32808001101
17
Specifications subject to change without notice.
ELECTRONIC FUNCTIONS
Abbreviation
T1: Indoor room temperature
T2: Coil temperature of evaporator
T3: Coil temperature of condenser
T4: Outdoor ambient temperature
T5: Compressor discharge temperature
Display function
Icon explanation on indoor display board
Fig. 16
-
Digital display
S
Displays the temperature settings when the air conditioner is
operational.
S
Displays the room temperature in FAN mode.
S
Displays the self−diagnostic codes.
S
Displays
for three seconds when Timer ON, Fresh,
Swing, Turbo or Silence feature is activated.
S
Displays
for three seconds when Fresh, Swing, Turbo, or
Silence feature is cancelled.
S
Displays
under defrosting operation.
S
Displays
when anti−cold air feature is activated under
heating mode.
S
Displays
during self clean operation (if applicable).
S
Displays
under 8
°
C heating operation (if applicable).
S
When ECO function (optional) is activated, the
illuminates gradually one by one as
in one second intervals.
Fig. 17
-
WIFI control display (optional)
Displays when the WIFI control feature is activated (Not
available on some units).
NOTE: A guide on using the infrared remote is not included
in this literature package.
Main Protection
Three minute delay for compressor restart
Less than a 1 minute delay for the initial start
*
up and a 3 minute delay
for subsequent starts.
Compressor top temperature protection
The unit stops working when the compressor top temperature protector
cuts off, and restarts after the compressor top temperatrue protector
restarts.
Compressor discharge temperature protection
Compressor discharge temp. T5>239
_
F(115
_
C) for 5s, compressor
stops.
Fan Speed is Out of Control
When the indoor fan speed remains too low (300RPM) the unit stops
and the LED displays the failure.
Inverter module protection
The inverter module has a protection function for current, voltage and
temperature. If any of these protections engage, the corresponding
code displays on the indoor unit and the unit stops working.
Compressor preheating functions
Preheating permitting condition: When the T4 (outdoor ambient
temperature)<37.4
_
F (3
_
C), the preheating function engages.
Zero Crossing Detection Error Protection
If the AC detects that the time interval is not correct for a continuous
period of 240s, the unit stops and the LED displays the failure. The correct
zero crossing signal time interval should be between 6−13ms.
Sensor Protection at Open Circuit and Breaking Disconnection
When there is only one malfunctioning temperature sensor, the air
conditioner keeps working yet displays the error code, in case of any
emergency use. When there is more than one malfunctioning
temperature sensor, the air conditioner stops working.
Refrigerant leakage detection
This function is only active in the COOLING mode. The function
helps prevent the compressor from being damaged by a refrigerant
leakage or a compressor overload.
Open condition:
When the compressor is active, the evaporator T2 coil temperature
value has no or very little change.
Operation Modes and Functions
FAN Mode
1. Outdoor fan and compressor stop
2. Temperature setting function is disabled, and no setting
temperature is displayed.
3. Indoor fan can be set to high/med/low/auto
4. The louver operates the same in the COOLING mode.
5. Auto fan
