Car Talk – Question and Answer – Live Podcast #276 with Scotty Kilmer

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Throughout summer, the most terrible of things you can experience is the unrelenting scorching heat. The heats simply won't go down but rather appear to increase night and day. You lay awake in the evening attempting to find out where you can get an air conditioning service that deals with weekends, however the temperature levels are expensive for you to concentrate. This short article goes over the importance of employing expert Air Conditioner repair professionals when your air conditioning system malfunctions.

Air Conditioning Installation:

The majority of people select expert cooling services when they wish to install a brand-new Air Conditioning in their office or homes. Though Air Conditioning specialists mainly use setup services this is not service that they use. A couple of other services offered by such service technicians in addition to Air Conditioning installation are repair, replacement and Air Conditioning upkeep services. Because a/c units cost a considerable amount of loan to purchase it is usually advised that home owners with breakdown systems opt to repair rather than replace their systems when they start malfunctioning. Routine maintenance of house cooling systems keeps them from malfunctioning typically and increases their durability.

Air Conditioner Service:

One benefit of going with a professional a/c professional is that such people, companies or providers provide their customer a/c upkeep services which are rather essential for the appropriate operating these devices. In order for an A/C to run both successfully and effectively routine cleansing and upkeep or maintenance is needed. Cooling systems that are not appropriately maintained lose their toughness and have a tendency to malfunction on a regular basis which of course results in extra monetary concerns on homeowners due to the constant repair they need. In order to avoid the monetary burden of needing to pay for AC replacement services it normally suggested by industry experts that you arrange your cooling system for maintenance every 8 months to 12 months.

Access to know-how:

Another advantage of selecting a professional when it comes to A/C repair is that of the know-how they use. A lot of air condition systems set up in houses typically cost a substantial quantity of loan. As such when these important home gadgets malfunction it is very important to obtain somebody who is knowledgeable and has the necessary competence requirement to make the needed repairs. Trying to take on such a task individually as a Do It Yourself task might unfortunately in more cases than not result in more damage than great; sometimes requiring an Air Conditioner owner to invest far more in changing the home appliance instead of fixing it. By selecting expert Air Conditioner repair work service you are able to restrict the quantity of money invested in correcting the malfunction since such professionals are well positioned to identify and correct the accurate problem.

Car Talk – Question and Answer – Live Podcast #276 with Scotty Kilmer

Frequently Asked Questions:

What Small Animal Can Live In A Studio Sized Apartment Which Is Air Condition?
I Am Looking For A Small Animal That Can Keep Me Company While I Am Studying But I Don'T Want A Cat Nor A Dog. I Want Something Small That Is Maximum As Big As A Ferret But I Don'T Want Any Reptiles In The Apartment Cause I Don'T Want To Feed Insects Or Mice. I Have Fishes (Beta) But I Am Looking For Something A Lot More Cuter And Fun Too Play With. And No Insects. I Also Want An Animal Which Can Live In An Air Conditioned Room.

Well ferrets are awesome. Playful like a puppy forever. Believe it or not Rats make good pets too. They love to sit on your shoulder and groom your hair. Sugar gliders are marsupials and look like flying squirrels. They love to be with you and are very interactive. Rabbits and guinea pigs are good too but they aren't as interactive. You could also try birds like zebra finches, parakeets, and cockateils. But they can be loud at times and they like to rip up bedding and usually throw food out of their feeding bowls.

How Do Mice Get Into Your Home Return Air Vent?
For The Past Two Winters, I Have Noticed That Mice Are Nesting In One Of My Return Air Vents. I Don'T Have Central Air Conditioning So I Don'T Know Where The Vent Goes Out? The Mice Can Be Heard In The Basement Up To My 2Nd Floor Bedroom Return Air Vent. Apparently, They Can'T Or Don'T Come Inside The House Because I Have Never Seen Not One Dropping Inside My House And I Have Set Traps But Nothing. How Can I Find Out How They Are Getting In? And Why In This Area? I Have Sealed Up All Noticeable Holes Around The Inside And Outside Of The House And Low And Behold They Come Back To That Same Area. This Puzzles Me To No End, They Are Just In That One Area. There Must Be A Way They Get In From The Outside. My House Is 78 Years Old And I Don'T Even Know Where My Return Air Vents Goes Out To. Help?

In many older homes return, and sometime supply, vents were "panned" which is basically saying that they used the floor joist or wall frames to make paths for the air to travel in.
Because these Pans are interconnected throughout your home, the entry point for the mice can be anywhere.
Today's codes while still allowing panning in certain circumstances, they require the panned bay to be ducted. This not only cuts down on your house guests but also some of the nasties that find the environment in an unlined panned joist a beautiful breeding ground.
Spring time comes around, consider having a professional duct cleaner work on your home. Many, using newer technology can actually send small remote cameras through the system identifying blockages, unwanted openings (Or were you intending on heating the attic with that duct?), and other potential issues.

What Size Central Air-Conditioner Do I Need For My House?
I’M Interested In Getting A Central Air Conditioning System Installed. How Do I Determine What’S The Correct Size Air Conditioner For My Home?

Let the HVAC contractors size it properly for you and guarantee their work. Call 3 companies and let each size, price and explain why they selected that size. Sizing should include performing heat/coooling load calculations. Do not let them use just square footage alone,

Make sure each is licensed, insured and check with thelocal BBB

Which Psychrometric Process Or Process Are Used In Air Conditioning Systems?

In the domestic and industrial air conditioning applications some psychrometric processes have to be performed on the air to change the psychrometric properties of air so as to obtain certain values of temperature and humidity of air within the enclosed space. Some of the common psychrometric processes carried out on air are: sensible heating and cooling of air, humidification and dehumidification of air, mixing of various streams of air, or there may be combinations of the various processes.

Illustrating and analyzing the psychrometric properties and psychrometric processes by using the psychrometric chart is very easy, convenient and time saving. In the next few paragraphs we shall see some of the most commonly employed psychrometric processes in the field of HVAC and how they are represented on the psychrometric chart.

Sensible Cooling of the Air

Cooling of the air is one of the most common psychrometric processes in the air conditioning systems. The basic function of the air-conditioners is to cool the air absorbed from the room or the atmosphere, which is at higher temperatures. The sensible cooling of air is the process in which only the sensible heat of the air is removed so as to reduce its temperature, and there is no change in the moisture content (kg/kg of dry air) of the air. During sensible cooling process the dry bulb (DB) temperature and wet bulb (WB) temperature of the air reduces, while the latent heat of the air, and the dew point (DP) temperature of the air remains constant. There is overall reduction in the enthalpy of the air.

In the ordinary window or the split air conditioner the cooling of air is carried out by passing it over the evaporator coil, also called as the cooling coil. The room air or the atmospheric air passes over this coil carrying the refrigerant at extremely low temperatures, and gets cooled and passes to the space which is to be maintained at the comfort conditions.

In general the sensible cooling process is carried out by passing the air over the coil. In the unitary air conditioners these coils are cooled by the refrigerant passing through them and are called also called evaporator coils. In central air conditioners these coils are cooled by the chilled water, which is chilled by its passage through the evaporator of the large air conditioning system. In certain cases the coil is also cooled by the some gas passing inside it.

The sensible cooling process is represented by a straight horizontal line on the psychrometric chart. The line starts from the initial DB temperature of the air and ends at the final DB temperature of the air extending towards the left side from high temperature to the low temperature (see the figure below). The sensible cooling line is also the constant DP temperature line since the moisture content of the air remains constant. The initial and final points on the psychrometric chart give all the properties of the air.



Sensible Heating of the Air

Sensible heating process is opposite to sensible cooling process. In sensible heating process the temperature of air is increased without changing its moisture content. During this process the sensible heat, DB and WB temperature of the air increases while latent of air, and the DP point temperature of the air remains constant.

Sensible heating of the air is important when the air conditioner is used as the heat pump to heat the air. In the heat pump the air is heated by passing it over the condenser coil or the heating coil that carry the high temperature refrigerant. In some cases the heating of air is also done to suit different industrial and comfort air-conditioning applications where large air conditioning systems are used.

In general the sensible heating process is carried out by passing the air over the heating coil. This coil may be heated by passing the refrigerant, the hot water, the steam or by electric resistance heating coil. The hot water and steam are used for the industrial applications.

Like the sensible cooling, the sensible heating process is also represented by a straight horizontal line on the psychrometric chart. The line starts from the initial DB temperature of air and ends at the final temperature extending towards the right (see the figure). The sensible heating line is also the constant DP temperature line.

Who Replaces Air Conditioning And Coolant Hoses?
I'Ve Been Having Some Problems With My Car. It'S A 2001 Ford Taurus And It'S In Pretty Good Condition Except Lately Its Hoses Have Been Leaking. The Coolant Hose Leaks Really Bad, Also My Air Conditioning Has A Hose That Leaks Freon (Sp?) Faster Than I Can Put It In. Since It'S Nearly Summer Here In Louisiana, I Want To Fix My Ac! So Who Do I Take It To To Have The Hoses Replaced?

take it to your mechanic, or a dealer.

Most anyone can fix coolant hoses (radiator). Air conditioning refrigerant is a HAZARDOUS material, Special equipment need to add/change/dispose of the liquid.

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Car Talk Live Podcast #296: Q&A with Scotty Kilmer
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