Protection Control For Heating Operation - Panasonic CS-E9GFEW Service Manual

3. Control contents
- Change a current limit value in a protection location A. (Refer to the clause of total running current control value)
4. Condition resolutive
It is canceled when it stops satisfying all of the above-mentioned.
9.15.2.3. Anti-Freezing Control
1. When indoor heat exchanger temperature is lower than 2 C continuously for six minutes, compressor will stop operating
2. Compressor will resume its operation three minutes after the indoor heat exchanger is higher than 10 C.
3. At the same time, indoor fan speed increase +20 rpm compared to its normal operation.
4. If indoor heat exchanger temperature is higher than 10 C for five minutes, the fan speed will return to its normal operation.
9.15.2.4. Anti-Dew Formation Control
1. When indoor fan speed is set at Me- or slower, the compressor operating frequency is regulated by operation time to prevent
fog discharged from indoor as shown in below table.
rpm Operation time, T (min)
0 < T
Below 710 30 < T
90 < T
0 < T
710 ~ 790 30 < T
90 < T
0 < T
791 ~ 970 30 < T
90 < T
0 < T
970 above 30 < T
90 < T
2. After 420 minutes, the operation restarts again from the beginning.
3. The operation will restart the above control whenever remote controller setting temperature or fan speed setting is changed.

9.15.3. Protection Control For Heating Operation

9.15.3.1. Intake Air Temperature Control
Compressor will operate at Max freq 67 if either one of the below conditions occur:
1. When the indoor intake air temperature is less than 20 C and remote control setting fan speed is lower Me-.
2. When the indoor intake air temperature is 30 C or above.
CU-E9GFE
30 26Hz
90 26Hz
420 26Hz
40Hz
30
90 33Hz
420 32Hz
30 50Hz
90 40Hz
40Hz
420
30 52Hz
90 40Hz
420 40Hz
CU-E12GFE rpm
39Hz
37Hz 1170 ~ 1450
37Hz
59Hz
48Hz 1310 ~ 1450
47Hz
70Hz
59Hz 1310 above
59Hz
72Hz
59Hz
59Hz
50
Operation time, T (min) CU-E18GFE
0 < T 30
30 < T 90
90 < T 420
0 < T 30
30 < T 90
90 < T 420
0 < T 30
30 < T 90
90 < T 420
61Hz
45Hz
43Hz
68Hz
68Hz
47Hz
86Hz
72Hz
72Hz