< Low Ambient Cooling Operation >
When the outdoor air temperature reaches 57.2 °F (14 °C ) or less during the cooling operation, the operation mode is switched to low ambient cooling operation.
When the mode is switched from cooling opration to low ambient cooling operation, the compressor is stopped for 150 seconds temporarily.
When the mode has been switched to low ambient cooling operation, the outdoor fan speed is lowered as the outdoor air temperature falls.
Outdoor fan speed [ rpm ] |
32 °F ( °C ) |
Outdoor air temperature
When the outdoor air temperature reaches 62.6 °F (17 °C ) or more during the low ambient cooling operation, the operation mode is switched to cooling operation.
The following protective actions are available to prevent the compressor from operating with abnormal loads.
At that time, they initiate
Outdoor air temp. °F ( °C )
14
8.6
Compressor
ON
OFF
ON
Indoor fan
ON
76
