Panasonic U-16GE2E5 Procedures And Technical Points For System Installation

Procedures and Technical Points
for System Installation
New Refrigerant R410A
2-WAY Multi
2-WAY High Power Multi U-16GEP2E5, U-20GEP2E5, U-25GEP2E5
3-WAY Multi
CONTENTS
IMPORTANT! .....................................................1
Please Read Before Starting
SAFETY PRECAUTIONS ..................................2
1. SELECTING THE INSTALLATION
LOCATION ....................................................3
2. PRECAUTIONS FOR INSTALLATION
WORK .........................................................10
3. INSTALLATION PROCEDURE ...................13
4. OPENING THE CLOSED VALVES .............17
5. AFTER INSTALLATION IS COMPLETED ...18
6. ENGINE REPLACEMENT PATHWAY .........18
7. USING A VIBRATION-RESISTANT
FRAME ........................................................18
• The manuals Procedures and Technical Points for Electrical Wiring Work (Outdoors) and Procedures and Technical
Points for Test Run are also attached for the outdoor unit. Be sure to read this manual in conjunction with these
service manuals.

IMPORTANT!

Please Read Before Starting
This air conditioning system meets strict safety and
operating standard. As the installer or service person,
it is an important part of your job to install or service the
system so it operates safety and effi ciently.
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.
• Pay close attention to all warning and caution notices
given in this manual.
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 certifi ed 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.
82664140060000
U-16GE2E5, U-20GE2E5, U-25GE2E5, U-30GE2E5
U-16GF2E5, U-20GF2E5, U-25GF2E5
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
w h i c h c a n r e s u l t i n
personal injury or product
or property damage.
Check that all provided parts are present.
• This manual ("Procedures and Technical Points
for System Installation")
• "Procedures and Technical Points for Electrical
Wiring Work (Outdoors)"
• "Procedures and Technical Points for Test
Run"
• Label showing the actual length of refrigerant
tubing and amount of refrigerant charge
• Seal labels
• Remote power switch label
• Exhaust Drain Hose
SPECIAL PRECAUTIONS
When Wiring
ELECTRICAL SHOCK CAN CAUSE
S E V E R E P E R S O N A L I N J U R Y
OR DEATH. ONLY A QUALIFIED,
EXPERIENCED ELECTRICIAN SHOULD
ATTEMPT TO WIRE THIS SYSTEM.
• Do not supply power to the unit all wiring and tubing are
completed or reconnected and checked.
• Highly dangerous electrical voltage 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.
• Ground the unit following local electrical codes.
• Connect all wiring tightly. Loose wiring may cause
overheating at connection points and a possible fi re
hazard.
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 fi ns on the air conditioner can
cut your fi ngers.
When Installing...
...In a Ceiling or Wall
Make sure the ceiling/wall is strong enough to hold the
unit's weight. It may be necessary to construct a strong
wood or metal frame to provide added support.