diff --git a/README.md b/README.md
index 42711b5..d2c0209 100644
--- a/README.md
+++ b/README.md
@@ -290,6 +290,7 @@ Additionally, you can think "I'll take an old AC parts... Housing... Slightly ch
 Ok, I think that's enough for this appendix, this is a controller page, and not how-to-build-refrigeration-systems page.<br>
 Overall, your system with sensor locations will look like at a scheme below. Refrigerators (heat pumps) are simple devices.<br>
 <img src="./m_Valden_Heat_Pump_Controller_model.jpg" width="1000"><br><br>
+Your system will be started or not run depending on Thi temperature. For the end user it looks like installing the temperature of the warm floor, comfortable at the moment via Remote Display.
 
 ## Appendix D: Firmware options and fine-tuning