10
UNT-SVU001-EN
System Operation
Notes:
• If TIMER LED is off, HOUR
▲
and
HOUR
▼
button do not function.
• If TIMER LED is on, pressing
HOUR
▲
and HOUR
▼
button
will change display time setting to
show hour set left with blinking
light. If press HOUR
▲
and HOUR
▼
button will change display to new
time setting.
• If the air conditioner stops by
power failure, setting of timer on/off
will be cancelled.
• If POWER button is pressed during
setting if timer, setting of timer
on/off will be cancelled and remote
will turn on/off air conditioner as
normal.
• If TIMER button is pressed again
during setting of time (TIMER LED
is lit), setting time will be cancelled.
Display Unit
The following LEDs are used to
indicates the status,
A LED (in Fan Button) shows when
the fan speed is put in AUTO mode,
SLEEP LED shows the system is
put in sleep mode,
TIMER LED shows when set the timer
on/off. FAN/COOL/HEAT LED shows
the operating mode of the air
conditioner.
Temperature Display
(7-segment
LED, 2 digits) show
- The room temperature.
- The setting temperature while
blinking.
- “RE”, show the room sensor is
open or short circuit.
- “FE” show the freeze sensor is
open or short circuit.
- “HF” show the heating system is
supposed to be fail. (For Cooling/
Heating model)
- “Fr” show the evaporator coil is
freeze.
When press the Fan Button to select
the fan speed. The display show the
status below.
- “F3” show the fan speed is high.
- “F2” show the fan speed is
medium.
- “F1” show the fan speed is low.
- “FA” show the fan speed is put in
AUTO mode.
System Features
1. Watchdog
There is a circuit in the system to
watch the operation of the
microprocessor.
2. Non-Volatile Memory
(Auto Restart)
After power interruption, the control
will resume its operation with same
setting parameters except those
related to the time.
3. Pre-heat/Post-heat (Heat Model)
The facility to prevent the fan coil
blowing cold draught when the
indoor coil temperature is low.
4. Freeze Function (Optional)
The facility to stop the compressor
if the indoor coil temperature is
below 0
O
C.
Operating Precautions
This system must be installed properly
by a qualified installer in accordance
with installation instructions.
• Temperature setting is adjusted
back
and
forth
.
•
ON/OFF
switch is turned
ON
and
OFF
.
• Room temperature reaches the
set point.
• Power failure.
Once any of the above conditions
occurs, the
anti-recycle timer
will
start preventing the operation of
the outdoor unit for approximately
3 minutes.
Freeze Protection
The system is protected against low
indoor coil temperatures. Under
certain conditions, the “COOL/DRY”
LED will blink indicating the protective
function has been activated. There is
no need to adjust the system.
Stop the air conditioner at once
if any the following occurs:
- The power cord is too hot to be
touched by hand.
- The insulation of the power cord is
exposed at any point
- The fuse is blown or circuit breaker
trips frequently.
- The functions of the switches are
inaccurate.
Operating air conditioner safety.
- Do not insert a bar or similar
object into the supply air outlet.
In particular, advise small children
not to insert anything in the grille.
- Do not pour water directly on the
air conditioner to clean it. If the
air conditioner is operating as wet,
grounding may occur, damaging
the unit.
- Adjust the air flow so it does not
blow directly on room occupants.
- Do not use flammable sprays near
the air conditioner because of
danger of fire.
- Do not use a steel or copper wire
in place of fuses.
AW 02092023TRA
29/10/02, 2:51 PM
10
Black
