
<html><head></head><body><div class="yahoo-style-wrap" style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:13px;"><div dir="ltr" data-setdir="false"><div><span class="ydp877753f0VIiyi" lang="en"><span class="ydp877753f0JLqJ4b ydp877753f0ChMk0b" data-language-for-alternatives="en" data-language-to-translate-into="it" data-phrase-index="0"><span>Good evening,</span></span><span class="ydp877753f0JLqJ4b" data-language-for-alternatives="en" data-language-to-translate-into="it" data-phrase-index="1"><span>

</span></span><span class="ydp877753f0JLqJ4b ydp877753f0ChMk0b" data-language-for-alternatives="en" data-language-to-translate-into="it" data-phrase-index="2"><span>I want to include night free cooling in my building during the summer season.</span></span> <span class="ydp877753f0JLqJ4b ydp877753f0ChMk0b" data-language-for-alternatives="en" data-language-to-translate-into="it" data-phrase-index="3"><span>How can I build a function that regulates the night ventilation air flow rate, so that free cooling occurs when I have an external temperature greater than 15 ° C?</span></span><span class="ydp877753f0JLqJ4b" data-language-for-alternatives="en" data-language-to-translate-into="it" data-phrase-index="4"><span>

</span></span><span class="ydp877753f0JLqJ4b ydp877753f0ChMk0b" data-language-for-alternatives="en" data-language-to-translate-into="it" data-phrase-index="5"><span>Furthermore, I want night free cooling to occur only in certain external temperature conditions (for example greater than 24 ° C).</span></span> <span class="ydp877753f0JLqJ4b ydp877753f0ChMk0b" data-language-for-alternatives="en" data-language-to-translate-into="it" data-phrase-index="6"><span>Thanks a lot.</span></span></span></div><div><br></div></div></div></body></html>