Any spare boiler controls/parts/suggestions for a commercial boiler class

RayWohlfarth

I was asked to teach a 16 hour boiler class for the local operating engineers, LU 95 starting in May. Most of my classes are 4 hour using a power point. I would like to ask if anyone has suggestions or used controls I can use. I would like it it to be some hands on things the class could see and feel. I was going to have low water cutoffs, operating and limit controls. I would appreciate any advice or tips you use when teaching a longer class like this. Thank you in advance

pecmsg

Have you asked Local 30?

RayWohlfarth

@pecmsg I have not The local union here is Operating Engineers #95

GGross

16 hours straight Ray?

pecmsg

Sorry

was thinking IUOE Local 94.

I sent a PM

RayWohlfarth

@GGross Goodness no It takes these old bones and pipes a few days. I will be teaching every thursday for 4 weeks 8am to noon

GGross

@RayWohlfarth That's good. I can't imagine the students being teachable for much more than about 4 hours. Even when I would go to the manufacturers training events that were all day they usually split that up with some hands on time in the afternoon, lab visits or factory tours. Wish I had a few controls to send you but all of my stuff is either proprietary or residential.

Intplm.

A few fully assembled oil burners and some different gas burners are good hands on material. Have tools ready so they can be taken apart.

One thing that always seems to go well is having the things in the video presentation the same as the hands on afterwords.

EdTheHeaterMan

Bring a bucket of steam so they can actually touch and feel the heat.

EdTheHeaterMan

Seriously, I taught a 12 week Adult Evening Education class on Oil Heat and I used a live fire furnace so the students could see what the oil burner flame looked like and do actual combustion tests. But that was residential and back in the day of using a wet Bacharach kit.

For a commercial class, I might want to see the internals of a combustion safety control cut away or with covers removed to understand the concept of the pre-purge, trial for ignition, proving flame and post purge using the older analogue devise (like an R890) to understand the basic concept and be aware that older stuff may still have this junk operating.

Understanding the basics will lend itself to understanding the newer controls. Have some flane sensors available to see the difference in Flame rectification, Rectifying photocell, and purple peeper UV sensor, and the different amplifiers used to prove flame and why the flame rod wont work on oil burners for example.

Also have some of the newer controls (not cut up because they are a little pricy) that are more common on todays burners. Also being some Steam Pressure-trols that are both additive and subtractive differential. That should take up a 4 hour class on controls.

Alan (California Radiant) Forbes

I have some mercury-filled aqastats and thermostats you can swing by and pick up? I even have an old Mercoid aquastat somewhere in the basement.