Recent content by BuzzP

I am replacing a Switchmaster VA1 with a Siemens DVA3. The Switchmaster has 6 wires and the Siemens 5. Can anyone confirm the correct connections. Currently I have (Sw then Sie): White --> Grey, Yell --> White, Orange--> Orange, Red---> linked to orange; Blue --> Blue, Green --Yell/Grn...

Hi, I am replacing a Switchmaster VA1 3 posn valve with a Honeywell V3073A. I have worked out the wiring to covert between the 2 valves, but in order not to move any pipes I would have to install the Honeywell upside down (drive head at the bottom). Is there any issue with this? I...