Fujitsu AUG25ALD-W Installation guide

Brand: Fujitsu

Model: AUG25ALD-W

Category: Split-system air conditioners

Type: Installation guide

INDOOR UNIT (Cassette Type)

INSTALLATION MANUAL

For authorized service personnel only.

AIR CONDITIONER

English

PART No. 9365388075

Refer to the rating label with the serial number.

MADE IN THAILAND

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1. SAFETYPRECAUTIONS

WARNING!

This mark indicates procedures which, if improperly performed,

might lead to the death or serious injury of the user.

CAUTION!

This mark indicates procedures which, if improperly performed,

might possibly result in personal harm to the user, or damage

to property.

WARNING

Fortheairconditionertooperatesatisfactorily,installitasoutlinedinthis

installationinstructionsheet.

Connecttheindoorunitandoutdoorunitwiththeroomairconditionerpiping

andcordsavailablefromourstandardparts.Thisinstallationinstructionsheet

describesthecorrectconnectionsusingtheinstallationsetavailablefromour

standardparts.

Installationworkmustbeperformedinaccordancewithnationalwiring

standardsbyauthorizedpersonnelonly.

Ifrefrigerantleakswhileworkisbeingcarriedout,ventilatethearea.Ifthe

refrigerantcomesincontactwithaame,itproducesatoxicgas.

Donotturnonthepoweruntilallinstallationworkiscomplete.

Duringinstallation,makesurethattherefrigerantpipeisattachedrmlybefore

yourunthecompressor.

Do not operate the compressor under the condition of refrigerant piping not attached

properly with 2-way or 3-way valve open. This may cause abnormal pressure in the

refrigeration cycle that leads to breakage and even injury.

Duringthepump-downoperation,makesurethatthecompressoristurnedoff

beforeyouremovetherefrigerantpiping.

Do not remove the connection pipe while the compressor is in operation with 2-way or

3-way valve open. This may cause abnormal pressure in the refrigeration cycle that

leads to breakage and even injury.

Wheninstallingandrelocatingtheairconditioner,donotmixgasesotherthan

thespeciedrefrigerant(R22)toentertherefrigerantcycle.

If air or other gas enters the refrigerant cycle, the pressure inside the cycle will rise to

an abnormally high value and cause breakage, injury, etc.

• Be careful not to scratch the air conditioner when handling it.

• After installation, explain correct operation to the customer, using the operating manual.

• Let the customer keep this installation instruction sheet because it is used when the air

conditioner is serviced or moved.

• The maximum length of the piping is shown in Table 1. If the units are further apart than

this, correct operation cannot be guaranteed.

2. ABOUTTHISPRODUCT

2.1.Accessories

INDOORUNITACCESSORIES

NameandShape Q’ty Description

Operating Manual

Installation manual

(This book)

Coupler heat insulation

For indoor side pipe joint

Special nut A

(large ange)

For installing indoor unit

Special nut B

(small ange)

For installing indoor unit

Template

For ceiling hole cutting

Binder

(large)

For remote controller cable binding

Blower cover insulation

For discharged air

Hook wire

For installing intake grille

REMOTECONTROLLERACCESSORIES

NameandShape Q’ty Description

Remote controller

Installation to indoor unit

Remote controller cable

For connecting the remote controller

Remote controller cord clamp

For installing the remote controller

cord

Screw

For installing the remote controller

cord clamp

For installing the remote controller

Binder

For remote controller and remote

controller cable binding

OUTDOORUNITACCESSORIES

The types of outdoor units are shown in Fig. 4.

TYPEA TYPEB

Hexagon

wrench

1 -

For operating the refrigerant

valve on the outdoor unit

Drain pipe

1 1

For outdoor unit drain piping

work (May not be supplied,

depending on the model.)

Cap (drain)

2 1

1. SAFETY PRECAUTIONS ……………………………………………………………… 1

2. ABOUT THIS PRODUCT ………………………………………………………………… 1

2.1. Accessories ………………………………………………………………………… 1

3. GENERAL SPECIFICATION …………………………………………………………… 2

3.1. Pipe requirement …………………………………………………………………… 2

3.2. Electrical requirement ……………………………………………………………… 2

4. INSTALLATION WORK ………………………………………………………………… 2

4.1. Selecting an installation location ………………………………………………… 2

4.2. Indoor unit installation ……………………………………………………………… 3

4.3. Installing the drain pipe …………………………………………………………… 5

4.4. Outdoor unit installation …………………………………………………………… 5

5. PIPE INSTALLATION …………………………………………………………………… 6

5.1. Flare processing …………………………………………………………………… 6

5.2. Bending pipes ……………………………………………………………………… 6

5.3. Connection pipes …………………………………………………………………… 6

5.4. Vacuum process …………………………………………………………………… 7

5.5. Gas leakage inspection …………………………………………………………… 7

5.6. Installing the coupler heat insulation ……………………………………………… 7

6. ELECTRICAL WIRING …………………………………………………………………… 7

7. GRILLE INSTALLATION ………………………………………………………………… 9

8. POWER ………………………………………………………………………………… 10

9. REMOTE CONTROLLER INSTALLATION ………………………………………… 10

9.1. Electrical requirement …………………………………………………………… 10

9.2. Dimensions ……………………………………………………………………… 10

9.3. Name of parts …………………………………………………………………… 10

9.4. Installation ………………………………………………………………………… 10

9.5. Setting the DIP switch …………………………………………………………… 11

9.6. Connection of Remote Controller Cable ……………………………………… 11

10. SPECIAL INSTALLATION METHODS ……………………………………………… 12

10.1. Group control …………………………………………………………………… 12

10.2. Auto restart ……………………………………………………………………… 12

10.3. Memory backup function ………………………………………………………… 12

11. TEST RUN ……………………………………………………………………………… 12

12. OPENING THE DUCT CONNECTION HOLE ……………………………………… 13

13. CUSTOMER GUIDANCE ……………………………………………………………… 14

INSTALLATIONMANUAL

PART No. 9365388075

Indoor Unit (Cassette Type)

Contents

Note: This manual describes how to install the air conditioner described above. Handling

and installation shall only be done by professionals as outlined in this manual.

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3. GENERALSPECIFICATION

3.1.Piperequirement

Table1

Diameter

Maximum length

Maximum height

(between indoor

and outdoor)

Small Large

9.53 mm

(3/8")

15.88 mm

(5/8")

25 m

(82 ft)

15 m

(50 ft)

• Use 0.7 mm to 1.2 mm thick pipe.

• Use pipe with water-resistant heat insulation.

• Use pipe that can withstand a pressure of 3,040 kPa.



CAUTION

Install heat insulation around both the gas and liquid pipes. Failure to do so may

cause water leaks.

Use heat insulation with heat resistance above 120 °C. (Reverse cycle model only)

In addition, if the humidity level at the installation location of the refrigerant piping is

expected to exceed 70%, install heat insulation around the refrigerant piping. If the

expected humidity level is 70-80%, use heat insulation that is 15 mm or thicker and if

the expected humidity exceeds 80%, use heat insulation that is 20 mm or thicker.

If heat insulation is used that is not as thick as specied, condensation may form on

the surface of the insulation.

In addition, use heat insulation with heat conductivity of 0.045 W/(m·K) or less (at

20 °C).

3.2.Electricalrequirement

• Electric wire size and fuse/breaker capacity:

Table2

Power supply cable

(mm

)

MAX 4.0*2

MIN 3.5

Connection cable

(mm

)

MAX 2.5*1

MIN 1.0*1

Fuse/Breaker capacity (A) 30

• Use conformed cord with Type 245 IEC57 (*1) or Type 245 IEC66 (*2).

• Install all electrical works in accordance to the standard.

• Install the disconnect device with a contact gap of at least 3 mm in all poles nearby the

units. (Both indoor unit and outdoor unit)

4. INSTALLATIONWORK

4.1.Selectinganinstallationlocation

Especially, the installation place is very important for the split type air conditioner because

it is very difcult to move from place to place after the rst installation.

Decide the mounting position together with the customer as follows:

The discharge direction can be selected as shown below.

Fig.1

100 mm (4") or more

Piping position

100 mm (4")

or more

(4 directions) (3 directions) (2 directions) (2 directions)

100 mm (4") or more

1,000 mm (39")

or more



CAUTION

Since 2-way outlet as shown below causes performance problems, do not set it.

Pipe

INDOORUNIT

(1) Install the indoor unit on a place having a sufcient strength so that it withstands

against the weight of the indoor unit.

(2) The inlet and outlet ports should not be obstructed; the air should be able to blow all

over the room.

(3) Leave the space required to service the air conditioner (Fig. 2).

(4) The ceiling rear height as shown in Fig. 3.

(5) A place from where the air can be distributed evenly throughout the room by the unit.

(6) A place from where drainage can be extracted outdoors easily.

(7) Install the unit where noise and vibrations are not amplied.

Fig.2

Strong and durable ceiling

2,300 mm (91")

or more

1,000 mm (39")

or more

1,000 mm (39")

or more

Obstruction

Floor

This mechanism enables the cassette body to move 35 mm downward and realizes instal-

lation to the space of 200 mm. No special works and option is needed.

Fig.3

Youcanselect2-waysetting

(A)Standardsetting (B)Slendersetting

235 mm (9-1/4")

or more

200 mm (7-7/8")

or more

OUTDOORUNIT



WARNING

Install the unit where it will not be tilted by more than 5°.

When installing the outdoor unit where it may exposed to strong wind, fasten it se-

curely.

(1) If possible, do not install the unit where it will exposed to direct sunlight. (If necessary,

install a blind that does not interfere with the air ow.)

(2) Install the outdoor unit in a place where it will be free from being dirty or getting wet by

rain as much as possible.

(3) Install the unit when connection to the indoor unit is easy.

(4) During heating operation, drain water ows from the outdoor unit.

Therefore, install the outdoor unit in a place where the drain water ow will not be

obstructed.

(5) Do not place animals and plants in the path of the warm air.

(6) Take the air conditioner weight into account and select a place where noise and

vibration are small.

(7) Select a place so that the warm air and noise from the air conditioner do not disturb

neighbors.

(8) Provide the space shown in Fig. 4 so that the air ow is not blocked. Also for efcient

operation, leave open three of the four directions front, rear, and both sides.

(9) Do not set the unit directly on the ground because it will cause trouble.

(10) Set the unit on a strong stand, such as one made of concrete blocks to minimize

shock and vibration.

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• Pull up while pressing the B section (Fig. 7).

Fig.7PartAdetailview

Fig.8PartAsectionview

Grille hinge wire

(4) Remove the intake grille.

REMOVINGTHEPANELFRAME

• Pull up the corner sections (A) of the panel frame as shown in Fig. 9 (4 locations).

Fig.9PartAdetailview

• Pull up in the direction of the arrow while holding down the C section of Fig. 10 (4 loca-

tions).

Fig.10PartBdetailview

Fig.4

Air

[TYPEA] [TYPEB]

30 cm

(12")

or more

30 cm (1')

or more

60 cm (2')

or more

60 cm (2')

or more

30 cm (1')

or more

30 cm

(1')

or more

30 cm (12")

or more

30 cm

(12")

or more

60 cm (24")

or more

60 cm (24")

or more

AIR

4.2.Indoorunitinstallation



WARNING

Install the air conditioner in a location which can withstand a load do at least ve

times the weight of the main unit and which will not amplify sound or vibration.

If the installation location is not strong enough, the indoor unit may fall and cause inju-

ries.

If the job is done with the panel frame only, there is a risk that the unit will come loose.

Please take care.

REMOVINGTHEINTAKEGRILLE

(1) Push the intake grille pushbuttons (two places).

(2) Open the intake grille.

Fig.5

Push

Open

(3) Remove the grille hinge wire.

Fig.6

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Fig.11

Panel frame

Panel base

CAUTION

Always remove the panel frame after removing the intake grille.

1.POSITIONTHECEILINGHOLEANDHANGINGBOLTS

Fig.12

940 mm ( 37")

750 mm (29-17/32")

(Hanging bolt position)

890 mm ( 35-3/64")

(Ceiling opening measurement)

(Hanging bolt position)

(Grille measurement)

2.HANGINGPREPARATIONS

• Firmly fasten the hanging bolts as shown in Fig. 13 or by another method.

• Install the hanging bolts at a place where they would be capable of holding a weight of

at least 50 kgf per bolt.

Fig.13

Hole-in anchor

Hole-in plug

Hanging bolt

M10

Concrete

Insert

Fig.14

(A)Standardsetting

298.5 mm (11-3/4")

305.5 mm (12")

Drain pipe (I.D. 32 mm)

248.5 mm

(9-25/32")

60 mm

(2-3/8")

(2-3/4")

(3-15/16")

(5")

70 mm

100 mm

235 mm (9-1/4")

127 mm

(B)Slendersetting

298.5 mm (11-3/4")

305.5 mm (12")

Drain pipe (I.D. 32 mm)

248.5 mm

(9-25/32")

60 mm

(2-3/8")

(2-3/4")

(3-15/16")

(3-5/8")

70 mm

100 mm

200 mm (7-7/8")

92 mm

3.BODYINSTALLATION

[The ceiling rear height is 235 mm (9-1/4") or more.] [Standard setting]

[The ceiling rear height is 200 mm (7-7/8") or more.] [Slender setting]

(1) Install special nut A, then special nut B onto the hanging bolt (Fig. 15).

(2) Raise the body and mount its hooks onto the hanging bolt between the special nuts

(Fig. 15).

(3) Turn special nut B to adjust the height of the body (Fig. 15).

(4) Leveling

Using a level, or vinyl hose lled with water, ne adjust so that the body is level.

WARNING

Perform nal tightening by tightening the double nut rmly.

Fig.15

Special nut A

Ceiling

* Must t tightly against

ceiling without any gap.

Special nut B

Hanging bolt

Hook

30 mm

or more

After installing the body,

tighten the nuts.

Fig.16

Vinyl hose

* Allowable space between

the unit and the ceiling

5 mm or less

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INSTALLINGTHEPANELFRAME

Fig.17

Panel base

Panel frame

*90° Turn

* With slender setting, turn the panel frame 90° as shown in the diagram above.

Grille setting method has been changed at the marked positions on the panel frame and

panel base.

Fig.18

(A)Standardsetting (B)Slendersetting

Mark

Panel frame

No mark

Fig.19

[Example]

* Appearance of slender setting

4.3.Installingthedrainpipe

CAUTION

Install the drain pipe in accordance with the instructions in this installation instruction

sheet and keep the area warm enough to prevent condensation. Problems with the

piping may lead to water leaks.

Notes:Installthedrainpipe.

• Install the drain pipe with downward gradient (1/50 to 1/100) and so there are no rises or

traps in the pipe.

• Use general hard polyvinyl chloride pipe (VP25) [outside diameter 32 mm (1-1/4")] and

connect it with adhesive (polyvinyl chloride) so that there is no leakage.

• When the pipe is long, install supporters.

• Do not perform air bleeding.

• Always heat insulate the indoor side of the drain pipe.

• When desiring a high drain pipe height, raise it up to 800 mm (31") or less from the

ceiling within a range of 150 mm (6") from the body. A rise dimension over this range will

cause leakage.

Fig.20

Air bleeding

150 mm (6") or less

1.5 to 2 m (5 to 6.5 ft)

Supporter

Max 800 mm

(31")

Rise

Trap

4.4.Outdoorunitinstallation

1.OUTDOORUNITPROCESSING

When the outdoor unit will be exposed to strong wind, fasten it with bolts at the four places

indicated by the arrows (Fig. 21).

Fig.21

[TYPEA]

Air ow

Drain cap

19 mm (3/4")

333 mm

(13-7/64")

804 mm (31-21/32")

Bottom

Drain pipe mounting hole

[TYPEB]

Bottom

Drain cap

Drain pipe mounting hole

603 mm

Air ow

343 mm

Bottom plate

Drain pipe mounting hole

Drain pipe

CAUTION

If this product is used in an area where the

temperature falls below freezing for long

periods of time, do not connect the drain pipe.

Instead, allow the water to drain into a drain

pan.

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2.OUTDOORUNITCONNECTIONCABLEANDPIPECONNECTION

PREPARATIONS

(1) Remove outdoor unit valve cover and terminal cover.

Fig.22

[TYPEA]

* After removing the screws,

remove valve cover and

terminal cover.

Terminal

cover

Valve

cover

Valve

[TYPEB]

Terminal

cover

(2) Connect the piping, connection cable and power supply cord.

5. PIPEINSTALLATION

5.1.Flareprocessing

(1) Cut the connection pipe with pipe cutters so that the pipe is not deformed.

(2) Holding the pipe downward so that cuttings cannot enter the pipe and remove the

burrs.

(3) Remove the are nut from the indoor unit pipe and outdoor unit and assemble as

shown in (Table 3) and insert the are nut onto the pipe, and are with a aring tool.

(4) Check if the ared part “L” (Fig. 23) is spread uniformly and that there are no cracks.

Table3

Pipe Flarenut

Small pipe Small (width across ats 22 mm)

Large pipe Large (width across ats 27 mm)

Fig.23

L dimension

Small pipe (9.53 mm dia.)

1.8 to 2.0 mm

Large pipe (15.88 mm dia.)

2.2 to 2.4 mm

Width across ats

5.2.Bendingpipes

The pipes are shaped by your hands. Be careful not to collapse them.

Fig.24

Good

Extend the pipe

by unwinding it.

Bad

Do not bend the pipes in an angle more than 90°.

When pipes are repeatedly bent or stretched, the material will harden, making it difcult to

bend or stretch them any more. Do not bend or stretch the pipes more than three times.

When bending the pipe, do not bend it as is.

The pipe will be collapsed. In this case, cut

the heat insulating pipe with a sharp cutter

as shown in Fig. 25, and bend it after expos-

ing the pipe. After bending the pipe as you

want, be sure to put the heat insulating pipe

back on the pipe, and secure it with tape.

Fig.25

Heat insulating

pipe

Pipe

Cut line

Cutter

CAUTION

To prevent breaking of the pipe, avoid sharp bends.

Bend the pipe with a radius of curvature of 150 mm or over.

If the pipe is bent repeatedly at the same place, it will break.

5.3.Connectionpipes

(1)Indoorunitside

Fig.26

Indoor unit

Large pipe

Small pipe

CAUTION

Be sure to apply the pipe against the port on the indoor unit correctly. If the centering

is improper, the are nut cannot be tightened smoothly. If the are nut is forced to turn,

the threads will be damaged.

Do not remove the are nut from the indoor unit pipe until immediately before connect-

ing the connection pipe.

When the are nut is tightened properly by your hand, hold the body side coupling with a

separate spanner, then tighten with a torque wrench (Fig. 27).

Fig.27

Holding spanner

Body side

90º

Torque wrench

CAUTION

Hold the torque wrench at its grip, keeping it in the right angle with the pipe as shown in

Fig. 27, in order to tighten the are nut correctly.

Table4:Flarenuttighteningtorque

Pipe Tighteningtorque

Small pipe 30.4 to 34.3 N·m (310 to 350 kgf·cm)

Large pipe 73.5 to 78.4 N·m (750 to 800 kgf·cm)

CAUTION

Be sure to connect the large pipe after connecting the small pipe completely.

(2)Outdoorunitside

Tighten the are nut of the connection pipe at the outdoor unit valve connector. The

tightening method is the same as that as at the indoor side.

Fig.28

(Small pipe)

Connection pipe

(Large pipe)

2-way valve

3-way valve

Flare nut

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5.4.Vacuumprocess

1.VACUUM

(1) Remove the cap, and connect the gauge manifold and the vacuum pump to the

charging valve by the service hoses.

(2) Vacuum the indoor unit and the connecting pipes until the pressure in them lowers to

below 1.5 mmHg.

(3) Disconnect the service hoses and t the cap to the charging valve (Tightening torque:

70 to 90 kgf·cm).

(4) Remove the blank caps, and fully open the spindles of the 2-way and 3-way valves

with a hexagon wrench (Torque: 2-way valve: 70 to 90 kgf·cm, 3-way valve: 100 to

120 kgf·cm).

(5) Tighten the blank caps of the 2-way valve and 3-way valve to the specied torque

(200 to 250 kgf·cm).

Fig.29

Refrigerant pipe

Outdoor unit

Service hose

with valve

core

Blank cap

Hexagon wrench

Use a 4 mm

hexagon wrench.

3-way valve

Cap

Charging

valve

Fig.30

Gauge manifold

Vacuum pump

Service hose

2.ADDITIONALCHARGE

Refrigerant suitable for a piping length of 7.5 m is charged in the outdoor unit at the fac-

tory.

When the piping is longer than 7.5 m, additional charging is necessary.

For the additional amount, see the table below.

Table5

Pipe length

7.5 m

(25 ft)

10 m

(33 ft)

15 m

(49 ft)

20 m

(66 ft)

25 m

(82 ft)

Additional

refrigerant

Heat & Cool

(Reverse cycle)

None

100 g

(3.5 oz)

300 g

(10.6 oz)

500 g

(17.6 oz)

700 g

(24.7 oz)

Cooling model None

50 g

(1.8 oz)

150 g

(5.3 oz)

250 g

(8.8 oz)

350 g

(12.3 oz)

Between 7.5 m and 25 m, when using a connection pipe other than that in the table,

charge additional refrigerant with 40 g (1.4 oz)/1 m (3.3 ft) (Reverse cycle model), 20 g

(0.71 oz)/1 m (3.3 ft) (Cooling model) as the criteria.

CAUTION

When charging the refrigerant, always use a measuring cylinder.

Add refrigerant from the charging valve after the completion of the work.

5.5.Gasleakageinspection

CAUTION

After connecting the piping, check the joints for gas leakage with gas leak detector.

5.6.Installingthecouplerheatinsulation

After checking for gas leaks, insulate by wrapping insulation around the two parts (large

and small) of the indoor unit coupling, using the coupler heat insulation.

After installing the coupler heat insulation, wrap both ends with vinyl tape so that there is

no gap.

Fig.31

CAUTION

Must t tightly against body without any gap.

Body

Coupler heat

insulation

Be sure to overlap

the insulation

Coupler heat insulation

No gap

6. ELECTRICALWIRING

CAUTION

Before starting work, check that power is not being supplied to the outdoor unit.

Match the terminal board numbers and connection cord colors with those of the indoor

unit side.

Erroneous wiring may cause burning of the electric parts.

Connect the connection cords and the power supply cord rmly to the terminal board.

Imperfect installation may cause a re.

Always fasten the outside covering of the connection cord and the power supply cord

with cord clamps. (If the insulator is chafed, electric leakage may occur.)

Always connect the ground wire.

HOWTOCONNECTWIRINGTOTHETERMINALS

Forstrandwiring

(1) Use ring terminals with insulating sleeves as shown in the gure below to connect to

the terminal block.

(2) Securely clamp the ring terminals to the wires using an appropriate tool so that the

wires do not come loose.

(3) Use the specied wires, connect them securely, and fasten them so that there is no

stress placed on the terminals.

(4) Use an appropriate screwdriver to tighten the terminal screws.

Do not use a screwdriver that is too small, otherwise, the screw heads may be

damaged and prevent the screws from being properly tightened.

(5) Do not tighten the terminal screws too much, otherwise, the screws may break.

(6) See the Table 6 for the terminal screw tightening torques.

Fig.32

Strip 10 mm (13/32")

Ring terminal

Sleeve

Screw with

special washer

Ring terminal

Terminal board

Terminal block

Wire

Screw with

special washer

Ring terminal

Wire

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WARNING

Use ring terminals and tighten the terminal screws to the specied torques, otherwise,

abnormal over-heating may be produced and possibly cause heavy damage inside the

unit.

Table6

Tighteningtorque

M4 screw 10 to 16 in.lbs (12 to 18 kgf·cm)

1.INDOORUNITSIDE

(1) Remove the control box cover and cover (wire) B and install the connection cord.

Fig.33

Cover (wire) B

Control box cover

(2) After wiring is complete, clamp the remote controller cord and connection cord with the

cord clamp.

(3) Install the control box cover and cover (wire) B.

Fig.34

Cord clamp

Connection cord

(To the outdoor unit)

Remote controller cord

Fig.35

Connection

cord

Terminal board

(Indoor unit)

Remote

controller

Black

White

Red

Terminal

board

Outdoor

unit

Ceilingheightsetting

Set the DIP switch for the ceiling height according to the table below.

Table7

Ceiling height

(m)

DIP-SW4

1 2 3

2.5 ~ 3.0 Normal — OFF OFF

3.0 ~ 3.5 High ceiling 1 — ON OFF

More than 3.5 High ceiling 2 — OFF ON

Less than 2.5 Low ceiling — ON ON

Fig.36

SW 4

SW 1

DIP switch

(SW4)

Indoor unit

PC board

Indoor unit PC board

CAUTION

If the setting for a low ceiling is selected, the capacity of the air conditioner decreases

slightly.

Do not set any switches other than those specied in this sheet. The air conditioner

may not operate correctly if any switches other than those specied are changed.

2.OUTDOORUNITSIDE

(1) Remove outdoor unit terminal cover and connect the power supply cord and the

outdoor unit connection cord wired at the indoor unit.

(2) Fasten the power supply cord and connection cord with cord clamp as shown in

(Fig. 37).

Fig.37

L N 1

2(N)

Terminal board

Power supply cord

Connection cord

Cord clamp

Control box

Remote controller

Indoor unit

side terminal

Outdoor unit

side terminal

Power line

Control line

EARTH

Power supply

Black

White

Red

(3) Install the terminal cover and valve cover.

Fig.38

[TYPEA]

Terminal

cover

Valve

cover

[TYPEB]

Terminal

cover

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7. GRILLEINSTALLATION

BLOWERCOVERINSULATION

Install the blower cover insulation only when the outlet direction is not specied.

Two blower cover insulations are packed with the indoor unit.

Install the blower cover insulation at the diffuser position shown in Fig. 39. At this time, use

the piping position as the criteria.

Fig.39

Panel

base

Drain

pan

Blower cover

insulation

(Piping direction)

2 directions example

A-A Section view

INSTALLINGTHEINTAKEGRILLE

(1) Mount the grille hinge wire to the hook shaft as shown in Fig. 40.

Fig.40

• Latch the grille hinge wire to the hook shaft, and fasten.

Fig.41PartAdetailview

Fig.42PartAsectionview

Hook shaft

Grille hinge

wire

(2) Install the hook wire.

• Pass the hook wire through the panel base from the rear side as shown in Fig. 43,

and fasten to the reinforced metal tting of the intake grille using a screw.

Fig.43

RFM (grille)

Hook wire

Fig.44Sectionview

Hook wire

Screw

(3) Loosen the screw, put the loop of the hook wire over it, and tighten the screw again.

CAUTION

Install the intake grille hook wire to the grille assembly. If it falls, it may cause injuries.

(4) Bring up the intake grille by pushing it up at an angle as shown in Figs. 45, 46, and

fasten.

Fig.45

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Fig.46

8. POWER

WARNING

The rated voltage of this product is 220-240 V 50 Hz.

Before turning on verify that the voltage is within the 198 to 264 V range.

Always use a special branch circuit and install a special receptacle to supply power to

the air conditioner.

Use a special branch circuit breaker and receptacle matched to the capacity of the air

conditioner. (Install in accordance with standard.)

Perform wiring work in accordance with standards so that the air conditioner can be

operated safely and positively.

Install a leakage special branch circuit breaker in accordance with the related laws

and regulations and electric company standards.



CAUTION

When the voltage is low and the air conditioner is difcult to start, contact the power

company the voltage raised.

9. REMOTECONTROLLERINSTALLATION

9.1.Electricalrequirement

When connecting the remote controller use the following wiring.

Cable Cablesize Remarks

Remote controller cable

22AWG

Sheathed PVC cable,

Polar 3 core

Use Sheathed PVC cable in

accordance with local rules

for cable.

* We recommend that you purchase our service parts for the remote controller cable.

Contact service personnel to purchase this.

9.2.Dimensions

120

4.5

Hole

15.3

4.5

45.3

63.5

83.5

33.5

4.5

12.5

Hole × 3

Hole × 2

Unit: mm

9.3.Nameofparts

• With cover open

Display panel

• Display panel

13 14 15 16

19 20 21



“ ”, “ ” (Set Temperature Button)



“ ” (Timer Mode/Clock Adjust Button)



“ ” (Day/Day OFF Button)



“ ”, “ ” (Set Time Button)



“ ” (Timer Delete Button)



“ ” (Timer Set Button)



“ ” (Start/Stop Button)



“ ” (Mode Button)



“ ” (Fan Control Button)



“ ” (Horizontal airow direction and swing Button)



“ ” (Vertical airow direction and swing Button)



Operation Lamp



Day Display



Operation Lock Display



Temperature Display



Fan Speed Display



Timer Mode Display



Operation Mode Display



Timer and Clock Display



Vertical Swing Display



Defrost Display

9.4.Installation

Open the operation panel on the front of the remote controller, remove the 2 screws

indicated in the following gure, and then remove the front case of the remote controller.

When installing the remote controller, remove the connector from the front case.

The wires may break if the connector is not removed and the front case hangs down.

When installing the front case, connect the connector to the front case.

Fig.47

SET BACK

Front case

(back side)

Rear case

Screws

Connector

When remote controller cable is embedded

(1) Embed the remote controller cable and box.

(2) Pass the remote controller cable through the hole in the rear case and connect the

remote controller cable to the remote controller terminal board specied in Fig. 48.

(3) Clamp the remote controller cable sheath with the binder as shown in Fig. 48.

(4) Cut off the excess binder.

(5) Install the rear case to the wall, box, etc., with 2 screws (Fig. 49).

(6) Clamp the remote controller cord to a wall, etc. with the remote controller cord clamp

furnished (Fig. 50).

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Fig.48

1. 12V

(Red)

2. Signal

(White)

3. COM

(Black)

7 7 7

Unit : mm

1. 12V

(Red)

Hole

Binder

2. Signal

(White)

3. COM

(Black)

CAUTION

When connecting the remote

controller cables, do not over

tighten the screws.

Fig.49[Example]

Remote controller

cable

Connector

Screws

Rear

case

Box

Remote controller

Wrap the connector and remote controller

cables with vinyl tape or some other type

of insulation as shown in the gure.

Earth (Ground) the remote controller if it has an earth (a ground) cable.

Fig.50

Remote controller cord

Remote controller

cord clamp

Tapping screw (ush heads)

9.5.SettingtheDIPswitch

CAUTION

Install the remote controller wires so as not to be direct touched with your hand.

Do not touch the remote controller PC board and PC board parts directly with your

hands.

Set the remote controller DIP switches.

Set DIP switch 1 - NO.6 to ON.

For the other switch, set it according to the situation.

[Example]

Front case (back side)

OFF ON

DIP switch 1

Do not use this

DIP switch 2

NO.

Switchstate

Detail

OFF ON

DIP switch 1

Group control setting

Refer to NUMBER OF CONNECTED

UNITS

5 Invalidity

Validity

Auto Restart

Invalidity

Validity

Memory backup setting

* Set to ON to use batteries for the

memory backup. If batteries are not

used, all of the settings stored in

memory will be deleted if there is a

power failure.

NUMBEROFCONNECTEDUNITS

Indoor Unit

Address

SW1-1 SW1-2 SW1-3 SW1-4

Single OFF OFF OFF OFF

1 OFF OFF OFF ON

2 OFF OFF ON OFF

3 OFF OFF ON ON

4 OFF ON OFF OFF

5 OFF ON OFF ON

6 OFF ON ON OFF

7 OFF ON ON ON

8 ON OFF OFF OFF

9 ON OFF OFF ON

10 ON OFF ON OFF

11 ON OFF ON ON

12 ON ON OFF OFF

13 ON ON OFF ON

14 ON ON ON OFF

15 ON ON ON ON

(

Factory setting)

9.6.ConnectionofRemoteControllerCable

CAUTION

When connecting the remote controller cable to the wall mounted type and the oor

type indoor unit, do not connect it to the outdoor unit or the indoor unit power terminal

block. It may cause a failure.

M4 screw

Terminal block

Black

Indoor unit

side

* Earth (Ground) the remote

controller if it has an earth

(a ground) wire.

White

Red

Remote controller

cable

Remote controller

terminal block

Outdoor unit /

power supply

terminal block

Indoor unit

PCB

It may be failed if it is connected to the outdoor unit or the terminal block for power

supply.

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10.SPECIALINSTALLATIONMETHODS

10.1. Groupcontrol

• One remote controller can control up to 16 air conditioners.

• All the air conditioners can be operated with the same setting.

WIRINGMETHOD

(1) Wire each air conditioner (power cord·indoor and outdoor units connection cord)

individually.

For details, refer to the ELECTRICAL WIRING section of the installation instruction

sheet.

(2) Connect the bus wire between the indoor units to [REMOTE CONTROLLER 2, 3] of

the indoor unit terminal board.

(3) Install the remote controller to only one air conditioner and remove the remote

controller of the other air conditioners.

Indoor unit 0

Remote

controller

cord

Bus wire

Remote controller

Indoor unit 1 Indoor unit 2 Indoor unit 15

BUSWIRE

• Use wire having a cross sectional area of 0.75 mm

• Make the total length of the bus wire (including the remote controller cord) 500 m or less.

(4) Fasten the bus wire with a binder

(large) as shown at the right.

Binder (large)

Bus wire

UNITNO.SETTINGMETHOD

(Performedatindoorunit)

(1) Remove the electric parts box.

(2) Turn off the main power.

(3) Set the unit number with the rotary switch on the indoor unit PC board so it is not

duplicated. (Unit No. 0-15)

(4) After setting the unit number, restore the electric parts box.

Rotary switch

Indoor unit PC

board

Rotary switch

DIP switch

[SW1]

(Performedbyremotecontroller)

(1) Set remote controller DIP switch 1 [1~4] .

10.2. Autorestart

SETTINGMETHOD

(Performedbyremotecontroller)

(1) Turn off the main power.

(2) Set remote controller DIP switch 1 [5] to [ON].

10.3. Memorybackupfunction

This function starts operation in accordance with the contents before operation was

stopped by pressing of the START/STOP button when the power supply to the air

conditioner was stopped and restarted by a power failure, switch, etc.

• MEMORY BACKUP FUNCTION use in the state in which the remote controller case top

is removed, set DIP switch 1 [6] of the remote controller to the [ON] position.

11.TESTRUN

Checkitems

(1) Is operation of each button on the remote control unit normal?

(2) Does each lamp light normally?

(3) Do airow direction louvers operate normally?

(4) Is the drain normal?

(5) Do not have an abnormal noise and vibration during operation?

Do not operate the air conditioner in test run for a long time.

[Operationmethod]

(1) If the operation lamp is on, press the START/STOP button to turn it off.

(2) Press the “

” button and “ ” button at the same time for more than

2 seconds to start the test operation.

The operation lamp will light up and “

” will be displayed on the set temperature

display.

* Pressing the START/STOP button will stop the test operation.

Test operation display

Run [Self-Diagnosis] if [EE: EE] ashes on the clock display of the remote controller.

SELF-DIAGNOSIS

(1) Stop the air conditioner operation.

(2) Press the Set Temperature buttons

and at the

same time for more than 5 seconds to start the

self-diagnosis.

* For information on the error codes, refer to the

installation manualfor the indoor unit.

(3) Press the Set Temperature buttons

and at the

same time to stop the self-diagnosis.

Example: Self-diagnosis check

Unit number (usually “00”)

Error code

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Table8

Error Code Error contents

Communication error

(indoor unit remote controller)

Communication error

(indoor unit outdoor unit)

Room temperature sensor open

Room temperature sensor shortcircuited

Indoor heat exchanger temperature sensor open

Indoor heat exchanger temperature sensor shortcircuited

Outdoor heat exchanger temperature sensor open

Outdoor heat exchanger temperature sensor shortcircuited

Power source connection error

Float switch operated

Outdoor temperature sensor open

Outdoor temperature sensor shortcircuited

Discharge pipe temperature sensor open

Discharge pipe temperature sensor shortcircuited

Outdoor high pressure abnormal

Discharge pipe temperature abnormal

Model abnormal

Indoor fan abnormal

Outdoor signal abnormal

Outdoor EEPROM abnormal

[OUTDOORUNIT]

When the outdoor temperature drops, the outdoor unit’s fans may switch to low speed.

ERROR:HEAT&COOLMODEL(REVERSECYCLE)ONLY

The LED lamps operate as follows (Table 9) according to the error contents.

Table9

Errordisplay

Errorcontents

LED1 LED2

0.1 sec.

OFF

0.1 sec.

OFF

Model abnormal or

EEPROM abnormal

Quick ash continued Quick ash continued

0.5 sec.

2 sec.

OFF

Power source

connection error

1 quick ash repeated Lighting continued

0.5 sec.

2 sec.

OFF

Discharge temperature

sensor error

2 quick ash repeated Lighting continued

0.5 sec.

2 sec.

OFF

Outdoor heat exchanger

temperature sensor error

3 quick ash repeated Lighting continued

4 quick ash repeated Lighting continued

Outdoor temperature

sensor error

5 quick ash repeated Lighting continued Communication signal error

6 quick ash repeated Lighting continued Indoor unit error

7 quick ash repeated Lighting continued

Discharge temperature

abnormal

8 quick ash repeated Lighting continued High pressure abnormal

When the fault is cleared, the LED lamp goes off.

However, for discharge pipe temperature abnormal and high pressure abnormal, the LED

lamp lights continuously for 24 hours, as long as the power is not turned off.

[CHECKINGDRAINAGE]

To check the drain, remove the water cover and ll with 2 to 3Rof water as shown in

Fig. 51.

The drain pump operates when operating in the cooling mode.

Fig.51

Drain pipe

Watering pot

Water cover

12.OPENINGTHEDUCTCONNECTIONHOLE

Fig.52

Distribution duct Fresh air

Distribution duct

CAUTION

When performing hole opening work, be careful not to damage the drain pan.

When connecting the distribution duct, to make the air ow easily, block the outlet

port with the blower cover insulation as shown by the hatched lines in Fig. 52. For the

blocking direction, refer to Fig. 39.

1.DIMENSION

Screw position and connection hole which are fresh air duct and distribution duct.

Fig.53

P. D 120 P. D 88

12-ø3.3 self tapping screw holes (for 4 mm)

ø70

ø100

45°

160 334.2

113

45°

Unit: mm

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2.DISTRIBUTIONDUCTANDFRESHAIRDUCTHOLEPROCESSING

Use the distribution duct hole and fresh air duct hole by removing the insulation material as

shown below.

Fig.54

Cut

Cabinet

• Cut off the part (Cabinet) indicated by the arrow in the Fig. 54 with nippers, needle nose

pliers, etc.

Fig.55

Knife

Insulation

(Inner box)

Cabinet

• Open the holes and cut the insulation with a knife.

* Be careful not to damage the internal parts.

* Be careful not to cut yourself on the cutout in the metal plate.

* Please remove the insulation (inner box) left over after cutting.

• Connect the distribution duct.

* When mounting the duct, block the gap so that there is no cold air leakage.

* Insulate the duct and cut connection.



CAUTION

The air conditioner cannot take in fresh air by itself. When connecting a fresh air duct,

always use a duct fan.

13.CUSTOMERGUIDANCE

Explain the following to the customer in accordance with the operating manual:

(1) Starting and stopping method, operation switching, temperature adjustment, timer, air

ow switching, and other remote controller unit operations.

(2) Cleaning and maintenance of the product, and other items such as air lters and air

louvers if applicable.

(3) Give the operating and installation manuals to the customer.

(4) If the signal code is changed, explain to the customer how it changed (the system

returns to signal code A when the batteries in the remote controller unit are replaced).

*(4) is applicable to using wireless remote controller.

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Fujitsu AUG25ALD-W Installation guide

Brand: Fujitsu

Model: AUG25ALD-W

Category: Split-system air conditioners

Type: Installation guide

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Fujitsu AUG25ALD-W Installation guide

Fujitsu AUG25ALD-W Installation guide

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