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| Home Repair (alt.home.repair) For all homeowners and DIYers with many experienced tradesmen. Solve your toughest home fix-it problems. |
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#1
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A/C evaporator location
The alt.hvac snobs wouldn't answer my question, so I'm posting here...
I was going to install my new humidifier this weekend, but I see that the A/C evaporator is in the way. And I have no room on the return plenum. I have an upflow system and the evaporator was installed at the very top of the supply plenum. Here's a diagram: ``````````| ducts to all of the rooms | ``````````+-----------------------------------+ ``````````| | ``````````| | ``````````| | ``````````| A/C evaporator located here | ``````````| | ``````````| | ``````````| | ``````````+-----------------------------------+ ```````````\ | ````````````\ | `````````````\ section of duct | ``````````````\ | ```````````````\ | ````````````````+-----------------------------+ ````````````````| / ````````````````| / ````````````````| section of duct / ````````````````| / ````````````````| / ````````````````+-----------------------+ ````````````````| | ````````````````| | ````````````````| | ````````````````| furnace | ````````````````| | ````````````````| | ````````````````| | ````````````````| | I have some questions about this... 1) Should the evaporator have been installed lower in the supply plenum? (It sure would have made it easy for me to install my humidifier.) 2) I plan on having my A/C system replaced this spring, because it is very old and doesn't work well. Can I ask the installer to locate the evaporator lower in the supply plenum? 3) There is a little bit of asbestos tape on the duct where the evaporator lines enter. Will the A/C guys remove this? Will they ask for me to have it removed before they work? 4) Depending on the answer to #2...Can I have someone evacuate the A/C system so that I can remove the evaporator and install my humidifier? There's at least two feet of duct below this (and above the furnace) where the evaporator would fit. Mike |
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#2
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A/C evaporator location
wrote:
The alt.hvac snobs wouldn't answer my question, so I'm posting here... Good idea. I was going to install my new humidifier this weekend... Bad idea. Caulk the house instead, to lower vs raise your fuel bill. Nick |
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#3
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A/C evaporator location
wrote in message oups.com... The alt.hvac snobs wouldn't answer my question, so I'm posting here... I was going to install my new humidifier this weekend, but I see that the A/C evaporator is in the way. And I have no room on the return plenum. I have an upflow system and the evaporator was installed at the very top of the supply plenum. Here's a diagram: ``````````| ducts to all of the rooms | ``````````+-----------------------------------+ ``````````| | ``````````| | ``````````| | ``````````| A/C evaporator located here | ``````````| | ``````````| | ``````````| | ``````````+-----------------------------------+ ```````````\ | ````````````\ | `````````````\ section of duct | ``````````````\ | ```````````````\ | ````````````````+-----------------------------+ ````````````````| / ````````````````| / ````````````````| section of duct / ````````````````| / ````````````````| / ````````````````+-----------------------+ ````````````````| | ````````````````| | ````````````````| | ````````````````| furnace | ````````````````| | ````````````````| | ````````````````| | ````````````````| | I have some questions about this... 1) Should the evaporator have been installed lower in the supply plenum? (It sure would have made it easy for me to install my humidifier.) 2) I plan on having my A/C system replaced this spring, because it is very old and doesn't work well. Can I ask the installer to locate the evaporator lower in the supply plenum? 3) There is a little bit of asbestos tape on the duct where the evaporator lines enter. Will the A/C guys remove this? Will they ask for me to have it removed before they work? 4) Depending on the answer to #2...Can I have someone evacuate the A/C system so that I can remove the evaporator and install my humidifier? There's at least two feet of duct below this (and above the furnace) where the evaporator would fit. Mike You need a new furnace. Get it replaced now. Do it right once and for all. Get a pro to do it. Start the payback period of a new system now. Don't put off what is needed. |
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#4
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A/C evaporator location
Why do you say that I need a new furnace? I was asking about the A/C
system. My furnace works just fine. |
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#5
Posted to alt.home.repair
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A/C evaporator location
wrote in message oups.com... The alt.hvac snobs wouldn't answer my question, so I'm posting here... I was going to install my new humidifier this weekend, but I see that the A/C evaporator is in the way. And I have no room on the return plenum. I have an upflow system and the evaporator was installed at the very top of the supply plenum. Here's a diagram: ``````````| ducts to all of the rooms | ``````````+-----------------------------------+ ``````````| | ``````````| | ``````````| | ``````````| A/C evaporator located here | ``````````| | ``````````| | ``````````| | ``````````+-----------------------------------+ ```````````\ | ````````````\ | `````````````\ section of duct | ``````````````\ | ```````````````\ | ````````````````+-----------------------------+ ````````````````| / ````````````````| / ````````````````| section of duct / ````````````````| / ````````````````| / ````````````````+-----------------------+ ````````````````| | ````````````````| | ````````````````| | ````````````````| furnace | ````````````````| | ````````````````| | ````````````````| | ````````````````| | I have some questions about this... 1) Should the evaporator have been installed lower in the supply plenum? (It sure would have made it easy for me to install my humidifier.) Installer made the decision for a reason. Maybe not a good one 2) I plan on having my A/C system replaced this spring, because it is very old and doesn't work well. Can I ask the installer to locate the evaporator lower in the supply plenum? Every evaporator I have ever seen is right on top of the furnance. Mostly because they parts fit together well that way. The picture seems to show a the furnance and evap of differing sizes. 3) There is a little bit of asbestos tape on the duct where the evaporator lines enter. Will the A/C guys remove this? Will they ask for me to have it removed before they work? Asbestos tape?, new one on me. Sure it is not just duct tape? 4) Depending on the answer to #2...Can I have someone evacuate the A/C system so that I can remove the evaporator and install my humidifier? There's at least two feet of duct below this (and above the furnace) where the evaporator would fit. Mike it is impossible to answer you. There are a thousand things to look at and your only providing a few details. Call several licensed contractors and ask them. They can see the job. Might be a good time to replace everything now or maybe wait till after the holiday. Installing the humidier now may be more trouble than it is worth. Mike |
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#6
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A/C evaporator location
wrote in message ups.com... Why do you say that I need a new furnace? I was asking about the A/C system. My furnace works just fine. Surely you aren't going to put a new air conditioner system on an old furnace? New furnaces are ~92-94% efficient. Furnaces that are older than about 12 years old are only 65% efficient at best. Yes, you need a new furnace. Don't half-ass it. |
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#7
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A/C evaporator location
Nick in his ultimate wisdom thinks caulk is always the answer, to bad he
doesn't live in own home were added humidification is necessary. Just as funny-sad is when he used to recommend flooding your basement floor or removing steam radiator air vents for humidification. |
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#8
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A/C evaporator location
Oscar_Lives wrote:
wrote in message ups.com... Why do you say that I need a new furnace? I was asking about the A/C system. My furnace works just fine. Surely you aren't going to put a new air conditioner system on an old furnace? New furnaces are ~92-94% efficient. Furnaces that are older than about 12 years old are only 65% efficient at best. Yes, you need a new furnace. Don't half-ass it. Who said he was going to replace the A/C? He said he wanted to add a humidifier. -- The e-mail address in our reply-to line is reversed in an attempt to minimize spam. Our true address is of the form . |
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#9
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A/C evaporator location
Mine is hooked up on a return with a new duct fed from the supply, same
as yours, an upflow |
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#10
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A/C evaporator location
m Ransley wrote:
Nick in his ultimate wisdom thinks caulk is always the answer... It's the best one. Houses that need winter humidification leak too much air. Just as funny-sad is when he used to recommend flooding your basement floor or removing steam radiator air vents for humidification. Never done that. What are you smoking? :-) Nick |
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#11
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A/C evaporator location
Yes, but I have zero room on the return plenum to mount the humidifier;
it is too close to the wall. There is a nice big spot on the supply plenum, but like I said the A/C evaporator is in the way. And, yes, I will also be having the A/C replaced this spring. What I was considering doing was to remove the A/C evaporator (no, I wasn't going to disconnect it, just pull it out of the plenum) and install the humidifier. The HVAC tech would have to remove this anyway to put in a new one. But this assumes that the evaporator can be installed in the plenum below. Mike |
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#12
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A/C evaporator location
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#13
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A/C evaporator location
You must be senile ol Nick, everyone kicked your butt on your " Keeping
the basement floor wet for humidity recommendation" |
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#15
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A/C evaporator location
wrote in message oups.com... The alt.hvac snobs wouldn't answer my question, so I'm posting here... I was going to install my new humidifier this weekend, but I see that the A/C evaporator is in the way. And I have no room on the return plenum. I have an upflow system and the evaporator was installed at the very top of the supply plenum. snip Do you still have the receipt for the humidifier? If you do, take it back and go by a free-standing whole house unit. I don't mean the ones that hold one gallon that you have to fill daily. Get one of them suckers that look like a piece of furniture. Then place it somewhere near the retuen on your duct sytem. You'll be a lot happier with it...... |
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#16
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A/C evaporator location
Dr. Hardcrab wrote:
wrote in message oups.com... The alt.hvac snobs wouldn't answer my question, so I'm posting here... I was going to install my new humidifier this weekend, but I see that the A/C evaporator is in the way. And I have no room on the return plenum. I have an upflow system and the evaporator was installed at the very top of the supply plenum. snip Do you still have the receipt for the humidifier? If you do, take it back and go by a free-standing whole house unit. I don't mean the ones that hold one gallon that you have to fill daily. Get one of them suckers that look like a piece of furniture. Then place it somewhere near the retuen on your duct sytem. You'll be a lot happier with it...... .... and you won't have to run a water line to it. -- The e-mail address in our reply-to line is reversed in an attempt to minimize spam. Our true address is of the form . |
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#17
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A/C evaporator location
Hardcrab, Buy a freestanding unit you have to fill 5 gallons in every
day or so and pay to run a second apliance when the furnace does it free, and have that extra fan noise and one more piece of junk to store in summer, Dumb Hardcrab real dumb expecialy considering control to an April air that monitors outside temps and keeps humidity optimal and a freestanding unit does little in out of the way rooms, dumb. A furnace humidifier is one of the main benefits of forced air vs HW radiators, yea Ive lived with HW radiators and cheap looking furniture that humidifies and makes noises and rattles . |
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#18
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A/C evaporator location
Yea you dont run a water line just a bucket
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#19
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A/C evaporator location
m Ransley wrote:
Nick in his ultimate wisdom thinks caulk is always the answer, to bad he doesn't live in own home were added humidification is necessary. Just as funny-sad is when he used to recommend flooding your basement floor or removing steam radiator air vents for humidification. He may overstate his case, but there's at least an element of truth in what he says -- leaking your warm, humidified air to the outside and replacing it with cold, dry air which you then heat (lowering its relative humidity) _will_ boost your need to humidify. -- The e-mail address in our reply-to line is reversed in an attempt to minimize spam. Our true address is of the form . |
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#20
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A/C evaporator location
Do high efficiency furnaces really pay off ??? From what I have seen in
newer high effiency hvac equipment the cost savings thru higher efficiency are offset by the higher repair costs..... You can look on the internet and see many many stories of furnaces that have to have the igniters replaced yearly or bi yearly....flame sensors need cleaning...... heat exchangers needing replacement after only a few years......newer equipment doesnt last like the old stuff did.....then you have your hvac companies who spend as much time on parts replacement or new equipment sales training for their technicians than on real trouble shooting and maintenance training. I still see old williamson, carrier, lennox, janitrol, bard furnaces.....all brands that were installed 30-35 years ago still kicking along every winter...good tight heat exchangers...they might require service every few years...usually a thermocouple...if even that....seems withn the newer equipment its something every season....inducer motor bad, flame sensor dirty, bad board...... Today the only way you can expect your furnace or ac to operate right is to have a maintenance agreement with an hvac contractor...this offsets savings even more...and then you might be unfortunate enough to get saddled with a maintenance outfit that requires its employees to sell so many parts a month...which is quite common.... So....really....Is a new high effiecincy furnace or ac system really gonna save anyone money..... |
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#21
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A/C evaporator location
Corny,
You're such a ****in tight ass idiot its not even funny. Nothing like working for the gas utility company. Everything is free and you can screw off, sit in your truck or play with your pud all day long and no one cares. Why should they? All of the paying utility customers are paying for you to sit on your ass and do nothing. No we are paying your retirement program to sit on your ass. Life must be sweet to be such a leech. Bubba On 10 Dec 2005 15:41:33 -0800, wrote: Do high efficiency furnaces really pay off ??? From what I have seen in newer high effiency hvac equipment the cost savings thru higher efficiency are offset by the higher repair costs..... You can look on the internet and see many many stories of furnaces that have to have the igniters replaced yearly or bi yearly....flame sensors need cleaning...... heat exchangers needing replacement after only a few years......newer equipment doesnt last like the old stuff did.....then you have your hvac companies who spend as much time on parts replacement or new equipment sales training for their technicians than on real trouble shooting and maintenance training. I still see old williamson, carrier, lennox, janitrol, bard furnaces.....all brands that were installed 30-35 years ago still kicking along every winter...good tight heat exchangers...they might require service every few years...usually a thermocouple...if even that....seems withn the newer equipment its something every season....inducer motor bad, flame sensor dirty, bad board...... Today the only way you can expect your furnace or ac to operate right is to have a maintenance agreement with an hvac contractor...this offsets savings even more...and then you might be unfortunate enough to get saddled with a maintenance outfit that requires its employees to sell so many parts a month...which is quite common.... So....really....Is a new high effiecincy furnace or ac system really gonna save anyone money..... |
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#22
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A/C evaporator location
I dont work for the gas company, I work for a mechanical contractor
whos major line of business is maintenance and repair of industrial hvac equipment. We also do some commerical type work as most of the plants we work in also have office areas with their own hvac related systems. I did work for the local utility years ago when utilities actually did repair work...for the most part now your local gas man sets meters and hunts leaks...everything repair wise is subbed out to the local hacks.... I know it is odd for me to sit here and knock the very business I make my living at but I have watched the residential hvac business over the last 25 or so years turn into a parts changing or change out the equipment all together business...technicians being taught how to sell the customer on new equipment..technicians being told they need to push at least X amount of dollars worth of parts a month...bonuses given for parts and equipment sales to customers whether they need it or not....technicians being paid flat rate.....this all leads to technicians who become parts changers and salesmen. Im not saying all hvac companies are like this but quite a few are and like other repair oriented businesses you just have to be carefull. As for equipment....anyone in the hvac biz knows thay equipemnt manufactured years ago far outlasted and is currently outlasting in some cases anything on the market built today. Manufacturers are running lean now....they produce an inferior product to keep up the ever increasing profits demanded by upper management and stock holders.....I see equipment on a daily basis that is 30 years old...sometimes older that is still running and has ran good for all those years with minimal maintenace and repair costs...I also see new junk on the market that gets torn out and ends up in the landfill after 5 years...its sad but true. |
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#23
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A/C evaporator location
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#24
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A/C evaporator location
Right Corny, you da Clown, do you push the broom or hold the pan at
work, My 93.5% Lennox has full 10 year warranty 20 on coil and I save 50% over my dinosaur that sounded like one too and leaked Co, It will payback 100% in 3 years, gives more even heat and as a bonus I got AC, amazing huh. Hey it even works unlike the old one. I even got a 4" media filter, and 1st humidifier all while saving 50% on Btu and 20% on Kwh. I bet you think the 80% er is just fine for everyone. But you rent im sure. |
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#26
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A/C evaporator location
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