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Technical Information
Service Manual
Within 5min after energizing (unit ON or OFF status is ok),
continuously press LIGHT button for 3 times within 3s to enter
refrigerant recycling mode; Fo is displayed and refrigerant
recycling function is started. At this moment, the maintenance
people closes liquid valve. After 5min, stick the thimble of
maintenance valve with a tool. If there is no refrigerant spraying
out, close the gas valve immediately and then turn off the unit to
remove the connection pipe.
b. Exit refrigerant recycling function
After entering refrigerant recycling mode, when receive any
remote control signal or enter refrigerant recycling mode for
25min, the unit will exit refrigerant recycling mode automatically
If the unit is in standby mode before refrigerant recycling, it will
be still in standby mode after nishing refrigerant recycling; if the
unit is in ON status before refrigerant recycling, it will still run in
original operation mode.
(11) Ambient temperature display control mode
a. When user set the remote controller to display set temperature
(corresponding remote control code: 01), current set temperature
will be displayed.
b. 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 can't be
less than 180+T s(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) 8ºC heating function
Under heating mode, you can set 8ºC heating function by remote
controller. The system will operate at 8ºC set temperature.
(16) Turbo fan control function
Set turbo function under cooling or heating mode to enter into
turbo fan speed. Press fan speed button to cancel turbo wind.
No turbo function under auto, dry or fan mode.
6. Function and Control
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