PANASONIC - CS-A12CTP CU-A12CTP5 CS-A18CTP CU-A18CTP5 CS-A24CTP CU-A24CTP5 _ ROOM AIR CONDITIONER _ SERVICE HELP
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.
- If this happen, 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
- When two indoor units are installed in the same room, in order to prevent operating errors caused by using two remote controls, cut a jumper wire at the remote control printed circuit board (A - B) and cut a jumper wire at the indoor printed circuit board (JX4). It is possible to select from 4 types of transmission codes including one at time of delivery condition (0).
Click on image.
TROUBLESHOOTING GUIDE
- 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. The normal outlet air temperature and pressure of the refrigeration cycle depends on various conditions, the standard values for them are shown in the table.
DIAGNOSIS METHOD OF A MALFUNCTION OF A COMPRESSOR AND FOUR WAY VALVE
Nature of fault
|
Symptom
|
Insufficient compressing of a compressor
|
[1] Electric current during operation
becomes approximately 20% lower than the normal value.
Insufficient compressing of a compressor
[2] The discharge tube of the compressor
becomes abnormally hot (normally 70 to 90°C).
[3] The difference between high pressure and
low pressure becomes almost zero.
|
Locked compressor
|
[1] Electric current reaches a high level
abnormally, and the value exceeds the limit of an ammeter. In some cases, a
breaker turns off.
Locked compressor
[2] The compressor is a humming sound.
|
Insufficient switches of the 4-way valve
|
[1] Electric current during operation
becomes approximately 80% lower than the normal value.
[2] The temperature different between
from the discharge tube to the 4-way valve and from suction tube to the 4-way
valve becomes almost zero.
|
THERMOSTAT CHARACTERISTICS GRAPH REPRESENTATION
EXPLODED VIEW [CS-A12CTP _ CS-A18CTP _ CS-A24CTP]
EXPLODED VIEW [CU-A12CTP5]
EXPLODED VIEW [CU-A18CTP5 _ CU-A24CTP5]
ATTACHED ACCESSORIES
INDOOR/OUTDOOR UNIT INSTALLATION DIAGRAM
INDOOR UNIT
- There should not be any heat source or steam near the unit.
- There should not be any obstacles blocking the air circulation.
- A place where air circulation in the room is good.
- A place where drainage can be easily done.
- A place where noise prevention is taken into consideration.
- Do not install the unit near the door way.
- Ensure the spaces indicated by arrows from the wall, ceiling, fence or other obstacles
OUTDOOR UNIT
- If an awning is built over the unit to prevent direct sunlight or rain, be careful that heat radiation from the condenser is not obstructed.
- There should not be any animal or plant which could be affected by hot air discharged.
- Keep the spaces indicated by arrows from wall, ceiling, fence or other obstacles.
- Do not place any obstacles which may cause a short circuit of the discharged air.
- If piping length is over the rated length, additional refrigerant should be added as shown in the table.
