Fujitsu AUUH18LUAS - Cooling Operation; Rotation Number Control of Compressor

1. Rotation number control of compressor
1-1. Cooling operation
A sensor (room temperature thermistor) built in the indoor unit body will usually perceive difference
or variation between a set temperature and present room temperature, and controls the operation
rotation number of the compressor.
• If the room temperature is 11°F (6.0°C) higher than a set temperature, the operation rotation num-
ber of compressor will attain to maximum performance.
• If the room temperature is 2°F (1.0°C) lower than a set temperature, the compressor will be
stopped.
• →hen the room temperature is within the range of +11°F (6.0°C) to -2°F (1.0°C) of the setting tem-
perature, the rotation number of compressor is controlled within the range shown in the table be-
low. However, the maximum rotation number is limited in the range shown in the figure below
based on the indoor fan mode and the outdoor temperature.
• Rotation number range of compressor
Unit: rps
Model name Minimum frequency Maximum frequency
AUUH18LUAS 8 102
AUUH24LUAS 10 102
AUUH30LUAS 15 98
AUUH36LUAS 15 103
1-1. Cooling operation - (04-1) - 1. Rotation number control of compressor
CONTROL AND FUNCTIONS CONTROL AND FUNCTIONS