Outdoor A/C compressor runs when Gas Furnace kicks on in Winter
David Keith
5 years ago
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tigerdunes
5 years agoDavid Keith
5 years agoRelated Discussions
Carrier A/C and Furnace Infinity Series estimate
Comments (4)1.I would want to see a load calculation in writing for each zone. I question the sizing especially on the furnaces. 2. Keep in mind basements at or even partially below grade have a very low heating and cooling load 3.assuming you have no installation issues with outside venting, I would get a price on Carrier's 58MVC high eff furnace for the main floor/basement zone. 4.as far as heat pumps, you would need an analysis of your electric and at gas rates. 5. If you have humidity issues in the basement, you need to address the issue of why before trying to solve with dehumidifiers. 6. Dealer should address your temperature issue with the master bedroom with insulation check and ductwork size check. I will assume room is the opposite in the winter heating season. Windows are high quality? 7. I always prefer new and correctly sized refrigerant linesets. IMO...See MoreUrgent advice needed on Furnace and A/C
Comments (7)"So, my questions are: - Is it common to have the furnace broken/to replace the igniter so often especially for a new furnace? What could have been wrong with the unit to cause this? Could we have gotten a faulty furnace unit?" * Yes, you could have gotten a bad batch from the mfr. They are warranted for 5 or 10 years, part only. Installation labor is typically 1 to 2 years as you know. - Is there anything we could do to to protect ourselves from having this happen and end up having to pay for the cost of repairing it on our own expenses in the near future if this keeps happening? * Yes, you could get a 10 year parts and labor warranty from the mfr for additional $$. Should cover everything (ask what it doesn't). - Also found that our Gibson a/c unit is making a loud noise/humming sound when it is running (i.e. air is blowing). Is that normal? It is bothering me because the units are on our deck right above our master bedroom. * The location of the units is the problem. Gibson units are basic, builder's grade. You'll hear even the quietest condensers when they run at night where they are located. " - When the a/c kicks in, I can hear a "sparks" like sound at the thermostat and also at the a/c unit at the start of the cycle - is that normal? I asked the contractor and the technician, they said it's normal but I have doubts." - You are hearing the 24 volt contacts in the thermostat energize to turn your system on. You may here several clicks: 1 for the fan, 1 for the furnace or air conditioning. "Anyway, I doubt we could get the developer to warrant or guarantee anything beyond 1 year given the "unusual" problems we have given a new furnace and a/c....I am sure the developer will not do much if anything because they will of course try not to incur more cost than they have to." - You are dead wrong on this. You sound like you already lost. You need to get the developer, a/c contractor, and system manufacturer (all 3) to get involved and solve your problem. Anything less and your problem will never be solved, and you'll complain about it as long as you're in the house. It's a new home and needs to be right. "I also just found out that our furnace units were not registered by the installer within 60 days after installation so we default to only 5 year manufacturer's warranty instead of 10 year warranty. Very very frustrated and upset about this!" - Call the mfr and fight it. Happens all the time in new construction. It's up to you to get that warranty. "Any advices will be greatly appreciated. THANK YOU!" - Start getting things done. - Complain a lot less. Good luck....See Morea/c & gas furnace vs heat pump with gas backup
Comments (6)Based on the information you've provided, sounds like the York quote is the best option, but I don't agree with the 80% modulating furnace. That's a high-end furnace, and going with the 80% version doesn't make sense to me, especially in our region where it can get cold at times (I'm in Maryland). Is PVC venting an issue? The York Affinity is a nice line of equipment. American Standard isn't bad, either, but the equipment that the York rep. is quoting is better in my opinion. 3 tons is a bit much for your cooling load, but it's what you'd have to go with if you went with the Affinity line. The 2.5-ton Latitude unit would be the better fit. With the low stage on the Affinity approximately meeting the cooling load at design conditions (which won't be met on all days), I don't think you'll be getting those long run times that you should with a 2-stage system. Ask the York rep. if he can quote the CZB or YZB 2.5-ton single-stage Affinity unit with a 90+ efficient v/s furnace (modulating or 2-stage). Not sure where the American Standard rep. came up with his sizing. Do you like it cold in your house (68-70)? Did the York rep. do the load calculation?...See MoreHelp choosing A/C & Furnace Replacement Quotes
Comments (10)I was able to get info on the existing furnace from the data plate. It's a Carrier Model 58ss140-BC, Series 110, 167,000 BTU. The data plate said the blower is "157", whatever that means. The motor spec was 1/2 hp. Mfg date 1982. That's all I found on the furnace. I found next to nothing on the a/c. The data plates outside are gone. I could see where it was but there was just rivets. A single, long rectangular unit outside. Like I said, vintage 1974, from the builder. According to my mother, the quoting contractors guessed that the system was 4 or 5 tons. I don't know anything about who said what. Turns out the Lennox/Costco guy was the only one to quote an upgraded unit. He also quoted: Option #3B. $9,185. Platinum Package. A/C XC17-048 and 2 stage gas furnace SL280UH135 with variable speed and I-Comfort Communicating Controller. I'm having a hard time getting her to look at the Am Std quote because they didn't quote her an upgraded unit option and their basic units were only about $1,000 cheaper than the upgraded Lennox units. ($9,145 vs $7,945). About the house, I tried to describe it above. Built 1974. 3200 sq ft. and two stories. Attached garage. Full sun exposure--the property is not shaded. Brick exterior with not a whole heck of a lot of insulation. (I remember my parents being mad that the builder gipped them on the insulation.) High quality house though, expensive neighborhood. Stick framed over a full basement. Attic with pitched shingle roof. Colonial. Original single pane wood windows with storms windows, maybe a tad drafty. After being widowed with 4 kids in 1978, she never had the money to remodel anything and everything is pretty much 1974. Anything else you want to know about the house, please ask. This is all I could think of....See Moremike_home
5 years agoDavid Keith
5 years agoDavid Keith
5 years agolast modified: 5 years ago
Elmer J Fudd
5 years agoDavid Keith
5 years agokevinande
5 years ago
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