(4) The initial set temperature is decided by the initial room temperature.

Model

Initial room temperature

Initial set temperature

COOL mode of

79 °F or more

75°F

 

 

 

1

"I FEEL CONTROL"

77 °F to 79 °F

Initial room temperature minus 4 °F

 

 

 

 

 

 

 

DRY mode of

less than 77 °F

Initial room temperature minus 4 °F

"I FEEL CONTROL"

 

 

 

1 When the system is restarted with the remote controller, the system operates with the previous set temperature regard- less of room temperature at restart.

The set temperature is calculated by the previous set temperature.

(5)TEMPERATURE buttons

In “I FEEL CONTROL” ( ) mode, set temperature is decided by the microprocessor based on the room temperature. In addition, set temperature can be controlled by TOO WARM or TOO COOL buttons when you feel too cool or too warm. Each time the TOO WARM or TOO COOL button is pressed, the indoor unit receives the signal and emits a beep tone.

•Fuzzy control

When the TOO COOL or TOO WARM button is pressed, the microprocessor changes the set temperature, considering the room temperature, the frequency of pressing TOO COOL or TOO WARM button and the user’s preference to heat or cool. So this is called “Fuzzy control”, and works only in “I FEEL CONTROL” mode.

In DRY mode of “I FEEL CONTROL”, the set temperature doesn’t change.

TOO

COOL

…To raise the set temperature 2~4 °F

TOO

WARM

…To lower the set temperature 2~4 °F

11-6. AUTO CHANGE OVER ··· AUTO MODE OPERATION (MSZ)

Once desired temperature is set, unit operation is switched automatically between COOL and HEAT operation.

Mode selection

(1)Initial mode

When unit starts the operation with AUTO operation from off;

•If the room temperature is higher than the set temperature, operation starts in COOL mode.

•If the room temperature is equal to or lower than the set temperature, operation starts in HEAT mode.

(2)Mode change

COOL mode changes to HEAT mode when about 15 minutes have passed with the room temperature 4°F below the set temperature.

HEAT mode changes to COOL mode when about 15 minutes have passed with the room temperature 4°F above the set temperature.

NOTE:

If two or more indoor units are operating in multi system, there might be a case that the indoor unit, which is operating in (AUTO), cannot change over to the other operating mode (COOL ↔ HEAT) and becomes a state of standby.

Refer to 8-1. ”INFORMATION FOR MULTI SYSTEM AIR CONDITIONER”.

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Logitech OB450 REVISED EDITION-B, MSZ-A09NA Auto Change Over ··· Auto Mode Operation MSZ, Fuzzy control, Mode selection
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MSZ-A09NA, OB450 REVISED EDITION-B specifications

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