12a-36
CONTROL SYSTEM
Revision 0
12A.18. On Unit Indicators and Controls.
STAND BY
INDICATOR
1. Lights up when the Air Conditioner is connected to power
and ready to receive the R/C commands
OPERATION
INDICATOR
1. Lights up during operation.
2. Blinks continuously during
• OCT High Pressure Protection Mode
• ICT High Pressure Protection Mode
• Deicing in Heating Mode
TIMER INDICATOR Lights up during Timer and Sleep operation.
FILTER INDICATOR
1. Lights up when Air Filter needs to be cleaned.
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.
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.
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 Cool Mode Heat Mode SB ...
The backlight will turn on and then off after 30 sec.
2. Press this button continuously for 5 sec or more to start the
Diagnostic Mode.
RESET / FILTER
BUTTON
1. When the Filter LED is ON, press to turn off the Filter LED
after a clean filter has been installed.
2. When the Filter LED is OFF, use this button to enable/
disable the buzzer announcer.
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