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Technical Information
6.4 Brief Description of Models and Functions
●Indoor Unit
1.Basic function of system
(1)Cooling mode
(1) Under this mode, fan and swing operates at setting status.
Temperature setting range is 16~30
O
C.
(2) During malfunction of outdoor unit or the unit is stopped
because of protection, indoor unit keeps original operation status.
(2)Drying mode
(1) Under this mode, fan operates at low speed and swing
operates at setting status. Temperature setting range is 16~30
O
C.
(2) During malfunction of outdoor unit or the unit is stopped
because of protection, indoor unit keeps original operation status.
(3) Protection status is same as that under cooling mode.
(4) Sleep function is not available for drying mode.
(3)Heating mode
(1) Under this mode, Temperature setting range is 16~30
O
C.
(2) Working condition and process for heating mode:
When turn on the unit under heating mode, indoor unit enters into
cold air prevention status. When the unit is stopped or at OFF
status, and indoor unit has been started up just now, the unit
enters into residual heat-blowing status.
(4)Working method for AUTO mode:
1.Working condition and process for AUTO mode:
a.Under AUTO mode, standard heating Tpreset=20
O
C and
standard cooling Tpreset=25
O
C. The unit will switch mode
automatically according to ambient temperature.
2.Protection function
a. During cooling operation, protection function is same as that
under cooling mode.
b. During heating operation, protection function is same as that
under heating mode.
3. Display: Set temperature is the set value under each condition.
Ambient temperature is (Tamb.-Tcompensation) for heat pump
unit and Tamb. for cooling only unit.
4. If theres I feel function, Tcompensation is 0. Others are same
as above.
(5)Fan mode
Under this mode, indoor fan operates at set fan speed.
Compressor, outdoor fan, 4-way valve and electric heating tube
stop operation. Indoor fan can select to operate at high, medium,
low or auto fan speed. Temperature setting range is 16~30
O
C.
2. Other control
(1) Buzzer
Upon energization or availably operating the unit or remote
controller, the buzzer will give out a beep.
(2) Auto button
If press this auto button when turning off the unit, the complete
unit will operate at auto mode. Indoor fan operates at auto fan
speed and swing function is turned on. Press this auto button at
ON status to turn off the unit.
(3) Auto fan
Heating mode: During auto heating mode or normal heating ode,
auto fan speed will adjust the fan speed automatically according
to ambient temperature and set temperature.
(4) Sleep
After setting sleep function for a period of time, system will adjust
set temperature automatically.
(5) Timer function:
General timer and clock timer functions are compatible by
equipping remote controller with different functions.
(6) Memory function
memorize compensation temperature, off-peak energization value.
Memory content: mode, up&down swing, light, set temperature,
set fan speed, general timer (clock timer cant be memorized).
After power recovery, the unit will be turned on automatically
according to memory content.
(7) Health function
During operation of indoor fan, set health function by remote
controller. Turn off the unit will also turn off health function.
Turn on the unit by pressing auto button, and the health is
defaulted ON.
(8)I feel control mode
After controller received I feel control signal and ambient
temperature sent by remote controller, controller will work
according to the ambient temperature sent by remote controller.
(9)Entry condition for compulsory defrosting function
When turn on the unit under heating ode and set temperature is
16
O
C (or 16.5
O
C by remote controller), press “ , , , , , ”
button successively within 5s and then indoor unit will enter into
compulsory defrosting setting status:
(1) If theres only indoor units controller, it enters into indoor normal
defrosting mode.
(2) If theres indoor units controller and outdoor units controller,
indoor unit will send compulsory defrosting mode signal to outdoor
unit and then outdoor unit will operate under normal defrosting
mode. After indoor unit received the signal that outdoor unit has
entered into defrosting status, indoor unit will cancel to send
compulsory mode to outdoor unit. If outdoor unit hasnt received
feedback signal from outdoor unit after 3min, indoor unit will also
cancel to send compulsory defrosting signal.
(10)Refrigerant recovery function:
Enter into Freon recovery mode actively: Within 5min after
energization, turn on the unit at 16
O
C under cooling mode, and
press light button for 3 times within 3s to enter into Freon recovery
mode. Fo is displayed and Freon recovery mode will be sent to
outdoor unit.
(11)Ambient temperature display control mode
1. When user set the remote controller to display set temperature
(corresponding remote control code: 01), current set temperature
will be displayed.
2. Only when remote control signal is switched to indoor ambient
temperature display status (corresponding remote control code:
10) from other display status (corresponding remote control code:
00, 01,11),controller will display indoor ambient temperature for 3s
and then turn back to display set temperature.
Under this mode, indoor fan operates at set fan speed.
Compressor, outdoor fan, 4-way valve and electric heating tube
stop operation. Indoor fan can select to operate at high, medium,
low or auto fan speed. Temperature setting range is 16~30
O
C.
(12)Off-peak energization function:
Adjust compressors minimum stop time. The original minimum
stop time is 180s and then we change to:
The time interval between two start-ups of compressor cant be
less than 180+Ts(0≤T≤15). T is the variable of controller. Thats to
say the minimum stop time of compressor is 180s~195s. Read-
in T into memory chip when refurbish the memory chip each time.
