Recent content by Hypersonic

Hi Stem, Thanks for the diagram. Yes it must be a VA-1 Switchmaster mid point 3 way valve since it has 6 wires including Red & Orange and Earth. It adds to the rest of the info I have amassed. I'm now sure that I have enough info to plot how I'm going to tackle this job. A very helpful guy...

Hi All, I'm a new member to this forum and I'm hoping that one of you with a good memory, or tidy records, will be able to help. In short I'm looking for an old switch master wiring diagram, one that uses a mid position VA1 valve (6 wire) and SM300 controller. Yes I know this kit is obsolete...