ac size

Yeah, like his statement (I mean BULLSHIT) below...

"I use a mere half ton 6,000-BTUH room AC that cools perfectly the first
floor 3 rooms & a hallway, over 900-sq.ft. at 104 Heat Indexes!
900 / .5 ton = 1800 Sq.Ft per a ton of cooling in an old 1930's home,
come here on our hottest days and I will prove it to you! (Airflow!)"

Posted by udarrell on June 14, 2007, 8:55 am

kjpro @ usenet.com wrote:

>>>Jon Clark wrote:

>>>

>>>> <>Greetings,

>>>>

>>>> I am badly in need of opinions. Although I have seen this

>>>> issuediscussed

>>>

>>>> <>in several threads, I still am uncertain as to which direction to

>>>> head.

>>>>

>>>> I recently replaced our AC. At the time of the quoting process, my

>>>> house

>>>> was calced at 31/2 ton (1800sf, ss, 100+ summers). Upon selecting the

>>>> contractor, I asked for the 16 seer. I was told it only came in 4

>>>> ton, but

>>>

>>>> <>since it was 2 stage, it would not be oversized for my house. I

>>>> went with

>>>

>>>>it. 2 weeks after install, I was on the manufactures web site and saw

>>>>

>that

>>>>the unit was not 2 stage. I presented this to the rep and he got back to

>>>>me admitting he had made a mistake and that brand did not have a 4 ton 2

>>>>stage. Although, he claims they will make it right, he feels that the 4

>>>>ton single stage will be OK for our house/area (of course). So far we

>>>>

>have

>>>>not had enough hot weather to heavily test the unit. We have had a few

>>>>warm days where we ran it for a few hours. I did notice it being

>>>>

>slightly

>>>>humid, as far as what constitutes a short run cycle, I am uncertain. It

>>>>didn't seem to start/stop excessively.

>>>>

>>>>So, should I press for a change out now, wait for hotter weather before

>>>>deciding, or is the difference between 3.5-4 ton so marginal that there

>>>>

>is

>>>>likely no problem? Thanks in advance for any advice.

>>>>

>>>Concerning the condenser, it is unthinkable that he could have made such

>>>an error in claiming he was installing a two stage unit!

>>>I need to know what major city you live near to get the Summer Design

>>>Conditions there!

>>>Here in SW WI with Heat Indexes up to 104, there are 2400-sq.ft. homes

>>>with 2-ton units cooling them perfectly.

>>>

>>I am not HVAC perso but "Darrell" you know that you are full of crap

>>with 104 heat index and 2400-sq ft.he be lucky to get way with 4 ton

>>Tony say that

>Yeah, like his statement (I mean BULLSHIT) below...

>"I use a mere half ton 6,000-BTUH room AC that cools perfectly the first

>floor 3 rooms & a hallway, over 900-sq.ft. at 104 Heat Indexes!

>900 / .5 ton = 1800 Sq.Ft per a ton of cooling in an old 1930's home,

>come here on our hottest days and I will prove it to you! (Airflow!)"

"You are correct kjpro," on reassessing there are a lot of walls and a
kitchen cupboard area,. therefore I am reducing the actual area to
700-sq ft., that would be 1400-sq. ft. per ton in a 1937 home with a lot
of windows. That is over twice what most of us would consider the BTUH
per sq. ft., ought to handle the heatload. Eight foot ceilings or
5600-cu.ft of air to remove the latent & sensible heat from.
It has a cool basement below the first floor and a hot second floor area
above it, which I usually cool toward evening only one room, the hallway
& bathroom using a 20" floor fan to circulate the air. I use a 12" fan
directing air into the Return Air of the 5,950-BTUH Kenmore Room AC. It
cools things down in a short time span to a low comfort level.

It is not easy for me or my brother who lives within 75 yards of me to
believe it either, however, I have been used two different a half ton
room ACs for many years have been doing precisely that, as stated here &
on my web page. I do not expect you or anyone else to believe it,
because if I were not experiencing it I would probably tell someone else
that it would be BS, too.

I really like this 6,000-BTUH 9.7-EER Remote controlled Quiet Partner
Series Whirlpool that I have been using for the past three years. It has
three speeds and excellent airflow through the evaporator coil. If the
humidity is high I operate the fan a lot on the low speed.

I was using only one 20" fan at the AC, I just bought another 20" Wind
Machine 3300 to put in the kitchen to circulate the air faster back to
the Room AC.
Yes, it says it cools rooms up to 225-sq.ft., it is the positioning of
the fans and the long to continuous runtime that make the difference.

Thank you kjpro for your input, the needed adjustment should be closer
to the reality! I am always open to corrections!
http://www.udarrell.com/airconditioner_current_temperature_btuh_charting.html
- udarrell

--
WISDOM PRINCIPLE DIRECTED EMPOWERMENT COMMUNICATIONS -
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http://jesuschristsavior.net/Beatitudes.html

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Reality Is Not An Easy Thing To Be Confronted With, or to Accept!

Posted by HVAC fella on June 14, 2007, 6:24 pm

'I recently replaced our AC. At the time of the quoting process, my
house was calced at 31/2 ton (1800sf, ss, 100+ summers).'

REPLY: If you are in a locale that sees 100 plus temps. often, I would
not hesitate about putting in a 4 ton capacity system. The difference
between 3.5 and 4.0 tons is very minor (6,000 btus). In addition to a 4
ton system, make sure you have a roof mounted Attic Fan with adequate
intake air. THis combo will work well.

Posted by udarrell on June 14, 2007, 9:43 pm

HVAC fella wrote:

>'I recently replaced our AC. At the time of the quoting process, my

>house was calced at 31/2 ton (1800sf, ss, 100+ summers).'

>REPLY: If you are in a locale that sees 100 plus temps. often, I would

>not hesitate about putting in a 4 ton capacity system. The difference

>between 3.5 and 4.0 tons is very minor (6,000 btus). In addition to a 4

>ton system, make sure you have a roof mounted Attic Fan with adequate

>intake air. THis combo will work well.

Well, here in SW WI even at 104-F Heat Index we are cooling an
1800-sq.ft. home with some shade and proper insulation with properly
installed 2-Ton systems. If you do what ought to be done, I am betting
properly installed 3-Ton system will do the job more efficiently.
With 1800sq.ft., that is only a hair over 600-sq.ft. per ton. A 4-Ton
system is 450-sq.ft. per ton! What is it, all windows with some of them
cracked open?

In Ohio some are cooling 2400-Sq.ft. homes with 2.5-Ton systems.
Is the ductwork sized properly, insulated properly and sealed tight? Why
do you need 4-Ton? What are the ambient Heat Index Temperature ranges?
http://www.udarrell.com/proper_cfm_btuh_duct_sizing_air_conditioning_systems.html

DISCLAIMER:
I assume NO responsibility for the USE of any information I post on any
of my Web pages or on NGs.
All HVAC/R work should always be done by a licensed Contractor &
properly licensed Techs'! This information is only placed on these pages
for your understanding & communication with contractors & techs. This
information is also for the edification of Contractors and Techs. I am
NOT liable for your screw-ups, you are liable for what you do! - udarrell

--
WISDOM PRINCIPLE DIRECTED EMPOWERMENT COMMUNICATIONS -
THE REAL POLITICAL ISSUES and WISDOM BASED PEOPLE EMPOWERMENT

http://www.udarrell.com/

http://www.udarrell.com/my_pages2.htm

http://www.udarrell.com/principled_adjudication_disputes_administration_justice.html
(Needs Editing ASAP)

http://www.udarrell.com/recognizing_real_enemies.html

http://jesuschristsavior.net/Beatitudes.html

http://www.antiwar.com/ ***

Reality Is Not An Easy Thing To Be Confronted With, or to Accept!

Posted by HVAC fella on June 15, 2007, 6:53 am

'Well, here in SW WI even at 104-F Heat Index we are cooling an
1800-sq.ft. home with some shade and proper insulation with properly
installed 2-Ton systems.'

REPLY: Yes, but what temp. are you maintaining inside ? 80 f ? The
average comfort temp. is 74-76 f. according to ASHRAE.

'With 1800sq.ft., that is only a hair over 600-sq.ft. per ton. A 4-Ton
system is 450-sq.ft. per ton!'

REPLY: That is not unusual for very hot climates like Florida , etc...
With the summers getting hotter virtually everywhere in the nation,
undersizing an a/c system is more ludicrous than ever. People arent
going to be happy waiting 4-5 hours to get their house cool after coming
home from work.

'Is the ductwork sized properly, insulated properly and sealed tight?
Why do you need 4-Ton? What are the ambient Heat Index Temperature
ranges?'

REPLY: All these things, and more, are definetly worth considering and
investigating. Providing the OP's contractor did his homework and
arrived at between 3.5 and 4.0 tons of cooling ...id opt for the 4 ton
given the extreme climatic conditions that exist and will continue to
increase.

Page 6 of 6 << first < 1 2 3

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