Panasonic CS-MC95KE / CS-MC125KE / CS-MC76KE / CS-MC126KE / CU-MC145KE / CU-MC185KE / CU-MC205KE / CU-MC245KE / CU-MC196KE Service Manual ▷ View online
•
Remote Control Reset
When the batteries are inserted for the first time, or the
batteries are replaced, all the indications will blink and the
remote control might not work.
batteries are replaced, all the indications will blink and the
remote control might not work.
If this happen, remove the back cover of the remote control
and you will find a resetting terminal, and by shorting it with
a minus screwdriver, it will return to normal.
and you will find a resetting terminal, and by shorting it with
a minus screwdriver, it will return to normal.
•
Changing the wireless remote control transmission
code
code
When two indoor units are installed in the same room, in
order to prevent operating errors caused by using two
remote controls, add a jumper wire to the remote control
side (J-B) and a carbon resistor (1/4 W, 10k
order to prevent operating errors caused by using two
remote controls, add a jumper wire to the remote control
side (J-B) and a carbon resistor (1/4 W, 10k
Ω
) to the indoor
printed circuit board (RX1), it is possible to select from 2
types of transmission codes including one at time of
delivery condition (1).
types of transmission codes including one at time of
delivery condition (1).
93
CS-MC95KE CU-MC145KE / CS-MC95KE CU-MC185KE / CS-MC95KE CU-3MC205KE / CS-MC125KE CU-MC245KE / CS-MC76KE / CS-MC126KE CU-MC196KE
14.1. Refrigeration cycle system
In order to diagnose malfunctions, make sure that there are no
electrical problems before inspecting the refrigeration cycle.
Such problems include insufficient insulation, problem with the
power source, malfunction of a compressor and a fan.
electrical problems before inspecting the refrigeration cycle.
Such problems include insufficient insulation, problem with the
power source, malfunction of a compressor and a fan.
The normal outlet air temperature and pressure of the
refrigeration cycle depend on various conditions, the standard
values for them are shown in the table to the right.
refrigeration cycle depend on various conditions, the standard
values for them are shown in the table to the right.
14 Troubleshooting Guide
94
CS-MC95KE CU-MC145KE / CS-MC95KE CU-MC185KE / CS-MC95KE CU-3MC205KE / CS-MC125KE CU-MC245KE / CS-MC76KE / CS-MC126KE CU-MC196KE
14.1.1. Relationship between the condition of the air conditioner and pressure and
electric current
Cooling Mode
Condition of the air
conditoner
Low Pressure
High Pressure
Electric current during operation
Insufficient refrigerant (gas
leakage)
Clogged capillary tube or
Strainer
Short circuit in the indoor unit
Heat radiation deficiency of
the outdoor unit
Inefficient compression
•
Carry out the measurements of pressure, electric current, and temperature fifteen minutes after an operation is started.
14.1.2. Diagnosis methods of a malfunction of a compressor
Nature of fault
Symptom
•
Electric current during operation becomes approximately 20% lower than the normal value.
Insufficient compressing of a compressor
•
The discharge tube of the compressor becomes abnormally hot (normally 70 to 90°C).
•
The difference between high pressure and low pressure becomes almost zero.
•
Electric current reaches a high level abnormally, and the value exceeds the limit of an
ammeter. In some cases, a breaker turns off.
ammeter. In some cases, a breaker turns off.
Locked compressor
•
The compressor has a humming sound.
95
CS-MC95KE CU-MC145KE / CS-MC95KE CU-MC185KE / CS-MC95KE CU-3MC205KE / CS-MC125KE CU-MC245KE / CS-MC76KE / CS-MC126KE CU-MC196KE
15 Technical Data
230V
Outdoor Temp. (°C)
Indoor wet
bulb temp.
bulb temp.
30
35
40
46
TC
SHC
IP
TC
SHC
IP
TC
SHC
IP
TC
SHC
IP
17.0°C
2.80
2.12
1.05
2.61
2.03
1.13
2.43
1.95
1.21
2.21
1.86
1.31
19.0°C
2.82
1.15
19.5°C
3.07
2.22
1.07
2.87
2.13
1.15
1.67
2.05
1.24
2.43
1.95
1.33
22.0°C
3.35
2.30
1.09
3.13
2.21
1.18
2.91
2.14
1.26
2.65
2.04
1.36
220V
Outdoor Temp. (°C)
Indoor wet
bulb temp.
bulb temp.
30
35
40
46
TC
SHC
IP
TC
SHC
IP
TC
SHC
IP
TC
SHC
IP
17.0°C
2.76
2.09
1.01
2.58
2.00
1.08
2.40
1.93
1.16
2.18
1.83
1.25
19.0°C
2.78
1.10
19.5°C
3.03
2.19
1.03
2.83
2.10
1.10
2.63
2.02
1.18
2.39
1.93
1.27
22.0°C
3.30
2.27
1.05
3.08
2.18
1.12
2.87
2.11
1.20
2.61
2.01
1.30
230V
Outdoor Temp. (°C)
Indoor wet
bulb temp.
bulb temp.
30
35
40
46
TC
SHC
IP
TC
SHC
IP
TC
SHC
IP
TC
SHC
IP
17.0°C
3.59
2.72
1.12
3.36
2.61
1.20
3.12
2.51
1.29
2.84
2.38
1.39
19.0°C
3.62
1.22
19.5°C
3.94
2.85
1.14
3.69
2.74
1.22
3.43
2.64
1.31
3.12
2.51
1.41
22.0°C
4.30
2.96
1.16
4.01
2.84
1.25
3.74
2.74
1.33
3.40
2.61
1.44
96
CS-MC95KE CU-MC145KE / CS-MC95KE CU-MC185KE / CS-MC95KE CU-3MC205KE / CS-MC125KE CU-MC245KE / CS-MC76KE / CS-MC126KE CU-MC196KE
Click on the first or last page to see other CS-MC95KE / CS-MC125KE / CS-MC76KE / CS-MC126KE / CU-MC145KE / CU-MC185KE / CU-MC205KE / CU-MC245KE / CU-MC196KE service manuals if exist.