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Toshiba 1110651160 (EN)

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2

Indoor Unit Fixing

 For detaching the indoor unit from the 

installation plate, pull the indoor unit 

toward you while pushing its bottom 

up at the specifi ed parts.

1. Pass the pipe through the hole in the wall and hook the indoor unit on the 

installation plate at the upper hook.

. Swing the indoor unit to right and left to confi rm that it is fi rmly hooked up 

on the installation plate.

3. While pressing the indoor unit onto the wall, hook it at the lower part on 

the installation plate. Pull the indoor unit toward you to confi rm that it is 

fi rmly hooked up on the installation plate.

Drainage

1. Run the drain hose sloped downwards.

This air conditioner has the structure designed 

to drain water collected from dew, which forms 

on the back of the indoor unit, to the drain pan. 

Therefore, do not store the power cord and 

other parts at a height above the drain guide.

Hook here.

Hook

Press 

(unhook)

Push

Push

Do not rise the

drain hose.

Do not form the drain hose 

into a wavy shape.

50 mm

or more

Do not put the drain hose 

end into water.

Do not put the drain hose 

end in the drainage ditch.

Shield pipe

Drain hose

Extension drain hose

Inside the room

Wall

Drain

guide

Space for pipes

NOTE

If the pipe is bent incorrectly, the indoor unit may unstably be set on the wall.

After passing the connecting pipe through the pipe hole, connect the 

connecting pipes to the auxiliary pipes and wrap the facing tape around them.

CAUTION

 Bind the auxiliary pipes (two) and connecting cable with facing tape 

tightly. In case of leftward piping and rear-leftward piping, bind the 

auxiliary pipes (two) only with facing tape.

 Carefully arrange pipes so that any pipe does not stick out of the rear 

plate of the indoor unit.

 Carefully connect the auxiliary pipes and connecting pipes to one 

another and cut off the insulating tape wound on the connecting pipe to 

avoid double-taping at the joint; moreover, seal the joint with the vinyl 

tape, etc.

 Since dewing results in a machine trouble, make sure to insulate both 

connecting pipes. (Use polyethylene foam as insulating material.)

 When bending a pipe, carefully do it, not to crush it.

Auxiliary pipes

Indoor unit

Connecting cable

Installation plate

. Put water in the drain pan and make sure that the water is drained out of 

doors.

3. When connecting extension drain hose, insulate the connecting part of 

extension drain hose with shield pipe.

NOTE

 The hole should be made at a slight downward slant on the outdoor side.

CAUTION

Arrange the drain pipe for proper drainage from the unit.

Improper drainage can result in dew-dropping.

1

  Installation plate

Information

The lower part of indoor unit may fl oat, 

due to the condition of piping and you 

cannot fi x it to the installation plate. In 

that case, use the 

%

 screws provided 

to fi x the unit and the installation plate. 

%

 Screw

%

 Screw

OUTDOOR UNIT

Installation Place

 A place which provides enough spaces around the outdoor unit as shown 

in the diagram.

 A place which can bear the weight of the outdoor unit and does not allow 

an increase in noise level and vibration.

 A place where the operation noise and discharged air do not disturb your 

neighbors.

 A place which is not exposed to a strong wind.

 A place free of a leakage of combustible gases.

 A place which does not block a passage.

 When the outdoor unit is to be installed in an elevated position, be sure to 

secure its feet.

 An allowable length of the connecting pipe is up to 0 m (18 class) or 5 m 

(4 class).

 An allowable height level is up to 8 m (18 class) or 10 m (4 class).

 A place where the drain water does not cause any problems.

CAUTION

1. Install the outdoor unit in a location where there are no obstructions 

near its air intake or air outlet.

. When the outdoor unit is installed in a place that is always exposed to 

strong winds like on the coast or on a high story of a building, secure 

the normal fan operation using a duct or a wind shield.

3. Especially in windy areas, install the unit to prevent the admission of 

wind.

4. Installation in the following places may result in trouble. 

  Do not install the unit in such places.

 

 A place full of machine oil.

 

 A saline-place such as the coast.

 

 A place full of sulfi de gas.

 

 A place where high-frequency 

  waves are likely to be generated, 

    such as from audio equipment, 

  welders, and medical equipment.

Strong

wind

 Do not use the supplied drain nipple for draining water. Drain the water from 

all the drain holes directly.

 To protect the outdoor unit from snow accumulation, install a holding frame, 

and attach a snow protection hood and plate.

*  Do not use a double-stacked design.

Precautions about Installation in Regions 

with Snowfall and Cold Temperatures

Snow protection plate

Snow protection hood

At least 50 cm

Snow accumulation line
Holding frame

Front

Anchor bolts

Install at least 50 cm

above the snow

accumulation line.

Summary of Contents for 24S Series

Page 1: ...1 Toshiba 1110651160 COVER_F ENGLISH Indoor unit RAS 18 24SK Series Outdoor unit RAS 18 24S Series AIR CONDITIONER SPLIT TYPE INSTALLATION MANUAL 1110651160 ...

Page 2: ...tion Plate 3 nWiring Connection 4 nPiping and Drain Hose Installation 4 nIndoor Unit Fixing 5 nDrainage 5 EN OUTDOOR UNIT 5 nInstallation Place 5 nPrecautions about Installation in Regions with Snowfall and Cold Temperatures 5 nRefrigerant Piping Connection 6 nEvacuating 6 nWiring Connection 6 nElectrical Work 6 OTHERS 7 nGas Leak Test 7 nRemote Control A B Selection 7 nTest Operation 8 nAuto Rest...

Page 3: ...WAY MORE THAN M FROM HEAT SOURCES SUCH AS RADIATORS HEATERS FURNACE STOVES ETC WHEN MOVING THE AIR CONDITIONER FOR INSTALLING IT IN ANOTHER PLACE AGAIN BE VERY CAREFUL NOT TO GET THE SPECIFIED REFRIGERANT R WITH ANY OTHER GASEOUS BODY INTO THE REFRIGERATION CYCLE IF AIR OR ANY OTHER GAS IS MIXED IN THE REFRIGERANT THE GAS PRESSURE IN THE REFRIGERATION CYCLE BECOMES ABNORMALLY HIGH AND IT RESULTING...

Page 4: ...er operation Do not allow the drain hose to get slack Make sure to run the drain hose sloped downward Cut the piping hole sloped slightly The auxiliary piping can be connected to the left rear left rear right right bottom right or bottom left Right Rear right Left Bottom right Rear left Bottom left Insulate the refrigerant pipes separately with insulation not together 8 mm thick heat resisting pol...

Page 5: ...nything on the top of the indoor unit The center of the pipe hole is above the arrow Pipe hole In case of block brick concrete or similar type walls make 5 mm dia holes in the wall Insert clip anchors for appropriate mounting screws 7 Indoor unit Side view Top view Indoor unit Remote control Remote control Reception range R e c e p t i o n r a n g e Installation plate Keep horizontal direction 5 m...

Page 6: ... the connecting pipe so that it is laid within 43 mm above the wall surface If the connecting pipe is laid exceeding 43 mm above the wall surface the indoor unit may unstably be set on the wall When bending the connecting pipe make sure to use a spring bender so as not to crush the pipe Bend the connecting pipe within a radius of 30 mm To connect the pipe after installation of the unit figure Inse...

Page 7: ...ion drain hose insulate the connecting part of extension drain hose with shield pipe NOTE The hole should be made at a slight downward slant on the outdoor side CAUTION Arrange the drain pipe for proper drainage from the unit Improper drainage can result in dew dropping 1 Installation plate Information The lower part of indoor unit may float due to the condition of piping and you cannot fix it to t...

Page 8: ...handle of the gauge manifold valve 6 Open fully the valve stem of the packed valves both gas and liquid sides 7 Remove the charging hose from the service port 8 Securely tighten the caps on the packed valves Packed valve at liquid side Vacuum pump Handle Lo 101 kPa 76 cmHg Packed valve handling precautions Open the valve stem until it touches the stopper Once it is in contact with the stopper refr...

Page 9: ... 3 2 Terminal block Cord clamp Earth line Terminal screw Cord clamp Screw Power supply cord Connecting cable For 18 Class For 24 Class Earth line Stripping length of the connecting cable CAUTION Wrong wiring connection may cause some electrical parts burn out Be sure to comply with local rule on running the wire from indoor unit to outdoor unit size of wire and wiring method etc Every wire must be...

Page 10: ...3 beep sound but OPERATION lamp does not blink In case of ON timer or OFF timer are set AUTO RESTART OPERATION does not activate This product is designed so that after a power failure it can restart automatically in the same operating mode as before the power failure To switch the TEST RUN COOL mode press RESET button for 10 seconds The beeper will make a short beep RESET Hi POWER FILTER PAP TIMER...

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