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FXFQ20~125P8VEB
VRV System air conditioners
4PW44997-1

Installation and operation manual

2

For the following items, take special care during 
construction and check after installation is finished

Notes to the installer

Read this manual carefully to ensure correct installation. Be
sure to instruct the customer how to properly operate the system
and show him/her the enclosed operation manual.

Explain to the customer what system is installed on the site. Be
sure to fill out the appropriate installation specifications in the
chapter "What to do before operation" of the outdoor unit
operation manual.

I

MPORTANT

 

INFORMATION

 

REGARDING

 

THE

 

REFRIGERANT

 

USED

This product contains fluorinated greenhouse gases covered by the
Kyoto Protocol.

Refrigerant type:

R410A

GWP

(1)

 value:

1975

(1)

 GWP = global warming potential

Periodical inspections for refrigerant leaks may be required
depending on European or local legislation. Please contact your local
dealer for more information.

S

ELECTING

 

INSTALLATION

 

SITE

When the conditions in the ceiling are exceeding 30°C and a relative
humidity of 80%, or when fresh air is inducted into the ceiling, an
additional insulation is required (minimum 10 

mm thickness,

polyethylene foam).

For this unit you can select different air flow directions. It is necessary
to purchase an optional blocking pad kit to discharge the air in 2 or 3
directions.

1

Select an installation site where the following conditions
are fulfilled and that meets your customer's approval.

Where optimum air distribution can be ensured.

Where nothing blocks air passage.

Where condensate water can be properly drained.

Where the false ceiling is not noticeably on an incline.

Where sufficient clearance for maintenance and service can be
ensured.

Where there is no risk of flammable gas leaking.

Where piping between indoor and outdoor units is possible within
the allowable limit. (Refer to the installation manual of the outdoor
unit.)

This is a class A product. In a domestic environment this product
may cause radio interference in which case the user may be
required to take adequate measures.

Keep indoor unit, outdoor unit, inter unit wiring and remote
controller at least 1 meter away from televisions and radios. This
is to prevent image interference and noise in those electrical
appliances.
(Noise may be generated depending on the conditions under
which the electric wave is generated, even if 1 meter is kept.)

When installing the wireless remote controller kit, the distance
between wireless remote controller and indoor unit might be
shorter if there are fluorescent lights who are electrically started
in the room. The indoor unit must be installed as far as possible
away from fluorescent lights.

2

Ceiling height

This indoor unit may be installed on ceilings up to 3.5 m in
height (for 125 units: 4.2 m). However, it becomes necessary to
make field settings by the remote controller when installing the
unit at a height over 2.7 m (for 125 units: 3.2 m). To avoid
accidental touching, it is recommended to install the unit higher
than 2.5 m.
Refer to 

"Field setting" on page 7

  and to the decoration panel

installation manual.

3

Air flow directions

Select the air flow directions best suited to the room and point of
installation. (For air discharge in 2 or 3 directions, it is necessary
to make field settings by means of the remote controller and to
close the air outlet(s). Refer to the installation manual of the
optional blocking pad kit and to 

"Field setting" on page 7

.) (See

figure 1

 (

 = air flow direction))

4

Use suspension bolts for installation. Check whether the
ceiling is strong enough to support the weight of the indoor
unit. If there is a risk, reinforce the ceiling before installing
the unit.

(The installation pitch is marked on the paper pattern for
installation. Refer to it to check for points requiring reinforcing.)
Space required for installation see 

figure 2

  (

  = air flow

direction)

Tick 

 

when 

checked

Is the indoor unit fixed firmly?

The unit may drop, vibrate or make noise.

Is the gas leak test finished?

It may result in insufficient cooling or heating.

Is the unit fully insulated?

Condensate water may drip.

Does drainage flow smoothly?

Condensate water may drip.

Does the power supply voltage correspond to that shown on the 
name plate?

The unit may malfunction or components may burn out.

Are wiring and piping correct?

The unit may malfunction or components may burn out.

Is the unit safely grounded?

Dangerous at electric leakage.

Is the wiring size according to specifications?

The unit may malfunction or components may burn out.

Is nothing blocking the air outlet or inlet of either the indoor or 
outdoor units?

It may result in insufficient cooling or heating.

Are refrigerant piping length and additional refrigerant charge 
noted down?

The refrigerant charge in the system might not be clear.

1

All round air discharge

2

Air discharge in 4 directions

3

Air discharge in 3 directions

4

Air discharge in 2 directions

NOTE

Air flow directions as shown in 

figure 1

  merely

serve as examples of possible air flow directions.

1

Air discharge

2

Air inlet

NOTE

Leave 200 mm or more space where marked with *; on
sides where the air outlet is closed.

Model

H

FXFQ20~63

214

100

256

FXFQ125

298

Summary of Contents for FXFQ20P8VEB

Page 1: ...INSTALLATION AND OPERATION MANUAL FXFQ20P8VEB FXFQ25P8VEB FXFQ32P8VEB FXFQ40P8VEB FXFQ50P8VEB FXFQ63P8VEB FXFQ80P8VEB FXFQ100P8VEB FXFQ125P8VEB System air conditioners...

Page 2: ...1 1 2 1500 1500 3 2 4 5 1 50 100 2 1 3 4 950 1 1 5 35 35 3 5 0 75 675 850 175 300 mm 1 1 5 m 2 3 1 5 6 100 mm 1 0 675 mm 1 3 4 3 1 2 4 100 80 100 mm 2 7 2 2 4 5 6 5 10 7 9 4 3 5 1 2 2 2 1 5 10 4 4 1 2...

Page 3: ...til bestemmelsene i 13 noudattaen m r yksi 14 za dodr en ustanoven p edpisu 15 prema odredbama 16 k veti a z 17 zgodnie z postanowieniami Dyrektyw 18 n urma prevederilor 19 ob upo tevanju dolo b 20 va...

Page 4: ...tion Where the air contains high levels of salt such as air near the ocean and where voltage fluctuates a lot e g in factories Also in vehicles or vessels When selecting the installation site use the...

Page 5: ...te controller and indoor unit might be shorter if there are fluorescent lights who are electrically started in the room The indoor unit must be installed as far as possible away from fluorescent light...

Page 6: ...lder for details The centre of the ceiling opening is indicated on the paper pattern for installation The centre of the unit is indicated on the unit casing and on the paper pattern for installation A...

Page 7: ...ooking stove etc Finally insulate as shown in the figure below use the supplied accessory parts Piping insulation procedure Cautions for brazing Be sure to carry out a nitrogen blow when brazing Brazi...

Page 8: ...if drainage flows smoothly Add approximately 1 l of water gradually through the air discharge outlet Method of adding water See figure 11 Check the drainage flow In case electric wiring work is finis...

Page 9: ...rminal While doing this pull the wires inside through the hole in the casing and clamp the wires along with other wires using a clamp as indicated in the figure Unit transmission wiring and remote con...

Page 10: ...Incomplete connections could result in overheating and in the worse case electric shock or fire WIRING EXAMPLE Fit the power supply wiring of each unit with a switch and fuse as shown in figure 17 Com...

Page 11: ...ay Do not display 5 Information to I manager I touch controller Only unit sensor value or remote sensor value if installed Sensor value as set by 10 2 0X or 10 6 0X 6 Thermostat sensor in group contro...

Page 12: ...r filter back in place perform actions 2 to 4 in the illustration in reverse order Attach the air filter to the suction grille by hanging it over the projected portion above the suction grille Press t...

Page 13: ...nce with relevant local and national legislation NOTES NOTE Do not use gasoline benzene thinner polishing powder liquid insecticide It may cause discoloring or warping Do not let the indoor unit get w...

Page 14: ...ed H4P Light emmiting diode Defrost Orange SS1 Selector switch MAIN SUB SS2 Selector switch wireless address set Connector for optional parts X24A Connector wireless remote controller X33A Connector a...

Page 15: ...IN D OUT D F1 F2 F1 F2 Control box LN P1 P2 P1 P2 F1 F2 T1 T2 LN P1 P2 F1 F2 T1 T2 LN P1 P2 F1 F2 T1 T2 LN P1 P2 F1 F2 T1 T2 P1 P2 P1 P2 1 4 2 3 5 IN D OUT D F1 F2 F1 F2 Control box LN P1 P2 P1 P2 F1...

Page 16: ...4PW44997 1 Copyright Daikin...

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