PSA, Check Your Air-conditioning...
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advice needed regarding air conditioning refrigerant leak
Comments (4)The system warranty was just for 5 years, regarding service history; last time the system was checked by a tech was at the end of the warranty period and it was OK. The tech who checked my system yesterday is from the same company how installed the system in my house (the system was installed at the time when the house was built) and therefore I believe he is a qualified tech, but it does not make since to change everything because of a leak! The tech mentioned that to locate the leak it is going to cost me $300, and after finding out where it is leaking from, then he can provide me with an estimate for fixing it (if possible . . . that what he said) and therefore the total cost could end up close to replace the full system. So his advice is to replace the system because in this case IâÂÂm going to get another a 5 years warranty. Is it a good idea to ask for adding Freon and see how long it will hold? So based on that I can predict if the system has a serious leak or not before spending the $2000. Thank you all...See MoreHelp needed-Arizona air conditioning replacement
Comments (3)My inclination would be to go with the second company who took the time to do load calculations. I would never do business with an HVAC contractor who didn't or wouldn't perform this all-important step. The next thing you need to do is check references. Does company no. 2 have a long list of satisfied customers? Do they have complaints lodged against them with the Better Business Bureau? Are they willing to stand behind their calculations, and guarantee that your cooling needs are met? There's a good chance that your existing AC unit is over-sized. It's a very common practice to install bigger units than are needed, especially of the original installation was chosen using "rules of thumb", instead of with proper load calculations. If your current system cycles on and off during the hottest part of the day, it's a sure sign that it's over-sized. A properly sized system may cycle on and off during the early part of the day and during the evening, but it will run steadily (which is more efficient) during the hottest part of the day while maintaining interior temperatures at your desired setting. You might also want to ask your neighbors and friends for recommendations on HVAC contractors and seek a few more estimates. Referrals from satisfied customers (especially if they're your friends), can be one of your most reliable resources....See MoreHow You Can Check Your Home & Air Conditioning System
Comments (5)I just now came back to see some responses here. Hey, Coolmen CJ, congratulations on being NCI Certified. No it is not spam; I nor no one else makes a penny from the information I provide on my Web sites. However, if you are a good Tech, you will get a lot more work, because when folks get interested in how their HVAC system is performing & in knowing how to reduce energy use, they will call a contractor for Tech help. I think he is getting a little too hi tech. for the home owner to do all this checking. How many home owners are going to buy air testing meter? (They don't need it.) A lot of dealers don't have them. Later paulbm I don't actually disagree with you Paul. The Tech needs all the air testing instruments; the folks running my simple test only need a thermometer & either a humidity gage or do a wet bull temp check. They can respond on twitter or on a forum, or e-mail me, & I'll go much further with that seemingly insignificant information. Just using that little info data; I can tell them an amazing amount of performance & trouble shooting information, concerning their system's performance. If they provide supply air & rerurn air wet bulb, I can closely ballpark with psychrometric software the BTUH that their system is delivering within those operating conditions. Every Tech could do that, especially if they had worked in HVAC/R since before the mid-1970's. The mfg'ers ought to provide the condenser splits so I wouldn't have to do extra figuring to get the condenser temp split at differing load conditions. Challenge me with actual test data & I'll show what we can come up with I need to know the "SEER Rating of the condenser." Typing with eraser ends of pencils, cause my hands are messed-up is difficult so I'll quit, for now. - udarrell Here is a link that might be useful: Simple A/C Performance Checks Anyone Can Do...See MoreNeed new central air conditioning system
Comments (4)Thanks, Ryan. I forgot to mention that my house, which is rectangular, is situated so the the garage corners face SE and SW and the bedroom corners face NE and NW. Helps with the sun. Except for one spot the sun never directly comes into the house due to those wide overhangs. Prior to the leak, the current system kept the house cool unless we topped 100 which happens during the summer. This summer is shaping up to be very hot and dry. I am on an averaging billing system for my gas/electric from CPS, our local utility company. In the winter, they average around $90 and during very hot summers can go as high as $125.00 The Ruud consultant/contractor has given me three bids. Bid 1 is $6946 for a complete heating and AC 16 SEER 3 ton Ultra1 2 speed condenser, 4 ton evap. coil (RCFM Hm48), and 70,000 BTU furnace (Model UGPRO7E) with a new thermostat as this unit won't work off the power company's. Bid 2 is $5206 for a complete system Ruud 14 SEER 3 ton system (don't this this has the 2 speed condenser though). Bid #3 is $4116 and is for a 14 SEER 3 ton condenser/coil and keep the present furnace which is still working. If the furnace goes out later, it can be replaced with new one. Both bids 3 & 3 leave the free power company thermostat in place. All bids include a new 3/4" plywood bas for the furnace, an E-Z filter bas , setting and leveling A/C pad, upgrade PUC Sch 40, inspection and resealing all existing air duct and adding an a AC grill & boot in my sewing/ironing room adjacent to the laundry room by tapping into the laundry room duct. I can get a Guardian Air filter with either system for an additional $626. Is it worth it? I passed on the UV light. Only the 16 SEER qualifies for the $375 Energy Star rebate from the electric company and he will match it. If I go the 14 SEER route, he has a $300 coupon in the yellow pages. Plus, he's offering zero financing for 12 months. I have the money in savings, but might just put it in a six months CD at higher interest and pay off everything on month 11. The Ruud guy said unfortunately, he finds the duct work in San Antonio to be of poor quality. So I will definitely have that checked. Are there companies that only evaluate this or should I trust the AC contractor's evaluation. The Lennox guy is coming next week. I'll call Trane and set up an appointment next week. My daughter-in-law's mother has had them for years and had very little problems....See More- last year
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