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8

English

1.

Remove the control box lid.  Connect the remote controller
and power supply (single-phase, 50 Hz 220-240 V or sin-
gle-phase, 60Hz 220V) respectively to the terminal block
and securely connect the earth also (as shown in the figure
below).

CAUTION

Securely clamp the cables with the clamps (9)(10) offered 

as accessories as shown in Fig. 17 so that tension will not 

be applied on the cable connection areas.

2.

Confirm that the control box lid is closed before turning on
the power.

3.

Remove the inspection lid.

4.

Gradually pour approximately 1L of water from the inspec-
tion window into the drain pan to check drainage.

CAUTION

Be sure to prevent an external force from being exerted on 

the float switch. 

(This may cause breakage.)

5.

Attach the inspection lid.

6.

Perform the following operation using the remote controller,
and check drainage.

Select the inspection/test operation button “

” using

the remote controller. The unit will engage the test oper-
ation. Press the operation selector button “

”, and

select FAN OPERATION “

”.

Press the ON/OFF button “

”. (The indoor fan and drain 

pump will operate.)

CAUTION

The fan will turn also at the same time.  Take due care.

Do not touch the drain pump to prevent electric shock.

7.

Make sure to use the remote controller in finishing the oper-
ation.

8. INSTALLING THE DUCT

Connect the duct supplied in the field.

Air inlet side

Attach the duct and intake-side flange (field supply).

Connect the flange to the main unit with accessory screws
(7).

Wrap the intake-side flange and duct connection area with
aluminum tape or something similar to prevent air escaping.

CAUTION

When attaching a duct to the intake side, be sure to attach an air 
filter inside the air passage on the intake side.  (Use an air filter 
whose dust collecting efficiency is at least 50% in a gravimetric 
technique.)
The included filter is not used when the intake duct is attached.

Air outlet side

Connect the duct according to the air inside of the outlet-side 
flange.

Wrap the outlet-side flange and the duct connection area
with aluminum tape or something similar to prevent air
escaping.

CAUTION

Be sure to insulate the duct to prevent condensation from
forming. (Material: glass wool or polyethylene foam, 25 mm
thick)

Use electric insulation between the duct and the wall when
using metal ducts to pass metal laths of the net or fence
shape or metal plating into wooden buildings.

Be sure to explain about the way of maintaining and cleaning 
local procurements (air filter, grille (both air outlet and suction
grille), etc.) to your customer.

TEST

TRANSMISSION

WIRING

REMOTE

CNTRL

T1

F1

FORCED

OFF

P2

F2

P1

T2

N

L

L

N

Power supply: 
Single phase, 
50 Hz, 220 V–
240V
Single phase, 
60Hz, 220 V
Power terminal 
connection 
method

Remote controller 
terminal connection 
method

Terminal block

Terminal block

Indoor PCboard 

(ASSY)

(with rubber cap)

Drain outlet

Service drain hole

Bucket

Refrigerant pipes

Inspection lid

Portable pump

Inspection window

Class

15 · 20 · 25 · 32

40 · 50

63

Number of 

positions

16

22

26

Air outlet side

Air inlet side

Insulation 

material

Main unit

Aluminum tape

Aluminum tape

Flange

Flange

(Field supply)

(Field supply)

(Field supply)

(Field supply)

(accessory)

Connection screw (7)

4PEN325876-1F.book  Page 8  Thursday, April 20, 2017  8:20 AM

Summary of Contents for FXDQ-A3

Page 1: ...INSTALLATION MANUAL FXDQ15A3VEB FXDQ20A3VEB FXDQ25A3VEB FXDQ32A3VEB FXDQ40A3VEB FXDQ50A3VEB FXDQ63A3VEB System Inverter Air Conditioners 4PEN325876 1F book Page 1 Thursday April 20 2017 8 20 AM ...

Page 2: ...da B secondo il Certificato C 07 Σημείωση όπως καθορίζεται στο A και κρίνεται θετικά από το B σύμφωνα με το Πιστοποιητικό C 08 Nota tal como estabelecido em A e com o parecer positivo de B de acordo com o Certificado C 09 Примечание как указано в A и в соответствии с положительным решением B согласно Свидетельству C 10 Bemærk som anført i A og positivt vurderet af B i henhold til Certifikat C 11 I...

Page 3: ...llation work 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 qual ified personnel according to local laws and regulations and this installation manual An insufficient power supply capacity or improper electrical construction may lead to electric shocks or fire Make sure that...

Page 4: ... the unit by the hanger brackets Do not apply force to the refrigerant piping drain piping or flange parts Be sure to check the type of R410A refrigerant to be used before installing the unit Using an incorrect refrigerant will prevent normal opera tion of the unit For the installation of an outdoor unit refer to the installation manual attached to the outdoor unit 2 1 PRECAUTIONS Be sure to instr...

Page 5: ...hould be installed as far away from fluores cent lighting as possible 2 Use suspension bolts for installation Check whether the ceiling is strong enough to support the weight of the unit or not If there is a risk reinforce the ceiling before installing the unit To avoid contact with the fan one of the following precaution actions must be taken Install the unit as high as possible at a minimum bott...

Page 6: ... prevent shaking Consult an architect or carpenter for details 4 Install the suspension bolts Use W3 8 to M10 suspension bolts Use a hole in anchor for existing ceilings and a sunken insert sunken anchor or other part to be procured in the field to reinforce the ceiling to bearing the weight of the unit for new ceiling Refer to Fig 3 5 In case of bottom suction 1 Remove the chamber lid 7 locations...

Page 7: ...ra ture above the ceiling might reach 30 C or the humidity RH80 Condensation may form on the surface of the insu lation CAUTION Follow the points at below Use a pipe cutter and flare suitable for the type of refrigerant Apply ester oil or ether oil to the flare section when using a flare connection Only use the flare nuts included with the unit Using different flare nuts may cause the refrigerant ...

Page 8: ...phosphor copper brazer BCuP 2 JIS Z 3264 B Cu93P 710 795 ISO 3677 which does not require flux Using a flux containing chlorine may cause the piping to corrode Using a welding flux containing fluorine may cause the refrigerant lubricant to deteriorate and affect adversely the refrigerant piping system Not recommendable but in case of emergency You must use a torque wrench but if you are obliged to ...

Page 9: ...o Fig 13 PRECAUTIONS Drain piping connections Do not connect the drain piping directly to sewage pipes that smell of ammonia The ammonia in the sewage might enter the indoor unit through the drain piping and corrode the heat exchanger Do not twist or bend the drain hose 2 so that excessive force is not applied to it This type of treatment may cause leaking If you are using central drain piping fol...

Page 10: ...ion area with aluminum tape or something similar to prevent air escaping CAUTION When attaching a duct to the intake side be sure to attach an air filter inside the air passage on the intake side Use an air filter whose dust collecting efficiency is at least 50 in a gravimetric technique The included filter is not used when the intake duct is attached Air outlet side Connect the duct according to ...

Page 11: ...Do not turn on the power supply circuit breaker or earth leak age breaker until all other work is done 9 2 SPECIFICATIONS FOR FIELD SUPPLIED FUSES AND WIRE Power related NOTES 1 Shows only in case of protected pipes Use H07RN F in case of no protection 2 Insulated thickness 1mm or more 3 If the wiring is in a place where people it can be easily touched by people install an earth leakage breaker to...

Page 12: ...wer sup ply wiring to the remote controller or transmission wiring terminal block Doing so can destroy the entire system Connecting electrical wiring remote controller wiring and transmission wiring Refer to Fig 18 Power supply and Earth wiring Remove the control box lid Next pull the wires into the unit through the wiring through hole and connect to the terminal block 3P Be sure to put the part o...

Page 13: ...ystem For group control or use with 2 remote controllers Terminal block Tightening torque N m Remote controller transmission wiring terminal block 6P 0 79 0 97 Power supply wiring terminal block 3P 1 18 1 44 Insulation sleeve Round crimp style terminal Electric wire Do not connect wires of different gauges Do not connect wires of the same gauge to one side Connect wires of the same gauge to both s...

Page 14: ... achieve remote control See the 11 FIELD SETTING AND TEST RUN for details on operation 10 4 CENTRALIZED CONTROL For centralized control it is necessary to designate the group No For details refer to the manual of each optional control lers for centralized control L N F F1 2 F F1 2 F F1 2 F F1 2 IN D IN D OUT D OUT D 1 P P 2 1 F 2 N F L 1 2 T T 1 P 2 P Power supply single phase 50Hz 220 240V or sin...

Page 15: ...on man ual included with the wireless remote controller for details on how to make the settings 3 Perform a test run according to the outdoor unit s installation manual The operation lamp of the remote controller will flash when a malfunction occurs Check the malfunction code on the liquid crystal display to identify the point of trouble An explanation of malfunction codes and the correspond ing t...

Page 16: ...OT LAMP LIGHT EMITTINGDIODE S NPL PRESSURESENSOR LOW HAP LIGHT EMITTINGDIODE SERVICEMONITOR GREEN S PH HPS PRESSURESWITCH HIGH HIGH VOLTAGE HIGH VOLTAGE S PL PRESSURESWITCH LOW IES INTELLIGENT EYESENSOR S T THERMOSTAT IPM INTELLIGENT POWER MODULE S W SW OPERATION SWITCH K R KCR KFR KHuR MAGNETIC RELAY SA SURGE ARRESTOR L LIVE SR WLU SIGNAL RECEIVER L COIL SS SELECTOR SWITCH L R REACTOR SHEET METAL...

Page 17: ...4P325876 1H book Page 1 Thursday April 27 2017 10 43 AM ...

Page 18: ...4P325876 1F 2017 02 Copyright 2012 Daikin 4PEN325876 1F book Page 1 Thursday April 20 2017 8 20 AM ...

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