Fujitsu LM Series Installation Manual

AIR CONDITIONER
OUTDOOR UNIT
Contents
1. SAFETY PRECAUTIONS ............................................................................1
1.1. IMPORTANT! Please read before starting ............................................1
1.2. Special precautions ..............................................................................1
2. PRODUCT SPECIFICATION .......................................................................2
2.1. Installation tools ....................................................................................2
2.2. Accessories ..........................................................................................2
2.3. Pipe requirement ..................................................................................3
2.4. Power source ........................................................................................3
2.5. Electric requirement ..............................................................................3
2.6. Additional charge ..................................................................................3
2.7. Operating range ....................................................................................3
3. INSTALLATION WORK ...............................................................................3
3.1. Selecting an installation location ..........................................................3
3.2. Installation dimensions .........................................................................4
3.3. Mounting the unit ..................................................................................5
3.4. Drain installation * .................................................................................5
3.5. Removing and replacing parts ..............................................................6
3.6. Pipe installation ....................................................................................6
3.7. Sealing test ...........................................................................................6
3.8. Vacuum process ...................................................................................7
3.9. Additional charging ...............................................................................7
3.10. Electrical wiring ...................................................................................7
4. TEST RUN ...................................................................................................9
5. FINISHING...................................................................................................9
5.1. Installing insulation ...............................................................................9
6. PUMP DOWN ..............................................................................................9
Installation must be performed in accordance with the requirement of NEC and CEC by
authorized personnel only.

1. SAFETY PRECAUTIONS

1.1. 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 warning and caution notices given in this manual.
This symbol refers to a hazard or unsafe practice which can result in
WARNING:
severe personal injury or death.
This symbol refers to a hazard or unsafe practice which can result in
CAUTION:
personal injury and the potential for product or property damage.
• Hazard alerting symbols
INSTALLATION MANUAL
Electrical
Safety/alert
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.

1.2. Special precautions

When Wiring
ELECTRICAL SHOCK CAN CAUSE SEVERE PERSONAL INJURY OR DEATH. ONLY A
QUALIFIED, EXPERIENCED ELECTRICIAN SHOULD ATTEMPT TO WIRE THIS SYS-
TEM.
• 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 wir-
ing diagram and these instructions when wiring. Improper connections and inadequate
earthing (grounding) can cause accidental injury or death.
• Earth (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
...In a Room
Properly insulate any tubing run inside a room to prevent "sweating" that can cause drip-
ping 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 abnormal 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.
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 opening the refrigerant valves.
NOTES:
Depending on the system type, liquid and gas lines may be either narrow or wide. There-
fore, 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 opening 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 fi nish, 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.
PART No. 9319205403
For authorized service personnel only.
.
En-1