PID sur une machine HX??

calblacksmith a écrit:Your idea is not new, it has been kicked around a lot.
The cooling flush is NOT temp surfing. The water in the HX circuit is over temp but the water in the boilier is correct. Once the over temp water is cleared from the system then your temps will be very consistent and at the proper temp, unlike temp surfing on a Sylvia where you try to catch the correct temp based on holding your mouth just correct, licking your finger and seeing which way the wind is blowing, watching lights and timing since they turn on or off and even then not knowing what you are really getting.

The big problem with what you are doing is that when you drop the temp of the boiler to brew temp then as you expect, the water in the HX will get to that temp and stay there all day. When you pull the shot then you get ONE shot at the proper temp, then you need to wait for the water to heat again. The volume of the HX system is designed around the steam boiler being set for steaming, the flow of water through the HX system is heated to the proper temp when the boiler is at the proper temp. If you only want to pull one shot, wait 10 minutes then pull one shot, it will work. If you want to pull two or more shots in a row then you will be hopelessly too cold on the second and following shots. What you will have achieved is turning a well designed HX machine into a poorly operating SBDU.

H@R a écrit:Sur le sujet, je partage de plus en plus l'avis de zeb (sans avoir poussé les essais très loin) que le flush est une conn**** (bullshit) sur une machine avec HX.