－40－
（３）
Energy-saving mode 2
The internal fan runs in conjunction with cooling operation.
Effective for energy saving when cooling operation is stopped under a low temperature like winter season. The values
in the ( ) show the default setting.
Note :
･
There is a risk of creating hot spots because the air is not circulated by the internal fan.
･
For protection of the refrigerant circuit, the internal fan will not stop for 5 minutes after cooling operation has
stopped.
（４）
Energy-saving mode 3
In case the internal temperature goes down below the set temperature but not reach the differential value, cooling
operation and shutdown time take place by turns. Cooling and shutdown times are set by the parameters t1 and t2.
The internal fan runs in conjunction with cooling operation.
The values in the ( ) show the default setting.
* Operation time of internal fan and compressor during intermittent operation (7 min.)
* Shutdown time of external fan and compressor (3 min.)
Note
･
The internal temperature can exceeds the set temperature because the compressor is forcibly stopped by the set
time period. In case the heat value inside the enclosure is large, the internal temperature can even exceeds the
high temp. alarm temperature value.
･
For prevention of excessive temperature rise inside the enclosure, cooling operation will be continued until the
internal temperature goes down below the set value if the internal temperature has not reached the set value
during the set time period.
･
For protection of the refrigerant circuit, the internal fan will not stop for 5 minutes after cooling operation has
stopped.
･
The internal fan runs continuously when the internal temperature exceeds the
cooling operation stop
temperature
..
Cooling operation stop temp
(30℃)
Setting temperature
（35℃）
External fan, compressor
ON
OFF
Internal fan
ON
OFF
Differential temp
（5℃）
High temp. alarm
（45℃）
Differential temp
（5℃）
External fan, compressor
ON
OFF
Internal fan
ON
OFF
Setting temperature
（35℃）
Cooling operation stop temp
(30℃)
