Gree GWH09RB-K3DNA3G Service Manual page 22

Service Manual
(5) SLEEP State Control
a. When the air conditioner is under the mode of COOL, and the SLEEP mode has been set well, after the SLEEP state keeps about 1
hour, the pre-setting T will raise 1°C, and it will raise 1°C again after 2 hours, so it raise 2°C in 2 hours, then it will run on at the setting
temperature and wind speed.
b. When the air conditioner is under the mode of HEAT, and the Timer has been set well, after the SLEEP state keeps about 1 hour,
the pre-setting T will reduce 1°C, and it will reduce 1°C again after 2 hours, so it reduce 2°C in 2 hours, then it will run on at the setting
temperature and wind speed.
c. The setting temperature keeps the same under the FAN mode and AUTO mode.
(6) Indoor Fan Control
Indoor fan could be set at ultra-high, high, medium, low speed by wireless remote controller and operated as that speed.
Auto fan speed could be set as well, indoor fan will operate under auto fan speed as following:
① Under heating mode: auto speed under heating or auto heating mode:
a. When T ≤T +1°C, indoor fan will operate at high speed;
amb. preset
b. When T +1°C ＜ T
preset
c. When T ≥T +3°C, indoor fan will operate at low speed;
amb. preset
There should be at least 180s operation time during switchover of each speed.
② Under cooling mode: auto speed under cooling or auto cooling mode:
a. When T ＜ T +2°C, indoor fan will operate at high speed;
amb. preset
b. When T ＜ T ＜ T
preset amb.
c. When T ≤T , indoor fan will operate at low speed;
amb. preset
There should be at least 180s operation time during switchover of each speed.
(7) Buzzer Control
The buzzer will send a "Di" sound when the air conditioner is powered up or received the information sent by the remote control or
there is a button input, the single tube cooler doesn't receive the remote control ON signal under the mode of heating mode.
(8) Auto Button
If the controller is on, it will stop by pressing the button, and if the controller is off, it will be automatic running state by pressing the
button, swing on and light on, and the main unit will run based on the remote control if there is remote control order.
(9) Up-and-Down Swinging Control
When power on, the up-and-down motor will firstly move the air deflector to o counter-clockwise, close the air outlet. After starting
the machine, if you don't set the swinging function, heating mode and auto-heating mode, the up-and-down air deflector will move to
D clockwise; under other modes, the up-and-down air deflector will move to L1. If you set the swinging function when you start the
machine, then the wind blade will swing between L and D. The air deflector has 7 swinging states: Location L, Location A, Location B,
Location C, Location D, Location L to Location D, stop at any location between L-D (the included angle between L~D is the same). The
air deflector will be closed at 0 Location, and the swinging is effectual only on condition that setting the swinging order and the inner
fan is running. The indoor fan and compressor may get the power when air deflector is on the default location.
(10) Display
① Operation pattern and mode pattern display
All the display patterns will display for a time when the power on, the operation indication pattern will display in red under standby
status. When the machine is start by remote control, the indication pattern will light and display the current operation mode (the mode
light includes: Cooling, heating and dehumidify). If you close the light key, all the display patterns will close.
② Double-8 display
According to the different setting of remote control, the nixie light may display the current temperature (the temperature scope is
from 16~30°C) and indoor ambient temperature. The heating and air supply temperature will display 25°C under auto-mode, the
temperature will display 20°C under the auto-heating mode, and the temperature will display H1 under the defrosting mode.(If you set
the fahrenheit temperature display, the nixie light will display according to fahrenheit temperature)
(11) Protection Function and Failure Display
E2: Freeze-proofing protection
E4: Exhausting protection
E5: Overcurrent protection
E6: Communication failure
F1: Indoor ambient sensor start and short circuit (continuously measured failure in 5s)
F2: Indoor evaporator sensor start and short circuit (continuously measured failure in 5s)
Technical Information
＜ T +3°C, indoor fan will operate at medium speed;
amb. preset
+2°C, indoor fan will operate at medium speed;
preset
Heating angle O(0°) Cooling angle
O(0°)
L
A
B
C
D
L1
A1
B1
C1
D1
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