How can I change a normally open switch to a normally closed. My Alarm panel needs NC and my boiler alarm is NO.
I want to attach my boiler to my alarm panel to an extra zone I have. Problem is my alarm panel wants to see it NC until there's trouble and then wants to see it NO when it's tripped or in alarm. My boiler alarms points are NO until the boiler goes into lock out and then it goes NC. I would like to know if there is a way to add "something" so that i can monitor my boiler and know if it goes into alarm. My boiler is a Weil Mcclain Ultra seris 3 with a U-control system if that helps.