Special Precautions - Panasonic U-8ME1E81 Service Manual

IMPORTANT!
Please Read Before Starting
This air conditioning system meets strict safety and
operating standards. As the installer or service person,
it is an important part of your job to install or service the
system so it operates safely and efficiently.
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.
Observe all local, state, and national electrical codes.
This product is intended for professional use.
Permission from the power supplier is required when
installing the U-8ME1E81 outdoor unit that is 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 equals 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.
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 supply with a short-circuit power Ssc
greater than or equals to the values corresponding to
each model as shown in the table below.
U-10ME1E81 U-12ME1E81 U-14ME1E81 U-16ME1E81 U-18ME1E81 U-20ME1E81
Ssc 1,150 kVA 1,550 kVA 1,550 kVA 1,550 kVA 1,550 kVA 1,550 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-10ME1E81 U-12ME1E81 U-14ME1E81 U-16ME1E81 U-18ME1E81 U-20ME1E81
Zmax
— 0.290 0.290
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 practice which can result in
CAUTION
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.
0.290 0.290 0.290

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-8ME1E81 U-10ME1E81 U-12ME1E81 U-14ME1E81
Circuit
25 A
breaker
U-16ME1E81
Circuit
45 A
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.
i i
When Wiring
25 A 35 A 35 A
U-18ME1E81 U-20ME1E81
50 A 50 A