Hi All, My Danfoss HSA3ND motorised actuator head has packed up, its a 2 wire actuator. Can I use a 4 wire HSA3 actuator in its place and if so what do I do with the redundant 2 (switch) wires?
I can get an HSA3ND for £120 but I can get a HSA3 for about £40. You'll probably tell me to not be so...