Fujitsu 1106985 Installationshandbuch

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SPLIT TYPE ROOM AIR CONDITIONER

INSTALLATION MANUAL

(PART NO. 9374995431)

IMPORTANT!

Please Read Before Starting

This air conditioning system meets strict safety and operating standards.

As the installer or service person, it is an important part of your job to in-

stall or service the system so it operates safely and efficiently.

For safe installation and trouble-free operation, you must:

• Carefully read this instruction booklet before beginning.

• Follow each installation or repair step exactly as shown.

• Observe all local, state, and national electrical codes.

• Pay close attention to all danger, warning, and caution notices given in

this manual.

This symbol refers to a hazard or unsafe practice

WARNING:

which can result in severe personal injury or death.

This symbol refers to a hazard or unsafe practice

CAUTION:

which can result in personal injury and the potential

for product or property damage.

• Hazel alerting symbols

Electrical

Safety / alert

If Necessary, Get Help

These instructions are all you need for most installation sites and main-

tenance conditions. If you require help for a special problem, contact our

sales/service outlet or your certified dealer for additional instructions.

In Case of Improper Installation

The manufacturer shall in no way be responsible for improper installation

or maintenance service, including failure to follow the instructions in this

document.

SPECIAL PRECAUTIONS

When Wiring

ELECTRICAL SHOCK CAN CAUSE SEVERE PERSONAL INJU-

RY OR DEATH. ONLY A QUALIFIED, EXPERIENCED ELECTRI-

CIAN SHOULD ATTEMPT TO WIRE THIS SYSTEM.

• Do not supply power to the unit until all wiring and tubing are com-

pleted or reconnected and checked.

• Highly dangerous electrical voltages are used in this system. Care-

fully refer to the wiring diagram and these instructions when wiring.

Improper connections and inadequate earthing (grounding) can cause

accidental injury or death.

• Earth (Ground) the unit following local electrical codes.

• Connect all wiring tightly. Loose wiring may cause overheating at con-

nection points and a possible fire hazard.

GENERAL SPECIFICATION

This INSTALLATION MANUAL briefly outlines where

and how to install the air conditioning system. Please

read over the entire set of instructions for the indoor

and outdoor units and make sure all accessory parts

listed are with the system before beginning.

1. TYPE OF COPPER PIPE AND INSULATION

MATERIAL

Copper tubing for connecting the outdoor unit to the in-

door unit and insulation material is available for purchase

locally. When you purchase them, please specify the fol-

lowing.

A. Deoxidized annealed copper pipe for refrigerant

piping as:

Small pipe

Large pipe

Outer diameter

Thickness

Outer diameter

Thickness

0.031 in

3/8"(9.52 mm)

5/8"(15.88 mm)

(0.8 mm)

Cut each pipe to the appropriate length +12"

(300 mm) to 15" (400 mm) to dampen vibration

between units.

B. Foamed polyethylene insulation for copper pipes as

required to precise length of piping. Wall thickness

of the insulation should not be less than 5/16"

(8 mm).

C. Use insulated copper wire for field wiring.

CAUTION

Check local electrical codes and regulations

before obtaining wire. Also, check any specified

instructions or limitations.

2. ADDITIONAL MATERIALS REQUIRED FOR

INSTALLATION

A. Refrigeration (armored) tape

B. Insulated staples or clamps for connecting wire

(See your local electrical codes.)

C. Putty

D. Refrigeration lubricant

E. Clamps or saddles to secure refrigerant piping

3. OPERATING RANGE

Cooling/

MODEL

Heating Mode

Dry Mode

About -5 to

18R

115 °F

Outdoor

temperature

About -5 to

24R

115 °F

Indoor

About 64 to

—

86 °F or less

temperature

90 °F

Indoor

About 80%

—

humidity

or less

9374995431_IM_EN.indd 1

When Transporting

Be careful when picking up and moving the indoor and outdoor units. Get

a partner to help, and bend your knees when lifting to reduce strain on

your back. Sharp edges or thin aluminum fins on the air conditioner can

cut your fingers.

When Installing...

...In a Ceiling or Wall

Make sure the ceiling/wall is strong enough to hold the unit's weight. It

may be necessary to construct a strong wood or metal frame to provide

added support.

...In a Room

Properly insulate any tubing run inside a room to prevent "sweating" that

can cause dripping and water damage to walls and floors.

...In Moist or Uneven Locations

Use a raised concrete pad or concrete blocks to provide a solid, level

foundation for the outdoor unit. This prevents water damage and abnor-

mal vibration.

...In an Area with High Winds

Securely anchor the outdoor unit down with bolts and a metal frame. Pro-

vide a suitable air baffle.

...In a Snowy Area (for Heat Pump-type Systems)

Install the outdoor unit on a raised platform that is higher than drifting

snow. Provide snow vents.

When Connecting Refrigerant Tubing

• Keep all tubing runs as short as possible.

• Use the flare method for connecting tubing.

• Apply refrigerant lubricant to the matching surfaces of the flare and

union tubes before connecting them, then tighten the nut with a torque

wrench for a leak-free connection.

• Check carefully for leaks before opening the refrigerant valves.

NOTE:

Depending on the system type, liquid and gas lines may be either narrow

or wide. Therefore, to avoid confusion the refrigerant tubing for your par-

ticular model is specified as either "small" or "large" rather than as "liquid"

or "gas".

When Servicing

• Turn the power OFF at the main circuit breaker panel before opening

the unit to check or repair electrical parts and wiring.

• Keep your fingers and clothing away from any moving parts.

• Clean up the site after you finish, remembering to check that no metal

scraps or bits of wiring have been left inside the unit being serviced.

• After installation, explain correct operation to the customer, using the

operating manual.

STANDARD ACCESSORIES

The following installation accessories are supplied. Use them as

required.

Name and Shape Q'ty

Adapter

[in. (mm)]

1/2 (12.70) → 5/8 (15.88)

Adapter is necessary in the

connection of the indoor unit.

(18R MODEL only)

For more information, refer

to the installation manual

Adapter

[in. (mm)]

included with the indoor unit.

1/4 (6.35) → 3/8 (9.52)

Drain pipe

(Reverse cycle

0.039 in

model only)

(1.0 mm)

Drain cap

Installation manual

This manual

The following items are necessary to install this air conditioner. (The

items are not included with the air conditioner and must be purchased

separately.)

Name

Connection pipe assembly

Connection cord

Wall pipe

Decorative tape

Vinyl tape

Wall cap

Saddle

Drain hose

Tapping screws

75 °F

Sealant

M10 bolt, nut

75 °F

ELECTRICAL REQUIREMENT

Always make the air conditioner power supply a special branch cir-

cuit and provide a special switch and receptacle. Do not extend the

—

power cord.

CAUTION

MODEL

MINIMUM CIRCUIT AMPACITY

MAXIMUM OVERCURRENT PROTECTION

(TIME DELAY FUSE OR HACR TYPE CIRCUIT BREAKER)

SAFETY PRECAUTIONS

Be sure to read this manual carefully 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 cus-

tomer. Request the customer to keep them on hand for future use,

such as for relocating or repairing the unit.

ENGLISH

Installation of this product must be done by experienced service tech-

nicians or professional installers only in accordance with this manual.

Installation by nonprofessional or improper installation of the product

may cause serious accidents such as injury, water leakage, electric shock,

or fire. If the product is installed in disregard of the instructions in this

manual, it will void the manufacturer's warranty.

To avoid getting an electric shock, never touch the electrical components

soon after the power supply has been turned off. After turning off the

power, always wait 10 minutes or more before you touch the electrical

components.

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 fire.

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

refrigerant comes in contact with a flame, it produces a toxic gas.

Installation must be performed in accordance with regulations, codes, or

standards for electrical wiring and equipment in each country, region, or

the installation place.

Do not use this equipment with air or any other unspecified refrigerant in

the refrigerant lines.

Excess pressure can cause a rupture.

During installation, make sure that the refrigerant pipe is attached firmly

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 rupture and even injury.

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

than the specified refrigerant (R410A) 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 rupture, injury, etc.

To connect the indoor unit and outdoor unit, use air conditioner piping

and cables available locally as standard parts. This manual describes prop-

er connections using such installation set.

If the supply cord is damaged, it must be replaced by the manufacturer, its

service agent or similarly qualified persons in order to avoid a hazard.

Do not modify power cable, use extension cable or branch wiring. Improp-

er use may cause electric shock or fire by poor connection, insufficient

insulation or over current.

Do not purge the air with refrigerants but use a vacuum pump to vacuum

the installation.

There is not extra refrigerant in the outdoor unit for air purging.

Using the same vacuum pump for different refrigerants may damage the

vacuum pump or the unit.

Use a clean gauge manifold, vacuum pump and charging hose for R410A

exclusively.

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 rupture and even injury.

This appliance is not intended for use by persons (including children) with

reduced physical, sensory or mental capabilities, or lack of experience

and knowledge, unless they have been given supervision or instruction

concerning use of the appliance by a person responsible for their safety.

Children should be supervised to ensure that they do not play with the

appliance.

To avoid danger of suffocation, keep the plastic bag or thin film used as

the packaging material away from young children.

Read carefully all safety information written in this manual before you in-

stall or use the air conditioner.

This unit must be installed by qualified personnel with a capacity certifi-

cate for handling refrigerant fluids. Refer to regulation and laws in use on

installation place.

SELECTING THE MOUNTING

POSITION

Decide the mounting position with the customer as follows:

OUTDOOR UNIT

Description

(1) If possible, do not install the unit where it will be exposed to

direct sunlight. (If necessary, install a blind that does not inter-

fere with the air flow.)

(2) Do not install the unit where a strong wind blows or where it

is very dusty.

(3) Do not install the unit where people pass.

(4) Take your neighbors into consideration so that they are not

disturbed by air blowing into their windows or by noise.

(5) Provide the space shown in the figure so that the air flow is not

blocked.

Also for efficient operation, leave open three of the four direc-

tions front, rear, and both sides.

Install at a place that can withstand the weight of

the indoor and outdoor units and install positively

so that the units will not topple or fall.

—

Do not install where there is the danger of combus-

tible gas leakage.

Do not install near heat sources.

—

If children under 10 years old may approach the

unit, take preventive measures so that they cannot

reach the unit.

INSTALLATION DIAGRAM OF

OUTDOOR UNITS

[OUTDOOR UNIT]

24" (600 mm) or more

Q'ty

4" (100 mm) or more

24" (600 mm) or more

• Do not directly install it on

the ground, otherwise it

1 set

will cause failure.

2" (50 mm) or more

•To obtain better operation efficiency, when the outdoor unit is installed,

1 set

be sure to open the front and left side.

4 set

In the area with heavy snowfall, if the intake and outlet of outdoor unit

is blocked with snow, it is likely to cause of the breakdown. Please con-

struct a canopy and a pedestal or place the unit on a high stand (local

configured).

18 R

24 R

17 A

18 A

20 A

30 A

Install the product by following local codes and regulations in force at the

place of installation, and the instructions provided by the manufacturer.

This product is part of a set constituting an air conditioner. The product

must not be installed alone or be installed with non-authorized device by

the manufacturer.

Always use a separate power supply line protected by a circuit breaker oper-

ating on all wires with a distance between contact of 3 mm for this product.

To protect the persons, earth (ground) the product correctly, and use the

WARNING

power cable combined with an Earth Leakage Circuit Breaker (ELCB).

This product is not explosion proof, and therefore should not be installed

in explosive atmosphere.

Do not touch the fins of the heat exchanger. Touching the heat exchanger fins

could result in damage to the fins or personal injury such as skin rupture.

This product contains no user-serviceable parts. Always consult experi-

enced service technicians for repairing.

When moving or relocating the air conditioner, consult experienced serv-

ice technicians for disconnection and reinstallation of the product.

Do not place any other electrical products or household belongings under

indoor unit or outdoor unit. Dripping condensation from the unit might

get them wet, and may cause damage or malfunction of your property.

ABOUT THIS PRODUCT

PRECAUTIONS FOR USING R410A REFRIGERANT

The basic installation work procedures are the same as conventional refrig-

erant (R22) models.

However, pay careful attention to the following points:

Since the working pressure is 1.6 times higher than that of conventional re-

frigerant (R22) models, some of the piping and installation and service tools

are special. (See the table below.)

Especially, when replacing a conventional refrigerant (R22) model with a

new refrigerant R410A model, always replace the conventional piping and

flare nuts with the R410A piping and flare nuts.

Models that use refrigerant R410A have a different charging port thread

diameter to prevent erroneous charging with conventional refrigerant (R22)

and for safety. Therefore, check beforehand. [The charging port thread diam-

eter for R410A is 1/2-20 UNF.]

Be more careful that foreign matter (oil, water, etc.) does not enter the pip-

ing than with refrigerant (R22) models. Also, when storing the piping, se-

curely seal the opening by pinching, taping, etc.

When charging the refrigerant, take into account the slight change in the

composition of the gas and liquid phases. And always charge from the liquid

phase where refrigerant composition is stable.

SPECIAL TOOLS FOR R410A

Tool name

Gauge manifold

Charge hose

Vacuum pump

Gas leakage detector

Copper pipes

It is necessary to use seamless copper pipes and it is desirable that the amount of

residual oil is less than 40 mg/10 m. Do not use copper pipes having a collapsed,

deformed or discolored portion (especially on the interior surface). Otherwise,

the expansion value or capillary tube may become blocked with contaminants.

As an air conditioner using R410A incurs pressure higher than when using

R22, it is necessary to choose adequate materials.

Thicknesses of copper pipes used with R410A are as shown in Table1. Never

use copper pipes thinner than 0.8 mm even when it is available on the market.

CONNECTION PIPE REQUIREMENT

Nominal

diameter

3/8 in

9.52 mm

5/8 in

15.88 mm

CAUTION

To install a unit that uses R410A refrigerant, use dedicated tools and piping

materials that have been manufactured specifically for R410A use. Because

the pressure of R410A refrigerant is approximately 1.6 times higher than

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 fire.

POWER

The rated voltage of this product is 208/230 V AC

60 Hz.

Before turning on the power, check if the voltage is

within the 208 V -10 % to 230 V +10% range.

Always use a special branch circuit and install a

special receptacle to supply power to the room air

conditioner.

Use a circuit breaker and receptacle matched to the

capacity of the air conditioner.

Do not extend the power cord.

WARNING

Perform wiring work in accordance with standards

so that the air conditioner can be operated safely

and positively.

Install a leakage circuit breaker in accordance

with the related laws and regulations and electric

CAUTION

company standards.

The power source capacity must be the sum of the air

conditioner current and the current of other electrical

appliances. When the current contracted capacity is

insufficient, change the contracted capacity.

When the voltage is low and the air conditioner is

difficult to start, contact the power company the

voltage raised.

LIMITATION OF REFRIGERANT

4" (100 mm) or more

PIPING LENGTH

The total maximum pipe lengths and height difference

of this product are shown in the table.

10"

If the units are further apart than this, correct opera-

(250 mm)

tion cannot be guaranteed.

or more

Pipe length

MAX.

50 m

CUSTOMER GUIDANCE

Explain the following to the customer in accordance with the oper-

CAUTION

ating manual:

(1) Starting and stopping method, operation switching, temperature

adjustment, timer, air flow switching, and other remote control-

ler operations.

(2) Air filter removal and cleaning, and how to use the air louvers.

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

CAUTION

WARNING

Contents of change

Pressure is high and cannot be measured with a conven-

tional (R22) gauge. To prevent erroneous mixing of other

refrigerants, the diameter of each port has been changed.

It is recommended the gauge with seals -0.1 to 5.3 MPa

(-1 to 53 bar) for high pressure.

-0.1 to 3.8 MPa (-1 to 38 bar) for low pressure.

To increase pressure resistance, the hose material

and base size were changed.

A conventional vacuum pump can be used by

installing a vacuum pump adapter.

Special gas leakage detector for HFC refrigerant R410A.

Outer

Thickness

diameter

0.8 mm

165 ft (50 m)

99 ft (30 m)

1.0 mm

WARNING

CAUTION

Maximum height

(between indoor and outdoor)

MIN.

5 m

30 m

Installation instruction on the back

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