Gree GWH18RC-K3DNA1A - Page 30

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Indoor fan can be set at super-high, high, medium or low. Meanwhile, the fan will operate at super-high, high, medium and low fan speed
respectively and it can also set at auto fan speed.
(8) Memory Function
Memory content includes mode, up & down swing, light, set temperature and set fan speed, general timer (clock timer cant be
memorized), 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
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.
(9) Locked protection to PG motor
If the indoor fan motors rotational speed after startup keeps slow for a continuous period of time, the unit will stop operation and display “H6”.
(10)Turbo Function
This function can be set in cooling or heating mode to quickly cool or heat the room(Turbo function is not available in auto, dry and fan
mode). After pressing the turbo button, indoor fan will operate at super-high fan speed.
5. Malfunction Detection for Temperature sensor
(1) Indoor ambient temperature sensor:
Malfunction of temperature sensor will be detected at any time;
(2) Indoor tube temperature sensor
Malfunction of temperature sensor wont be detected during defrosting period. It starts detecting the malfunction of temperature sensor
(3) Protection of temperature sensor
1. When the temperature sensor is detected short circuit for 30s successively:
The detected temperature by the temperature sensor is too high and the complete unit will stop operation, meanwhile, the protection and
malfunction of temperature sensor will be displayed accordingly.
2. When the temperature sensor is detected open circuit for 30s successively: The unit will stop operation due to protection and the
corresponding malfunction of temperature sensor will be displayed directly.
6. Compulsory operating function of indoor unit
(1) Enter into compulsory operation control
After the unit is energized for 5mins, press the light button on remote controller for 3 times in 3s successively to enter into Freon recovery
mode. Fo will be displayed. When Freon recovery mode operated for 25mins, all loads will operate in cooling mode. (The setting fan
speed is high fan speed and the setting temperature is 16
o
C)
(2) Exit the compulsory operation control
Freon recovery mode will be exited after receiving any signal from remote controller or button and then the unit will operate at the current
setting command; Freon mode will also be exited after operating for 25mins and then the unit will be turned off.
1. Input Parameter Compensation and Calibration
(1) Check the input parameter compensation function
As the instruction feature of split unit, concerning the comfortable, in heating mode, the indoor ambient temperature of compressor
stopping time is higher than preset temperature.
(2) Check effective judgment controls of parameters
Effective judgment function of the outdoor exhaust temperature thermo-bulb
When conditions a and b are satisfied, the outdoor exhaust temperature thermo-bulb is judged not to be connected into place, the
mainboard of outer units will display failure of the outdoor exhaust temperature thermo-bulb (not connected into place), stop the unit for
repairing, and resume it by remote controls of ON/OFF.
2. Basic Functions
(1) Cooling Mode
1. Conditions and processes of cooling operation:
(1) If the compressor is stop, and [T
preset
– (T
indoor ambient
– ΔT
cooling indoor ambient temperature compensation
)] ≤ 0.5
o
C, start up the unit for cooling, and start to
cooling operation;
(2) During operations of cooling, if 0
o
C ≤ [T
preset
– (T
indoor ambient
–ΔT
cooling indoor ambient temperature compensation
)] < 2
o
C, the cooling operation will be still
running;
(3) During operations of cooling, if 2
o
C ≤ [T
preset
– (T
indoor ambient
–ΔT
cooling indoor ambient temperature compensation
)], the cooling operation will stop after
reaching to the temperature point.
2. Temperature setting range
Outdoor Units