Post By Barry O'Speedwagon
Machine cool down process
Interested in some words of wisdom in regards machine cool down processes.
I've got a preference after powering off my machine to open the steam valve to reduce internal boiler pressure on my venerable lever machine.
Im working on the assumption that while the system is designed to operate under pressure it's probably easier on gaskets etc to get the pressure down asap.
The whole process could be my latent OCD kicking in but I've started to wonder if this is good / bad / neutral.
My understanding is that the major reason for opening the steam valve when switching off (and leaving off until boiler re-heats) is to avoid 'false pressure' being detected when you start up the machine, as a valves can 'stick'. With machines that have an anti-vac valve probably unnecessary...but can't see how it would hurt.