Fujitsu General AOHG45KRTA, Service Manual, Page: 97 / 154

1-4. Rotation number of compressor at normal start-up
Compressor frequency soon after starting is controlled as below.
Frequency I
Frequency II
Frequency III
Frequency IV
Frequency V
Frequency VI
Frequency VII
Time 1 Time 2 Time 3 Time 4 Time 5 Time 6 Time 7
Frequency VIII
Time 8
Frequency IX
Frequency X
Time 9 Time 10
• Normal operation
Frequency
(rps)
I II III IV V VI VII VIII IX X
41 46 51 57 60 72 81 91 100 110
Time (sec)
1 2 3 4 5 6 7 8 9 10
60 120 180 240 360 420 480 540 600 660
• Special operation
Frequency
(rps)
I II III IV V VI VII VIII IX X
41 46 51 57 60 72 81 91 100 110
Time (sec)
1 2 3 4 5 6 7 8 9 10
120 185 245 305 605 665 725 785 845 1,000
NOTES:
• Normal operation:
– Cooling and dry mode
• Below 3 hours from the compressor stop and the compressor thermistor ≥ 15 °C
• After defrost operation
– Other than when the compressor starts for the first time since the breaker turns on
• Special operation:
– Other than the normal operation condition
– When the compressor starts for the first time since the breaker turns on
1-4. Rotation number of compressor at normal start-up
- (04-3) -
1. Rotation number control of compressor
CONTROL AND FUNCTIONS CONTROL AND FUNCTIONS