Johnson Controls TIWM006B21S - 6. Automatic Control

P5417053-rev.1
31
NOTE
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If the space is large or the room temperature is excessively low, it takes time to heat the entire room.
If the room has been heated enough and discharged air reaches a required temperature, the indication
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Ɣ 7KHLQGLFDWLRQ“HOT-START” may be displayed during, or right after, the defrosting operation.
“HOT-START” is activated during defrost to ensure comfort by reducing the delivery of cold air in the
heating cycle. This is NOT abnormal.
6. Automatic Control
This air conditioner automatically starts the following operations according to the indoor conditions.
Three-Minute Guard
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The compressor remains off for at least three minutes once it has
stopped. If the system is started within approximately three minutes
after it has stopped, the RUN indicator is activated.
However, the cooling operation or the heating operation remains off
and does not start until after three minutes has elapsed.
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three minutes after the compressor has started, the compressor
operate continuously during those three minutes.
However, if all indoor units of the system are stopped by a controller,
compressor has stopped.
Cooling
and
Dry
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When the indoor unit is operating at a low discharge air temperature,
the cooling operation may be changed to fan operation for a while to
avoid frost formation on the indoor heat exchanger.
Self-Cleaning of
Expansion Valve
The expansion valve self-cleaning when the cooling operation has
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the indoor unit during the self-cleaning. This is not abnormal.
Condensate
Prevention
To prevent condensation, the unit operates with its louver at a different
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louver angle.
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during Power
Saving Control
When the power saving operation is performed, the louver control is
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The LCD on the wireless controller indicates it has not changed.
Heating
Hot Start
To prevent cold air discharge in the room, the fan speed is controlled
from the slow position and the low position and then to the set position
according to the discharge air temperature.
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displayed on the LCD of the wired controller.
Defrost Operation
The indoor unit fan operation is stopped to prevent cold air discharge
during the defrost operation. At this time, the indication “HOT-START”
is displayed on the LCD of the wired controller and the indoor unit fan
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Residual
Heat Removal
When the heating operation is stopped, the indoor fan operation may
remain at the slow speed for a maximum of two minutes to lower the
internal temperature of indoor unit.
Prevention
of Overload
Operation
When the outdoor temperature is high (approx. 70
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C) or more)
during the heating operation, the operation is stopped by activation of
the outdoor thermistor.
The system is equipped with the following functions.