Fujitsu SPLIT TYPE AIR CONDITIONER User Manual

UNIVERSAL TYPE - FLOOR / CEILING / WALL

SPLIT TYPE AIR CONDITIONER

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 install 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 instruction sheet.

This symbol refers to a hazard or

WARNING

:

unsafe practice which can result in
severe personal injury or death.

This symbol refers to a hazard or

CAUTION

:

unsafe practice which can result in
personal injury and the potential
for product or property damage.

• Hazard alerting symbols

Electrical

Safety/alert

If Necessary, Get Help

These instructions are all you need for most installation sites and
maintenance 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
INJURY OR DEATH. ONLY A QUALIFIED, EXPERIENCED ELEC­TRICIAN SHOULD ATTEMPT TO WIRE THIS SYSTEM.

• Do not supply power to the unit until all wiring and tubing are
completed or reconnected and checked.

• Highly dangerous electrical voltages are used in this system.
Carefully refer to the wiring diagram and these instructions
when wiring. Improper connections and inadequate ground­ing can cause accidental injury or death.

• Ground the unit following local electrical codes.

• Connect all wiring tightly. Loose wiring may cause overheat­ing at connection points and a possible fire hazard.

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 abnormal vibration.

...In an Area with High Winds

Securely anchor the outdoor unit down with bolts and a metal
frame. Provide 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 starting the test run.

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 particular 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.

Fig. 1-A Fig. 1-B

Outdoor Unit

3/8” (9.53 mm) dia.
5/8” (15.88 mm) dia.

Indoor Unit

Under ceiling

Indoor Unit

Floor console

Outdoor Unit

3/8”
(9.53 mm) dia.

5/8”
(15.88 mm) dia.

1

GENERAL

This INSTALLATION INSTRUCTION SHEET 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
indoor unit and insulation material is available for pur­chase locally. When you purchase them, please speci­fy the following.

(1)

Deoxidized annealed copper pipe for refrigerant piping as:

Table 1

Outer diameter Thickness

Small pipe 3/8” (9.52 mm) 1/32” (0.8 mm)

Large pipe 5/8” (15.88 mm) 3/64” (1.0 mm)

Cut each pipe to the appropriate length +12” (30 cm)
to 16” (40 cm) to dampen vibration between units.

2. ADDITIONAL MATERIALS REQUIRED FOR
INSTALLATION

(1) Refrigeration (armored) tape
(2) Insulated staples or clamps for connecting wire

(See your local electrical codes.)
(3) Putty
(4) Refrigeration lubricant
(5) Clamps or saddles to secure refrigerant piping

3. OPERATING RANGE

Table 2

Indoor Outdoor

air intake air intake

Cooling

Temperature

Maximum 90°F DB, 73°F WB 115°F DB

Minimum 65°F DB, 57°F WB 70°F DB

ELECTRICAL REQUIREMENT

Always make the air conditioner power supply a spe­cial branch circuit and provide a special switch and
receptacle. Do not extend the power cord.

(1) Limit the height difference between

the indoor and outdoor units to
within 26 ft. (8 m).

(2) The maximum length of the piping

is 66 ft. (20 m). If the units are fur­ther apart than this, correct opera­tion can not be guaranteed.

(2)

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).

(3) Use insulated copper wire for field wiring.

Check local electrical codes and regula­tions before obtaining wire. Also , check
any specified instructions or limitations.

MINIMUM CIRCUIT AMPACITY 15A
MAXIMUM OVERCURRENT PROTECTION 20A
(TIME DELAY FUSE OR HACR TYPE CIRCUIT BREAKER)

2

STANDARD PARTS

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

INDOOR UNIT ACCESSORIES

Name and Shape

Cover plate (left)

Cover plate (right)

Tapping screw
(ø4 x 10)

Installation template

Bracket (left)

Bracket (right)

Anchor bolt (M12)

Q’ty

1

1

2

1

1

1

4

Application

For positioning the
indoor unit
For under ceiling type.

For suspending
the indoor unit
from ceiling

Name and Shape

VT wire

Remote control unit

Battery (penlight)

Remote control unit
holder

Tapping screw
(ø3 x 12)

Q’ty

For fixing the drain

1

hose L 280 mm

Use for air condi­tioner operation

1

For remote
control unit

4

For mounting the
remote control

1

unit

For remote
control unit holder

2

installation

OUTDOOR UNIT ACCESSORIES

Application

Spring washer

Spring nut

Wall bracket

Tapping screw
(ø4 x 20)

Coupler heat insulator
(large)

Coupler heat insulator
(small)

Nylon fastener

Drain hose

Insulation (drain hose)

4

4

For suspending the

2

indoor unit on the
wall.

For fixing the wall

6

bracket.
For indoor side

pipe joint

1

(Large pipe)

For indoor side

1

pipe joint
(small pipe)

For fixing the

1

drain hose

1

Adhesive type
70 x 230

1

Name and Shape

Hexagon wrench

Q’ty

Application

For air purge

1

OPTIONAL PARTS FOR INDOOR UNIT

Name and Shape

Joint pipe-A For indoor

Part No.

9302812021

Application

side pipe joint

3

SELECTING THE MOUNTING POSITION

• Under ceiling

Ceiling

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.

(1) Do not install where there is the

danger of combustible gas leakage.
(2) Do not install near heat sources.
(3) 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. INDOOR UNIT

(1) Install the indoor unit level on a strong wall, floor,

ceiling which is not subject to vibration.

(2) The inlet and outlet ports should not be obstructed :

the air should be able to blow all over the room.

(3) Install the unit near an electric outlet or special

branch circuit.

(4) Do not install the unit where it will be exposed to

direct sunlight.

(5) Install the unit where connection to the outdoor unit

is easy.

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

installed.

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

spaces shown in Fig.2. Also install the unit where
the filter can be removed.

Left

6” (15 cm)
or more

Indoor unit

Ceiling

12” (30 cm)
or more

3/4” (2 cm) or more

Right

2. OUTDOOR UNIT

(1) Install the unit where it will not be

tilted by more than 5˚

(2) When installing the outdoor unit

where it may be exposed to strong
wind, fasten it securely .

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

exposed to direct sunlight. (If necessary, install a
blind that does not interfere with the air flow.)

(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) Do not place animals and plants in the path of the

warm air.

(5) Take the air conditioner weight into account and

select a place where noise and vibration are small.

(6) Select a place so that the warm air and noise from

the air conditioner do not disturb neighbors.

(7)

Provide the space shown in Fig. 2 so that the air flow is
not blocked. Also for efficient operation, leave open
three of the four directions front, rear and both sides.

Fig. 2

• Floor console

Left Right

12” (30 cm)
or more

12” (30 cm)
or more

Fig. 3

1’ (30 cm)
or more

1’4” (40 cm) or more

1’ (30 cm)
or more

2’ (60 cm)
or more

4

2’ (60 cm)
or more

INSTALLATION PROCEDURE

Install the room air conditioner as follows:

1.

PREPARING INDOOR UNIT INSTALLATION

1. REMOVE THE INTAKE GRILLE

Open the intake grille and remove the three screws.
(Fig. 4)

Fig. 7

Wall

4” (100 mm)

Indoor side

1/4” (6 mm)

Outdoor side

Fig. 4

Screw

Intake grille

Tapping screw

Remark : The main unit can be wired before

the indoor unit is installed. Select the
most appropriate installation order.

2. INDOOR UNIT INSTALLATION

A. FLOOR CONSOLE TYPE

1. DRILLING FOR PIPING

Select piping and drain directions. (Fig. 5)
The piping and drain can be made in three directions a

shown below.

Fig. 5

Avoid areas where electrical wiring or
conduits are located.

Accidentally cutting a live wire can cause
death or injury.

When installing the set to wall, install the accessory
wall bracket at the position shown in Fig. 8, and
mount the set to it.

Fig. 8

26" (65.5 cm)

21" (53 cm)

1-3/4" (4.5 cm)

39" (99 cm)
20" (50 cm)

2-1/2" (6.5 cm)

4" (10 cm) hole

2" (5 cm) hole

5" (12.5 cm)

4" (10 cm)

9-5/8"

(24.5 cm)

Wall bracket

Side of set

2-1/2" (6.5 cm)

The drain hose can be connected to either the left or
right side. (Fig. 6)

Fig. 6

Drain hose (Left side)

When the directions are selected, drill a 4” (10cm) dia.
hole on the wall so that the hole is tilted downward
toward the outdoor for smooth water flow. When the
pipe is led out from the rear, make a hole in Fig. 7, at
the position shown.

Drain hose (Right side)

2. INSTALLING DRAIN HOSE
INSTALL THE DRAIN HOSE

Select whether the drain hose will be connected to the
left or right side. (Fig. 6)

Insert the drain hose into drain pan, then secure the
drain hose with a nylon fastener. (Fig. 9)

Fig. 9

Drain pan

Nylon fastener

Drain hose

5