Heating Help

So it's been awhile ...

@ February 6, 2013 5:10 PM in So it's been awhile ...

That I have had a look at the Wall and checked out the activities - still great discussions! So it's my turn to ask a question; buddy phones and asks about a monitor MZ 40 that he has, sends a file of pictures and piping, said it was primary secondary with injection mixing. It wasn't. So I have been poking around the net looking for info and suggested piping schematics - and have had a horrible time finding anything, Is there a Monitor specific site I have missed? I did find the technical instructions but that it. I could easily draft a drawing but am looking for something that Monitor may have developed. Help!

Vacuum Steam

@ November 10, 2011 9:28 AM in Vacuum Steam

I ran across a brief statement in an older UA Steam Manual; it cited that both supply and return lines in the vacuum system are smaller and therefore cannot be converted to any other system. I have been under the impression that only the return lines were smaller - please clarify.

Venturi Tees

@ August 2, 2011 2:49 PM in Venturi Tees

I am looking for the cv of either the 1 x 3/4 or 1 1/4 x 3/4 venturi tees; failing that an approximate fthd or milinch pressure drop (or equivalent length) at design velocities would be helpful.

use this formula

@ April 29, 2011 3:58 PM in water thermal expansion & pressure

P1 x T2 = T1 x P2, state the pressures and temperature in terms absolute. I get 19 psia. Charles, Boyle & Guy Lussac all had a lot to say about temp, pressure & volume.

thanks

@ November 4, 2010 10:32 AM in Boiler Service Recommendations

sorry for the slow response - my son was married over the weekend - it was a great party. You offer good advise re developing a strategy for each mechanical room - and the specific equipment. FWIW I noticed that our boilers here at the college did not arrive with service manuals - instead we were expected to download them off the net. Times are changing.

Boiler Service Recommendations

@ October 28, 2010 10:53 AM in Boiler Service Recommendations

While I have my preferred list of duties the first time I set foot in a boiler room I thought I would ask the brilliant bunch that lurk on and just off the wall for their preferences. I have been asked to present a seminar on commercial and industrial boiler service; and if you are willing to share your procedures I would appreciate it. Do you have favourite tools that make your life as a boiler tech easier? A checklist that is used each and every time you PM a boiler/burner? Digital or analog? Reporting software that you can't live without? My thanks in advance.

thanks Dan -

@ October 20, 2010 9:58 AM in Starbuck Publications 1917-18

I see that I have a few to collect yet!!!! I picked up the last one in a nice little bookstore in downtown Ann Arbor.

library and other stories

@ October 7, 2010 5:55 PM in New scan for the Library

hello Dan - I have several books by RM Starbuck but can't seem to research a complete list of his writings. Any Idea?

testing is very stringent

@ September 14, 2010 8:32 AM in Gas Explosion is the worst I have ever seen

as well as the xray procedure the entire line would have been hydrotested as well. As Tim states each weld is recorded on a weld map that includes location and welder that did the procedure. I would also give some consideration to changing ground conditions that can cause corrosion; the weld fill material acts like an anode (gives up ions) and the pipeline acts like a cathode (receives the ions). If the cathodic protection failed then the first failure point is the weld.

have you considered -

@ September 9, 2010 11:40 AM in What causes this fireside residue?

that it is a combination of a slightly low stack temp (like firedragon I would think your figures should be NETT not gross) & return water temps are on the low side. You didn't state operating conditions - so I can only speculate.

Last I heard -

@ August 19, 2010 9:06 AM in Attention Viessmann Users

Iman landed at DeDietrich. But re the SA 240 nomenclature - is this not just the material designation from either ANSI or ASME for 316/Ti?
I have used the IBC in numerous radiant applications - it is 97% at these reduced temperatures, sips fuel while heating and ramps up to make enough hot water for three teenage daughters. It works exactly as promised and delivered.

most interesting post and pdf

@ August 19, 2010 12:04 AM in Attention Viessmann Users

and paragraph four is specific re the use of 316/Ti alloy. And now that I am out of the selling/commissioning gig I smile whenever I see an "exclusion" to this or that; and I am especially amused when one of my favourite boilers (but not exclusively) is singled out as being the best. So I must be quick to point out that right here in North America a boiler meeting and exceeding the stipulation cited in paragraph 4 is enjoying celebrity status as well. Curious??? Google IBCboiler, made in Canada, meets or exceeds the lofty ideals cited in paragraph 4 and is my top pick to challenge the silver and orange brand from Europe. Made in Canada - that qualifies for a domestic made in North American product doesn't it?

thanks to one of my best clients -

@ June 7, 2010 4:59 PM in Best Tool For Oventrop

that liked to help and do things himself (honestly - he was good at it!) we used a torx drive socket for 3/8 square drive. superbly elegant!

Having installed both -

@ February 26, 2010 2:02 PM in East Coast IBC Boiler Experiences, anyone?

I must say I like them both. I will also admit that I have been off the tools for about 2 years so changes have happened that I may not be aware of. The move to achieve a price point via burner changes, integral changes to circuitry etc have diminished the Viessmann product a certain degree - but has it diminished it sufficiently to dismiss it? Not yet. The IBC has 3 temperature outputs (DHW & 2 heating zones) that is achieved by PS piping which I really liked in my last commercial install (so if your system is radiant and DHW that leaves one output for the hottub htex!) The boiler itself is very robust with very user friendly setup and calibration; downside - it is a bear to setup on propane whereas the Viessmann is a simple orifice change. Regardless of boiler though it is the understanding of the installer that can make either sing; both (here on the west coast) have excellent customer service and that may make the lack of a IBC rep in your backyard the real stubling block. Both will make you smile when it comes time to pay your utility bill.

just rec'd "Greening Steam"

@ February 9, 2010 4:26 PM in just rec'd "Greening Steam"

and while I am only three chapters in - I predict it will parellel "the Lost Art" as a must read for anyone that has an affection for steam. Way to go Mr H! Another out of the park HR.

Novel method of monitoring low water

@ January 18, 2010 3:48 PM in Novel method of monitoring low water

words are inadequate ...

thanks

@ January 11, 2010 12:09 PM in does it work????

for both. The calcium/carbonate vs silica discussion is helpful. 

does it work????

@ January 8, 2010 3:09 PM in does it work????

This looks like a greener solution than replacing one salt for another; does anyone have any experience with these devices or can substantiate/refute their claims?
[url=http://www.easywater.com/howitworks.aspx]http://www.easywater.com/howitworks.aspx

An interlock is just one step -

@ December 7, 2009 5:03 PM in negative pressure burner shut off

By your description the paint booth is exhausting your interior air at a very high rate - this will affect all fuel burning appliances in the building. I would recommend a direct fired make up air unit to replenish interior air and minimize negative pressures; this in turn would be interlocked to the paint booth exhaust fan. So when the booth was activated the DFMUA would also energize. A secondary interlock may be necessary (via intermediary relay on the DFMUA) for the oil burner if start times exceed 90 seconds or so.  It all depends on your local building and gas code for make up air.

low flow -

@ November 23, 2009 4:46 PM in Thoughts on variable-speed pumping and air removal

Pgs 93/94 "Hydronic Heating and Cooling",(2007). Pipe Trades Joint Training Committee, United Association of Plumbers and Pipefitters. The half foot per second comes from an excerpt on a discussion of air seperators; it is within the seperator that the .5/ft/sec is deemed to be appropriate not in the piping system. Sigh - the danger of speed reading.

Time Zone trivia

@ November 15, 2009 8:46 AM in Time Zone trivia

Interesting article for sure; but did you know that this business about daylight savings or even standard time is not universally adopted by all here in Canada? There are two communities in British Columbia that refuse to participate in the daylight savings program; Creston and Dawson Creek in the north. In Creston they literally move the time zone notification signage each spring and fall to stay on Pacific Standard.

years ago -

@ October 22, 2009 3:27 PM in cause of random 5- 10 second firing of bolier

I had the same ghost firing on a Carlin burner. The oil burner safety relay was the cause.