Fujitsu ARXB18L, ARXB07L Installation Manual

VRF SYSTEM
INDOOR UNIT
Duct Type

INSTALLATION MANUAL

For authorized service personnel only.

English

Contents

1. SAFETY PRECAUTIONS .............................................2

2. ABOUT THE UNIT

2.1. Precautions for using the R410A refrigerant .......... 2

2.2. Special tool for R410A ............................................ 2

2.3. Accessories ............................................................ 2

2.4. Optional parts ......................................................... 3

3. INSTALLATION WORK

3.1. Selecting an installation location ............................ 3

3.2A. Installation dimensions (Ceiling concealed type) . 4

3.2B. Installation dimensions (Floor standing concealed

type) ..................................................................... 4

3.3A. Installation the unit (Ceiling concealed type) ....... 5

3.3B. Install the unit (Floor standing concealed type) ... 6

4.

PIPE INSTALLATION

4.1. Selecting the pipe material ..................................... 8

4.2. Pipe requirement .................................................... 8

4.3. Flare connection (Pipe connection)........................ 8

4.4. Installing heat insulation ....................................... 10

5. INSTALLING DRAIN PIPES ........................................ 10

6. ELECTRICAL WIRING

6.1. Electrical requirement .......................................... 12

6.2. Wiring method ...................................................... 13

6.3. Unit wiring ............................................................ 13

6.4. Connection of wiring ............................................. 14

6.5. Air fl ow changing .................................................. 14

7. FIELD SETTING

7.1. Setting the address .............................................. 15

7.2. Custom code setting ............................................ 16

7.3. Fuction setting ...................................................... 16

8. TEST OPERATION

8.1. Test operation using PCB (Outdoor unit) ............. 17

8.2. Test operation using Remote Controller ............... 17

9. CHECK LIST ............................................................... 17

10. ERROR CODES ......................................................... 18

PART NO. 9374342037-02

1. SAFETY PRECAUTIONS

2.2. Special tool for R410A

• Be sure to read this Manual thoroughly before installation.

• The warnings and precautions indicated in this Manual
contain important information pertaining to your safety. Be
sure to observe them.

• Hand this Manual, together with the Operating Manual to
the customer.

Request the customer to keep them on hand for future

use, such as for relocating or repairing the unit.

This mark indicates procedures which, if

WARNING!

improperly performed, might lead to the
death or serious injury of the user.

• Request your dealer or a professional installer to install the
unit in accordance with this Manual.

An improperly installed unit can cause serious accidents

such as water leakage, electric shock, or fi re.

If the unit is installed in disregard of the instructions in the

Installation Manual, it will void the manufacturer’s warranty.

• Do not turn ON the power until all work has been completed.

Turning ON the power before the work is completed can

cause serious accidents such as electric shock or fi re.

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

If the refrigerant comes in contact with a fl ame, it produces a

toxic gas.

• Installation work must be performed in accordance with
national wiring standards by authorized personnel only.

WARNING

• To install a unit that uses the R410A refrigerant, use
dedicated tools and piping materials that have been
manufactured specifi cally for R410A use.

Because the pressure of the R410A refrigerant is

approximately 1.6 times higher than the R22, failure to use
dedicated piping material or improper installation can cause
rupture or injury.

Furthermore, it can cause serious accidents such as water

leakage, electric shock, or fi re.

Tool name Contents of change

• Pressure is huge and cannot be
measured with a conventional gauge.
To prevent erroneous mixing of other
refrigerants, the diameter of each port

Gauge manifold

has been changed.

It is recommended to use a gauge

manifold with a high pressure display
range –0.1 to 5.3 MPa and a low
pressure display range –0.1 to 3.8 MPa.

• To increase pressure resistance, the

Charging hose

hose material and base size were
changed.

• A conventional vacuum pump can be

Vacuum pump

used by installing a vacuum pump
adapter.

This mark indicates procedures which,

CAUTION!

if improperly performed, might possibly
result in personal harm to the user, or
damage to property.

2. ABOUT THE UNIT

2.1. Precautions for using the R410A
refrigerant

WARNING

• Do not introduce any substance other than the prescribed
refrigerant into the refrigeration cycle.

If air enters the refrigeration cycle, the pressure in the

refrigeration cycle will become abnormally high and cause
the piping to rupture.

• If there is a refrigerant leakage, make sure that it does not
exceed the concentration limit.

If a refrigerant leakage exceeds the concentration limit, it can

lead to accidents such as oxygen starvation.

• Do not touch refrigerant that has leaked from the refrigerant
pipe connections or other area. Touching the refrigerant
directly can cause frostbite.

• If a refrigerant leakage occurs during operation, immediately
vacate the premises and thoroughly ventilate the area.
If the refrigerant comes in contact with a flame, it produces a
toxic gas.

Gas leakage

detector

• Special gas leakage detector for HFC
refrigerant R410A.

2.3. Accessories

WARNING

• For installation purposes, be sure to use the parts supplied
by the manufacturer or other prescribed parts.

The use of non-prescribed parts can cause serious accidents

such as the unit to fall, water leakage, electric shock, or fi re.

• The following installation parts are furnished. Use them as
required.

• Keep the Installation Manual in a safe place and do not

discard any other accessories until the installation work has

been completed.

Do not discard any accessories needed for installation until
the installation work has been completed.

En-2

Name and Shape Q’ty Application

Operating Manual

1

Name and Shape Q’ty Application

Binder

Medium

For power supply and
transmission and remote

3

control cable binding.

Large4For fixing the coupler

heat insulation.

Installation Manual

Installation
template

Hanger

Tapping screw
(M4 × 10mm)

Special nut A
(Large flange)

(This book)

1

For positioning the indoor
unit

1

For suspending the
indoor unit

4

For installing the hanger

8

For suspending the
indoor unit from ceiling

4

Filter

Wire

1

2

3

4

5

Insulation
(Outlet)

Joint hose

Band

Drain hoseinsulation B

2

(AR7/9)

3

(AR12/14/18)

Use for static pressure
under 25 Pa.

1

2

For outlet flange

(Small)

2

(Large)

For connecting the drain
pipe

1

For fixing the joint hose

1

To insulate the joint hose

1

Special nut B
(Small flange)

For suspending the
indoor unit from ceiling

4

For fixing the indoor unit
on the floor.

Coupler
heat insulation

For indoor side pipe joint
(Large pipe)

(Large)

1

Coupler
heat insulation

For indoor side pipe joint
(Small pipe)

(Small)

1

2.4. Optional parts

The following options are available.

• DRAIN PUMP UNIT: UTR-DPB241 (P/N 9034087001)

When installing, please refer to the installation manual of
each optional part.

3. INSTALLATION WORK

3.1. Selecting an installation location

Especially, the installation place is very important for the split
type air conditioner because it is very diffi cult to move from
place to place after the fi rst installation.

WARNING

• Select installation locations that can properly support the
weight of the indoor. Install the units securely so that they do
not topple or fall.

En-3

CAUTION

• Do not install the unit in the following areas:

• Area with high salt content, such as at the seaside.
It will deteriorate metal parts, causing the parts to fall or the

unit to leak water.

• Area fi lled with mineral oil or containing a large amount of
splashed oil or steam, such as a kitchen.

It will deteriorate plastic parts, causing the parts to fall or

the unit to leak water.

• Area that generates substances that adversely affect the
equipment, such as sulfuric gas, chlorine gas, acid, or
alkali.

It will cause the copper pipes and brazed joints to corrode,

which can cause refrigerant leakage.

• Area that can cause combustible gas to leak, contains
suspended carbon fibers or flammable dust, or volatile
infl ammables such as paint thinner or gasoline.

If gas leaks and settles around the unit, it can cause a fi re.

• Area where animals may urinate on the unit or ammonia
may be generated.

• Do not use the unit for special purposes, such as storing
food, raising animals, growing plants, or preserving precision
devices or art objects.

It can degrade the quality of the preserved or stored objects.

• Do not install where there is the danger of combustible gas
leakage.

• Do not install the unit near a source of heat, steam, or
fl ammable gas.

• Install the unit where drainage does not cause any trouble.

• Install the indoor unit, outdoor unit, power supply cable,
transmission cable, and remote control cable at least 1 m
away from a television or radio receivers. The purpose of this
is to prevent TV reception interference or radio noise.

(Even if they are installed more than 1 m apart, you could still

receive noise under some signal conditions.)

• If children under 10 years old may approach the unit, take
preventive measures so that they cannot reach the unit.

• Decide the mounting position with the customer as
follows:

(1) Install the indoor unit on a place having a suffi 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.

(4) A place from where the air can be distributed evenly

throughout the room by the unit.

(5) Install the unit where connection to the outdoor unit is easy.

(6) Install the unit where the connection pipe can be easily

installed.

(7) Install the unit where the drain pipe can be easily installed.

(8) Install the unit where noise and vibrations are not amplifi ed.

(9) Take servicing, etc., into consideration and leave the spaces.

Also install the unit where the fi lter can be removed.

3.2A. Installation dimensions (Ceiling
concealed type)

Provide a service hole for inspection purposes.
Do not place any wiring or illumination in the service space,
as they will impede service.

Installation Dimensions

Strong and durable ceiling

Left
side

150 mm
or more

※1

400mm or more when drain from drain pipe

300 mm

or more

Service space

Indoor unit Right

400 mm

100 mm

or more

or more

※1

Unit

side

Service hole

Control
box

400 mm
or more

3.2B. Installation dimensions (Floor
standing concealed type)

The fl oor standing concealed type requires a temperature
correction setting. Perform this in “7. FIELD SETTING”.

Left side

Right side
(PIPE side)

Inlet
air

En-4

Strong and durable fl oor

150 mm

※1

or more

※1

400mm or more when drain from drain pipe

400 mm
or more

30 mm
or more

30 mm
or more

3.3A. Installation the unit (Ceiling
concealed type)

WARNING

• Install the air conditioner in a location which can withstand
a load do at least fi 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 injuries.

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

3.3A.1. UNIT INSTALLATION EXAMPLE (CEILING
CONCEALED TYPE)

Side Inlet - Side Outlet

3.3A.2. INSTALL THE FILTERS

• Install the fi lters to the unit.

Filter (Accessories)

Duct (Field supply)

Intake grill (Field supply)

Air

Bottom Inlet - Side Outlet
Replace the cover as follows.

• Remove the 4 tapping screws, and then remove cover.

• Install the cover with the 4 tapping screws as shown in the

illustration below.

Tapping screw

Cover

Duct (Field supply)

AR07/09: 2 fi lters
AR12/14/18: 3 fi lters

Unit

Filter

3.3A.3. DRILLING HOLES FOR BOLTS AND
INSTALLING THE BOLTS

• Using the installation template, drill holes for bolts (4
holes).

Installation template

Intake grill (Field supply)

Air

CAUTION

• To prevent people from touching the parts inside the unit, be
sure to install grilles on the inlet and outlet ports. The grilles
must be designed in such a way that cannot be removed
without tools.

• When connecting the duct to the outlet port of the indoor unit,
be sure to insulate the outlet port and the installation screws
to prevent water from leaking around the port.

• Set the static pressure outside the unit to 50 Pa or less (the
allowable range is between 0 and 50 Pa).

AR07/09 models

Air

596

390

Drilling position
for bolts

AR12/14/18 models

Air

390

886

En-5

3.3A.4. INSTALLING THE HANGERS

• Fasten the hanging bolts to the ceiling and install special
nuts A and B.

• Install the hangers (Accessories) to the unit (4 places).

Hanger

If using the right drain port

OK

NO GOOD

10 mm or less

Air

• Hang the unit.

Pass the hanging bolts through the hangers (4 places).

Hanger (Accessories)

Tapping screw
(Accessories)

Hanger bolt Hanger

Special nut A
(Accessories)

Unit

If using the left drain port

10 mm or less

Level

Air

OK NO GOOD

10 mm or less

3.3B. Install the unit (Floor standing
concealed type)

OKNO GOOD

Special nut B
(Accessories)

CAUTION

• Leave a space of 100 mm or more between the inlet port and
the ceiling.

• Fasten the unit securely with Special units A and B.

3.3A.5. LEVELING

Base horizontal direction leveling on top of the unit.

Ceiling

Level

Right drain port Left drain port

CAUTION

• To prevent people from touching the parts inside the unit, be
sure to install grilles on the inlet and outlet ports. The grilles
must be designed in such a way that cannot be removed
without tools.

• When connecting the duct to the outlet port of the indoor unit,
be sure to insulate the outlet port and the installation screws
to prevent water from leaking around the port.

• Set the static pressure outside the unit to 50 Pa or less (the
allowable range is between 0 and 50 Pa).

3.3B.1. INSTALL THE FILTERS

• Remove the 4 tapping screws, and then remove cover.

• Install the cover with the 4 tapping screws as shown in the
illustration below.

Tapping screw

Cover

En-6

• Install the fi lters (Accessories) to the unit.

3.3B.3. DRILLING HOLES FOR BOLTS AND
INSTALLING THE BOLTS

• Drilling position for bolts.

Filter

AR07/09: 2 fi lters
AR12/14/18: 3 fi lters

Unit

Filter

3.3B.2. INSTALLING THE HANGERS

• Install the hangers (Accessories) to the unit (4 places).

AR07/09 models

596 mm

AR12/14/18 models

886 mm

CAUTION

Secure with an M10 anchor bolts. If securing the unit to the
fl oor is diffi cult, fi rst build a stand or platform.

• Bolt dimensions

M10

30 to 50 mm

3.3B.4. INSTALL THE UNIT

• Fix the unit.

Install the unit and fasten with special nut B.

170 mm

170 mm

Hanger

Special nut B
(Accessories)

Unit

3.3B.5. LEVELING

Base horizontal and vertical direction leveling on top of the
unit.

Left drain port

Right drain port

En-7

If using the right drain port

If using the left drain port

NO GOOD

10 mm or less

10 mm or less

Thicknesses of Annealed Copper Pipes (R410A)

Pipe outside diameter [mm (in.)] Thickness [mm]

6.35 (1/4) 0.80

9.52 (3/8) 0.80

12.70 (1/2) 0.80

15.88 (5/8) 1.00

NO GOODOK

19.05 (3/4) 1.20

4.2. Pipe requirement

CAUTION

• Refer to the Installation Manual of the outdoor unit for
description of the length of connecting pipe or for difference
of its elevation.

OK

• Use pipe with water-resistant heat insulation.

4. PIPE INSTALLATION

CAUTION

• Be more careful that foreign matter (oil, water, etc.) does
not enter the piping than with refrigerant R410A models.
Also, when storing the piping, securely seal the openings by
pinching, taping, etc.

• While welding the pipes, be sure to blow dry nitrogen gas
through them.

4.1. Selecting the pipe material

CAUTION

• Do not use existing pipes.

• Use pipes that have clean external and internal sides without
any contamination which may cause trouble during use,
such as sulfur, oxide, dust, cutting waste, oil, or water.

• It is necessary to use seamless copper pipes.

Material : Phosphor deoxidized seamless copper pipes
It is desirable that the amount of residual oil is less than

40 mg/10 m.

• Do not use copper pipes that have a collapsed, deformed,
or discolored portion (especially on the interior surface).
Otherwise, the expansion valve or capillary tube may
become blocked with contaminants.

• Improper pipe selection will degrade performance. As an air
conditioner using R410A incurs pressure higher than when
using conventional refrigerant, it is necessary to choose
adequate materials.

•

Thicknesses of copper pipes used with R410A are as
shown in the table.

•

Never use copper pipes thinner than those indicated in the
table even if they are available on the market.

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 specifi 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).

4.3. Flare connection (Pipe connection)

WARNING

• Tighten the flare nuts with a torque wrench using the
specifi ed tightening method. Otherwise, the fl are nuts could
break after a prolonged period, causing refrigerant to leak
and generate a hazardous gas if the refrigerant comes into
contact with a fl ame.

4.3.1. Flaring

• Use special pipe cutter and fl are tool exclusive for R410A.

(1)

Cut the connection pipe to the necessary length with a
pipe cutter.

(2)

Hold the pipe downward so that cuttings will not enter the

pipe and remove any burrs.

(3)

Insert the fl are nut (always use the fl are nut attached to

the indoor and outdoor units respectively) onto the pipe
and perform the fl are processing with a fl are tool. Use
the special R410A flare tool, or the conventional flare
tool. Leakage of refrigerant may result if other fl are nuts
are used.

(4)

Protect the pipes by pinching them or with tape to
prevent dust, dirt, or water from entering the pipes.

En-8

Check if [L] is flared uniformly
and is not cracked or scratched.

L

Dimension B

-00.4

[mm]

9.1

Die

Pipe outside

diameter

[mm (in.)]

6.35 (1/4)

B

A

Pipe

Dimension A [mm]

Flare tool for R410A,

clutch type

9.52 (3/8) 13.2

12.70 (1/2) 16.6

0 to 0.5

15.88 (5/8) 19.7

19.05 (3/4) 24.0

When using conventional fl are tools to fl are R410A pipes,
the dimension A should be approximately 0.5 mm more
than indicated in the table (for fl aring with R410A fl are tools)
to achieve the specifi ed fl aring. Use a thickness gauge to
measure the dimension A.

Pipe outside

diameter [mm (in.)]

Width across flats

of Flare nut [mm]

6.35 (1/4) 17

9.52 (3/8) 22

12.70 (1/2) 26

15.88 (5/8) 29

19.05 (3/4) 36

• Tighten the flare nuts with a torque wrench using the
specifi ed tightening method. Otherwise, the fl are nuts could
break after a prolonged period, causing refrigerant to leak
and generate a hazardous gas if the refrigerant comes into
contact with a fl ame.

When the fl are nut is tightened properly by your hand, hold
the body side coupling with a separate spanner, then tighten
with a torque wrench. (See the table below for the fl are nut
tightening torques.)

Tighten with two wrenches.

Holding wrench

Torque wrench

Indoor unit pipe
(Body side)

Flare nut

Connection pipe

Flare nut [mm (in.)] Tightening torque [N·m (kgf·cm)]

6.35 (1/4) dia. 16 to 18 (160 to 180)

9.52 (3/8) dia. 32 to 42 (320 to 420)

12.70 (1/2) dia. 49 to 61 (490 to 610)

15.88 (5/8) dia. 63 to 75 (630 to 750)

19.05 (3/4) dia. 90 to 110 (900 to 1,100)

Route the pipe as shown in the illustration below.

• CEILING CONCEALED TYPE

Control box cover

4.3.2. Bending pipes

•

If pipes are shaped by hand, be careful not to collapse
them.

•

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

•

When pipes are repeatedly bend or stretched, the material
will harden, making it diffi cult to bend or stretch them any
more.

•

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

CAUTION

• To prevent breaking of the pipe, avoid sharp bends.

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

4.3.3. Pipe connection

CAUTION

• Be sure to apply the pipe against the port on the indoor unit
correctly. If the centering is improper, the fl are nut cannot be
tighten smoothly. If the fl are nut is forced to turn, the threads
will be damaged.

• Do not remove the fl are nut from the indoor unit pipe until
immediately before connecting the connection pipe.

• Hold the torque wrench at its grip, keeping it in the right
angle with the pipe, in order to tighten the fl are nut correctly.

OK

Pipe

NO GOOD

• FLOOR STANDING CONCEALED TYPE

OK OK

CAUTION

• Connect the piping so that the control box cover can easily
be removed for servicing when necessary.

• In order to prevent water from leaking into the control box,
make sure that the piping is well insulated.

NO GOOD

En-9

4.4. Installing heat insulation

5. INSTALLING DRAIN PIPES

Install the heat insulation material after performing a
refrigerant leak check (see the Installation Manual for the
outdoor unit for details).

4.4.1. COUPLER HEAT INSULATION

• Insulate by the coupler heat insulation (Accessories)
around the gas pipe and liquid pipe of indoor side.

• After installing the coupler heat insulation, wrap both end
with vinyl tape so that there is no gap.

• After affi xing the coupler heat insulation, secure it with two
binders (large), one on each end of the insulation.

• Make sure that the binders overlap the heat insulation
pipe.

Coupler heat
insulation
(

Accessories

Binder (Large)
(

Accessories

• After checking for gas leaks (refer to the Installation Manual
of the outdoor unit), perform this section.

• Install heat insulation around both the large (gas) and small
(liquid) pipes. Failure to do so may cause water leaks.

Cover this portion with

)

heat insulation.

Heat insulation

)

CAUTION

Use general hard polyvinyl chloride pipe and connect it with
adhesive (polyvinyl chloride) so that there is no leakage.
Always heat insulate the indoor side of the drain hose.
Use a drain pipe that matches the size of the drain hose
(Table A).

• Do not perform a rise, trap and air bleeding.

• Provide a downward gradient (1/100 or more).

• Provide supporters when long pipes are installed.

• Use an insulation material as needed, to prevent the pipes
from freezing.

• Install the pipes in a way that allows for the removal of the
control box.

Table A

O.D.

Drain pipe 32 mm(VP25)

• CEILING CONCEALED TYPE

Outlet air
fl ow

OK

Arrange the drain hose
lower than this port.

OK

Drain hose

1.5 to 2 m

NO GOOD NO GOOD Rise

Trap

Supporter

Air bleeding

NO GOOD

• FLOOR STANDING CONCEALED TYPE

4.4.2. INSULATION (OUTLET)

When not using the air outlet duct, install the insulation
(outlet) on the air outlet fl ange. (Fig. A)

Install the small pieces of insulation (outler/small) on the

1

left and right sides of the air outlet fl ange.

Install the large pieces of insulation (outler/large) on the

2

upper and lower sections of the air outlet fl ange.

Fig. A

Insulation (Outlet)
(Small)
(Accessories)

1

2

A

Insulation (Outlet)
(Large)
(Accessories)

Failure to install the insulation may cause water leaks.

1

2

CAUTION

View B

View A

0 mm

0 mm

0 mm

0 mm

NO GOOD

• Installation method of Joint hose

CAUTION

• Be sure to connect the pipes for drainage without leakage.

• To avoid condensation and dripping, always insulate the
indoor drain pipe.

(1) Be sure to use supplied Joint hose 1 and Band 2

(When using the Drain hole on the other side of the unit,
installation work is the same.)

0 mm

Rise

NO GOODOK

En-10

2

Band

Joint hose

1

(4) After checking for drainage, attach the Drain hose

insulation B 3 to insulate, following the instructions as in
the figures.
To avoid space with Joint hose 1 and Band 2, press
firmly the Drain hose insulation B 3.

Drain
hole

Hard PVC side

(2) Be sure to insert Joint hose 1 to the very end of the Drain

pan of the unit with no space.

Applying

Ensure there
is no space.

Drain pan

1

Joint hose

area of
adhesive

4 mm or less

Joint pipe
(Field supply)

Drain pipe (VP25)
(Field supply)

2

Band

Ensure thereis
no space.

Butt the insulation
against the unit.

STEP 1

3

Drain hose

Control box

Press firmly.

insulation B

Slit

Fasten the Band 2 at the position where the
screw is vertical.
The screw must be positioned at the rightside of
the Joint hose

1

as in the figure.

CAUTION

Do not connect to the Drain hole with adhesive. Using
adhesive may cause damage and water leaks.

(3) After installing the Joint hose 1, check if the drainage is

smooth.

Downward
gradient

2.5-5.0mm

OK

NO GOOD

Slit

Press
firmly.

STEP 2

Press
firmly.

Roll the insulation
over the joint.

STEP 3 FINISH

•

When using the drain port on the left side of the unit, remove
the drain cap and install it to the right side drain port.

Drain cap

Unit

CAUTION

To prevent excessive force on Joint hose 1, avoid bends or
twists. (To bend or twist may cause water leaks.)

CAUTION

Make sure the drain water is properly drained.

En-11

6. ELECTRICAL WIRING

WARNING

• Electrical work must be performed in accordance with this
Manual by a person certifi ed under the national or regional
regulations. Be sure to use a dedicated circuit for the unit.

An insuffi cient power supply circuit or improperly performed

electrical work can cause serious accidents such as electric
shock or fi re.

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

• For wiring, use the prescribed type of cables, connect them
securely, making sure that there are no external forces of the
cables applied to the terminal connections.

Improperly connected or secured cables can cause serious

accidents such as overheating the terminals, electric shock,
or fi re.

• Securely install the electrical box cover on the unit.

An improperly installed electrical box cover can cause

serious accidents such as electric shock or fire through
exposure to dust or water.

• Install sleeves into any holes made in the walls for wiring.
Otherwise, a short circuit could result.

• Use the included connection cables and power cables or
ones specifi ed by the manufacturer. Improper connections,
insuffi cient insulation, or exceeding the allowable current can
cause electric shock or fi re.

• Do not modify the power cables, use extension cables,
or use any branches in the wiring. Improper connections,
insuffi cient insulation, or exceeding the allowable current can
cause electric shock or fi re.

• Match the terminal block numbers and connection cable
colors with those of the outdoor unit. Erroneous wiring may
cause burning of the electric parts.

• Securely connect the connection cables to the terminal
board. In addition, secure the cables with wiring holders.
Improper connections, either in the wiring or at the ends of
the wiring, can cause a malfunction, electric shock, or fi re.

• Always fasten the outside covering of the connection cable
with the cable clamp. (If the insulator is chafed, electric
leakage may occur.)

• Install a ground leakage breaker. In addition, install the
ground leakage breaker so that the entire AC main power
supply is cut off at the same time. Otherwise, electric shock
or fi re could result.

• Install a ground leakage breaker.

If a ground leakage breaker is not installed, it may cause

electric shock or fi re.

• Always connect the ground cable.

Improper grounding work can cause electric shocks.

• Install the remote control cables so as not to be direct
touched with your hand.

• Perform wiring work in accordance with standards so that the
air conditioner can be operated safely and positively.

• Connect the connection cable fi rmly to the terminal board.
Imperfect installation may cause a fi re.

CAUTION

• Ground the unit.
Do not connect the ground cable to a gas pipe, water pipe,

lightning rod, or a telephone ground cable.

Improper grounding may cause electric shock.

• Do not connect power supply cables to the transmission or
remote control terminals, as this will damage the product.

• Never bundle the power supply cable and transmission cable
together. Bundling these cables together will cause miss
operation.

• When handling PCB, static electricity charged in the body
may cause malfunction of the PCB. Follow the cautions
below:

• Establish a ground for the indoor and outdoor units and

peripheral devices.

• Cut power (breaker) off.

• Touch metal part of the indoor and outdoor units for more

than 10 seconds to discharge static electricity charged in
the body.

• Do not touch terminals of parts and patterns implemented

on PCB.

6.1. Electrical requirement

Voltage rating 230 V

Operating range 198 - 264 V

Recommended

cable size

2

)

(mm

Power supply

cable

Transmission

cable

Remote control

cable

2.5

0.33

0.33

*: Use shielded cable in accordance with local rules for

remote control cable.

Cable type Remark

Type245
IEC57 or
equivalent

1ø 50 Hz
198–264 V
2 Cable +
ground
22 AWG LEVEL

LONWORKS
compatible
cable

4 (NEMA)
non-polar 2 core,
twisted pair solid
core diameter

0.65 mm
Sheathed PVC
cable*

Polar 3 core
Twisted pair

En-12

6.2. Wiring method

(EXAMPLE)

POWER SUPPLY

OUTDOOR UNIT

TRANSMISSION

TRANSMISSION TRANSMISSION

POWER SUPPLY

BREAKER

POWER SUPPLY

BREAKER

POWER SUPPLY

INDOOR UNIT

REMOTE CONTROL

REMOTE

CONTROL UNIT

(MASTER)

POWER SUPPLY REMOTE CONTROL POWER SUPPLY REMOTE CONTROL

POWER SUPPLY

INDOOR UNIT

BREAKER BREAKER

REMOTE

CONTROL UNIT

(SLAVE)

6.3. Unit wiring

• Before attaching the cable to terminal block.

6.3.1 Power supply cable

20 mm

INDOOR UNIT

TRANSMISSION

POWER SUPPLY

REMOTE

CONTROL UNIT

Screw with

Cable

special washer

Cable end
(Loop)

Terminal block

WARNING

Cable

Screw with
special washer

Cable end
(Loop)

• When using solid core cables, do not use the ring terminal. If
you use the solid core cables with the ring terminal, the ring
terminal's pressure bonding may malfunction and cause the
cables to abnormally heat up.

B. For strand wiring

(1) Use ring terminals with insulating sleeves as shown in the

fi gure below to connect to the terminal block.

(2) Securely clamp the ring terminals to the cables using an

appropriate tool so that the cables do not come loose.

(3) Use the specifi ed cables, 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 for the terminal screw tightening torques.
(7) Please do not fi x two power supply cables with one screw.

Earth cable

30 mm

Power supply cable

A. For solid core wiring

(1) To connect the electrical terminal, follow the below diagram

and connect after looping it around the end of the cable.

(2) Use the specifi ed cables, connect them securely, and fasten

them so that there is no stress placed on the terminals.

(3) 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.

(4) Do not tighten the terminal screws too much, otherwise, the

screws may break.
(5) See the table for the terminal screw tightening torques.
(6) Please do not fi x two power supply cables with one screw.

Strip 25 mm

Loop

Strip 10 mm

Cable

Screw with
special washer

Ring terminal

Terminal block

WARNING

Ring terminal

Cable

Sleeve

Screw with
special washer

Ring
terminal

• Use ring terminals and tighten the terminal screws to the
specifi ed torques, otherwise, abnormal overheating may be
produced and possibly cause heavy damage inside the unit.

Tightening torque

M4 screw

(Power supply /L , N , GND)

1.2 to 1.8 N·m

(12 to 18 kgf·cm)

En-13

6.3.2 Transmission and Remote control cable

6.4. Connection of wiring

25 mm

Shielded
cable (No fi lm)

70 mm

Transmission cable

20 mm

Remote control cable

• Connect remote control and transmission cables as shown
in Fig. A.

Fig. A

Screw

(1) Remove the control box cover from the control box.
(2) Connect the connection cable.

Control box

Control box cover

Remove the 4 screws and
the control box cover from
the control box.

Screw

Terminal block

Cable

• Tighten the terminal screws to the specified torques,
otherwise, abnormal overheating may be produced and
possibly cause heavy damage inside the unit.

Cable of the
same caliber: OK

WARNING

Cable of the different
caliber: NO GOOD

Tightening torque

M3.5 screw

(Transmission /X1, X2)

(Remote control /Y1, Y2, Y3)

CAUTION

• To peel the fi lm from the lead cable, use a dedicated tool that
will not damage the conductor cable.

• When installing a screw on the terminal block, do not cut the
cable by overtightening the screw. On the other hand, an
undertightened screw can cause faulty contact, which will
lead to a communication failure.

0.8 to 1.0 N·m

(8 to 10 kgf·cm)

Binder (Medium)
(

Accessories

Remote control cable

L, N: Power supply
cable

X1, X2: Transmission
cable

Y1: Red
Y2: White
Y3: Black

6.5. Air fl ow changing

When using the unit with external static pressure under 25
Pa, the connector must be replaced as explained below.

Replacement method (see Fig. B)
(1) Remove the Wire (Type A) connector from Wire (Fan

motor).

(2) Remove the Wire (Type A) connector from CN4 of the

PCB.
(3) Insert the Wire (Type B) connector into CN4 of the PCB.
(4) Insert the Wire (Type B) connector into Wire (Fan motor).

Fig. B

CN4 Wire

Wire
(Fan motor)

)

En-14

External Static Pressure and Required Connector Type

Type A B

External

static

25 – 50 Pa 0 – 25 Pa

pressure

Wire

1

2

3

4

5

6

1 Purple
2 Pink
3 Blue
4 Red
5 White

1

2

3

4

5

1 Blue
2 Purple
3 Pink
4 White
5 Black

6 Black

Remark

Factory setting

(Standard static

pressure)

Accessories

(Low static pressure)

Rotary switch
Example: “0”

Rotary switch
Example: “0”

Setting

Dip switch “SET 3”

Setting

range

SW1SW2SW3SW

4

Type of switch

7. FIELD SETTING

• Refer to the following three items for setting the FIELD
SETTING address. The respective settings are in­cluded below.

(1) IU AD, REF AD SW settings ... This section

(2) Remote control settings .......... Refer to the wired

or wireless remote
control manual for
detailed setting infor­mation. (Set IU AD,
REF AD SW to 0)

(3) Automatic address settings ..... Refer to the indoor unit

manual for detailed
setting information.
(Set IU AD, REF AD
SW to 0)

CAUTION

• Be sure to turn OFF the power before performing the fi eld
setting.

7.1. Setting the address

Manual address setting method

• If the receiver unit is attached, the indoor unit address and
the refrigerant circuit address can also be set up through
the wirelessremote controller.

Indoor unit

address

0–63

Setting

example

2

IU AD × 10 IU AD × 1

Refrigerant

circuit

0–99

address

(1) Indoor unit address
Rotary switch (IU AD × 1)
Rotary switch (IU AD × 10)
When connecting multiple indoor units to one refrigerant

system, set the address at IU AD SW as shown in the Table A.

(2) Refrigerant circuit address
Rotary switch (REF AD × 1)...Factory setting “0”
Rotary switch (REF AD × 10)...Factory setting “0”
In the case of multiple refrigerant systems, set REF AD SW

as shown in the Table A for each refrigerant system.

Set to the same refrigerant circuit address as the outdoor

unit.

Setting

example

63

Factory setting “0”

...

...

REF AD × 10

Factory setting “0”

REF AD × 1

• If working in an environment where the wireless remote
controller can be used, the addresses can also be set
using the remote controller.

• If setting the addresses using the wireless remote
controller, set the indoor unit address and refrigerant circuit
address to “00”.
(For information on setting using the wireless remote
controller.)

CAUTION

• Use an insulated screwdriver to set the dip switches.

En-15

Table A

Address

Refrigerant

circuit

0

Rotary

Switch Setting Switch Setting

REF AD SW

× 10 × 1 × 10 × 1

Address

Indoor unit

00 0 00

Rotary

IU AD SW

101101
202202
303303
404404
505505
606606
707707
808808

909909
10 1 0 10 0 0
11 1 1 11 1 1
12 1 2 12 1 2

.

.

.

.
.
.

.
.
.

.
.
.

.
.
.

99 9 9 63 6 3

Do not set the indoor unit address (IU AD SW) at 64 to 99.
It may result failure.

(3) Remote controller address
Rotary switch (RC AD SW)...Factory setting “0”
When connecting multiple indoor units to one standard wired

remote controller, set the address at RC AD SW in sequence
from 0.

Setting

Remote

controller

address

Setting

range

0–15

Type of switch

Setting

example

0

RC AD

7.2. Custom code setting

Selecting the custom code prevents the indoor unit mix-up.
(Up to 4 codes can be set.)
Perform the setting for both the indoor unit and the remote
controller.

Indoor
unit

Remote
controller

Confusion

• Custom code setting for indoor unit

Set the DIP SW SET 3 SW1, SW2 referring to the Table B.

.
.
.

Table B

Custom code

A (Factory setting) B C D

DIP SW

SET3 SW1

DIP SW

SET3 SW2

OFF ON OFF ON

OFF OFF ON ON

Code change

A B C D

A B C D

SW1SW2SW3SW

Dip switch “SET3”

4

ON

OFF

Example

Indoor unit

RC AD SW

If 4 indoor units are connected.

Indoor unit Indoor unit Indoor unit

RC AD SW

0

1

RC AD SW

2

Remote
controller

RC AD SW

Address

RC AD SW

Address

01234567
01234567

89ABCDEF
8 9 10 11 12 13 14 15

En-16

RC AD SW

3

7.3. Fuction setting

• FUNCTION SETTING can be performed with the wired
or wireless remote control.

(The remote control is optional equipment)

• Refer to the wired or wireless remote control manual
for detailed setting information. (Set IU AD, REF AD
SW to 0)

• Refer to “7.1. Setting the address” for indoor unit ad­dress and refrigerant circuit address settings.

• Turn the power of the indoor unit ON before starting
the setting.

* Turning on the power indoor units initializes EEV, so

make sure the piping air tight test and vacuuming
have been conducted before turning on the power.

* Also check again to make sure no wiring mistakes

were made before turning on the power.

Function details

8. TEST OPERATION

Function

Filter

indicator

interval

Filter

indicator

action

Cool air

tem-

perature

trigger

Hot air

tem-

perature

trigger

Auto

restart

External

control

Error
report
target

Function

number

11

13

30

31

40

46

47

Setting

number

00 Default

01 Longer

02 Shorter

00 Enable

01 Disable

Display
only on

02

central
remote
control

00 Default

01 Adjust (1)

02 Adjust (2)

00 Default

01 Adjust (1)

02 Adjust (2)

03 Adjust (3)

00 Enable

01 Disable

00 Start/Stop

Emergency

01

stop

00 All

Display
only on

01

central
remote
control

Default

Adjust the fi lter cleaning

○

interval notifi cation. If the noti-
fi cation is too early, change to

setting 01. If the notifi cation is
too late, change to setting 02.

○

Enable or disable the fi lter
indicator. Setting 02 is for use
with a central remote control.

Adjust the cool air trigger tem-

○

perature. To lower the trigger
temperature, use setting 01.
To raise the trigger tempera­ture, use setting 02.

Adjust the hot air trigger

○

temperature. To lower the trig­ger temperature by 6 degrees
C, use setting 01. To lower
the trigger temperature by 4
degrees C, use setting 02. To
raise the trigger temperature,
use setting 03.

Enable or disable automatic
system restart after a power
outage.

○

Allow an external controller
to start or stop the system,

○

or to perform an emergency
shutdown.
* If an emergency shutdown is

performed from an external
controller, all refrigerant
systems will be disabled.

○

Change the target for report­ing errors. Errors can either
be reported in all locations, or
only on the wired remote.

Details

8.1. Test operation using PCB (Outdoor
unit)

• Refer to the Installation Manual for the outdoor unit if
the PCB for the outdoor unit is to be used for the test
operation.

8.2. Test operation using Remote

Controller

• Refer to the Installation Manual for the remote control unit
to perform the test operation using the wireless remote
control unit.

• When the air conditioner is being test run, the OPERATION
and TIMER indicators fl ash slowly at the same time.

9. CHECK LIST

Pay special attention to the check items below when
installing the indoor unit(s). After installation is complete, be
sure to check the following check items again.

CHECK ITEMS

Has the indoor unit been
installed correctly?

Has there been a check
for gas leaks (refrigerant
pipes)?

Has heat insulation work
been completed?

Does water drain easily
from the indoor units?

Is the voltage of the
power source the same
as that indicated on the
label on the indoor unit?

Are the wires and pipes
all connected completely?

Is the indoor unit
grounded?

Is the connection cable
the specified thickness?

Are the inlets and outlets
free of any obstacles?

After installation is
completed, has the proper
operation and handling
been explained to the
user?

If not performed

correctly

Vibration, noise,
indoor unit may drop

No cooling, No heating

Water leakage

Water leakage

No operation, heat or
burn damage

No operation, heat or
burn damage

Short circuit

No operation, heat or
burn damage

No cooling, No heating

CHECK

BOX

En-17

10. ERROR CODES

If you use a wired type remote control, error codes will
appear on the remote control display. If you use a wireless
remote control, the lamp on the photodetector unit will
output error codes by way of blinking patterns. See the lamp
blinking patterns and error codes in the table below.

Abnormal display

OPERATION
lamp (green)

(1) (2)

(1) (4)

(1) (6)

(3) (1)

(3) (2)

(4) (1)

(4) (2)

(5) (1)

TIMER

lamp

(orange)

FILTER

lamp
(red)

Wired

Remote

Controller

Error code

Abnormal

contents

Remote control
abnormal
communication

Anomalous network
communications

Abnormal parallel
communication

Abnormal power
frequency

Abnormal model
information /
abnormal EEPROM
accession

Abnormal room
temperature
thermistor

Abnormal indoor
heat exchanger
temperature
thermistor

Abnormal indoor
fan motor

(5) (3) Abnormal drainage

(9) (15)

Display mode
: 0.1s ON / 0.1s OFF
( ) : Number of fl ashing

Wired Remote Controller Display

For details on marking the ERROR CODES, please refer
to the Manual of “IR Receiver Unit” or “Wired Remote
Controller”.

: 0.5s ON / 0.5s OFF

Abnormal outdoor
unit

Error code

En-18

VRF 系统
室内机
风管式

安 装 说 明 书

仅针对授权的专业维修人员。

目录

1. 安全注意事项 ................................................................. 2

2. 关于机组

2.1. 使用 R410A 制冷剂时的注意事项 ................................ 2

2.2. R410A 的专用工具 .........................................................2

2.3. 附件 .................................................................................2

2.4. 选购件 .............................................................................3

3. 安装工作

3.1. 选择安装位置 .................................................................3

3.2A. 安装尺寸（顶篷隐蔽式） .............................................4

3.2B. 安装尺寸（座地隐蔽式） .............................................4

3.3A. 安装机组（项篷隐蔽式） .............................................4

3.3B. 安装机组（座地隐蔽式） .............................................6

4.

管道安装

4.1. 选择管材 .........................................................................8

4.2. 管道要求 .........................................................................8

4.3. 扩口接头（管接头） .......................................................8

4.4. 安装绝热材料（顶篷隐蔽式） .......................................9

5. 安装排水管（顶篷隐蔽式） ........................................... 10

6. 电气接线

6.1. 电气要求 .......................................................................12

6.2. 接线方法 .......................................................................12

6.3. 机组接线 .......................................................................12

6.4. 线路的连接 ...................................................................14

6.5. 气流变化 .......................................................................14

7. 现场设置

7.1. 设置地址 .......................................................................15

7.2. 用户代码设置 ...............................................................16

7.3. 功能设置 .......................................................................16

8. 试运转

8.1. 使用 PCB 进行试运转（室外机） ................................ 17

8.2. 使用遥控器进行试运转 ...............................................17

9. 检查项目表 .................................................................. 17

10. 故障代码 ...................................................................... 17

部件编号 9374342037-02

安全注意事项

1.

2.2. R410A

的专用工具

• 安装之前务必彻底阅读该说明书。

• 该说明书指出的警告和注意事项包含与您的安全密切相关的

重要信息。请务必遵循这些信息。

• 将该说明书与操作手册交给用户。
请用户将它们收藏好，以便日后使用，例如更换机组位置或

对机组进行修理。

警告！

• 请您的经销商或专业安装人员依照该说明书安装机组。
机组安装不适当可能造成严重的事故，例如漏水、电击或

火灾。

如果没有依照安装说明书中的说明来安装机组，则制造商

不会保用。

• 未完成所有工作之前请勿打开电源。
在工作完成之前打开电源可能造成严重的事故，例如电击

或火灾。

• 如果制冷剂在执行工作时泄漏，请为该区域通风。
如果制冷剂与火焰接触，它会产生有毒气体。

• 务必由授权的维修人员按照国家接线标准执行安装工作。

注意！

该标志表示如果步骤执行失当，可能会导
致用户死亡或严重伤害。

该标志表示，如果步骤执行不当，可能会导
致用户人身伤害或财产损害。

警告

• 若安装使用 R410A 制冷剂的机组，请使用专门为 R410A 制造
的专用工具和管道材料。

因为 R410A 制冷剂的压力大约比 R22 高 1.6 倍，所以未能使

用专用管道材料或不适当的安装可能造成破裂或伤害。

而且，可能造成严重的事故，例如漏水、电击或火灾。

工具名称 变更内容

• 压力较高，不能使用传统的压力计测量。为
了避免与其它制冷剂错误混合，每个接口

压力表歧管

充注软管

真空泵

气体泄漏检测器

附件

2.3.

的直径均已更改。

建议使用具有高压力显示范围为-0.1至

5.3 MPa以及低压力显示范围为-0.1至

3.8 MPa的压力表歧管。

• 为了增加抗压能力，软管材料和尺寸已变

更。

• 可以通过安装真空泵适配器使用传统的真
空泵。

• HFC制冷剂R410A的专用气体泄漏检测
器。

关于机组

2.

使用

2.1.

1

R410A

制冷剂时的注意事项

警告

• 请勿让除规定的制冷剂之外的其他物质进入制冷循环。
如果空气进入制冷循环，则其中的压力将变得异常之高，并且

会造成管道破裂。

• 如果制冷剂泄漏，请确保它未超过浓度限制。
如果制冷剂泄漏超过了浓度限制，则可能造成缺氧等事故。

• 请不要触摸从制冷剂管接头等部位泄漏的制冷剂。直接触摸制

冷剂会导致冻伤。

• 如果运行过程中发生制冷剂泄漏，请立即离开建筑物，并对该
区域彻底通风。

如果制冷剂与火焰接触，它会产生有毒气体。

注意

• 请仔细注意以下几点 ：

• 由于工作压力是 R22 型号的 1.6 倍，因此有些管道布置以及安

装和服务工具是专用的。（请参见“R410A 的专用工具”部分
的表格。）
尤其是将传统制冷剂（除 R410A 之外）型号更换为全新的制
冷剂 R410A 型号时，必须要将传统的管道和扩口螺母更换为

R410A 管道和扩口螺母。

• 使用制冷剂 R410A 的型号具有不同的充注接口螺纹直径，以
防止错误地充注 R22、R407C，并确保安全。因此请预先检查。
[R410A 的充注接口螺纹直径为 1/2 UNF 每英寸 20 个螺纹。]

• 要比安装制冷剂（除 R410A 之外）型号时更小心，不要让杂

质（油、水等）和其他制冷剂进入管道。此外，存储管道时，
应通过夹紧和捆绑等方式将管口牢固密封。

• 充注制冷剂时，应考虑气相和液相组分的轻微变化，并必须
从组分稳定的液相一侧充注。

警告

• 安装时，请务必使用制造商供应的部件或其他规定部件。
使用非规定部件可能造成严重的事故，例如机组掉落、漏水、

电击或火灾。

• 本机配有以下安装部件。请按照需要使用。

• 请妥善保管安装说明书，并且不要在安装工作完成前丢弃任何

其它附件。

在安装工作完成之前，请勿丢弃安装需要的任何附件。

名称及形状 数量 应用

使用说明书

1

安装说明书

安装样板

（本书）

1

用于确定室内机安装位置

1

Sc-2

名称及形状 数量 应用

吊具

4

用于悬挂室内机

接头软管

名称及形状 数量 应用

用于连接排水软管

1

自攻螺钉
(M4 × 10mm)

专用螺母A

M10

大法兰

专用螺母B

M10

小法兰

接管绝热材料
(大)

接管绝热材料
(小)

绑扎件

过滤网

电线

1

2

3

4

5

绝缘材料

（出口）

用于安装吊具

8

用于在顶篷上悬挂室内机

4

用于在顶篷上悬挂室内机
用于在地面上固定室内
机。

4

用于与室内机管道的连接
处（大管）

1

用于与室内机管道的连接
处（小管）名称及形状

1

中3用于绑定电源和传输线以

及遥控器线。

大4用于固定接管绝热材料。

2

(AR7/9)

3

(AR12/14/18)

用于静压在25 Pa以下的场
合。

1

2

用于出口法兰

(小)

2

(大)

卡子

用于固定接头软管

1

排水软管绝热材料B

用于绝热接头软管

1

选购件

2.4.

下列选购件可选 ：

• 排水泵单元 ：UTR-DPB241 (P/N 9034087001)

安装时，请参阅各选购件的安装说明书。

安装工作

3.

选择安装位置

3.1.

对于分体式空调，安装地点尤为重要，因为首次安装后，移
动位置非常困难。

\1

警告

• 选择能有效支撑室内机重量的安装位置。将机组安装牢固，以
免倾倒或坠落。

注意

• 请勿将机组安装在下列区域 ：

• 盐含量高的区域，例如海边。
这会损坏金属部件，使部件掉落或使机组漏水。

• 充满矿物油或包含大量溅油或蒸气的区域，例如厨房。
这会损坏塑料部件，使部件掉落或使机组漏水。

• 会产生对设备有负面影响的物质（例如硫磺气体、氯气、酸

或碱）的区域。

这会腐蚀铜管和铜焊接合，从而造成制冷剂泄漏。

• 会造成可燃气体泄漏、包含悬浮碳化纤维或易燃灰尘或挥发

性可燃物（例如涂料稀释剂或汽油）的区域。

如果气体泄漏并留在机组周围，就可能造成火灾。

• 动物可能会在机组上排尿或者可能会产生氨的区域。

• 请勿将机组用于特殊用途，例如存放食物、饲养动物、栽培植

物或保存精密装置或艺术品。

这可能降低保存或存放对象的质量。

• 请勿安装在可能泄漏易燃性气体的地方。

• 请勿将机组安装在靠近热源、蒸汽或易燃气体的地方。

• 将机组安装在排水不会造成任何问题的地方。

• 请在距离电视机或收音机 1m 以外的地方进行室内机、室外机、

电源线、信号线和遥控器线的安装。 以防止电视接收干扰或
无线电噪声。

（即使在 1m 以外进行了安装，在某些信号条件下可能仍会接

收到噪声。）

• 请勿将机组安装在靠近热源、蒸汽或易燃气体的地方。

Sc-3

注意

• 如 10 岁以下的儿童有可能接触到，请采取适当的预防措施，
使他们无法接触机组。

• 请根据以下准则征询用户意见，决定安装位置 ：

(1) 将室内机安装在具有足够强度的地方，以便能承受室内机的

重量。

(2) 不得阻挡进气口和出气口，空气能够流通到整个房间。

(3) 请保留可以维修空调的空间。

(4) 可以让机组排出的空气在整个房间内均匀分布的地方。

(5) 将机组安装在容易连接室内机的地方。

(6) 将机组安装在容易安装连接管的地方。

(7) 将机组安装在容易安装排水管的地方。

(8) 将机组安装在不会将噪音和振动放大的地方。

(9) 应考虑之后的维修等情况，并留出空间。将机组安装在可以

拆卸过滤网的地方。

3.2A. 安装尺寸（顶篷隐蔽式）

提供一个用于检查的维修孔。
请勿将任何接线或灯放置在维修空间内，因为它们会阻碍维
修。

安装尺寸

坚固耐用的顶篷

3.2B. 安装尺寸（座地隐蔽式）

座地隐蔽式要求温度校正设置。请在“7. 现场设置”中执行
此项操作。

左侧

坚固耐用的地板

150 mm

或以上 ※1

右侧

( 管道侧 )

400 mm

或以上

进风
气流

30 mm

或以上

30 mm

或以上

※1 排水管排水时为 400mm 或更宽

3.3A. 安装机组（项篷隐蔽式）

警告

• 空调安装的位置应能承受至少等于主机重量 5 倍的载荷，且不
会增大噪音或振动。如果安装位置不够坚固，室内机会坠落，
引起人身伤害。

• 如果仅用面板外框进行施工，会有机组变松的危险。请小心。

左侧

150 mm

或以上 ※1

室内机 右侧

※1 排水管排水时为 400mm 或更宽

机组

300 mm

或以上

100 mm

或以上

400 mm

或以上

400 mm

或以上

维修孔

控制箱

3.3A1. 机组安装示例（顶篷隐蔽式）

侧面进口 – 侧面出口

风管（现场供应）

进气隔栏（现场供应）

空气

底部进口 – 侧面出口
如下更换盖子。

• 拆下 4 颗自攻螺钉，然后拆下盖子。

• 按如下示意图使用 4 颗自攻螺钉安装盖子。

自攻螺钉

盖子

风管（现场供应）

维修空间

Sc-4

进气隔栏（现场供应）

空气

注意

• 为了防止有人接触空调器内部的部件，请务必在进气口和
出气口上安装隔栏。隔栏必须具有这样的设计，即没有工
具就不能将其拆下。

• 将风管连接到室内机的出气口时，请确保对出气口和安装螺钉

进行绝缘，以防止水泄漏到出气口周围。

• 将机组外面的静压设置为 50 Pa 或更低（允许范围在 0 和

50 Pa 之间）。

AR07/09 型

596

390

AR12/14/18 型

390

886

3.3A.2. 安装过滤网

• 将过滤网安装到机组上。

AR07/09: 2 过滤网
AR12/14/18: 3 过滤网

机组

3.3A.4. 安装吊具

• 将悬挂螺栓固定到顶篷上，并安装专用螺母 A 和 B。

• 将吊具（附件）安装到机组上（4 个地方）。

吊具

空气

过滤网（附件）

吊具（附件）

自攻螺钉

（附件）

过滤网

3.3A3. 钻螺栓孔和安装螺栓

• 使用安装样板为螺栓钻孔（4 孔）。

安装样板

螺栓的钻孔位置

• 将机组悬挂起。

将悬挂螺栓从吊具上穿过（4 个地方）。

悬挂螺栓 吊贝

专用螺母 A

（附件）

专用螺母 B

（附件）

注意

• 在进气口和顶篷之间留出 100 mm 或更多的距离。

• 使用专用螺母 A 和 B 牢牢地固定空调器。

机组

Sc-5

3.3A.5. 测平

在机组顶部进行基础水平方向测平。

3.3B. 安装机组（座地隐蔽式）

如果使用右侧排水口

正确

如果使用左侧排水口

顶篷

水平面

10 mm 或以下

不正确

注意

• 为了防止有人接触空调器内部的部件，请务必在进气口和出气
口上安装隔栏。隔栏必须具有这样的设计，即没有工具就不能
将其拆下。

• 将风管连接到室内机的出气口时，请确保对出气口和安装螺钉
进行绝缘，以防止水泄漏到出气口周围。

• 将空调器外面的静压设置为 50 P a 或更低（允许范围在 0 和

右侧排水口左侧排水口

50 Pa 之间）。

3.3B.1. 安装过滤网

• 拆下 4 颗自攻螺钉，然后拆下盖子。

• 按如下示意图使用 4 颗自攻螺钉安装盖子。

自攻螺钉

盖子

• 将过滤网（附件）安装到机组上。

正确不正确

10 mm 或以下

水平面

空气

正确 不正确

10 mm 或以下

AR07/09: 2 过滤网
AR12/14/18: 3 过滤网

机组

过滤网

过滤网

Sc-6

3.3B.2. 安装吊具

3.3B.4. 安装机组

• 将吊具（附件）安装到机组上（4 个地方）。

吊具

3.3B.3. 钻螺栓孔和安装螺栓

• 螺栓的钻孔位置

AR07/09 型

170 mm

• 将机组固定。

安装机组，并用专用螺母 B 紧固。

机组

3.3B.5. 测平

在机组顶部进行基础水平和垂直方向测平。

左排水口

专用螺母 B

（附件）

右排水口

596 mm

AR12/14/18 型

886 mm

注意

请使用 M10 锚栓固定。如果将机组固定到地板上比较困难，请
首先建立一个架子或平台。

• 螺栓尺寸

M10

30 至 50 mm

170 mm

如果使用右侧排水口

10 mm 或以下

不正确正确

如果使用左侧排水口

10 mm 或以下

不正确

注意

• 连接管道时，确保在必要时能够方便地拆下控制箱盖进行维修。

• 为了防止水泄漏到控制箱内，请确保管道绝缘情况良好。

正确

Sc-7

管道安装

4.

注意

• 要小心注意的是，杂质（油、水等）不会像制冷剂 R410A 型
号那样进入管道。另外，存放管道时，通过夹住、捆绑等牢
固密封管口。

扩口接头（管接头）

4.3.

警告

• 请用扭矩扳手按照指定的方法紧固扩口螺母。如果扩口螺母拧
得太紧，长时间后扩口螺母会破裂而导致冷媒泄漏，如果接触
明火，会产生有毒气体。

• 焊接管道时，务必向里面冲入干燥的氮气。

选择管材

4.1.

注意

• 不要使用原有的管道。

• 使用的管道应内外表面清洁，不含在使用过程中可能引起故

障的污染物，例如硫、氧化物、灰尘、切屑、油或水。

• 必须使用无缝铜管。
材料 ：经过磷脱氧处理的无缝铜管。
残油量最好小于 40 mg/10 m。

• 使用的铜管不能带有压扁、变形或变色的部分（尤其是在内

部表面）。否则，膨胀阀或毛细管可能会被污染物堵塞。

• 管道选择不当会降低性能。由于使用 R410A 的空调会比使用
传统的制冷剂时承受更高的压力，因此需要选择适当的材料。

• 使用 R410A 的铜管厚度如表所示。

• 绝对不要使用厚度不足于表中所示的铜管，即使市场上有售。

退火铜管的厚度（R410A）

管外径 [mm (in.)] 厚度 [mm]

6.35 (1/4) 0.80

9.52 (3/8) 0.80

12.70 (1/2) 0.80

15.88 (5/8) 1.00

19.05 (3/4) 1.20

管道要求

4.2.

注意

• 有关连接管道长度或不同标高的规格，请参见室外机的安装

说明书。

4.3.1. 扩口

• 请使用专用的切管机和 R410A 专用的扩口工具。
(1) 使用切管机将连接管截成所需的长度。

(2) 向下握住水管以避免切屑进入管道并去除毛刺。
(3) 将扩口螺母（必须使用分别连接到室内机和室外机的扩口螺

母）插入管道，并使用扩口工具执行扩口工序。请使用专用
的 R410A 扩口工具或传统的扩口工具。如果使用其它扩口螺
母，会导致制冷剂泄漏。

(4) 请夹住或用胶带保护管道，防止灰尘、污物或水进入管道。

管道外径

[mm (in.)]

尺寸 A [mm]

的扩口工具，

R410A

离合式

6.35 (1/4)

9.52 (3/8) 13.2

12.70 (1/2) 16.6

0 至 0.5

15.88 (5/8) 19.7

19.05 (3/4) 24.0

当使用传统的扩口工具对 R410A 管道进行扩口时，尺寸 A 应
比表中（针对使用 R410A 扩口工具进行扩口）所指的多大约

0.5 mm 以获得指定的扩口。使用厚度测量仪测量尺寸 A。

管道外径

[mm (in.)]

6.35 (1/4) 17

9.52 (3/8) 22

12.70 (1/2) 26

15.88 (5/8) 29

19.05 (3/4) 36

尺寸

B

-00.4

[mm]

9.1

扩口螺母的扳手开口

宽度 [mm]

• 使用带防水绝热材料的管道。

注意

• 请在气体和液体管道周围安装绝热材料。否则可能会导致漏
水。

请使用抗热能力超过 120℃的绝热材料。（仅限逆循环型）
此外，如果安装制冷剂管道的地方的湿度可能会超过 70%，

请在制冷剂管道周围安装绝热材料。如果预计的湿度为
70-80%，请使用 15 mm 或更厚的绝热材料 ；如果预计的湿度
超过 80%，请使用 20 mm 或更厚的绝热材料。如果使用的绝
热材料未达到指定的厚度，可能会在材料表面形成冷凝。

此外，请使用热传导率为 0.045 W/（m•K）或以下（20 ℃时）

的绝热材料。

Sc-8

4.3.2. 弯管加工

• 如果用手使管道成形，注意请勿将它们压扁。

• 弯曲管道时角度不应超过 90°。

• 如果反复弯曲或拉伸管道，材料将变硬，以至很难再次弯曲或

拉伸。

• 弯曲或拉伸管道的次数不应超过三次。

注意

• 为了防止管道破裂，应避免过度的弯曲。

• 如果管道在同一位置反复弯曲，它会破裂。

4.3.3. 管道连接

注意

• 务必要将管道与室内机的接口正确连接。如果没有对齐，扩

口螺母将无法顺利紧固。如果强行旋转扩口螺母，将损坏螺纹。

• 只有在对连接管道进行连接之前才能从室内机管道上拆除扩

口螺母。

• 握住扭矩扳手的手柄，使其与管道成 90 度，以便正确地拧紧

扩口螺母。

• 按照指定的拧紧方法，用扭矩扳手拧紧扩口螺母。否则长时

间以后，扩口螺母会破裂，导致制冷剂泄漏，如果制冷剂与
火焰接触，还会产生有害气体。

安装绝热材料

4.4.

（顶篷隐蔽式）

执行制冷剂绝缘检查后，请安装绝热材料（有关详细信息，
请参见室外机的安装说明书）。

4.4.1. 接管绝热材料

• 在室内侧的气体管和液体管周围用接管绝热材料（附件）进
行绝缘。

• 安装了接管绝热材料之后，请用聚氯乙烯胶带将两端包扎，
不留间隙。

• 接上接管绝热材料后，请在绝热材料的两端各用一个绑扎件

（大）将其固定。

• 请确保绑扎件覆盖绝热管道。

用手适当将扩口螺母拧好后，用单独的扳手固定住机身一侧
的接管，然后使用扭矩扳手将其拧紧。（有关扩口螺母的拧紧
扭矩，请参见下表。）

扩口螺母 [mm (in.)] 拧紧扭矩 [N·m (kgf·cm)]

6.35 (1/4) dia. 16 至 18 (160 至 180)

9.52 (3/8) dia. 32 至 42 (320 至 420)

12.70 (1/2) dia. 49 至 61 (490 至 610)

15.88 (5/8) dia. 63 至 75 (630 至 750)

19.05 (3/4) dia. 90 至 110 (900 至 1,100)

按以下的示意图所示布置管道线路。

顶篷隐蔽式

控制箱盖

接管绝热材料

（附件）

绑扎件（大）

（附件）

• 检查气体泄漏之后（请参考室外机的安装说明书），请执行这
部分操作。

• 在大（气体）管道和小（液体）管道周围安装绝热材料。否则
可能会导致漏水。

用绝热材料覆盖
这部分。

绝热材料

注意

4.4.2. 绝缘材料（出口）

当不使用出风管时，请在出气口法兰上安装绝缘材料（出口）

（图 A）

在出气口法兰的左侧和右侧安装小件绝缘材料（出口 / 小）。

1

在出气口法兰的上部分和下部分上安装大件绝缘材料（出口

2

大

）。

。

/

正确

管道 不正确

座地隐蔽式

正确 正确

不正确

图 A

绝缘材料（出口）
（小）
（附件）

1

2

1

2

绝缘材料（出口）
（大）
（附件）

不正确安装绝缘材料会导致漏水。

注意

视图 B

视图 A

0 mm

0 mm

0 mm

0 mm

0 mm

Sc-9

安装排水管（顶篷隐蔽式）

5.

请使用普通硬度的聚氯乙烯管，并使用胶带（聚氯乙烯）将
其连接，以防止渗水。
必须对室内侧排水管进行绝热处理。
请使用与排水软管的尺寸相匹配的排水管（表 A）。

• 请勿提起、令其出现存水弯和出气孔。

• 提供向下的倾斜度（1/100 或更大）。

• 安装长管道时，请使用支架。

• 如果需要，请使用绝热材料，以防止管道冻结。

• 安装管道时，必须便于拆卸控制箱。

表

A

外径

排水管 32 mm (VP25)

顶篷隐蔽式

出风气流

排水软管

(2) 务必将接头软管1完全插入到机组排水盘的尾部，并使其

之间没有空隙。

胶粘剂涂

确保没有

空隙。

接头软管

1

排水盘

刷区域

4 mm 或以下

接头软管
( 现场供应 )

排水软管 (VP25)

( 现场供应 )

卡子

2

正确

排水软管须低于此口。

正确

不正确 不正确 提起

1.5 至 2 m

存水弯

支架

出气孔

不正确

座地隐蔽式

提起

正确

不正确

不正确

• 接头软管的安装方法

注意

• 必须连接不漏水的管道用于排水。

• 为了防止冷凝和滴水，务必将室内排水管绝热。

(1) 务必使用附带的接头软管1和卡子2。（在机组的另一侧

使用排水孔时，安装工作相同。）

卡子

2

接头软管

1

在螺钉垂直处紧固卡子
如图中所示，螺钉必须位于接头软管

。

2

注意

的右侧。

1

请勿连接到带有胶粘剂的排水孔。使用胶粘剂可能会造成损坏
和漏水。

(3) 安装接头软管1后，检查排水是否顺畅。

倾斜角

2.5-5.0 mm

正确

注意

不正确

为了防止在接头软管1上过度施力，应避免弯曲或扭曲接头软
管。（否则，可能会导致漏水。）

排水孔

Sc-10

硬 PVC 侧

(4) 检查排水后，如图中所示，安装排水软管绝热材料 B 3将

其绝热。
为防止接头软管1和卡子2间出现空隙，应牢固地压紧排
水软管绝热材料 B 3。

确保没有
空隙。

排水软管绝

3

热材料 B

将绝热材料紧压在
机组上。

第 1 步

牢固地压紧

牢固地
压紧

第 2 步

牢固地
压紧

控制箱

切缝

切缝

电气接线

6.

警告

• 必须由持有证书的人员在国家或地方条例的规定下依照该说明
书执行电气工作。务必对机组使用专用电路。

电源不足的电路或错误执行的电气工作可能造成严重的事故，

例如电击或火灾。

• 开始工作前，检查室内机和室外机是否没有通电。

• 对于接线，请使用规定的电线类型，牢固地连接电线，确保电

线上没有外力施加到终端连接上。

错误连接或固定的电线可能造成严重的事故，例如终端过热、

电击或火灾。

• 将电气盒盖牢固地安装在机组上。

不适当安装的电气盒盖可能由于接触灰尘或水而造成严重的事

故，例如电击或火灾。

• 请使用壁孔用管。如果不使用，有时会引起漏电等。

• 连接源线，请使用附属品及指定元件。否则可能会因接触不良、

绝缘不良、超过额定电流而导致触电、火灾。

• 请勿加工电源线、使用延长线、分歧配线。否则可能会因接触
不良、绝缘不良、超过额定电流而导致触电、火灾。

• 将接线盒号码与室外机上的连接线颜色相匹配。错误的接线可
能会导致电气部件烧毁。

• 请将端子盘上的连接电缆安装牢靠。或是使用“配线压头”加
以固定。对连接电缆进行中段连接、或插入固定不牢靠，可能
会导致故障、触电、火灾等。

• 必须用线夹固定连接线的绝缘层。 （如果绝缘层未被夹住，可
能会发生漏电。）

• 请安装漏电开关。若要安装时，请将交流总电源全部同时切断。
如果不安装漏电开关，可能会导致触电及火灾。

• 安装漏地断路器。

如果没有安装漏地断路器，则可能造成电击或火灾。

• 必须连接地线。

不当的接地工作可能会导致触电。

• 安装遥控器导线时，要确保不会用手直接触摸到。

• 按照标准进行接线工作，以便空调器可以安全无故障地运行。

• 将连接电缆牢固地连接在接线板上。不正确的安装可能会导致

火灾。

在接头上缠绕
绝热材料。

第 3 步完成

• 在空调器左侧使用排水口时，请拆下排水塞，并将其安装到
右侧排水口。

排水塞

机组

注意

请确保排水操作正常。

Sc-11

注意

• 将机组接地。
请勿将地线连接到气体管、水管、避雷针或电话地线。
不适当的接地可能造成电击。

• 请勿将电源线连接到信号线或遥控器接线端，因为这会损坏该

产品。

• 绝不要将电源线和信号线束在一起。将这些线束在一起会导致
错误运行。

6.2.

（示例）

电源

室外机

信号线

接线方法

断路器

电源

• 操作 PCB 时，机身上的静电可能造成控制 PCB 发生故障。请
遵循下列注意事项 ：

• 对室内和室外机组以及外围设备使用接地线。

• 切断电源（断路器）。

• 请触摸室内和室外机组金属部分 10 秒以上，以释放机身静

电。

• 请勿触碰接线 PCB 上的部件端子和布线模式。

电气要求

6.1.

198 - 264 V

2

)

(mm

230 V

245 IEC57或相

当品

电线类型 备注

1ø 50 Hz
198-264 V
2 电线 + 地线

额定电压
操作范围

电缆尺寸推荐值

电源线 2.5

22 AWG LEVEL

信号线 0.33

LONWORKS

兼容线

4 （NEMA） 非极
性双芯双绞实芯
线，直径0.65 mm

遥控器线 0.33

聚氯乙烯外皮
电缆*

极性3芯
双绞线

*: 根据当地规则，对遥控器使用屏蔽电缆。

室内机 室内机 室内机

信号线 信号线 信号线

遥控 遥控

电源

电源

遥控器
（主）

机组接线

6.3.

电源 电源

断路器 断路器断路器

电源 电源

遥控器
（副）

遥控

遥控器

• 将电线连接到接线板之前。

6.3.1 电源线

20 mm

地线

30 mm

电源线

对于实心接线

A.

(1) 要连接电气端子，请在将电线的端部结环后按照下图进行连

接。

(2) 将指定的电线牢固地连接，并将其固定，使端子上没有压力。

(3) 使用适合的螺丝刀拧紧端子螺钉。

请勿使用过小的螺丝刀，否则可能会损坏螺钉头并造成螺钉

无法正确紧固。

(4) 请勿将端子螺钉拧得过紧，否则螺钉可能会破裂。

(5) 请参见表中的端子螺钉拧紧扭矩。

(6) 请不要用一颗螺丝固定两根电源线。

Sc-12

剥去 25 mm

线圈

警告

• 使用环形端子并将端子螺钉拧紧到指定的扭矩，否则可能会发
生异常过热并可能导致机组内部的严重损坏。

拧紧扭矩

M4螺钉

（电源线 /L , N , GND）

1.2 至 1.8 N·m

(12 至 18 kgf·cm)

带特殊垫片的

电线

螺钉

电线端部

（环）

接线盒

警告

电线

带特殊垫片的
螺钉

电线端部

（环）

• 使用实心线时，请勿使用环形端子。如果将实心线用于环形端
子，环形端子的气压粘结可能会出现故障并导致电线异常发热。

对于绞合线

B.

(1) 使用下图中所示的带有绝缘套管的环形端子连接接线盒。

(2) 使用适合的工具将环形端子牢固地夹紧到电线，这样电线就

不会松散。

(3) 将指定的电线牢固地连接，并将其固定，使端子上没有压力。

(4) 使用适合的螺丝刀拧紧端子螺钉。

请勿使用过小的螺丝刀，否则可能会损坏螺钉头并造成螺钉

无法正确紧固。

(5) 请勿将端子螺钉拧得过紧，否则螺钉可能会破裂。

(6) 请参见表中的端子螺钉拧紧扭矩。

(7) 请不要用一颗螺丝固定两根电源线。

6.3.2 信号线和遥控器线

25 mm

屏蔽电线

（无绝缘层）

70 mm

信号线

20 mm

遥控器线

• 如图 A 所示连接遥控和传输电缆。

图 A

剥去 10 mm

电线

带特殊垫片的
螺钉

环形端子

接线盒

电线

环形端子

套管

带特殊垫片的
螺钉

环形
端子

螺钉

接线盒

电线

相同口径的电线 ：
正确

警告

不同口径的电线 ：
不正确

• 将端子螺钉拧紧到指定的扭矩，否则可能会发生异常过热并可
能导致机组内部的严重损坏。

拧紧扭矩

M3.5螺钉

（信号线 /X1, X2）

（遥控器线 /Y1, Y2, Y3）

注意

0.8 至 1.0 N·m

(8 至 10 kgf·cm)

• 要剥去引线上的绝缘层，请使用不会损坏导线的专用工具。

• 在接线盒上安装螺钉时，请勿过度拧紧螺钉而折断电线。同时，

过度拧紧的螺钉可能造成错误接触，从而导致通信故障。

Sc-13

线路的连接

6.4.

气流变化

6.5.

(1) 从控制箱上拆下控制箱盖。
(2) 连接连接电缆。

控制箱

L、N ：电源线

X1、X2 ：信号线

螺钉

控制箱盖

从控制箱上拆下 4 颗螺钉
和控制箱盖。

绑扎件（中）

（附件）

遥控器线

Y1 ：红 色
Y2 ：白 色
Y3 ：黑 色

使用的外部静压为 25 Pa 以下时，必须按照以下说明更换连接
线。

更换方法（参见图 B）

(1) 从电线（风机马达）上拆下电线（A 型）的接头。
(2) 从 PCB 的 CN4 上拆下电线（A 型）的接头。
(3) 将电线（B 型）的接头插入到 PCB 的 CN4 中。
(4) 将电线（B 型）的接头接入到电线（风机马达）上。

图 B

CN4 电线

电线
( 风机马达 )

外部静压和要求的连接线类型

类型 AB

外部静压

电线

25 – 50 Pa 0 – 25 Pa

1

2

3

4

5

6

1

2

3

4

5

1 紫色
2 粉红色
3 蓝色
4 红色
5 白色

1 蓝色
2 紫色
3 粉红色
4 白色
5 黑色

6 黑色

备注

出厂设置（标准静压） 附件（低静压）

Sc-14

现场设置

7.

• 要设置现场设置地址，请参考下列 3 个项目。 以下包
括了相应的设置。

(1) IU AD , REF AD SW 设置 .......... 本部分内容

(2) 遥控器设置 ................................. 有关详细的设置信

息，请参考有线或无
线遥控器的说明书。

（将 IU AD , REF AD

SW 设为 0）

(3) 自动地址设置 ............................. 有关详细的设置信

息，请参考室内机的
说明书。（将 IU AD ,
REF AD SW 设为 0）

注意

• 在执行现场设置之前，请确保切断电源。

设置地址

7.1.

手动地址设置方法

• 如果连接到接收器，则也可以通过无线遥控器来设置室内机
地址和制冷地址。

注意

• 请使用绝缘螺丝刀来设置 DIP 开关。

SW1SW2SW3SW

DIP 开关 “SET 3”

旋转开关
示例 ：“0”

旋转开关
示例 ：“0”

4

表 A

地址

制冷剂

回路

0

旋转开关

设置 设置

REF AD SW

× 10 × 1

地址

室内机

00 0 00

旋转开关

IU AD SW

× 10 × 1

101101
202202
303303
404404
505505
606606
707707
808808

909909
10 1 0 10 0 0
11 1 1 11 1 1
12 1 2 12 1 2

.
.
.

.
.
.

.
.
.

.
.
.

.
.
.

99 9 9 63 6 3

请勿在 64 至 99 之间设定室内机地址（IU AD SW）。

否则可能会导致故障。

.
.
.

设置

室内机地址 0–63

设置
范围

开关类型

设置示例

2

IU AD × 10 IU AD × 1

制冷剂回路

地址

(1) 室内机地址
旋转开关 (IU AD × 1)
旋转开关 (IU AD × 10)
将多台室内机连接到一个制冷剂系统时，请参见表 A 中 IU

AD SW 处的地址。

(2) 制冷剂回路地址
旋转开关 (REF AD × 1)
旋转开关 (REF AD × 10)
在有多个制冷剂系统的情况下，请按表 A 所示为每个制冷剂

系统设置 REF AD SW。

设置为与室外机相同的制冷剂回路地址。

0–99

设置示例

63

.......

.......

.......

.......

REF AD × 10

出厂设置“0”

出厂设置“0”

出厂设置“0”

出厂设置“0”

REF AD × 1

• 如果在使用无线遥控器的环境下工作，亦可使用遥控器设置

地址。

• 如果使用无线遥控器设置地址，请将室内机地址和制冷剂回
路地址设为“00”。

（有关使用无线遥控器设置的信息。）

(3) 遥控器地址

旋转开关 (RC AD SW) ...... 出厂设定为“0”

将多台室内机连接到一个标准有线遥控器时，请从 0 开始顺

次设置 RC AD SW 处的地址。

设置

遥控器地址 0–15

设置
范围

开关类型

设置示例

0

RC AD

示例

如果安装了 4 台室内机。

室内机 室内机 室内机 室内机

RC AD SW

0

RC AD SW1RC AD SW

2

RC AD SW

3

遥控器

RC AD SW

地址

RC AD SW

地址

01234567
01234567

8 9ABCDE F
8 9 10 11 12 13 14 15

Sc-15

用户代码设置

7.2.

7.3. 功能设置

选择用户代码可以防止室内机信号混同。
( 可以设置多达 4 个代码。)
为室内机和遥控器执行该设置。

室内机

遥控器

混同

• 室内机的自定义代码设置

参考表 B 设置 DIP SET 3 SW1 , SW2。

表 B

用户代码

A（出厂设置） BCD

DIP SW

SET 3 SW1

DIP SW

SET 3 SW2

关（OFF）开（ON）关（OFF）开（ON）

关（OFF）关（OFF）开（ON）开（ON）

代码变化

A B C D

A B C D

SW1SW2SW3SW

DIP 开关 “SET 3”

• 可以使用有线或无线遥控器执行功能设置。
（遥控器为选购设备）

• 有关详细的设置信息，请参考有线或无线遥控器的说
明书。（将 IU AD , REF AD SW 设为 0）

• 有关室内机地址和制冷剂回路地址设置，请参考“7.1

设置地址”。

• 开始设置之前，请打开室内机的电源。

* 打开电源时，室内机初始化 EEV，所以请确保在打

开电源之前已执行了管道气密性测试和抽真空作业。

* 打开电源前，请再次检查以确保没有接线错误。

功能说明

功能

功能

号码

过滤网指
示器间隔

4

ON

OFF

过滤网指
示器操作

冷空气温

度触发

热空气温

度触发

自动重新

启动

外部
控制

故障报告

对象

设置号码

00 默认设置 ○

11

01 较长

02 较短

00 启用 ○
01 禁用

13

02

00 默认设置 ○

30

01 调节（1）
02 调节（2）
00 默认设置 ○

01 调节（1）

31

02 调节

03 调节（3）
00 启用

40

01 禁用 ○

00 启动/停止 ○

46

01 紧急停止

00 所有 ○

47

01

仅在中央
遥控器上

显示

仅在中央
遥控器上

显示

（2）

默认
设置

调节过滤网清洁间隔通知。如
果通知时间过早，更改为设置
01。如果通知时间过迟，更改
为设置02。

启用或禁用过滤网指示器。设
置02适用于中央遥控器。

调节冷空气触发温度。要降低
触发温度，使用设置01。要提
高触发温度，使用设置02。

调节热空气触发温度。要降低
触发温度6摄氏度，使用设置
01。要降低触发温度4摄氏度，
使用设置02。要提高触发温
度，使用设置03。

电源中断后，启用或禁用自动
系统重新启动。

允许外部控制器启动或停止
系统，或者执行紧急关机。
* 如果从外部控制器执行紧急

关机，将禁用所有制冷剂系
统。

更改报告故障的对象。可以在
所有位置报告故障，也可以只
在有线遥控器上报告故障。

说明

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试运转

8.

使用

8.1.

• 如果使用室外机的 PCB 来进行试运转，请参考本安装说明
书了解室外机。

使用遥控器进行试运转

8.2.

• 要使用无线遥控器来进行试运转，请参考遥控器的安装说明
书。

• 对空调器进行试运转时，运转和定时器指示灯同时缓慢地闪
烁。

检查项目表

9.

安装室内机（组）时，请特别注意以下的检查项目。安装完成后，
请确保再次检查以下的检查项目。

检查项目 如果未正确执行 检查框

正确地安装了室内机了
吗？

已检查气体泄漏（制冷剂管
道）了吗？

已完成绝热工作了吗？ 漏水
室内机组排水容易吗？ 漏水
电源电压与室内机标签上

显示的相同吗？
电线和管道全都连接正确

吗？
室内机接地了吗？ 短路
连接电缆具有规定的粗细

吗？
保持进口和出口无阻塞物

了吗？
安装完成后，向用户说明正

确的操作和处理了吗？

进行试运转（室外机）

PCB

振动，噪音，室内机可能
掉落

无制冷，无制热

不运转，发热或烧坏

不运转，发热或烧坏

不运转，发热或烧坏

无制冷，无制热

故障代码

10.

如果您使用有线型遥控器，则故障代码将显示在遥控器的显
示屏上。如果您使用无线遥控器，机组上的指示灯将通过各
种闪烁的组合输出故障代码。请参阅下表中的指示灯闪烁组
合和故障代码。

故障显示

运转

定时器

指示器

指示器

（绿色）

（橙色）

(1) (2) 遥控器通信故障

(1) (4) 网络通信故障

(1) (6) 并行通信故障

(3) (1) 电源频率异常

(3) (2)

(4) (1) 室温热敏电阻故障

(4) (2)

(5) (1) 室内机风扇故障

(5) (3) 排水异常

(9) (15) 室外机故障

显示方法
: 0.1 秒开 / 0.1 秒关
( ) : 闪烁次数

过滤网
指示器

（红色）

: 0.5 秒开 / 0.5 秒关

有线遥控器

故障代码

故障内容

型号信息异常/EEPROM
存取故障

室内机热交换器热敏电
阻故障

有线遥控器显示

故障代码

有关故障代码的详细标记方法，请参阅“IR 接收器”或“遥控
器（有线式）”的安装说明书。

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