andrewlines
- Aug 1, 2013
- 3
- Joined
- Aug 1, 2013
- Messages
- 3
Hi
Hope someone is able to help me out with this project I have.
Outline
I have a plinth fan heater run through the hot water heating system that runs on 3a 240v. The fan itself has two speed settings normal and boost.
What I'm trying to do is to connect this into the room thermostats and the home automation system so when the heating comes on so does the plinth heater. This part is easy by just connecting the heater to the power source and leave the fan on normal setting. But if the temperture in the room is below a certain level say 15C then the boost fan will come on until the temperature increases.
The room temperature is read by the home automation system whcih can then trigger a 12v relay at certain intervals. So what I was thinking is to have two relays one normally closed that will run the normal fan and when the 12v trigger is received it will open this relay then close the second relay which is normally open for the boost. Though I'm having trouble finding a SSR that is normally closed and not sure how to create a time delay for the relays to switch over.
Any help with trying to do this would be very much appreciated
Thanks
Hope someone is able to help me out with this project I have.
Outline
I have a plinth fan heater run through the hot water heating system that runs on 3a 240v. The fan itself has two speed settings normal and boost.
What I'm trying to do is to connect this into the room thermostats and the home automation system so when the heating comes on so does the plinth heater. This part is easy by just connecting the heater to the power source and leave the fan on normal setting. But if the temperture in the room is below a certain level say 15C then the boost fan will come on until the temperature increases.
The room temperature is read by the home automation system whcih can then trigger a 12v relay at certain intervals. So what I was thinking is to have two relays one normally closed that will run the normal fan and when the 12v trigger is received it will open this relay then close the second relay which is normally open for the boost. Though I'm having trouble finding a SSR that is normally closed and not sure how to create a time delay for the relays to switch over.
Any help with trying to do this would be very much appreciated
Thanks