Panasonic CS-G95KE / CS-G125KE / CU-G95KE / CU-G125KE Service Manual ▷ View online
15.
Power Monitor Display
16.
Remote Control Signal Receiving Sound ON/OFF
17.
Indoor Power Relay Control
Power Monitor LED lights on when the compressor is in operation. The number of the LED lights on is in accordance to the
compressor operating frequency.
compressor operating frequency.
Model
Display
A
A, B
A, B, C
A, B, C, D
A, B, C, D, E
Cooling & Soft Dry
Indication Frequency
15 ~ 26
31 ~ 33
36 ~ 40
43 ~ 46
51 ~ 64
(Hz)
CS-G95KE
Heating Indication
Frequency (Hz)
15 ~ 26
31 ~ 40
43 ~ 58
63 ~ 64
71 ~ 99
Cooling & Soft Dry
Indication Frequency
15 ~ 27
31 ~ 36
44 ~ 49
58 ~ 64
71 ~ 92
CS-G125KE
(Hz)
Heating Indication
Frequency (Hz)
15 ~ 27
31 ~ 44
58 ~ 79
83 ~ 86
91 ~ 115
•
Press the Auto button (at indoor unit) for 16 seconds or < 21 seconds. “Beep” “beep” “beep” “beep” will be heard at 16th second.
Remove the back cover of Remote Control, short the diagnosis (
Remove the back cover of Remote Control, short the diagnosis (
) terminals at the back of remote control to switch to
Remote Control signal receiving sound ON/OFF mode. One “beep” will be heard*. Then, press the Auto button once again,
“beep” sound will be heard. The Remote Control signal receiving sound has been turned off.
“beep” sound will be heard. The Remote Control signal receiving sound has been turned off.
•
Repeat the above procedure or reset the main power supply to switch on the remote control signal receiving sound.
* If “beep” “beep” sound is heard and “E1” or “E2” is displayed, the setting has been switched to H14 diagnosis mode.
Refer Servicing Information for more details.
•
The power relay turns on when one of the indoor LED lights on.
•
The power relay turns off when all of the indoor LEDs lights off.
•
When the air conditioner is stopped during operation, the power relay stays ON for 3 minutes.
•
The power relay will turn off if a sudden power failure occurs
0.05 second. The power relay will turn on again after 3-4 minutes
(Refer AUTO RESTART CONTROL). It will start with the previous operation condition before the power failure.
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CS-G95KE CU-G95KE / CS-G125KE CU-G125KE
1.
Protection Control For All Operations
Model No.
CU-G95KE
CU-G125KE
I1 (A)
6.1
9.2
I2 (A)
7.3
10.8
8.2. Protection
a. Time Delay Safety Control
•
The Compressor is not restarted for 3 minutes after stop of compressor.
b. 30 Second Forced Operation
•
Once the compressor is ON, it will not turn OFF for 30 seconds. However, it is turned off by remote control or Automatic
switch.
switch.
c. Total Running Current Control
•
When the outdoor unit total running current (AC) exceeds I1, the frequency is lowered by 1 rank. If I1 is not exceeded for
30 seconds, the frequency is highered by 1 rank at one time. If the outdoor unit total running current exceeds I2, the
compressor is immediately stopped for 3 minutes.
30 seconds, the frequency is highered by 1 rank at one time. If the outdoor unit total running current exceeds I2, the
compressor is immediately stopped for 3 minutes.
<Cooling, Soft Dry set value>
Zone A
Zone B
Model No.
CU-C95KE
CU-G125KE
CU-G95KE
CU-G125KE
I1 (A)
5.3
6.7
4.3
5.2
I2 (A)
7.3
10.8
7.3
10.8
Note: Zone A will be used 30 minutes after operation starts.
<Heating set value>
•
If the outdoor unit total running current exceeds I2 3 times within 30 minutes, all indoor and outdoor relays will be turned off;
TIMER LED will blink and F98 is displayed.
TIMER LED will blink and F98 is displayed.
d. IPM (Power transistor) Prevention Control
1. Overheating Prevention Control
•
When the IPM (power transistor) temperature rises to 100 ± 10°C, the compressor stops immediately. The compressor
is restarted when the IPM (power transistor) temperature decreases to 90 ± 10°C after 3 minutes (Time Delay Safety
Control). If this condition occurs 4 times within 40 minutes, all indoor and outdoor relays will be turned off; TIMER LED
will blink and F96 is displayed.
is restarted when the IPM (power transistor) temperature decreases to 90 ± 10°C after 3 minutes (Time Delay Safety
Control). If this condition occurs 4 times within 40 minutes, all indoor and outdoor relays will be turned off; TIMER LED
will blink and F96 is displayed.
42
S-G95KE CU-G95KE / CS-G125KE CU-G125KE
2. DC Peak Current Control
•
When the electric circuit to the IPM (power transistor) exceeds the set value, DC 27 ± 4A, the compressor stops. The
compressor restarts after 3 minutes.
compressor restarts after 3 minutes.
•
If within 30 seconds the set value is exceeded again, the compressor will stop for 1 minute. If this condition repeats for
7 times, all indoor and outdoor relays will be turned off; TIMER LED will blink and F99 is displayed.
7 times, all indoor and outdoor relays will be turned off; TIMER LED will blink and F99 is displayed.
e. Compressor Overheating Prevention Control
•
When the temperature of compressor rises to 105°C, the frequency is reduced as shown in diagram below.
When the temperature rises to 115°C or above, the compressor stops. The compressor will start operating at low frequency
when the temperature falls to 115°C and resume to normal condition when the temperature falls to 94°C.
when the temperature falls to 115°C and resume to normal condition when the temperature falls to 94°C.
•
The compressor stops when the temperature rises to 115°C. If this condition occurs 4 times within 20 minutes, all indoor and
outdoor relays will be turned off; TIMER LED will blink and F97 is displayed.
outdoor relays will be turned off; TIMER LED will blink and F97 is displayed.
f. Low Pressure Control (Gas Leakage Detection)
•
When the following conditions as shown in the below table occur, the compressor stops and restarts after 3 minutes. If this
phenomenon is continuously occuring twice within 30 minutes, all indoor and outdoor relays will be turned off; TIMER LED
will blink and F91 is displayed.
phenomenon is continuously occuring twice within 30 minutes, all indoor and outdoor relays will be turned off; TIMER LED
will blink and F91 is displayed.
Comp. Frequency
51 Hz and above
71 Hz and above
70 Hz and above
90 Hz and above
Total Running Current
1.88 A and < 1.9 A
1.88 A and < 2.1 A
1.88 A and < 2.4 A
1.88 A and < 2.7 A
Indoor Heat Exchanger Temp.
15°C or above
30°C or below
15°C or above
30°C or below
Operation
Cooling/Soft Dry
Heating
Cooling/Soft Dry
Heating
Model No.
CU-G95KE
CU-G125KE
Note: The above conditions are not valid during Deice operation.
This conditions are continuous for 5 minutes.
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CS-G95KE CU-G95KE / CS-G125KE CU-G125KE
g. Minimum Frequency Operation Protection
•
When the compressor operates at less than 31 Hz for 40 minutes, the operating frequency will increase to 31 Hz for 2
minutes.
minutes.
h. Low Frequency Operation Protection
Indoor intake air temp. (°C)
30°C or < 15°C
28°C or < 14°C
Outdoor air temp. (°C)
38°C or < 16°C
24°C or < 4°C
Indoor heat exchanger temp. (°C)
< 30 °C
> 0°C
Operation
Cooling/Soft Dry
Heating
•
When the above conditions occur, the compressor will operate at minimum frequency as below:-
CU-G95KE
CU-G125KE
Cooling/Soft Dry
Min 31Hz
Min 31Hz
Heating
Min 33Hz
Min 36Hz
i. Low Power Supply Voltage Protection
•
When the DC voltage supplied to IPM (Power transistor) is reduced to 169 ± 5V (CS-G95KE) or 160 ± 5V (CS-G125KE) the
compressor stops and restarts after 3 minutes.
compressor stops and restarts after 3 minutes.
•
If within 30 seconds after restarting of compressor, the DC voltage is reduced to 169 ± 5V (CS-G95KE) or 160 ± 5V (CS-
G125KE) again, the compressor will stop for 1 minute.
G125KE) again, the compressor will stop for 1 minute.
If this condition repeats for 7 times, all indoor and outdoor relays will be turned off; TIMER LED will blink and F99 is
displayed.
displayed.
j. High Power Supply Voltage Protection
•
When the voltage supply (AC) exceeds 295 ± 15V (T
0
), the air conditioner stops and restarts automatically when the voltage
supply (AC) is below (T
0
- 5)V. However, waiting for 3 minutes is necessary for re-operation.
44
S-G95KE CU-G95KE / CS-G125KE CU-G125KE
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