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System Circulator questions
northlakes
Member Posts: 95
in Gas Heating
The Grundfos circulator (hydronic baseboard, mod-con) I currently have has been wired for constant on, my assumption has been that previous owners were concerned about pipes freezing, so they removed a zone valve to keep the perimeter loop moving (which contains a pipe run in a concrete trench crossing a garage door threshold.)
Feels like this pump is starting to make more noise than before and I’m considering getting a back up as follows:
old pump Grundfos UP 43-75-F
new pump Taco 0012-F4
I don’t know if the pump is getting too much wear from continuous use, I turn off in summer but back on in fall and it runs until spring. When/if I replace the pump I’m considering adding some kind of OD temp sensor + relay that will run the pump continuous below certain temperature, but allow it to run intermittent on heat calls above that temp.
Feels like this pump is starting to make more noise than before and I’m considering getting a back up as follows:
old pump Grundfos UP 43-75-F
new pump Taco 0012-F4
I don’t know if the pump is getting too much wear from continuous use, I turn off in summer but back on in fall and it runs until spring. When/if I replace the pump I’m considering adding some kind of OD temp sensor + relay that will run the pump continuous below certain temperature, but allow it to run intermittent on heat calls above that temp.
Anyone done anything lIke this?
1
Comments
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That is a fairly large pump, what size is this system, or boiler?
Anytime you are running flow you are consuming $$Bob "hot rod" Rohr
trainer for Caleffi NA
Living the hydronic dream1 -
Yes you can use an outdoor temp control to operate the pump when the temp is below 35 or so.
2 -
It’s 3 floors, (2 above boiler about 2500 sq ft. above and 1500 at boiler level, 2 floors above are perimeter loops only) boiler is IBC VX199. I don’t like wasting money on electric but a frozen/busted pipe could cost us far more…hot_rod said:That is a fairly large pump, what size is this system, or boiler?
Anytime you are running flow you are consuming $$0 -
How often do you loose power for extended times.northlakes said:It’s 3 floors, (2 above boiler about 2500 sq ft. above and 1500 at boiler level, 2 floors above are perimeter loops only) boiler is IBC VX199. I don’t like wasting money on electric but a frozen/busted pipe could cost us far more…0 -
How about some pictures/piping diagrams and what controls on your system.
There was an error rendering this rich post.
2 -
Almost never lose power for more than a few minutes. I will get some pics of the equipment.pecmsg said:How often do you loose power for extended times.0 -
@STEVEusaPA it’s a primary secondary with individual boiler circ and a system circ which is the one I want to get a replacement for. ZVC 4 zone using 3 zones now and assume I can use it to control system circ relay as well. System circ currently hardwired with on off toggle switchSTEVEusaPA said:How about some pictures/piping diagrams and what controls on your system.
0
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