2. dry operation (dehumidification), 3. automatic switching between cooling and heating – Sanyo CH1852 User Manual

Page 53

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8-2. Dry Operation (Dehumidification)

Dry operation uses the ability of the cooling cycle to remove moisture from the air, but by running at low level to

dehumidify without greatly reducing the room temperature. The air conditioner repeats the cycle of turning ON

and OFF automatically as shown in the chart below according to the room temperature.

Intermittent ventilation occurs by switching the indoor fan speed between L

LL.

Dry operation does not occur when the room temperature is under 15°C, which is the monitor zone.

When the compressor stops, the indoor fan stops as well.

8-3. Automatic Switching between Cooling and Heating

When AUTO mode is selected, the microprocessor calculates the difference between the set temperature and

the room temperature, and automatically switches to COOLING or HEATING mode to maintain the desired tem-

perature.

Room temp.

³

Set temp.

COOL

Room temp. < Set temp.

HEAT

This means that if the room temperature is higher than or equal to the set temperature, COOLING operation

begins. If the room temperature is lower than the set temperature, HEATING operation begins.

NOTE

Room temp.

Cooling operation

T + 4

¡

F

Set temp. T

¡

F

T – 2

¡

F

Monitor zone

Both the indoor and outdoor units stop.

Room temp. 59

¡

F

Dry A zone

Compressor :

FMI (indoor fan) :

Continuous operation

L (low speed) / LL (very low speed) intermittent ventilation
only while the compressor is ON.

Dry B zone

Compressor :

FMI (indoor fan) :

Intermittent operation (ON for 3 minutes and OFF for 9 minutes)

L (low speed) / LL (very low speed) intermittent ventilation
only while the compressor is ON.

000-111

SM

(18-68)

00.3.17

11:49

AM

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