19
Technical Information
Service Manual
6.2 Brief Description of Modes and Functions
●
Indoor Unit
1.Basic function of system
(1)Cooling mode
(1) Under this mode, fan and swing operate at setting status.
(2) During malfunction of outdoor unit or the unit is stopped because of protection, indoor unit keeps original operation status.
(2)Drying mode
(1) Under this mode, fan operates at low speed and swing operates at setting status.
(2) During malfunction of outdoor unit or the unit is stopped because of protection, indoor unit keeps original operation status.
(3) Protection status is same as that under cooling mode.
(4) Sleep function is not available for drying mode.
(3)Heating mode
(1) Under this mode, Temperature setting
on the remote setpoint
is 60.8~86.0
O
F.
(2) Working condition and process for heating mode:
When turn
ing
on the unit under heating mode,
the indoor unit's fan motor will stop until the preheating of the indoor coil above 86°F
to prevent cool/cold air start-up in heat mode.
1.
(4)Working method for AUTO mode:
Working condition and process for AUTO mode:
a.Under AUTO mode, standard heating Tpreset=68.0
O
F and standard cooling Tpreset=77.0
O
F. The unit will switch
from heat to cool
automatically within the preset factory settings.
2.Protection function
a. During cooling operation, protection function is same as that under cooling mode.
b. During heating operation, protection function is same as that under heating mode.
3. Display: Set temperature is the set value under each condition.
4. If there’s I feel function, Tcompensation is 0. Others are as above.
(5)Fan mode
2. Other control
(1) Buzzer
When power is applied to the unit and/or when the remote buttons are pressed
, the buzzer will give out a beep.
(2) Auto button
If press
ing
this auto button when turning off the unit,
press the auto button again to turn off auto mode.
(3) Auto fan
Heating mode: During auto heating mode or normal heating
m
ode, auto fan speed will adjust the fan speed automatically according
to ambient temperature and set temperature.
(4) Sleep
After setting sleep function for a period of time, system will adjust set temperature automatically.
(5) Timer function:
General timer and clock timer functions are compatible by equipping remote controller with different functions.
(6) Memory function
M
emorize
s
compensation temperature, off-peak energization value.
Memory content:
M
ode, up
and
down swing, light, set temperature, set fan speed, general timer (clock timer can’t be memorized).
After power recovery, the unit will
turn
on automatically according to memory content.
(7) Health function
During operation of indoor fan, set health function by remote controller. Turn
ing
off the unit will also turn off health function.
Turn on the unit by pressing auto button, and the health is defaulted ON.
Fan mode will only run the indoor fan motor to circulate the indoor air, with no outdoor unit function under fan mode.
The indoor fan can operate at high, medium, low or auto fan speed.
