Panasonic CS-VZ9SKE Service Manual page 4

When install or relocate air conditioner, do not let any substance other than the specified refrigerant, eg. air etc. mix into refrigeration
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cycle (piping). (Mixing of air etc. will cause abnormal high pressure in refrigeration cycle and result in explosion, injury etc.).
Do not install outdoor unit near handrail of veranda. When installing air-conditioner unit at veranda of high rise building, child may climb
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up to outdoor unit and cross over the handrail and causing accident.
Do not pierce or burn as the appliance is pressurized. Do not expose the appliance to heat, flame, sparks, or other sources of ignition.
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Else, it may explode and cause injury or death.
This equipment must be properly earthed. Earth line must not be connected to gas pipe, water pipe, earth of lightning rod and
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telephone. Otherwise, it may cause electrical shock in case equipment breakdown or insulation breakdown.
19. Keep away from small children, the thin film may cling to nose and mouth and prevent breathing.
Do not use unspecified cord, modified cord, joint cord or extension cord for power supply cord. Do not share the single outlet with
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other electrical appliances. Poor contact, poor insulation or over current will cause electrical shock or fire.
Tighten the flare nut with torque wrench according to specified method. If the flare nut is over-tightened, after a long period, the
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flare may break and cause refrigerant gas leakage.
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For R32 model, use piping, flare nut and tools which is specified for R32 refrigerant. Using of existing (R22) piping, flare nut
and tools may cause abnormally high pressure in the refrigerant cycle (piping), and possibly result in explosion and injury.
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
Thickness or copper pipes used with R32 must be more than 0.8 mm. Never use copper pipes thinner than 0.8 mm.
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It is desirable that the amount of residual oil less than 40 mg/10 m.
During installation, install the refrigerant piping properly before run the compressor. (Operation of compressor without fixing refrigeration
23. piping and valves at opened condition will cause suck-in of air, abnormal high pressure in refrigeration cycle and result in explosion, injury
etc.).
Do not perform flare connection inside a building or dwelling or room, when joining the heat exchanger of indoor unit with
interconnecting piping. Refrigerant connection inside a building or dwelling or room must be made by brazing or welding. Joint
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connection of indoor unit by flaring method can only be made at outdoor or at outside of a building or dwelling or room. Flare
connection may cause gas leak and flammable atmosfere.
During pump down operation, stop the compressor before remove the refrigeration piping. (Removal of refrigeration piping while
25. compressor is operating and valves are opened condition will cause suck-in of air, abnormal high pressure in refrigeration cycle and result
in explosion, injury etc.).
After completion of installation or service, confirm there is no leakage of refrigerant gas. It may generate toxic gas when the refrigerant
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contacts with fire.
27. Ventilate if there is refrigerant gas leakage during operation. It may cause toxic gas when the refrigerant contacts with fire.
Do not use means to accelerate the defrosting process or to clean, other than those recommended by the manufacturer. Any unfit method
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or using incompatible material may cause product damage, burst and serious injury.
29. Be aware that refrigerants may not contain an odour.
30. Do not insert your fingers or other objects into the unit, high speed rotating fan may cause injury.
31. Must not use other parts except original parts describe in catalog and manual.
32. Do not add or replace refrigerant other than specified type. It may cause product damage, burst and injury etc.
Do not install the unit at place where leakage of flammable gas may occur. In case gas leaks and accumulates at surrounding of
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the unit, it may cause fire.
Carry out drainage piping as mentioned in installation instructions. If drainage is not perfect, water may enter the room and damage the
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furniture.
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
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break and cause refrigerant gas leakage.
4. Do not touch outdoor unit air inlet and aluminium fin. It may cause injury.
Select an installation location which is easy for maintenance.
5. Incorrect installation, service or repair of this air conditioner may increase the risk of rupture and this may result in loss damage or injury
and/or property.
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.
6. 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).
WARNING
CAUTION
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