Just added a new baseboard loop in bonus room, wiring question

wrxz24

Hi evryone, I just finished a baseboard loop in my bonus room. During construction of my house 2006, the piping to the original boiler was put in. All I had to do was make the connections to the new baseboard and voila, heat. However, I changed out my boiler in 2012 to a Triangle Tube because my entire downstairs is radiant. (concrete)

So my current set up is this, I have wired all my radiant zones together (3) ( (Main living, garage, and master bedroom)) in a taco 6 ( original relay that also controlled and indirect Water heater) relay with one tstat (with floor sensor) which is then wired to the CH 2 on the boiler. So when I get a call for heat, all 3 pumps run. However, I also have one upstairs baseboard zone and that pump and tstat is wired directly to the CH1 on the boiler (priority zone) . So when the upstairs calls for heat, the boiler heats to the water to the outdoor reset curve and the radiant heat have mixing valves so the floor doesn't over heat. When my radiant calls, the CH2 outdoor reset makes water for those zones so I get the benefit of my condensing boiler. However with this set up, the upstairs zone runs as well. Now that I have 2 zones with 2 pumps, I am not sure how to make this work with my existing set up (which isn't ideal but I made it work with my current set up. Hindsight being 20/20, I would have one zone for down stairs and on zone for upstairs so I would have had less short cycling..... So my question is this, what are my options? (Repiping is not an option right now although that would probably be ideal!) BTW, boiler is piped primary secondary.

1) Buy a separate relay for CH1
2) Get a new controls where my radiant zone can run separate from my baseboard (currently the CH1 (basebaord) has priority over the radiant, however, when my radiant is running, the baseboard circulator runs too ( no way around this with my current set up) or
3) Can I somehow splice the 2 baseboard pumps together so they operate at the same time on a single thermostat call without having to buy another relay.

Thanks in advance

GroundUp

Can you post a couple photos? Both of the entire piping layout and the current wiring situation inside the SR506? Almost sounds like something is jumped. Do you still have the indirect WH?

wrxz24

I do have the indirect but it is piped directly to the Prestige boiler as this boiler has a separate connection. I will take pics and post.

wrxz24

Here you go! The sr506 was the original relay so there were 5 zones plus the indirect with priority. This was wired to a cast iron boiler. When I got this new boiler, I removed the upstairs baseboard zone and direct wired it to the triangle tube CH1 input. In the relay now is just the 3 radiant pumps but spliced so all 3 run on one tekmar tstat with floor sensor. The fourth pump is the bonus one. The black taco pump was from the old indirect piping. That is closed off now.

wrxz24

https://forum.heatinghelp.com/discussion/148618/baseboard-zone-pump-running-with-no-heat-call#latest

This was discussed with me a few years back on this thread.

wrxz24

This is the wiring. Power from relay goes to power supply on boiler. Baseboard pump wired to CH1/diverter valve. DHW pump
goes to dhw/ diverter valve, system pump ( inside boiler pump) wired to ch 2/ system pump.

wrxz24

Here is another pic of sr506. Zone 6,5,4 are all the radiant zones. I jumped so all 3 pumps run on 1 call

wrxz24

https://forum.heatinghelp.com/discussion/147771/combining-2-zones-into-1#latest

Here is another thread from years ago. I asked if I could wire two pumps into 1 input connection. It looks like I could do this into the CH1 input. Just wire in both pumps without a relay, no?