Toshiba MMU-UP0051MH-E, User Manual

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8

Applicable controls

REQUIREMENT

When the air conditioner is used for the first time, it will 
take some moments after the power has been turned on 
before the remote controller becomes available for 
operations: This is normal and is not indicative of trouble.
• Concerning the automatic addresses (The automatic 

addresses are set up by performing operations on the 
outdoor interface circuit board.)
While the automatic addresses are being set up, no 
remote controller operations can be performed. Setup 
takes up to 10 minutes (usually about 5 minutes).

• When the power is turned on after automatically 

address setup, it takes up to 10 minutes (usually about 
3 minute) for the outdoor unit to start operating after 
the power has been turned on.

Before the air conditioner was shipped from the factory, 
all units are set to [STANDARD] (factory default). If 
necessary, change the indoor unit settings.
The settings are changed by operating the wired remote 
controller.
* The settings cannot be changed using only a wireless 

remote controller and simple remote controller by itself 
so install a wired remote controller separately as well.



Applicable controls setup 
(settings at the site)

Remote controller model name:
RBC-ASCU11-

Basic procedure

Be sure to stop the air conditioner before making 

settings.

(Change the setup while the air conditioner is not 

working.)

CAUTION

CAUTION

Set only the Code No. shown in the following table: Do 
NOT set any other Code No.
If a Code No. not listed is set, it may not be possible to 
operate the air conditioner or other trouble with the 
product may result.

1

Push and hold menu button and [

] setting 

button simultaneously for 10 seconds or 
more. 

• After a while, the display flashes as shown in the 

figure. "ALL" is displayed as indoor unit numbers 
during initial communication immediately after the 
power has been turned on.

3,6

4,5 1

7

2,4,5

Indoor unit No.

2

Each time [

] [

] setting button is pushed, 

indoor unit numbers in the group control 
change cyclically. Select the indoor unit to 
change settings for.

• The fan of the selected indoor unit runs and the 

louvers start swinging. The indoor unit can be 
confirmed for which to change settings.

3

Push OFF timer button to confirm the 
selected indoor unit.

4

Push the menu button to make Code No. 
[

] flash. Change Code No. [

] with  [

] 

[

] setting button.

5

Push the menu button to make Set data 
[

] flash. Change Set data [

] 

with  [

] [

] setting button.

6

Push OFF timer button to complete the set 
up.

• To change other settings of the selected indoor 

unit, repeat from Procedure 

4

.

7

When all the settings have been completed, 
push ON/OFF button to finish the settings. 
(Return to the normal mode) 

"

" flashes and then the display content 

disappears and the air conditioner enters the 
normal stop mode. (The remote controller is 
unavailable  while "

" is flashing.)

• To change settings of another indoor unit, 

repeat from Procedure 

1

.



Installing indoor unit on high 
ceiling

When an indoor unit is installed on a ceiling higher than 
the standard height, make the high ceiling setting for 
fan speed adjustment.
Follow to the basic operation procedure 
(

1

→

2

→

3

→

4

→

5

→

6

→

7

).

• Specify 

[5d]

 for the Code No. in Procedure 

4

.

• Select the set data for Procedure 

5

 from the “Height 

list of ceiling possible to be installed” table in this 
manual.

Remote controller-less setting

Change the high-ceiling setting with the DIP switch on 
the P.C. board.
* Once the Set data has been changed, though it can 

be freely set to 0001 or 0003, to reset it to 0000 

(factory default), it need changing using remote 

controller (sold separately). After set data change, 

an air conditioner is operated. After setting has been 

completed, restart the air conditioner.



To restore the factory defaults

To return the DIP switch settings to the factory defaults, 
set SW501-1 and SW501-2 to OFF, connect a 
separately sold wired remote controller, and then set 
the data of Code No. [5d] to “

0000

”.

Set data

Code No.

Set data

 Ceiling height

0000

Standard 

(Factory default)

0001

High ceiling (1)

0003

High ceiling (3)

Set data

 Ceiling height

SW501-1 SW501-2

0000

Standard 

(Factory default)

OFF

OFF

0001

High ceiling (1)

ON

OFF

0003

High ceiling (3)

OFF

ON

SW501-2
SW501-1

MCU
(IC501)

35-EN

36-EN