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H2SM-(9+12)HEK03/R2

Funcitions and Control

Domestic Air Conditioner

5. Funcitions and Control

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Note: See the list of functions for the functions applicable to different models.

5.1.1 Automatic running

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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

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Tr<23°C Choose the warming mode

After turning to the automation mode, the running mode can be switched between cooling mode, fan

mode and heating mode according to the change of the indoor ambient temperature. But the automatic

conversion between cooling mode and heating mode must be conducted after 15 minutes.

5.1.2 Indoor temperature control

Temperature control range: 16°C---30°C

Temperature difference: ±1°C

Compressor can’t be controlled by temperature sensor within 2 minutes after it starts

1.Cooling mode:

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When Tr< Ts, outdoor fan motor and compressor off, and when Tr > Ts, outdoor fan motor and

compressor are working again .If Tr=Ts, the indoor fan motor , outdoor fan motor and the compressor’s

state will not change.

2.Heating mode:

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in cold blast avoidance mode, and 4°Cof compensation is added after compressor is started.

When Tr>Ts+5°C, compressor is off, and the indoor fan motor runs as in cold blast avoidance

mode.

When Tr<Ts+5°C, compressor, four-ways valve and outdoor fan motor is on, and the indoor fan

motor runs as in the mode of avoiding cold blast.

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The compressor, outdoor fan and indoor fan will run as per the following working pattern so as to realize

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

1);

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at the stand-by time of 3 minutes (State 2)

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

Haier H2SM-(9+12)HEK03/R2 User Manual

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