I spent the day today piping in two big cast iron radiators and replacing a defective zone valve. My problem is as soon as I turn the power on the zone valve opens and turns on the circ. Any thoughts ??? The zone valve is a Honeywell modelV8043E, its is different than the one I had in there because this one has wire leads and last one had terminals. Starngley enough when I turn the thermostat down the circ is on and when the theromstat is turned up the circ goes off. i would appreciate any help as I would like to get be on line today so I can get the house heated..