Special Precautions; Please Read Before Starting - Panasonic U-4LE1E5 Service Manual

IMPORTANT!

Please Read Before Starting

This air conditioner must be installed by the sales dealer
or installer.
This information is provided for use only by authorized
persons.
For safe installation and trouble-free operation, you must:
Carefully read this instruction booklet before beginning.
Follow each installation or repair step exactly as shown.
This air conditioner shall be installed in accordance with
National Wiring Regulations.
This product is intended for professional use.
Permission from the power supplier is required when
installing the U-4LE1E8, U-5LE1E8, U-6LE1E8,
outdoor units that are connected to a 16 A distribution
network.
This equipment complies with EN/IEC 61000-3-12
provided that the short-circuit power Ssc is greater
than or equal to the following table at the interface point
between the user's supply and the public system.
It is the responsibility of the installer or user of
the equipment to ensure, by consultation with the
distribution network operator if necessary, that the
equipment is connected only to a supply with a short-
circuit power Ssc greater than or equal to the value in
the table.
U-4LE1E5
Ssc 350 kVA
This equipment complies with EN/IEC 61000-3-11
provided that the system impedance Zmax is less than
or equal to the values corresponding to each model as
shown in the table below at the interface point between
the user's supply and the public system. Consult with
the supply authority for the system impedance Zmax.
U-4LE1E5
0.298 Ω
Zmax
Pay close attention to all warning and caution notices
given in this manual.
This symbol refers to a hazard or unsafe
practice which can result in severe
WARNING
personal injury or death.
This symbol refers to a hazard or unsafe
CAUTION practice which can result in personal injury
or product or property damage.
If Necessary, Get Help
These instructions are all you need for most installation
sites and maintenance conditions. If you require help for a
special problem, contact our sales/service outlet or your
certified dealer for additional instructions.
In Case of Improper Installation
The manufacturer shall in no way be responsible for
improper installation or maintenance service, including
failure to follow the instructions in this document.
U-5LE1E5 U-6LE1E5
400 kVA 550 kVA
U-5LE1E5 U-6LE1E5
0.298 Ω 0.298 Ω

SPECIAL PRECAUTIONS

WARNING
ELECTRICAL SHOCK CAN CAUSE
SEVERE PERSONAL INJURY OR DEATH.
ONLY A QUALIFIED, EXPERIENCED
ELECTRICIAN SHOULD ATTEMPT TO
WIRE THIS SYSTEM.
• Do not supply power to the unit until all wiring and tubing
are completed or reconnected and checked.
• Highly dangerous electrical voltages are used in this
system.
Carefully refer to the wiring diagram and these
instructions when wiring. Improper connections and
inadequate grounding can cause accidental injury or
death.
• Connect all wiring tightly. Loose wiring may cause
overheating at connection points and a possible fire
hazard.
• Provide a power outlet to be used exclusively for each
unit.
• ELCB must be incorporated in the fixed wiring.
Circuit breaker must be incorporated in the fixed wiring
in accordance with the wiring regulations.
U-4LE1E5
Circuit breaker 30 A
U-4LE1E8
20 A
Circuit breaker
• Provide a power outlet exclusively for each unit, and
full disconnection means having a contact separation
in all poles must be incorporated in the fixed wiring in
accordance with the wiring rules.
• To prevent possible hazards from insulation failure,
the unit must be grounded.
When Transporting
Be careful when picking up and moving the indoor and
outdoor units. Get a partner to help, and bend your knees
when lifting to reduce strain on your back. Sharp edges
or thin aluminum fins on the air conditioner can cut your
fingers.
i
When Wiring
U-5LE1E5 U-6LE1E5
40 A 40 A
U-5LE1E8 U-6LE1E8
20 A 20 A