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Tekmar 306P to Tekmar 261

RIDIY
Member Posts: 3
Sorry for noob question, but I am trying to add some heating zones to what was a multi stage single zone hydronic system. I am inserting a Tekmar 306P to run pumps for each zone but am failing on the connection between between the boiler output of the 306 and the boiler demand on the 261. I believe I just need to add a 24v transformer but can't figure out the wiring.
Any help would be appreciated.
Any help would be appreciated.
0
Comments
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Yes you'll need a 24v transformer. One big series loop from transformer to 306 to 261 back to transformer. When any zone calls, the end switch is made, closes 9/10 on the 261 to fire the boiler.steve0
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Just to make sure I am understanding, The transformer is wired to both the 261 boiler demand (jack 1) and 306 boiler(jack x1) and the 261 boiler demand(jack 2) and 306 boiler(jack x2) are connected together?STEVEusaPA said:Yes you'll need a 24v transformer. One big series loop from transformer to 306 to 261 back to transformer. When any zone calls, the end switch is made, closes 9/10 on the 261 to fire the boiler.
Thanks for the help.0 -
I think like this?
steve0 -
Thanks again, worked like a charm once I swapped out the dead transformer...0
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