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INSTALLATION MANUAL
PART NO. 9374342198-02
INDOOR UNIT (Duct type)
Contents
1.
SAFETY PRECAUTIONS ......................................................................................... 1
1.1. IMPORTANT! Please read before starting ................................................................ 1
1.2. SPECIAL PRECAUTIONS ........................................................................................ 1
2.
ABOUT THE UNIT .................................................................................................... 2
2.1. Precautions for using R410A refrigerant.................................................................... 2
2.2. Special tool for R410A ............................................................................................... 2
2.3. Accessories ............................................................................................................... 2
2.4. Optional parts ............................................................................................................ 3
3.
INSTALLATION WORK ............................................................................................. 3
3.1. Selecting an installation location ............................................................................... 3
3.2A. Installation dimensions (Ceiling concealed type) .................................................... 3
3.3A. Installation the unit (Ceiling concealed type)........................................................... 4
3.3B. Install the unit (Wall mounted type/ Floor standing concealed type) ....................... 6
4.
PIPE INSTALLATION ................................................................................................ 7
4.1. Selecting the pipe material ........................................................................................ 7
4.2. Pipe requirement ....................................................................................................... 7
4.3. Flare connection (Pipe connection) ........................................................................... 7
4.4. Installing heat insulation ............................................................................................ 8
5.
INSTALLING DRAIN PIPES ..................................................................................... 8
5.1A. When drain pump is used ....................................................................................... 8
5.1B. When drain pump is not used (Natural drainage) ................................................... 9
5.2. Install the drain pipe .................................................................................................. 9
6.
ELECTRICAL WIRING ............................................................................................ 10
6.1. Electrical requirement .............................................................................................. 11
6.2. Wiring method ......................................................................................................... 11
6.3. Unit wiring ................................................................................................................ 12
6.4. Connection of wiring ................................................................................................ 12
6.5. External input and external output (Optional parts) ................................................. 13
6.6. Remote sensor (Optional parts) .............................................................................. 15
6.7. Receiver unit (Optional parts) .................................................................................. 16
6.8. Auto louver grille (Optional parts) ............................................................................ 16
6.9. Optional parts cable binding .................................................................................... 16
7.
FIELD SETTING ..................................................................................................... 16
7.1. Setting the address.................................................................................................. 17
7.2. Custom code setting ................................................................................................ 17
7.3. Static pressure mode............................................................................................... 18
7.4. Switching of drainage function................................................................................. 18
7.5. Switching of airfl ow direction louver function ........................................................... 18
7.6. Function setting ....................................................................................................... 18
8.
TEST RUN .............................................................................................................. 19
8.1. Test run using PCB (Outdoor unit) ........................................................................... 19
8.2. Test run using Remote Controller ............................................................................ 19
9.
CHECK LIST ........................................................................................................... 19
10. ERROR CODES ..................................................................................................... 19
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 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 product or property damage.
• Hazard alerting symbols
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.
En-1
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 SYSTEM.
•
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 dripping
and water damage to walls and fl oors.
...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.
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.
Never touch electrical components immediately after the power supply has
been turned off. Electrical shock may occur. After turning off the power, always
wait 5 minutes or more before touching electrical components.
•
Be sure to read this
Manual thoroughly before installation.
•
The warnings and precautions indicated in this Manual contain important information per-
taining to your safety. Be sure to observe them.
•
Hand this Manual, together with the Operating Manual, to the customer. Request the cus-
tomer to keep them on hand for future use, such as for relocating or repairing the unit.
Request your dealer or a professional installer to install the indoor unit in accordance
with this Installation Manual.
An improperly installed unit can cause serious accidents such as water leakage, electric
shock, or fi re.
If the indoor unit is installed in disregard of the instructions in the Installation Manual, it
will void the manufacturer's warranty.
Do not turn ON the power until all work has been completed.
Turning ON the power before the work is completed can cause serious accidents such
as electric shock or fi re.
If refrigerant leaks while work is being carried out, ventilate the area.
If the refrigerant comes in contact with a fl ame, it produces a toxic gas.
Installation work must be performed in accordance with national wiring standards by
authorized personnel only.
Except for EMERGENCY, never turn off main as well as sub breaker of the indoor units
during operation. It will cause compressor failure as well as water leakage.
First, stop the indoor unit by operating the control unit, converter or external input de-
vice and then cut the breaker. Make sure to operate through the control unit, converter
or external input device.
When the breaker is designed, locate it at a place where the users cannot start and stop
in the daily work.
DANGER
WARNING