Toshiba Rav-sm2242dt-e User manual

Indoor Unit

Model name:

Concealed Duct High Static Pressure Type

RAV-SM2242DT-E

RAV-SM2802DT-E

AIR CONDITIONER (SPLIT TYPE)

Owner’s Manual

English

For commercial use

–1–

Original instruction

Contents

1 Precautions for safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

2 Part names . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

3 Wired remote controller. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

4 Correct usage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

5 Timer operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

6 Power saving mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

7 Advanced settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

8 Energy saving recommendations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

9 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

10 Air conditioner operations and performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

11 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

12 Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

13 Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

ADOPTION OF NEW REFRIGERANT

This Air Conditioner uses R410A an environmentally friendly refrigerant.

This appliance is not intended for use by person (including children) with reduced physical, sensory or mental

capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction

concerning use of the appliance by a person responsible for their safety.

Thank you for purchasing this Toshiba air conditioner.

Please read carefully through these instructions that contain important information which complies with the

“Machinery” Directive (Directive 2006/42/EC), and ensure that you understand them.

After reading these instructions, be sure to keep them in a safe place together with the Owner’s Manual and

Installation Manual supplied with your product.

Generic Denomination: Air Conditioner

Definition of Qualified Installer or Qualified Service Person

The air conditioner mustbe installed, maintained, repaired and removed by a qualified installer or qualified service

person. When anyof these jobs is to be done, ask aqualified installer or qualified service person todo them for you.

A qualified installer or qualified service person is an agent who has the qualifications and knowledge described in

the table below.

Agent Qualifications and knowledge which the agent must have

Qualified installer

• The qualifiedinstalleris a person who installs, maintains, relocates and removes the air conditioners

made by Toshiba Carrier Corporation. He or she has been trained to install, maintain, relocate and

removethe air conditioners madeby Toshiba Carrier Corporation or, alternatively, he orshe has been

instructed in such operations by an individual or individuals who have been trained and is thus

thoroughly acquainted with the knowledge related to these operations.

• The qualified installer who is allowed to do the electrical work involved in installation, relocation and

removal has the qualifications pertaining to this electrical work as stipulated by the local laws and

regulations, and he or she is a person who has been trained in matters relating to electrical work on

the air conditioners made by Toshiba Carrier Corporation or, alternatively, he or she has been

instructed in such matters by an individual or individuals who have been trained and is thus thoroughly

acquainted with the knowledge related to this work.

• The qualified installer who is allowed to do the refrigerant handling and piping work involved in

installation, relocation and removal has the qualifications pertaining to this refrigerant handling and

piping work as stipulated by the local laws and regulations, and he or she is a person who has been

trained in matters relating to refrigerant handling and piping work on the air conditioners made by

Toshiba Carrier Corporation or, alternatively, he or she has been instructed in such matters by an

individual or individuals who have been trained and is thus thoroughly acquainted with the knowledge

related to this work.

• The qualified installerwho is allowed to work at heightshasbeentrained in mattersrelating toworking

at heights with the air conditioners made by Toshiba Carrier Corporation or, alternatively, he or she

has been instructed in such matters by an individual or individuals who have been trained and is thus

thoroughly acquainted with the knowledge related to this work.

Qualified service

person

• The qualified service person is a person who installs, repairs, maintains, relocates and removes the

air conditioners made by Toshiba Carrier Corporation. He or she has been trained to install, repair,

maintain, relocate and remove the air conditioners made by Toshiba Carrier Corporation or,

alternatively,heorshehasbeeninstructedinsuchoperationsbyanindividualorindividualswhohave

been trained and is thus thoroughly acquainted with the knowledge related to these operations.

• The qualified service person who is allowed to do the electrical work involved in installation, repair,

relocationandremovalhasthequalificationspertainingtothiselectricalworkasstipulatedbythelocal

laws and regulations, and he or she is a person who has been trainedin matters relating to electrical

work onthe airconditioners made byToshiba Carrier Corporationor,alternatively,heor she hasbeen

instructed in such matters by an individual or individuals who have been trained and is thus thoroughly

acquainted with the knowledge related to this work.

• The qualifiedservice personwho is allowed todo the refrigerant handling and piping workinvolvedin

installation, repair, relocation and removal has the qualifications pertaining to this refrigerant handling

and piping work as stipulated by the local laws and regulations, and he or she is a person who has

been trained in matters relating to refrigerant handling and piping work on the air conditioners made

by Toshiba Carrier Corporation or, alternatively, he or she has beeninstructed in such matters by an

individual or individuals who have been trained and is thus thoroughly acquainted with the knowledge

related to this work.

• The qualified service person who is allowed to work at heights has been trained in matters relating to

working at heights with the air conditioners made by Toshiba Carrier Corporation or, alternatively, he

or she has been instructed in such matters by an individual or individuals who have been trained and

is thus thoroughly acquainted with the knowledge related to this work.

1-EN 2-EN

–2–

EN

Warning indications on the air conditioner unit

Warning indication Description

WARNING

ELECTRICAL SHOCK HAZARD

Disconnect all remote electric power supplies before servicing.

WARNING

Moving parts.

Do not operate unit with grille removed.

Stop the unit before the servicing.

CAUTION

High temperature parts.

You might get burned when removing this panel.

CAUTION

Do not touch the aluminum fins of the unit.

Doing so may result in injury.

CAUTION

BURST HAZARD

Opentheservicevalvesbeforetheoperation,otherwisetheremightbe

the burst.

WARNING

ELECTRICAL SHOCK HAZARD

Disconnect all remote

electric power supplies

before servicing.

WARNING

Moving parts.

Do not operate unit with grille

removed.

Stop the unit before the servicing.

CAUTION

High temperature parts.

You might get burned

when removing this panel.

CAUTION

Do not touch the aluminum

fins of the unit.

Doing so may result in injury.

CAUTION

BURST HAZARD

Open the service valves before

the operation, otherwise there

might be the burst.

1Precautions for safety

The manufacturer shall not assume any liability for the damage caused by not observing the description of this

manual.

WARNING

General

• Carefully read Owner’s Manual before starting the air conditioner. There are many important things to keep inmind for daily

operation.

• Do not use any refrigerant different from the one specified for complement or replacement.

Otherwise, abnormally high pressure may be generated in therefrigeration cycle,which may resultin a failure or explosion

of the product or an injury to your body.

Transportation and storage

• When transporting the air conditioner, wear shoes with additional protective toe caps.

• When transporting the air conditioner, do not take hold of the bands around the packing carton. You may injure yourself if

the bands should break.

• When stacking the packing cartons for storage or transportation, heed the precautions written on the packing cartons.

Failure to heed the precautions may cause the stack to collapse.

Installation

• Only a qualified installer(*1) or qualified service person(*1) is allowed to carry out the electrical work of the air conditioner.

Under no circumstances must this work be done by an unqualified individual since failure tocarryout theworkproperly may

result in electric shocks and/or electrical leaks.

• After the installation work has been completed, have the installer explain about the circuit breaker positions. In the event

that trouble has occurred in the air conditioner, set the circuit breaker to the OFF position, and contact a service person.

• If you install the unit in a small room, take appropriate measures to prevent the refrigerant from exceeding the limit

concentration even if it leaks. Consult the dealer from whom you purchased the air conditioner when you implement the

measures. Accumulation of highly concentrated refrigerant may cause an oxygen deficiency accident.

• Do not install the air conditioner in a location that may be subject to a risk of expire to a combustible gas. If a combustible

gas leaks and becomes concentrated around the unit, a fire may occur.

Operation

• Before opening the intake grille of the indoor unit or service panel of the outdoor unit, set the circuit breaker to the OFF

position. Failure to set the circuit breaker tothe OFF position may resultin electric shocks through contact with the interior

parts. Only a qualified installer(*1) or qualified service person(*1) is allowed to remove the intake grille of the indoor unit or

service panel of the outdoor unit and do the work required.

• Inside the air conditioner are high-voltage areas and rotating parts. Due to the danger of electric shocks or of your fingers

or physical objects becoming trapped in the rotating parts, do not remove the intake grille of the indoor unit or service panel

of the outdoor unit. When work involving the removal of these parts is required, contact a qualified installer or a qualified

service person.

• Do not move or repair any unit by yourself. Since there is high voltage inside the unit, you may get electric shock when

removing the cover and main unit.

• Use of a stand more than 50 cm high to clean the filter of the indoor unit or to carry out other such jobs constitutes working

at heights. Due to the danger of falling off the stand and injuring yourself while working at heights, this kind of work should

not be done by unqualified individuals. When this kind of work must be carried out, do not do it yourself but ask a qualified

installer or a qualified service person to do it for you.

• Do not touch the aluminum fin of the outdoor unit. You may injure yourself if you do so. If the fin must be touched, do not

touch it yourself but contact a qualified installer or a qualified service person.

• Do not climb onto or place objects on top of the outdoor unit. You may fall or the objects may fall off of the outdoor unit and

result in injury.

• Do not place any combustion appliance in a place where it is directly exposed to the wind of air conditioner, otherwise it may

cause imperfect combustion.

• When the air conditioner is operated witha combustion appliance inthe sameplace, be careful of ventilationto let freshair

enter the room. Poor ventilation causes oxygen shortage.

• When the air conditioner is used in a closed room, be careful of sufficient ventilation of the room. Poor ventilation causes

oxygen shortage.

3-EN 4-EN

–3–

Repairs

• When you have noticed that some kind of trouble (such as when an error display has appeared, there is a smell of burning,

abnormal sounds are heard, the air conditioner fails to cool or heat or water is leaking) has occurred in the air conditioner,

do not touch the air conditioner yourself but set the circuit breaker to the OFF position, and contact a qualified service

person. Take steps to ensure that the power will not be turned on (by marking “out of service” near the circuit breaker, for

instance) until qualified service person arrives. Continuing to use the air conditioner in the trouble status may cause

mechanical problems to escalate or result in electric shocks, etc.

• If you have discoveredthat thefan grille is damaged, do not approach the outdoor unit but setthe circuitbreaker tothe OFF

position, and contact a qualified service person to have the repairs done. Do not set the circuit breaker to the ON position

until the repairs are completed.

• If you have discovered that there is a danger of the indoor unit’s falling, do not approach the indoor unit but set the circuit

breaker to the OFF position, and contact a qualified installer or a qualified service person to refit the unit. Do not set the

circuit breaker to the ON position until the unit has been refitted.

• If you have discovered that there is a danger of the outdoor unit’s toppling over, do not approach the outdoor unit but set

the circuit breaker to the OFF position, and contact a qualified installer or a qualified service person to have the

improvements or refitting done. Do not set the circuit breaker to the ON position until the improvements or refitting is

completed.

Relocation

• When the air conditioner is to be relocated, do not relocate it yourself but contact a qualified installer or a qualified service

person. Failure to relocate the air conditioner properly may result in electric shocks and/or a fire.

(*1) Refer to the “Definition of Qualified Installer or Qualified Service Person.”

CAUTION

To disconnect the appliance form the main supply

• This appliance must be connected to the mains by means of a switch with a contact separation of at least 3 mm.

•The installation fuse 25A must be used for the power supply line of this air conditioner.

Cautions about installation (Be sure to confirm the following cautions.)

• Certainly lay the drain hose for perfect draining.

Bad drainage may cause flooding in the house and getting furniture wet.

• Make sure to connect the air conditioner to an exclusive power supply of the rated voltage,

otherwise the unit may break down or cause a fire.

Cautions about operation

• Do not use this air conditioner for special purpose such as preserving food, precision

instruments, art objects, breeding animals, car, vessel, etc.

• Do not touch any switches with wet finger, otherwise you may get an electric shock.

• If the air conditioner will not be used for a considerably long time, turn off the main switch or

the circuit breaker, for safety.

• To make the air conditioner operate in its original performance, operate it within the range of

the operating temperature specified in the instructions.

Otherwise it may cause a malfunction, or water leak from the unit.

• Prevent any liquid from falling into the remote controller.

Do not spill juice, water or any kind of liquid.

Information on the transportation, handling and storage of the

carton

Examples of indication on the carton

Symbol Description Symbol Description

Keep dry Do not drop

Fragile Do not lay down

Stacking height

(12 cartons can be stacked in this

case) Do not walk on this carton

This side up Do not step

Handle with care

Other cautions Description

CAUTION

Injury possibility.

Don’t handle with packing band, or may get injured in case of broken band.

Stacking notice.

In case that cardboard boxes protrude out of pallet when stacking.

Lay a 10 mm thick plywood over the pallet.

11 cartons

5-EN 6-EN

–4–

EN

2Part names

Indoor unit

Outdoor unit

Air discharge

Connect a discharge duct.

SET

TIME

TIMER SET

TEST

FILTER

RESET

CL

FAN

SAVE

SWING/FIX

VENT

MODE

UNIT LOUVER

Remote controller

Separate sold part

Air intake

Connect a suction duct.

Drain pan

Electrical control box

The earth screw is provided in the

electrical control box.

Air intake

(Side and rear)

Front panel

There is an earth screw, valves,

and electric parts inside.

Air discharge

Pipe cover

Wire connection holes

Refrigerant pipe connection

holes

Mounting leg

3Wired remote controller

This remote controller can control the operation of up to 8 indoor units.

Display section

1Operation mode

The selected operation mode is displayed.

2Error display

Displayed while the protective device works or a

error occurs.

3SETTING display

Displayed during setup of the timer or other

settings.

4TEST run display

Displayed during a test run.

5Timer display

When an error occurs, error code is displayed.

6Timer mode display

The selected timer mode is displayed.

7Filter display

Reminder to clean the air filter.

8Fan speed display

Fan speed is not adjustable.

It is fixed to High.

9Set temperature display

The selected set temperature is displayed.

10

Power saving mode display

Limits compressor speed (capacity) to save

energy.

In the display illustration below all the icons are shown. When the unit is in

operation, only relevant icons will be displayed.

• When turning on the leak breaker at the first time, flashes on the

display part of the remote controller.

• While this icon is flashing, the model is being automatically confirmed.

Wait till icon has disappeared to use the remote controller.

SET

TIME

TIMER SET

TEST

FILTER

RESET

TEMP.

CL

FAN

SAVE

SWING/FIX

VENT

MODE

ON / OFF

UNIT LOUVER

Display

section

Operation

section

1

8

6

4

2

3

5

7

13

15 14

9

12 11 10

(HIGH)

7-EN 8-EN

–5–

11

UNIT No. display

Displays the number of the indoor unit selected.

Also displays error code of indoor and outdoor

units.

12

Central control display

Displayed when the air conditioner is used under

the central control in combination with a central

control remote controller.

In case the remote controller is disabled by the

central control system, flashes.

The button operation is not accepted.

Even when you push ON/OFF, MODE, or TEMP.

button, and the button operation is not accepted.

(Settings made by the remote controller vary with

the central control mode. For details, refer to the

Owner’s Manual of the central control remote

controller.)

13

Remote controller sensor display

Displayedwhilethesensoroftheremotecontroller

is used.

14

Pre-heat display

Displayed when the heating mode is energized or

defrost cycle is initiated.

While this icon is displayed, the indoor fan stops.

15

No function display

Displayed when the function requested is not

available on that model.

1

6

4

2

3

5

7

13

15 14

9

12 11 10

8

Operation section

Push each button to select a desired operation.

•The control saves commands in memory and after the initial setting, there is no need for any additional

settings unless changes are desired. The air conditioner can be operated by pushing the button.

1

button (Temperature set button)

Adjusts the set point.

Select the desired set point by pushing TEMP.

or TEMP. .

2button (Timer set button)

Use to setup the timer.

3button (Filter reset button)

Resets “ ” icon after cleaning filter.

4button (Test button)

Use only for service.

(During normal operation, do not use this button.)

5button

When the button is pushed, the operation starts,

and it stops by pushing the button again.

When the operation has stopped, the operation

lamp and all the displays disappear.

6Operation lamp

Green light illuminates when unit is on.

Although it flashes when operating the protection

device or an error occurs.

7button (Operation mode button)

Selects desired operation mode.

8button (Fan speed button)

Fan speed is not adjustable.

It is fixed to High.

9button (Ventilation button)

Usewhen apowerventilationkit (locally procured)

is connected.

If “ ” is displayed on the remote controller when

this button is pushed no vent kit connected.

10

button (Power save operation)

Use to initiate power saving mode.

11

button (Unit / Louver select button)

Selects a unit number (left) and louver number

(right).

UNIT:

Selects an indoor unit when multiple indoor units

are controlled with one remote controller.

LOUVER:

No Function.

12

button (Swing / Louver direction

button)

No Function.

OPTION :

Remote controller sensor

Usually the temperature sensor of the indoor unit

senses the temperature. The temperature on the

surrounding of the remote controller can also be

sensed.

For details, contact the dealer from which you have

purchased the air conditioner.

8

6

4

3

2

5

7

10

12

1

9

11

9-EN 10-EN

–6–

EN

4Correct usage

When you use the air conditioner for the first time or when you change the setting, follow the steps below.Settings

are saved in memory and are displayed anytime the unit is turned on by pushing the button.

Preparation

Turn on the main power switch and/or the leakage breaker.

• When the power supply is turned on, a partition line is displayed on the display part of the remote controller.

• After the power supply is turned on, the remote controller does not accept an operation for approx. 1 minute, but

it is not a failure.

REQUIREMENT

• While using the air conditioner, operate it only with button without turning off the main power switch and

the leakage breaker.

• When you re-power the air conditioner after it has not been used for a long period, turn on the leakage breaker at

least 12 hours before starting the air conditioner. (This is required to turn on the compressor case heater for warming

in order to prevent overload on the compressor when activating the outdoor unit.)

Start

1Push button.

The operation lamp illuminates, and the operation

starts.

2Select an operation mode with the “ ”

button.

One push of the button, and the display changes

in the order shown below.

3Select a desired set point by pushing the

“TEMP. ” or “TEMP. ” button.

Stop

Push button.

The operation lamp goes off, and the operation stops.

NOTE

Auto changeover

• When in Auto Mode, the unit selects the operating

mode (cooling, heating or fan only) based on the user

selected set point temperature.

• If the Auto mode is uncomfortable, you can select the

desired conditions manually.

Cooling

• If there is a demand for cooling, unit will start

approximately 1 minute after mode is selected.

Heating

• If there is a demand for heating, unit will start

approximately 3 to 5 minutes after the mode is

selected.

• After the heating operation has stopped, fan may

continue to run for approx. 30 seconds.

• When the room temperature reaches the set

temperature,theoutdoorunit stopsandtheindoorunit

will carry on fan operation.

During defrostoperation, thefan stops sothat cool air is

not discharged. (“ ” Pre-heat is displayed.)

When restarting the operation after stop

• When attempting to restart the unit immediately after

it was stopped, the unit can not start for approx.

3 minutes this is to protect the compressor.

SET

TIME

TIMER SET

TEST

FILTER

RESET

TEMP.

CL

FAN

SAVE

SWING/FIX

VENT

MODE

ON / OFF

UNIT LOUVER

1

2

3

Auto Heat FanCool

8 °C operation (For object pre-heating)

(Available for Super Digital Inverter outdoor units)

The air conditioner can control the heating temperature to about 8 °C in the heating mode.

The 8 °C heating operation requires settings with the wired remote controller. Ask the installer or dealer

for the settings according to the installation manual of the indoor unit.

Start

1. Set the displayed temperature to 18 °C in the heating mode by pushing TEMP. button.

2. Set the displayed temperature to 8 °C by pushing TEMP. button for at least four seconds.

Stop

1. Set the displayed temperature to 18 °C by pushing TEMP. button.

• The air conditioner returns to the normal HEAT mode. Select a desired temperature and operation mode.

NOTE

• The discharged air temperature is lower than that in the normal heating operation.

• The room temperature may not be heated evenly depending on the remote controller installation location.

• The room temperature may not reach 8°C depending on the room size or the installation conditions.

The 8°C heating operation is cancelled in the following cases.

• When operation is stopped with button.

• When another operation mode is selected with button.

• When temperature setting or operation mode is changed or operation is started / stopped by the wireless remote

controller or the central control remote controller.

• If one or more models other than the 4-way air discharge cassette type (4 series), slim duct, Concealed Duct High

Static Pressure are connected in the same control group, the 8°C heating operation is not available.

• When you use this operation mode, observe proper operating hours and we recommend that you ask service staff

for periodic maintenance of the air conditioner.

11-EN 12-EN

–7–

5Timer operation

•

Three timer modes are available: (Setting of up to 168 hours is enabled.)

Set

1Push button.

The timer mode changes with every push of the

button.

• and timer display flashes.

2Push to select “set time”.

• With every push of button, the set time

increases by 0.5 hr (30 minutes).

When setting a time more than 24 hours for

timer operation, timer can be set in increments

of 1 hr.

The maximum set time is 168hr (7 days).

The remote control displays the set time with

time (between 0.5 and 23.5 hours) (*1) or

number of days and time (24 hours or more) (*2)

as shown below.

• With every push of button, the set time

decreases by 0.5 hr (30 minutes) (0.5 -

23.5 hours) or 1 hr (24 - 168 hours).

Example of remote control display

• 23.5 hours (*1)

•34hours(*

2)

3Push button.

icon disappears and time display goes on,

and or icon flashes.

(When On timer is activated, time and On timer

are icons and other icons disappear.)

4Cancel timer operation

Push button.

Timer icon disappears.

NOTE

• When the operation stops after the timer reached the

preset time, the Repeat Off timer resumes the

operation by pushing button and stops the

operation after the time of the timer has reached the

set time.

• When you push while the Off timer function of

the air conditioner is active, the indication of the timer

function disappears and then appears again after

about 5 seconds.

This is due to normal processing of the remote

controller.

Off timer :The unit stops when the set time is reached.

Repeat Off timer :The unit stops daily when the set time is reached.

On timer :The unit starts when the set time is reached.

1

32

4

shows 1 day (24 hours).

shows 10 hours. (Total 34 hours)

(Off timer) (On timer)(Repeat Off timer)

No display

Off Off On

Number of days Time

6Power saving mode

The power saving mode saves energy by limiting the maximum current which will effect heating or cooling capacity

that the unit can generate.

Push button during operation.

• The air conditioner enters power saving mode.

•appears on the display.

Power saving mode will stay in effect until it is cancelled.

To cancel the power saving mode, push button again.

•disappears.

NOTE

• When other electric appliances are used at the same time, to avoid triggering the circuit breaker, power saving mode

is recommended. Of course you can use power saving mode to save energy as well.

• Power saving mode consumes less energy, but may not heat / cool the room as much as normal mode. (The

maximum current is limited to approximately 75 % (factory default) of the normal mode.)

• To adjust the power-save settings, see “Power saving mode” in Advanced settings.

• Even when operation start / stop, operation mode change, or power reset is performed during the power saving mode,

the power saving mode is retained until the next operation.

13-EN 14-EN

–8–

EN

7Advanced settings

Power saving mode

1Push button for at least four seconds

when the air conditioner is not working.

• , symbol, and numbers flash.

2Push (left side of the button) to select

an indoor unit to be set.

• Each time you push the button, UNIT No.

change as follows:

The fan of the selected unit runs.

3Push TIME buttons, to adjust the

power saving mode setting.

• Each push of the button changes the power

level by 1 % within the range from 100 % to 50

%.

• The factory default is 75 %.

4Push button.

5Push button to complete the setting.

4

3

1

52

UNITNo.

1-1 UNIT No.

1-2 UNITNo.

1-3

UNITNo.

1-4

Setting of power level in

power saving mode

8Energy saving recommendations

Select a comfortable set point and minimize adjusting it

• Clean the filter when ever the filter display is illuminated on remote

controller.

• Keep doors and windows closed and open them only when necessary.

• Use drapes, curtains, or shades to keep direct sun light from heating the

room on very hot days.

• Do not obstruct the return air grille.

Adjust the air flow direction for even air distribution in the room.

Checks before operating

• Check whether the earth wires are properly connected.

• Check whether the air filters are installed.

• Turn on the leakage breaker at least 12 hours before operating.

Protective device

• The protective device stops operation when the air conditioner is

overloaded.

• When the protective device is activated, the current operation stops and the operation lamp and on the

remote controller flash.

When the protective device is activated

• When the protective device has been activated and stopped operation, turn off the leakage breaker immediately,

and ask the installer to find the cause.

If the air conditioner is operated without fixing the problem, the air conditioner may malfunction.

• Check whether the air filters are installed.

If the air filters are not installed, the air heat exchanger may be clogged with dust, which may result in water

leakage.

For cooling

• When the air intake and/or discharge of the outdoor unit are blocked.

• When the air discharge of the outdoor unit is continuously exposed to strong wind.

For heating

• When the air filters are clogged with too much dust or dirt.

• When the suction port and/or discharge port of the indoor unit are blocked.

Do not turn off the leakage breaker

• Do not turn off the leakage breaker during a test run of the air conditioner. Use the ON/OFF button on the air

conditioner instead to control the power.

Please close

Clean, please.

15-EN 16-EN

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9Maintenance

WARNING

Cleaning the air filter and other parts of the air filter involves dangerous work in high places, so be sure to have a

qualified installer or qualified service person to do it.

Do not attempt it by yourself.

CAUTION

NOTE

For environmental conservation, it is strongly recommended that the indoor and outdoor units of the air conditioner in

use be cleaned and maintained regularly to ensure efficient operation of the air conditioner.

When the air conditioner is operated for a long time, periodic maintenance (once a year) is recommended.

Furthermore, regularly check the outdoor unit for rust and scratches, and remove them or apply rustproof treatment, if

necessary.

As a general rule, when an indoor unit is operated for 8 hours or more daily, clean the indoor unit and outdoor unit at

least once every 3 months. Ask a professional for this cleaning / maintenance work.

Such maintenance can extend the life of the product though it involves the owner’s expense.

Failure to clean the indoor and outdoor units regularly will result in poor performance, freezing, water leakage, and even

compressor failure.

▼Cleaning air filters

Clogged air filters will reduce the cooling and heating performance.

1. If “ ” is displayed on the remote controller, clean the air filters.

2. When the cleaning of air filters has been completed, push button.

“ ” disappears.

Cleaning remote controller

• Use a dry cloth to wipe the remote controller.

• Never use a damp cloth on the remote controller.

• Do not use a chemically-treated duster for wiping or leave such materials on the unit

for long.

It may damage or fade the surface of the unit.

• Do not use benzine, thinner, polishing powder, or similar solvents for cleaning.

These may cause the plastic surface to crack or deform.

Periodic check

Long-period use of the air conditioner may cause deterioration or failure of parts due

to heat, humidity, dust, and operating conditions, or may cause poor drainage of

dehumidified water.

▼Preparing for long Shut Down Period

1. Clean the filters and reposition them in unit.

2. Operate the unit in fan mode for 3 or 4 hours to dry all internal parts.

3. Turn the unit off and disconnect the main power supply.

4. Before unit is turned on again, make sure the circuit breaker has been turned on for at

least 12 hours.

▼Check points before operation

1. Check that the air filters are installed.

2. Check that the air discharge or intake is not blocked.

3. Turn on the main power switch or the circuit breaker for the main power supply to the

air conditioner.

(1)

(2)

▼Maintenance List

Part Unit Check (visual / auditory) Maintenance

Heat exchanger Indoor / outdoor Dust / dirt clogging, scratches Wash the heat exchanger when it is clogged.

Fan motor Indoor / outdoor Sound Take appropriate measures when abnormal

sound is generated.

Filter Indoor Dust / dirt, breakage • Wash the filter with water when it is

contaminated.

• Replace it when it is damaged.

Fan Indoor • Vibration, balance

• Dust / dirt, appearance • Replace the fan when vibration or balance is

terrible.

• Brush or wash the fan when it is contaminated.

Air intake /

discharge grilles Indoor / outdoor Dust / dirt, scratches Fix or replace them when they are deformed or

damaged.

Drain pan Indoor Dust / dirt clogging, drain

contamination Clean the drain pan and check the downward

slope for smooth drainage.

Ornamental panel,

louvers Indoor Dust / dirt, scratches Washthemwhentheyarecontaminatedorapply

repair coating.

Exterior Outdoor • Rust, peeling of insulator

• Peeling / lift of coat Apply repair coating.

17-EN 18-EN

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EN

10Air conditioner operations and performance

3 minutes protection function

3-minutes protection function prevents the air conditioner from starting for initial 3 minutes after the main power

switch / circuit breaker is turned on for re-starting the air conditioner.

Power failure

Power failure during operation will stop the unit completely.

• To restart the operation, push the ON/OFF button on the remote controller.

• Lightning or a wireless car telephone operating nearby may cause the unit to malfunction. Turn off the main

power switch or circuit breaker and then turn them on again. Push the ON/OFF button on the remote controller

to restart.

Heating characteristics

Preheating operation

The air conditioner will not deliver warm air immediately after it is turned on. Warm air will start to flow out after

approximately 5 minutes when the indoor heat exchanger warmed up.

Warm air control (In heating operation)

When the room temperature has reached the set temperature while the outdoor unit is stopping, the indoor unit

discharges wind with a very small air volume.

Defrosting operation

If the outdoor unit is frosted during the heating operation, defrosting starts automatically (for approximately 2 to 10

minutes) to maintain the heating capacity.

• The fans in both indoor and outdoor units will stop during the defrosting operation.

• During the defrosting operation, the defrosted water will be drained from the bottom plate of the outdoor unit.

Heating capacity

In the heating operation, the heat is absorbed from the outside and brought into the room. This way of heating is

called heat pump system. When the outside temperature is too low, it is recommended to use another heating

apparatus in combination with the air conditioner.

Attention to snowfall and freeze on the outdoor unit

• In snowy areas, the air intake and air discharge of the outdoor unit are often covered with snow or frozen up.

If snow or freeze on the outdoor unit is left as it is, it may cause machine failure or poor warming.

• In cold areas, pay attention to the drain hose so that it perfectly drains water without water remaining inside for

freeze prevention. If water freezes in the drain hose or inside the outdoor unit, it may cause machine failure or

poor warming.

Air conditioner operating conditions

For proper performance, operate the air conditioner under the following temperature conditions:

If air conditioner is used outside of the above conditions, safety protection may work.

Cooling operation

Outdoor temperature : –15 °C to 46 °C

Room temperature : 21 °C to 32 °C (Dry bulb temp.), 15 °C to 24 °C (Wet bulb temp.)

[CAUTION] Room relative humidity – less than 80 %. If the air conditioner operates in excess of

this figure, the surface of the air conditioner may cause dewing.

Heating operation Outdoor temperature : –20 °C to 15 °C (Wet bulb temp.)

Room temperature : 15 °C to 28 °C (Dry bulb temp.)

11Installation

Do not install the air conditioner in the following places

• Do not install the air conditioner in any place within 1 m from a TV, stereo, or radio set. If the unit is installed in

such place, noise transmitted from the air conditioner affects the operation of these appliances.

• Do notinstall the airconditioner neara highfrequency appliance(sewingmachine ormassagerfor businessuse,

etc.), otherwise the air conditioner may malfunction.

• Do not install the air conditioner in locations where iron or other metal dust is present. If iron or other metal dust

adheres to or collects on the interior of the air conditioner, it may spontaneously combust and start a fire.

• Do not install the air conditioner in a humid or oily place, or in a place where steam, soot, or corrosive gas is

generated.

• Do not install the air conditioner in a salty place such as seaside area.

• Do not install the air conditioner in a place where a great deal of machine oil is used.

• Do not install the air conditioner in a place where it is usually exposed to strong wind such as in seaside area.

• Do not install the air conditioner in a place where sulfurous gas generated such as in a spa.

• Do not install the air conditioner in a vessel or mobile crane.

• Do not install the air conditioner in an acidic or alkaline atmosphere (in a hot-spring area or near a chemicals

factory, or in a place subject to combustion emissions). Corrosion may be generated on the aluminum fin and

copper pipe of the heat exchanger.

• Do not install the air conditioner near an obstacle (air vent, lighting equipment, etc.) that disturbs discharge air.

(Turbulent airflow may reduce the performance or disable devices.)

• Do not usethe air conditioner forspecial purposes such as preservingfood, precision instruments, or artobjects,

or where breeding animals or growing plants are kept.

(This may degrade the quality of preserved materials.)

• Do not install the air conditioner over an object that must not get wet. (Condensation may drop from the indoor

unit at a humidity of 80% or more or when the drain port is clogged.)

• Do not install the air conditioner in a place where an organic solvent is used.

• Do not install the air conditioner near a door or window subject to humid outside air.

Condensation may form on the air conditioner.

• Do not install the air conditioner in a place where special spray is used frequently.

Be careful with noise or vibrations

• Do not install the air conditioner in a place where noise by outdoor unit or hot air from its air discharge annoys

your neighbors.

• Installtheair conditioneron asolidand stablefoundationsothat itpreventstransmissionof resonating,operation

noise and vibration.

• If one indoor unit is operating, some sound may be audible from other indoor units that are not operating.

19-EN 20-EN

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12Troubleshooting

CAUTION

If any of the following conditions occur, turn off the main power supply switch and immediately contact the dealer :

• Switch operation does not work properly.

• The main power fuse often blows out, or the circuit breaker is often activated.

• A foreign matter or water fall inside the air conditioner.

• When the air conditioner does not operate even after the cause of the protective device activation has been removed.

(The operation lamp and on the remote controller are flashing.)

• Any other unusual conditions are observed.

Before you ask for servicing or repairs, check the following points

▼Recheck

Inoperative

• The main power switch is turned off.

• The circuit breaker is activated to cut off power supply.

• The main power fuse has blown out.

Does not cool well or heat well

• The air intake and/or discharge of the outdoor unit is blocked.

• Doors or windows are opened.

• The set temperature is too high (In cooling) or low (In heating).

▼These are not failures.

Indoor unit or outdoor unit makes a strange noise.

• When the temperature suddenly changes, the indoor or outdoor unit occasionally makes a strange noise

because of expansion / contraction of parts or change of refrigerant flow.

• Air leaking noise is heard occasionally.

It is generated by the solenoid valve when it is actuated.

• A clattering sound is heard when the power is turned on.

It is generated by the outdoor unit during preparation for operation.

The room air is smelly or a bad odor comes from the air conditioner.

• Smells impregnated in the walls‚ carpets, furniture, clothing, or furs, come out.

Outdoor unit is frosted in heating operation.

Water drains from outdoor unit.

• The outdoor unit is sometimes frosted in heating operation.

In that case, the unit automatically performs defrosting (for 2 to 10 minutes) for increasing the heating efficiency.

• In defrosting operation, both the indoor and outdoor units stop air flow.

• Hiss sound is heard when flow of the refrigerant is changed for defrosting.

• Resultant water of automatic defrosting in heating operation drains from outdoor unit.

A white mist of chilled air or water is generated from the outdoor unit.

• When the indoor unit in cooling operation or the outdoor unit in defrosting operation occasionally steams.

Check these items. If any of these problems still remains, stop the operation,turn off the leakage breaker,and then

notifies the dealer of the serial number and details of the error. Never repair any part by yourself as it is dangerous.

When and a combination of , , , , or and a number are displayed on the remote controller, also

inform the dealer of the display content.

13Specifications

Declaration of Conformity

NOTE

This declaration becomes invalid if technical or operational modifications are introduced without the manufacturer’s

consent.

Model Sound power level (dB) Weight (Kg)

Cooling Heating

RAV-SM2242DT-E 74 74 160

RAV-SM2802DT-E 75 75 160

Manufacturer: Toshiba Carrier Corporation

336 Tadehara, Fuji-shi, Shizuoka-ken 416-8521 JAPAN

Authorized

Representative /

TCF holder:

Nick Ball

Toshiba EMEA Engineering Director

Toshiba Carrier UK Ltd.

Porsham Close, Belliver Industrial Estate,

PLYMOUTH, Devon, PL6 7DB.

United Kingdom

Hereby declares that the machinery described below:

Generic Denomination: Air Conditioner

Model / type: RAV-SM2242DT-E,

RAV-SM2802DT-E

Commercial name: Digital Inverter Series Air Conditioner

Complies with the provisions of the “Machinery” Directive (Directive 2006/42/EC) and the regulations transposing

into national law

Must not be put into service until the final machinery into which it is to be incorporated has been declared in

conformity with the provisions of this Directive, where appropriate.

Complies with the provisions of the following harmonized standard:

EN 378-2: 2008+A1: 2009

21-EN 22-EN

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MEMO

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MEMO

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MEMO

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EH99940401

Information according to EMC Directive 2004/108/EC

(Name of the manufacturer) TOSHIBA CARRIER CORPORATION

(Address, city, country) 336 Tadehara, Fuji-shi, Shizuoka-ken

416-8521 Japan

(Name of the Importer / Distributor in EU) Toshiba Carrier UK Ltd.

(Address, city, country) Porsham Close, Belliver Industrial Estate, PLYMOUTH,

Devon, PL6 7DB. United Kingdom

Toshiba RAV-SM2242DT-E User manual

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