I have an MPS Ultra with a temperature probe. Using SNMP and our billing system Vision. I like to make sure that's 77* give or take 10*.
At the end of the day if that temperature (the bottom value on the sheet) is the concern - if there's an issue with the AC unit, too much/little heat, people leaving the door open, etc it's all summed up in that one value. On Tue, May 27, 2025 at 3:35 PM Adam Moffett <[email protected]> wrote: > Does anyone here monitor air conditioners? If so, how do you do it? > > Up until now, I would find out about an A/C failure by getting temperature > alarms from equipment. When I look at the chart of temperature over time > it usually looks the A/C fail happened hours (sometimes many hours) before > the temperature got critical. It'd be nice to respond sooner. > > > - My first and cheapest idea was to run another temperature sensor > from the rectifier and attach it to the output vent of the air > conditioner. I'd trigger an alarm when that exceeds some threshold, say > 80F or 85F. > > > > - I also looked at fancy controllers with Ethernet and SNMP > that'll alert you when the filter is clogged, or detect refrigerant leaks, > or whatever. But these all seem to be vendor specific. > > > > - Bard makes a couple of Ethernet enabled lead-lag controllers that > are generic enough that I could connect them to any A/C unit with terminals > for an external thermostat, but these are very limited as to what alarms > you'll get. High and low temp alarms, and probably an alarm if the A/C > unit is off completely.....which is not a common failure mode in my > experience. Basically if you're not adding lead-lag functionality a > generic solution doesn't get much any new info. > > > Are there options I'm overlooking? I know mostly nothing about Modbus > over TCP for example....would that do anything for me? > > I actually am pushing for redundant lead-lag systems at new sites, and I > can get the controller that goes with those systems. For existing > installations I'm thinking the extra temperature sensor is the most > sensible thing. Is there a better way that I'm overlooking? > > > -- > AF mailing list > [email protected] > http://af.afmug.com/mailman/listinfo/af_af.afmug.com >
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