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12

English

(2) 

After piping is finished, check if the drain flows 

smoothly.

[When the electric wiring work is finished]

• 

Gradually pour 1/4 gal. (1 

) of water from the filling port 

 

at the bottom of the drain socket or the discharge into 
the drain pan, and be careful spraying water to the 

electric components such as drain pump and confirm 

drainage by operating the indoor unit under cooling 
mode according to 

10. FIELD SETTING

(Refer to 

Fig. 18)

Control box

Drain socket

Filling port

Drain pan

Drain socket 

(With rubber cap)

Plastic container 

for pouring water

Drain pump 

position

Terminal block 

for wiring between 

the indoor and 

outdoor units

Control box cover

Discharge

Inspection 

window

Screw

[Method of adding water]

Fig. 18

[When the electric wiring work is not finished]

• 

The electric wiring works (including grounding) must 

be carried out by a qualified electrician.

• 

If a qualified person is not present, after the electric 
wiring work is finished, check the drainage accord ing 
to the method specified in 

[When the electric wiring 

work is finished]

.

1. 

Open the control box cover and connect the single 

phase 208/230 V power supply to the terminal (L1, 
L2) on the terminal block (X1M). 
Connect the ground wiring to the ground terminal.

2. 

Make sure the control box cover is closed before 

turning on the power supply.

• 

Throughout the whole process, carry out the 
work giving caution to the wiring around the con-

trol box so that the connectors may 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 supply is turned on, the drain pump 
will operate. Drainage can be checked at the trans-
parent part of the drain socket.
(The drain pump will automatically stop after 10 
minutes.)

The drainage of water can be confirmed with water 

level change in the drain pan through the access 
window.

• 

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 piping and corrode the heat exchanger of 

the indoor unit.

• 

Do not apply external force to the float switch. (It 

may result in malfunction)

• 

Do not touch the drain pump. 
Touching the drain pump may cause electric shock.

5. 

Turn off the power supply after checking drainage, 
and remove the power supply wiring.

6. 

Attach the control box cover as before.

(3)  Sweating may occur and result in water leakage. 

Therefore, make sure to insulate the following 2 

locations (drain piping that laid indoors and drain 

sockets).

• 

Use the provided sealing material (Large) (6), and 
perform the thermal insulation of the metal clamp (1) 
and drain hose (2) after checking the drainage of water. 

(Refer to Fig. 19)

Start wrapping from where the 

metal clamp (1) is tightened.

Wrap the sealing material (Large) (6) 

so that the metal clamp (1) end side 

may be doubled.

Metal clamp (1)
(Accessory)

Drain hose (2)
(Accessory)

Sealing material (Large) (6) 
(Accessory)

Sealing material - Large 
(6) (Accessory)

No clearance is 
allowed.

Fig. 19

01_EN_3P493125-6E.indd   12

2022/08/03   10:36:10

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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