Panasonic U-20GES3E5 Manual Del Usuario

Procedures and Technical Points
for System Installation
New Refrigerant R410A
2WAY Multi
The U-20GES3E5 is a specialized GHP outdoor unit for multi-system configurations that incorporate a Gas heat pump air
conditioner (GHP) and an Electrical heat pump air conditioner (EHP).
The U-10MES2E8 is a specialized EHP outdoor unit for multi-system configurations that incorporate a Gas heat pump air
conditioner (GHP) and an Electrical heat pump air conditioner (EHP).
CONTENTS
IMPORTANT! .....................................................1
Read Before Starting
SAFETY PRECAUTIONS ..................................3
CHARACTERISTICS AND REQUESTS ...........4
1. SELECTING THE INSTALLATION
LOCATION ....................................................5
2. PRECAUTIONS FOR INSTALLATION
WORK .........................................................10
3. INSTALLATION PROCEDURE ...................15
4. OPENING THE SHUT-OFF VALVES ..........25
5. HOT WATER PIPING WORK OF THE GHP
OUTDOOR UNIT .........................................25
6. AFTER INSTALLATION IS COMPLETED ...26
7. ENGINE REPLACEMENT PATHWAY .........27
8. USING A VIBRATION-RESISTANT
FRAME ........................................................27
• The manuals Procedures and Technical Points for Electrical Wiring Work (Outdoors) and Procedures
and Technical Points for Test Run are also attached for the U-20GES3E5 outdoor unit. And the manual
INSTALLATION INSTRUCTIONS are also attached for the U-10MES2E8 outdoor unit. Be sure to read this
manual in conjunction with these service manuals.
IMPORTANT!
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 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 installation codes.
• Pay close attention to all warning and caution notices
given in this manual.
• After the work is completed, be sure to provide the
user with a user manual and a brief explanation of the
operating procedures.
This symbol refers to a
hazard or unsafe practice
WARNING
which can result in severe
personal injury or death.
This symbol refers to a
hazard or unsafe practice
CAUTION 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.
ACXF60-31380
U-20GES3E5, U-10MES2E8
 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
• Balance tube fastening rubber
SPECIAL PRECAUTIONS
• Do not supply power to the unit all
• Highly dangerous electrical voltage
• The unit must be connected
• Connect all wiring tightly. Loose wiring
When Wiring
ELECTRICAL SHOCK CAN
CAUSE SEVERE PERSONAL
INJURY OR DEATH. ONLY A
QUALIFIED, EXPERIENCED
ELECTRICIAN SHOULD
ATTEMPT TO WIRE THIS
SYSTEM.
wiring and tubing are completed or
reconnected and checked.
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.
to the earth according to local
electrical code.
may cause overheating at connection
points and a possible fire hazard.