Airwell 7SP023054, Service Manual

Page: 33 / 69

ELECTRONIC FUNCTION
HKD DCI 33 Version - 1
The action of forced auto mode is the same as
normal auto mode with 24
℃
setting temperature.
When AC receives signals, such as switch on,
switch off, timer on, timer off, mode setting, fan
speed setting, sleeping mode setting, follow me
setting, it will quit the forced operation.
9.4.7 Economy function
9.4.7.1 The sleep function is available in cooling,
heating or auto mode.
9.4.7.2. Operation process in sleep mode is as
follow:
When cooling, the setting temperature rises 1
℃
(be lower than 30
℃
) every one hour, 2 hours
later the setting temperature stops rising and the
indoor fan is fixed at low speed.
When heating, the setting temperature
decreases 1
℃
(be higher than 17
℃
) every one
hour, 2 hours later the setting temperature stops
rising and indoor fan is fixed at low speed. (Anti-
cold wind function has the priority).
9.4.7.3 Operation time in sleep mode is 7 hours.
After 7 hours the AC quits this mode and turns
off.
9.4.7.4 Timer setting is available
9.4.8 Auto-Restart function
The indoor unit is equipped with auto-restart
function, which is carried out through an auto-
restart module. In case of a sudden power failure,
the module memorizes the setting conditions
before the power failure. The unit will resume the
previous operation setting (not including swing
function) automatically after 3 minutes when
power returns.
If the memorization condition is forced cooling
mode, the unit will run in cooling mode for 30
minutes and turn to auto mode as 24
℃
setting
temp.
If AC is off before power off and AC is required
to start up now, the compressor will have 1
minute delay when power on. Other conditions,
the compressor will have 3 minutes delay when
restarts.
9.4.9 Refrigerant Leakage Detection
With this new technology, the display area will
show
“EC” when the outdoor unit detects
refrigerant leakage.
9.4.10 8
℃
Heating (optional)
In heating operation, the preset temperature of
the air conditioner can be as lower as 8
℃
, which
keeps the room temperature steady at 8
℃
and
prevents household things freezing when the
house is unoccupied for a long time in severe
cold weather.
9.4.11 Self clean (optional)
For heat pump models which are provided with
this function, after running in cooling or drying
mode, if the user press “Self Clean” button on
remote controller, firstly, indoor unit runs in fan
only mode for a while, then low heat operation
and finally runs in fan only again. This function
can keep the inside of indoor unit dry and
prevent breeding of mold.
9.4.12 Follow me (optional)
1) If the indoor PCB receives the signal which
results from pressing the FOLLOW ME button on
remote controller, the buzzer will emit a sound
and this indicates the follow me function is
initiated. But when the indoor PCB receives
signal which sent from remote controller every 3
minutes, the buzzer will not respond. When the
unit is running with follow me function, the PCB
will control the unit according to the temperature
from follow me signal, and the temperature
collection function of room temperature sensor
will be shielded, but the error detective function
of room temperature sensor will be still valid.
2) When the follow me function is available,
the PCB will control the unit according to the
room temperature from the remote controller
and the setting temperature.
3) The PCB will take action to the mode
change information from remote controller signal,
but it will not affected by the setting temperature.
4) When the unit is running with follow me
function, if the PCB doesn’t receive any signal
from remote controller for 7 minutes or pressing