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English

Items to be checked

In case of defective

Check  

column

Is the insulation of refriger-
ant piping and drain piping 

completely carried out? 

Water leakage

Does the drain flow out 
smoothly?

Water leakage

Is the power supply voltage 
identical to that stated on 
the name plate of the air 

conditioner?

Does not operate · 
burnout

Are you sure that there is no 
wrong wiring or piping or no 

loose wiring?

Does not operate · 
burnout

Is grounding completed?

Danger in case of 
leakage

Are the sizes of electric 
wiring according to the 

specification?

Does not operate · 
burnout

Are any of discharge or 
suction of the indoor and 
outdoor units blocked with 

obstacles?

(It may lead to capacity drop 
due to fan speed drop or 
malfunction of equipment.)

Does not cool/ 
Does not heat

Is the external static pres

-

sure set correctly?

Does not cool/ 
Does not heat

Have you recorded the 
refrigerant piping length 
and the refrigerant charge 

amount added?

Refrigerant charge 
amount is not clear

Make sure to recheck the items of “SAFETY CONSIDERATIONS”.

(2)  Items to be checked at delivery

 

Items to be checked

Check  

column

Have you carried out field setting? (if necessary)

Are the control box cover, the air filter and the suc

-

tion grille attached?

Does the cool air discharge during the cooling 
operation and the warm air discharge during the 

heating operation? Does the indoor unit makes 
unpleasant sound of air discharge?
Have you explained how to operate the air 

conditioner showing the operation manual to the 

customer? 
Have you explained the description of cooling, 

heating, program dry and automatic (cooling/heat-

ing) given in the operation manual to the customer?

If you 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?

Have you checked that there is no generation of 
abnormal noise (i.e., noise resulting from contami-

nation or missing parts)?

If an optional accessory is in use, did you check the 

operation of the 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?
Have you explained failure examples of 

 

3. SELECTION OF INSTALLATION LOCATION

?

Points of the operation explanation

In addition to the general usage, since the items in the 

operation manual with the 

WARNING and  

CAUTION marks are likely to result in human bodily 

injuries and property damages, it is neces sary not only 

to explain these items to the customer but also to have 

the customer read them.

Furthermore, it is necessary to have the customer read 

through the troubleshooting items while explaining the 

above items.

3.  SELECTION OF INSTALLATION  

LOCATION

Hold the hanger brackets at 4 locations to move the 

indoor unit when unpacking or after unpacked, and do 

not apply force to the piping (refrigerant and drain) and 

discharge flange.

 

If the temperature and humidity in the ceiling is likely to 

exceed 86°F (30°C), RH80%, use the additional insulation 

stick to the indoor unit (Field supply). 

Use the insulation such as glass wool or polyethylene 

that has thickness of 3/8 in. (10 mm) or more. However, 

keep the insulated outside dimension smaller than the 

ceiling opening so that the unit may go through the open-

ing at installation.

(1)  Select the installation location that meets the follow-

ing conditions and get approval of the cus tomer. 

• 

Where the cool and warm air spreads evenly in the 
room.

• 

Where there are no obstacles in the air passage.

• 

Where drainage can be ensured.

• 

Where the ceiling’s lower surface is not remarkably 
inclined.

• 

Where there is sufficient strength to withstand the 
weight of the indoor unit. (If the strength is insufficient, 

the indoor unit may vibrate and get in contact with the 
ceiling and generate unpleasant chattering noise.)

• 

Where a space sufficient for installation and service 

can be ensured. 

(Refer to Fig. 1 and Fig. 2)

• 

Where the piping length between the indoor and the 
outdoor units is ensured within the allowable length. 
(Refer to the installation manual attached to the out-
door unit.)

• 

Where there is no risk of flammable gas leak.

01_EN_3P493125-6E.indd   4

2022/08/03   10:36:07

Содержание FXMQ15TBVJU

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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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