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System upgrades and voltage question

System upgrades and voltage question

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10-11-09, 03:18 AM

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Swampdog

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System upgrades and voltage question

I have added zone valves to an older system that had been running with flow controllers. The pump relays for those zones have a 12 VAC output on the low voltage side, but the zone valves operate on 24 VAC. Is there a problem with adding a transformer after the controller and stepping that 12 up to 24, or do I have to replace the two controllers?

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10-11-09, 09:10 PM

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Swampdog

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I was checking with a friend of mine earlier today, and he drew out the diagram of the relay. In doing so, the answer to my questions became clear-it will be better to go ahead and replace the controllers with 24 volt models.

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