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AIR CONDITIONER
INDOOR UNIT (Wall Mounted Type)

INSTALLATION MANUAL

Contents

1. SAFETY 

PRECAUTIONS 

.................................................................. 1

2. ABOUT 

THIS 

PRODUCT................................................................... 2

3. GENERAL 

SPECIFICATIONS 

........................................................... 2

4.  SELECTING THE INSTALLATION LOCATION ................................. 3

5. INSTALLATION 

WORK 

..................................................................... 3

6. ELECTRICAL 

WIRING 

..........................................................................5

7. FINISHING 

........................................................................................ 6

8.  FRONT PANEL REMOVAL AND INSTALLATION ............................. 7

9.  

REMOTE CONTROLLER INSTALLATION ........................................ 7

10.  OPTIONAL KIT INSTALLATION ........................................................ 7

11. FUNCTION 

SETTING........................................................................ 9

12. TEST RUN 

........................................................................................11

13. CUSTOMER GUIDANCE 

.................................................................11

14. ERROR CODES 

...............................................................................11

PART No. 9318739183

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 ef

fi

 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.

 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 prop-
erty 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 certi

fi

 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 an Area with High Winds

Securely anchor the outdoor unit down with bolts and a metal frame.
Provide a suitable air baf

fl

 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.

 WARNING

Never touch electrical components immediately after the power supply has been turned 
off. Electric shock may occur. After turning off the power, always wait 5 minutes before 
touching electrical components.

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.

 CAUTION

Do not attempt to install the air conditioner or a part of the air conditioner by yourself.

This unit must be installed by quali

fi

 ed personnel with a capacity certi

fi

 cate for handling 

refrigerant 

fl

 uids. Refer to regulation and laws in use on installation place.

This unit is part of a set constituting an air conditioner. It must not be installed alone or 
with non-authorized by the manufacturer.

Always use a separate power supply line protected by a circuit breaker operating on all 
wires with a distance between contact of 1/8 in. (3 mm) for this unit.

The unit must be correctly earthed (grounded) and the supply line must be equipped 
with a differential breaker in order to protect the persons.

The units are not explosion proof and therefore should not be installed in explosive 
atmosphere.

When moving, consult authorized service personnel for disconnection and installation 
of the unit.

Do not place any other electrical products or household belongings under indoor unit or 
outdoor unit. 
Dripping condensation from the unit might get them wet, and may cause damage or 
malfunction of your property.

All Fujitsu General products are manufactured to metric units and tolerances. United 
States customary units are provided for reference only. In cases where exact dimen-
sions and tolerances are required, always refer to metric units.

For authorized service personnel only.

• Installation must be performed in accordance with the requirement of NEC and CEC 

by authorized personnel only.

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Summary of Contents for 9318739183

Page 1: ... 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 floors In an Area with High Winds Securely anchor the outdoor unit down with bolts and a metal frame Provide a suitable air baffle In a Snowy Area for Heat Pump type Systems Install the outdoor unit on a raised plat...

Page 2: ...gerant R410A have a different charging port thread diameter to pre vent erroneous charging with conventional refrigerant R22 and for safety Therefore check beforehand The charging port thread diameter for R410A is 1 2 20 UNF Be more careful that foreign matter oil water etc does not enter the piping than with refrigerant R22 models Also when storing the piping securely seal the opening by pinching...

Page 3: ...s or flammable dust or volatile inflammables such as paint thinner or gasoline If gas leaks and settles around the unit it can cause a fire Area where animals may urinate on the unit or ammonia may be generated Do not use the unit for special purposes such as storing food raising animals grow ing plants or preserving precision devices or art objects It can degrade the quality of the preserved or s...

Page 4: ...ping cut off the piping outlet cutting groove with a hacksaw CAUTION Insert the drain hose and drain cap into the drain port making sure that it comes in contact with the back of the drain port and then mount it If the drain hose is not connected properly leaking will occur Attach the Drain hose insulation to the drain hose Drain hose insulation Drain hose For left piping and left rear piping alig...

Page 5: ...ct with a flame CAUTION Connect the piping so that the control box cover can easily be removed for servic ing when necessary In order to prevent water from leaking into the control box make sure that the pip ing is well insulated When the flare nut is tightened properly by your hand hold the body side coupling with a wrench then tighten with a torque wrench See the table below for the flare nut ti...

Page 6: ... m M4 screw 11 to 16 1 2 to 1 8 CAUTION Attach the cable clamp firmly by holding the connection cable and make sure that the clamp is fixed securely Incomplete attachment of the cable clamp might cause a malfunction of the open panel Match the terminal block numbers and connection cable colors with those of the outdoor unit Erroneous wiring may cause burning of the electric parts Connect the conne...

Page 7: ...or simple remote controller Recommended cable length of wired remote controller is 32 ft 10 m Make sure to do insulate of connecting part when extended the cable 10 2 Remote controller cable modification 1 Use a tool to cut off the terminal on the end of the remote controller cable and then remove the insulation from the cut end of the cable 2 Connect the remote controller cable and connecting cab...

Page 8: ...onnecting cable to control board connector 1 Pass the cable from the hole in the back of indoor unit 2 Connect the cable to the control board connector 3 Hook the cable to the rib connect the cable rib CN6 CN16 CN14 PCB hole Option type Connector No Wired remote controller Simple remote controller CN6 External input CN14 External output CN16 4 Use cable clamper and screw to fasten the cable of wir...

Page 9: ...do not know the air conditioner custom code setting try each of the custom codes A B C D until you find the code which operates the air conditioner STEP 2 Selecting the Function Number and Setting Value 1 Press the SET TEMP buttons to select the function number Press the MODE button to switch between the left and right digits 2 Press the FAN button to proceed to setting the value Press the FAN but...

Page 10: ...nges When High insulation 01 is selected Overheating overcooling is prevented at the start up All room temp control settings Function 30 31 92 93 will reset to No correction 0 0 F 0 0 C Factory setting Function Number Setting Value Setting Description 95 00 Standard insulation 01 High insulation Room temperature control for indoor unit sensor Depending on the installed environment correction of th...

Page 11: ...ress the test run button with the tip of a ballpoint pen etc Transmitter section TEST RUN button To end test operation press the remote controller START STOP button When the air conditioner is running by pressing the TEST RUN button the OPERA TION Lamp and TIMER Lamp will simultaneously flash slowly Using the wired remote control Option For the operation method refer to the operating manual 1 Stop...

Page 12: ... temp sensor error 8 4 Current sensor error 8 6 Discharge pressure sensor error Suction pressure sensor error High pressure switch error 9 4 Trip detection 9 5 Compressor rotor position detection error 9 7 Outdoor unit fan motor error 9 9 4 way valve error 10 1 Discharge temp error 10 3 Compressor temp error 10 4 High pressure error 10 5 Low pressure error 13 2 Branch boxes error Flexible Multi Di...

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