Mitsubishi Electric MS-A08ND Service Technical Manual Download Page 1

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SERVICE TECHNICAL GUIDE

Wireless type

Models

MS-A08ND

(WH)

· MU-A08ND

MS-A10ND

(WH)

· MU-A10ND

MS-A12ND

(WH)

· MU-A12ND

MS-A15ND

(WH)

· MU-A15ND

No. OBT10

SPLIT-TYPE, AIR CONDITIONERS

CONTENTS

MICROPROCESSOR CONTROL

1.“I FEEL CONTROL” OPERATION ·································2

2. COOL OPERATION ·······················································5

3. DRY OPERATION ··························································5

4. FAN OPERATION ··························································5

5. FAN MOTOR CONTROL ···············································5

6. AUTO VANE OPERATION·············································5

7. TIMER OPERATION ······················································7

8. EMERGENCY / TEST OPERATION ······························7

OBT10.qxp 05.5.11 11:26 AM Page 1

Summary of Contents for MS-A08ND

Page 1: ... A12ND MS A15ND WH MU A15ND C1 C1 C1 C1 C1 C1 C1 C1 No OBT10 SPLIT TYPE AIR CONDITIONERS CONTENTS MICROPROCESSOR CONTROL 1 I FEEL CONTROL OPERATION 2 2 COOL OPERATION 5 3 DRY OPERATION 5 4 FAN OPERATION 5 5 FAN MOTOR CONTROL 5 6 AUTO VANE OPERATION 5 7 TIMER OPERATION 7 8 EMERGENCY TEST OPERATION 7 TM ...

Page 2: ...peration state INDOOR UNIT DISPLAY SECTION The following indication applies regardless of shape of the indicator Once the mode is fixed the mode does not change by room temperature afterwards Under ON TIMER operation the mode is deter mined according to the room temperature at set time the operation starts When the system is stopped by the remote controller and restarted within 2 hours in I FEEL C...

Page 3: ...room temperature the frequency of pressing TOO COOL or TOO WARM button and the user s preference to heat or cold 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 1 2 degrees To lower the set temperature 1 2 degrees TOO COOL TOO WARM 1 deg 1 7 deg 3 deg Difference between room temperat...

Page 4: ...Operation time chart Example Thermostat Indoor fan Outdoor fan Compressor ON 8 min 1 min 3 min 4 min ON OFF OFF OFF OFF OFF OFF OFF OFF ON ON ON ON ON ON 4 Coil frost prevention The operation is the same as coil frost prevention during COOL mode of I FEEL CONTROL Indoor fan operates at the set speed and the compressor stops for 5 minutes because coil frost prevention has priority When coil frost p...

Page 5: ... work The other operations are same as DRY mode of I FEEL CONTROL 4 DRY operation will not work when the room temperature is 13 C or below 4 FAN OPERATION 1 Press OPERATE STOP ON OFF button OPERATION INDICATOR lamp of the indoor unit turns on with a beep tone 2 Select FAN mode with OPERATION SELECT button 3 Select the desired fan speed When AUTO it becomes Low Only indoor fan operates Outdoor unit...

Page 6: ... is pressed in COOL mode set temperature is automatically set 2 higher than that in COOL mode Also the horizontal vane swings in a cycle which fits the temperature of indoor heat exchanger RT12 SWING operation makes you feel cooler than set temperature So even though the set temperature is higher than that in COOL mode the air conditioner can keep comfort As a result energy can be saved ECONO COOL...

Page 7: ... can not be set at the same time TIME SELECT Example 1 Setting to stop the air conditioner 3 hours later 1 Press button to select OFF TIMER 2 Press button to set the 3h TIME SELECT 3 h 7 h Example 2 Setting to operate the air conditioner 7 hours later 1 Press button to select ON TIMER 2 Press button to set the 7h TIME SELECT 2 Cancel Press button until OFF TIMER and ON TIMER are not displayed SELE...

Page 8: ...2 3 MARUNOUCHI CHIYODA KU TOKYO100 8310 JAPAN C C Copyright 2005 MITSUBISHI ELECTRIC ENGINEERING CO LTD Distributed in May 2005 No OBT10 7 Made in Japan New publication effective May 2005 Specifications subject to change without notice TM ...

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