Best Of
Re: Co-op in Brooklyn looking for steam consultant, 120 unit, single pipe, 1950s building
To All,
This is not an opinion based on one day. Yesterday my burner did not start again [6th time this summer]. I don't care about other power grids. As for New York City and my area, You can go on the local utilty's web site and look at the power outages and voltage reductions that they list. They are required by law to notify you in New York for reductions of 8 percent. My location in Williamsburg of the past 5 years has had an increase in high rise buildings and residential housing and associated loading . I had to call the company that services my steam boiler 3 times in the last heating season at a cost of $1,800 because of this problem and the damage caused. That is why I mentioned people in my situation install the AVR in their steam systems to prevent this. The shareholders in a Coop who spend $500,00 for their units do not want to hear about power grids or even local law 97 compliance. They want the problem solved, preventative measures taken and their maintenance cost foe their steam system kept low.
Re: Replacement PTAC system for a Singer
some manufacturers put ratings plates in where they are hidden in use, like on the side somewhere where the sleeve blocks it.
mattmia2
Re: Need help with new install of radiant with Buderus cast iron boiler
Ok looks like the EVOH means O2 barrier correct? You almost gave me a heart attack! But the more info the better.
Re: Condensate Piping- One Pipe
Depends more on where you have space for returns. The high returns won't rust out unless your boiler is throwing water in the mains. You can locate the vents centrally at the boiler.
mattmia2
Re: Replacement PTAC system for a Singer
look into inverter PTAC’s
https://www.totalhomesupply.com/p/friedrich-pvh09k3fc-9000-btu-class-freshaire-series-with-inverter-technology-12-1-eer-ptac-air-conditioner-with-heat-pump-20-amp-230-volt-r32-refrigerant?gad_source=1&gad_campaignid=21772542403&gbraid=0AAAAAD1XDHyefuqVVLU_CP1vIRyj8dF1d&gclid=EAIaIQobChMIxaeTzZe4jwMVPTcIBR2GmjiBEAAYAyAAEgI5ffD_BwE
pecmsg
Re: Replacement PTAC system for a Singer
Any other Singer's in the building you can get the model from?
At the bottom of the diagram, it says "Eac & EAF Chassis" you would think that would mean something
Re: What would an “Expansion Tank Relay” been used for historically?
I think the BX that @mattmia2 was referring to was the BX that is going into the “Expansion Tank Relay” Box. And it looks to me that the other end of that BX it goes into a conduit that heads to a junction box and towards the knife switch disconnect / fuse box. The odd thing is that knife switch disconnect / fuse box has two circuits (apparently both are being used), when only one circuit is needed for a control transformer.
Yes old wiring can be strange at times. And there may have been burner changes over the years.
It all works, so your no touch policy is good for now.
109A_5
Re: What would an “Expansion Tank Relay” been used for historically?
Looking at this closer at least one of the taped wires (Yellow arrows) is actually a connection of two wires, not dead ended.
109A_5
Re: Will I have to drain my whole heating system?
if it is the relief valve there should not be a valve between it and the boiler.
mattmia2