<html><body><div style="color:#000; background-color:#fff; font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:18pt"><div>Hi,</div><div>I work on optimization of heat pump. I use type 927 as heat pump and for tank, type4a. But i have a problem of function conditions. I don't know how i indicate my heat pump works if temperature in my tank < 65°C and stop when temperature of tank > or = 65°C. </div><div>Don't forget my load and source températures.</div><div> </div><div>Thank you!</div><div> </div><div>P.S: My English is not very good! If you can give me your answer in french, it's excellent but if in English, it's ok. </div></div></body></html>