Care And Maintenance; Points To Note - Toshiba RAS-300KSG Owners And Installation Manual

CARE AND MAINTENANCE

POINTS TO NOTE

Operating Condition
● Temperature ranges suitable for unit operation aer as follows.
Mode Indoor
21~32 ℃
COOL&DRY
Below 27 ℃
HEAT
● When the unit operates above or below these conditions for a long time, system
diagnostics may detect a malfunction and the unit will not operate properly.
● If the unit operates for a long time under abnormal situation of extremely high
humidity, condensed water may drip from the unit.
Time Delay
● If the operating mode changes from COOL or DRY to HEAT, there will be 3
minutes~3 minutes 15 sec time delay between compressor turning off and
turning on including starting the heat operation.
● If the operating mode changes from Heat to Cool and Dry, there will be 3
minutes~3 minutes 15 sec time delay
● When heating operation starts, hot air delivery might be delayed due to a warm
up period.
Minimum Operation Time
● In normal operation, thers is a minimum operation time of 3 minutes between
compressor turning on and turning off.
Defrost Operation (For Heat Pump Model)
● In the heating mode, when the outdoor coil is frosted, the indoor fan and outdoor
fan will turn off while the comperssor will turn on to remove the frost on the
outdoor coil.
● The defrost mode stops after 5 minutes 20 sec or 9 minutes 40 sec according to
outdoor coil status or when compressor operates according to preset condition.
● When the power is off, the defrost operation is automatically conducted to
eliminate frost accumulation on the outdoor coil.
16
Outdoor
Cooling only Heat pump
21~52 ℃ 21~52 ℃
-10~24 ℃
-
Auto recovery Operation (Field selection)
● When the electricity fails while the unit is operating, the unit memorizes the
operating condition, and it will restart operation automatically when the electricity
is restored.
● When you leave home during an electricity failure, please unplug the power
cord, otherwise the unit may automatically restart in your absence.
● This function is field selectable by pressing the 'Remote' button upto field
requirements. Default from the factory is to have this function but it can be
selected.
Frost Prevention of indoor Unit
When the unit is operates at a low ambient temperature, frost may appear on the
indoor coil. When the indoor coil temperature is below 0
makes the compressor stop to protect the unit from frost.
Normal Operation
Any of the following can occur during normal operaiton:
● A sound like a "GURGLE" can sometimes be heard during operation or when
the unit stops.
- It is the sound of the refrigerant flowing through the unit.
● Bad smells can come from the unit.
- Smells such as smoke or cosmetics can accumulate while room air circulates
through the unit.
- Cleaning the filters will reduce this problem.
● UNIT ON lamp on the indoor unit displays flashes and no air comes from the unit.
- It indicates malfunction of the unit and the compressor will stop operating.
● A "BAK-BAK" sounding noise can sometimes be heard during operation or
when the unit turns on.
- It is the sound of plastic expanding due to an abrupt temperature change.
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