relay question

Hello, I am wiring a new Dunkirk boiler, with two zone valves(honeywell 4 wire) and one circulator pump. The handy box on the side of the boiler has 3 pairs of wires, 2 yellow labeled THERMOSTAT, a black and white labled CIRC. PUMP, and a black and white labled POWER, IS IT NECESSARY TO HOOK UP A RELAY BOARD FOR THIS SYSTEM ?( I have the ARGO AR861-2).
When I feed the bioler power leads with 110V, the yellow stat wires will supply 24v to my two thermostats, and I could control the zone valves through them. (not utilizing the end switches), The circ. pump would be wired directly to the appropriate leads, seems I would not need the relay at all, is this correct?

Thank You, fbar.

 

This relay is intended for systems using multiple circulators. Do not use it on a zone valve system.

 

Thanks Grady, Am I correct in saying I dont need a relay at All?

 

You are correct. It does not need a relay. Depending on the aquastat, you may need to install a 40 VA transformer to power the zone valves.