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Safely dispose all packing and transportation materials in accordance with federal/state/local laws or ordi-
nances. Packing materials such as nails and other metal or wood parts, including plastic packing mate-
rials used for transportation may cause injuries or death by suffocation.

WARNING

Only qualified personnel must carry out the installation work. Installation must be done in accordance with
this installation manual. Improper installation may result in water leakage, electric shock, or fire.

When installing the unit in a small room, take measures to keep the refrigerant concentration from exceed-
ing allowable safety limits. Excessive refrigerant leaks, in the event of an accident in a closed ambient 
space, can lead to oxygen deficiency.

Use only specified accessories and parts for installation work. Failure to use specified parts may result in 
water leakage, electric shocks, fire, or the unit falling.

Install the air conditioner on a foundation strong enough that it can withstand the weight of the unit. A foun-
dation of insufficient strength may result in the unit falling and causing injuries.

Take into account strong winds, typhoons, or earthquakes when installing. Improper installation may result 
in the unit falling and causing accidents.

Make sure that a separate power supply circuit is provided for this unit and that all electrical work is carried 
out by qualified personnel according to local, state, and national regulations. An insufficient power supply 
capacity or improper electrical construction may lead to electric shocks or fire.

Make sure that all wiring is secured, that specified wires are used, and that no external forces act on the ter-
minal connections or wires. Improper connections or installation may result in fire.

When wiring, position the wires so that the control box cover can be securely fastened. Improper positioning 
of the control box cover may result in electric shocks, fire, or the terminals overheating.

Before touching electrical parts, turn off the unit.

Be sure to install a ground fault circuit interrupter if one is not already available. This helps prevent electrical 
shocks or fire.

Securely fasten the outdoor unit terminal cover (panel). If the terminal cover/panel is not installed properly, 
dust or water may enter the outdoor unit causing fire or electric shock.

When installing or relocating the system, keep the refrigerant circuit free from substances other than the 
specified refrigerant (R410A) such as air. Any presence of air or other foreign substance in the refrigerant 
circuit can cause an abnormal pressure rise or rupture, resulting in injury.

Do not change the setting of the protection devices. If the pressure switch, thermal switch, or other pro-
tection device is shorted and operated forcibly, or parts other than those specified by Daikin are used, fire 
or explosion may occur.

CAUTION

Do not touch the switch with wet fingers. Touching a switch with wet fingers can cause electric shock.

Do not allow children to play on or around the unit to prevent injury.

Do not touch the refrigerant pipes during and immediately after operation as the refrigerant pipes may be 
hot or cold, depending on the condition of the refrigerant flowing through the refrigerant piping, compressor, 
and other refrigerant cycle parts. Your hands may suffer burns or frostbite if you touch the refrigerant pipes. 
To avoid injury, give the pipes time to return to normal temperature or, if you must touch them, be sure to 
wear proper gloves.

Heat exchanger fins are sharp enough to cut.
To avoid injury wear glove or cover the fins when working around them.

Install drain piping to proper drainage. Improper drain piping may result in water leakage and property dam-
age.

Insulate piping to prevent condensation.

Be careful when transporting the product.

Do not turn off the power immediately after stopping operation. Always wait for at least 5 minutes before 
turning off the power. Otherwise, water leakage may occur.

Do not use a charging cylinder. Using a charging cylinder may cause the refrigerant to deteriorate.

01_EN_3P161684-6K.fm  Page 2  Friday, September 16, 2011  10:00 PM

Summary of Contents for FCQ18PAVJU

Page 1: ...tions carefully before installation Keep this manual in a handy place for future reference Lire soigneusement ces instructions avant l installation Conserver ce manuel port e de main pour r f rence ul...

Page 2: ...jury WARNING Indicates a potentially hazardous situation which if not avoided could result in death or serious injury CAUTION Indicates a potentially hazardous situation which if not avoided may resul...

Page 3: ...g Before touching electrical parts turn off the unit Be sure to install a ground fault circuit interrupter if one is not already available This helps prevent electrical shocks or fire Securely fasten...

Page 4: ...nimals making contact with electrical parts can cause malfunctions smoke or fire Instruct the customer to keep the area around the unit clean NOTE Install the power supply and control wires for the in...

Page 5: ...air contains high levels of salt such as that near the ocean and where voltage fluctuates greatly such as that in factories Also in vehicles or vessels 2 ACCESSORIES Check the following accessories a...

Page 6: ...outdoor unit fully installed The unit may malfunction or the compo nents burn out Is the gas leak test finished It may result in insufficient cooling Is the unit fully insulated Condensate water may d...

Page 7: ...s approval which matches the following conditions A location from which cool warm air will reach the whole room A location with no objects blocking the air passage A location where drainage can be don...

Page 8: ...have to be shut off if two three or four corner shut off directions are selected See the shut off materials sold separately instal lation manual for details 4 Use suspension bolts for installation Ch...

Page 9: ...to 6 REFRIGERANT PIPING WORK 7 DRAIN PIPING WORK and 8 ELECTRIC WIRING WORK After making an opening in the ceiling it may be necessary to reinforce ceiling beams to keep the ceiling level and to prev...

Page 10: ...uilder or carpenter for details The center of the ceiling opening is indicated on the paper pattern for installation The center of the unit is indicated on the triangular mark to the unit bottom and o...

Page 11: ...and 1 3 in 1 For new ceilings 2 3 Perform steps 1 4 1 5 in 1 For new ceilings 6 REFRIGERANT PIPING WORK For refrigerant piping of outdoor units see the installation manual attached to the outdoor unit...

Page 12: ...ecting pipes to from the unit Refer to Fig 14 Refer to Table 3 for the dimensions of flare nut spaces When connecting the flare nut apply ester oil or ether oil to the flare section outside only and s...

Page 13: ...ine Exposed piping may cause condensation or burns on contact Pipe size Further tightening angle Recommended arm length of tool 1 4 60 to 90 degrees Approx 6in 3 8 60 to 90 degrees Approx 8in 1 2 30 t...

Page 14: ...ig 17 7 DRAIN PIPING WORK 1 Rig drain piping As for drain work perform piping in such a manner that water can be drained properly Employ a pipe with either the same diameter or with the diameter large...

Page 15: ...stall according to the procedure shown below Select converging drain pipes whose gauge is suitable for the operating capacity of the unit 2 After piping work is finished check if drainage flows smooth...

Page 16: ...ater into the drain pan through the blow off mouth on the left hand side of the drain socket Make sure not to pour water over the drain pump or any electric parts including those of the drain pump Whe...

Page 17: ...apable of shutting down power supply to the entire system must be installed Refer to the installation manual attached to the outdoor unit for the size of power supply electric wire con nected to the o...

Page 18: ...ound wire to the ground terminal In doing this pull the wires inside through the hole and fix the wires securely with the included clamp 4 2 points Remote controller wires not necessary for slave unit...

Page 19: ...ectrical external noise 5 For remote controller wiring refer to the INSTALLATION MANUAL OF REMOTE CONTROLLER attached to the remote controller 6 Never connect power supply wiring to the terminal block...

Page 20: ...rminal block for remote controller Control box cover P1 P2 Wiring diagram Backside of control box cover Remote controller wiring Power supply terminal block Insulation tube 16 3P Remote controller wir...

Page 21: ...er supply ground and other power wiring at least 2in so that they do not pass through the same place together Proximity may cause electrical interference malfunctions and breakage 9 2 Wiring example W...

Page 22: ...P2 F1 F2 T1 T2 Power supply 208 230V 1 60Hz Control box Outdoor unit Indoor unit Remote controller L1 L2 Fig 30 P1 P2 P1 P2 For use with 2 remote controllers L1L2 IN D OUT D F1 F2 F1 F2 P1 P2 F1 F2 T1...

Page 23: ...off the upper part The remote controller PC board is attached to the upper part of remote controller Refer to Fig 31 2 Turn the main sub changeover switch on one of the two remote controller PC board...

Page 24: ...11 FIELD SETTING and 12 TEST RUN first Refer to the installation manual attached to the decoration panel After installing the decoration panel ensure that there is no space between the unit body and...

Page 25: ...2 The figure of the ceiling height is for the all round outlet For the settings for four direction part of corner closed off three direction and two direction outlets see the installation manual supp...

Page 26: ...e 6 is displayed there may be a problem with the wiring or power supply so check the wiring again Table 6 If the decoration panel is installed on the indoor unit during the test run check the operatio...

Page 27: ...3P161684 6K EM11A061 1110 1645 Wallace Drive Suite 110 Carrollton TX 75006 USA info daikinac com www daikinac com HT 00_CV_3P161684 6K fm Page 2 Friday September 2 2011 4 00 PM...

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