background image

!

  A circuit breaker or fuse (25A time delay) must be installed. Without a circuit breaker or fuse the danger of electric shock exists.

The external switch shall be incorporated to completely disconnect from power supply. It should disconnect all poles, and a contact separation of 
at least 3mm must be present.

  Do not install the unit near a location where there is 

fl

 ammable gas. The outdoor unit may catch 

fi

 re  if 

fl

 ammable gas leaks around it.

Do not install the indoor unit in a machine shop or kitchen where vapor from oil or its mist 

fl

 ows to the indoor unit. The oil will deposit on the heat exchanger, thereby

reducing the indoor unit performance and may deform and in the worst case, breake the plastic parts of the indoor unit.

  Please ensure smooth 

fl

 ow of water when installing the drain hose.

  Piping shall be suitably supported with a maximum spacing of 1m between the supports.

CAUTION

Installation of Hanger, Wall Penetration and Installation of Protection Pipe

!

The draining of the water container inside the indoor unit can be done from the
left. Therefore the hanger must be 

fi

 xed horizontally or slightly tilted towards the

side of drain hose. Otherwise, condensed water may over

fl

 ow the water container.

Please use hidden beams in the wall to hold the hanger.

Wall Penetration and Installation of Protection Pipe

 

Drill a ø 65mm hole on
wall which is slightly 
t i l t e d   t o w a r d s   t h e 
outdoor side. Drill the 
wall at a small angle.

Cut the protection pipe
according to the wall
thickness.

Empty gap in the sleeve
of protection pipe should
be completely sealed to
avoid dripping of rain
water into the room.

   Installation of the Indoor Unit

2

VERTICALLY DOWNWARD PIPING

  Preparation

Connect connecting cord.

Pull out the pipe, connecting cord and drain hose.

  Installation

The upper part of the Indoor unit is hanged on the hanger.

The projection at the lower part of the Indoor unit is hooked onto the hanger.

Please pull the lower part of 
the Indoor unit outwards to 
check if the unit is hooked 
onto the hanger. Improper 
i n s t a l l a t i o n   m a y   c a u s e 
vibration and noise.

!

CAUTION

HORIZONTAL PIPING

Preparation

Change of Drain Hose and Installation Procedures.

  Exchange the location of drain hose and drain cap during horizontal piping as shown in

fi

 gure below. Be sure to plug in the drain hose until the insulating material folds upon itself.

Please use pliers to pull out the drain cap.
(This is an easier way to remove the drain cap).

INSTALLATION OF REFRIGERATING PIPES AFTER CONNECTION

The refrigerating pipes should be adjusted to 

fi

 t 

into the hole on the wall and then ready for further 
connection.

The terminals of 2 connected pipes must be covered
with insulator used for terminal connection. Then the
pipes are wrapped with insulation pipe.

Connect the connecting cord after removing electrical 
cover. (Refer to “CONNECTION OF POWER CORD”)

After adjustment, 

fi

 t the connecting cord and pipes

into the space available under the indoor unit. Use
holder to hold them tight.

!

CAUTION

The rubber strap used for

fi

 xing the insulator should

not be tied with great force.
Otherwise, this will damage 
heat insulation and causes 
water condensation.

 

Holder can be attached at the either of 2 places.
Please select the easier position.

THE CONNECTION OF REFRIGERATING PIPE DURING THE 
INSTALLATION OF INDOOR UNIT

Preparation To Install Refrigerating Pipes

!

CAUTION

Please 

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 x in the plastic core 

after 

fl

 aring to avoid plastic

chips entering the pipes.

CAUTION

!

You are free to choose the side (left or right) for the installation of drain 
hose. Please ensure the smooth 

fl

 ow of condensed water of the Indoor 

unit during installation. (Carelessness may result in water leakage.)

!

CAUTION

Be sure that the 
drain hose is not 
loosely connected 
or bend.

Be sure that the wire is not 
in contact with any metal 
in the wall. Please use 
the protection pipe as wire 
passing through the hollow 
part of the wall so as to 
prevent the possibility of 
damaged by mouse.
Unless it seals completely, 
any air with high humidity 
flows from outdoor and 
any dew may drop.

!

WARNING

The refrigerating pipes and connecting cord
transform and are attached.

The end of the refrigerating pipes are at locations
marked with “    ” symbol.

   Installation of Drain Hose

3

  Installation

Hang the Indoor unit onto the hanger. Use the temporary 
stand at the back of the Indoor unit to push its lower part 
15cm forwards.

Place the drain hose through the hole on the wall.

Wrap the refrigerating pipes with insulation pipe after
connecting refrigerating pipe. (As shown as right 

fi

 gure)

Connect the connecting cord after removing electrical cover. 
(Refer to “Connection of Power Cord”)

After adjustment, the connecting cord and refrigerating pipes 
are placed into the space available under the Indoor unit.

The projection of Indoor unit must hook to the hanger.

INDOOR UNIT

<

IA1251: A 

>

HOW TO REMOVE INDOOR UNIT FROM HANGER 

  Pull down PULL section on the bottom of indoor 

unit and pull it towards you, then claws are
released from hanger. (Indicated by 2 arrows
in the drawing on the right.)

When bottom face of indoor unit cannot be  
pulled due to obstacles, etc. Remove front cover, 
insert screw driver into circle hole, pull claws
down and pull indoor unit towards you.

Please check how to remove and attach front
cover in this instruction manual.

!

CAUTION

Condensed water may leak out if not inserted properly.

HORIZONTAL & DOWNWARD PIPING – MAKING OPENINGS

During horizontal or downward piping, use a knife to cut
openings as shown in 

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 gure. Then smoothen the edges of

openings with a 

fi

 le.

Turn the piping while holding down the lower
portion of pipe-support by hand.

Heat insulation pipe

Connecting
cord

Refrigerating pipe

Pull this to the front 
during the connection 
of refrigerating pipes 
to ease task.

SPLIT UNIT AIR CONDITIONER 

INSTALLATION MANUAL

Indoor Unit 

 Outdoor Unit

 RAS-F24CF 

 

RAC-F24CF

Carefully read through the procedures of proper
installation before starting installation work.

 The sales agent should inform customers regarding

the correct operation of installation.

Tools Needed For Installation Work

SAFETY PRECAUTION

!
!

!

  Please request your sales agent or quali

fi

 ed technician to install your unit. Water leakage, short circuit or 

fi

 re may occur if you do the installation work yourself.

  Please observe the instructions stated in the installation manual during the process of installation. Improper installation may cause water leakage, electric shock and 

fi

 re.

  Make sure that the units are mounted at locations which are able to provide full support to the weight of the units. If not, the units may collapse and impose danger.

  Observe the rules and regulations of the electrical installation and the methods described in the installation manual when dealing with the electrical work. Use power cables 

approved by the authorities of your country.

  Be sure to use the speci

fi

 ed wire for connecting the indoor and outdoor units. Please ensure that the connections are tight after the conductors of the wires are inserted 

into the terminals. Improper insertion and loose contact may cause overheating and 

fi

 re.

  Please use the speci

fi

 ed components for installation work. Otherwise, the units may collapse or water leakage, electric shock and 

fi

 re may occur.

  Be sure to use the speci

fi

 ed piping set for R410A. Otherwise, this may result in broken copper pipes or faults.

  When installing or removing an air conditioner, only speci

fi

 ed refrigerant (R410A) shall be allowed. Do not allow air or moisture to remain in the refrigeration cycle. Otherwise, 

pressure in the refrigeration cycle may become abnormally high which may result in a rupture.

  Be sure to fully ventilate the work area if there is a refrigerant gas leak. If the refrigerant gas comes into contact with 

fi

 re, a poisonous gas may occur.

  After completion of installation work, check to make sure that there is no refrigeration gas leakage. If the refrigerant gas leaks into the room, a poisonous gas may occur 

when coming into contact with 

fi

 re in the fan-driven heater, space heater, etc.

Unauthorized modi

fi

 cations to the air conditioner may be dangerous. If a breakdown occurs, electric shock and 

fi

 re, etc. please call a quali

fi

 ed air conditioner technician or 

electrician. Improper repairs may result in water leakage.

FOR SERVICE PERSONNEL ONLY

THE CHOICE OF MOUNTING SITE 

  (Please note the following matters and obtain permission from customer before installation).

!

The unit should be mounted at stable, non-vibratory location
which can provide full support to the unit.

!

The Outdoor unit must be mounted at a location which can sup-
port heavy weight. Otherwise, noise and vibration will increase.

!

No nearby heat source and no obstruction near the air outlet is
allowed.

The clearance distances from top, right and left are speci

fi

 ed  in 

fi

 gure  below.

The location must be convenient for water drainage and pipe
connection with the Outdoor unit.

To avoid interference from noise please place the unit and its
remote controller at least 1m from the radio, television and inverter 
type 

fl

 uorescent  lamp.

  To avoid any error in signal transmission from the remote controller,

please put the controller far away from high-frequency machines 
and high-power wireless systems.

The installation height of indoor unit from 

fl

 oor must be 2.3m or

more.

!

  Selecting the installation location: Suitable location that will reduce 

the impact from rain and direct sun that may affect the unit
performance. Besides that, ventillation must be good and clear
of obstruction.

The air blown out of the unit should not point directly to animals
or plants.

The clearances of the unit from top, left, right, front and back are
speci

fi

 ed  in 

fi

 gure below. At least 3 of the above sides must be

open air.

Be sure that the hot air blown out of the unit and noise do not
disturb the neighbourhood.

Do not install at a location where there is 

fl

 ammable  gas,  steam, 

oil and smoke.

The location must be convenient for water drainage.

Place the Outdoor unit and its connecting cord at least 1m away
from the antenna or signal line of television, radio or telephone.
This is to avoid noise interference.

Do not install outdoor unit facing strong wind direction. It may
damage the fan motor.

INDOOR UNIT

Figure showing the Installation of Indoor and Outdoor Unit.

OUTDOOR UNIT

Direction of Piping

Dimension of Mounting Stand

of the Outdoor unit

(unit : mm)

T h e r e   a r e   4   d i r e c t i o n s 
allowed, namely, horizontally 
perpendicular to the unit, 
vertically down from right, 
horizontally out from right and 
horizontally out to left.
Don’t form the piping downward 
at the left of the unit.

The difference in height
between the indoor and
outdoor unit should be
kept max 10m.

The connecting pipe,
no matter big or small,
should all be insulated
with insulation pipe and
then wrapped with vinyl
tape. (The insulator will
deteriorate if it is not
wrapped with tape).

The connection of insulated 
drain hose.

Please use insulated drain 
hose for the indoor piping 
(commercial product).

The indoor piping should be 
insulated with the enclosed 
insulation pipe. (If the 
insulator is insufficient, 
please use commercial 
products).

Be sure to 
completely 
seal any 
gap.

!

CAUTION

The installation height
of indoor unit must be
2.3m or more.

Names of Indoor Components

Hanger

Qty

No.

Item

1

Screw for holder of 
Remote Controller

( 3 . 1 x 1 6 )

AAA Size Battery

Holder for Remote 
Controller

( 4 . 1 x 3 2 )

Remote Controller

6

1

2

2

1

Screw for Hanger

In case the pipe length is more than 
8m, add refrigerant R410A at 10 gram 
per every meter exceeds. However, 
pipe length shall not exceed 15m.

!

CAUTION

This air conditioner uses new refrigerant HFC (R410A)

The basic installation work procedures are the same as conventional refrigerant (R22) models.
However, pay careful attention to the following points:

(1)  Since the working pressure is 1.6 times higher than that of conventional refrigerant (R22) models, some of the piping and installation and service tools are special. 

Especially, when replacing a conventional refrigerant (R22) model with a new refrigerant R410A model, always replace the conventional piping and 

fl

 are nuts with the                              

R410A piping and 

fl

 are  nuts.

(2)  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 diameter for R410A is 1/2 UNF 20 threads per inch.]

(3)  Be more careful that foreign matter (oil, water, etc.) does not enter the piping than with refrigerant (R22) models. Also, when storing the piping, securely seal the 

openings by pinching, taping, etc.

(4)  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 side whose 

composition is stable.

WARNING

WARNING

CAUTION

WARNING

CAUTION

1

2

3

4

5

6

Ê

Procedures of Installation and Precautions

Procedures to 

fi

 x the hanger.

1. Drill holes on wall.

2. Push plug into the holes.

3. Fix the hanger on wall

(As shown below)

(As shown below)

with 4.1 x 32 screw

(As shown in 

fi

 gure  below)

Procedures to 

fi

 x the holder of remote control.

1. Drill holes on wall.

2. Push plug into the holes.

(As shown below)

(As shown below)

(

 mark is tool exclusive use for R410A)

 

+   –  Screwdriver 

     

   

 Measuring Tape  

 

 

 Knife   

 Saw

● 

Pipe Cutter   

 Hexagonal Wrench Key (

 4mm)

Power Drill (ø 65mm ~ ø 80mm)

Vacuum Pump

Pliers or Wrench

Torque Wrench

Vacuum Pump

Adaptor   

 Flare Tool   

 Gas Leakage Detector 

 Manifold Valve 

 Charge Hose 

Reammer 

 

File

Read the safety precautions carefully before operating the unit.

The contents of this section are vital to ensure safety. Please pay special attention to the following sign.

WARNING ........ Incorrect methods of installation may cause death or serious injury.
CAUTION ......... Improper installation may result in serious consequence.

 

Be sure that the unit operates in proper condition after installation. Explain to customer the proper way of 
operating the unit as described in the user’s guide.

CAUTION

INS RAS-RAC-F24CF (EN).indd   1

INS RAS-RAC-F24CF (EN).indd   1

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