73
Technical Information
Service Manual
previous operation status.
In cooling mode, the 4-way valve is de-energized (4-way valve is
not available for cooling only unit). Temperature setting range is
16~30°C.
(7) 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.
(8) Entry condition for compulsory defrosting function
When turn on the unit under heating ode and set temperature is
16°C (or 16.5°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.
(9) Refrigerant recovery function:
Enter into Freon recovery mode actively: Within 5min after
energization, turn on the unit at 16°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.
(10) 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°C.
(11) 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+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.
(12) SE control mode
The unit operates at SE status.
(13) X-fan mode
When X-fan function is turned on, after turn off the unit, indoor
fan will still operate at low speed for a few minutes 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.
(14) 8°C heating function
Under heating mode, you can set 8°C heating function by remote
controller. The system will operate at 8°C set temperature.
(15) 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.
●
Outdoor Unit
1. Basic Functions
(1) Cooling Mode
1. Conditions and processes of cooling operation:
(1) If the compressor is shut down, and [T
setup
– (T
indoor ambient temperature
–
T
cooling indoor ambient temperature compensation
)] < 0ºC , start up the machine
for cooling, the cooling operation will start;
(2) During operations of cooling, if 0ºC ≤ [T
setup
– (T
indoor ambient temperature
–
T
cooling indoor ambient temperature compensation
)] < 2ºC , the cooling operation
will be still running;
(3) During operations of cooling, if 2ºC ≤ [T
setup
– (T
indoor ambient temperature
–
T
cooling indoor ambient temperature compensation
)], the cooling operation will
stop after reaching the temperature point.
2. Temperature setting range
(1) If T
outdoor ambient temperature
≥ [T
low-temperature cooling temperature
], the temperature
can be set at: 16~30ºC (Cooling at room temperature);
(2) If T
outdoor ambient temperature
< [T
low-temperature cooling temperature
], the temperature
can be set at: 25~30ºC (Cooling at low temperature), that is, the
minimum setting temperature for outer units judgment is 25ºC .
(2) Dehumidifying Mode
1. Conditions and processes of dehumidifying operations: Same as
the cooling mode;
2. The temperature setting range is: 16~30ºC ;
(3) Air-supplying Mode
1. The compressor, outdoor fans and four-way valves are switched
off;
2. The temperature setting range is: 16~30ºC.
(4) Heating Mode
1. Conditions and processes of heating operations:
(T
indoor ambient temperature
is the actual detection temperature of indoor
environment thermo-bulb, T
heating indoor ambient temperature compensation
is
the indoor ambient temperature compensation during heating
operations)
(1) If the compressor is shut down, and [(T
indoor ambient temperature
–
T
heating indoor ambient temperature compensation
) –T
setup
] < 0°C , start the machine to
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