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English

1.  BEFORE INSTALLATION

When unpacking the indoor unit or moving the unit after 

unpacked, hold the hanger brackets (4 places) and do not 

apply force to other parts (particularly refrigerant piping, 

drain piping and resin parts).

•  Make sure to check in advance that the refrigerant to be 

used for installation work is R410A. 
The air conditioner will not operate properly without the 
correct refrigerant.

•  For installation of the outdoor unit and additional refriger-

ant charge, refer to the installation manual attached to the 
outdoor unit.

•  Do not throw away the accessories until the installation 

work is completed.
(1)  Measure the unit with packaging to ensure the unit 

can be carried safely while still packaged.

(2)  Determine the route to carry the unit into the room.
(3)  Do not unpack the unit until it is carried to the installa-

tion location. 
Where unpacking is unavoidable, use a sling of soft 
material or protective plates together with a rope when 
lifting, to avoid damage or scratches to the indoor unit.

•  After the indoor unit is carried into the room, to avoid the 

indoor unit from getting damaged, take measures to protect 
the indoor unit with packing materials until the installation 
begins.

•  Have the customer actually operate the air conditioner 

while looking at the operation manual. 
Instruct the customer how to operate the air conditioner 

(particularly cleaning of the air filter, operation pro cedures, 

and temperature adjustment).

•  For selection of installation location, use the installation 

pattern combined packing material paper as reference.

•  Do not use the air conditioner where in the salty atmo-

sphere such as coastal areas, vehicles, vessels or the 

voltage fluctuation is frequent such as factories.

•  Take off static electricity from the body when carrying out 

wiring and the control box cover is removed.

 

The electric parts may be damaged.

1-1  ACCESSORIES

Check if the following accessories are attached to the 

indoor unit.

Name

(1) Drain 

hose

(2) Metal 

clamp

(3) Washer 

for hanger 

bracket

(4) Clamp

Quantity

1 pc.

1 pc.

8 pcs.

7 pcs.

Shape

Name

(5) Installation 

pattern paper 

(6) Screw 

(M4)

(7) Washer 

fixing plate

Joint insulating  

material

Quantity

1 sheet

4 pcs.

4 pcs.

1 each

Shape

(8) For gas 

piping

(9) For liquid 

piping

Name

Sealing material

Quantity

1 each

1 sheet

1 pc.

Shape

(10) Large

(11) Medium-1

(12) Medium-2

(13) Small

(14)

Name

(15) Installation 

guide

(16) Insulation 

tube

Conduit mounting 

plate

(Miscellaneous)
• Operation 

Manual

• Installation 

Manual

• Warranty

Quantity

1 sheet

1 pc.

1 pc.

Shape

(17) 

• 

Joint insulating material (8) and (9) are for field piping that 
is insulated to a thickness of 3/8 in. (10 mm) or less. If the 
field piping is insulated to a thickness of more than 3/8 in. 
(10 mm), instead of using joint insulating material (8) and 
(9), use insulating material and clamps (both field supply) 
that are suitable for the field piping, and be sure to carry out 

insulation according to the procedure in this manual.  
If not insulated, water leakage may be caused by conden-
sation.

• 

Screws for fixing the panel are attached to the decoration 

panel.

1-2  OPTIONAL ACCESSORIES

•  This indoor unit separately requires a decoration panel and 

remote controllers.

• 

Confirm if a decoration panel shown in the Table 1 is pre

-

pared and meets your model. 
(Refer to the installation manual attached to the decoration 
panel for how to install.)

Table 1

MODEL NAME (FCQ-AAVJU)

Optional decoration panel

18 · 24 · 30 · 36 · 42 · 48

BYCQ54EEFU, BYCQ54EEGFU

Color : Fresh white

•  Install the remote controller to the place where the cus-

tomer has given consent. 
Refer to the catalog for the applicable model. 
(Refer to the installation manual attached to the remote 
controller for how to install.)

01_EN_3P693452-2.indd   1

2022/08/09   16:00:09

Summary of Contents for FCQ18AAVJU

Page 1: ...wner Lire soigneusement ces instructions avant l installation Conserver ce manuel port e de main pour r f rence ult rieure Ce manuel doit tre donn au propri taire de l quipement Lea cuidadosamente est...

Page 2: ...use severe injury or death After completing the installation work check that the refrigerant gas does not leak throughout the system Do not install unit in an area where flammable materials are presen...

Page 3: ...e earth s protection again harmful ultraviolet radiation R410A can contribute to the greenhouse effect if it is released Therefore take proper measures to check for the tightness of the refrigerant pi...

Page 4: ...ity from the body when carrying out wiring and the control box cover is removed The electric parts may be damaged 1 1 ACCESSORIES Check if the following accessories are attached to the indoor unit Nam...

Page 5: ...set the fan speed at thermostat OFF did you explain the set fan speed to the cus tomer Have you handed the operation manual and the installation manual to the customer Points of the operation explana...

Page 6: ...center of the sensing area is located in the center of the product 32 in 800 mm above the floor in case of the infrared presence sensor or 0 in 0 mm above the floor in case of the infrared floor sens...

Page 7: ...pening dimension Make the ceiling opening required for installation at the installation location and carry out refrigerant drain pip ing power supply wiring remote controller wiring and transmission w...

Page 8: ...ndoor unit with four screws 6 At this time put the installation pattern paper 5 to the indoor unit with the triangle marks on the indoor unit and those on the installation pattern paper 5 aligned Inst...

Page 9: ...efrigerant leakage To prevent contamination or moisture from getting into the piping take measures such as pinch ing or taping the piping Do not mix substance other than the specified refrig erant suc...

Page 10: ...n Union joint Refrigerant piping Joint insulating material 9 Accessory Piping holding plate screw 2 locations Gas piping Liquid piping Liquid piping insulating method Indoor unit Indoor unit Clamp 4 A...

Page 11: ...ng of piping due to residue 6 DRAIN PIPING WORK 1 Carry out drain piping Carry out drain piping so that drainage can be ensured Select the piping diameter equal to or larger than except for riser that...

Page 12: ...ot apply excessive force to the attached drain hose 1 by bending or twisting it This could cause water leakage In case of centralized drain piping carry out piping work according to the procedure show...

Page 13: ...terial 14 to perform the thermal insulation of the drain socket Do not connect the drain piping directly to the sewage that gives off ammonia odor The ammonia in the sewage may go through the drain pi...

Page 14: ...or insulate the wirings properly Insulation sleeve Ring type crimp style terminal Wiring Use the required wires connect and fix securely so that external force may not apply to the terminals Use a pr...

Page 15: ...pply wiring grounding wiring X2M Terminal block for remote controller wiring transmission wiring X1M Printed Circuit Board Forced off Remote controller wiring X1M Transmission wiring X1M Remote contro...

Page 16: ...1 system When using 1 remote controller Normal operation Indoor unit Power supply single phase 60Hz 208 230V Outdoor unit Remote controller L1L2 IN D OUT D F1 F2 F1 F2 P1 P2 P1 P2 F1 F2 T1 T2 Control...

Page 17: ...If test operation is carried out before mounting the decora tion panel check the horizontal blade action after the panel is mounted 9 FIELD SETTING Refer to also the installation manual attached to th...

Page 18: ...Differential MODE NO FIRST CODE NO SECOND CODE NO 1 8 F 1 C 12 22 2 01 0 9 F 0 5 C 02 9 7 SETTING AIR DISCHARGE DIRECTION When changing air discharge setting 2 way or 3 way air discharge set the SECON...

Page 19: ...the air conditioner until the interior finish work is completed If the air conditioner is operated the inside of the indoor units may be polluted by substances generated from the coating and adhesives...

Page 20: ...2209 HT 3P693452 2 EM21A045 Daikin Texas Technology Park 19001 Kermier Road Waller TX 77484 U S A 00_CV_3P693452 2 indd 2 2022 07 07 16 49 30...

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