It's been like Christmas lately with deliveries every day! we know the postie quite well now. Almost all the equipment has been delivered, pumps, PLC, HMI, valves, temperature, flow and level transmitters, heat belts, heating elements, sight glass etc. The nano pump is just awesome, put a gauge on it and get approx. 60kPa from it dead headed so will be trying a spray ball to see if there's enough pressure for a CIP of the kettle, generally you need 100kPa but will see how it goes.
Spent a good 50-60 hrs building over the past couple of weeks and have finished most of the mechanicals to the point where today I filled the HLT with water and transferred it to mash and HLT and then back to HLT again checking for leaks. Also wired up one of the 5kW HLT heaters temporarily to prepare for a brew day next weekend, plan to do a 100ish L batch to test the system just manually switching pumps and heaters etc as the electrical is still a while away.
Still finalising electrical design and ordering all the required electrical parts but I have got the panel backing plate cut and ready to start assembling once all parts arrive. I have got the PLC and HMI temporarily wired to start working on the programming side while I spend the next couple of months on the electrical panel.
Decided to incorporate a HERMS/RIMS on the mash tun. It has a central tube of heated oil with a 4500W element surrounded by a 12mm jacket of wort and then some insulation on the outside. The surface area is less than a coil style herms but I wanted to give it a go anyway. The mash tun also has 4kW of heating in a heat belt so mash ramping should be ok even though I don't plan on doing much step mashing on this system, it's really just for fun at this stage.
Really really happy with how it's shaping up.