With the latest plumbing order not expected until Tuesday / Wednesday it's time to turn my attention to the electrical requirements of the cabinet. Faily simple really:
16 amp / 3 phase input socket
3 phase on / off switch
Motor starter / over current unit for pump (salvage from original chiller)
12 volt DC supply for temperature indicators (already have one)
A few DIN rail bits and terminals (got)
A box to put it all in
Now the box - could I use the one from the original chiller? It's really too big, and rather rusty. Too big doesn't matter, and the rust is no major problem so long as the paint on it will 'feather edge' as I don't want to have to strip all the paint off.
So I started stripping out all the electrical gubbins from the original cabinet, and when I had a bare box did an experimental de-rusting with a sanding disk, wire wheel and stripping disk. I decided that it actually was feasible, so giving it a good clean up I've given it a coat of hammer finish blue.
Some of you might think that the paint scheme is remarkably similar to that I used on the 110 KVA generator - there's a good reason for that

I've not sprayed the door as I need to make holes in it for the temperature indicators and also a door interlock switch that I have ordered that will double up as an on / off switch