CS-A7HKD, CS-A9HKD, CS-A12HKD, CU-A7HKD, CU-A9HKD, CU-A12HKD - Panasonic Air Conditioner Service Manual (repair manual). Page 3

3

1.

Engage dealer or specialist for installation and servicing. If installation or servicing done by the user is defective, it will cause water 
leakage, electrical shock or fire.

2.

Install according to this installation instructions strictly. If installation is defective, it will cause water leakage, electrical shock or fire.

3.

Use the attached accessories parts and specified parts for installation and servicing. Otherwise, it will cause the set to fall, water leakage, 
fire or electrical shock.

4.

Install at a strong and firm location which is able to withstand the set's weight. If the strength is not enough or installation is not properly 
done, the set will drop and cause injury.

5.

For electrical work, follow the local national wiring standard, regulation and the installation instruction. An independent circuit and single 
outlet must be used. If electrical circuit capacity is not enough or defect found in electrical work, it will cause electrical shock or fire.

6.

This equipment is strongly recommended to install with Earth Leakage Circuit Breaker (ELCB) or Residual Current Device (RCD).
Otherwise, it may cause electrical shock and fire in case equipment breakdown or insulation breakdown.

7.

Use the specified cable and connect tightly for indoor/outdoor connection. Connect tightly and clamp the cable so that no external force will 
be acted on the terminal. If connection or fixing is not perfect, it will cause heat-up or fire at the connection.

8.

Wire routing must be properly arranged so that control board cover is fixed properly. If control board cover is not fixed perfectly, it will cause 
heat-up or fire at connection point of terminal, fire or electrical shock.

9.

When carrying out piping connection, take care not to let air substances other than the specified refrigerant go into refrigeration cycle.
Otherwise, it will cause lower capacity, abnormal high pressure in the refrigeration cycle, explosive and injury.

10. Do not install outdoor unit near handrail of veranda. When installing air-conditioner unit at veranda of high rise building, child may climb up 

to outdoor unit and cross over the handrail and causing accident.

11. This equipment must be properly earthed. Earth line must not be connected to gas pipe, water pipe, earth of lightning rod and 

telephone. Otherwise, it may cause electric shock in case equipment breakdown or insulation breakdown.

12. When connecting the piping, do not allow air or any substances other than the specified refrigerant to enter the refrigeration 

cycle. Otherwise, this may lower the capacity, cause abnormally high pressure in the refrigeration cycle, and possibly result in 
explosion and injury.

13. Do not damage or use unspecified power supply cord. Otherwise it will cause fire or electric shock.

14. Do not modify the length of the power supply cord or use extension cord, and do not share the single outlet with other electrical 

appliances. Otherwise, it will cause fire or electric shock.

15. It is desirable that the amount of residual oil is less than 40 mg/10 m.

16. During installation, before run the compressor, confirm the refrigerant pipes are fixed. Operation of compressor without fixing the piping, 

setting the valves at open condition, a burst may occur and cause injury.

17. After completion of installation or service, confirm there is no leakage or refrigerant gas. It may generate toxic gas when the refrigerant 

contacts with fire.

18. Ventilate if there is refrigerant gas leakage during operation. It may cause toxic gas when refrigerant contacts with fire.

1.

Do not install the unit at place where leakage of flammable gas may occur. In case gas leaks and accumulates at surrounding of 
the unit, it may cause fire.

2.

Carry out drainage piping as mentioned in installation instructions. If drainage is not perfect, water may enter the room and damage the 
furniture.

3.

Tighten the flare nut with torque wrench according to specified method. If the flare nut is over-tightened, after a long period, the flare may 
break and cause refrigerant gas leakage.

4.

Do not touch outdoor unit air inlet and aluminium fin. It may cause injury.

5.

Select an installation location which is easy for maintenance.

6.

Pb free solder has a higher melting point than standard solder; typically the melting point is 50°F - 70°F (30°C - 40°C) higher. Please use a 
high temperature solder iron. In case of the soldering iron with temperature control, please set it to 700 ± 20°F (370 ± 10°C). Pb free solder 
will tend to splash when heated too high (about 1100°F / 600°C).