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7

English

<05-48 type>

Suction flange

Replacement

Chamber cover

<54 type>

Replacement

Suction flange

Chamber cover

Note)
1. Be sure to remove chamber cover one side by  

one side.

2. For this model, maintenance of the control box 

through side is only available. 
Maintenance through bottom is not available.

Fig. 5

5.  INSTALLATION OF INDOOR UNIT

Depending on the optional accessories, it may be easier 

to attach them before installing the indoor unit. Refer to 

also the installation manual attached to the optional ac-

cessories.

For installation, use the attached and specified accesso

-

ries.

(1) 

Install the indoor unit temporarily.

• 

Fix the hanger bracket to the suspension bolt.

 

Make sure to securely fix the hanger bracket with the 

nut and the washer for hanger bracket (11) from the up-
per and lower side. 

(Refer to Fig. 6)

 

If the washer clamp (9) is used,  the upper side washer 
for hanger bracket (11) may be protected from falling 
off. 

(Refer to Fig. 7)

[ Fix the hanger bracket ]

Field supply

Tighten
 (Double nut)

Washer for 
hanger bracket (11)
(Accessory)

Fig. 6

[ Washer fixing ]

Washer 
clamp (9) 

(Accessory)

Insert

Upper nut

Washer for 

hanger bracket (11)

(Accessory)

Fig. 7

• 

Keep the discharge covered with a protective sheet to pre-
vent weld spatter and other foreign materials from entering 
the indoor unit and damaging the resin drain pan. 
(If holes or cracks are generated in the resin drain pan, 
water can leak.)

(2) 

Adjust so that the unit is properly positioned.

(3) 

Check the level of the unit. 

(Refer to Fig. 8)

(4) 

Remove the washer clamp (9) used for preventing the 
washer for hanger bracket (11) from dropping and tighten 
the upper side nut.

Hanger bracket

Bottom of 

unit

Level

Vinyl tube

[Maintaining horizontality]

Feed water into the tube and 
set the indoor unit to the water 
levels on the left and right.

Fig. 8

 CAUTION

•  Install the indoor unit leveled.

 

If the indoor unit is inclined and the drain piping side gets 

high, it may cause malfunction of float switch and result in 

water leakage.

•  Attach nuts on the upper and lower side of hanger 

bracket.

 

If there is no upper nut and the lower nut is over-tightened, 
the hanger bracket and the top plate will deform and cause 
abnormal sound.

• 

Do not insert materials other than that specified into 

the clearance between the hanger bracket and the 

washer for hanger bracket (11).

 

Unless the washers are properly attached, the suspen-
sion bolts may come off from the hanger bracket.

 WARNING

The indoor unit must be securely installed on a 

place that can withstand the weight.

 

If the strength is insufficient, the indoor unit may fall 

down and cause injuries.

01_EN_3P493125-6E.indd   7

2022/08/03   10:36:09

Summary of Contents for FXMQ15TBVJU

Page 1: ...for future reference This manual should be left with the equipment owner Lire soigneusement ces instructions avant l installation Conserver ce manuel port e de main pour r f rence ult rieure Ce manuel...

Page 2: ...ere 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 present due t...

Page 3: ...Therefore take proper measures to check for the tightness of the refrigerant piping installation Read the chapter Refrigerant Piping Work and follow the procedures Since R410A is a blend the required...

Page 4: ...ctric parts may be damaged 2 1 ACCESSORIES Check if the following accessories are attached to the indoor unit Name 1 Metal clamp 2 Drain hose 3 Duct flange connection screw Quantity 1 pc 1 pc See belo...

Page 5: ...he optional accessory and make field settings as needed Is the remote controller icon displayed Is the re mote controller connected to the master unit if the system is in simultaneous multi operation...

Page 6: ...ighting type inverter or rapid start type fluorescent lamp is installed 2 Use suspension bolts for installation Investigate if the installation place can withstand the weight of the indoor unit and if...

Page 7: ...ain piping remote controller wiring unless a wireless re mote controller is used and wiring between the indoor and outdoor units to the piping connection port and wiring connection port of the indoor...

Page 8: ...spatter and other foreign materials from entering the indoor unit and damaging the resin drain pan If holes or cracks are generated in the resin drain pan water can leak 2 Adjust so that the unit is...

Page 9: ...a flare connection coat the flared inner surface only with ether oil or ester oil Refer to Fig 10 Then turn the flare nut 3 to 4 times with your hand and screw in the nut Torque wrench Spanner Flare...

Page 10: ...Fig 11 Before brazing refrigerant piping have nitrogen flow through the refrigerant piping and substitute air with nitrogen NOTE 1 Refer to Fig 12 Then carry out brazing NOTE 2 After all the brazing...

Page 11: ...ig 13 Make sure to use the attached drain hose 2 and the metal clamp 1 Insert the drain hose 2 into the drain socket up to the point where the socket diameter becomes larger Put the metal clamp 1 to t...

Page 12: ...ate abnormal sound Fig 16 CAUTION To avoid the attached drain hose 2 getting excessive force do not bend nor twist it It may cause water leakage As for drain piping connection do not connect the drain...

Page 13: ...y not come off 3 Gradually pour 1 4 gal 1 of water from the dis charge into the drain pan and be careful spraying water to the electric components such as drain pump Refer to Fig 18 4 When the power s...

Page 14: ...ation material Field supply Suction Discharge Screws for duct anges 3 Accessory Screws for duct anges 3 Accessory Flange on discharge side Provided with the unit Fig 20 CAUTION Connect the flange and...

Page 15: ...unit Max 3 280 ft 1 000 m Indoor unit Indoor unit Max 3 280 ft 1 000 m NOTE 1 Vinyl cord with sheath or cable Insulated thickness 1 16 in 1 mm or more 9 4 WIRING CONNECTION METHOD CAUTION FOR WIRING F...

Page 16: ...ture if you have difficulty in performing this step Screws 2 locations Conduit mounting plate 12 Hook Fig 24 4 3 Connect the wiring into the control box through the wiring intake beside the control bo...

Page 17: ...1 P F 2 F 1 P L1 F 1 2 T 2 T 1 P P 2 1 F 2 L2 F L1 1 2 T T P Remote controller Remote controller Remote controller L1 L2 L1 L2 L1 L2 No 2 system When carrying out group control or 2 remote controller...

Page 18: ...on Sheathed vinyl cord or 2 core cable Wiring size AWG 18 16 0 75 1 25 mm2 Wiring length Max 328 ft 100 m External contact spec Contact that can make and break the min load of DC 15 V 1 mA 2 Actuation...

Page 19: ...ill be OFF and the indoor unit will come to a stop Table 7 Mode No FIRST CODE No Setting content SECOND CODE No 01 02 03 11 21 7 Air volume adjust ment OFF Air volume adjust ment completion Air volume...

Page 20: ...arly if the indication is one of those shown in the Table 13 it may be an error in the electrical wiring or the power supply is disconnected Therefore recheck wiring Table 13 Remote controller indicat...

Page 21: ...2209 HT 3P493125 6E EM21A039A Daikin Texas Technology Park 19001 Kermier Road Waller TX 77484 U S A 00_CV_3P493125 6E indd 2 2022 08 03 10 34 56...

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