Service Manual
22
Technical Information
6.5 Description of Each Control Operation
Indoor units
Mode and Operation Introduction
Basic fu nctions
1. Cooling Mode
Under this mode, the fan and louver should be operated according to the setting status. The temperature setting range is
16~30
℃
, and the initial value is 25
℃
. In case of malfunction of outdoor unit or protection shutdown, indoor unit will maintain
the original operation status and display malfunction indication.
2. Drying Mode
Under this mode, the fan operates under low speed, and the louver operates under setting status. The temperature setting
range is 16~30
℃
, and the initial value is 25
℃
. In case of malfunction of outdoor unit or protection shutdown, indoor unit will
maintain the original operation status and display malfunction indication.
3. Heating Mode
Under this mode, the temperature setting range is 16~30
℃
, and the initial value is 25
℃
. The working condition and process
of heating: If the compressor status sent by outdoor unit is on, indoor unit operates according to the cold air prevention
condition; if the compressor status sent by outdoor unit is off, indoor unit operates according to the waste heat blow condition.
On under heating mode, indoor fan operates according to the waste heat blow condition. Defrosting control: indoor unit
receives drying signal of outdoor unit and displays drying icon ―drying
‖
. De-energize it to heat, and indoor fan will stop running
after 10s.
4. Fan mode
Under this mode, the fan of indoor unit can choose high, medium, low or auto fan speed
5. Auto mode
Under this mode, operation is based on the following conditions according to the ambient temperature. When Tamb.>26
℃
,
unit will operate in cooling mode and indoor set temperature is 26
℃
; When 20
℃
≤Tamb.≤26
℃
, unit will operate in drying
mode and indoor set temperature is 24
℃
; When Tamb. <20
℃
, unit will operate in heating mode, and indoor set temperature
is 20
℃
, when Tamb.≥24
℃
, unit will exit the heating mode. For cooling only unit, when Tamb. <20
℃
, it will operate in fan mode
and indoor set temperature is 20
℃
; when Tamb.≥24
℃
, unit will exit the fan mode.
Other f unctions
1. Swing function
Different models have different swing functions. For up & down swing, left & right swing, swing angle is different according to
different structures and motors. It is designed to meet users’ needs for comfort air swing.
2. Turbo
Under cooling and heating mode, turbo function can be controlled by remote controller or button (Turbo function is not
available in auto, drying, or fan mode); when turbo is set, the indoor fan will operate in turbo fan speed.
3. X-fan
When unit is turned on in cooling or drying mode (X-fan is not available in auto, drying, or fan mode), X-fan can be set on or
off. When X-fan is on, after unit is turned off by the on/off button, indoor fan will operate at low speed for 10 minutes (air swing
will maintain original status for 10 minutes while other loads are turned off). After that, the entire unit will be shut off. When
X-fan is off, after unit is turned off by the on/off button, the entire unit will be shut off.
4. Timer
Use remote controller or button to set timer on or off. The setting range is 0.5~24 hours.
5
．
Sleep
①
. If controller is in cooling or drying mode, at the start of sleep function, T preset will be raised no more than 3
℃
, and then
unit will operate according to the temperature raised.
②
.If controller is in heating mode, at the start of sleep function, T preset will be decreased no more than 3
℃
, and then unit will
operate according to the temperature decreased.
6. Buzzer
When controller is just energized or receives effective button signal, buzzer will sound.
7. Cleaning
This function is excluded when the unit is turned on. Turn off the unit and press function button to select ―cleaning
‖
with its
