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I had an A/C unit with gas furnace installed in a rental property in May of 2007.

The very first year the humidifier (which sits above the evaporator that then all sits above the furnace) leaked...

SORRY NOT 404a....I work in transport refrigeration, we use 404a in reefer units. I meant 410a. It's just a bad habit.

Thanks for your response. I was hoping that duct modifications wouldn't be...

Thanks in advance...


BACKGROUND: I have a 3 story rental "row home" type townhouse. It's 1950sq ft over 3 levels that are all 650sq ft each. The current system is 2ton cooling with natural...

Thanks for getting back to me!

I think you've helped me narrow it down to 2 from 6! (ArcoAire and American Standard)

I will go back to the Arco guy and see about his sizing. (The trane quote...

Perfect. THANKS!!

The last time I needed a complete system replaced I had three contractors come out to bid and only 1 actually returned me a quote. This time I may have called too many contractors because now I have...

Good Afternoon.

Purchasing a commercial building with a few roof top units. I'm hoping someone can tell me more about the unit. i.e. How old it is and what size it is.

Hopefully if I'm doing...

So the outdoor unit (condenser) should kick on if ANY of the three zones are calling for cooling, correct?

I have a bryant A/C and furnace with professionally installed honeywell zone controller HZ311. There are three zones. One of the zones is controlled by what I gather from the manuals is some sort...

Anyone who is concerned about the cost of a fiberglass filter might as well just not run his/her HVAC system at all.

I am a homeowner with three Tempstar units that were installed just last year. One 2Ton 14 Seer A/C and One 2.5Ton 14 Seer A/C. (Model T4A4). I also have a 2ton 13seer on a rental property (T4A3) ...

I guess I'm going to contact my HVAC contractor and show him the pics that key1cc has posted. To me as a non-pro it seems we had a similar issue. I like the way your after pic looks, and thats...

http://i195.photobucket.com/albums/z286/jasruby79/IMG_0232.jpg

Here is a photo (sorry it's sideways) of the system.

Yes, you all have been very helpful on previous questions for both my home and my mother in-laws home. I got my system before I found this website, so there are things I would do differently...but...

Since my system was installed last year I have not been happy with the filter situation. The system works great, but I feel airflow is lacking. Possibly these two issues are related. I will...

Yes, I am aware that opening the windows would be more efficient. :rolleyes: Sometimes, you just aren't there to do so...or you forget. I was wondering what temp damage would occur at.
...

I have A/C only, no heat pump. There are many days this time of year when outside day highs could be 85-90 and nightly lows could be 50.

My concern is sometimes during the night, even when it...

Thats funny...we have a scrap yard down the street that has a sign about selling used levi's jeans :eek:

Just in the last few weeks the lines to drop off have been around the block. The value of...

I also had my decision down to Carrier units (24ACA4) or Tempstar units (T4A4). I decided to go with the Tempstar units, and I am very happy with the decision I made. During my research I found the...

High limit switch? Is this something that is tripped if there is too much static pressure? If so, why would the unit run fine in cool mode? Is it possible the installing company sold me a size too...

I have an Amana furnace AMH8 http://www.amana-hac.com/Portals/1/pdf/SS-AMH8.pdf with a VisionPro thermostat (But not the IAQ version)

I have the thermostat programmed so the furnace blower will...

I had my contractor recently install a mitsubishi Mr. Slim in a server room. The indoor unit is flush mounted in the ceiling. I believe this is the model:
...

I am looking for a new home and have been going through the model homes at a few neighborhoods. I am hoping someone can answer a question that the "builders rep." could not. Bear with me I am no...

I contacted one of the contractors on that website. They advised me to have them come out before doing any upgrades/improvements. They also mentioned that the plastic dome skylights are prone to...

I have an 1800sf home in Colorado with a 2TON A/C. It was installed last year and already had a tune-up at the beginning of the summer season.

The system works great when OD temps are below 95. ...

I know they point of the OP's question was to save on money and not to spend more money in the process...but I bought one of these:

http://www.theenergydetective.com/index.html

I can't really...

Some PRO or perhaps another homeowner on this site suggested trying TED (The Energy Detective.) I had previously posted about electricity usage and a 13 SEER system. I understand there are many...

He is correct on both...The outdoor unit is a 13SEER A/C Condensor 4 TON. Probably new in '05 or '06.

Not sure why it would be marked as heat pump?

I am not an HVAC pro, but I am a pro on this exact question. I was quoted for two mainline Tempstars (Model T4A4) but the day of my install the HVAC company arrived with two of Tempstar N4A4.
...

You all have been very helpful in getting my resi system up and running. Now it's time to tackle the office.

I have a new tenant finish 2500 sqft office inside of a 12000 sq ft warehouse. The...

HVAC Company showed up on Saturday, turned on unit and no problems. They checked all sorts of things and told me they found nothing wrong. They said there may have been a power surge or spike that...

I guess I failed to tell the wife the A/C wasn't working. She turned it on a little while ago..and all is working. :confused: HVAC people are scheduled to be here Saturday.

ACMECH13: No,...

My neighbor is a certified electrician he is even the one who pre-wired my outdoor unit before the HVAC company came out.
He checked the breakers, etc. Told me that the "TRIP" light is on. He...

About two hours ago I noticed there was air (but not cold) blowing from the vents. I have a VisionPro 8000 thermostat and the "cool on" indicator was lit. The outdoor unit (Tempstar T4A4 2 TON) was...

thanks...worked like a charm.

I totally agree... potheads aren't what really concern me...

Tweekers suck..and need to get help!

Maybe a question more for This Old House but...

I have a 1/2 bath on the main floor of my house. For years and years the door has squeaked. After years of having it on the "honey-do" list, I put...

I have two new Tempstar units also with dual speeds. One 2 Ton and one 2.5 Ton.

According to ICP literature the speeds for both units are 825HIGH/750LOW RPM.

The fan motor on the 2TON unit is...

We hit 100 here two times already this year! (Normally we do not hit 100 ALL SUMMER...high 90's yes, but rarely 100.)

I have owned by home for about 5years, never had A/C...until this May. Six...

I am not a pro so I can't comment on your installation, but I have two of the same model tempstar A/C and absolutely love them. (One 2 ton and one 2.5 ton) I can stand right by mine and still hear...

I have a whole-house type of fan located at the top of the stairs in my three story row home. I have two issues. (Nightime temps here still drop into the upper 50's so the whole-house fan is very...

I also live in CO but inside a city limit. My local city offices issued the permits. I can tell you it took only one day for my contractor to do. My contractor went to the city, obtained a...

Without creating a new thread, can someone tell me more about the low ambient control? We have daytime temps in the upper 80's and then night temps can still drop into the upper 50's. If I leave...

As fire mentioned, the PRO's will need more info for a professional answer. I can tell you my story from experience. My in-laws have an outdoor pool, very similar in size to your own. Year before...

All you Pro's on here and nobody can tell me if it's recommended to clean my outside unit with water or some other method in between my yearly HVAC checkup?

I live in a row-type townhome with neighbors on both sides of me. I have no choice but placing the outdoor condensing unit on my patio directly infront of my home.
My neighborhood is very old...

I am both a homeowner and business owner. I have my MBA but I do not have any detailed knowledge of how my HVAC system works (except for the few questions I have asked on here and the basic...

Lets just say I wasn't a very informed "H.O." (I found this website/forum DURING my actual install, and AFTER I had signed the contract.) I didn't feel like being a "nightmare" customer and...

I am a homeowner who just recently had a new 14seer system installed. I would have loved to get a 10seer unit for one reason: SIZE.I have a three story townhome, but have very little room for the...

This previous thread may be of some help to you:

http://hvac-talk.com/vbb/showthread.php?t=139319&highlight=sj22