<html><head></head><body><div class="yahoo-style-wrap" style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:16px;"><div><span style="color: rgb(0, 0, 0);">good evening everyone,</span><span class="ydpccf83ddbJLqJ4b" data-language-for-alternatives="en" data-language-to-translate-into="auto" data-phrase-index="1" style="color: rgb(0, 0, 0);"><span> </span></span></div><div><span class="ydpccf83ddbJLqJ4b" data-language-for-alternatives="en" data-language-to-translate-into="auto" data-phrase-index="1" style="color: rgb(0, 0, 0);"><span class="ydpccf83ddbJLqJ4b ydpccf83ddbChMk0b" data-language-for-alternatives="en" data-language-to-translate-into="auto" data-phrase-index="2" style="cursor: pointer;"><span>I have to simulate the operation of a heat pump (type 941) to power the cooling fan coils.</span><span class="ydpccf83ddbJLqJ4b" data-language-for-alternatives="en" data-language-to-translate-into="auto" data-phrase-index="3"><span> </span><span class="ydpccf83ddbJLqJ4b ydpccf83ddbChMk0b" data-language-for-alternatives="en" data-language-to-translate-into="auto" data-phrase-index="4" style="cursor: pointer;"><span>I have a cold storage located between the heat pump and the distribution circuit.</span> <span class="ydpccf83ddbJLqJ4b ydpccf83ddbChMk0b" data-language-for-alternatives="en" data-language-to-translate-into="auto" data-phrase-index="5" style="cursor: pointer;"><span>in particular I have to build a control that turns the heat pump on and off according to the temperature leaving the storage, which goes into a mixer in which it mixes with part of the flow rate of the return fluid from the fan coils.</span><span class="ydpccf83ddbJLqJ4b" data-language-for-alternatives="en" data-language-to-translate-into="auto" data-phrase-index="6"><span> </span><span class="ydpccf83ddbJLqJ4b ydpccf83ddbChMk0b" data-language-for-alternatives="en" data-language-to-translate-into="auto" data-phrase-index="7" style="cursor: pointer;"><span>my goal is to build this control that makes me have a delivery temperature to the fan coils equal to 10 degrees, making the heat pump work when I don't have this temperature.</span><span class="ydpccf83ddbJLqJ4b" data-language-for-alternatives="en" data-language-to-translate-into="auto" data-phrase-index="8"><span> </span><span class="ydpccf83ddbJLqJ4b ydpccf83ddbChMk0b" data-language-for-alternatives="en" data-language-to-translate-into="auto" data-phrase-index="9" style="cursor: pointer;"><span>i have to use type 2d.</span></span></span></span></span></span></span></span></span></span></div><div><span class="ydpccf83ddbJLqJ4b" data-language-for-alternatives="en" data-language-to-translate-into="auto" data-phrase-index="1" style="color: rgb(0, 0, 0);"><span class="ydpccf83ddbJLqJ4b ydpccf83ddbChMk0b" data-language-for-alternatives="en" data-language-to-translate-into="auto" data-phrase-index="2" style="cursor: pointer;"><span class="ydpccf83ddbJLqJ4b" data-language-for-alternatives="en" data-language-to-translate-into="auto" data-phrase-index="3"><span class="ydpccf83ddbJLqJ4b ydpccf83ddbChMk0b" data-language-for-alternatives="en" data-language-to-translate-into="auto" data-phrase-index="4" style="cursor: pointer;"><span class="ydpccf83ddbJLqJ4b ydpccf83ddbChMk0b" data-language-for-alternatives="en" data-language-to-translate-into="auto" data-phrase-index="5" style="cursor: pointer;"><span class="ydpccf83ddbJLqJ4b" data-language-for-alternatives="en" data-language-to-translate-into="auto" data-phrase-index="6"><span class="ydpccf83ddbJLqJ4b ydpccf83ddbChMk0b" data-language-for-alternatives="en" data-language-to-translate-into="auto" data-phrase-index="7" style="cursor: pointer;"><span class="ydpccf83ddbJLqJ4b" data-language-for-alternatives="en" data-language-to-translate-into="auto" data-phrase-index="8"><span class="ydpccf83ddbJLqJ4b ydpccf83ddbChMk0b" data-language-for-alternatives="en" data-language-to-translate-into="auto" data-phrase-index="9" style="cursor: pointer;"><span class="ydpccf83ddbJLqJ4b" data-language-for-alternatives="en" data-language-to-translate-into="auto" data-phrase-index="10"><span> </span><span class="ydpccf83ddbJLqJ4b ydpccf83ddbChMk0b" data-language-for-alternatives="en" data-language-to-translate-into="auto" data-phrase-index="11" style="cursor: pointer;"><span>thanks and best regards.</span><span class="ydpccf83ddbJLqJ4b" data-language-for-alternatives="en" data-language-to-translate-into="auto" data-phrase-index="12"><span> </span></span></span></span></span></span></span></span></span></span></span></span></span></div><div><span class="ydpccf83ddbJLqJ4b" data-language-for-alternatives="en" data-language-to-translate-into="auto" data-phrase-index="1" style="color: rgb(0, 0, 0);"><span class="ydpccf83ddbJLqJ4b ydpccf83ddbChMk0b" data-language-for-alternatives="en" data-language-to-translate-into="auto" data-phrase-index="2" style="cursor: pointer;"><span class="ydpccf83ddbJLqJ4b" data-language-for-alternatives="en" data-language-to-translate-into="auto" data-phrase-index="3"><span class="ydpccf83ddbJLqJ4b ydpccf83ddbChMk0b" data-language-for-alternatives="en" data-language-to-translate-into="auto" data-phrase-index="4" style="cursor: pointer;"><span class="ydpccf83ddbJLqJ4b ydpccf83ddbChMk0b" data-language-for-alternatives="en" data-language-to-translate-into="auto" data-phrase-index="5" style="cursor: pointer;"><span class="ydpccf83ddbJLqJ4b" data-language-for-alternatives="en" data-language-to-translate-into="auto" data-phrase-index="6"><span class="ydpccf83ddbJLqJ4b ydpccf83ddbChMk0b" data-language-for-alternatives="en" data-language-to-translate-into="auto" data-phrase-index="7" style="cursor: pointer;"><span class="ydpccf83ddbJLqJ4b" data-language-for-alternatives="en" data-language-to-translate-into="auto" data-phrase-index="8"><span class="ydpccf83ddbJLqJ4b ydpccf83ddbChMk0b" data-language-for-alternatives="en" data-language-to-translate-into="auto" data-phrase-index="9" style="cursor: pointer;"><span class="ydpccf83ddbJLqJ4b" data-language-for-alternatives="en" data-language-to-translate-into="auto" data-phrase-index="10"><span class="ydpccf83ddbJLqJ4b ydpccf83ddbChMk0b" data-language-for-alternatives="en" data-language-to-translate-into="auto" data-phrase-index="11" style="cursor: pointer;"><span class="ydpccf83ddbJLqJ4b" data-language-for-alternatives="en" data-language-to-translate-into="auto" data-phrase-index="12"><span class="ydpccf83ddbJLqJ4b ydpccf83ddbChMk0b" data-language-for-alternatives="en" data-language-to-translate-into="auto" data-phrase-index="13" style="cursor: pointer;"><span><br></span></span></span></span></span></span></span></span></span></span></span></span></span></span></div><div><font color="#000000"><span style="caret-color: rgb(0, 0, 0);">Angeli Filippo</span></font></div></div></body></html>