High Wall, Heat Pump Type
Service Manual
41
Toshiba
8-8-2. Finish of Defrost
Operation
Returning conditions from defrost operation to heating
operation
1) Temperature of outdoor heat exchanger rises
to +8°C or higher.
2) Temperature of outdoor heat exchanger is kept
at +5°C or higher for 80 seconds.
3) Defrost operation continues for 15 minutes.
8-8-3. Returning from defrost
operation
1) The compressor stops for 40 seconds.
2) The 4-way valve is switched 30 seconds after
the compressor stops.
3) The outdoor fan starts rotating 30 seconds
after the compressor stops.
8-9. Louver Control
8-9-1. Louver Position
This function controls the air direction of the indoor unit.
• The position is automatically controlled according to
the operation mode (COOL/HEAT).
• The set louver position is stored in memory by the
microcomputer, and the louver returns to the stored
position when the next operation is performed.
(Cooling/heating memory position)
The angle of the louver is indicated as the horizontal
angle is 0°.
When the louver closes fully, it directs approx. 10°
upward.
Louver position in cooling operation
*1 When the indoor humidity is high (Hu sensor valve) 70%), the
compressor speed is 23 rps or more and the position of the louver
is less than 29°, the louver moves to 29° to prevent the air outlet
from dew drop.
And the louver can’t be move to less than 29°. When the indoor
humidity become low or the compressor speed become less than
23 rps, the louver returns to the storage position.
Louver position in heating operation
Louver angle
Horizontal
(0 )
Powerful
Cooling operation/AUTO (COOL)
Initial setting of "Cooling storage position"
Louver : Directs downward (23°)*1
"Cooling storage position"
Louver : Directs downward (34°)
Heating operation / AUTO (HEAT)
Powerful
Initial setting of "Heating storage position"
Louver : Directs downward (72°)
"Heating storage position"
Louver : Directs downward (58°)
"Cooling storage position"
Louver : Directs downward (23°)
"Heating storage position"
Louver : Directs downward (72°)
SLEEP MODE operation
In case that the following temperature is
obtained during 12 minutes or 12 to 25 minutes
from start of heating operation:
Room temperature (TA)
< Set temperature (Tsc) –3.0
In case that the following temperature is
obtained during 12 to 25 minutes from start
of heating operation:
Room temperature (TA)
Set temperature (Tsc) –3.0
or when 25 minutes or more passed from
start of heating operation.
+00A08-010_01EN_SVM_HighWallHeatPump.book Page 41 Wednesday, March 4, 2009 11:22 AM
