Zone valves on backwards

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Old 10-18-18, 07:36 AM
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Zone valves on backwards

My son bought a house a few years ago and always complained about going through a lot of propane during the winter. I went over to check it out and found that his zone valves are all on backwards, would this give him poor water restriction causing him to use more propane to heat his home? He has 6 zones and using Auto Mag zone valves..
 
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Old 10-18-18, 09:47 AM
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g,
Zone valves are unidirectional allowing the water to flow in only 1 direction. There is an arrow on the body of zone valves indicating the way they are to be installed and the direction of the flow.

If installed backwards the water cannot flow pass the ZV to the emitters and there will be no heat delivered.

The valves installed the wrong way would cause more fuel to be used because of the fact that the hot water could never get to the baseboard so the stats would never be satisfied and continue to call for the boiler to operate.

The boiler would run to high limit and shut off and when the boiler temp cooled naturally it would come back on and just keep cycling as long as the stats called providing no heat to the house.


Hope this helps a little
 
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