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Service Manual
When multiple malfunctions occurred simultaneously, malfunction protection codes will be displayed in cycle.
3.Other Control Target
(1) Up&down swing function: the mode for swing motor is MP28VB(18K),MP35XX(24K).
air outlet.
If swing function has not been set after startup of the unit, up & down horizontal louver will clockwise turn to position
D in HEAT mode, or clockwise turn to level position L in other modes.
If setting swing function while starting up the unit, the horizontal louver will swing between L and D.
There are 7 kinds of swing status of horizontal louver: Positions L, A, B, C and D, swing between L and D and stop at
any position between L and D.
Upon turning off the unit, the horizontal louver will close at position 0. Swing function is available only when swing
function set and indoor fan is operating.
Note: If the position is set between L and B, A and C or B and D by remote controller, the horizontal louver will swing between L and D.
L----A----B----C----D
L
（
0
℃）
o
(2) Buzzer
Upon energization and operation, the buzzer will give out sound.
(3) Auto Button
After pressing this button, the unit will operate in auto mode. Indoor fan will operate at auto fan speed and swing motor will operate. Press
this button again to turn off the unit. The complete unit is energized when pressing the button and the complete unit will enter into fast
testing status. After energization, if its detected that the auto button is pressed down and the complete unit is at fast testing status, the fast
testing status will be exited.
(4) Sleep Function
This mode is only valid in cooling and heating mode. The unit will select the appropriate sleeping curve to operate according to the different
setting temperature.
During cooling mode:
(1) When the initial temperature is set as 16~23
o
C, after starting up the sleep function, the temperature will increase by1
o
C every one hour.
After the temperature has increased by 3
o
C, the unit will keep this temperature. When the unit has operated for 7 hours, the temperature
will decrease by 1
o
C and then the unit will operate at this temperature all the time;
(2) When the initial temperature is set as 24~27
o
C, after starting up the sleep function, the temperature will increase by1
o
C every one hour.
After the temperature has increased by 2
o
C, the unit will keep this temperature. When the unit has operated for 7 hours, the temperature
will decrease by 1
o
C and then the unit will operate at this temperature all the time;
(3) When the initial temperature is set as 28~29
o
C, after starting up the sleep function, the temperature will increase by1
o
C every one hour.
After the temperature has increased by 1
o
C, the unit will keep this temperature. When the unit has operated for 7 hours, the temperature
will decrease by 1
o
C and then the unit will operate at this temperature all the time;
(4) When the initial temperature is set as 30
o
C, the unit will operate at this temperature. After the unit has operate for 7hours, the
temperature will decrease by 1
o
C and then the unit will operate at this temperature all the time.
During Heating Mode:
(1) When the initial temperature is set at 16
o
C, the unit will operate at this temperature all the time;
(2)When the initial temperature is set as 17~20
o
C, after starting up the sleep function, the temperature will decrease by1
o
C every one hour.
After the temperature is decreased by 1
o
C, the unit will operate at this temperature;
(3)When the initial temperature is set as 21~27
o
C, after starting up the sleep function, the temperature will decrease by1
o
C every one hour.
After the temperature is decreased by 2
o
C, the unit will operate at this temperature;
(3)When the initial temperature is set as 28~30
o
C, after starting up the sleep function, the temperature will decrease by1
o
C every one hour.
After the temperature is decreased by 3
o
C, the unit will operate at this temperature;
General timer and clock timer functions are compatible by equipping different functions of remote controller.
(5) Timer Function
General timer and clock timer functions are compatible by equipping different functions of remote controller.
General timer:
Timer ON:
If timer ON is set during operation of the unit, the unit will continue to operate. If timer ON is set at unit OFF, upon ON time reaches the unit
will start to operate according to previous setting status.
Timer OFF:
If timer OFF is set at unit OFF, the system will keep standby status. If timer OFF is set at unit ON, upon OFF time reaches the unit will stop
operation.
A
B
C
D
(1) Timer ON:
If Timer ON is set when the system runs,it will continue to run;if Timer ON is set when the system is off,the system will start to run in the original
setting mode when timer on time is reached.
(2) Timer OFF:
If Timer OFF is set when the system is off,the system keeps stand-by status;if Timer OFF is set when the system is on,the system stops when
reaching timer off time.
Clock timer
