Wayco Wayne and Multiple Temps Piping.....Boilerpro

Boilerpro_3

I hope this gives you a good idea of what alot of words would give a poor idea. Those are the balance valves on the left on the rungs..flow is to the right. If you want to sit down and figure pressure drops and injection rates, you can preset a bunch of circuit setters and then install them. You can just flip the switch and have all the temps you need.

Oh, and that Phase III is going to be serving double duty. It is going to be piped in immediately before the boiler return to act a a thermal buffer to extend burner run times and provide domestic hot water.... with no additional pumps necessary Since the boiler return is always at a minimum of 140F it will always supply hot water in the winter and can be easily brought on in the summer trough the boiler or tekmar control.

The second attachment is a simple two temp setup. Its a little confusing, but if you think like water you can see how its works.

Both panels are using conventional boilers with a thermix valve for boiler protection and a Tekmar 260 control set for full reset.

Using a complex control doesn't make much sense to me for a continuous circ (or nearly continuous) since the high temp zone is nearly always calling for heat, so the boiler will nearly always be running on the highest reset curve. I don't think you'll see much efficiency benefit when using a condensor with multiple curves versus one with a single curve and fixed mixing for lower supply water needs.

Boilerpro