Best Of
Re: 1933 Burnham Boiler - Questions and Potential Replacement
That Burnham 2708 is rated 1550 square feet. Double-check your radiation- also see if any rads have been removed over the years.
Re: Can you help identify my B&G boiler pump? Possible replacement? Repair parts?
"Point arrow towards wall" means do not point to floor or ceiling. IMO
Horizontal shaft position only. Some may have been confused by "Horizontal" and "Vertical" wording.
I have a 1961 school with 2 pumps similar to this. Both original motors still working.
Re: Trane dual stage heat but single stage AC control 2 stage AC now? control question
If the fan-only side can be adjusted to give the proper airflow, that side of the equation shouldn't be an issue. I'm not in a position to look up the schematic of that outdoor unit right now, but judging by what @109A_5 posted above, the S1 terminal is an output that forces the indoor unit into the low cool fan speed. I don't know if that means there are other wires going to the outdoor unit, or if the outdoor unit decides to go into high cooling on its own & thus forces the indoor unit into high speed fan (or, more accurately, stops forcing the indoor unit into low speed.)
Re: Which New Analyzer?
I have a TPI unit. Very easy to use and connects to your smart phone via Bluetooth so can emails and save off data
Cost is mid 400s
PC7060
Re: J-channel mounting block suitable for Prier C-134 series
Use a wooden block cut to the flange with whatever reveal you want and install j channel around it.
Re: Trane dual stage heat but single stage AC control 2 stage AC now? control question
In the manual S1 and SI seem to be the same, however I not sure if that is so. Two S1 modes ? Dip switch SW5-3. Looks like the S1 may be an output from the condenser unit that controls the blower speed by monitoring system conditions or just time. In which case the Y2 from the NEST may confuse things.
Re: Mystery domestic water line
Hi, I saw this on Ebay "Metrotech Model-420 Pipe And Cable Locator Vintage Transmitter/Receiver". It's not expensive. A locator that can be attached to the pipe inside will let you trace the line wherever it goes.
Yours, Larry
Re: Unrecognized return vent
I believe I may have mentioned this previously.
I worked on a system that had "Kelmac Jr. Retarder" steam traps.
IIRC, the "Retarder" was 3/4" size and the "Jr." was 1/2" size.
The Kelmac valves left in the system were worn out and did not have any special designs for metering. Just a globe valve.
The guts had been removed from all traps.
Most valves changed and supply orifices added.
No return traps or drums left in basement.
System would run on ounces when done with changes.
Re: Radiators getting hot when heating circuit off
One the spring checks is bad for the top floor loop. No isolation valves makes it a PITA, but not too much... unless there's antifreeze in the system. Now is the time to replace air eliminators as well if needed.
HVACNUT



