Safety Precautions - Panasonic WH-TD20B3E5 Service Manual

1. Safety Precautions

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Read the following "SAFETY PRECAUTIONS" carefully before installation of Domestic Hot Water Tank Unit
(hereafter referred to as "Tank Unit").
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Electrical works and water installation works must be done by licensed electrician and licensed water system
installer respectively. Be sure to use correct rating and main circuit for the model installed.
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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 due to ignorance or negligence of the
instructions will cause harm or damage, and the seriousness is classified by the following indications.
This indication shows the possibility of causing death or serious injury
WARNING
This indication shows the possibility of causing injury or damage to properties only.
CAUTION
The items to be followed are classified by the symbols:
Symbol with white background denotes item that is PROHIBITED from doing.
Symbol with dark background denotes item that must be carried out.
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Carry out test run to confirm that no abnormality occurs after the installation. 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.
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If there is any doubt about the installation procedure or operation, always contact the authorized dealer for advice
and information.
1. Do not modify the machine, part, material during repairing service.
2. If wiring unit is supplied as repairing part, do not repair or connect the wire even only partial wire break. Exchange the whole wiring unit.
3. Must engage an authorized dealer or specialist installation and servicing. If installation or servicing is defective, it will cause water leakage,
electrical shock or fire.
4. Install according to this installation instructions strictly. If installation is defective, it will cause water leakage, electrical shock or fire.
5. Use the attached accessories parts and specified parts for installation. Otherwise, it will cause the set to fall, water leakage, fire or electrical
shock.
6. Install at a flat horizontal, strong and firm location which is able to withstand the Tank Unit's weight. If the location is slanting. or strength is not
enough the set will fall and cause injury.
7. 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.
8. Only use the supplied and specified installation parts. Else, it may causes Tank Unit vibrate, water leakage, electrical shock or fire.
9. Utilization in an open water system may lead to excessive corrosion of the water piping, water leakage or under pressure to the Tank Unit.
10. Do not make any purchase of electrical parts locally for installation, service, maintenance, etc. This should be done by a licensed
electrician and an authorized dealer. Otherwise, it may cause electrical shock or fire.
11. Do not branch the power from terminal block to heater tap. Overloaded terminal block will cause electrical shock or fire.
12. Keep plastic bag (packaging material) away from small children, it may caused suffocation.
13. For cold water supply has a backflow regulator, check valve or water meter with check valve, provisions for thermal expansion of water in the
hot water system must be provided. Otherwise it will cause water leakage.
14. The piping installation work must be flushed before Tank Unit is connected to remove contaminants. Contaminants may damage the Tank Unit
components.
15. This installation may be subjected to building regulation approval applicable to respective country that may require to notify the local authority
before installation.
16. The Tank Unit must be shipped and stored in upright condition and dry environment. It may laid on its back when being moved into the
building.
17. Work done to the Tank Unit after remove the front plate cover that secured by screws, must be carried out under the supervision of authorized
dealer and licensed.
WARNING
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