U-4LE1E5, U-4LE1E8, U-5LE1E5, U-5LE1E8, U-6LE1E5, U-6LE1E8 (serv.man2) - Panasonic Air Conditioner Service Manual (repair manual). Page 2

This air conditioner must be installed by the sales dealer 
or installer.
This information is provided for use only by authorized 
persons.

  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

U-5LE1E5

U-6LE1E5

Ssc

350 kVA

400 kVA

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-4LE1E5

U-5LE1E5

U-6LE1E5

Zmax

0.298 

Ω

0.298

Ω

0.298

Ω

  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 
personal injury or death.

This symbol refers to a hazard or unsafe 
practice which can result in personal injury 
or product or property damage.

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.

The manufacturer shall in no way be responsible for 
improper installation or maintenance service, including 
failure to follow the instructions in this document. 

•  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

U-5LE1E5

U-6LE1E5

Circuit breaker

30 A

40 A

40 A

U-4LE1E8

U-5LE1E8

U-6LE1E8

Circuit breaker

20 A

20 A

20 A

•  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.

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.

Mini_VRF_eng.indd   2

2011/08/25   11:41:37

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2014/08/26   17:37:46

2014/08/26   17:37:46