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English

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FOR THE FOLLOWING ITEMS, TAKE SPECIAL CARE 
DURING CONSTRUCTION AND CHECK AFTER 
INSTALLATION IS FINISHED.

a. Items to be checked after completion of work

b. Items to be checked at time of delivery

Also review the “SAFETY CONSIDERATIONS”

c. Points for explanation about operations

2-4

NOTE TO THE INSTALLER

Be sure to instruct customers how to properly operate the unit 
(especially cleaning filters, operating different functions, and 
adjusting the temperature) by having them carry out operations 
themselves while looking at the manual.

3.

SELECTING INSTALLATION SITE

Please attach additional thermal insulation material to the unit 
body when it is believed that the relative humidity in the ceiling 
exceeds 80%. Use glass wool, polyethylene foam, or similar with 
a thickness of 10 mm or more as thermal insulation material.

(1)

Select an installation site where the following conditions are 
satisfied and that meets with your customer’s approval.
• In the upper space (including the back of the ceiling) of the 

indoor unit where there is no possible dripping of water 
from the refrigerant pipe, drain pipe, water pipe, etc.

• Where optimum air distribution can be ensured.
• Where nothing blocks air passage.
• Where condensate can be properly drained.
• Where the ceiling is strong enough to bear the indoor unit 

weight.

• Where the false ceiling is not noticeably on an incline.

• Where sufficient clearance for installation and mainte-

nance can be ensured.

• Where there is no risk of flammable gas leakage.
• Where piping between indoor and outdoor units is possi-

ble within the allowable limit. (Refer to the installation 
manual for the outdoor unit.)

CAUTION

• Install the indoor and outdoor units, power supply wiring and 

connecting wires at least 1 meter away from televisions or 
radios in order to prevent image interference or noise.
(Depending on the radio waves, a distance of 1 meter may 
not be sufficient enough to eliminate the noise.)

(2) Ceiling height

• Install this unit where the height of bottom panel is more 

than 2.5 m so that the user cannot easily touch.

• This unit can be installed in ceilings up to 3.8 meters high. 

If the ceiling height exceeds 2.7 meters, however, the 
connector of terminal board (A2P) must be replaced and 
an air outlet blocking pad must be installed. Refer to 

HIGH CEILING INSTALLATION

  (P.9).

(3) 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.

(Installation pitch is maked on the paper pattern for installa-
tion. Refer to it to check for points requiring reinforcing.)

4.

PREPARATIONS BEFORE INSTALLATION

(1)

Relation of ceiling opening to suspension bolt position

Items to be checked

If not properly done, what is 
likely to occur

Check

Are the indoor and outdoor 
unit fixed firmly?

The unit may drop, vibrate or 
make noise.

Is the gas leak test finished?

It may result in insufficient 
cooling.

Is the unit fully insulated?

Condensate water may drip.

Does drainage flow 
smoothly?

Condensate water may drip.

Does the power supply volt-
age correspond to that 
shown on the name plate?

The unit may malfunction or 
the components burn out.

Are wiring and piping cor-
rect?

The unit may malfunction or 
the components burn out.

Is the unit safely grounded?

Dangerous at electric leak-
age.

Is wiring size according to 
specifications?

The unit may malfunction or 
the components burn out.

Is something blocking the air 
outlet or inlet of either the 
indoor or outdoor units?

It may result in insufficient 
cooling.

Are refrigerant piping length 
and additional refrigerant 
charge noted down?

The refrigerant charge in the 
system is not clear.

Items to be checked

Check

Did you explain about operations while showing the instruc-
tion manual to your customer?

Did you hand the instruction manual over to your customer?

The items with

WARNING and

CAUTION marks in the 

instruction manual are the items pertaining to possibillties for 
bodily injury and material damage in addition to the general 
usage of the product. Accordingly, it is necessary that you 
make a full explanation about the described contents and 
also ask your customers to read the instruction manual.

200

or more

200 

or more

1000 

or more

(length: mm)

2500 or more

For installation

in high places

20 or more

(length: mm)

(Suction side)

(Discharge side)

220 

or more

1500 

or more

D

C

B

A

800

760

710

350

Decoration 
panel

Indoor unit

(length: mm)

Suspension 
bolt (×4)

Ceiling 
opening

01_EN_3P086156-8F.fm  Page 3  Wednesday, March 19, 2003  6:55 PM

Summary of Contents for FXKQ25MVE

Page 1: ...MANO PARA LEER EN CASO DE TENER ALGUNA DUDA PRIMA DELL INSTALLAZIONE LEGGERE ATTENTAMENTE QUESTE ISTRUZIONI TENERE QUESTO MANUALE A PORTATA DI MANO PER RIFERIMENTI FUTURI LEES DEZE INSTRUCTIES ZORGVU...

Page 2: ...rmidade com a s seguinte s norma s ou outro s documento s normativo s desde que estes sejam utilizados de acordo com as nossas instru es overholder f lgende standard er eller andet andre retningsgiven...

Page 3: ...g 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 all wiring is...

Page 4: ...Also in vehicles or vessels This unit both indoor and outdoor is suitable for installation in a commercial and light industrial environment If installed as a household appliance it could cause electro...

Page 5: ...ight exceeds 2 7 meters however the connector of terminal board A2P must be replaced and an air outlet blocking pad must be installed Refer to HIGH CEILING INSTALLATION P 9 3 Use suspension bolts for...

Page 6: ...and paper pattern for installation have been adjusted to the dimensions of the ceiling opening Be sure to establish thorough communi cation with those who are to do the ceiling work 4 Check the unit i...

Page 7: ...absolutely sure to execute heat insulation works on the pipe connecting section after checking gas leakage by thor oughly studying the following figure and using the attached heat insulating materials...

Page 8: ...ing piping Secure a downward gradient of 1 100 or more for the drain pipe To accomplish this mount supporting brackets at an interval of 1 1 5 m Precautions when doing drain up piping work Make sure t...

Page 9: ...d switch and wiring instructions Be sure to ground the air conditioner Do not connect the ground wire to gas and water pipes light ning rods or telephone ground wires Gas pipes might cause explosions...

Page 10: ...ws Use the correct screwdriver for tightening the terminal screws If the blade of screwdriver is too small the head of the screw might be damaged and the screw will not be properly tightened If the te...

Page 11: ...actory set Insert Insert Power supply wiring Transmission wiring Switch Fuse Power supply Main switch Remote controller Indoor unit BS unit Only for Heat recovery system L N L N IN D OUT D F1 F2 F1 F2...

Page 12: ...terminals T1 and T2 of the terminal block for remote controller 2 Actuation The following table explains FORCED OFF and ON OFF OPERATIONS in response to Input A 3 How to select FORCED OFF and ON OFF O...

Page 13: ...No to 1 Then set second code position No to 01 for FORCED OFF and 02 for ON OFF OPERATION FORCED OFF at factory set 12 TEST OPERATION Refer to the installation manual of the outdoor unit The operatio...

Page 14: ...0303 HT 3P086156 8J EM02A082A...

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