Continuous or Intermittently running circulator pump, which is best


Old 12-12-11, 08:49 PM
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Join Date: Dec 2011
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Continuous or Intermittently running circulator pump, which is best

My house has 3 zones using taco-571 valves. There is one circulator pump that runs on 110v. It is running continuously year round unless I disconnect the two wires on the furnace control panels. Pulling the two wire going to 24v terminals shuts off pump.

Each valve is controlled by its own thermostat and I was wondering if that valve is suppose to run all the time. Over the summer I disconnected the two wires letting it get power to turn it off. Does it matter which way I re-connect them (I forget which wire went to which terminal..thin 24v wiring)

I swear my oil bill dropped over the summer and my basement was cooler just by disconnecting that circ pump. Only thing I can think of is that the zoning was a retrofit and they original Owens never wired it up properly.
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Old 12-13-11, 09:11 AM
Join Date: Feb 2011
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Doesn't sound correct at all.
Hard to follow the set-up.
Please try and take some clear large picture from different angles.

Old 12-13-11, 11:50 AM
Join Date: Nov 2011
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Constant circulation for 3 zones in a home? I'm not a pro, but even to me that doesn't sound right. Most systems only run the circulator when there is a call for heat.

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