Mitsubishi Electronics MS-AWA, MUZ-ANA Dry Operation, Heat, Operation Msz, Thermostat control

Difference between room temperature and set temper- ature during operation

2-2. DRY ( ) OPERATION

Set temperature is as shown on the right chart.

The system for dry operation uses the same refrigerant circuit as the cooling circuit.

The compressor and the indoor fan are controlled by the room tem- perature.

By such controls, indoor flow amounts will be reduced in order to lower humidity without much room temperature decrease.

	ºF	Set temperature and
		initial room temperature in dry mode
	95
	86
temperature	77
	68
Set
	59
	50		59	68	77	86	95 ºF
	50
			Initial room temperature

	Difference between room
1. Thermostat control	temperature and set temper-
Thermostat is ON or OFF by difference between room temperature and set temperature.	ature during operation

Initial temperature difference	Thermostat	Set temperature
Room temperature minus set temperature : -1.8 degrees or more·······································ON
Room temperature minus set temperature : less than -1.8 degrees······································OFF
		-1.8deg. -1.3deg.

2.Indoor fan speed control

Indoor fan operates at the set speed by FAN SPEED CONTROL button. When thermostat OFF (compressor OFF) fan speed becomes Very Low.

In AUTO the fan speed is as follows.

Initial temperature difference Fan speed

Room temperature minus set temperature : 3.1 degrees or more ·······························High

Room temperature minus set temperature : Between 1.8 and 3.1 degrees ···················Med.

Room temperature minus set temperature : less than 1.8 degrees ····························Low

3.Coil frost prevention

Coil frost prevention is as same as COOL mode. (2-1.3.)

Difference between room temperature and set temper- ature during operation ( T)

4.5deg.

1.8deg. 3.1deg.

The indoor fan maintains the actual speed of the moment. However ,when coil frost prevention works while the compressor is not operating it’s speed becomes the set speed.

4.Low outside temperature operation

Low outside temperature operation is as same as COOL mode. (2-1.4.)

2-3. HEAT (

) OPERATION (MSZ)

1. Thermostat control
Thermostat is ON or OFF by difference between room temperature and set temperature.
Initial temperature difference	Thermostat Set temperature
Room temperature minus set temperature : less than 3.6 degrees····································ON
Room temperature minus set temperature : 3.6 degrees or more······································OFF
		3deg.	3.6deg.

2.Indoor fan speed control

(1)Indoor fan operates at the set speed by FAN SPEED CONTROL button. In Auto the fan speed is as follows.

Initial temperature difference Fan speed

Set temperature minus room temperature: 3.6 degrees or more······································ High

Set temperature minus room temperature: Between 0.4 and 3.6 degrees ···················· Med.

Set temperature minus room temperature: less than 0.4 degrees···································· Low

Difference between room temperature and set temper- ature during operation

3.6deg. 7.2deg. 0.4deg. 3deg.

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