Joined on August 17, 2009
Last Post on March 10, 2014
@ October 29, 2010 8:15 PM in Embassy ONEXand is good for about 93% AFUE. It will handle 30,000 to 160,000 BTU. It uses a 316L stainless steel Condensing Heat Exchanger and includes a high efficiency water coil. DHW up to 4 GPM. It uses a 3" Polypropylene flue gas pipe which gets away from PVC or CPVC directly on the unit.It also includes a self contained circulator and expansion tank.The unit gives 5 to 1 continuous modulation. So it is very comparable to many Mod/Con units today.
I have not actually seen one installed but have had good reports from one contractor who installed one recently.
@ October 29, 2010 8:04 PM in HOW MUCH CONDENSATE???six or seven years I have been involved with testing (informal) the amount of condensate collected in one hour on about 20 different pieces of equipment. 12 were boilers the others 90 plus furnaces. We actually collected it in a measuring device. The average collected calculated over one hour periods was 1 gallon at around 100,000 BTU's down to 80,000 BTU's.
It was dependent upon outside air humidity but on an average it was 1 gallon. At the maximum we had on three occasions with boilers only about 1.5 gallons.
The fact that equipment will not be running for a full hour at a time and with modulation you will have much less than 1 gallon about 95% of the time.
@ October 29, 2010 4:59 PM in HOW MUCH CONDENSATE???of say 100,000 BTU's per hour you produce about a gallon of water. If you calcualte at 50% of heating load about half of that typically with a 20 to 30 degree day.
@ October 29, 2010 4:33 PM in Question on cycling of a mod/con boilerprobably has the SAGE 2 system which allows adjustment to overcome most cycling issues. Talk to your installer or get in touch with Glenn Stanton at Burnham he is the rep here in New England he will be able to tell you what to do.
@ October 29, 2010 4:25 PM in LWCO Blow Down Valve Replacementa professional. That way they can check your entire system. Make sure when calling for someone to ask them if they understand steam systems. You might even ask them if they have read the "Lost Art of Steam Heating" and "Greening Steam" two of Dans books available here at this sight. As an owner of a steam system they are also a good read for you.
The LWCO is part of the safety of your system so that if the boiler looses water it shuts the system off and prevents damage to the boiler.
@ October 29, 2010 1:13 PM in All of these reports are great,but....the equipment would have been replaced due to flooding. Both FEMA and GAMA recommend the replacement of any equipment that has been flooded.
Concerning CO and Air free CO readings on an analyzer my take on that is that the air free will always be the higher reading as it is an actual calculation which eliminates the oxygen, carbon dioxide and in some cases the NOX from the mix to give a pure CO reading. Before we had analyzers we would use either a formula based on either the CO2 wet kit reading or the O2 wet kit and a very inaccurate test ampoule for CO to get a better handle on actual CO. The combustion analyzer now does all that for us. Some analyzers (Testo I believe) actually calculates the NOX out of their readings. I am sure Jim can give any correction to my take on that.
By the way the Field testing that Jim talks about that was done with AGA prompted us at Providence Gas to buy a very expensive electronic analyzer ( I can't remember the make and model) for use on all of our large burner applications. We had been experimenting with replacement of draft hoods on some dual drafthood commercial water heaters at the time. Our research on doing conversions from oil to gas really got us interested in draft hood replacement on design gas equipment. In 1978 we actually converted four commercial water heaters in East Providence RI to barometric operation. A lot of the research was done with a PE from Midco by the name of Tom Roche. Some of our research was included in the Gas Engineers Handbook.
We later had problems with GAMA and several manufacturers who did not want alteration of flues and draft hood removal on any equipment. The gas company took it upon themselves however to accept responsibility for such actions.
In recent years National Grid has red tagged 7 of my alterations on design equipment and twice brought me before the local authorities for chastisement. In all of those cases actual testing in the basement has proved beyond a shadow of doubt that what I did improved and resolved safety issues on the equipment. All seven of the red tags have been removed, however I was instructed not to alter any more equipment.
I just got back in the office after 4 days away so I want to read all these postings and hopefully give some comments.
I would like to add a word of warning here, that is no technician who has not had training on doing this alteration of draft hood to barometric on design equipment should undertake this. You definitely need to have attended Jim's or my training before messing with design functions of equipment.
@ October 29, 2010 12:41 PM in Integrated Boiler Controlyou get the little jumper that jumps out the "Temp" connection on the board.
@ October 29, 2010 12:38 PM in WM 1013-200 troubleshootingvery thing I was telling you was the problem.
@ October 25, 2010 9:36 AM in All of these reports are great,but....have these great discussions when I am on the way out the door to do a week of seminars, Oh well maybe I can jump in when I get back.
Well said Steamhead you were one of my best students and now you make it work in the real world. That is the most rewarding side to teaching is to see students apply what they learn and make it work.
@ October 24, 2010 7:45 PM in Integrated Boiler Controlthe replacement for the Gold boilers is a United Technology 1013-200 which comes as a kit from Weil McLain.
@ October 24, 2010 7:43 PM in All of these reports are great,but....all alone? After many years of preaching about CO and related issues I am seeing some very gradual change but certainly not enough nor are they fast enough.
As you know it is not easy to accomplish a design change on a customers equipment by removing the draft hood and installing a barometric. When I was with the gas company it was never a problem as we had somewhat of an AHJ status. Since leaving on several occasions I have had systems red taged by the same utility I once worked for because the draft hood was missing
That being said the biggest problem we face as far as I am concerned is education both of homeowners and trades people. Every trade show I attend is heavy on how to sell, how to make money but very little about gas safety or CO education. Maybe we should get Dan to start teaching on the subject as he gets more exposure to the trades than any of us.
Many who are out there everyday in the trades are entering facilities with no idea as to the possible level of CO which could kill them. They have no protection whatsoever.
I plan to comment more in this area but I am getting ready to leave for some seminars I will be conducting next week. I too look forward to Jim Davis chiming in here perhaps.
@ October 24, 2010 11:18 AM in Utica bolier only heating one zone of the housethat is working and turn the other two all the way up. Go to the zone valves and if you have a multi-meter see if you have 24 volts to terminals 1 and 2 on the zone valves. The one that does not is the zone that is probably working. If you have 24 at the other two gently push down on the little lever on the zone valves if it gets about half way down and resists going any further then the zone valve heads need replaced. Allow about two to three minutes for the valves to open and the resistance to cease which will allow you to push the levers all the way down. If the levers will not push all the way down as already stated the heads need replaced. As a final check take a short piece of wire and jump out terminals 2 and 3 the system should come on. The jumper is only a temporary check do not leave them jumped.
If it turns out the two heads are bad leave the two levers pushed all the way down so you can get heat. Then call a pro to come and replace the heads.
If all this is a bit much for you then call a professional.
@ October 24, 2010 9:54 AM in Reconnecting aquastat, thermostat and pilot wiresseries using the transformer as your source. I would however recommend you hire a pro who can fix this problem in no time at all.
@ October 24, 2010 9:50 AM in Wall mount or free standingparticular arrangement as to the availability of wall space on the outer wall and the proper venting of a wall hung unit to outdoors. There are many good units and that with a good contractor will make all the difference in the world. Check the "Find a Contractor" area here and see who is in your area.
@ October 24, 2010 9:46 AM in Utica bolier only heating one zone of the housezone valves or multiple circulators? The fact that heat is working in one zone says the boiler side is probably okay and it is a problem with the relays or zone valves for the zones not working. How many zones are we talking about?
@ October 24, 2010 9:42 AM in Heil gas furnace problemupon looking at the specs on this furnace the possibility of a combustion issue with the roll out switch being tripped and possibly the chance of Carbon Monoxide. Please get further checks done.
@ October 23, 2010 7:08 PM in weil mclain gv gold lockout problemsyou need to have the local Weil McLain rep take a look at your problem. I find they are very ready to help out. I get a lot of e-mails so I am not sure if i heard from you on my offer to send you some material which may help you diagnose your problem. The offer is still there at firstname.lastname@example.org.
@ October 23, 2010 3:10 PM in WM 1013-200 troubleshootingon the water temp sensor? The limit LED flashing indicates a problem with the water temp sensor or if there is not a sensor connected the jumper needs to be in place.
At this point I would suggest getting in touch with Weil McLain factory to see what they suggest.
@ October 23, 2010 10:06 AM in Heil gas furnace problemyou needed a NEW BOARD as the problem was the tripped roll out switch, any limit switch opening on any forced warm air system will cause at minimum the system fan to come on and stay on and in some cases the combustion air blower also. You will also have an interruption of voltage so the furnace can't fire until the switch is replaced or reset. I hope you did not pay for a new board when you did not need one, also call backs should be for free.
@ October 22, 2010 7:45 PM in fan motor/board shortedmaybe 10 amp fuse just to be safe.
@ October 22, 2010 7:42 PM in Heil gas furnace problemyour fan and combustion air blower are running says that a limit is open somewhere. Look for a flame roll out switch near the burners, the furnace high limit, spill switch on the draft hood or the auxiliary limit switch in the blower compartment. The control board is designed to bring the blowers on in the event one of the limits opens to protect the heat exchanger from thermal stress. It is actually called "self healing".