Safety Precautions - Panasonic CU-3Z52TBE Service Manual

1. Safety Precautions


Read the following "SAFETY PRECAUTIONS" carefully before installation.

Electrical work must be installed by a licensed electrician. Be sure to use the correct rating of the power plug and
main circuit for the model to be installed.

The caution items stated here must be followed because these important contents are related to safety. The
meaning of each indication used is as below. Incorrect installation or servicing due to ignoring of the instruction
will cause harm or damage, and the seriousness is classified by the following indications.
WARNING
CAUTION

The items to be followed are classified by the symbols:

Carry out test run to confirm that no abnormality occurs after the servicing. Then, explain to user the operation,
care and maintenance as stated in instructions. Please remind the customer to keep the operating instructions for
future reference.
Do not use means to accelerate the defrosting process or to clean, other than those recommended by the manufacturer. Any
1.
unfit method or using incompatible material may cause product damage, burst and serious injury.
Do not install outdoor unit near handrail of veranda. When installing air-conditioner unit on veranda of a high rise building, child
2.
may climb up to outdoor unit and cross over the handrail causing an accident.
Do not use unspecified cord, modified cord, joint cord or extension cord for power supply cord. Do not share the single outlet
3. with other electrical appliances.
Poor contact, poor insulation or over current will cause electrical shock or fire.
The appliance shall be stored in a well ventilated room with floor area larger than Amin (m
continuously operating ignition sources.
4.
Keep away from open flames, any operating gas appliances or any operating electric heater. Else, it may explode and cause
injury or death.
5. Do not tie up the power supply cord into a bundle by band. Abnormal temperature rise on power supply cord may happen.
6.
Do not insert your fingers or other objects into the unit, high speed rotating fan may cause injury.
7.
Do not sit or step on the unit, you may fall down accidentally.
The appliance shall be installed, and/or operated in a room with floor area larger than Amin (m
8. from ignition sources, such as heat/sparks/open flame or hazardous areas such as gas appliances, gas cooking, reticulated gas
supply systems or electric cooking appliances, etc.
9. Keep plastic bag (packaging material) away from small children, it may cling to nose and mouth and prevent breathing.
When installing or relocating air conditioner, do not let any substance other than the specified refrigerant, eg. air etc mix into
10. refrigeration cycle (piping).
Mixing of air etc. will cause abnormal high pressure in refrigeration cycle and result in explosion, injury etc.
Do not pierce or burn as the appliance is pressurized. Do not expose the appliance to heat, flame, sparks, or other sources of
11.
ignition. Else, it may explode and cause injury or death.
12. Do not add or replace refrigerant other than specified type. It may cause product damage, burst and 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
13.
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 atmosphere.

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.
14.

Thickness or copper pipes used with R32 must be more than 0.8 mm. Never use copper pipes thinner than 0.8 mm.

It is desirable that the amount of residual oil less than 40 mg/10 m.
Engage authorized dealer or specialist for installation and servicing. If installation and servicing done by the user is incorrect, it will
15.
cause water leakage, electrical shock or fire.
For refrigeration system work, install according to this installation instructions strictly. If installation is defective, it will cause water
16.
leakage, electrical shock or fire.
Use the attached accessories parts and specified parts for installation. Otherwise, it will cause the set to fall, water leakage, fire or
17.
electrical shock.
AMP Air Conditioning
This indication shows the possibility of causing death or serious injury.
This indication shows the possibility of causing injury or damage to properties only.
This symbol denotes item that is PROHIBITTED from doing.
WARNING
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) [refer Table A] and without any
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) [refer Table A] and keep away