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ZSR Series switching pump relays. Caleffi
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Harvey Ramer
Member Posts: 2,281
0
Comments
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I know the Gen. ll has a primary pump contact and 3 aux/ end sw terminals.
if the box has a roman numeral ll on the end it is a second generation.
Bob "hot rod" Rohr
trainer for Caleffi NA
Living the hydronic dream0 -
Thanks Bob0
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