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Posted by JOe Brix on October 04, 2005 at 07:59:51:
In Reply to: create 2 zones posted by Holly L on October 04, 2005 at 00:23:00:
Normally, you'd wire each thermostat to each zone valve. The ZV's have and end switch wire that you can wire all the zones together. This lead will activate when the valve opens. This will switch your circulator relay on when any of the ZV's open. The only issue that the ZV's need 24V. There should be power in the circ relay. You also may have 24V power in the aquastat on the boiler. If not you'll need an additional transformer.