Mitsubishi Electronics MSZ-FDNA Operational Frequency Control of Outdoor Unit, MUZ-FD09, MUZ-FD12

Page 17

2-8. OPERATIONAL FREQUENCY CONTROL OF OUTDOOR UNIT

1.Outline

The operational frequency is as following:

First, the target operational frequency is set based on the difference between the room temperature and the set tem- perature.

Second, the target operational frequency is regulated by discharge temperature protection, high pressure protection, electric current protection and overload protection and also by the maximum/minimum frequency.

2.Maximum/minimum frequency in each operation mode.

 

 

 

 

 

 

Unit: Hz

 

COOL

HEAT (MUZ)

DRY

Applied model

 

 

 

 

 

 

Minimum

Maximum

Minimum

Maximum

Minimum

Maximum

 

frequency

frequency

frequency

frequency

frequency

frequency

 

 

 

 

 

 

 

MUZ-A09

32

70

32

76

32

57

MUZ-A12

32

73

32

71

32

57

MUZ-A15

10

82

15

93

10

68

MUY-A15

 

 

 

 

 

 

MUZ-A17

10

87

15

93

10

68

MUY-A17

 

 

 

 

 

 

MUZ-A24

15

110

15

108

15

102

MUY-A24

 

 

 

 

 

 

MUZ-FD09

10

52

10

100

10

41

MUZ-FD12

10

62

10

100

10

41

MUZ-D30

20

84

20

87

20

83

MUY-D36

20

79

20

79

MUZ-D36

20

91

20

94

20

83

MUY-D36

20

92

20

79

The operation frequency in COOL mode is restricted by the upper limit frequency after 1 hour or 0.5 ~ 1 hour as shown below for dew prevention.

It is rated frequency or less.

Upper limit frequency

Maximum

frequency

1 hour

or

0.5~1 hour

Rated frequency or less

Time

17

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Contents Revised EDITION-B ContentsRevision a MXZ-2A20NA MXZ-3A30NA MXZ-4A36NA MS-A09WA MU-A09WA MS-A12WA MU-A12WACool Operation MS-AWA MU-AWAOperation time chart Example When the room temperature is under 73 FHorizontal vane Auto Vane OperationMSZ-ANA MSY-ANA MSZ-FDNA MSY-DNA MSZ-DNA Low outside temperature operationMUZ-ANA MUY-ANA MUZ-FDNA MUY-DNA MUZ-DNA MSZ-A MSY-A MSZ-FD MSZ-D MSY-DHeat Operation MSZ Gradation of fan speed in initial MSZ-A24Overload starting DefrostingMode selection Auto Change Over ··· Auto Mode Operation MSZMUZ-FD MUZ-D MUY-D Outdoor FAN Motor ControlMUZ-A MUY-A Function of main parts Inverter System ControlMUZ-FD MUZ-A24 MUY-A24 MUZ-D MUY-D At normal operation Outline of simple partial switching methodPurpose of PAM adoption Input current waveform without PAMCompressor Intelligent power moduleElimination of electrical noise Control Method of Rotation Times Sine wave controlMUZ-FD12 Operational Frequency Control of Outdoor UnitMUZ-FD09 Heat Mode Cool · DRY ModeExpansion Valve Control LEV Control Pulse MUZ-A09/12/15/17 MUY-A15/17MUZ-A15/17 MUZ-A09/12MUY-A15/17 MUZ-A24260 MXZ-ANA Inverter main power supply circuitProtects transistors from over current Opening before stop → 500 pulse in 15 minutes MXZ-2A20NA MXZ-2A20NA/3A30NACool Heat MXZ-3A30NAMXZ-3A30NA MXZ-2A20NAReceiver LEV MXZ-2A20NA Exclusive LEVMXZ-3A30NA Exclusive LEV MXZ-4A36NACool DRY Heat MXZ-3A30NA MXZ-2A20NAMXZ-2A MXZ-3A MXZ-4A∆RT Operational Frequency RangeHeat Defrosting Control Discharge Temperature Protection ControlOutdoor FAN Control MXZ-4APRE-HEAT Control MXZ-2A20NA- 1 MXZ-3A30NA MXZ-4A36NA Heat Operation DRY OperationHigh pressure protection Made in Japan
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MSZ-FDNA, MUZ-FDNA - U, MUZ-FDNA, MUZ-ANA - U, MUY-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.

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