Originally Posted by SMAMBT
Does there need to be a jumper from #7 to #9 or is it internal ? Getting ready to wire my LOVE TS 3 and test ...
there are internal connections.
pins 7 and 9 form a "normally closed" switch, which means that (normally) the voltage applied to pin 9 is available on pin 7.
When the controller triggers the relay, then the connection between pins 9 and 7 are broken, and a new connection between pins 9 and 8 is formed.
trigger point not reached = pin 7 is "live" and connected to pin 9 (internally). pin 8 is not connected to anything.
trigger point reached = pin 8 is "live" and connected to pin 9 (internally). pin 7 is not connected to anything.