Toshiba MMU-AP0151MH サービスマニュアル

1

1. Distinction of outdoor unit

When the power supply is reset, the outdoor units are
distinguished, and control is exchanged according to the
distinctive results.

2. Check code clear

When the power supply is reset, the check code is also reset
once. If an abnormal status which the check code appears
after Start/Stop button of the remote controller has been
pushed continues, the check code is displayed again on the
remote controller.

Power supply
is reset.

STOP

FAN

COOL

DRY

HEAT

COOL/HEAT AUTO

Stops air conditioner.

Fan operation

Cooling operation

Dry operation

Heating operation

COOL/HEAT AUTO operation

1. Based upon the operation select command from the remote

controller or central controller, the operation mode is se-
lected.

2

Operation
select

3

1. Adjustment range, set temperature on remote controller (°C)

Wired type

Wireless type

18 to 29°C

18 to 30°C

18 to 29°C

16 to 30°C

2. From the item code 06, the setup temperature in heating

operation can be corrected.

Setup data

Setup temp. correction

0

2

4

6

+0°C

+2°C

+4°C

+6°C

Setup at shipment

Setup data

2

Room temp.
control

Heating suction temperature
shift

4

Automatic
capacity
control

1. Based upon difference between Ta and Ts, the operation

frequency is indicated to the outdoor unit.

TS: Set temperature
Ta: Room temperature

Air volume
control

5

1. By the command from the remote controller, “HIGH 

 ”,

“MED 

 ”, or “LOW 

 ” and “AUTO 

 ” operation is

executed.

2. While air speed is in AUTO mode, the air speed is changed

according to the difference between Ta and Ts.

Heating operation is automatically selected with difference
between setup temperature and room temperature.