switching relay; problems with pumps
I have a taco 2 zone switching relay. 2 thermostats are supposed to power 2 separate pumps. my problem is that when either one (thermostats) calls for heat both of the pumps respond. where did I go wrong. thanks
I have a taco 2 zone switching relay. 2 thermostats are supposed to power 2 separate pumps. my problem is that when either one (thermostats) calls for heat both of the pumps respond. where did I go wrong. thanks
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Replies
You miswired it.
do you have a picture of the wiring?
I'd first point out that you need two relays to control two pumps with two thermostats.
A more detailed description of your setup would be helpful.
I read it as he has a 2 zone relay.... DPDT/CO or similar or even a NO/NC/NO contactor....
but like ya said... more info please...
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You mean an interlocking relay, so they don't both come on at the same time?
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It is more than a simple relay.http://www.taco-hvac.com/uploads/FileLibrary/SR502(102-082).pdf
http://www.taco-hvac.com/en/products/Switching%20Relays/track_file.html?file_to_download_id=17062http://www.blueridgecompany.com/radiant/hydronic/427My guess is that it is miss wired..
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A-holes. Hey every group has to have one. And I have been elected to be the one. I should make that my tagline.
Are you using electronic stats?
Is it a SR502?
Did you the jumper in the wrong place?