Techibel MCAF74R5TAA User manual

OPERATING INSTRUCTIONS • ISTRUZIONI D’USO

NOTICE D’UTILISATION • BEDIENUNGSANLEITUNG

INSTRUCCIONES DE USO

Split air conditioner system • Condizionatore d’aria split system

Climatiseurs split • Split-klimagerät

Acondicionador de aire de consola partida sistema split

COOL / DRY / HEAT / FAN Models

MCAF74R5TAA

MCAF94R5TAA

MCAF124R5TAA

This air conditioner is equipped with cooling, drying and fan only functions , cooling, drying, heating and

fan only functions . . Detailsonthese functions are provided below; refer to these descriptions when

using the air conditioner.

CONTENTS

COOL/DRY/FAN Models

COOL / DRY / HEAT / FAN Models

NAME OF PARTS AND OPERATION SELECTOR SWITCH 3

INSTALLATION LOCATION 4

ELECTRICAL REQUIREMENTS 4

SAFETY INSTRUCTIONS 4

USING THE REMOTE CONTROL UNIT 5

REMOTE CONTROL UNIT 6

HOW TO SET THE PRESENT TIME 7

COOLING 7

HEATING 7

AUTOMATIC OPERATION 7

DEHUMIDIFYING (DRY) 8

FAN ONLY 8

ADJUSTING THE FAN SPEED 8

SLEEP MODE 8

SETTING THE TIMER 9

ADJUSTING THE AIR FLOW DIRECTION 9

OPERATION WITHOUT THE REMOTE CONTROL UNIT 10

CARE AND CLEANING 10

TIPS FOR ENERGY SAVING 11

TROUBLESHOOTING 11

DECLARATION OF CONFORMITY

This product is marked as it satisfies Directives:

– Low voltage no. 73/23 EEC and 93/68 EEC.

– Electromagnetic Compatibility no. 89/336 EEC, 92/31 EEC and 93/68 EEC.

This declaration will become void in case of misusage and/or from non observance though partial of Manufacturer's installation

and/or operating instructions.

NOTE

PRODUCT INFORMATION

If you have problems or questions concerning your Air Conditioner,

you will need the following information. Model and serial numbers

are on the nameplate on the bottom of the cabinet.

Model No.

Serial No.

Date of purchase

Dealer’s address

Phone number

The following symbols used in this manual, alert you to potentially

dangerous conditions to users, service personnel or the appliance:

This symbol refers to a hazard or unsafe practice

which can result in severe personal injury or death.

ALERT SYMBOLS

This symbol refers to a hazard or unsafe practice

which can result in personal injury or product or

property damage.

WARNING

CAUTION

NAME OF PARTS AND OPERATION SELECTOR SWITCH

1. Remote control unit.

2. Sensor: Detects the room temperature around the remote

control unit, the air conditioner is controlled accordingly.

3. Air outlet : distributes filtered and treated air into the room.

4. Air inlet : room air is sucked in through filters.

5. Receiver : receives signals transmitted from the remote control.

6. Flexible drain tube: removes condensate.

7. Refrigerant tubes: convey refrigerant between the indoor

and outdoor unit.

8. Operation selector (without remote control): Push the

button to walk through the OFF, COOL and HEAT operation

modes.

INDOOR UNIT

OUTDOOR UNIT

INDOOR UNIT

OPERATION lamp

TIMER lamp

STANDBY lamp

FILTER lamp

COOL MODE lamp

HEAT MODE lamp

RESET button

(Press to turn off the filter lamp and

cancel the buzzer announcer)

ELETRICAL REQUIREMENTS

INSTALLATION LOCATION

●Before installation, check that the voltage of the electric supply

in your home or office is the same as the voltage shown on the

nameplate.

●All wiring must conform to the local electrical codes. Consult

your dealer or a qualified electrician for details.

●Each unit must be properly grounded with a ground (or earth)

wire or through the supply wiring.

●Wiring must be done by a qualified electrician.

SAFETY INSTRUCTIONS

●Read this booklet carefully before using this air conditioner.

If you still have any difficulties or problems, consult your

dealer for help.

●This air conditioner is designed to give you comfortable

room conditions. Use this only for its intended purpose as

described in this Instruction Manual.

●Never use or store gasoline or other flammable vapor or liquid

near the air conditioner. It is very dangerous.

●Never install electrical equipment, which is not protected

with IPX1 protection (protection against vertical water drop),

under the unit.

●The manufacturer assumes no responsabilities if the safety

regulations or local codes are not observed.

●Never use the power main switch to start or stop the air

conditioner: always use the ON/OFF button on the remote

control unit or the selector switch on the unit.

●Do not stick anything into the air outlet of the air conditioner.

This is dangerous because the fan is rotating at high speed.

●Do not let children play with the air conditioner.

●Do not cool the room too much if babies or invalids are

present.

●We recommend this air conditioner to be installed properly

by qualified installation technicians in accordance with the

installation instructions provided with the unit.

●Do not install this air conditioner where there are fumes

or flammable gases, or in an extremely humid space

such as a green house.

●Do not install the air conditioner where excessively high

heat-generating objects are placed.

●Do not install the air conditioner where the atmosphere

is extremely damp or humid (e.g. greenhouse or laundry)

it could be wetted by drops of water (i.e. in laundries).

Avoid

To protect the air conditioner from heavy corrosion, avoid installing

the outdoor unit where salty sea water can splash directly onto

it or in sulphurous air near a spa.

The OFF position does not disconnect the power. Use the

main power switch to turn off power completely.

WARNING

CAUTION

OPERATION lamp: This lamp lights up during operation.

It blinks once to announce that the remote control signal has been

received and stored. It blinks continuously during the protection

modes (defrosting, etc.).

STANDBY lamp: This lamp lights up when the air conditioner is

connected to the power and ready to receive the remote control

command.

TIMER lamp: This lamp lights up when the system is being

controlled by the timer or sleep mode.

WARNING

CAUTION

TEMPERATURE SENSOR SELECTOR

●Under normal conditions the room temperature is detected and

checked by the temperature sensor placed in the air conditioner.

●Press the remote control I FEEL button to activate the

temperature sensor placed in the remote control. This function

is designed to provide a personalised environment by transmitting

the temperature control command from the location next to you.

Therefore, in using this function, the remote control should

always be aimed, without obstruction, at the air conditioner.

The remote control unit sends the

temperature signal to the air

conditioner regularly at two

minute intervals. If the signal from

the remote control unit stops for

more than five minutes due to

some troubles, the air conditioner will switch to the

temperature sensor which is built into the indoor unit and

controls the room temperature. In these cases, the

temperature around the remote control unit may differ from

the temperature detected in the air conditioner position.

REMOTE CONTROL UNIT

DISPLAY

OPERATION WITH THE REMOTE CONTROL UNIT

Check that the circuit breaker on the power panel is turned ON

and the the STANDBY lamp is light up.

When using the remote control unit, always point the unit

transmitter head directly at the air conditioner receiver.

HOW TO TURN ON THE AIR CONDITIONER

Press the ON/OFF button to turn the air conditioner on. The

indicator OPERATION will light up, indicating the unit is in

operation.

(TRANSMITTER HEAD)

REMOTE CONTROL UNIT

HOW TO INSTALL BATTERIES

●Remove the lid in the rear part of the remote control unit.

●Insert two AAA alkaline batteries of 1,5 V-DC.

Make sure the batteries point in the direction marked in the

battery compartment.

●The batteries last about six months. Depending on how much

you use the remote control unit.

Remove the batteries if you do not use the remote control unit

for more than one month.

Press the +, -, SET and CLEAR buttons together after batteries

replacement.

(This operation allows you to reset correctly all the programs.

The remote control unit is to be set up again).

Replace the batteries when the remote control unit lamp fails

to light, or when the air conditioner does not receive the remote

control unit signals.

●The batteries of the remote control contain polluted substances

exhausted batteries must be disposed according to the laws

in force.

USING THE REMOTE CONTROL UNIT

NOTE

CAUTION

INDOOR UNIT

RECEIVER

SLEEP BUTTON

For details, see "Sleep mode".

When you press this button in the COOL, HEAT or

DRY mode, the mark appears on the

display and the microcomputer in the remote control

unit will adjust the set temperature to save energy.

MODE SELECTOR BUTTON

Press this button to modify the air conditioner mode.

(automatic)



When this setting is selected, the air conditioner calculates the

difference between the thermostat setting and the room temperature

and automatically switches to the "cool" or "heat" mode.

(heating) 

The air conditioner makes the room warmer.

dehumidification (dry)

The air conditioner reduces the humidity in the room.

(cooling)

The air conditioner makes the room cooler.

(fan)

The air conditioner circulate the air.



COOL / DRY / HEAT / FAN Models

REMOTE CONTROL UNIT

TRANSMITTER

When you press the buttons of the

remote control unit, the mark

appears on the display to transmit the

setting changes to the receiver in the

air conditioner.

TEMPERATURE SETTING BUTTONS

— (cooler)

Press this button to decrease the set temperature.

(warmer)

Press this button to increase the set temperature.

FLAP SPEED SELECTORS

SET BUTTON

Push this button to select the functions:

• set the present time

• set the ON-OFF timer

For detail see “HOW TO SET THE PRESENT TIME”

and “SETTING THE TIMER”.

LOCKING THE REMOTE CONTROL

Pushing this button freezes the last operation setting.

When is activated the remote control will not be

able to control the air conditioner. To release the lock

status push again.

DISPLAY

Information are displayed when the remote control unit is switched on.

TEMPERATURE SENSOR

SELECTOR

Push IFEEL button to activate the temperature

control in the remote control unit. This function

provides a more confortable temperature control.

Press this button to select the desidered flap sweep

function.

: The flap moves up and down

automatically.

: Every time you push the button

the flap moves one step.

FAN SPEED SELECTOR BUTTON

Fan speed is automatically

selected by the microcomputer.

High speed.

Medium speed.

Low speed.

Operation Mode

Automatic

Cooling

Heating

Fan speed indication

High speed

Automatic fan

speed

Medium speed

Low speed

Dehumidification (dry)

Displayed when data trasmitted

Or remote control unit lock

Clock

(hours and minutes) Set temperature or

room temperature

Displayed when the

temperature is the

room temperature

Indicate that the air

conditioner is operating

in I FEEL mode

Fan only

Displayed in Sleep

Mode Operation

Automatic flap oscillation

switched on

Displayed

when the timer

on is set and

activated

Displayed

when the timer

off is set and

activated

Shows the

type of timer

TIMER AND PRESENT TIME SETTING

BUTTONS

Pushing + or - buttons the setting of the time and timer

can be activated. For detail see “HOW TO SET THE

PRESENT TIME” and “SETTING THE TIMER”.

TIMER RESET

Push the CLEAR button to cancel all timer setting.

ROOM TEMPERATURE

Push the ROOM button to show the actual room

temperature around the remote control.

TIMER BUTTON (timer setting)

Push the TIMER on the display starts the timer ON and

OFF setting procedure.

For detail see “SETTING THE TIMER”.

SENSOR

A temperature sensor inside the remote control

unit detects the room temperature.

ON/OFF OPERATION BUTTON

This button turns the air conditioner ON and OFF.

AUTOMATIC OPERATION

HEATING

COOL / DRY / HEAT / FAN Models

HEATING PERFORMANCE

A heat pump conditioner heats a room by taking heat from outside

air. The heating efficiency will fall off when the outdoor temperature

is very low. If enough heat is not obtained with this air conditioner,

use another heating appliance in conjunction with it.

For several minutes after the start of heating operation, the indoor

fan will not run until the indoor heat exchanger coil has warmed

up sufficiently. This is because the COLD DRAFT PREVENTION

SYSTEM is operating.

DEFROSTING OF HEAT EXCHANGER

OUTDOOR UNIT “STANDBY”

When the outdoor temperature is low, frost or ice may appear on

the heat exchanger coil, reducing the heating performance. When

this happens, a microcomputer defrosting system operates. At

the same time, the fan in the indoor unit stops and the OPERATION

lamp is flashing until defrosting is completed. Heating operation

restarts after several minutes. (This interval will vary slightly

depending on the room and outdoor temperature).

HOW TO SET THE PRESENT TIME

1. Press the SET button for five seconds. The time indication

alone flashes.

2. Press the + or - buttons until the present time is displayed.

3. Press the SET button to stop the indication flashing.

COOLING

Verify that the unit is connected to the main

power and the STANDBY lamp is light up.

1.Set the MODE selector to COOL .

2.Press the ON/OFF button and switch the air

conditioner ON.

3.Press the TEMP. buttons (3) to set the

desired temperature (the temperature range

is between 30 °C max. and 16 °C min.).

NOTE

THE DISPLAY SHOWS THE

SELECTED TEMPERATURE.

4. Press the FAN SPEED button to select the fan speed.

5.Press the FLAP buttons and adjust the air flow direction as desired

(see adjustment of air flow). Make sure that the remote control is

switched on. Press the FLAP button to select automatic swing or

one of the six manual settings.

1.Set the MODE selector to HEAT .

2.Press the ON/OFF button and switch the air condioner ON.

3.Press the TEMP. buttons (2) to set the desired temperature (the

temperature range is between 30 °C max. and 16 °C min.).

4. Press FAN SPEED selector button to the setting you want.

5. Press the FLAP button and adjust the air flow direction as desired

(see adjustment of air flow). Make sure that the remote control is

switched on. Press the FLAP button to select automatic swing or

one of the six manual settings.

THE DISPLAY SHOWS THE SELECTED

TEMPERATURE.

21.Set the MODE selector to AUTO .

2.Press the ON/OFF button and switch the air condioner ON.

3.Press the TEMP. (2) buttons to set the desired temperature (the

temperature range is between 30 °C max. and 16 °C min.).

THE DISPLAY SHOWS THE SELECTED

TEMPERATURE.

When this setting is selected, the air conditioner calculates the

difference between the thermostat setting and the room temperature

and automatically switches to the COOL or HEAT mode as

appropriate.

4.Switch the FAN SPEED selector button to the setting you want.

Example of operation diagram in the (Auto) mode with the set

room temperature at 23°C.

ONON ON

∆1 H ∆1 H

MIN. MAX.

COOL / DRY / HEAT / FAN Models

NOTE

The above mentioned data make reference to the conditioner

operating when the sensor on the remote control unit is ON. (Refer

to temperature sensor selector). If the sensor on the indoor unit

is being used then actual operation will slightly differ from that

described in the above tables. ( ) Sign shown on the remote

control unit display).

ADJUSTING THE FAN SPEED

AUTOMATIC

Simply set the FAN SPEED selector to the position

. A microcomputer automatically controls the fan speed when the

AUTO mode is selected. When the air conditioner starts operating,

the difference between the room temperature and the set

temperature is detected by the microcomputer which then

automatically switches the fan speed to the most suitable level.

WHEN DIFFERENCE BETWEEN

ROOM TEMPERATURE AND SET FAN SPEED

TEMPERATURE IS

Cooling and

2 °C and over High

dehumidifying modes

Between 2 and 1 °C

Medium

Below 1 °C Low

2 °C and over High

Heating mode:

Below 2 °C Medium

High speed Med. speed

Low speed

MANUAL

If you want to manually adjust speed just set the FAN SPEED

selector as desired.

NOTE

1°C

1 hour 1 hour TIME

Setting temperature Room temperature

COOLING AND DEHUMIDIFYING

1°C

1 hour 1 hour. TIME

Setting temperature Room temperature

HEATING

SLEEP MODE

●The SLEEP mode enables you to save energy.

1. Set the MODE selector to cool, dry or heat.

2. Press the SLEEP button.

3. The mark appears on the display. Press the SLEEP

button again to release the SLEEP function.

What does the SLEEP mode mean?

In this mode, the air conditioner will cool or heat the room to the

set temperature, and then the thermostat will make the unit pause.

After about 1 hour, the air conditioner will automatically reset the

set temperature as follows (also refer to graphs).

OPERATING MODE SET TEMPERATURE CHANGE

Heating Lowered by 1 °C

Cooling and Dehumidifying Raised by 1 °C

When the room temperature reaches the new set value, the

thermostat will cause the unit to pause. After about 1 hour the

temperature will be raised by 1 °C in cooling, or lowered by 1 °C

in heating. This enables you to save energy without sacrificing

your comfort.

EG DEHUMIDIFYING (DRY)

1.Set the MODE selector switch to “DRY”.

2.Press the ON/OFF button and switch the air condioner ON.

3.Press the TEMP. (2) buttons to set the desired temperature (the

temperature range is between 30 °C max. and 16 °C min.).

THE DISPLAY SHOWS THE SELECTED

TEMPERATURE.

NOTE

●Use DRY operation when you want to reduce the humidity in the

room.

●Once the room temperature reaches the set level, the unit

repeats the cycle of turning on and off automatically.

●During DRY operation, the fan speed is automatically set to low

or stops to prevent overcooling.

●Dry operation is not possible if the indoor temperature is 15 °C

or less.

NOTE

The air conditioner changes the operation mode (from cool to heat

or vice versa, if one of the following conditions occurs:

-ZONE A: changes if the difference between the room temperature

and the temperature set on the remote control unit is at least 3°C..

-ZONE B: changes if the difference between the room temperature

and the temperature set on the remote control unit is at least 1°C,

one hour after the compressor stop.

- ZONE C: never changes if the difference between the room

temperature and the temperature set on the remote control unit is

no more than 1°C.

FAN ONLY

If you want to make air circulate without any temperature control,

follow these steps:

1. Set the MODE selector switch to “FAN”.

2. Press the ON/OFF button and switch the air conditioner ON.

NOTE

In FAN Only mode the fan speed is adjusted automatically as in

cooling mode.

COOL / DRY / HEAT / FAN

VERTICAL (with remote control unit)

The remote control gives you the possibility to control the flap in

two way:

1. Push the button to start the flap sweep. If you push

again the flap stops immediately.

2. Push the button to move the flap step by step.

HORIZONTAL (manual)

The horizontal air flow can be adjusted by moving the vertical

vanes to the left or right, as indicated in the following figures.

ADJUSTING THE AIR FLOW DIRECTION

Set vertical vanes to the front position during COOLING/DRY

operation if humidity is high.

If the vertical vanes are set to the left-most or right-most

position, condensation will form around the air outlet and

drip off.

Do not move the flap with your hands when the air conditioner

is running.

D) HOW TO CLEAR THE TIMER

1. Press the TIMER button to select the timer.

2. Press the CLEAR button if you want that every timer operation

will be cleared.

SETTING THE TIMER

NOTE

If the procedure to set the timer is not completed, by pushing the

SET button, within 15 seconds the timer operation will be cancelled

and the last set-up is restored.

CAUTION

Vertical vane

There are four timers that can be selected on the remote

control.Two daily timers (designated as T1,T2) ,and two optional

weekend timers (designated as WKTI, WKT2) .Each timer can be

selected by pressing TIMER button (2).

The daily timers T1 and T2 can be set for ON and OFF separately

for two different time periods.

Timer setting will not change until new setting is input.

The weekend timers WKT1 and WKT2 can be set for ON and

OFF separately for two different time periods and they are effective

two days only. These timers will be effective on the day of setting

and on the day after only.

At 24:00 on the second day, the WK timer will not be effective

anymore and the daily timer will be effective again.

WKTI - effective on the setting day

WKT2 - effective one day after the setting day.

NOTE:

1. During the weekend timer operation, the daily timers will

be disabled.

2. The WK timers must be reactivated before every weekend.

A) HOW TO SET THE OFF TIME

1. Press the TIMER button to select the

desired timer.

2. Press the SET and CLEAR buttons till the

OFF sign blinks.

3. Press the + or - (HOUR) button until the

desired value is displayed.

4. Press the SET button to activate the timer.

B) HOW TO SET THE ON TIME

1. Press the TIMER button to select the

desired timer.

2. Press the SET button till the ON sign blinks.

3. Press the + or - (HOUR) button until the desired value is

displayed.

4. Press the SET and CLEAR buttons to activate the timer.

C) HOW TO SET A PROGRAM FOR DAILY ON/OFF OPERATION

(OR VICEVERSA)

1. Press the TIMER button to select the desired timer.

2. Press the SET button till the ON sign blinks.

3. Press the + or - (HOUR) button until the desired value is

displayed.

4. Press the SET button again, the OFF sign blinks.

5. Press the + or - (HOUR) button until the desired value is

displayed.

6. Press the SET button to activate the timer.

Right

Left

CARE AND CLEANING

●For safety, be sure to turn the air conditioner off and also to

disconnect the power before cleaning.

●Do not pour water on the indoor unit to clean it. This will damage

the internal components and cause an electric shock hazard.

CASING AND GRILLE (INDOOR UNIT)

Clean the casing and grille of the indoor unit with a vacuum cleaner

brush, or wipe them with a clean, soft cloth.

If these parts are stained, use a clean cloth moistened with a mild

liquid detergent.

When cleaning the grille, be careful not to force the vanes out of

place.

The air intake grille can be removed in order to wash it

with water.

●Never use solvents, or harsh chemicals when cleaning the indoor

unit. Do not wipe the plastic casing using very hot water.

●Some metal edges and the vanes are sharp and may cause

injury if handled improperly; be especially careful when you

clean these parts.

●The internal coil and other components of the outdoor unit must

be cleaned every year. Consult your dealer or service centre.

NOTES

Sweep function

The flap starts moving up and down to deliver air

over the sweep range.

•The flap automatically closes when the unit is off.

•During the heating operation, the fan speed

will be very low and the flap will be in the

horizontal position (position 6 ) until the air

being blown out of the unit begins to warm.

Once the air warms up, the flap position and

fan speed change to the settings specified

with the remote control.

• Use the FLAP button on the remote control to adjust

the position of the flap. If you move the flap by hand,

the factual flap position and the flap position on the

remote control may no longer match. If this should

happen, shut off the unit, wait for the flap to close,

and then turn on the unit again; the flap position will

now be normal again.

• Do not have the flap pointed down during cooling

operation. Condensation may begin to form around the

air vent and drip down.

WARNING

CAUTION

Flap

Air outlet

grille

2. WHEN THE AIR CONDITIONER IS RUNNING

If you want to turn off the air conditioner push the MODE button

with a pen until the COOL or HEAT lamp is turned off.

Power failure during operation.

In the event of power failure, the unit will stop. When the power

is resumed, the unit will restart automatically after 3 minutes.

NOTE

If you have lost the remote control unit or it has troubles, follow

the steps below.

1. WHEN THE AIR CONDITIONER IS STOPPED

If you want to turn on the air conditioner push the MODE button

with a pen to select the desired mode (COOL or HEAT).

OPERATION WITHOUT THE REMOTE

CONTROL UNIT

The air conditioner will start in automatic fan speed and flap

sweep operation. The temperature setting is 22°C for cooling

mode and 26°C for heating mode.

NOTE

Operation

selector

Down

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