Fujitsu Airstage UTB- LB Series Operating Manual

KEEP THIS OPERATION MANUAL
FOR FUTURE REFERENCE

FUJITSU GENERAL LIMITED

P/N9372112014

OPERATING MANUAL

AIR CONDITIONER

OPERATING MANUAL

BEDIENUNGSANLEITUNG

MODE D’EMPLOI

MANUAL DE FUNCIONAMIENTO

MANUALE DI ISTRUZIONI

ΕΓΧΕΙΡΙ∆ΙΟ ΛΕΙΤΟΥΡΓΙΑΣ

РУКОВОДСТВО ПО ЭКСПЛУАТАЦИИ

MANUAL DE INSTRUÇÕES

Remote Control Unit

UTB- LB

REMOTE CONTROLLER
(WIRED TYPE)

TM

English

Deutsch

Français

Español

Italiano

EλληvIkά

Русский

Português

En-1

C

F

6

7

8

9

0

A

B

D

E

5

4

3

2

1

GK

PNMO

JHLI

1 START/STOP button
2 Operation lamp
3 Energy save button
4 Day off button
5 Energy save lamp
6 Set button
7 Horizontal airflow direction and swing button
8 Horizontal swing lamp
9 Vertical airflow direction and swing button

0 Vertical swing lamp
A Clock adjust button
B Timer mode button
C Set time button
D Temp./Day button
E Fan control button
F Master control button
G Clock display
H Central control display
I Set temperature/Day display
J Fan speed display
K Master control display
L Anti freeze display
M Day off display
N Test display
O Defrost display
P Timer mode display

SAFETY PRECAUTIONS

● Before using the appliance, read these “PRECAUTIONS” thoroughly and operate in the correct way.

● The instructions in this section all relate to safety; be sure to maintain save operating conditions.

● “DANGER”, “WARNING” and “CAUTION” have the following meanings in these instructions:

CONTENTS

NAME OF PARTS

Display panel

SAFETY PRECAUTIONS.......................................................... 1

NAME OF PARTS ..................................................................... 1

PREPARATORY OPERATION ................................................... 2

OPERATION ............................................................................. 2

TIMER OPERATION (ON timer/OFF timer/Weekly timer) ..... 3

TIMER OPERATION (Weekly timer) ........................................ 5

OPERATING TIPS..................................................................... 6

ERRORS AND SELF-DIAGNOSIS ........................................... 7

TROUBLESHOOTING .............................................................. 7

SPECIFICATIONS ..................................................................... 8

DANGER!

This mark indicates procedures which, if improperly performed, are most likely to result in the death of or serious injury to
the user or service personnel.

This mark indicates procedures which, if improperly performed, might possibly result in personal harm to the user, or
damage to property.

This mark indicates procedures which, if improperly performed, might lead to the death or serious injury of the user.

DANGER!

● Do not attempt to install this controller by yourself.

● This controller contains no user-serviceable parts. Al-

ways consult authorized service personnel for repairs.

● When moving, consult authorized service personnel
for disconnection and installation of the controller.

● If a problem (burning smell, etc.) occurs, turn off the
electrical breaker immediately to stop operation, and
then consult authorized service personnel.

● In the event of a malfunction (burning smell, etc.), im­mediately stop operation, turn off the electrical breaker,
and consult authorized service personnel.

● If the wiring cord is damaged, contact your service rep­resentative for instruction.

● Never place fingers or foreign objects inside the outlet
port. Doing so could cause personal injury.

CAUTION!

● Do not expose the controller directly to water.

● Do not operate the controller with wet hands.

● Do not touch the switches with sharp objects.

● Always turn off the electrical breaker whenever clean-

ing the controller, the air conditioner or the air filter.

● Check the condition of the installation stand for dam­age.

● Ensure that any electronic equipment is at least one
metre away from the controller.

● Avoid installing the controller near a fireplace or other
heating apparatus.

● When installing the controller, take precautions to pre­vent access to infants.

● Do not use inflammable gases near the controller.

WARNING!

CAUTION!

Display

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PREPARATORY OPERATION

Instructions relating to heating are applicable only to “HEAT & COOL MODEL” (Reverse Cycle).

Set the current day and time

Press for 3 seconds. Select the number that corresponds to

the current day indicated by a code from
1 to 7.

12

Press repeatedly to adjust the current
time in 1-minute increments. Press con­tinuously to adjust the current time in 10­minute increments.

Press again to end.

34

Day code 1234567
Day of the

Mon Tue Wed Thu Fri Sat Sun

week

To start/stop operation

Start time: Operation lamp will light up.
Stop time: Operation lamp will go out.

Operation mode setting

→

AUTO

→

COOL

→

DRY

→

FAN → HEAT

NOTES

To set the operation mode

(1) • Always use the remote controller’s AIRFLOW DIRECTION button.

Attempting to move the air direction louvers manually could re­sult in improper operation; in this case, stop operation and re­start.
The flaps should begin to operate properly again.

• During use of the Cooling mode, do not set the VERTICAL air

direction flap in the 4 position for long time, since water vapor
may condense near the outlet port and drops of water may drip
from the air conditioner.

(2) • The range of swing is relative to the currently set airflow direc-

tion.

• The SWING operation may stop temporarily when the air condi­tioner’s fan is not operating, or when operating at very low speeds.

<Vertical airflow swing operation>
Airflow direction Range of swing

11 to 3
22 to 4
32 to 4
41 to 4 (All range)

<Horizontal airflow swing operation>
Airflow direction Range of swing

11 to 5 (All range)
21 to 3
32 to 4
43 to 5
51 to 5 (All range)

Fan speed setting

Room temperature setting

Vertical air direction adjustment (1)(2) (Swing operation)

Horizontal air direction adjustment (2) (Swing operation)

* Press the START/STOP button to start the air conditioner,

and then proceed as follows.

To set the swing operation, press the VERTICAL
SWING button for more than 2 seconds. (Stop
the setting by pressing for more than 2 seconds
again.)

To set the swing operation, press the HORIZON­TAL SWING button for more than 2 seconds.
(Stop the setting by pressing for more than 2
seconds again.)

Temperature setting range:

AUTO ....................................................... 18 to 30 °C

Heating .................................................... 16 to 30 °C

Cooling/Dry ............................................. 18 to 30 °C

1 2 3 4

1 2 3 4 5

→

AUTO

→

HIGH

→

MED

→

LOW

Energy save setting Anti freeze setting

Stop the “ENERGY SAVE” setting by pressing
the ENERGY SAVE button again.

Press at the same time for more than 3 seconds.
Stop the “ANTI FREEZE” setting by pressing

at the same time for more than 3 sec-

onds again.

* Press the START/STOP button to stop the air conditioner,

and then proceed as follows.

1

2

3

4

1

2

3

4

5

OPERATION

Instructions relating to heating are applicable only to “HEAT & COOL MODEL” (Reverse Cycle).

* Press the START/STOP button to start the air conditioner,

and then proceed as follows.

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TIMER OPERATION (ON timer/OFF timer/Weekly timer)

Instructions relating to heating are applicable only to “HEAT & COOL MODEL” (Reverse Cycle).

The timer function cannot be used when the remote controller is a slave unit. (For information concerning the slave unit, refer
to the INSTALLATION INSTRUCTION SHEET of the remote controller.)

To set the ON/OFF timer

1

Select either “OFF TIMER” or “ON TIMER”.

2

Set the on or off time.
Press repeatedly to adjust the time in 1-minute increments.
Press continuously to adjust the time in 10-minute incre­ments.

To cancel the TIMER mode during
TIMER operation

Press the TIMER MODE button and set the display to “NON
STOP” (the unit will switch to continuous operation).

To stop or start operation during use of
TIMER mode

Press the START/STOP button.

1

Select .

2

Select the number that corresponds to the selected day in­dicated by a code from 1 to 7.

3

Press for 3 seconds.
(The “WEEKLY 1” ON time starts flashing.)

To set the WEEKLY timer (For information concerning the WEEKLY TIMER function, refer to p. 7, “OPERATING TIPS.”)

* Press the START/STOP button to stop the air conditioner, and then proceed as follows.

4

Set the “WEEKLY 1” ON time.
Press repeatedly to adjust the time in 5-minute increments.
Press continuously to adjust the time in 10-minute incre­ments.

5

(The day display changes to the set temperature display.)

6

Select the desired operation mode.
Set the desired temperature.

10

(The “WEEKLY 2” ON time starts flashing.)

*If the settings are complete, proceed to step

13.

11

12 13

Press for 3 seconds.
(“WEEKLY” flashes for 3 seconds, then the clock display
reappears.)

Repeat steps 4 to 10 to set “WEEKLY 2”.

(Return to the “WEEKLY 1” ON time by pressing
the SET button.)

→

WEEKLY 1

→

WEEKLY 1

→

WEEKLY 2 → WEEKLY 2

ON OFF ON OFF

→

NON STOP →OFF

→

ON→ WEEKLY

(RESET) TIMER TIMER TIMER

9

Set the “WEEKLY 1” OFF time.

7 8

(The “WEEKLY 1” OFF time starts
flashing.)

Press the TEMP./DAY button to select another day

and repeat steps

4 to 11 to set another day.

*If the settings are complete, proceed to step

13.

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To start/stop the WEEKLY timer operation

To start

Select .
(If the air conditioner is running, the day display is replaced

by the temperature display.)

Next scheduled ON or OFF time

The current time

To stop

Select “NON STOP,” “OFF TIMER” or “ON TIMER”.

To review the WEEKLY timer settings

* Press the START/STOP button to stop the air conditioner, and then proceed as follows.

1 23

Select “WEEKLY”. Select the day that

you want to check.

Switch between

“WEEKLY 1” or
“WEEKLY 2” time dis-

plays.

To cancel the selected time settings

* Press the START/STOP button to stop the air conditioner, and then proceed as follows.

1 2

Hold down the ▼ side until the time display becomes blank
“-:--”.

3

(The “WEEKLY 1” OFF time is deleted and replaced by a
flashing blank pattern “--:--”.)

4

(The “WEEKLY 2” ON time starts flashing.)

5

If you want to delete “WEEKLY

2”, repeat steps

2 to 4 .

6

If you want to delete the setting
of another day, press the
TEMP./DAY button to select an­other day, and then repeat

steps

2 to 10.

7

Press for 3 seconds.
(“WEEKLY” flashes and then the clock
display reappears.)

NOTES

(1) PRECAUTIONS DURING WEEKLY TIMER SETUP

Setup is not possible in the following cases, so amend the time.

• Be sure to set the ON time first, then the OFF time. If either
the ON time or the OFF time is not set correctly, the timer will
not operate properly.

• The WEEKLY 2 settings cannot be set earlier than the WEEKLY
1 settings.

• The WEEKLY 1 and WEEKLY 2 time spans cannot overlap.

(2) • The earliest OFF time you can set is 5 minutes after the ON

time.

• The latest OFF time is 23:55 on the subsequent day.

(3) You do not need to set values for both WEEKLY 1 and WEEKLY

2. If you wish, you can set values only for WEEKLY 1 or only for

WEEKLY 2.

(4) • If you set the OFF time to occur on the day following the ON

time, the NEXT DAY caption appears on the display.

• Operation continues if the OFF time for WEEKLY 1 is the same
time as the ON time for WEEKLY 2.

(5) If the WEEKLY 1 and WEEKLY 2 settings are set to run consecu-

tively, the temperature and operation mode settings become
the WEEKLY 2 settings after the ON time for WEEKLY 2.

ON COOL 26 °C ON DRY 25 °C

OFF

Perform steps 1 to 3 in “To set the WEEKLY timer.”

(P. 3)
Select the day to cancel.

(6) For Heat Pump models, operation may not occur according to

the settings for the HEAT timer during the cooling mode and for
the COOL or DRY timer during the heating mode.

(7) Even if the timer operation is set, the timer indicator lamp of the

indoor unit does not light up. (The timer indicator lamp is used
for wireless remote controllers only.)

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To change the selected time settings

* Press the START/STOP button to stop the air conditioner, and then proceed as follows.

1 2

Select the time to change. (The selected setting starts flash­ing.)

3

4 5

6 7

Press for 3 seconds.
(“WEEKLY” flashes for 3 seconds and then the clock dis-
play reappears.)

TIMER OPERATION (Weekly timer)

Instructions relating to heating are applicable only to “HEAT & COOL MODEL” (Reverse Cycle).

To change selected operation mode and set temperature

* Press the START/STOP button to stop the air conditioner, and then proceed as follows.

1

2

(The day display changes to the set temperature display.)

3

4

6

7 8

Press for 3 seconds.
(“WEEKLY” flashes for 3 seconds and then the clock dis-
play reappears.)

Change the operation mode.
Change the set temperature.

To set the DAY OFF (For information concerning the DAY OFF function, refer to p. 7, “OPERATING TIPS.”)

* Press the START/STOP button to stop the air conditioner, and then proceed as follows.

1

Select .

2

Select the number that corresponds to
the selected day indicated by a code
from 1 to 7.

3

(The “DAY OFF” caption appears on
the display.)
Stop the “DAY OFF” setting by press­ing the DAY OFF button again.

Perform steps 1 to 3 in “To set the WEEKLY timer.”

(P. 3)
Select the day to edit.

Change the time set­ting.

Repeat steps

2 to 4 to

change “WEEKLY 2” settings.
*If the settings are complete,

proceed to step

7.

Press the TEMP./DAY button to select another day

and repeat steps

2 to 5 to set the another day.

Perform steps

1 to 3 in “To set the WEEKLY timer.”

(P. 3)
Select the day to edit.

Press the TEMP./DAY button to select another day

and repeat steps

2 to 5 to set the another day.

Repeat steps

2 to 4 to change

“WEEKLY 2” settings.
*If the settings are complete,

proceed to step

8.

5

Press the SET button
twice.

* If the settings are

complete, proceed

to step

7.

*If the settings are

complete, proceed

to step

8.

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During cooling operation

When the ENERGY SAVE is
pressed, the thermostat setting
is automatically raised 1 °C every
60 minutes, until the thermostat
is raised a total of 2 °C.

27

25

26

Energy save

23

22

21

20

19

Energy save

8

5

OPERATING TIPS

Instructions relating to heating are applicable only to “HEAT & COOL MODEL” (Reverse Cycle).

During heating operation

When the ENERGY SAVE is
pressed, the thermostat setting
is automatically lowered 1 °C
every 30 minutes, until the ther­mostat is lowered a total of 4 °C.

60 min.

30 min.

30 min.

30 min.

NOTES

(1) In the following cases, cancel the set time prior to making the

required amendments.

1.If you want to change the ON time to a time that is later than
the currently set OFF time.

2.If the change would cause a temporary overlap between the
first and second ON/OFF time spans.

(2) The DAY OFF setting is only available for days for which weekly

time settings already exist.

(3) The Weekly setting for which an ON time has been set is eligi-

ble for the day in which the DAY OFF has been set.

OFF

WEEKLY 1

ON OFF

WEEKLY 2

ON

Temporary overlap

ON

OFF ON

WEEKLY 1

WEEKLY 2

OFF

Change

Tim e

Tim e

OFFON

Effective range of DAY OFF setting

OFFON

WEEKLY setting for

preceding day

WEEKLY setting

Preceding
day

DAY OFF
day

Next
day

0:00

0:00

Mode operation

AUTO:
COOLING ONLY MODEL

When the room temperature is 2 °C higher than the set tem­perature, the mode will switch between Cooling and Drying.

AUTO (AUTO CHANGEOVER):
HEAT RECOVERY MODEL

• When AUTO CHANGEOVER is selected, the air conditioner
selects the appropriate operation mode (Cooling or Heat­ing) according to your room’s present temperature.

• When the air conditioner has adjusted your room’s tem­perature to approach the set temperature, it will begin
monitor operation. In the monitor operation mode, the fan
will operate at low speed.

• When the room temperature is very low, frost may form
on the outside unit, and its performance may be reduced.
In order to remove such frost, the unit will automatically
enter the defrost cycle from time to time. During defrost­ing, the heating mode will be temporarily interrupted.
DEFROST will be shown on the remote controller display.

Fan speed

When set to AUTO (FAN speed) :

Heating: The fan will operate at very low speed when the tem-

perature of the air issued from the indoor unit is low.

Cooling: As the room temperature approaches that of the set

temperature, the fan speed becomes slower.

Fan: The fan alternately turns on and off; when on, the

fan runs at the low fan speed.

Anti freeze

When the room temperature drops to 5 °C or less, it auto­matically sets the fan to low speed and starts the heating op­eration.
This operation stops when the temperature in the room rises
above 8 °C.

Heating performance

• This air conditioner operates on the heat-pump principle,
absorbing heat from outdoor air and transferring that heat
indoors. As a result, the operating performance is reduced
as outdoor air temperature drops. If you feel that insuffi­cient heating performance is being produced, we recom­mend you use this air conditioner in conjunction with an­other kind of heating appliance.

• Heat-pump air conditioners heat your entire room by
recirculating air throughout the room, with the result that
some time may be required after first starting the air con­ditioner until the room is heated.

Energy save

• The energy conservation mode (ENERGY SAVE) raises the
set temperature slightly in the cooling mode and lowers
the set temperature in the heating mode to economically
control the operation of the unit.

• If you press the ENERGY SAVE button while the unit is in
the timer mode, the unit will go into the conservation mode
when the unit starts with the timer.

• If you turn off the air conditioner while in the conservation
mode, the mode will be shut off.

• The temperature set on the remote controller will not
change if the energy save mode is used.

OFF OFF

HEATING ON HEATING ON

En-7

Cooling/heating priority (HEAT PUMP MODEL only)

• If another indoor unit in the same system is already oper­ating in the cooling mode or dry mode, heating mode set­tings cannot be performed.

• If another indoor unit in the same system is already oper­ating in the heating mode, cooling mode or dry mode set­tings cannot be performed.

Oil recovery operation

Periodically, the oil recovery operation is performed in order
to return compressor oil to the outdoor unit. Operation is
stopped during this oil recovery operation. During oil recov­ery operation, DEFROST will be displayed on the remote
controller.

Setting restriction

When CENTRAL is displayed there are functions for which
settings cannot be made.

AUTO restart

Should the power supply to the air conditioner be interrupted
by a power failure, the air conditioner will restart automati­cally in the previously selected mode once the power is re­stored.

ERRORS AND SELF-DIAGNOSIS

Instructions relating to heating are applicable only to “HEAT & COOL MODEL” (Reverse Cycle).

If there is a problem with the air conditioner, it will stop running and “EE:EE” will be displayed.

If “EE:EE” is displayed, immediately contact authorized service personnel. Do not use the op­eration below if an error has not occurred.

TROUBLESHOOTING

Instructions relating to heating are applicable only to “HEAT & COOL MODEL” (Reverse Cycle).

1

If the operation lamp is on, press the
START/STOP button to turn it off.

2

Press SET TIME and TEMP./DAY but­tons at the same time for more than 3
seconds to start the self-diagnosis
check.

Error code

Remote controller address

3

Press the SET TIME and TEMP./DAY
buttons at the same time for more than
3 seconds to end the self-diagnosis
check.

Weekly timer

• Set different operating times for each day of the week.

• Set one or two operating spans (one or two ON times and

one or two OFF times) per day.

• Set time to a resolution of 5 minutes.

• OFF time can be carried over to the subsequent day.

• Use the “DAY OFF” setting to cancel operation for any day

of the coming week (one-time cancellation).

• The operation mode and the temperature can be set when
setting the ON time.

Day off

• Use the “DAY OFF” setting to switch off timed operation
for a selected day in the coming week.

• This is a temporary, one-time setting. The “DAY OFF” set-
ting is automatically cleared as soon as the specified day
passes.

WARNING!

If a problem (burning smell, etc.) occurs, turn off the electrical breaker immediately to stop operation, and then consult an
authorized service personnel.
Merely turning off the unit’s power switch will not completely disconnect the unit from the power source. Always be sure
to turn off the electrical breaker to ensure that power is completely off.

En-8

Symptom

Doesn’t operate immedi­ately:

Noise is heard:

Smells:

Mist or steam are
emitted:

Airflow is weak or stops:

Water is produced from
the outdoor unit:

CAUSE and ACTION

● If the unit is stopped and then immediately started again, the com­pressor will not operate for about 3 minutes, in order to prevent
fuse blowouts.

● Whenever the electrical breaker is turned off then on again, the
protection circuit will operate for about 3 minutes, preventing unit
operation during that period.

● During operation and immediately after stopping the unit, the
sound of water flowing in the air conditioner’s piping may be
heard. Also, noise may be particularly noticeable for about 2 to 3
minutes after starting operation (sound of coolant flowing).

● During operation, a slight squeaking sound may be heard. This is
the result of minute expansion and contraction of the panel due
to temperature changes.

● During Heating operation, a sizzling sound may be heard occa­sional. This sound is produced by the Automatic Defrosting op­eration.

● Some smell may be emitted from the indoor unit. This smell is
the result of room smells (furniture, tobacco, etc.) which have
been taken into the air conditioner.

● During Cooling operation, a thin mist may be seen emitted from
the indoor unit. This results from the sudden Cooling of room air
by the air emitted from the air conditioner, resulting in condensa­tion and misting.

● During Heating operation, the outdoor unit’s fan may stop, and
steam may be seen rising from the unit. This is due to Automatic
Defrosting operation.

● When Heating operation is started, fan speed is temporarily very
low, to allow internal parts to warm up.

● During Heating operation, if the room temperature rises above
the set temperature, the outdoor unit will stop, and the indoor
unit will operate at very low fan speed. If you wish to warm the
room further, set the set the temperature for a higher setting.

● During Heating operation, the unit will temporarily stop opera­tion (between 2 and 16 minutes) as the Automatic Defrosting mode
operates. During Automatic Defrosting operation,

DEFROST

will

be shown on the remote controller display.

● The fan may operate at very low speed when the unit is monitor­ing the room’s temperature.

● In the monitor AUTO operation, the fan will operate at very low
speed.

● During Heating operation, water may be produced from the out­door unit due to Automatic Defrosting operation.

See Page

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—

6

—

—

6

—

6

6

6

6

NORMAL

FUNCTION

SPECIFICATIONS

If the problem persists after performing these checks, or if you notice burning smells, stop operation immediately, turn off the
electrical breaker, and consult with authorized service personnel.

REMOTE CONTROLLER (WIRED TYPE)

MODEL POWER

DIMENSIONS & WEIGHT

HEIGHT [mm] WIDTH [mm] DEPTH [mm] WEIGHT [g]

UTB-

LB DC 12 V 120 120 14 130

Symptom

Doesn’t operate at all:

Poor Cooling (or Heating)
performance:

See Page

—

3 to 5

—

Items to check

● Has there been a power failure?

● Has a fuse blown out, or a circuit breaker been tripped?

● Is the main power switch set to the OFF position?

● Is the timer operating?

● Is the air filter dirty?

● Are the air conditioner’s intake grille or outlet port blocked?

● Did you adjust the room temperature settings (thermostat) cor-

rectly?

● Is there a window or door open?

● In the case of Cooling operation, is a window allowing bright sun-

light to enter? (Close the curtains.)

● In the case of Cooling operation, are there heating apparatus and
computers inside the room, or are there too many people in the
room?

CHECK ONCE

MORE

Before requesting service, perform the following checks: