Untitled Document
Home | Site Map | Contact | Text Size :
 
   
Top 4 things that interfere with central AC - Mnn.com
Take care of the more boring, tedious and important things like these first, before you install new equipment.




Plenty of people who run central air conditioning systems in Houston (and other cities where hot weather dominates the calendar) complain about how their air conditioning doesn’t do a good job keeping their home comfortable, and, in most cases, they are probably right. There are so many things that can and do go wrong with central HVAC systems that it’s tough to know where to start, but I’ll give it a shot.

1. Leaky ducts

Probably the single biggest cause of poor AC performance is leaky ducts. Ducts are kind of like pipes in that they move air through them and deliver it at the end. We notice when our water pipes leak because we see the damage immediately, but we rarely see the effects of leaky ducts directly; rather it sneaks up on us over a long period of time, and many people never figure it out. When ducts leak, they let cool air out into whatever space they are in, often the attic, which, in case you hadn't noticed, can get pretty hot in the summer. Ducts need to be sealed at all the metal-to-metal and metal-to-flex connections — not at the insulation. Have someone pull back all the insulation and put a nice thick layer of goopy mastic at all the joints, then replace the insulation. Don’t use duct tape. It won’t work, and the metal tape designed for ducts doesn’t do a whole lot better.


SEAL IT UP: Leaky ducts are often the culprit behind air conditioners that don't get the job done.

2. Too much or too little refrigerant charge

Something else that can make your AC inefficient is the refrigerant charge. Traditional AC uses a refrigerant that transfers the heat between the inside and the outside. Every system is designed to work efficiently with a specific amount of refrigerant, and too often there is either too much or too little in the system. A good HVAC contractor can check the charge and either add or remove some to make sure it is set correctly. A wrong charge can decrease the efficiency by 20 to 30 percent, so checking and fixing this can make a big difference.


3. Installing the wrong filter

Make sure you have the right filter installed. Most HVAC systems were designed to use one of those cheap fiberglass filters to clean the air. Unfortunately, they don’t do a very good job at it, so many people go to their local hardware or big-box store and buy a super-duper high efficiency pleated paper filter guaranteed to keep their air cleaner. It might actually keep the air cleaner, but it also cuts down on the air flow, making the whole system less efficient. They can make the cooling coils freeze, creating even bigger problems. If you really need a good filter, first seal the ducts to keep the air in and the nasty stuff out, then get a 6-inch-thick pleated filter that fits into a special cabinet which your HVAC contractor can install for you. They do a good job filtering the air and don’t cause the same problems with the air flow.

4. Not enough return ducts

The last thing I’m going to talk about is return ducts. Lots of HVAC systems are installed with a single, large return somewhere in the middle of the house. Each room has its own supply, but the air is supposed to, sort of magically, slide under the door and get back to the big return duct to be cooled again. The problem is that the space under the door usually isn’t big enough, so the air doesn’t flow through the whole house well enough to keep things evenly cooled. Some rooms are hot, some are cold, and none is just right. Consider having an HVAC contractor add some extra return ducts in bedrooms and other rooms with doors (except for bathrooms) to give you better air flow and increased comfort.

Notice that I haven’t said anything about equipment efficiency. That’s what the manufacturers and installers talk about, because they can make a lot of money selling you fancy, expensive air conditioners that are super efficient. The problem is, if you put one of those on a system that is otherwise pretty crappy, you have wasted most of the super duper efficiency you paid for. Take care of the more boring, tedious and important things like these first, before you install new equipment. You’ll be much happier, and more comfortable. Then when you want to put in that super duper equipment, you’ll have a really good HVAC system.

Source


รายการข่าวอื่นๆ มีดังต่อไปนี้ :
Keeping Cool with Solar Energy - getsolar.com
Tips for improving the air quality in your home - phillyburbs.com
Satellite chilled water facility increases cooling capacity on campus - Las Cruces Sun-News
Guam Airport to Save $1.3M a Year With Lighting & Air Conditioning Upgrades - Pacific News Center
Cooling a Computer Server With Mineral Oil - The New York Times
Technotrans launches 'world's smallest' compressor in UK
Cool Technologies 2012 interim report demonstrates increased interest in HFC-free technology - hydrocarbons21.com
Southeast Asia Air Conditioning and Refrigeration Specialists Urged Not to Miss Emerson Cup as Closing Date Approaches - prnewswire.com
Panasonic Offers Android-linked Air Conditioners, Refrigerators and Washers - pcworld.com
Facebook highlights water efficiency usage at its data centers - Zdnet.com
Inspection cutbacks could lead to deadly legionnaire's outbreaks - Guardian.co.uk
MIT develops new "reverse air conditioner" solar power system for the developing world - Gizmag
Making Every Air Conditioner A Smart Air Conditioner - Fastcoexist.com
LG air conditioners protect against allergies - Pr2live.com
The World’s Least Carbon-Emitting Building? - Earthtechling.com
Air conditioner fire sends smoke into Vegas hotel - Bloomberg Businessweek
Is the switch to HC equipment possible? The answer is “we already did it!” - Hydrocarbons21.com
ANALYSIS - e360.yale.edu
Did You Know The First Air Conditioner Ever Was Installed In Brooklyn? - Gothamist.com
Save energy while staying cool: tips for making the most of your air conditioner - PennLive.com
มีหัวข้อข่าว 232 รายการ : 12 หน้า
Page << Back | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | Next >>
   
 
 

        NEWS & EVENTS
บริการของบริษัท
- ระบบปรับอากาศขนาดใหญ่ ชิลเลอร์ CHILLER
- เครื่องทำลมแห้ง AIR DRYER
- รับออกแบบ ติดตั้ง บำรุงรักษา จัดหาอะไหล่ และซ่อมแซม COOLING TOWER
- งานท่อแอร์ และหุ้มฉนวนท่อ DUCT WORK and PIPING
- สินค้าชนิดพิเศษ Special Products
  more>>
สินค้า
- PE Series (Package)
- PE SERIES (Mr. SLIM)
- SE SERIES (Mr. SLIM)
- PS SERIES (Mr. SLIM)
- SL SERIES (Mr. SLIM)
  more>>
ลูกค้าที่ใช้บริการ


more>>
รูปแกลอรี่
- งานเปลี่ยน ท่อน้ำและวาล์วควบคุมระบบ Package Water Cooled
- งานเปลี่ยน Package Water Cooled ขนาด 25 Tons
- งานเคลือบผิวท่อด้วย Fiber Glass พร้อมทำสี
- งาน Overhual Motor & Pump ขนาด 125 HP
- งาน Overhual Motor & Pump ขนาด 125 HP
  more>>
11 Easy Ways to Be Greener on Earth Day
When is Earth Hour 2017? What is it and how you can get involved in the WWF 'blackout' event
Why changing your home's air filter is important
Could this tent make camping COMFORTABLE? £200 Siesta4 reflects sunlight and uses 'air conditioning' to keep it cool and dark - dailymail.co.uk
Decor choices affect indoor air quality - lfpress.com
  more>>



All Rights Reserved © 2011 Muang Thong Engineering (1998) Company Limited
40/5-6-7 Sukhumvit 71 Prakanongnue, Wattana, Bangkok 10110
Tel: 02 391 8027, 02 390 1242 Fax: 02 391 6100 E-mail: mte1998@gmail.com


cheap air jordans|pompy wtryskowe|cheap huarache shoes| bombas inyeccion|cheap jordans|cheap air max| cheap sneakers|wholesale jordans|cheap china jordans|cheap wholesale jordans|cheap jordans|wholesale jewelry china