Airwell ONG3-17 R410A, Service Manual

Page: 80 / 127

CONTROL SYSTEM
Service Manual-CN Fixed RPM series
12-45
12.15 ON UNIT INDICATORS AND CONTROLS
STAND BY
INDICATOR
Lights up during STBY mode.
Turns off during operaiton mode.
The STBY LED blinks only in the following cases:
Fault #1, #2, #4, #5, #8, and #9
The STBY LED will NEVER blink in the following cases:
Fault 7, 11, and 12 (temp does not change).
OPERATION
INDICATOR
1. Lights up during operation (turns off during STBY mode)
2. Blinks for 300 ms, to announce that a R/C infrared signal
has been received and stored.
3. Blinks continuously during
x
OCT High Pressure Protection Mode (Cf.: Sect 7.1.2)
x ICT High Pressure Protection Mode (Cf.: Sect. 7.2.2)
x Deicing in Heating Mode (Cf.: Sect. 7.2.1)
x Water Over Flow in CN/NKN/NFC Model (Cf.: Sect. 7.5)
TIMER INDICATOR Lights up during Timer and Sleep operation.
FILTER INDICATOR
1. Lights up when Air Filter needs to be cleaned.
2. Blinks during Water Over Flow in MBX/P2000 models.
(Cf.: Sect. 7.3)
COOLING
INDICATOR
1. Lights up when system is switched to Cool Mode by using the
Mode Switch on the unit.
2. Show the thermistor status in Diagnostic Mode (Cf.: Sect. 23)
HEATING
INDICATOR
1. Lights up when system is switched Heat Mode by using the
Mode Switch on the unit.
2. Show the thermistor status in Diagnostic Mode (Cf.: Sect. 23)
MODE BUTTON
(Cool, Heat, SB)
1. Use to cycle the operation mode of the A/C unit among
COOL, HEAT and SB modes, without using the R/C.
Every time this switch is pressed, the next operation mode is
selected, in this order :
SB
Î
Cool Mode
Î
Heat Mode
Î
SB
Î
...
3. Press this button continuously for 5 sec or more to start the
Diagnostic Mode (Cf.: Sect 23)
4. Whenever the filter LED is on, short pressing on the Mode
will reset the filter timer and turns off the Filter LED
RESET / FILTER
BUTTON
1. When the Filter LED is ON, press to turn off the Filter LED
after a clean filter has been reinstalled.
2. When the Filter LED is OFF, use this button to
enable/disable the buzzer announcer.