【教えて下さい】「just be cool」の意味

Thereby, when the cool down requirement signal is released and the amount of air of the battery cooling fan 42 is increased, that is, even just after cool down, it can be prevented that the internal air temperature Tr is again raised and the internal air temperature Tr and the control state of the compressor 2 can be stabilized.

http://ejje.weblio.jp/sentence/content/just+be+cool