The more I read and think about it, the more questions I have (sound familiar?). Anyway, here are a few questions for those of you who have been there.
1. I notice everyone using 40 amp SSRs even on 110V 20 amp circuits. (Say, like a 2000 watt element. Why not a 25 amp SSR? These things are supposed to be built with safety factors (headroom) built in already, and the breaker would go at 20 amps(15 for some) so it would seem to be overkill. Did I miss something?
2. I'm going to use a RIMs tube to heat up the HLT, then switch the valves and use it to recirc (and likely mashout) the MLT. If I autotune the PID for the HLT, will it work correctly for the recirc? Seems like the flow rates could be quite different, meaning less work to raise temperature. So is the "tune" needed different as well? Should I use two different PIDs? (Newbie to PID controllers here).
3. When one first starts recirculating, there will be some grain particles going through the RIMs tube. Are there any issues with scorching to be addressed?
More questions, but they probably belong in the automation section. There seems to be some overlap with DIY, automation, and electric brewing, so I never know where to ask.
1. I notice everyone using 40 amp SSRs even on 110V 20 amp circuits. (Say, like a 2000 watt element. Why not a 25 amp SSR? These things are supposed to be built with safety factors (headroom) built in already, and the breaker would go at 20 amps(15 for some) so it would seem to be overkill. Did I miss something?
2. I'm going to use a RIMs tube to heat up the HLT, then switch the valves and use it to recirc (and likely mashout) the MLT. If I autotune the PID for the HLT, will it work correctly for the recirc? Seems like the flow rates could be quite different, meaning less work to raise temperature. So is the "tune" needed different as well? Should I use two different PIDs? (Newbie to PID controllers here).
3. When one first starts recirculating, there will be some grain particles going through the RIMs tube. Are there any issues with scorching to be addressed?
More questions, but they probably belong in the automation section. There seems to be some overlap with DIY, automation, and electric brewing, so I never know where to ask.