Fujitsu UTY-DMMUM Operating Manual

CENTRAL REMOTE CONTROLLER

UTY-DMMUM

OPERATING MANUAL

English

KEEP THIS OPERATION MANUAL FOR FUTURE REFERENCE

P/N9380221005

Contents

7. FUNCTION SETTING

1. INTRODUCTION

1-1. Safety precautions ...............................................2

1-2. Features and functions ........................................2

1-3. Name of parts .......................................................3

1-3-1. About the Display panel ......................................3

1-3-2. About the Screen switch button (Left/Right) ........3

1-3-3. About the Menu button ........................................4

1-3-4. About the Cancel button ......................................4

1-3-5. About the Cursor button ......................................4

1-3-6. About the Enter button ........................................4

1-3-7. About the Power indicator ...................................4

1-3-8. About the On/Off button ......................................4

2. INITIALIZATION

2-1. Initial settings

(When starting for the  rst time).........................5

3. PREPARATION

3-1. Turning on the power ...........................................7

3-2. Checking the time ................................................7

3-3. About the key lock ...............................................8

4. MONITOR SCREEN

4-1. About the Monitor screen ....................................8

4-1-1. Operation mode display ......................................8

4-1-2. Indoor units display .............................................9

4-1-3. Function display ..................................................9

4-1-4. Setting menu .......................................................9

5. ON/OFF BUTTON OPERATION

5-1. Operation with On/Off button ............................10

6. OPERATION SETTING

6-1. About the Operation setting ..............................10

6-2. Switching to the “Operation” screen ...............11

6-2-1. Operation/setting of all indoor units at once ...... 11

6-2-2. Operation/setting of each indoor unit ................ 11

6-3. Operation setting................................................12

6-3-1. On/Off operation ................................................12

6-3-2. Operation mode setting .....................................12

6-3-3. Room temperature setting.................................13

6-3-4. Fan speed setting..............................................13

6-3-5. Minimum heat setting ........................................13

6-3-6. Economy setting................................................14

7-1. About the Function setting................................14

7-2. Switching to the “Function” screen .................14

7-3. Function setting .................................................15

7-3-1. Minimum heat (All) setting.................................15

7-3-2. Economy (All) setting ........................................15

7-3-3. Outdoor unit low noise operation setting ...........16

7-3-4. Schedule select .................................................17

8. SCHEDULE SETTING

8-1. About the Schedule setting ...............................18

8-1-1. About the Schedule name .................................18

8-1-2. About the setting of the time and operations.....18

8-2. Switching to the “Schedule” screen ................18

8-2-1.

Setting of the same schedule for all indoor units

8-2-2. Setting of the schedule for each indoor unit ......18

8-3. Schedule setting ................................................19

8-3-1. Selection of schedule name ..............................19

8-3-2. Setting of Enable/Disable of schedule ..............19

8-3-3. Selection of the day of the week .......................20

8-3-4. Setting of the time and operations ....................20

9. SUBMENU SETTING

9-1. About the Submenu setting ..............................22

9-2. Switching to the “Submenu” screen ................22

9-3. Date/Time setting ...............................................23

9-3-1. Date setting .......................................................23

9-3-2. Time setting .......................................................23

9-3-3. Summer time (Daylight saving time) setting......24

9-3-4. Change display format setting...........................24

9-4. Screen setting ....................................................25

9-4-1. Automatic off time setting ..................................25

9-4-2. Brightness setting .............................................25

9-4-3. Contrast setting .................................................25

9-5. R.C. prohibition setting......................................26

9-6. Initial setting .......................................................27

9-6-1 Language setting...............................................27

9-6-2. Temperature unit setting....................................27

10. OTHERS

10-1. Troubleshooting ...............................................28

10-2. Error code .........................................................28

.....18

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1. INTRODUCTION

1

1-1. Safety precautions

The “SAFETY PRECAUTIONS” indicated in the manual con-•
tain important information pertaining to your safety. Be sure
to observe them.
For details of the operation methods, refer to the operating •
manual.
Request the user to keep the manual on hand for future use, •
such as for relocating or repairing the unit.

• Do not use re near this unit or place a heating apparatus
nearby. It may cause malfunction.

• Do not touch the switches with sharp objects. Doing so
will cause injury, trouble, or electric shock.

• Do not insert articles into the slit parts of this unit. Doing
so will cause trouble, heating, or electric shock.

1

1-2. Features and functions

This mark indicates procedures

WARNING

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

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

• Do not repair or modify any damaged cable by your self.
Let the authorized service personnel to do it. Improper
work will cause an electric shock or a re.

• This unit contains no user-serviceable parts. Always
consult authorized service personnel for repairs.

• When moving, consult authorized service personnel for
disconnection and installation of this unit.

• Do not touch with wet hands. It may cause an electric
shock.

• If children may approach the unit, take preventive
measures so that they cannot reach the unit.

• Do not repair or modify by yourself. It may cause a fault
or accident.

• Do not use ammable gases near the unit. It may cause
a re from leaking gas.

This mark indicates procedures which,

CAUTION

if improperly performed, might possibly
result in personal harm to the user or
damage to property.

• Do not set vessels containing a liquid on this unit. Doing
so will cause heating, re or electric shock.

• Do not expose this unit directly to water. Doing so will
cause trouble, electric shock or heating.

• Dispose of the packing materials safely. Tear and dispose
of the plastic packing bags so that children cannot play
with them. There is the danger of suffocation if children
play with the original plastic bags.

• Do not place electrical devices within 1 m (3.3 ft) of this
unit. It may cause malfunction or failure.

1

MINIMUM HEAT OPERATION

To avoid too much decrease of temperature in the room, it is
operated to prevent the room temperature dropping below
50°. When normal operation starts, the minimum heat opera­tion stops.

1

ECONOMY OPERATION

Operation of the indoor units in economy mode, which saves a
little power, reduces energy use more than normal operation.
If the room is not cooled (or heated) well during economy op­eration, select normal operation.

1

ALL MINIMUM HEAT OPERATION

While this function is selected, all indoor units start the mini­mum heat operation when all the indoor units are stopped by
operation of the [On/Off button] on the Central remote control­ler.

1

ALL ECONOMY OPERATION

If all the indoor and outdoor units are changed to economy
mode, this can save more energy than setting of each indoor
unit individually.

11

OUTDOOR UNIT LOW NOISE OPERATION

The outdoor units are operated to reduce noise during the
preset hours, such as at night.

1

SCHEDULE TIMER OPERATION

Operating automatically in accordance with the preset weekly
schedule. Different schedule can be set for each indoor unit.

11

REMOTE CONTROLLER PROHIBIT

It prohibits operation of the standard remote controller (at­tached in the indoor unit). It can prevent operation of a remote
controller, such as the remote controller fixed to a wall, by
children or outsiders.

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]1

1-3. Name of parts

CAUTION

• Press the button lightly with a finger. It may cause a
failure if pressed with excessive force.

• Do not press the screen too hard. It may cause a failure.

Ex.) “Function” screen

Function

Mo 10:00AM

Min.heat (All) Disable

Economy (All)

O.U. low noise

Schedule select

Back:

Setting:

Disable

Disable

Schedule 1

Operation Schedule

(1)

(2)

(3)

(4)

(6)

(7)

(8)

(5) (9)

(1) Display panel (with backlight) ......................... (See 1-3-1.)

(2) Screen switch button (Left) ............................ (See 1-3-2.)

(3) Menu button ................................................... (See 1-3-3.)

(4) Cancel button ................................................. (See 1-3-4.)

(5) Cursor button ................................................. (See 1-3-5.)

(6) Screen switch button (Right) .......................... (See 1-3-2.)

(7) Power indicator .............................................. (See 1-3-7.)

(8) On/Off button .................................................. (See 1-3-8.)

(9) Enter button .................................................... (See 1-3-6.)

1-3-1. About the Display panel

Display may change depending on the operation or setting.

·

This can set the brightness, contrast and automatic light-off

·

time of the backlight. Refer to [9. SUBMENU SETTING].

This product uses a Bitmap font made and developed by
Ricoh Co.,Ltd.

1-3-2. About the Screen switch button

(Left/Right)

While the screen name or setting items are displayed in the

·

black field under the screen, the screen can be switched
to that screen by pressing the Screen switch button (Left/
Right).

Ex.) “Operation” screen

Operation
Room 1

On-Off

Off

Cancel:

Screen switch

button (Left)

Mode

Cool

OK:

Fan/Min.heat/Economy

Mo 10:00AM

Set temp.

78

Screen switch
button (Right)

°F

Notice

While the backlight is off by the automatic light-off, the
 rst button operation does not work and the backlight
illuminates.
While the backlight is set to “Off”, it is effective from the
 rst button.

Ex.) “Monitor” screen

Monitor

Room 1
Room 4

Cool

Room 7 Room 8

All

Economy

Min.heat

Menu

Operation

En-3

Room 2 Room 3
Room 5 Room 6

All

O.U.

Low noise

Function

Schedule

Mo 10:00AM

RC prohibit

Schedule

Operation
Room 1

Fan

Min.heat

Off Off

High

Cancel:

OK:

On-Off/Mode/Set temp.

Mo 10:00AM

Economy

1-3-3. About the Menu button

1-3-6. About the Enter button

This button is pressed while the “Monitor” screen is

·

displayed, it switches to the “Submenu” screen. For the
details, refer to [9. SUBMENU SETTING].

Submenu

Monitor:

Date/Time

R.C. prohibit

Setting:

Screen

Initial

Mo 10:00AM

1-3-4. About the Cancel button

When this button is pressed while setting, the setting is

·

canceled and returns to the previous screen.

When this button is pressed after setting (or before setting),

·

returns to the previous screen.

The operation when pressing the [Cancel button] is displayed

·

in the lower left of each setting screen.

While setting

This is used for the decision of a selected item or con rming

·

the setting.

The operation when pressing the [Enter button] is displayed

·

at the lower center of each setting screen.

Before setting (or after setting)

Back:

Setting:

XXXXXX XXXXXX

While setting

Cancel:

OK:

XXXXXX XXXXXX

Note

In the operation setting, “OK” blinks when set or changed.

Notice

When switching to another set screen or “Monitor”
screen before the setting is completed, the cancel
confirmation screen is displayed. When canceling the
set, select “Yes” in the [Cursor button (Left/Right)] and
press the [Enter button].

Cancel:

OK:

XXXXXX XXXXXX

After setting (or before setting)

Back:

Setting:

XXXXXX XXXXXX

1-3-5. About the Cursor button

This is used for the selection of a setting item or the setting

·

of set items.

Up

Left

Right

Down

Notice

Press the marked part. It doesn't respond correctly when
diagonally operating it.

]

Setting change will be canceled. OK?

No

Yes

1-3-7. About the Power indicator

This indicator illuminates when one indoor unit or more is

·

operating (Green). It turns off when all indoor units stop.

Notice

An error has occurred when the Power indicator blinks.
Refer to [10. OTHERS].

1-3-8. About the On/Off button

This button switches the air conditioner On/Off. Refer to [5.

·

ON/OFF BUTTON OPERATION].

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2. INITIALIZATION

1

2-1. Initial settings

(When starting for the  rst time)

CAUTION

• To protect the compressor, turn on the power of the air
conditioning system 12 hours or more before the start of
operations.

Starting the air conditioning system immediately after

power on may cause a failure.

The “Language” screen is displayed, when the start

3

up is completed normally. The display language of this
product is only English. Pressing the [Enter button].

Language

English

OK:

Notice

Below description is the initial setting of the Central Re­mote Controller when starting for the  rst time. Screen
switch method is different from the initial setting except
when starting for the  rst time. (Refer to [9. SUBMENU
SETTING]).

Follow the below procedure for the application of power after
the installation and wiring are all completed.

1

(1) Power on the connected outdoor units.
(2) Power on all connected branch boxes.
(Central Remote Controller starts).

Indoor units are registered automatically while activate.

2

Please wait

Notice

When below error screen blinks, communication be­tween the Central Remote Controller and the air condi­tioning system is not performed.

When [Enter button] is pressed, the “Temp. unit” screen

is displayed.

Switch the unit for temperature “°C” or “°F” with [Cursor

4

button (Up/Down)].
(When [Cancel button] is pressed, it returns to the
“Language” screen.)

Temp. unit

Temp. unit

°F

Cancel: OK:

When [Enter button] is pressed, the “Date” screen is

displayed.

Set the “Day”, “Month” and “Year”.

5

Switch the setting item with [Cursor button (Left/Right)],

and set with [Cursor button (Up/Down)].

(When [Cancel button] is pressed, it returns to the

“Temp. unit” screen.)

Date

Error
code: 12

All power supplies are turned off, and re-check the con­nection of the Central Remote Controller.

En-5

Day Month Year

01 / 01 / 2010

Friday

Cancel: OK:

When [Enter button] is pressed, the “Time” screen is
displayed.

Set the “hour” and “min”.

6

Switch the setting item by [Cursor button (Left/Right)],
and set with [Cursor button (Up/Down)].
(“Min” can be set quickly if the button is pressed con­tinuously.)

(When [Cancel button] is pressed, it returns to the “Date”
screen.)

Time

When setting is completed, select “Yes” with [Cursor

8

button (Left/Right)], and press [Enter button].

When correcting a setting, set it again as it returns to
the “Language” screen when “No” is selected and press
[Enter button].
(If no correction, proceed to the next setting by press­ing the [Enter button] without modi cation.)

hour min

10: 00

Cancel: OK:

When [Enter button] is pressed, the “Change display
format” screen is displayed.

AM

Notice

Set the standard time here even for summer time (day­light saving time). Another setting will be made sepa­rately. Refer to [9. SUBMENU SETTING].

Set the display format of “Date format” and “Time for-

7

mat”. Switch the setting item with [Cursor button (Left/
Right)] and con rm with the [Cursor button (Up/Down)].

(When [Cancel button] is pressed, it returns to the “Time”

screen.)

Change display format

Date format

Time format

Initial setting will be ended. OK?

No

Initial setting for start-up the  rst time completes when

9

[Enter button] is pressed and the “Monitor” screen is
displayed after completion of operation.

Monitor

Off

Room 1
Room 4

Room 2 Room 3
Room 5 Room 6

Yes

Fr 10:00AM

Room 7 Room 8

Menu

Operation

After the test operation, advise the location of each

indoor unit to the users.

Room 1

Function

Schedule

00:00–11:59 AM/PMDay/Month/Year

Cancel: OK:

Note

Following display formats are available for setting.

Date format: Time format:

• Day/Month/Year • 00:00-23:59

• Month/Day/Year • 00:00-11:59 AM/PM

• Year/Month/Day • 12:00-11:59 AM/PM

When [Enter button] is pressed, the “Confirmation”

screen is displayed.

Room 2

Room 3

Room 4

Room 5

Room 6

Room 7

Room 8

Notice

The display number of the indoor units might be skipped
according to the indoor units connection layout.

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3. PREPARATION

1

CAUTION

• To protect the compressor, turn on the power of the air
conditioning system 12 hours or more before the start of
operation.

Starting the air conditioning system immediately after

power on may cause a failure.

• Always turn off the breaker when cleaning the remote
controller, air conditioner, or  lter.

It may cause injury if operation starts during cleaning.

Notice

Following error message blinks on the Display panel if
power on of the outdoor unit is forgotten or the power to
the indoor units is disconnected.

Error
code: 12

1

3-1. Turning on the power

When turning on the power after the power is cut off during
the off season, follow the below procedure.

(1) Power on the connected outdoor units.

1

(2) Power on all connected branch boxes.
(The Central Remote Controller starts).

Connection of air conditioning system is checked

2

during start-up.

Please wait

When the start-up is completed normally, “Monitor”

3

screen is displayed on the Display panel of the Central
Remote Controller and the system maintains the stand­by status.

Refer to [4. MONITOR SCREEN] for the “Monitor”

screen.

Refer to [6. OPERATION SETTING] for operation of the

air conditioner.

In this case, immediately cut off all the power and power
on again.

Note

To start the operation smoothly, it is recommended

·

to not cut off the power of the air conditioning system
during the on-season except for cleaning or a fault.

During minimum heat operation, do not cut off the

·

power to the air conditioning system even if leaving
home for a long time.

1

3-2. Checking the time

Check that the current time is displayed correctly on the screen.
(Ask the installer to set the correct time when installing.)
If changing the time or switching the setting for summer time
(daylight saving time), follow the instructions in [9. SUBMENU
SETTING].

Monitor

Off

Menu

Operation

Room 1
Room 4

Room 2 Room 3

Room 5 Room 6

Room 7 Room 8

Function

Mo 10:00AM

Schedule

Monitor

Off

Room 1
Room 4

Room 2 Room 3

Room 5 Room 6

Room 7 Room 8

Menu

Operation

Function

En-7

Mo 10:00AM

Schedule

1

f

3-3. About the key lock

A locking function is provided to prevent careless operation
by children or outsiders. Release the lock on the “Monitor”
screen when operating. Refer to [4. MONITOR SCREEN] for
the “Monitor” screen.

4. MONITOR SCREEN

1

1

4-1. About the Monitor screen

Setting status of functions or operating status of each indoor
unit is displayed. This is the basic screen of this control unit.

Monitor

Off

Room 1
Room 4

Room 2 Room 3

Room 5 Room 6

Mo 10:00AM

Room 7 Room 8

Key lock

To lock up:
When the [Cancel button] is pressed for 2 seconds or more
continuously on the “Monitor” screen, all keys are locked, and
“Key lock” is displayed on the screen.

To release the lock:
When the [Cancel button] is pressed for 2 seconds or more
continuously on the “Monitor” screen, the lock is released,
and “Key lock” displayed on the screen turns off.

Cancel button

Note

“Key lock” display blinks when operating it while locked.

Schedule

Mo 10:00AM

RC prohibit

Monitor

Cool

All

Min.heat

Room 1
Room 4

Room 2 Room 3
Room 5 Room 6

Room 7 Room 8

All

Economy

O.U.

Low noise

Menu

Operation

Function

Schedule

4-1-1. Operation mode display

Schedule

Schedule

Mo 10:00AM

RC prohibit

Monitor

Room 1
Room 4

Cool

Room 7 Room 8

All

Economy

Min.heat

Room 2 Room 3
Room 5 Room 6

All

O.U.

Low noise

Menu

Operation

Operating mode is displayed with marks. When all the indoor
units are stopped, “Off” is displayed.
Refer to [6. OPERATION SETTING] for operation mode set­ting.

Function

Marks of the operation mode

Of

Auto Cool Dry Fan Heat Min.heat All-off

Note

When multiple modes are operated at the same time,
the following are displayed.

Operation mode Displayed mark

“Cool” and Dry, Auto and/or Fan

“Dry” and Auto and/or Fan

“Auto” and Fan

“Heat” and Auto

“Min heat”

Cool

Dry

Auto

Heat

Min.heat

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