Best Of
Hydronic Boiler Scale: Causes, Dangers, Prevention This weeks video
As the name implies, the video covers common causes of scale formation and the implication to the boiler.
Re: Your thoughts and opinions please
First of all Thanks to everyone. I have been fighting with this as each topic could be 8 hours or more. The customer was thinking of a quick thing about what to look for on each type system. For example, what's the system pressure, delta t on a hydronic system Near boiler piping and boiler pressure on a steam I guess they were hoping I could do the matrix thing and just upload knowledge. Back to the drawing board. You guys are awesome Thanks
Re: Your thoughts and opinions please
Ray, I agree with the comments above.
I am being brutally honest here, not trying to be disrespectful.
Do you want to listen to yourself talk, or do you want to teach. What I am trying to say is, let it sink in. Give the students time to respond. Reduce the amount of information you are trying to fit into a few hours.
Ask the class for responses to your questions to judge if they are picking up what you are putting down.
For example, you are gong to cover sizing a circulator pump in what, about four minutes? I am amazed at the amount of people in the trade that have no idea how to size a circulator. This includes service techs, installers, supply house "designers", and even some reps. I think you could spend an hour easily just on on sizing and identifying pumps.
With regard to electrical troubleshooting, keep it simple. Think of the hundreds or thousands of no heat calls you have been on. Only focus on the the common problems, not the obscure with such a short time frame. Start with simple hand drawn line diagrams, show the people how a simple circuit works. Use water, valves and pipes as examples. Then work your way up to more complicated examples based on the response you get.
I am thinking back to Dan Holohan's early seminar days. He made it simple, fun, had props, and spoke in a language that most of us understood. Everyone I spoke to after one of Dan's seminars learned something, most learned a lot. For me, I learned plenty and I gained confidence in what I was unsure of.
Hopefully your students will learn something and ask plenty of questions.
Re: Towel warmer radiator?
That radiator is tall enough to BE the towel warmer. I use mine that way.
Re: Another acquisition: ASC acquires Ward
Monopolies don't usually work out that way, but I like your optimism.mateo said:Great acquisition by a very respected company. They have made many acquisitions in the past few years and have done a great job with each. They have always been committed to American made products and I have no doubts they will integrate this newest acquisition into their product offering quite well.
Re: Your thoughts and opinions please
Wow That looks pretty comprehensive. Are you going to be able to squeeze all that into one hour each? You man need to look at some of the importance of each item and be prepared to glaze over some of them as you watch the clock in order to cover the important points.
When I did my one day seminars on Hydronics, I had a 4 minute blurb on steam boilers where I used one power point slide to touch on important basics, then told the mechanics in the class to put their hands in their pockets and step back and call someone that knows about steam.
I also stopped my presentation in the middle of discussing safety devices like high limits, flame safety controls, and relief valves. I had three slides to go over the importance of "Operating" the relief valve. I had a blow up of the yellow tor green tag that is usually torn off, that states: "YOU MUST OPERATE THE RELIEF VALVE ANNUALLY" and highlighted those words and zoomed in on them. Dan H taught me that one. Then I asked about what does a maintenance visit include?, and why the mechanics don't operate PR valves as part of the maintenance? If the valve fails, you have a sale for a new valve if you present it properly, and doesn't your boss like it when you sell stuff over and above the loss leader maintenance price? Aren’t we in the business to replace defective parts?
Re: Triangle tube ignition upgrade kit
Call (877)574-5036 to find out if your boiler falls under the recall. Like Mr. Gross said, they will send you the parts for free.
Re: R7284B (Oil primary) Setup
So your system is connected to ductwork. Then you most likely have a newer furnace that utilizes a ST9103 fan timer. That is the control that you connect the thermostat wires to. In that case there are several different ways the primary control may be connected depending on the manufacturer's wiring design. Some use the ST9103 to call for heat on the R7284U with two wires from the 9 PIN plug in connector to T T on the R7284U. Others may not use that design. The bottom line is to look at the R7284U and see if there are any wires connected to T T that go to the ST9103.
If there are no wires connected to T T on your Primary control then NO is correct. If there are wires connected to the T T on your primary control then YES should be set for T T. see the illustration
Now there is an exception to this. If the ST9103 has a defective switch circuit that fails to make the call for heat from the thermostat, transfer to the 9 PIN connector, the you might need to have the ST9103 fan timer replaced. As a money saving adjustment, I have made the change from T T = YES to T T = NO as long as all the other safety functions of the ST9103 fan timer are operational. You would need a professional technician that is familiar with the proper safety circuits that include the high limit and flame failure safe guard.





