35
Technical Information
Service Manual
(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. After power
recovery, compressor can only be started up after 180+T s at least.
(13) SE control mode
The unit operates at SE status.
(14) X-fan mode
When X-fan function is turned on, after turn off the unit, indoor fan will still operate at low speed for 2min and then the complete unit will be
turned off. When x-fan function is turned off, after turn off the unit, the complete unit will be turned off directly.
(15) 8
O
C heating function
Under heating mode, you can set 8
o
C heating function by remote controller. The system will operate at 8
o
C set temperature.
(16)Turbo function
Turbo function can be set under cooling and heating modes. Press Fan Speed button to cancel turbo setting. Turbo function is not available
under auto, drying and fan modes.
