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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 tempera-
ture.
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.
Applied model
Operational frequency (Hz)
COOL HEAT (MUZ)DRY
Minimum Maximum Minimum Maximum Minimum Maximum
MUZ-A09 32 70 32 76 32 57
MUZ-A12 32 73 32 71 32 57
MUZ-A15 MUY-A15 10 82 15 93 10 68
MUZ-A17 MUY-A17 10 87 15 93 10 68
MUZ-A24 MUY-A24 15 110 15 108 15 102
MUZ-FD09 10 52 10 100 10 41
MUZ-FD12 10 62 10 100 10 41
MUZ-FE09 10 52 10 100 10 41
MUZ-FE12 10 62 10 100 10 41
MUZ-FE18 26 120 26 124 26 120
MUZ-D30 20 84 20 87 20 83
MUZ-D36 20 91 20 94 20 83
MUY-D30 20 79 — — 20 79
MUY-D36 20 92 — — 20 79
MUZ-GA24 MUY-GA24 15 101 15 108 15 101
MUZ-GE09 MUY-GE09 28 93 30 105 28 48
MUZ-GE12 MUY-GE12 20 98 30 98 30 55
MUZ-GE15 MUY-GE15 15 90 15 102 15 54
MUZ-GE18 MUY-GE18 15 98 15 108 15 83
MUZ-GE24 MUY-GE24 26 120 26 124 26 120
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.
Maximum
frequency
1 hour
or
0.5~1 hour
Upper limit
frequency
Rated frequency or less
Time