In fairness to all, we don't discuss pricing on the Wall. Thanks for your cooperation.
How do I hookup McDonnell & Miller Guard Dog RB-122 to Weil McLain CGI-5 Boiler
I have a Weil McLain CGI5 boiler. Previously I had a McDonnell & Miller Guard Dog RB-24 Low water cutoff (LWCO) hooked up to Weil McLain CGI-5 boiler. Since they are not sold anymore I bought a McDonnell & Miller Guard Dog RB-122. The wiring is a bit different. When I connect the 2 yellow controls from the RB-122 to the Yellow wiring (t-stat controls) on the WM control the T-stat is always on (calling for heat). I tried a different connection to the WM but ended up blowing the control module (fortunately it only cost me $70 from an Ebay seller to replace it instead of $150 & up from the local dealer). So to get my boiler to be controlled by my thermostats and not the RB-122 I have disconnected one of the RB-122 yellow cables. How should it be hooked up properly?