21
Technical Information
Service Manual
L
A
B
C
D
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 Land D and stop at any position between L
and D (angles between L and D are equiangular). 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.
Upon energization, the unit will display all icons. Under standby state, running indicating mark is displayed in red. If the unit
is started by remote controller, running indicating mark gives off light; meanwhile, the mark of current running mode will be
displayed (mode LED: cooling, heating and dry mode). If the light button is turned off, no mark will be displayed.
0°
ĸ
Display of Dual-8 Nixie Tube
ķ
Operation and Mode Icons
For the first time of startup , the indoor unit defaults to display present set temperature (16
̚
30 ).Then if set temperature
ć
display is set by remote controller, it will display set temperature and if room temperature display is set, it will display room
temperature. After that, if you operate the remote controller for other settings, the temperature display method will keep
original. If you operate the remote controller during room temperature display, the set temperature will be displayed for 5
seconds firstly and then room temperature display returns. “F1” will be displayed upon malfunction of room temperature
sensor, “F2” upon malfunction of indoor unit tube temperature sensor and “C5” upon malfunction of jumper cap.
For some models, if set temperature display is set by the remote controller, present set temperature will be displayed. After
that, when you set room temperature display from set temperature display or outdoor temperature by the remote controller,
the room temperature will be displayed for 5 seconds firstly and then set temperature display returns.
(10) Locked protection to PG motor
(9) Display
When starting the fan, if motor’s rotational speed is slow for a period of time, the unit will display locked and stop running to
avoid auto protection for motor. If the unit is at on status currently, error code H6 will be displayed on the nixie tube. If the
unit is off currently, this locked malfunction information won’t be displayed.
(11)Memory Function
Memory content includes mode, up & down swing, light, set temperature and set fan speed, general timer (clock timer can’t
be memorized), Fahrenheit/Centigrade..
Upon power failure, the unit after power recovery will automatically start operation according to memorized content. The
unit, without timer setting before power failure, will operate according to the last setting after power recovery. The unit, with
general timer setting which has not been fulfilled before power failure, will memorize the time setting and re-calculate the
time after power recovery. If there is timer function in the last remote controller command but setting time has reached, the
system will act as timer on/off setting before power failure. After power failure, the system memorizes the operation states
before power failure without timer action. Clock timer can not be memorized.
4. Special Functions
(1) HEALTH Function (optional)
During operation of indoor unit fan, press HEALTH button on the remote controller to start health function (If there is not
HEALTH button on the remote controller, the unit defaults to HEALTH function ON).
(2)
I FEEL function
If the controller receives I FEEL command, it will operate according to the ambient temperature sent by the remote
controller (except defrosting and anti-cold air operation, during which it will operate according to the ambient temperature
sensed by the air conditioner). The remote controller will send the ambient temperature value to the controller every a
period of time. If the controller has not received the value for a long time, it will operate according to air conditioner’s
sensed temperature. If this function is not set, the ambient temperature is sensed by the air conditioner’s temperature. This
function won’t be memorized.
