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Controlling Variable Speed ECM Circulators Grundfos Alpha with AutoAdapt
HYDRONICGUYEMCO
Member Posts: 3
If you use this type of circulating pump do you require a pump controller.
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Comments
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The pump usually wires into the boiler control or computer or a relay box.0
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What type of system do you have zone valves, TRVs? Which model Alpha? Some models have a summer function which exercises them occasionally to prevent sticking over no use periods, so they need to be plugged in to a constant power source to use that function.
https://www.youtube.com/watch?v=J_elAwebxcEBob "hot rod" Rohr
trainer for Caleffi NA
Living the hydronic dream0
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