'22 • PAC-SM-422
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161
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(
II
) Model FDC200VSA-W
(1) Determination of compressor speed
Required compressor speed
(a) Cooling/dehumidifying operation.
Unit: rps
Model FDC200
Max. required
compressor speed
Usual operation 120
Outdoor air temperature ≦ 15°C or
indoor return air temperature ≦ 20°C
68
Silent mode 50 (68)
Min. required compressor speed 20
Note Value in ( ) are for the SW7-3 OFF.
(b) Heating operation.
Unit: rps
Model FDC200
Max. required
compressor speed
Usual operation 120
Silent mode 76 (94)
Min. required compressor speed 24
Note Value in ( ) are for the SW7-3 OFF.
(c) If the indoor fan speed becomes “Me” or “Lo”, Max required compressor speed goes down accordingly depending on
indoor unit model.
(d) Max. required compressor speed under high outdoor air temperature in cooling mode.
Maximum required compressor speed is selected according to the outdoor air temperature (Tho-A).
Unit: rps
Model FDC200
Max. required
compressor speed
Outdoor air temperature is
35°C or higher
106
Outdoor air temperature is
42°C or higher
90
(e) Max. required compressor speed under high outdoor air temperature in heating mode.
Maximum required compressor speed is selected according to the outdoor air temperature (Tho-A).
Unit: rps
Model FDC200
Max. required
compressor speed
Outdoor air temperature is
10°C or higher
120
Outdoor air temperature is
18°C or higher
120
(f) Selection of max. required compressor speed by heat exchanger temperature.
(i) Maximum required compressor speed is selected according to the outdoor heat exchanger temperature (Tho-R)
during cooling/dehumidifying or according to the indoor heat exchanger temperature (Th2) during heating mode.
(ii) When there are 2 indoor heat exchanger temperatures (Th2), whichever the higher applies,
When there are 2 outdoor heat exchanger temperature (Tho-R), whichever the higher applies.
Unit: rps
Model FDC200
Max. required
compressor speed
Cooling/
dehumidifying
Outdoor heat exchanger
temperature is 55°C or higher
120
Heating
Indoor heat exchanger
temperature is 55°C or higher
120
(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 compressor speed.
(h) During heating, it is operated so that the required compressor speed adds 5 rps every 1 minute until the indoor heat
exchanger temperature becomes 40°C or higher.
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