01-22
3. ANTIFREEZING CONTROL (Cooling and Dry mode)
The compressor frequency is decrease on cooling & dry mode when the indoor heat exchanger
temperature sensor detects the temperature lower than Temperature .
Then, the anti-freezing control is released when it becomes higher than Temperature .
(Table 16 : Anti-freezing Protection Operation / Release Temperature)
Outdoor temperature
Over than 10°C
*1
or 12°C
*2
Less than 10°C
*1
or 12°C
*2
*1. When the temperature rises.
*2. When the temperature drops.
4°C
7°C
13°C
Temperature
Temperature
4. COOLING PRESSURE OVERRISE PROTECTION
When the outdoor unit heat exchange sensor temperature rises to
67°C
or greater,
the compressor is stopped and trouble display is performed.
When satisfy the following conditions, the protection works.
When detecting the above condtion, recheck the condition after 6 minutes.
When count the twice, the protection works
Protection contents
Reduce the static pressure 20 Pa
When it does not dissolve even the minimum static pressure condition, work the following operation
a) After the 90 seconds from the fan operation, detect less than 300 rpm for 10 seconds.
b) IPM trip protection works.
c) Current overload protection works.
a) Fan motor error displayed
b) Fan stop 40 secounds
c) Fan stop 50 secounds
5. INDOOR UNIT FAN MOTOR OVER TEMPERATURE PROTECTION
AMP Air Conditioning
www.ampair.co.uk | [email protected]
