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2. Display state of indoor indicators
(1) State of indoor display board
1. When the unit is powered on, all patterns will be displayed and then only power indicator is on. When the unit is turned on
with a remote controller, the operating indicator is on and operation mode which is set currently is displayed.
2. In defrosting mode, "H1" is displayed on "Double 8".
3. Set temperature is displayed on "Double 8".
Display of operation patterns and mode patterns
When the unit is powered on, all patterns will be displayed and the standby operation indicator will become red. When the unit
is turned on through a remote controller, the operation indicator is light. At the same time, operating mode patterns (mode
indicators include cooling, heating and dehumidification modes) set currently are displayed, and dynamic display patterns of
wind speed are displayed. If the light button is switched off, all display will be turned off.
Temperature display control mode of separated air conditioner
1. When user sets the remote controller at set temperature display, currently set temperature will be displayed.
2. Only when remote signals are converted from other display states into indoor ambient temperature display state, the
remote controller will display indoor ambient temperature for 5 seconds and then return to set temperature display.
3. Only when remote signals are converted from other display states into outdoor ambient temperature display state, the
remote controller will display outdoor ambient temperature for 5 seconds and then return to set temperature display.
4. If the controller is lack of outdoor display functions, as the signal is received, set temperature will be displayed.
5. When the unit is turned off, temperature display will be compulsively set at given temperature by the controller. When the
unit is turned on, patterns as set by remote signals will be displayed.
6. If user does not set up temperature display state, given temperature will be displayed.
(2) Failure display of indoor unit
1. Requirements for failure display
When multiple failures appear at the same time, failure protection codes shall be displayed alternatively.
(1) Hardware failures shall be displayed immediately, referring to requirements in "Failure State Display Table";
(2) Operation states shall be displayed immediately, referring to requirements in "Failure State Display Table";
(3) Other failures shall be displayed 200s after the compressor stops, referring to requirements in "Failure State Display Table".
(Note: in the case that the unit is switched off with the remote controller, or the compressor is switched on again, failure
display waiting time (200s) shall be cleared.)
(4) Frequency limitation and reduction states shall be displayed by means of remote calling.
3. Failure display control
Indicator failure display shall be kept synchronous with Double 8 failure display, that is, during indicator blinking, failure code
corresponding to such indicator shall be displayed on Double 8.
4. Method of remote calling of failure display
Entering the failure remote calling mode: push the light button four times within 3s to call out relevant failure protection code;
Quit the failure remote calling mode: push the light button four times within 3s or call out failure display to enter it for 5 minutes
and then quit.
3. Other control targets
(1) Up and down wind blow functions: model of stepping motor is MP28EA.
When the unit is powered on, the up and down wind blow motor will turn a wind deflector anti-clockwise to Position 0 to shut
down the air outlet. When the unit is switched on and wind blow function is not preset, under the heating mode, up and down
wind blades will turn clockwise to position D; and under other modes, the up and down wind blades will turn clockwise to
position L. If wind blow function is set at the same time as the unit is switched on, the wind blades will swing between position
L and D. The wind blades can be kept in seven states: position L, position A, position B, position C, position D, swing between
position L and D, stop at one position from L to D. When the unit is turned off, the wind deflector will be closed up to position 0.
Wind blow action is effective only when wind blow commands are set and the indoor unit is running.
Note: When the wind blades are set at position L to B, position A to C, or position B to D through
remote setting, the wind deflector will swing between position L and D. L—A—B—C—D.
(2) Buzzer
When the controller is powered on, signals from a remote controller are received, or the auto button
is pushed, a buzzer will give out prompt tone.
(3) Auto button
When the button is pushed, the unit will operate in auto mode and the indoor fan will run in auto state. When the indoor fan is
running, the wind blow motor will work. When the button is pushed again, the unit will be switched off. At the same time as the
button is pushed, the whole unit will be powered on and enter into fast test mode; when the unit is powered on and detects for
continuous 20s (such time shall not be fast tested) that the auto button is pushed, and if the unit is currently at fast test state,
the unit will quit the fast test state.
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