Controlling the boiler with a new zone

Ricopp

I've got an existing system controlled by a simple stat... then we added some infloor heat in the basement using its own circ & stat. Now, the homeowner wants to maintain a warm floor (basement) even though the main floor stat is not calling for heat... what control strategy would one use to allow the boiler to fire on a call from either stat?
Thanks in advance

Big Ed

Need a Relay

Your going to need a relay to turn on burner. Depend on the set up where and how to wire it in.

Ricopp

Relay needed

I kind of figured as much, but now, will there be any current or voltage feedback issues that might arise from the dual connection to the boiler?

Ron Schroeder

If you only

have the two zones get a Taco SR502 zone relay and it will come with instructions should have no feedback issues, if you might be adding a zone in the future or want outdoor reset then get the WSR503EXP or SR504EXP.

Ricopp

Thanks

Thanks guys, I'll look into the Taco relay stuff