Fujitsu AOU9RLF Installation Manual

SPLIT TYPE ROOM AIR CONDITIONER
INSTALLATION MANUAL
(P/N 9379069052-03)
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 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 danger, warning, and caution notices given
in this manual.
WARNING: This symbol refers to a hazard or unsafe practice which
can result in severe personal injury or death.
CAUTION: This symbol refers to a hazard or unsafe practice which
can result in personal injury and the potential for prod-
uct or property damage.
 Hazel alerting symbols
Electrical
Safety / alert
If Necessary, Get Help
These instructions are all you need for most installation sites and main-
tenance 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 installa-
tion or maintenance service, including failure to follow the instructions in
this document.
SPECIAL PRECAUTIONS
When Wiring
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 com-
pleted or reconnected and checked.
 Highly dangerous electrical voltages are used in this system. Care-
fully refer to the wiring diagram and these instructions when wiring.
Improper connections and inadequate grounding can cause acciden-
tal injury or death.
 Ground the unit following local electrical codes.
 Connect all wiring tightly. Loose wiring may cause overheating at con-
nection 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 con-
ditioner 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 pro-
vide added support.
...In a Room
Properly insulate any tubing run inside a room to prevent "sweating"
that can cause dripping and water damage to walls and fl oors.
...In Moist or Uneven Locations
Use a raised concrete pad or concrete blocks to provide a solid, level
foundation for the outdoor unit. This prevents water damage and ab-
normal vibration.
...In an Area with High Winds
Securely anchor the outdoor unit down with bolts and a metal frame.
Provide a suitable air baffl e.
...In a Snowy Area (for Heat Pump-type Systems)
Install the outdoor unit on a raised platform that is higher than drifting
snow. Provide snow vents.
When Connecting Refrigerant Tubing
 Keep all tubing runs as short as possible.
 Use the fl are method for connecting tubing.
 Apply refrigerant lubricant to the matching surfaces of the fl are and
union tubes before connecting them, then tighten the nut with a
torque wrench for a leak-free connection.
 Check carefully for leaks before starting the test run.
NOTE:
Depending on the system type, liquid and gas lines may be either
narrow or wide. Therefore, to avoid confusion the refrigerant tubing
for your particular model is specifi ed as either "small" or "large" rather
than as "liquid" or "gas".
When Servicing
 Turn the power OFF at the main circuit breaker panel before open-
ing the unit to check or repair electrical parts and wiring.
 Keep your fi ngers and clothing away from any moving parts.
 Clean up the site after you finish, remembering to check that no
metal scraps or bits of wiring have been left inside the unit being
serviced.
 After installation, explain correct operation to the customer, using
the operating manual.
English