Hello,
we moved into a house with hydronic baseboards last year. 3 zones. Heated by a navien combi boiler. 180e model. I have confirmed there are no bleeder screws on any of the baseboard tubes. I checked everyone. I have attached pics of our set up. On one of the pics, there is a spigot looking drain valve (red handle) towards bottom of the return line on the boiler side. Could this be the bleeder the installer put in? I’m confused as to what it is.
it’s not the overflow we have the pressure relief coming off from the top of the tank
so my questions are,
1. What is that spigot drain valve ?
2. Does the pressure relief ( coming off top of tank) need to manually operated at all ever?
we moved into a house with hydronic baseboards last year. 3 zones. Heated by a navien combi boiler. 180e model. I have confirmed there are no bleeder screws on any of the baseboard tubes. I checked everyone. I have attached pics of our set up. On one of the pics, there is a spigot looking drain valve (red handle) towards bottom of the return line on the boiler side. Could this be the bleeder the installer put in? I’m confused as to what it is.
it’s not the overflow we have the pressure relief coming off from the top of the tank
so my questions are,
1. What is that spigot drain valve ?
2. Does the pressure relief ( coming off top of tank) need to manually operated at all ever?