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Re: Can I install the Nest Power Connector with this old Honeywell system?
You may well be able to MacGyver it. I'd have to be there and check all the wiring to be sure as to what goes where and check the phasing.
Why not make life simple for yourself (and the next guy who has to work on it?). Get a nice new 24 VAC, 40 volt ampere transformer. Hook the Nests up to that (you'll need three wire minimum cable). Use the Nests to control simple SPST relays. Run the present thermostat wires to the NO contacts on the relays.
Done.
Why not make life simple for yourself (and the next guy who has to work on it?). Get a nice new 24 VAC, 40 volt ampere transformer. Hook the Nests up to that (you'll need three wire minimum cable). Use the Nests to control simple SPST relays. Run the present thermostat wires to the NO contacts on the relays.
Done.
Re: Grundfos Alpha 15-55 Pumps don't restart after long shutdown
Address the water quality problems and figure out a way to "exercise" (exorcise!) the circulators off-season. Find a hydronics "priest"?
psb75
1
Re: The last word about c-wire thermostats and wiring diagrams.
ED: "To the Moon!"
Re: Where do you buy your little electrical fittings?
Well if it won the Home depot award of the year it must be good....
Re: The last word about c-wire thermostats and wiring diagrams.
No one's going to mention 4 way switches?
ChrisJ
1
Re: The last word about c-wire thermostats and wiring diagrams.
Three-way switches get confusing when you are standing there looking at a bunch of wires in a box. I drew it the "normal" way and below that is another variation ....and there are a couple of other possibilities as well.there are a few more if you ignore the part of the code about balancing currents
mattmia2
1
Re: Correcting the code inspector
When I was young I had way more issues. Late bloomer, I looked 5 years younger than I was. At 27 I was running radiant projects for my own company in SF. Inspectors were unsure of me. Most didn't have clue about boilers much less ones with PVC as a flue. (they had just approved it in the city) I found there where generally three cases: Badge waver bullies who don't care about code, you or the customer, the genuinely ignorant and willing too learn and the ones who were right. When I was 100% sure I was right after check manuals or the code. I would appeal to sight code then logic and when the dull look in the eyes was apparent, I'd part ways and go straight to the chief inspector. It didn't take very long to have good relations and inspections.
Teemok
1
Re: Correcting the code inspector
One of the things I learned rather early on was that it was literally impossible to do everthing exactly according to code (we used three -- National Electrical, Uniform Building, and National Plumbing -- this was years and years ago) and, honestly, if someone was being difficult...Ah, yes. The old do-it-one-way-for-the-inspector-then-change-it-for-the-utility. I remember it fondly.
ratio
1