Best Of
Re: Main vent making loud noises
I'm gonna guess it's not the bigmouth, but the main dragging itself across a support or hanger somewhere as the main expands, or contracts, find the binding spot and slip in a piece of milk carton plastic to allow for a slipp
Re: Tekmar 360 Control- Assistance Needed
I usea small stainless hose clamp. Yes insulation over it. A chunk of fiberglass even if you don't have pipe insulation.
The tekmar sensors have a small dish groove in the sensor so they fasten to pipe well.
You can change and adapt if the system doesn't do exactly what you want the first attempt.
Write down the settings as you make them to keep track of what change makes what difference.
I imagine many controls go in with factor default settings, no one comes back to fine tune it to the exact application. So for the homeowner to learn settings and adjustments really maximizes what the control can do for you.
I just bought an EV truck, it may take the rest of my life to figure out all the settings and options, which they update on a weekly basis!
hot_rod
Re: 24 Volt transformer blowing
Can you trace visually along the problem wire and find where it is damaged and shorting?
Re: Hydronic Baseboard Gap
Rooms with a lot of glass tend to feel "cold" even though the ambient is warm. Your body heat is being pulled to the cold glass. AKA the "cold 70 effect"
Use an accurate thermometer to adjust the wall thermostat reading. There is a differential in the thermostat 1.5- 2° that may be adjustable also. Pull out the manual on your thermostst.
The wall thermostat is on an inside wall?
This smiling gentleman explains cold 70 the concept well.
hot_rod
Re: Tekmar 360 Control- Assistance Needed
What I find that helps with tekmar sometimes is to look at their application guide
Re: Explain This Relay!
My guess is similar to @mattmia2
I would guess they went to 1 stat for whatever reason so the stat would open both valves and pull in the relay coil. The relay contacts would act as the end switch and fire the boiler. Not exactly right but I guess it works.
The boiler and circ shouldn't run until the valves open but with no valve end switches(s) it can't be done
Re: Mono flow system upgrade
I assume you're replacing what you have for radiation and not altering the basement piping except to connect the new baseboards. If that's the case, you should be fine. Put bleeders on the return side. You may not get as much heat out of standard baseboard as the convectors put out as the elements are smaller unless you extend the baseboard length.
Re: Pressuretrols and Gauges
you can disconnect one of the t-stat wires at the boiler and see if it still happens. if the anticipator setting in the t-stat is way off it could turn iff the boiler before you really get any heat from the house to the t-stat.
Re: Pressuretrols and Gauges
Test equipment like a multi-meter is the most common way to perform testing, but that is not the only way. If you can carefully disconnect one wire at the thermostat and see if the boiler starts, you may have to wait a while. While disconnecting the one wire look for dilapidated insulation causing the thermostat wires to touch and bypass the thermostat, it does not take much.

