background image

above 50mm

above 100mm

above 

0.45m

above 300mm

must not bend

above 100mm

2,300mm or more

1

2

4

5

3

Pipe length refer to outdoor Installation Manual

Plug

7

SPLIT UNIT AIR CONDITIONER 

INSTALLATION MANUAL

Indoor Unit

RAK-70NHA1

+  –  Screwdriver 

 

  ●

 Measuring Tape

Knife

Saw  

  ø 65mm Power Drill  

 Hexagonal Wrench

Key (    4mm)  

 Wrench (14, 17, 22, 26, 27mm) 

Gas Leakage Detector

Pipe Cutter

Putty

  

Vinyl Tape

Pliers

Flare Tool

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

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.

!

!

WARNING

!

CAUTION

!

 

A circuit breaker or fuse (20A time delay) must be installed. Without a circuit breaker or fuse the danger of electric shock
exists.
A main switch with a contact gap of more than 3mm has to be installed in the power supply line to the outdoor unit.

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.

Please ensure smooth 

fl

 ow of water when installing the drain hose.

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

 

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 wire are inserted into the terminals. Improper insertion and loose contact may cause over-heating
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 R-410A. 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 so that a
rupture may be caused.

Be sure to ventilate fully if a refrigerant gas leak while at work. 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, coming into contact with 

fi

 re in the fan-driven heater, space heater, etc., a poisonous gas may occur.

Unauthorized modi

fi

 cations to the air conditioner may be dangerous. If a breakdown occurs please call a quali

fi

 ed  air 

conditioner technician or electrician. Improper repairs may result in water leakage, electric shock and 

fi

 re,  etc.

FOR SERVICE PERSONNEL ONLY

THE CHOICE OF MOUNTING SITE 

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

WARNING

!

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

CAUTION

!

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 must be 2.3m or more.

INDOOR 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 commersial 
products).

inner diameter ø 16mm

Installation of Hanger, Wall Penetration and Installation of Protection Pipe

1

CAUTION

!

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.

Direct Mounting On The Wall

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 tilted 
towards the 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 with
putty to avoid dripping of 
rain water into the room.

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)

   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 

fi

 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.

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

<

IA100: A 

>

External dimension of

indoor unit

1 0mm

1 0mm

0mm

1030mm

ø 65mm

200mm

45mm

30mm

Drain Hose

45mm

2mm

Level

Line

Hole for
pipe

Mark

Weight

Screw for Mounting plate

Please use more

than 4 screws.

Mounting

Plate

20mm

Hanger

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.

Sleeve of
protection
pipe

WALL

Protection
pipe

Seal with
putty

Seal with
putty

2   5mm

Outdoor

Indoor

Connecting cords,
pipe and drain hose
must be tied together
with Vinyl tape.

Hanger

Hook

Refrigerating
Pipe

Connecting
Cord

Drain Hose

Protection
Pipe

Lift the body
of the unit
upwards and
then force
it downwards.

Hanger

Projection

Screw driver

Claw of indoor unit

Circle hole

2

1

!

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 

fi

 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.

Drain hose

Drain cap

Drain cap

Please insert
until here

Drain hose

Please insert
until here

Pipe 
support

Pull up the pipe after
bending downward

Openings

Pipe

Connecting cord

Drain hose

Insulation pipe (must be wrapped with
vinyl tape at every 120mm).

Holder

Insulation pipe

6

Pipe

Rubber strap tied with great force

below
5mm

Please bend at a small
radius to form an arc

about 15cm

Projection

Temporary stand

Connected

section

Holder

Connecting cord

Drain hose

Protection

pipe

Heat insulation pipe

Connecting
cord

Refrigerating pipe

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

Bending
upwards

Condensed
water pond

Ditch

Condensed
water pond

Names of Indoor Components

Hanger

Qty

No.

Item

The Length of Indoor Unit Con-

necting Cord

Figure showing the Installation 
of Indoor and Outdoor Unit.

1

Screw for holder of 
Remote Controller

( 3 . 1 x 1 6 )

AAA Size Battery

Direction of Piping

Holder for Remote Con-
troller

T h e r e   a r e   6   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.

( 4 . 1 x 3 2 )

Remote Controller

Purifying Filter

6

1

2

2

1

1

Insulation pipe

1

Screw for Hanger

0. m

1.6m

Connection

Horizontally

perpendicular

to the unit

Holder

1

Be sure to 
completely 
seal any gap 
with putty.

1

2

3

4

5

6

7

8

9

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