Circulator pumps tripping motor starter and panel. both pumps
this panel is An alarm panel I’m assuming it rings whenever the circulator fails? Just want to know more about it thanks. 11-3-24( Turns out it is a low water temp alarm system. It kills the motor starter if the water temp isn’t high enough.)
Comments
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Either you took a job where no one ever maintained anything or you replaced someone that had been there for 40 years and knew how it all worked and just fixed it when it broke.
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If you can't find a schematic and sequence of operations for that panel, you'll need to either create them yourself—or replace it with a new panel. Looks like a lead-lag pump controller with rotation and some kind of voice call-out function, presumably for a high water alarm.
Sump pumps in a high-end home?
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this is a heating loop in a nursery home, and that sounds fair.
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I got it all set. I think you’re right though no one left any diagram or anything. I think it’s just an alarm system for the pumps, but it doesn’t say what it is monitoring.
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I could be wrong, but the panel does not look factory built to me looks like someone built it on site. Nothing wrong with it but if it lacking a schematic make one and post it in the panel
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The black box on the left is a time clock with the (red) off trippers removed so that it basically doesn't do anything any more. The Idec RTE is a programmable timer module, need to know the model number & mode (li'l window on the bottom left) to figure out what it's doing. The clear relay to the right of that is the control relay for pump 1 (if the labeling can be believed). To the right of that is a recpt and wall wart that powers the Altronix 12 VDC power supply/battery charger underneath & leftish to it. Direct left of that is a PAM relay. Left and below that is the control relay for pump 2, right of that is an Eagle Signaling Controls timer relay (again, need model number to know which one). Right of that is a voice dialer module (switched off, for some reason)/. On the bottom is the battery that the power supply charges. likely to power the dialer.
I suspect the logic is line voltage, so be careful poking around in it.
It's hard to guess without more information, but I'd say that it alternated pumps on a run timer or if the lead pump didn't prove itself after some amount of time; and dialed out to play a pre-recorded message if a failure was detected.
What, exactly, is 'tripping'? The pump starter overloads? Pump circuit breakers (one for both, or one per pump)? The breaker that feeds this panel (it seems to be powered up ATM)?
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looks like the plug in transformer has been awful hot.
Bob "hot rod" Rohr
trainer for Caleffi NA
Living the hydronic dream0 -
it actually seems to be a low water temp alarm, which will kill the motor starters for the pumps if the temp isn’t high enough. I’ve never heard of a need for something like that. That’s what they have here.
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I've seen several of that type of plug-in transformer and they all look like that after ten years or so. The plastic is the culprit, not necessarily an overload.
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