Toshiba MMU-P0121H Service Manual page 15

3-2-3. Correct Usage
When you use the air conditioner at the first time or when you change the set up value, follow the procedure
below. From the next time, the operation dis-played on the remote controller will start only by pushing ON/OFF
button.
Preparation
Turn on the power switch.
• The operation lamp (Red) flashes.
• While using the air conditioner, operate it only with ON/OFF button without turning off the main power switch.
• When starting the operation after stop for a long time, turn on the main power switch for 12 hours or more
before start. (This is required because it is necessary to turn on the compressor case heater for heating in
order to prevent overload on the compressor when activating the outdoor unit.)
1
Select an operation mode with the "MODE" button.
One push of the button, and the display changes as follows:
2
Select air volume with the "FAN" button.
One push of the button, and the display changes
as follows:
(Air volume cannot be selected in the concealed duct type.)
• When air volume is "AUTO", power of air differs according to
the room temperature.
3
Determine the set up temperature by pushing the
"TEMP." button.
4
Push "ON/OFF" button.
The operation lamp goes on, and the operation starts.
STOP
Push "ON/OFF" button.
The operation lamp goes off, and the operation stops.
*
"HEAT" is displayed on the Heat Pump model only.
In cooling
• When the operation button has been pushed, the operation starts approx.1minute after.
In heating
• When the operation button has been pushed, the indoor fan performs pre-heating operation for 3 to 5
minutes as it stops and then blows out hot air.
• While the room temperature has attained the set temperature and the outdoor unit stops, the super-low air
blows out and air volume becomes excessively small. During defrost operation, the fan stops so that cold
air does not blow out, and "PRE-HEAT" and "DEFROST" are displayed.
When restarting the operation after stop
In heating operation, the fan operation may continue for approx. 30 seconds after the machine has stopped.
• When restarting the operation immediately after stop, the air conditioner does not operate for approx. 3
minutes to protect the machine.
REQUIREMENT
NOTE
3-12
FAN COOL
LOW MED. HIGH
MODE FA N T E M P.
MODE
F A N
CHECK ADDRESS CHECK ADDRESS
1 2 1 2
C O O L C O O L
H E A H E AT AU TO
F I X
CENTRAL
MODE
FILTER CHECK
1
2
ON/OFF
*
HEAT
AUTO
UNIT UNIT ST STANDBY ANDBY
FILTER
PREHEAT PREHEA
DEFR DEFROST OST
LOUVER LOUVER
MANUAL AL MANU
3
4