed. (State 3)

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Contents Domestic Air conditioner Contents General information HSU18VH7 ~43 Basic Function Introduction to electrical control functions State1 State2 State3 Ts-1 Ts+2 Ts+3 OFF Ts+2 Ts+1 1 hours 6hours Hour Ts SleepOFF thour PCB 10070808 Table for Wrong Codes 10070808 10070808 10070808 Air conditioner Indoor unit 10070808 10070808 10070808 Wiring Diagram Indoor Unit Outdoor Unit RKΩ RKΩ HSU18VH7 Circuit Diagram