Mitsubishi Electronics MUY-ANA, MS-AWA manual Operational Frequency Control of Outdoor UNIT······16

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1. MS MICROPROCESSOR CONTROL ·····································3

Indoor unit models Outdoor unit models

MS-A09WA MU-A09WA

MS-A12WA MU-A12WA

1-1. COOL OPERATION···········································3

1-2. DRY OPERATION ············································3

1-3. AUTO VANE OPERATION ········································5

2. MSZ, MSY MICROPROCESSOR CONTROL ··································6

Indoor unit models

MSZ-A09NA MSZ-A12NA MSZ-A15NA MSZ-A17NA MSZ-A24NA MSY-A15NA MSY-A17NA MSY-A24NA

Outdoor unit models

MUZ-A09NA MUZ-A12NA MUZ-A15NA MUZ-A17NA MUZ-A24NA MUY-A15NA MUY-A17NA MUY-A24NA

2-1. COOL OPERATION···········································6

2-2. DRY OPERATION ···········································7

2-3. HEAT OPERATION ···········································7

2-4. AUTO CHANGE OVER ···AUTO MODE OPERATION························9

2-5. OUTDOOR FAN MOTOR CONTROL ···································10

2-6. AUTO VANE OPERATION ········································10

2-7. INVERTER SYSTEM CONTROL·····································12

2-8. OPERATIONAL FREQUENCY CONTROL OF OUTDOOR UNIT······16

2-9. EXPANSION VALVE CONTROL (LEV CONTROL) ···························17

3. MXZ MICROPROCESSOR CONTROL ·····································20

Outdoor unit models

MXZ-2A20NA

MXZ-3A30NA

3-1. INVERTER SYSTEM CONTROL ·····································20

3-2. EXPANSION VALVE CONTROL (LEV CONTROL) ····························22

3-3. OPERATIONAL FREQUENCY RANGE··································27

3-4. HEAT DEFROSTING CONTROL·····································BACK PAGE

3-5. DISCHARGE TEMPERATURE PROTECTION CONTROL ·····BACK PAGE

3-6. OUTDOOR FAN CONTROL ·······································BACK PAGE

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Contents Service Technical Guide Indoor unit models Outdoor unit models Discharge Temperature Protection Control ·····BACKOperational Frequency Control of Outdoor UNIT······16 Indoor unit modelsThermostat control Operation chart ExampleONOperation Indoor fan speed controlOFF Onon When the room temperature is under 73FOperation time chart Example Indoor fanAuto Vane Operation Horizontal vaneDifference between room Coil frost prevention Temperature controlLow outside temperature operation Operation MSZ Coil frost prevention is as same as Cool modeLow outside temperature operation is as same as Cool mode Overload starting Cold air prevention controlMSZ-A09/12/15/17 DefrostingAuto Change Over ···AUTO Mode Operation MSZ Mode selectionHeat MUZ Outdoor FAN Motor ControlCool Horizontal blow time At normal operation Inverter System ControlFunction of main parts MUZ-A24 MUY-A24 Inverter main power supply circuit Outline of simple partial switching methodIntelligent power module Purpose of PAM adoptionPower transistor module PFC Power Factor ControllerPower factor improvement Sine wave control Control Method of Rotation TimesOperational Frequency Control of Outdoor Unit Cool Heatmuz DRYExpansion Valve Control LEV Control Cool · DRY ModeHeat Mode MUZ LEV is fixed to standard opening degree according to operaDegree Time chartMUZ-A09/12/15/17/24 MUY-A15/17/24 LEV130/100 190/130 240/170 260/210 260/230 MXZ Microprocessor Control Power factor improvement Opening before stop 500 pulse in 15 minutes Temperature is included in standard opening. w1With discharge temperature was added to basic opening. w1 Cool 5 pulse full closedCool Heat HeatMXZ-2A MXZ-3AMXZ-2A MXZ-3ACool DRY Heat More than Target discharge temperature+21.6 Discharge temperature ˚F Correction pulseMore than Target discharge temperature+18 Superheat LEV openingOperational Frequency Range Outdoor FAN Control Discharge Temperature Protection ControlHeat Defrosting Control 40Hz
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MUY-ANA, MSY-ANA, MS-AWA, MUZ-ANA, MXZ-ANA specifications

Mitsubishi Electronics has long been a leader in the HVAC (heating, ventilation, and air conditioning) industry, consistently delivering cutting-edge technology and innovative solutions. The MUZ-ANA, MUZ-ANA - U, MU-AWA, MUZ-FDNA, and MS-AWA models exemplify the company's commitment to efficiency, comfort, and advanced engineering.

The MUZ-ANA series is designed for residential and light commercial applications, offering powerful cooling and heating performance. One of the key features is its inverter technology, which allows for variable-speed operation. This means that the system can adjust the compressor speed according to the temperature demands, leading to significant energy savings and consistent comfort levels throughout the space. Additionally, the MUZ-ANA series operates quietly, ensuring a pleasant indoor environment.

The MUZ-ANA - U model takes energy efficiency a step further by incorporating a top-tier seasonal energy efficiency ratio (SEER) and heating seasonal performance factor (HSPF). This model is designed to maximize comfort while minimizing energy consumption, making it ideal for eco-conscious consumers.

The MU-AWA series is specifically tailored for larger spaces, making it suitable for commercial settings. Its robust design ensures reliability even under the most demanding conditions. Key features include advanced filtration systems that improve indoor air quality by trapping particulates and allergens, preferred by businesses aiming for a healthier environment.

The MUZ-FDNA model stands out for its sleek, compact design that fits seamlessly into various installation contexts, making it flexible for diverse architectural styles. It also features a built-in drain pan that helps in moisture removal, preventing mold growth and enhancing system longevity.

The MS-AWA model is particularly noteworthy for its smart connectivity options, allowing users to control their HVAC system via mobile devices. This feature empowers users to monitor and adjust temperatures remotely, providing added convenience and efficiency.

In summary, the Mitsubishi Electronics MUZ-ANA, MUZ-ANA - U, MU-AWA, MUZ-FDNA, and MS-AWA models feature state-of-the-art technology geared towards maximizing efficiency, comfort, and reliability. From inverter technology to smart connectivity, these units are designed to meet modern consumer demands while emphasizing sustainability and performance. With Mitsubishi Electronics, you can be assured of exceptional quality and technological advancement in HVAC solutions.