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2. SYSTEM SAFETY PROTECTIONS
The air conditioner is equipped with complete safety protections to ensure safe
operation of air conditioner at different operating conditions :
2.1 Safety
protections
for Cool Only System
Auto Restart Feature with backup memory.
When the power failure is happened during the air conditioner operation, the microprocessor
of printed circuit board will memorize the operation setting. After the power is recovered, the
air conditioner operates automatically ( without remote control after elapse of compressor
time delay ), according to the previous operation settings.
3 (Three) minutes time delay between compressor turning off and turning on for compressor
protection against cycling.
Anti-freezing protection of indoor coil when the system is operating in cool mode with
excessive dirt on the indoor coil and / or clogged air filters and when the air conditioner is
operating in cool mode at low ambient temperature.
Smart self-diagnostic function for malfunctions detection for fast easy service and
maintenance.
Smart refrigerant leak detection by sensitive sensors mounted on the indoor and outdoor
coils for fast easy service and maintenance.
2.2 Safety protections for Heat Pump System
Auto Restart Feature with backup memory.
When the power failure is happened during the air conditioner operation, the microprocessor
of printed circuit board will memorize the operation setting. After the power is recovered, the
air conditioner operates automatically ( without remote control after elapse of compressor
time delay ), according to the previous operation settings.
3 (Three) minutes time delay between compressor turning off and turning on for compressor
protection against cycling.
Anti-freezing protection of indoor coil when the system is operating in cool mode with
excessive dirt on the indoor coil and / or clogged air filters and when the air conditioner is
operating in cool mode at low ambient temperature.
High temperature protection of outdoor coil when the air conditioner is operating in cool
mode.
Cold draft protection when the system is operating in heat mode.
When starting heat mode, the fan speed is regulated automatically from the lowest grade to
the preset level, according to the temperature rise of indoor coil. This function can prevent
cold air blowing out at the beginning of heat modem which avoids the discomfort to the
user.
High temperature protection of indoor coil when the air conditioner is operating in heat
mode.
Defrost protection of outdoor coil when the air conditioner is operating in heat mode
at very low ambient temperature.
Smart self-diagnostic function for malfunctions detection for fast easy service and
maintenance.
Smart refrigerant leak detection by sensitive sensors mounted on the indoor and outdoor
coils for fast easy service and maintenance.
