Panasonic CU-4KS31NBU CU-4KS31NBU Owner's Manual - Page 67

f fluctuation fan, Fig. 1

Get Panasonic CU-4KS31NBU PDF manuals and user guides View all Panasonic CU-4KS31NBU manuals
Add to My Manuals
Save this manual to your list of manuals

Page 67 highlights

(1/f fluctuation fan) Control/conditions SENSOR The ON/OFF operation DRY button on the remote controller is pressed. Unit operation Explanation The operation lamp illuminates. The indoor fan operates at the set fan speed. The outdoor unit stops. The outdoor unit does not operate for 3 minutes even after the breaker is turned ON. The outdoor unit starts. (Compressor and the outdoor fan start.) When the frequency reaches Hz, frequency increases are stopped for a period of seconds. (Refer to Table 1.) The frequency then increases. The room temperature reaches the desired temperature, and there is no need for further cooling. DRY operation starts DRY A operation The indoor fan changes between "Low" and "LL" (very low) over a 6-minute cycle. This is 1/f fluctuation fan operation. (Refer to Fig. 1.) The room temperature is 59 °F or higher, and is slightly too cold. DRY B operation (1) The indoor fan changes between "Low" and "LL" (very low) over a 6-minute cycle. This is 1/f fluctuation fan operation. The frequency is increased at the rate of 0.5 Hz every 1 seconds. This is in order to stabilize the return of oil to the compressor. If the indoor and outdoor temperatures are high, the current peak cut-off activates, stopping any increases in frequency. Operating frequency is stabilized in order to maintain a comfortable environment. Operates to effectively dehumidify the air while not excessively reducing the indoor temperature. The indoor unit operates at 1/f fluctuation fan operation, at a fan speed that does not cause a chilly feeling. The compressor operates on a 3-minutes ON, 6-minutes OFF cycle, to prevent the room temperature from dropping too much. (2) After appoximately 3 minutes, the compressor turns OFF, the outdoor fan turns OFF, and the indoor fan turns OFF. (3) After approximately 6 minutes, the conditions return to (1). The room temperature is below 59 °F. Monitoring operation begins. 1/f fluctuation fan 250 When monitoring operation begins, the compressor stops, and the indoor fan operates at "LL" (very low) speed. 200 150 (Step) 100 50 0 6-minute cycle Fig. 1 67

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
  • 46
  • 47
  • 48
  • 49
  • 50
  • 51
  • 52
  • 53
  • 54
  • 55
  • 56
  • 57
  • 58
  • 59
  • 60
  • 61
  • 62
  • 63
  • 64
  • 65
  • 66
  • 67
  • 68
  • 69
  • 70
  • 71
  • 72
  • 73
  • 74
  • 75
  • 76
  • 77
  • 78
  • 79
  • 80
  • 81
  • 82
  • 83
  • 84
  • 85
  • 86
  • 87
  • 88
  • 89
  • 90
  • 91
  • 92
  • 93
  • 94
  • 95
  • 96
  • 97
  • 98
  • 99
  • 100
  • 101
  • 102
  • 103
  • 104
  • 105
  • 106
  • 107
  • 108
  • 109
  • 110
  • 111
  • 112
  • 113
  • 114
Control/conditions
SENSOR
DRY
(1/f fluctuation fan)
The ON/OFF operation
button on the remote
controller is pressed.
The outdoor unit does not operate for 3 minutes
even after the breaker is turned ON.
This is in order to stabilize the return of oil to the
compressor.
The outdoor unit starts.
(Compressor and the outdoor fan start.)
When the frequency reaches
Hz,
frequency increases are stopped for a period
of
seconds. (Refer to Table 1.)
DRY B operation
If the indoor and outdoor temperatures are high,
the current peak cut-off activates, stopping
any increases in frequency.
The frequency then increases.
Unit operation
Explanation
The operation lamp illuminates.
The indoor fan operates at the set fan speed.
The outdoor unit stops.
The room temperature
reaches the desired
temperature, and there
is no need for further
cooling.
Operating frequency is stabilized in order to
maintain a comfortable environment.
The room temperature is
59 °F or higher, and is
slightly too cold.
The compressor operates on a 3-minutes ON,
6-minutes OFF cycle, to prevent the room
temperature from dropping too much.
DRY operation starts
DRY A operation
The room temperature is
below 59 °F.
When monitoring operation begins, the
compressor stops, and the indoor fan operates at
"LL" (very low) speed.
Monitoring operation begins.
The indoor fan changes between "Low"
and "LL" (very low) over a 6-minute cycle.
This is 1/f fluctuation fan operation.
(Refer to Fig. 1.)
The indoor fan changes between "Low"
and "LL" (very low) over a 6-minute cycle.
This is 1/f fluctuation fan operation.
After appoximately 3 minutes, the
compressor turns OFF, the outdoor fan
turns OFF, and the indoor fan turns OFF.
After approximately 6 minutes, the
conditions return to (1).
(1)
(2)
(3)
The frequency is increased at the rate of 0.5
Hz every 1 seconds.
Operates to effectively dehumidify the air while
not excessively reducing the indoor
temperature.
The indoor unit operates at 1/f fluctuation fan
operation, at a fan speed that does not cause
a chilly feeling.
1/f fluctuation fan
250
200
6-minute cycle
Fig. 1
150
100
(Step)
50
0
67