U-Match Series DC Inverter Service Manual
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4.2 Low Temperature Drying Function
Under dry mode and when set temperature is 16℃, continuously press ▼ button for twice and then
the set temperature will be 12℃. In this case, the unit will enter low temperature drying function.
When low temperature drying function is turned on, press ▲ button or Mode button to exit low
temperature drying function.
4.3 Lock Function
When unit is turned on normally or turned off, pressing ▲ and ▼ buttons at the same time for 5s will
turn on Lock function. LCD will display . Pressing ▲ and ▼ buttons at the same time for 5s to turn off
this function.
When Lock function is turned on, any other buttons won‟t respond when pressing. The function can
be memorized after power failure and then power recovery.
4.4 Memory Function
Press Mode and ▲ buttons at the same time for 5s under off state of the unit to turn on or cancel
memory function. If memory function is set, is displayed. If not, indoor unit is defaulted to be
off after power recovery.
If memory function is set, indoor unit will resume original setting state after power failure and then
power recovery.
Note:
If cut off power with 5s after memorized content is changed, the memorized content may be
abnormal. Do not cut off power within 5s after memorized content is changed.
4.5 Door Control Function/Human Sensitive Function
Door control function or human sensitive function can be selected (More details please refer to
Debugging Function). These two functions can‟t be turned on at the same time.
When door control function is selected, the wired controller will work when the room card is inserted
and stop working when the room card is not inserted; when human sensitive function is selected, the
wired controller will work when it senses there is somebody in the room and stop working when it senses
there is nobody in the room. When the door control function senses the room card is not inserted or
human sensitive function senses there is nobody in the room, the wired controller will display icon.
Note:
⑤
In long-distance monitoring or centralized control, no matter the room card is inserted or not, the
ON/OFF of unit can be controlled. If long-distance monitoring or centralized control information is
received when the room card is not inserted, icon is cleared. When the card is reinserted,
door control function is judged to be turned on. If long-distance monitoring or centralized control
information is received when the room card is inserted, it will keep the original status.
⑥
The unit can not be controlled by buttons when the card is not inserted.
⑦
When door control function and human sensitive function have been set at the same time, it is
defaulted that door control function is valid and human sensitive function is invalid.
4.6 Switch between Fahrenheit and Centigrade
Under off state of the unit, press Mode and ▼ buttons at the same time for 5s to switch between
Fahrenheit and Centigrade.
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