Volume 36, Issue 3, March 2004, Pages 273–279 Enhancement of ventilation performance of a residential split-system air-conditioning unit Received 31 October 2003, Revised 3 December 2003, Accepted 10 December 2003, Available online 10 February 2004The design of ventilation performance of air-conditioning systems in large commercial and office buildings is quite established. However, it is not the same with the designs of air-conditioning systems in most residential buildings. Split system air-conditioning units are commonly employed in residential buildings in the tropics due to their convenience in terms of energy conservation, aesthetics, flexibility, acoustic performance and ease of operation. Such units are also popular among small offices, shopping complex and even as supplementary air-conditioning units beyond normal office-hours in large commercial and office buildings. This paper presents findings from a recent study of the ventilation performance and indoor air quality (IAQ) in a master bed room of a condominium unit in Singapore, employed with a split system air-conditioning unit.

The attached bathroom is equipped with an exhaust fan, whose operation and its impact on the resulting ventilation characteristics was also studied. Four adults occupied the room throughout the course of the experiments. It was observed that the carbon dioxide level in the bed room can exceed 2000 ppm without the exhaust fan in about 2 h. The operation of the exhaust fan quickly lowered the level of carbon dioxide to about 1000 ppm. The findings suggest the need to design for ventilation provision in split system air-conditioning units.Copyright © 2004 Elsevier B.V. Thank you for considering Jon Wayne to repair your air conditioning system. At Jon Wayne, we offer fast and friendly AC repair service throughout the San Antonio, TX area on all brands of AC units. We know there are so many San Antonio AC repair companies to choose from when your AC breaks down. At Jon Wayne, our focus is on residential AC repair and replacement, so you’ll be sure to benefit from our: Fast, Same-Day Service – Did you know that 97 percent of our service calls are completed the same day?

Fully Stocked Trucks – Our fully stocked trucks allow you to get your AC repair completed right after diagnosis—eliminating the time you spend without the comfort of your air conditioner.how to design air handling unit Expertise in Residential AC units – We can service all brands of air conditioners, including Carrier, Bryant, Payne, Ruud, Lennox, Trane, and more. big window unit air conditionerWe also specialize in repairing older, obsolete models. best affordable ac unitIf your unit is really old, chances are good that we can fix it. NATE certified AC technicians – Our air conditioning repair experts can provide you with a faster, more accurate diagnosis. We have our own, in-house air conditioning training school where our technicians are instructed daily on new technology and procedures.

When you call Jon Wayne for air conditioner repair in San Antonio, we will: Arrive in a fully stocked truck, wearing a clean uniform and shoe covers to protect your home Perform a complete system evaluation to determine why your system is not working properly Explain to you what we found along with a list of options (from a basic air conditioner repair to an optimal, longer-term solution like air conditioner replacement) Offer our flat-rate pricing to show exactly what the repair will cost you upfront (no surprises) Use drop clothes to protect your home during the repair and clean up completely when done Once the problem has been diagnosed, our technician will explain to you what they found and recommend various solutions that we can provide and how much each option will cost. All repair prices will be established from our upfront, no-risk pricing guide. We do not charge by the hour and there will be no surprises. The price you are quoted is what you will pay, regardless of how long it takes for the repair to be made—that's our guarantee.

If you approve one of the repair options presented, we will waive the service call fee and perform the work immediately. Our trucks are fully stocked with all the components your air conditioning system will need. We service all brands and models, and our technicians are trained on how to repair older, obsolete equipment. Jon Wayne offers free second opinions on major air conditioning repairs. This is a wise option to take before committing to a major repair expense. We will send out a highly trained, NATE certified technician to perform a complete diagnostic on your AC system and then provide you with a competitive quote. To , you will need to provide us with the invoice from our competitor and the quoted system repair must be over $500. We have earned our reputation as San Antonio's largest residential AC repair and replacement company by providing fast, dependable service to our customers. We are committed to fixing your system right the first time and on time. We focus on keeping our technicians highly trained and making sure we exceed our customers' expectations on every job that we perform.

For your convenience, you can schedule your service call online by using the button below. What Your Neighbor Had To Say... Our Guarantees To You Why You Want a NATE Certificatied Tech When You Should Repair vs. Replace We're your single source for all your home service needs, including: Jon Wayne offers air conditioning repair in the following areas:You trust your A/C to cool your house... now trust it to heat your water for free! Right now you’re paying the electric company to run your air conditioner to take heat out of your house and dump it in your yard. While, at the same time, you’re paying the electric company to make hot water for your shower, dishwasher, laundry, etc... The AQUEFIER® Heat Recovery Unit captures waste heat discharged from an Air Conditioning or Heat Pump system, and transfers that heat into a water heater tank, thereby creating low cost hot water for domestic use. Cut Cooling Cost up to 15% Cut Water Heating Cost 50% or more

Added together, that’s a savings of up to $700.00 a year for you!View Aquefier brochureHeat Recovery Unit Installation Instructions (Video) I spoke with you yesterday about the noise (WA-WA) that was coming from my ECU.As I mentioned, this has been going on for 10 years and I am constantly inserting small wood shims to stop the vibration.You suggested that I “isolate” the box on the wall by adding a foam pad in between the box and the wall.My wife had a pad of high density ¼” foam that I cut into 4 strips and after I backed out the mounting screws as you suggested, I inserted the foam strips around the sides of the box and then tightened the screws. After all these years of a Chinese water torture all day and all night, the sound is totally gone. I even put my ear to the interior wall just inside where the A/C unit is and all I hear is the compressor. You really saved me (at least my sanity or what’s left of it). Sure wish I would have called you years ago.Dan Clark, Punta Gorda, FLI can't thank you for all your help in the replacement of my Hot Water Recovery pump.

Doing business with you was a pleasure and rest assured that I will pass it along to my anyone in need of your services. The phone calls in "trouble-shooting" my problem, ordering the pump, and then walking me thru the installation procedure.......well you made it surprisingly simple. I'm not sure if I mentioned to you, but this is my third home that I have installed the Aquefier Hot Water Recovery "system" and I would not have a home without one! Having my A/C heat my hot water for FREE, making my A/C run/cool even more efficient, and above all, lowing my electric bill, especially here Florida, it's a "win-win" for me. I've actually been a walking advertisement for this unit ever since my first install. It is simple GREAT! Cliff & Connie, Ocala, FLDear Jim: I recently purchased a heat recovery unit model # R6K-PE-410 that is distributed by your company. unit form a local air conditioner company. After much debate with the air conditioner company, I called you for information as to why the unit was not functioning correctly.

(Your name, phone number and e-mail was on the booklet that came with I want to thank you for your prompt and professional response. When the phone conversations I had with the air conditioner company about the problem of wrong installation didn't solve the problem, you offered to come over to my home and meet with the installers to show them what that did wrong. After they corrected the problem under your supervision, I am proud to say it is functioning as it I want to thank you S-O-O much for your help. It is a wonderful unit and I have hot water all the time and my hot water unit is turned off completely for the summer. I will let you know how much my Duke Energy bill decreases next month. If you know anyone that is hesitant on purchasing this unit, please tell them not to wait. There is much more hot weather ahead in Florida and other states. Why would anyone want to blow all that hot air in the yard when you could heat your water for free. Thanks again Jim, and keep up the good work.