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 
.
(Table 22 :
Outdoor temperature | Temperature | Temperature | ||
Over than 10°C (50°F)*1 |
| 7°C (44.6°F) | ||
or 12°C (53.6°F) | *2 | 4°C (39.2°F) | ||
| ||||
Less than 10°C(50°F) | *1 | 13°C (55.4°F) | ||
| ||||
or 12°C (53.6°F) | *2 |
| ||
|
| |||
|
|
|
| |
*1. When the temperature rises.
*2. When the temperature drops.
4. COOLING PRESSURE OVERRISE PROTECTION
When the outdoor unit heat exchange sensor temperature rises to 67°C (152.6°F) or greater, the compressor and the outdoor fan motor are stopped and trouble display is performed.
5.HIGH TEMPERATURE RELEASE CONTROL ( HEATING MODE )
On heating mode, the compressor frequency is controlled as following based on the detection value of the indoor heat exchanger temperature sensor.
[ Control System ]
Indoor heat exchange temperature rises
Compressor is stopped |
63°C (145.4°F) |
The compressor frequency is |
decreased 25rps every 120seconds. |
55°C (131°F) |
The compressor frequency is |
decreased 3rps every 60seconds. |
53°C (127.4°F) |
Stable zone |
50°C (122°F) |
It returns to the normal operation |
Indoor heat exchange temperature drops
