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1.1.4 Operation control function by the outdoor control
(1) Determination of compressor speed (Frequency)
Required frequency
(a)
Cooling/dehumidifying operation
Max. required
frequency
Min. required frequency
(b) Heating operation
Max. required
frequency
Min. required frequency
(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).
Max. required
frequency
(e)
Max. required frequency under outdoor air temperature in heating mode.
Maximum required frequency is selected according to the outdoor air temperature (Tho-A).
Max. required
frequency
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.
Max. required
frequency
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.
Model
Usual operation
Silent mode, outdoor air temperature ≦ 15°C
Silent mode II ( When SW4-1 ON )
Model
Usual operation
Silent mode
Silent mode II ( When SW4-1 ON )
Model
Outdoor air temperature is
40°C or higher
Outdoor air temperature is
46°C or higher
Model
Outdoor air temperature is
18°C or higher
Outdoor air temperature is
10°C or higher
Model
Cooling/
Outdoor heat exchanger
dehumidifying
temperature is 55°C or higher
Indoor heat exchanger
Heating
temperature is 55°C or higher
-
FDC100 FDC125 FDC140
75
95
40
50
36
36
11
11
FDC100 FDC125 FDC140
100
120
39
50
36
36
11
11
FDC100 FDC125 FDC140
75
75
70
70
FDC100 FDC125 FDC140
80
80
95 〔 92〕 95 〔 92〕
75
FDC100 FDC125 FDC140
95 〔 92〕 95 〔 92〕
70
100
100
40
-
'20 • PAC-SM-351
Unit: rps
95
58
36
11
Unit: rps
120
59
36
11
Unit: rps
75
70
Unit: rps
85
Unit: rps
100
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