Posted Sat Nov 4, 2006, 6:37pm Subject: PID'ing an HX machine -- any experience out there?
I just noticed that Chris' Coffee is offering through a 3rd party an optional PID for the Alexia and Vetrano. I can see why it would be nice for a single boiler, but I didn't originally see the benefit for an HX machine. After thinking about it, however, it might turn an HX machine into a poor man's double boiler and give extremely stable brewing temps.
So, anyone have any experience or comments they might share on PID'ing an HX machine? Michael
Posted Sat Nov 4, 2006, 7:00pm Subject: Re: PID'ing an HX machine -- any experience out there?
Hi Michael,
On alt.coffee the third party guy is daveb. There's discussions on alt.coffee about the pros & cons of PID'ing an HX machine over there. He also has a web site & an ebay store.
I installed a Watlow 935A PID on my Bunn ES-1A HX this weekend. Once I got all the parts and (especially the) information together it was an hour or two to complete the job. I haven't used it enough yet to tell you if the temperature is more stable but I can tell you it's a lot quieter without the pstat & tstats clicking on & off. For that reason alone I'd recommend the PID for HX machines.
If you can change a light bulb & read & follow directions it's an easy enough do-it-yourself project; besides it'd cost big $$$ to ship most HX machines by common carrier. I'm getting things ready to PID a Nuova Simonelli MAC 1-group next. The hardest job will be figuring out how to remove the exterior panels so I can have access to the interior parts. I could do the install by just removing the top panel (AKA cup warmer) but I figure this would be a good opportunity to take a look at the general condition of the machine.
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