19
Technical Information
Service Manual
FCG 3
FCG 2
FCG 1
TCG1
TCG2
TCG3
88
64
48
240
360
180
TCG 1sec
TCG 2sec
TCG 3sec
Time
Frequency
FCG3
FCG2
FCG1
(12)Health Function
When the indoor fan motor is running, the Health function is set by pressing remote controller (If there is no Health button on the remote
controller, the health function opening is defaulted).
(13)I Feel Function
If the remote controller receives the I Feel order, the controller will work at the ambient temperature value which is sent by remote
controller (Except the defrosting and anti-cool wind, which still adopts the sampling value of AC itself ambient temperature sensor),
the remote controller will send ambient temperature value to controller every 10mins. After 11mins, if the controller hasn’t received the
ambient temperature value from the remote controller for long time, then it will run according to the current ambient temperature of AC.
If the function has not been set, the ambient temperature will adopt the sensor sampling value of AC itself. If power off happens, this
function will not be memorized.
Troubleshooting of Temperature Sensor
(1) Indoor Temperature Sensor
Detect malfunctions of temperature sensor any time.
(2) Indoor Pipe Temperature Sensor
detect the temperature sensor malfunction. In other times, the temperature sensor malfunction will be detected.
(3) Protection of Temperature Sensor
1. When short-circuit occurs to the temperature sensor for 5s:
The temperature sensor overheats. In this case, the complete unit will stop for protection. At the same time, the temperature protection
and temperature sensor malfunction will be shown.
2. When break-circuit occurs to the temperature sensor for 5s:
The unit will stop and the temperature sensor malfunction will be displayed.
Frequency Control
Frequency Initial Setting<Outline>When starting the compressor, or when conditions are varied due to the change of the room, the
frequency must be initialized accordingto the
D value of the indoor unit and the Q value of the indoor unit.Q value: Indoor unit output
D Signal)
1.P controlCalculate
D value in each sampling time (20 seconds), and adjust the frequency according to its difference from the
frequencypreviously calculated.
D value.
When the
D value is small lower the frequency.
When the
D value is large increase the frequency.
3.Frequency management when other controls are functioningWhen frequency is drooping;Frequency management is carried out only
when the frequency droops.For limiting lower limitFrequency management is carried out only when the frequency rises.
4.Upper and lower limit of frequency by PI controlThe frequency upper and lower limits are set depending on indoor unit.When low
noise commands come from the indoor unit or when outdoor unit low noise or quiet commands come from indoor unit, theupper limit
frequency must be lowered than the usual setting.
3-minutes Standby
Prohibit to turn ON the compressor for 3 minutes after turning it off.(except when defrosting)
Compressor Protection Function
When turning the compressor from OFF to ON, the upper limit of frequency must be set as follows. (The function must not be used
when defrosting.)
Discharge Pipe Control
Outline
The discharge pipe temperature is used as the compressor’s internal temperature. If the discharge pipe temperature rises above a
certain level, the operating frequency upper limit is set to keep this temperature from going up further.
and D. there are 7 states for the
e timer function is set in the last control before it is de-energized, the system
last control and the setting time is reached before the unit is de-energized, the unit will run according to the previous running mode after
it is energized again. But the timer function will terminate. The clock will not be memorized.
In cooling and heating mode (not available in auto, dehumidify, fan mode), press the Turbo button, the fan speed displayed super high
speed in the remote controller and the indoor fan rotates at super high speed.
L
A
B
C
D
Содержание ACZCI4C4R12
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