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MFZ MICROPROCESSOR CONTROL
3. Coil frost prevention
Refer to MXZ MICROPROCESSOR CONTROL, COOL OPERATION (3-8.2.).
2. Indoor fan speed control
Indoor fan operates continuously at the set speed by FAN SPEED CONTROL button regardless of the thermostat's OFF-
ON. In AUTO the fan speed is as follows.
1. Thermostat control
Refer to MXZ MICROPROCESSOR CONTROL, COOL OPERATION (3-8.1.).
4-1. COOL (
) OPERATION
4-2. DRY (
) OPERATION
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.
95
86
77
68
59
50
°F
50 59 68 77 86 95
Set temperature
Initial room temperature
Set temperature and
initial room temperature in dry mode
°F
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.
3. Coil frost prevention
Coil frost prevention is as same as COOL mode. (4-1.3.)
The indoor fan maintains the actual speed of the moment.
1. Thermostat control
Refer to MXZ MICROPROCESSOR CONTROL, DRY OPERATION (3-9.1.).
High 3.15°F(1.75°C) or more
Med. between 1.8 and 3.15°F
Low
less than 1.8°F(1°C)
3.15°F
(1.75°C)
5.4°F
(3°C)
1.8°F
(1°C)
Fan speed
Room temperature minus
set temperature (Initial)
Room temperature minus
set temperature (During operation)
High 3.15°F(1.75°C) or more
Med. between 1.8 and 3.15°F
Low
less than 1.8°F(1°C)
3.15°F
(1.75°C)
4.5°F
(2.5°C)
1.8°F
(1°C)
Fan speed
Room temperature minus
set temperature (Initial)
Room temperature minus
set temperature (During operation)