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The Outdoor unit must be mounted at a location which can support heavy 

weight. Otherwise, noise and vibration will increase.

Do not  expose  the  unit  

under  

direct

 

sunshine

 

or

 

rain .Besides,  ventilation

 

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 and front are specified in figure

below . At least three 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 flammable gas,steam, oil and smoke.

The location  must be convenient  for water drainage.

Place the Outdoor unit and its connecting cord at least 1 m away from the antenna

or signal line of television, radio or telephone. This is to avoid noise interference.

A circuit breaker must be installed  in the house distribution box  for the direct 

connected  power supply  cables to the outdoor  unit. In case  of other installations 

a main switch with a contact gap or more than 3mm has to be installed.

Without  a circuit breaker, the danger of electric shock exists.
Do not install the unit near a location where there is flammable gas. 
The outdoor unit may catch fire if flammable gas leaks around it.
Please ensure smooth flow of water when installing the drain hose. Improper 

installing may wet your funiture.
An IEC approved power cord should be used. Power cord type: NYM.

 WARNING

 CAUTION

 CAUTION

THE CHOICE OF MOUNTING SITE

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

FOR   SERVICE   PERSONNEL   ONLY

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.

 Make sure to connect earth line.

    This sign in the figures indicates prohibition.

Be sure that the unit operates in proper condition after installation. Explain to customer the proper operation and maintenance of
the unit as described in the user' s guide. Ask a customer to keep this installation manual together with the instruction manual.

 WARNING

Please request your sales agent or qualified technician to install your unit. Water leakage, short circuit or fire may occur if you do the

installation work yourself.

Please observe the installation stated in the installation manual during the process of installation. Improper installation may cause

water leakage, electric shock and fire.

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 cables which are approved official in your country. Be sure to use the specified circuit. A short circuit and

fire may occur due to the use of low quality wire or improper work.

Be sure to use the specified cables 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 to prevent the external force is being applied to the connection section of the

terminal base. Improper insertion and loose contact may cause over-heating and fire.

Please use the specified components for installation work. Otherwise, the unit may collapse or water leakage, electric shock, fire or

stronger vibration may occur.

Be sure to use the specified piping set for R410A. Otherwise, this may result in broken copper pipes or faults.

When installing or transferring an air conditioner to another location, make sure that air other than the specified refrigerant (R410A)

does not enter the refrigeration cycle. If other air should enter, the pressure level of the refrigeration cycle may increase abnormally

which could result in a rupture and injury.

Be sure to ventilate fully if a refrigerant gas leak while at work. If the refrigerant gas comes into contact with fire, 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 fire in the fan-driven heater, space heater, etc., a poisonous gas may occur.

Unauthorized modifications to the air conditioner may be dangerous. If a breakdown occurs please call a qualified air conditioner

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

Be sure to connect the earth line from the power supply wire to the outdoor unit and between

the outdoor and indoor unit. Do not connect the earth line to the gas tube, water pipe, lighting rod or the earth line of the

telephone unit. Improper earthing may cause electric shocks.

When finishing the refrigerant collection (pumping down), stop the compressor and then remove the coolant pipe.

If you remove the refrigerant pipe while the compressor is operating and the service valve is released, air is sucked and a

pressure in the freezing cycle system will build up steeply, causing an explosion or injury.

When installing the unit, be sure to install the refrigerant pipe before starting the compressor.

If the refrigerant pipe is not installed and the compressor is operated with the service valve released, air is sucked and the

pressure level of the refrigeration cycle may increase abnormally which could result in a rupture and injury.

The electric cables should neither be reworked nor  added.

Make sure to use an exclusive circuit breaker.

Otherwise fire or electric shock might occur by connection failure, isolation failure or over current. 

Make sure to connect cables to terminal properly and terminal cover should close firmly. 

Otherwise,  over heating at terminal contact, fire or electric shock might occur.
Make sure that there is no dust on  any connected points of electric cables and fix firmly.

Otherwise, fire or electric shock might occur. 

Please mount the Outdoor unit of stable ground to prevent vibration and increase of noise level.

Decide the location for piping after sorting out the different types of pipe available.

When removing side cover, please pull the handle after undoing the hook by pulling it downward. Reinstall the side cover in the

CONDENSED WATER DISPOSAL OF OUTDOOR UNIT

There is holes on the base of Outdoor unit for condensed water to exhaust.

In order to flow condensed water to the drain, the unit is installed on a stand or a block so that the unit is 100mm above the
ground as shown figure.  Join the drain pipe to one hole.

After installation, check whether the drain pipe clings to the base firmly.

Install the outdoor unit horizontally and make sure that condensate drains away.

In case of using in chilly area

pecially, in case that there are many snows by very  cold in chilly area, condensed water freezes

on the base and may result not to drain.  In this case, please remove the bush and the drain pipe at the bottom of unit.(Left and

  

center near discharge portion of air, each 1 place).It becomes smooth drain.Ensure that the distance from the drain hole to
the ground is 250 mm or more.

 CAUTION

Do not touch the suction port, bottom surface,or aluminum fin of the outdoor unit.Failure to do so

may cause an injury.

reverse order of the removal.

Figure showing the Installation of Outdoor Unit.

1

RAC-18_25_35_50WPB_IM_English

Air outlet

When“ heating”operation  is performed, 

cool  air  blows and when “cooling” or 

“dehumidifying” operation is performed, 

warm air blows.

Drain hose

Drains the dehumidified water from the indoor unit to the

outdoor during “cooling” or “dehumidifying” operation.

Piping and Wiring
Air inlets (Rear and left sides)

About the outdoor unit:

When “Stop” is selected during operation

of the indoor unit, the fan of the outdoor

unit  continues  turning  for  10  to  60

seconds to cool the electric parts down.

In  heating  operation,  condensate  or

water due to defrosting will flow.

Do not cover the drain port of the outdoor

unit because such water may freeze in

the chilly area.

When  the  outdoor  unit  is  hung  on  the

ceiling,  install  the  bush  and  drain  pipe

on the drain port and drain water.

OUTDOOR UNIT

MODEL

EN

1

RAC-50WXB

RAC-35WXB

RAC-25WXB

RAC-50FXB

RAC-35FXB

RAC-25FXB

Pull downward

Please face this side (suction 
side) of the unit to the wall.

Please face this side (suction 
side) of the unit to the wall.

Please remove side cover 
when connecting the piping 
and connecting cord.

Please remove side cover 
when connecting the piping 
and connecting cord.

RAC-50WXB/RAC-50FXB

RAC-25WXB/RAC-35WXB
RAC-25FXB/RAC-35FXB

1

1

above

100mm

above

100mm

 DRAIN PIPE

DRAIN HOLE

BASE

Outer diameter :
16 mm or more

 

BUSH

Push

Push

DRAIN HOLE

 DRAIN PIPE

DRAIN HOLE

BASE

2 BUSH

Outer diameter

16 mm or more

RAC-50WXB/RAC-50FXB

RAC-25WXB/RAC-35WXB
RAC-25FXB/RAC-35FXB

MODEL

WIDTH (mm)  HEIGHT (mm)  DEPTH (mm)

750

548

288

736

350

RAC-25/35WXB,RAC-25/35FXB

RAC-50WXB,RAC-50FXB

800

Names of Outdoor Components

No.

Item

Qty

Drain Pipe

Drain Pipe

750

500

1

1

1

1

2

RAC-25WXB/RAC-25FXB
RAC-35WXB/RAC-35FXB

RAC-50WXB/RAC-50FXB

Dimension of Mounting

Stand of the Outdoor unit

(unit : mm)

330

310

(10)

10

35

50

12

125

Mounting Stand

Mounting Stand

Bush

Bush

12

375

350

543.5

800

395

(50WXB,50FXB)

(25WXB,25FXB,35WXB,35FXB)

(25WXB,25FXB,35WXB,35FXB)

give clearance as wide as possible

A

B

above 100mm

above 300mm

above 300mm

above 700mm

C

above 50mm

above 150mm

 

RAC-25/35WXB

RAC-50WXB

above 200mm

 B

above 200mm

above

200mm

 B

 C

A

RAC-25/35WXB

RAC-50FXB

RAC-25/35FXB

Maximum pipe length 20m

Maximum pipe length 30m

Minimum pipe length 3m

(50FXB

50WXB)

(25/35FXB

25/35WXB)

RAC-25/35WXB
RAC-25/35FXB

RAC-50WXB
RAC-50FXB

s

The refrigerating machine oil is
easily affected by moisture. Use
caution to prevent water from
entering the cycle.

s

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

s

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.
          Inner diameter 16mm

Please use insulated drain

 hose for the indoor piping 

(commercial product)

give clearance as wide 
as possible

 C

200mm

above 

For outdoor unit installation,allow  
at least 2 sides of space around  
the unit to ensure ventilation flue. 

The clearances of the
unit from top, left, right
and front are specified
in figure below. At least
three of the above sides
must be open air.

A

give clearance as wide 
as possible

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