An idea that I've been toying around with is exchanging the brew SSR with a dimmable relay. In this scenario, whenever the steam boiler is off the brew element can operate at the full 2000W. However, when the steam boiler energises this could auto-dim the brew boiler SSR down to say 600W. However looking at dimmable SSRs they are expensive (around $90 on RS components).
Once the brew boiler is up to temp, you don't really need 2000W especially if you have pre-heat through the steam boiler. Obviously this may cause issues with pid tuning.
Once the brew boiler is up to temp, you don't really need 2000W especially if you have pre-heat through the steam boiler. Obviously this may cause issues with pid tuning.


Comment