-
40
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'20 • PAC-SM-351
(1) Determination of compressor speed (Frequency)
Required frequency
(a) Cooling/dehumidifying operation Unit: rps
Model
FDC100 FDC125 FDC140
Max. required
frequency
Usual operation 75 95 95
Silent mode, outdoor air temperature ≦ 15°C
40 50 58
Silent mode II ( When SW4-1 ON )
36 36 36
Min. required frequency 11 11 11
(b) Heating operation Unit: rps
Model
FDC100 FDC125 FDC140
Max. required
frequency
Usual operation 100 120 120
Silent mode 39 50 59
Silent mode II ( When SW4-1 ON )
36 36 36
Min. required frequency 11 11 11
(c) If the indoor fan speed becomes “Me” or “Lo”, Max required frequency goes down accordingly depending on indoor
unit model.
(d) Max. required frequency under high outdoor air temperature in cooling mode
Maximum required frequency is selected according to the outdoor air temperature (Tho-A).
Unit: rps
Model
FDC100 FDC125 FDC140
Max. required
frequency
Outdoor air temperature is
40°C or higher
75 75 75
Outdoor air temperature is
46°C or higher
70 70 70
(e) Max. required frequency under outdoor air temperature in heating mode.
Maximum required frequency is selected according to the outdoor air temperature (Tho-A).
Unit: rps
Model
FDC100 FDC125 FDC140
Max. required
frequency
Outdoor air temperature is
18°C or higher
80 80 85
Outdoor air temperature is
10°C or higher
75 95〔92〕 95〔92〕
Note (1) Value in
〔
〕
are for the 3 phase models.
(f) Selection of max. required frequency by heat exchanger temperature
(i) Maximum required frequency is selected according to the outdoor heat exchanger temperature (Tho-R) during
cooling/dehumidifying or according to the indoor heat exchanger temperature (Thi-R) during heating mode.
(ii) When there are 3 indoor heat exchanger temperatures (Thi-R), whichever the highest applies.
When there are 2 outdoor heat exchanger temperatures (Tho-R), whichever the higher applies.
Unit: rps
Model
FDC100 FDC125 FDC140
Max. required
frequency
Cooling/
dehumidifying
Outdoor heat exchanger
temperature is 55°C or higher
70 95〔92〕 95〔92〕
Heating
Indoor heat exchanger
temperature is 55°C or higher
100 100 100
Note (1) Value in
〔
〕
are for the 3 phase models.
(g) When any of the controls from (a) to (f) above may duplicate, whichever the smallest value among duplicated controls
is taken as the maximum required frequency.
(h) During heating, it is operated with the maximum required frequency until the indoor heat exchanger temperature
becomes 40°C or higher.
1.1.4 Operation control function by the outdoor control
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