Vermont Casting MSY-D36NA, MSZ-D36NA Auto Change Over ··· Auto Mode Operation MSZ, Fuzzy control

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

Model

Initial room temperature

Initial set temperature

COOL mode of "I FEEL

79 °F (26 °C) or more

75°F (24 °C)

 

 

 

1

CONTROL"

77 °F (25 °C) to 79 °F (26 °C)

Initial room temperature minus 4 °F (2 °C)

 

 

 

 

 

 

 

DRY mode of "I FEEL

more than 55 °F (13 °C),

Initial room temperature minus 4 °F (2 °C)

CONTROL"

less than 77 °F (25 °C)

 

 

1 When the system is restarted with the remote controller, the system operates with the previous set temperature regardless 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.

··· To raise the set temperature 2 ~ 4 °F (1 ~ 2 °C)

··· To lower the set temperature 2 ~ 4 °F (1 ~ 2 °C)

8-6. 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 (2 °C) below the set temperature.

HEAT mode changes to COOL mode when about 15 minutes have passed with the room temperature 4 °F (2 °C) above the set temperature.

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Contents MSZ-D30NA MSZ-D36NA MSY-D30NA MSY-D36NA Page Technical Changes Accessories Part Names and FunctionsSpecification Operating Range Outlet AIR Speed and Coverage RangeOutlines and Dimensions MSZ-D36NA MSY-D30NA MSY-D36NAWiring Diagram Refrigerant System Diagram UnitinchHow to modify the remote controller P.C. board Service FunctionsTimer Short Mode P.C. Board Modification for Individual OperationAuto Restart Function OperationOperation Indicator lamp Microprocessor ControlFAN Operation MSY Cool OperationHeat Operation MSZ Feel Control Operation MSYFuzzy control Auto Change Over ··· Auto Mode Operation MSZMode selection Auto Vane Operation Vertical vane 3 4 Swing 5Program Timer EMERGENCY/TEST Operation Minute Time Delay OperationChanging Temperature Indication F /C Troubleshooting procedure TroubleshootingBefore troubleshooting, check the following How to replace batteriesFailure Mode Recall Function OFFIndoor unit failure mode table Eration IndicaInstruction of Troubleshooting StartTroubleshooting Check Table Lighted Blinking Not lightedTrouble Criterion of Main Parts Troubleshooting Flow Check of indoor fan motorCheck of remote controller and receiver P.C. board Indoor electronic control P.C. board How to check miswiring and serial signal error Electromagnetic noise enters into TV sets or radios SW P.C. board Test Point Diagram and VoltagePower monitor receiver P.C. board Removing the panel Disassembly InstructionsBoard, the power monitor receiver P.C. board and the SW Removing the electrical box, the electronic control P.CRemoving the horizontal vane motor Removing the nozzle assemblyRemoving the vertical vane motor Removing the line flow fan and the indoor fan motor Page Page Made in Japan New publication, effective FebDistributed in Feb . No. OBH501