Daikin FCQ18PVJU, FCQ24PVJU, FCQ30PVJU Installation Manual

INSTALLATION MANUAL

SPLIT SYSTEM Air Conditioners

MODELS

Ceiling-mounted Cassette type (Multi fl ow model)

FCQ18PVJU
FCQ24PVJU
FCQ30PVJU

English

Français

Read these instructions carefully before installation.
Keep this manual in a handy place for future reference.
This manual should be left with the equipment owner.

Lire soigneusement ces instructions avant l’installation.
Conserver ce manuel à portée de main pour référence ultérieure.
Ce manuel doit être donné au propriétaire de l’équipement.

Lea cuidadosamente estas instrucciones antes de instalar.
Guarde este manual en un lugar a mano para leer en caso de tener alguna duda.
Este manual debe permanecer con el propietario del equipo.

Español

SPLIT SYSTEM Air Conditioners Installation manual

CONTENTS

1. SAFETY CONSIDERATIONS ........................................... 1

2. BEFORE INSTALLATION .................................................. 2

3. SELECTING INSTALLATION SITE ................................... 3

4. PREPARATIONS BEFORE INSTALLATION ..................... 4

5. INSTALLATION PROCEDURES FOR FRESH AIR

INTAKE DUCT CONNECTION .......................................... 5

6. INDOOR UNIT INSTALLATION ......................................... 6

7. REFRIGERANT PIPING WORK ....................................... 7

8. DRAIN PIPING WORK ...................................................... 8

9. ELECTRIC WIRING WORK .............................................. 9

10. WIRING EXAMPLE AND HOW TO SET THE REMOTE

CONTROLLER ................................................................ 10

11. FIELD SETTING.............................................................. 12

12. INSTALLATION OF THE DECORATION PANEL ............. 12

13. TEST OPERATION ......................................................... 13

SAFETY CONSIDERATIONS1.

Please read these “SAFETY CONSIDERATIONS” carefully
before installing air conditioning equipment and be sure to
install it correctly. After completing the installation, make sure
that the unit operates properly during the start-up operation.
Please instruct the customer on how to operate the unit and
keep it maintained.
Also, inform customers that they should store this installation
manual along with the operation manual for future reference.
This air conditioner comes under the term “appliances not
accessible to the general public”.
Meaning of danger, warning, caution and note symbols.

DANGER ................ Indicates an imminently hazardous

situation which,if not avoided, will
result in death or serious injury.

WARNING .............. Indicates a potentially hazardous

situation which, if not avoided, could
result in death or serious injury.

CAUTION ............... Indicates a potentially hazardous

situation which, if not avoided, may
result in minor or moderate injury. It
may also be sued to alert against
unsafe practices.

NOTE ..................... Indicates situation that may result in

equipment or property-damage-only
accidents.

DANGER

Do not ground units to water pipes, telephone wires or •
lightning rods because incomplete grounding could
cause a severe shock hazard resulting in severe injury
or death, and to gas pipes because a gas leak could
result in an explosion which could lead to severe injury
or death.

Do not install unit in an area where fl ammable materials •
are present due to risk of explosion resulting in serious
injury or death.
Refrigerant gas in heavier than air and displaces oxy- •
gen. A massive leak could lead to oxygen depletion,
especially in basements, and an asphyxiation hazard
could occur leading to serious injury or death.
If the refrigerant gas leaks during installation, ventilate •
the area immediately.

Refrigerant gas may produce toxic gas if it comes in contact
with fi re such as from a fan, heater, stove or cooking device.
Exposure to this gas could result in severe injury or death.

After completing the installation work, check that the •
refrigerant gas does not leak.

Refrigerant gas may produce toxic gas if it comes in contact
with fi re such as from a fan, heater, stove or cooking device.
Exposure to this gas could result in severe injury or death.
Safely dispose of the packing materials. •
Packing materials, such as nails and other metal or wooden
parts, may cause stabs or other injuries. Tear apart and
throw away plastic packaging bags so that children will not
play with them. Children playing with plastic bags face the
danger of death by suffocation.

WARNING

Ask your dealer or qualifi ed personnel to carry out •
installation work. Do not try to install the unit by your­self.

Improper installation may result in water leakage, electric
shocks or fi re.

Perform installation work in accordance with this instal- •
lation manual.

Improper installation may result in water leakage, electric
shocks or fi re.

Be sure to use only the specifi ed accessories and parts •
for installation work.

Failure to use the specifi ed parts may result in water leak­age, electric shocks, fi re or the unit falling.

Install the air conditioner on a foundation strong •
enough to withstand the weight of the unit.

A foundation of insuffi cient strength may result in the equip­ment falling and causing injuries.

Carry out the specifi ed installation work after consider- •
ing strong considering winds, typhoons or earth­quakes.

Improper installation work may result in the equipment
falling and causing accidents.

Make sure that a separate power supply circuit is pro- •
vided for this unit and that all electrical work is carried
out by qualifi ed personnel according to local laws and
regulations and this installation manual.

An insuffi cient power supply capacity or improper electrical
construction may lead to electric shocks or fi re.

Make sure that all wiring is secured, the specifi ed wires •
are used, and no external forces act on the terminal
connections or wires.

Improper connections or installation may result in fi re.

1 English

When wiring the power supply and connecting the •
remote controller wire and transmission wire, position
the wires so that the control box lid can be securely
fastened.

Improper positioning of the control box lid may result in
electric shocks, fi re or the terminals overheating.

Before touching electrical parts, turn off the unit. •
Do not touch the switch with wet fi ngers. •

Touching a switch with wet fi ngers can cause electric shock.
Be sure to install an earth leakage breaker. •
Failure to install an earth leakage breaker may result in
electric shocks, or fi re.

Do not install the air conditioner in the following loca- •
tions:

(a) where a mineral oil mist or an oil spray or vapor is

produced, for example in a kitchen
Plastic parts may deteriorate and fall off or result in
water leakage.

(b) where corrosive gas, such as sulfurous acid gas, is

produced
Corroding copper pipes or soldered parts may result in
refrigerant leakage.

(c) near machinery emitting electromagnetic waves

Electromagnetic waves may disturb the operation of the
control system and result in a malfunction of the equip­ment.

(d) where fl ammable gases may leak, where there are

carbon fi ber or ignitable dust suspensions in the air, or
where volatile fl ammables such as thinner or gasoline
are handled.

Operating the unit in such conditions may result in fi re.
Heat exchanger fi ns are sharp to cut. •
To avoid injury wear gloves to cover the fi ns when working
around them.

Refrigerant pipes may be very hot or very cold during •
or immediately after operation.

Touching them could result in burns or frostbite. To avoid
injury give the pipes time to return to normal temperature
or, if you must touch them, be sure to wear proper gloves.

CAUTION

While following the instructions in this installation •
manual, install drain pipe in order to ensure proper
drainage and insulate pipe in order to prevent conden­sate.

Improper drain pipe may result in water leakage and prop­erty damage.
Be very careful about product transportation. •
Some products use PP bands for packaging. Do not use
any PP bands for a means of transportation. It is danger­ous.
Safely dispose of the packing materials. •
Packing materials, such as nails and other metal or wooden
parts, may cause stabs or other injuries.
Tear apart and throw away plastic packaging bags so that
children will not play with them. If children play with a plastic
bag which was not torn apart, they face the risk of suffoca­tion.

Do not turn off the power immediately after stopping •
operation.

Always wait at least 5 minutes before turning off the power.
Otherwise, water leakage and trouble may occur.

Make sure to provide for adequate measures in order to •
prevent that the outdoor unit be used as a shelter by
small animals.

Small animals making contact with electrical parts can
cause malfunctions, smoke or fi re. Please instruct the
customer to keep the area around the unit clean.

NOTE

Install the indoor and outdoor units, power supply wire •
and transmission wire at least 3.5ft. away from televi­sions or radios in order to prevent image interference
or noise.

(Depending on the radio waves, a distance of 3.5ft. may not
be suffi cient enough to eliminate the noise.)

Remote controller (wireless kit) transmitting distance •
can result shorter than expected in rooms with elec­tronic fl uorescent lamps. (inverter or rapid start types)

Install the indoor unit as far away from fl uorescent lamps as
possible.

In a domestic environment this product may cause •
radio interference in which case the user may be re­quired to take adequate measures.
Dismantling of the unit, treatment of the refrigerant, oil •
and eventual other parts, should be done in accor­dance with the relevant local and national regulations.

BEFORE INSTALLATION2.

When moving the unit while removing it from the pack- •
ing case, be sure to lift it by the four hanger brackets.
Avoid putting any pressure on other parts especially
the refrigerant piping.

Be sure to check the type of R410A refrigerant to be used •
before installing the unit. (Using an incorrect refrigerant will
prevent normal operation of the unit.)
The accessories needed for installation must be retained in •
your custody until the installation work is completed. Do not
discard them!
Decide upon a line of transport.•
Leave the unit inside its packaging while moving, until •
reaching the installation site. Where unpacking is unavoid­able, use a sling of soft material or protective plates togeth­er with a rope when lifting, to avoid damage or scratches to
the unit.
When moving the unit at or after opening, hold the unit by •
the hanger brackets (× 4). Do not apply force to the refriger­ant pipe, drain pipe or plastic parts.
For the installation of an outdoor unit, refer to the installa-•
tion manual attached to the outdoor unit.
Do not install or operate the unit in rooms mentioned below.•

Laden with mineral oil, or fi lled with oil vapor or spray •
like in kitchens. (Plastic parts may deteriorate which
could eventually cause the unit to fall out of place, or
could lead to leaks.)
Where corrosive gas like sulfurous gas exists. •
(Copper tubing and brazed spots may corrode which
could eventually lead to refrigerant leaks.)
Where machines can generate electromagnetic •
waves. (Control system may malfunction.)
Where the air contains high levels of salt such as that •
near the ocean and where voltage fl uctuates greatly
such as that in factories. Also in vehicles or vessels.

English 2

3 English

This unit, both indoor and outdoor, is suitable for installation •
in a commercial and light industrial environment.
If installed as a household appliance it could cause electro­magnetic interference.

WARNING

Entrust installation to the place of purchase or a qualifi ed •
person. Improper installation could lead to leak and, in
worse cases, electric shock of fi re.
Use of unspecifi ed parts could lead to the unit falling, leaks •
and, in worse cases, electric shock or fi re.

NOTE

Be sure to read this manual before installing the indoor unit.•
Be sure to mount an air fi lter (part to be procured in the fi eld) in

•
the suction air passage in order to prevent water leaking, etc.

ACCESSORIES2-1

Check the following accessories are included with your unit.

Name

Quantity 1 pc. 1 pc. 8 pcs. 4 pcs.

Shape

Name

Quantity 1 pc. 4 pcs. 4 pcs. 1 each

Shape

Name Sealing pad

Quantity 1 each 2 pcs.

Shape

(1) Drain

hose

(5) Paper

pattern for

installation

Also used

as packing

material

(10) Large

(11) Medium

(2) Metal

clamp

(6) Screws

(M5)

For paper

pattern for

installation

(12) Small

(3) Washer for

hanger
bracket

(7) Washer
fi xing plate

Installation manual •

Operation manual •

(4) Clamp

Insulation

for fi tting

(8) for gas

pipe

(9) for liquid

pipe

(Other)

OPTIONAL ACCESSORIES2-2

The optional decoration panel and remote controller are •
required for this indoor unit.

Table 1

Model

FCQ18 · 24 · 30PVJU BYC125K-W1

Optional decoration panel

Color White

Table 2

Remote controller

Wired type BRC1C71

Wireless type BRC7C812

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

a. Items to be checked after completion of work

Items to be checked

Are the indoor and outdoor unit
fi xed fi rmly?

Is the gas leak test fi nished?

Is the unit fully insulated? Condensate water may drip.

Does drainage fl ow smoothly? Condensate water may drip.

Does the power supply voltage
correspond to that shown on
the name plate?

Are wiring and piping correct?

Is the unit safely grounded? It may result in electric shock.

Is wiring size according to
specifi cations?

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

Are refrigerant piping length
and additional refrigerant
charge noted down?

If not properly done, what is
likely to occur.

The units may drop, vibrate or
make noise.

It may result in insuffi cient
cooling.

The unit may malfunction or the
components burn out.

The unit may malfunction or the
components burn out.

The unit may malfunction or the
components burn out.

It may result in insuffi cient
cooling.

The refrigerant charge in the
system is not clear.

Check

b. Items to be checked at time of delivery

Also review the “1. SAFETY CONSIDERATIONS”

Items to be checked Check

Did you explain about operations while showing the operation
manual to your customer?

Did you hand the operation manual over to your customer?

NOTE TO INSTALLER2-3

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

SELECTING INSTALLATION SITE3.

Please attach additional thermal insulation material to the unit
body when it is believed that the relative humidity in the ceiling
exceeds 80%. Use glass wool, polyethylene foam, or similar
with a thickness of 3/8 in.. or more as thermal insulation mate­rial.

Select an installation site where the following conditions (1)
are fulfi lled and that meets with your customer’s approval.

In the upper space (including the back of the ceiling) of the

•
indoor unit where there is no possible dripping of water
from the refrigerant pipe, drain pipe, water pipe, etc.
Where optimum air distribution can be ensured.•
Where nothing blocks the air passage.•

English 4

Where condensate can be properly drained.•

False
ceiling

Hanger

bracket

[View as seen from A]

(5 15/16)

(length: in.)

Where the false ceiling is not noticeably on an incline.•
Where suffi cient clearance for maintenance and service •
can be ensured.
Where piping between indoor and outdoor units is •
possible within the allowable limit. (Refer to the installa­tion manual of the outdoor unit.)

DANGER

Do not install unit in an area where fl ammable materials are •
present due to the risk explosion resulting in serious injury
or death.

WARNING

If the supporting structural members are not strong enough •
to take the unit’s weight, the unit could fall out of place and
cause serious injury.

NOTE

Install the indoor and outdoor units, power supply wire and •
connecting wires at least 3.5ft. away from televisions or
radios in order to prevent image interference or noise.
(Depending on the radio waves, a distance of 3.5ft. may not
be suffi cient enough to eliminate the noise.)

Model H

FCQ18 · 24 · 30PVJU 11 3/4 or more

PREPARATIONS BEFORE INSTALLATION

4.

Relation of ceiling opening to unit and suspension (1)
bolt position

33 1/16 (Indoor unit)

34 5/8 (Ceiling opening)

37 3/8 (Decoration panel)

30 11/16 (Suspension bolt pitch)

26 3/4 (Suspension bolt pitch)

33 1/16 (Indoor unit)

34 5/8 (Ceiling opening)

37 3/8 (Decoration panel)

A

(length: in.)

Refrigerant
pipe

Suspension
bolt (×4)

Ceiling height(2)

This indoor unit may be installed on ceilings up to 10.5 ft.
in height.

Use suspension bolts for installation. Check whether (3)
the ceiling is strong enough to support the weight of
the unit or not. If there is a risk, reinforce the ceiling
before installing the unit.

(Installation pitch is marked on the paper pattern for
installation. Refer to it to check for points requiring rein­forcing.)

[Space required for installation]

H

59

or more

Air
discharge

Air discharge

Air

39 3/8 or more

inlet

59

or more

Installation is possible when ceiling opening dimensions is 
as follows.

When installing the unit within the frame for fi xing false •
ceiling.

35 13/16

33 1/16 (Indoor unit)

(Dimension inside frame)

Air

59

or more

discharge

Air inlet

discharge

Air

H

59

or more

33 1/16 (Indoor unit)

35 13/16

(Dimension inside frame)

(length: in.)