Brandt FC-53B Owner's manual

E N G L I S H

CENTRAL AIR CONDITIONING

I T A L I A N O

SISTEMA DI CLIMATIZZAZIONE CENTRALIZZATO

E S P A Ñ O L

ACONDICIONAMIENTO DE AIRE CENTRAL

MICROCOMPUTER CONTROL

CONTROLLO A MICROPROCESSORE

CONTROL POR MICROPROCESADOR

OPERATING MANUAL

MANUALE DI FUNZIONAMENTO

MANUAL DE INSTRUCCIONES

MODE TIMER

OPERSTBY

COOL HEAT

MODE TIMER

OPERSTBY

COOL HEAT

2

E N G L I S H

❒

❒❒

❒ INTRODUCTION

The central space-saving split heat-pump air conditioner is

designed for commercial, institutional and residential

applications:

Cooling air in the summer

Dehumidifying the air at

high humidity conditions

Heating

Air filtration

Ventilation

OPERATING TEMPERATURE RANGE:

Indoor Outdoor

Cooling:

16° - 30° C

Heating:

16° - 30° C

10° - 46° C

-5° - 21° C

IMPORTANT NOTICE:

• This air conditioner must be grounded to protect

against electrical shock.

• Installation of the air conditioner must be

performed by an experienced air-conditioning installer,

observing good refrigeration practice.

• Electrical connections should only be made by

authorized electricians and in accordance with

electrical regulations and local codes.

• Failure to comply with the manufacturer's

installation and operation instructions could affect

the performance of the air conditioner and the validity

of the warranty.

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E N G L I S H

❒

❒❒

❒ SYSTEM DESCRIPTION

1. Power Supply

2. Air Filter

3. Return Air Intake

4. Supply Air Outlet

5. Central Control Unit Cord

6. Central Control Unit Display

7. Control Wire

8. Interconnecting Cable

9. Condensate Tube

10. Suction Line

11. Liquid Line

12. Outdoor Unit Air Intake

13. Outdoor Unit Air Outlet

14. Remote Control Unit

15. Remote Control Holder

16. Wall-mounted disconnect switch

MODE

TI M E R

OPE RSTBY

COO L HE AT

16

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E N G L I S H

❒

❒❒

❒ SYSTEM DESCRIPTION

1. Power Supply

2. Air Filter

3. Return Air Intake

4. Supply Air Outlet

5. Central Control Unit Cord

6. Central Control Unit Display

7. Control Wire

8. Interconnecting Cable

9. Condensate Tube

10. Suction Line

11. Liquid Line

12. Outdoor Unit Air Intake

13. Outdoor Unit Air Outlet

14. Remote Control Unit

15. Remote Control Holder

16. Wall-mounted disconnect switch

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8

E N G L I S H

❒

❒❒

❒ MODES OF OPERATION,

FUNCTIONS AND FEATURES

The air conditioner is based on a microcomputer control

system with remote wall mounted LCD display and control

unit, programmed for the following modes and functions:

COOL

Cools, dehumidifies and filters the room air. Maintains

desired site temperature.

HEAT

Heats and filters the air. Maintains desired site temperature.

AUTO

Automatically switches from COOLING to HEATING or from

HEATING to COOLING, maintaining the desired

temperature according to the room conditions.

DRY

Dehumidifies and moderately cools the room. In DRY Mode

the air conditioner operates at an increased dehumidifying

power. This function is recommended to be used when

temperature is rather cool but the humidity is high.

FAN

Recalculates and filters the room air. Maintains constant air

movement in the room.

AUTO FAN

The air conditioner automatically selects the FAN speed in

accordance to the room temperature. At the start, the unit

operates at high fan speed. As the room air gets closer to the

desired temperature, the fan switches on a lower speed for

quieter operation.

HOT KEEP

In HEATING and in AUTO FAN, the fan will be turned off

when the compressor is not in operation and will not be

restarted, unless the indoor coil reaches adequate

temperature. This HOT KEEP feature prevents

uncomfortable cold air drafts. AUTO FAN Is therefore,

recommended to be used when the air conditioner is in

HEATING mode.

ROOM TEMP.

Measures and displays room temperature.

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E N G L I S H

I FEEL

Switches the temperature sensing point to the place where

the remote control is located (in normal operation the

temperature sensor is located behind the intake grille of the

air conditioner). This function is designed to provide a

personalized environment by transmitting the temperature

control information from where the remote control is

placed. The communication between the remote control

and the central control unit is done by infrared signal.

When using this function, the remote control should

always be aimed without obstructions at the air conditioner.

TIMER

Real time control and display, automatically turns the air

conditioner ON or OFF according to the time of day setting,

ensuring comfort conditions before returning home,

without wasting electricity. It turns off the air conditioner

automatically when sleeping.

SLEEP

Designed to automatically reset the temperature setting. In

COOLING mode the temperature rises one degree

centigrade after each consecutive hour, up to three hours,

from the start of the mode. In HEATING mode, the reverse

occurs, the air conditioner lowers its temperature one

degree every hour. When in SLEEP Mode, the operation

will automatically turn off after seven hours. This function

saves energy when the air conditioner is operating during

off hours.

3-MIN DELAYED

RUN

The compressor is protected by a three minute delayed

restart.

MEMORY

The microprocessor retains the last data entry whether or

not the unit is plugged in. Therefore, when the unit restarts

after a power disruption or power failure, it will resume

operation in the same mode as before the power

disruption.

LOCK

Freezes the last operation setting on the remote control.

When LOCK is activated, the remote control will not be

able to control the air conditioner.

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E N G L I S H

• Aim at the infrared signal receiver on the central control

unit when operating.

• The remote control signal can be received at a distance of

up to 8 m.

• Be sure that no obstructions exist between the remote

control and the signal receiver.

• Do not drop or throw the remote control unit.

• Do not place the remote control unit in a location

exposed to direct sunlight, or next to a heating unit, or

any other heat source.

• Do not expose the air conditioner signal receiver (G) to a

strong light such as fluorescent lamp or sunlight

❒

❒❒

❒ USE OF WIRELESS REMOTE

CONTROL

PRIOR TO OPERATION

• Prior to operating your air conditioner, make sure that:

• The indoor unit is properly connected to the power

supply.

• Indicator (A) on the central control display is lit,

meaning that the air conditioner is ready to accept your

remote control commands.

• The red tab protecting the remote control battery has

been removed.

• For clock setting, refer to page 26.

REMOTE CONTROL COMPARTMENT

Use the remote control holder when unit is not in use.

Remote control can be flipped in or out of its holder.

MODE

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14

E N G L I S H

❒

❒❒

❒ CENTRAL CONTROL DISPLAY

PANEL

A. STAND-BY INDICATOR

Lights up when the air conditioner is connected to

power and ready to receive the remote control

commands.

B. OPERATION INDICATOR

Lights up during operation. Blinks to announce that

the remote control infrared signal has been

received and stored.

C. TIMER INDICATOR

Lights up during TIMER and SLEEP operation.

D. COOLING INDICATOR

Lights up only when button (E) is pressed.

E. MODE - COOL / HEAT / ON / OFF - UNIT

OPERATION BUTTON

Used to switch the unit to positions: OFF, ON,

COOLING or HEATING without the use of the

remote control. The button can be activated by a

plastic rod or splinter.

F. HEATING INDICATOR

Lights up only when button (E) is pressed.

G. SIGNAL RECEIVER

Receives IR signals from the remote control.

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E N G L I S H

❒

❒❒

❒

REMOTE CONTROL

START/STOP button

Operation mode selection button:

COOLING

HEATING

AUTO COOL / HEAT

FAN

DRY

I FEEL temperature sensing button

FAN SPEED and AUTO FAN button

Room temperature UP button

Room temperature DOWN button

SLEEP button

Not used

TIMER button

TIMER UP button

TIMER DOWN button

LCD operation display

I FEEL sensor

Infra-red signal transmitter

ROOM temperature button

TIMER SET button

TIMER CLEAR button

LOCK button

Transmission sign

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E N G L I S H

❒

❒❒

❒ OPERATION PROCEDURE

TURNING ON THE AIR CONDITIONER

Press START/STOP button (1) to turn the air conditioner on.

Indicator (B) on the central control display will light up,

indicating that the unit is in operation. Note that the LCD

operation display (13) will always show the last mode of

operation and the previous function used. Follow the

instructions if you choose to change the control settings;

otherwise, the air-conditioner will start and operate in the

same mode and functions prior to being turned off.

VENTILATING OPERATION

Select the ventilating mode by pressing MODE button (2).

Switch to the desired fan speed by pressing FAN speed

button (4).

COOLING OPERATION

Select the COOLING mode by pressing MODE button (2).

Switch to the desired fan speed or to AUTO FAN by pressing

button (4). Select suitable temperature setting.

COOLING OPERATION WITH AUTO FAN

MODE

This operation starts with the highest air flow in order to

quickly lower the room temperature. It will then automatically

switch to the low air flow to quietly maintain the selected

temperature.

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E N G L I S H

HEATING OPERATION

Select the HEATING mode by pressing MODE button (2).

Switch to the desired Fan Speed or to AUTO FAN by

pressing Fan button (4). Select suitable temperature setting.

HEATING OPERATION WITH AUTO FAN MODE

This operation starts with the highest air flow in order to

quickly raise the room temperature. It will then automatically

switch to the lower air flow to quietly maintain the selected

temperature.

HEATING with AUTO FAN will automatically provide the user

with the HOT KEEP function. The fan will be turned off when

the indoor coil temperature is not sufficiently high to prevent

uncomfortable cold air drafts.

AUTO COOLING/HEATING OPERATION

Select the AUTO mode by pressing MODE button (2).

Switch to the desired Fan Speed or to AUTO FAN by

pressing button (4). Select suitable temperature setting. At

the start, the air conditioner will select its mode of operation

according to the room temperature and the temperature

setting.

DRY OPERATION

Select the DRY mode by pressing MODE button (2). Select

the suitable temperature setting. While in DRY mode, the

air conditioner will operate at low fan speed, regardless of

the fan setting on the LCD operation display. The fan might

stop operating from time to time to prevent over-cooling.

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E N G L I S H

SELECTING THE TEMPERATURE

Press temperature button (5) or (6) to change the

temperature setting on the LCD operation display (13). The

temperature setting is shown in degrees centigrade. A higher

number indicates a higher room temperature; a lower

number indicates a lower room temperature.

I FEEL FUNCTION

Press I FEEL button (3) to activate the I FEEL function.

Thermometer sign and temperature set-up will appear on the

LCD operation display (13). Select suitable temperature

setting. Make sure that the remote control unit is aimed at

the central control display panel with the I FEEL sensor (14)

in front. Prevent the I FEEL sensor from being affected by

heat sources such as lamps, heaters, direct sun, etc., or

from being directly affected by the air conditioner air flow.

These may cause the sensor to transmit the wrong

temperature data, thereby disturbing the performance of the

I FEEL function.

SLEEP FUNCTION

Press SLEEP button (7) to select the SLEEP function. When

the SLEEP function is activated, the air conditioner will be

automatically turned off after 7 hours. If at the same time

TIMER OFF is activated as well, the air conditioner will be

turned off according to timer setting.

To cancel the SLEEP function, press one of the following:

• START/STOP button (1)

• SLEEP button (7)

TIMER OPERATION

Press TIMER select button (10) to activate the timer

operation mode. Each time the TIMER button (10) is

pressed, one of the following four types of operation modes

will appear on the LCD display. The operation modes are

sequenced in the direction of arrow. Indicator (C) on the

central control display will light up during TIMER operation.

NOTE: After power failure, indicator (C) blinks (when the unit

is in TIMER mode), the unit will be turned automatically to

STAND-BY mode and the timer operation will be canceled.

To resume the timer operation, wait 30 seconds and follow

the instructions above.

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E N G L I S H

I. TIMER ON

II. TIMER OFF

TIMER OPERATING MODES

I. TIMER ON

This mode enables you to set a starting operating

time. Press the TIMER button (10) till the ON

sign blinks. Starting time can be adjusted using

the up and down buttons (11) and (12),

respectively. Press SET button (17) to activate

the timer.

Example:Operation is restored at 10:30.

IV. CLEAR

III. TIMER ON AND OFF

II. TIMER OFF

This mode enables you to set the time at which

timer stops its operation. Press the timer button

(10) twice, the OFF sign will blink. Time can be

adjusted using the up and down buttons (11) and

(12), respectively. Press SET button (17) to

activate the timer.

Example: Operation stops at 18:00.

III. TIMER ON AND OFF

This mode enables you to set the start and stop

time of operation. Press the TIMER button (10)

till the ON sign blinks, by pressing again the OFF

sign will blink. Time can be adjusted by using the

up and down buttons (11) and (12), respectively.

Press SET button (17) to activate the timer.

Example: Operation is restored at 10:30 and

stops at 18:00.

IV. CLEAR

Use this mode to cancel timer operation. Press

CLEAR button (18), timer operation will terminate

and the LCD display will be cleared for each

timer mode. When CLEAR button is pressed

timer indicator (C) will turn OFF.

NOTE: If timer button (10) is selected and

neither time adjust, SET, or CLEAR buttons are

pressed within 15 seconds, the timer operation

will be canceled and the last set-up will be

displayed.

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E N G L I S H

ROOM TEMPERATURE DISPLAY

By pressing the ROOM temperature button (16), the

measured room temperature and the room temperature

sign will be displayed.

To cancel the Room Temperature display, press one of the

following:

• Another pressing on room temperature button (16).

• Change of MODE button (2)

NOTE: Room temperature range is between 0°C and

36°C in 1°C increments. Display should show "HI" or

"LOW" to represent temperature above 36°C or below 2°C.

CURRENT CLOCK TIME SET

Clock setting is performed when batteries are inserted. The

remote control displays the setting and the clock display will

blink "00:00" or "12:00" till a new time is set. For clock

setting, use buttons (11) (12) for setting the hours and

minutes, respectively, and then press timer SET button

(17). The clock setting can also be performed by pressing

timer SET button (17) for 5 seconds. The clock display will

blink; for a new setting follow the steps described above.

LOCK MODE FUNCTION

By pressing lock button (19) the remote control will lock the

last operation setting. All function buttons will be

inoperative including START/STOP button. By pressing

lock button (19) again, the remote control will be released

from its locked mode. When lock mode is functioning, the

transmission sign (20) will be on.

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E N G L I S H

TURNING OFF THE AIR CONDITIONER

Press START/STOP button (1) to turn OFF the air

conditioner. Indicator (B) on the central control display will be

turned off. Indicator (A) will stay lit, indicating that the air

conditioner is in STAND-BY mode and ready to accept any

new command from the remote control. The remote control

LCD will display the clock time and room temperature. The

last operating set-up will be kept for the next operation.

CENTRAL CONTROL UNIT OPERATION

If the remote control cannot be operated, the air conditioner

can be turned on for cooling or heating or completely turned

off, by pressing MODE button (E) on the central display

control unit. Indicators (D) or (F) will light up to indicate in

which mode the air conditioner operates.

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E N G L I S H

❒

❒❒

❒ PROTECTION MODES

Your air conditioner includes several automatic protection modes, which enables you to use it virtually at any time and in any

season, regardless of the outdoor temperature. Some of the protection modes are listed below:

MODE

OPERATION

CONDITIONS

PROTECTION

FROM

CONTROLLED

REMEDY

Cooling

and Dry

Low outdoor

temperature

Indoor coil

freezes up

Stops outdoor fan and compressor when

approaching freezing conditions.

Resumes operation automatically.

High outdoor

temperature

Outdoor coil

overheating

Stops compressor when approaching

overheating conditions.

Resumes operation automatically.

Operating indicator (B) blinks.

Heating

Low outdoor

temperature

Outdoor coil

freezes up

Reverses operation from heating to

cooling for short periods to de-ice

outdoor coil .

Operating indicator (B) blinks.

High outdoor

temperature

Indoor coil

overheating

Stops outdoor fan and compressor when

approaching indoor coil temperature.

Resumes operation automatically.

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E N G L I S H

❒

❒❒

❒ CARE AND MAINTENANCE

CAUTION

Before performing any maintenance procedure, make sure to disconnect the air conditione

r

from the power supply.

CLEANING THE CONTROL UNIT

• Wipe off the control unit with a dry soft cloth. Avoid using hot water or volatile material

s

which could damage the surface.

AT THE BEGINNING OF THE SEASON

• Make sure no obstacles exist that block the flow of inlet or outlet air of the outdoor unit.

• Clean the air filter

• Make sure the power supply is properly connected and power switch is in its ON position.

REMOTE CONTROL BATTERY CHANGE

• Batteries should be replaced when the LCD operation information is no longer displayed.

• Remove the batteries from the remote control unit, as shown in figure on page 7.

• Replace with two 1.5 Volt size AAA batteries.

REMOVAL AND CLEANING THE AIR FILTERS

The air filters are located on rear side of indoor unit. The filters collect dust and particle

s

from the air and can easily be removed and cleaned. Clean the air filters once a month, o

r

more frequently, as required, by the following procedure:

1. Remove the filters from the air return opening by sliding out sideways, or by lifting i

t

slightly upward and pulling forward.

2. Rinse the filters in lukewarm water and dry thoroughly.

3. Re-install the filters in place by either sliding them sideways in their tracks, or by firs

t

inserting in the upper track, lifting and pushing into the lower track.

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E N G L I S H

❒

❒❒

❒ OPERATING TIPS

• Set a suitable room temperature; excessively low room

temperature is not good for your health and waste

s

electricity. Avoid frequent setting of the temperature.

• During cooling, avoid direct sun. Keep curtains and blind

s

closed. Close doors and windows to keep the cool air in th

e

room.

•

A

void generating heat or use of heating appliances whil

e

using the air conditioning in cooling.

• During prolonged operation, ventilate the room occasionall

y

by opening a window from time to time.

•

A

fter power failure: Operation of the unit will be resumed in

the last mode of operation, as before the power failure.

•

A

fter turning on, allow more than 3 minutes for cooling,

heating or dry operation to start.

• When DRY mode is used, make sure that the room

temperature is between 20 to 27°C. When used out of thi

s

range, the unit may protect itself and become inoperative.

• When COOL or DRY mode are used, make sure that the

room relative humidity is below 78%. If the unit is used

for a prolonged time in high humidity, moisture may form

on the air outlets and drip down.

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36

E N G L I S H

❒

❒❒

❒ BEFORE CALLING FOR SERVICE

Before calling for service, please check the following malfunctions and correct as needed.

PROBLEM

CAUSE

REMEDY

Unit does not operate.

Operation indicator does not

light up.

Unit not connected to power.

Power failure.

Set the power supply switch to ON.

Check main fuse.

Operator indicator blinks

continuously.

Unit failure. Call for service.

Remote control

iinformation is not displayed.

Battery failure (discharged) Replace batteries.

Air does not blow out from

indoor unit.

De-icing protection mode is

activated.

Unit is in AUTO FAN mode.

Over cooling in DRY mode.

Normal operation in HEATING mode.

Normal operation in AUTO FAN mode.

Normal operation in DRY mode.

COOLING, DRY or

HEATING will not start

immediately.

3-min. compressor delayed

start.

Normal operation for these modes.

Unit functions but is not up

to its performance.

Improper temperature setting.

A

ir filters are not clean.

Unit capacity is insufficient

for load or room size.

Reset temperature or clean air filter.

Clean the filters.

Consult your service center.

Unit does not operate.

STAND-BY indicator lights.

Remote control malfunctions. Check remote control batteries

Try to operate from a closer distance.

Start from Central Control Unit.

Perform reset operation by pressing

buttons: (11), (12), (17), (18).

Unit does not respond

properly to remote control

command.

IR signal does not reach unit.

Distance between remote

control and central control

display is too great, or aiming is

from improper angle.

IR receiver is exposed too much

to strong lights, especially

fluorescents.

Check for obstruction between unit and

clear if needed.

Get closer to central control display.

Dim lights.

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CAT. NO. 402733 MULTILANGUAGE REV. 01 02/98

Brandt FC-53B Owner's manual

Brandt FC-53B Owner's manual

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