Would I expect to have problems with a Lennox Pulse?
Weren't there some recalls, free service, etc. for them?
Anything else I need to know?
Thanks
Junk it and start over,
if you value your life and others that will be sleeping in that home.
--
kjpro
=-_=-_=-_=-_=-_=-_=-_=-_=-_=-_=-_
want it done right the first time.....
....or pay more to have it done twice?
=-_=-_=-_=-_=-_=-_=-_=-_=-_=-_=-_
This is Turtle.
the Pulse is a over engineered piece of equipment for just a simple job or a high tech operation applied to a low tech operation. I
have only worked on one for we don't have a Lennox dealer near here for we was the last Lennox dealer the left them in 1979.
the Builders model Lennox is just one of the boys as trouble goes.
TURTLE
---
Outgoing mail is certified Virus Free.
Checked by AVG anti-virus system (http://www.grisoft.com).
Version: 6.0.639 / Virus Database: 408 - Release Date: 3/22/2004
Lennox did have major MAJOR problems, and noise wasn't the big problem, it was a life and
death issue concerning the exchangers leaking.
No matter what, have a pressure test done on the exchanger when you have your Lennox
service company look at it. Stand right there to prove that the thing isn't leaking. Then,
for the rest of the winter stay up at nights wondering if it started to leak the day after
it was tested.
Also, I believe the warranty is to the original homeowner, so have them check it out
before you buy it.
Go to www.lennox.com and email them with your questions, they are the ones who can answer
them complexly
Other than the cracked solder joint problem (which was a BIG problem no
doubt), we have had many Pulse furnaces run 10+ years with no maintenance,
and no breakdowns. Does that sound complicated? Honeywell fan relay to
turn the fan on in heat. A 24v relay to turn the fan on for cool. An
inducer motor that runs only at start up and shut down, which means it last
a very long time. It's actually a very simple machine. It's human nature
that anything we don't understand seems overly complicated. Remember when
the 58GP first came out with that new fangled circuit board?
The solder problem was fixed around '89. If you have an '87 furnace it will
more than likely fail the pressure test- either now or in the future.
Lennox will honor the replacement warranty even if it hasn't failed yet. It
had a limited lifetime warranty with the original purchaser, 20 years for a
buyer. That means it's out in 3 years. Lennox will supply a brand new 90%
furnace (of a much more common design) for no cost, and the homeowner pays
just the labor.
Go ahead and replace it.
Brian
This is Turtle.
Now to being over engineered here. Why would a man want a gas furnce to pulse it's flame and have to control this with a relay
board. This is the same thing as I will say When I go to take a piss next time. I'm going to make it pulse into the towlet and stop
and start it in a regular pattern and make history as being the first idoit to do this. Now just pissing regularly is nice and
everything comes out good but I want to be different and be the first to do this. If everybody start Pulse Pissing , I will say
Pulse gas furnaces are nice to do too. Until then I do not like Pulse Pissing and Pulse furnaces.
now pulsing the gas to a furnace will as a dumb ass like my self will tell you. It will put stress on the metal of the furnce or
fire chamber. They don't make a metal yet that can take a contenous rise and fall of the fire chamber temperature for years on end.
Example of this is every 1/4 mile you drive in your car. You turn the car off and let it cool and crank it back up and everywhere
you go you do this. the car will wear out real soon. the engine will be contenously heating up and cooling off and the only time you
have any good amount of wear on a car or truck is when it is warming up.
Now to the nice warrenty. It is very nice to have such a nice warrenty but why don't you just build a good sound furnace and throw
the warrenty away for you will not need a warrenty. Build your equipment on Quality and not on a warrenty. The Nice warrenty is real
good but the customer has to pay labor cost on a screw up of Lennox being the first kid on the block with a Pulsing furnace. I know
of no normal type of electrical equipment that pulses and will not wear out real soon. The pulsing will put a strain on the Metal
and control system for going off and on all the time.
Now other than this they do work just like the others but i see this Pulsing as a negitive thing.
Heres your answer, Brian has nailed it on the head, this is the cheapest and wisest way to
go for sure. If it falls within that time frame get rid of the thing while its under
warranty.
However, YOU are not the original purchaser, as Brian mentioned. SO, you must have the
original purchaser do it BEFORE you buy the home.
Sure you do Turtle. What about the radar guns the po-lice use in Louisanna?
They send out radio frequency pulses.
Umm what about the all the electrical motors that ac equipment runs on. They
pulse on and off, sixty times a second.
This is Turtle.
Yes the radar gun does send out a pulse beam but if you run the pulse more than 5 minutes it will burn up. That is not what you call
durability.
The 60 Hz. on electricity does not pulse but reverses the direction of the electricity but keep a contenous source of power to the
motors or equipment. It will never cut off during it's run cycle.
Another example for you here. Why do 18 wheeler operator will never cut their engines off while they are eating dinner somewhere or
where they will be stopped for a hour or less. the engine will get 1 million or more miles if the keep them warm while stop for a
short times , but if they don't. they will be lucky to get 500K miles. 90% of the wear of the engine comes when the engine is
warming up to the temperature it will be running at. The metal of the fire chamber does the same thing.
Now the Lennox furnace really does not pulse but just turn the gas off and on far too many times to get the same results. You have a
contenous warm up cycle all the time with the heat exchanger. You just keep heating up the metal and cooling it off all the time
will work on the metal of the heat exchanger. I don't think they have a metal [ well that we can afford ] that will take this abuse.
There is no mechanical device making the pulse.
Nothing is turning the gas on and off.
Maybe ya shoud buy a clue before opening yer mouth.
Okay, go ahead and call me names now.
Seems that is all this group is about now anyways.
About six people swearing and calling everyone else a hack.
"TURTLE" <tur...@worldnetla.net> wrote in message
news:c4b074$2fkv0k$1...@ID-79743.news.uni-berlin.de...
>Turtle....you got no clue how a pulse works.
>
>There is no mechanical device making the pulse.
>
>Nothing is turning the gas on and off.
>
>Maybe ya shoud buy a clue before opening yer mouth.
>
>Okay, go ahead and call me names now.
>
>Seems that is all this group is about now anyways.
>
>About six people swearing and calling everyone else a hack.
Fucking hack.
Paul ( pjm @ pobox . com ) - remove spaces to email me
'Some days, it's just not worth chewing through the restraints.'
HVAC/R program for Palm PDA's
Free demo now available online !! http://pmilligan.net/palm/
Free superheat charts for 38 Ref's online at http://pmilligan.net/pmtherm/
<pjm@see_my_sig_for_address.com> wrote in message
news:kurj60hlj4f9vrqsf...@4ax.com...
I know what makes them pulse.....
And the statement that Turtle makes about the metal getting hot then cool is
still there.
And the fact that the unit operate in a positive enviroment is still there.
And the fact that the units SUCK, is still there too. :-)
> Turtle....you got no clue how a pulse works.
James- It's obvious by the answers that few here understand the Pulse. If
you don't understand something, you slam it. Makes you look better.
(What's this about the metal heating and cooling from the pulse of the
flame?)
> Okay, go ahead and call me names now.
>
> Seems that is all this group is about now anyways.
Unfortunatly, it's been that way for a long time. A few years back Paul
checked out for a year or two and the flame throwing went away. The main
topic turned to....and I'm not kidding here, heating and air. He returned,
and the quality of post took a nose dive. I highly doubt these guys deal in
person the way they do hidden behind a keyboard.
Brian
During the time we lived there, from '87 to '93, I had service calls on the
thing about once a year. Igniters, boards, relays, etc. It cost a fortune to
maintain. I had spec'd Trane when we built the place because I had done a
electrical job in their plant (I think it was in Tennessee but can't
remember anymore) and I always believe in helping out the people who help
you make a living.
Anyhow, flash to Christmas 2003... Me and the wife and 2 kids are back in
the old home town visiting Dad and my brother for the holidays and decide,
fondly, to drive by our old house (the first one we ever built).
There was a tarp over a roof portion of the garage and adjoining utility
room. No one lived there anymore.
Cautiously, I pulled into our old driveway. My wife said "We shouldn't be
messing around here" but I checked the door off the garage and it was
unlocked. I walked into a smoke-smelling, ash covered mess. I thought maybe
a car had caught fire in the garage.
Later, during Christmas dinner, I was telling this tale to my brother who's
a local cop in this small town. He said, "Oh, I meant to tell you about
that. Your old house burned up about a month ago and I was at the scene when
I heard the FD call on the radio... recognized the address. That monitored
fire & burglar alarm system I talked you into saved 4 people... the house's
furnace somehow exploded and a fireball went clear through the roof."
Enough said... everybody made it out alive... but only thanks (very luckily)
to a $2,500 security system.
Jake
This is Turtle.
Well Little Jamey Boy , Just explain to me how it works and what if any was not true about what the statements I made. I know I'm
not the best on Pulse furnaces but please bring me up to date. I know you know all about them so please explain to the poor little
Turtle how they work. Here is your time to shine.
This is Turtle.
Just having the two words just made you answer stand out a good bit and to the point and no bullshit. WOW, That must have hurt
little Jamey. Now Don't you feel sorry for him in his mental Pain ?
One of the funniest things is, they get a snip of the story from some home
owner and they imediatly call the guy a hack. The dont get the real
details. Only the limited recount of what the disgruntaled customer wanted
to post.
And anyway, id like to know how any of these guys get any work done whne it
seems all they ever do is do manual J and D's all day. Id love to know how
yer suppose to do a manual D when the furnace is now in a closet in a three
story house and the basemen is completely finished.
And btw the pulse is a very simple furnace. Its principles are oover a
hundred years old. The one problem that did arise from them was due to some
welding on the condenser side that wasnt up to snuff allowing water to leak
out of the furnace.
And yes I have serviced hundreds of them.
Thanks for reading Lizard :)
"brian" <spence...@NOSPAMmindspring.com> wrote in message
news:1Qnac.5974$yN6....@newsread2.news.atl.earthlink.net...
This is Turtle
The Hen that laid the Egg , Will Kackle the loudest. A Hack that is Called a Hack , Will Kackle the loudest.
TURTLE
---
Outgoing mail is certified Virus Free.
Checked by AVG anti-virus system (http://www.grisoft.com).
Version: 6.0.639 / Virus Database: 408 - Release Date: 3/23/2004
It's difficult but I work in a few manual N's as well. Oh, and you won't be
doing a manual D on that home, you'll adapt and overcome.
>
> And btw the pulse is a very simple furnace. Its principles are oover a
> hundred years old. The one problem that did arise from them was due to
some
> welding on the condenser side that wasnt up to snuff allowing water to
leak
> out of the furnace.
While I won't preach about the principles of the pulse operation here, I can
say that there is not a Lennox product on the market that is simply
controlled.
>
> And yes I have serviced hundreds of them.
I won't fight you for a second, you are welcome to them all.
- Robert
Along with "Carbon Monoxide"!! :-)
> And yes I have serviced hundreds of them.
>
> Thanks for reading Lizard :)
>
>
> "brian" <spence...@NOSPAMmindspring.com> wrote in message
> news:1Qnac.5974$yN6....@newsread2.news.atl.earthlink.net...
> >
> > "James" <ja...@nospam.ca> wrote in message
> > news:qamac.138812$sM4.1...@wagner.videotron.net...
> >
> > > Turtle....you got no clue how a pulse works.
> >
> > James- It's obvious by the answers that few here understand the Pulse.
> If
> > you don't understand something, you slam it. Makes you look better.
> > (What's this about the metal heating and cooling from the pulse of the
> > flame?)
> >
> >
> > > Okay, go ahead and call me names now.
> > >
> > > Seems that is all this group is about now anyways.
> >
> > Unfortunatly, it's been that way for a long time. A few years back Paul
> > checked out for a year or two and the flame throwing went away. The
main
> > topic turned to....and I'm not kidding here, heating and air. He
> returned,
> > and the quality of post took a nose dive. I highly doubt these guys
deal
> in
> > person the way they do hidden behind a keyboard.
> >
> > Brian
--
This is Turtle.
Old James ain't worried about the CO but it is that water that is looking at. That water can short something out and he can get to
sell a blower motor or control board and make some good money. Now the CO getting out , Well he said he don't live there and if
someone getkilled from it. He would get to sell them a new furnace. Don't Worry / Be Happy / James is on the Job.
Paraphrasing from Pastor David Wilkerson, author of "The Cross and The
Switchblade".
--
Christopher A. Young
Learn more about Jesus
www.lds.org
www.mormons.com
"TURTLE" <tur...@worldnetla.net> wrote in message
news:c4do2d$2h93ql$1...@ID-79743.news.uni-berlin.de...
"James" <ja...@nospam.ca> wrote in message
news:g2tac.141087$sM4.1...@wagner.videotron.net...
> Hi Brian, I ussually just read this group for the laughs now. It is all
it
> is, jsut a comedy group. six guys talking about how great they are and
how
> everyone else sucks. I challenge anyone to find a recent post pertaining
to
> a technical topic that was discussed without anyone being called a fucking
> hach.
>
This is Turtle
G21 and GSR21 units are condensing furnaces utilizing
the pulse combustion process. Initially, combustion
takes place in an enclosed chamber. Then, as combus
tion products pass through the heat exchanger system
into a coil, the latent heat of combustion is extracted and
water is condensed from the exhaust gas.
The unit uses a redundant gas valve to assure safety
shut off as required by A.G.A. The units are manufac
tured for natural gas application. L.P. kits for A.G.A. /
C.G.A. units are available for field changeover.
An electronic direct spark ignition control initiates com
bustion. The ignition control serves four functions: pre
purge, ignition, flame sensing and post purge. Controls
reset in the event of nuisance lockout. The control also
verifies loss of combustion during a cycle, closing the
gas valve. A differential pressure switch shuts down the
unit immediately if there are obstructions in the exhaust
outlet or air intake.
A purge blower clears the combustion chamber before and af
ter each heating cycle to ensure proper air mixture for start up.
1 - Gas and air enter and mix in combustion
chamber
2 - To start the cycle a spark is used to ignite the
gas and air mixture (this is one "pulse").
3 - Positive pressure from combustion closes
flapper valves and forces exhaust gases down
the tailpipe.
4 - Exhaust gases leaving chamber create a
negative pressure. This opens the flapper valve
drawing in gas and air.
5 - At the same instant, part of the pulse is
reflected back from the tailpipe causing the
new gas and air mixture to ignite. No spark is
needed. (this is another pulse").
6 - Steps 4 and 5 repeat 60 to 70 times per second
forming consecutive pulses" of 1/4 to 1/2
Btuh each.
7 - Latent heat is removed from combustion
products and condensate (water) is formed in
the condensate coil.
Kirk, the occasional lurker
"TURTLE" <tur...@worldnetla.net> wrote in message
news:c4d9l7$2g4m1h$1...@ID-79743.news.uni-berlin.de...
This is Turtle.
That was very informitive on the Pulse action there. That was very good for I did nothing think it was that may pulses in a second
and was thinking it would be more temp. rise and fall between pulses. The problem of the fire chamber failures is still there by
what you said of the nevative and possitive of the time between pulses. This would be putting a Neg. and a pos. pressure on the
metal along with heating up of the metal or floating of the temperature in the chamber.
That was very good.
TURTLE
---
Outgoing mail is certified Virus Free.
Checked by AVG anti-virus system (http://www.grisoft.com).
Version: 6.0.648 / Virus Database: 415 - Release Date: 3/31/2004
> The problem of the fire chamber failures is still there by
> what you said of the nevative and possitive of the time between pulses.
This would be putting a Neg. and a pos. pressure on the
> metal along with heating up of the metal or floating of the temperature in
the chamber.
The failure in the Pulse was not a result of "pulses", pressure, etc. The
problem was the solder used in the secondary heat exchangers. This problem
was discovered in '87 or '88, and the correction made, but it was too late.
The damage had been done, both to the individual furnaces, and the line's
image. By then manufacturers were producing the more traditional furnace
with secondary heat exchangers. Pulses produced after 1990 are fine. And
they were able to reduce the sound output. We have one heating our office,
and standing 4' from the furnace all you hear is the blower. From inside
the office you hear nothing at all.
This is Turtle.
You say the ones after 1990 are Ok ? This is new to me and I try to keep up with this. This sure sound like it.
> This is Turtle.
>
> That was very informitive on the Pulse action there. That was very good for I did nothing think it was that may pulses in a second
> and was thinking it would be more temp. rise and fall between pulses. The problem of the fire chamber failures is still there by
> what you said of the nevative and possitive of the time between pulses. This would be putting a Neg. and a pos. pressure on the
> metal along with heating up of the metal or floating of the temperature in the chamber.
>
> That was very good.
>
> TURTLE
>
>
This reminds me of having a good case of popcorn farts! Probably sounds &
smells the same. Wonder how many btu's I put out?
--
Tekkie
I do the pressure test on two schools here that have the pulse furnaces.
About 60 or so units and not one of them have failed the pressure tests to
date. The furnaces are going to be tested again next year, will see how it
goes then as the units are going to be 15+ years old. I agree that these
are very quiet running furnaces and have had minimal problems over the last
10 years.
Joseph
This is Turtle.
The BTU rating of a fart will be pretty high for Methan gas has a high btu rating. Don't stand near a flame when your enjoying
yourself.
not much till you put a match to it
> Tekkie
--
Christopher A. Young
Learn more about Jesus
www.lds.org
www.mormons.com
"Jake" <jkel...@insightbb.com> wrote in message
news:VWoac.145187$po.877164@attbi_s52...
The solder joints are not the only sections that will leak go to the
following link of a photo I took of a leak at the resonator.
http://www.essex1.com/people/mechacc/images/images/Pulse_resonator_leak.jpg
This brings me to my real point... it seems too many times that residential
stuff is under-engineered for safety. I work with industrial environments,
where most everything is heavy-duty and built to run safely and economically
for the long haul. I look at some of the crappy electrical panels people
buy at Home-Cheapo and others and just shake my head. It's really a poor
reflection of the consumers in this country that they aren't willing to pay
for quality anymore. Yeah, I've had engineers try and talk me into doing
things to cut corners, but they almost always understand the downside when
it's explained to them. Consumers don't see a down-side to saving a buck...
no matter what.
As I've said before, I work in the electrical trade and not specifically in
HVAC, but we're all in the same boat here. People think they can outsmart a
technical professional and never consider the risks of doing so... it
probably happens 1,000 times a day in this country.
Enough of this tirade... I'm just so tired of folks discounting the notion
of "doing things right" versus just doing them. Our country became
prosperous on the premise of being the best, but now every Tom, Dick and
Harry is happier going to Wal-Mart and buying 20 Awg. extension cords
instead of having properly installed outlets in their homes. I'll stay in
industry until we don't have it anymore (probably coming soon!!!).
I hope they have good insurance...
Jake
"Stormin Mormon" <cayoung61-#spamblock*-@hotmail.com> wrote in message
news:c4ncef$2kjgol$1...@ID-216852.news.uni-berlin.de...
"Oscar_Lives" <nos...@nospam.net> wrote in message
news:hXM9c.120275$Cb.1367898@attbi_s51...
> I am considering making an offer on a house and I would like some advice.
> It has a 1987 Lennox Pulse furnace in it. The furnace looks like new from
> all that I can see, but the condenser unit looks like a crappy weathered
> 1987 Lennox builder's model.
>
> Would I expect to have problems with a Lennox Pulse?
>
> Weren't there some recalls, free service, etc. for them?
>
> Anything else I need to know?
>
> Thanks
>
>
This is Turtle.
When the Concrete foundations have problem. They don't go away but will return later when you least expect it. I know a fellow who
has had his slab pumped back up into place 3 times in the last 15 years.
Passing is not a bad ideal.