Best Of
Re: Is this a hercules coal furnace ? What is this ?
I agree with @Larry Weingarten, The two disconnected pipe tappings are a clue. Must have a coil in it.
Re: Cold Radiator
A minor (?) comment. You have a notches in those joists near mid span on the bottom side. They couldn't be in a worse place structurally. DO NOT CUT THOSE NOTCHES DEEPER! Figure out a different way to get the proper pitch.
Re: 1933 Burnham Boiler - Questions and Potential Replacement
If it were my house I would go with Steamhead.😄
Do be 100% sure of your EDR calculations. If you have any doubt send example photos and measurements of some of your radiators. I would still personally account for the radiators up on the third floor unless they are being physically removed. You may or the next owner may come up with some other uses for that space. I'd just put some slow vents on them.
Re: Sad day at work - wall mount toilet tank hole
Kind of surprised the plumbing codes don't require a steel plate for protection of something that vulnerable hidden in a wall, like they do with many other plumbing and electrical situations.
109A_5
Re: Trying to sell my steam radiators... Any tips?
Can you share any pictures? I would recommend listing them at a a very reasonable price but a price higher than the scrap value. This will optimize your chances of them going to good use.
Help with Goodman GSXC16 Error code 04
3 years ago my son installed a new Goodman GSXC16024 that has been working fine for the first two summers, and the beginning of this summer. About 3 weeks ago there was no AC and he found error code 04 on the condensing unit PCB display. I wanted to look up the technical documents for this unit and I am unable to find the IO manual or Trouble shooting info online. Does anyone here (other than @pecmsg) have info that might help? Is there a technical bulletin on this particular issue?
Cycling the 220 vac off to the outdoor unit and the indoor unit will bring the system back to operation. It will operate for several days and the stop. Now it is becoming more frequent.
There was a discussion on this same issue in 2021 on HVACTechTalk, but I did not see any resolution on that thread.
I think that he may need to call goodman tech support when he is at the equipment in order to get the answers, but I seem to be his GoTo tech support person on all things automotive, Oil Heat and HVAC, so that is why I'm asking
After all these
years, I finally installed my first Navien. A NFB-301C. I thought it was nice.
Re: Heat Pump Cooling Not Working
@heatingrabbit, this is a Fan/Limit control.
Its part of the heating portion of the system, not the AC. There's some type of horizontal furnace there. I assume thats why there's 2 thermostats.
There should be a transformer in the furnace. Probably 40 va, and enough for both. With the AC transformer in the condenser, it tells me someone's hands have been touching things they shouldn't be touching. Transformers haven't been in condensers since they used belt drive motors. So Ohm out the wires, take notes, pictures, label the wires, and add a 3 amp fuse to the new transformer.
HVACNUT
Re: Heat Pump Cooling Not Working
With what you are finding with the current state of dysfunction, your speculation that the 2019 model thermostat was connected wrong makes sense. I would disconnect the blue wires at each end of the thermostat cable and also that short piece of blue wire that goes between to the original transformer and the blue wire in the thermostat cable.
It seems all you need is the R on the transformer to the R on the thermostat, during an AC call the thermostat closes RC to Y (note jumper between R and RC), Y goes to the coil of the contractor and the other Blue wire connects the other side of the contractor's coil to the C of the transformer.
Not sure what the difference is with the original AT140D1046 and the Amazon AT140A1042 except the original comes with the junction box mounting plate which is secured with insulated rivets at one end, and the Amazon seems to be just the transformer with insulated rivets. If you do a transformer transplant using the original cover plate the insulated washers must stay intact.
There seems to be some oddities about that original transformer, char marks and maybe an arc flash event in the near vicinity. The secondary winding does not look overheated. If the thermostat shorted the secondary like you speculate the primary may have quickly become an open circuit like you are finding.
With a new transformer you could add a 3 Amp fuse on one side of the secondary winding to protect the transformer in case other issues still exist.
Curious, does that meter have any other Ohmmeter ranges besides 200K and 20M ? That meter may have very poor resolution when looking at resistances under 10 Ohms. You would have to check the user manual.
109A_5