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How to Test Your Central Air Conditioning System
By admin | July 20, 2010
It can happen to any of us. One sunny afternoon when the heat gets increasingly unbearable and you have rushed home to be in comfort of your air conditioner, you suddenly notice that your air conditioner is not working as it should. It is not adjusting the temperature of the room the way it used to. Before you take it to the contractor for inspection you can actually do a bit of testing by yourself to see if everything is alright. This will not only save you quite a few bucks but would also save you time. However, if you do find the problem to be too complicated for you to deal with you should of course call an expert air conditioner contractor to inspect your unit.
To test your central air conditioner, you must have the outside temperature above 60 degree Fahrenheit for a period of two days or 48 hours to be precise. Some manufacturers may even recommend a temperature of 65 degrees. This is because turning on the air conditioner at a temperature lower than 60 degrees might actually damage the compressor of the unit.
Next you turn the regulator of the fan to ‘auto’. The thermostat level should also be adjusted at a temperature below the normal room temperature. It is recommended to set it somewhere around 76 degrees to 78 degrees Fahrenheit. This would make the fan and condensing unit to switch on immediately. However, if there is a preset time delay it would take that time to turn on.
After letting the system run for 8 to 10 minutes so that the temperature in the ductwork is balanced you need to check the temperature at the supply and return registers of the unit. If everything is fine the temperature reading at the supply register would be 14 to 20 degrees cooler than the return ducts.
If the difference in temperature is more than 20 degrees then it would indicate that air is restricted. This can be because of three reasons:
– An unclean filter – Improper ductwork – Problem with the fan as in it is not of proper size or moving too slowly.
If the temperature difference is less than 14 degrees then the possible causes for problems are:
– Loss of refrigerant – Unclean coil – A compressor not working quite up to the mark – A fan that is much larger for the unit – An improper return air system.
Barney Garcia
http://www.articlesbase.com/home-and-family-articles/how-to-test-your-central-air-conditioning-system-65448.html
Topics: Air Conditioning Units | 4 Comments »
March 15th, 2010 at 5:03 am
Please Check my Answer's for my Drug and Alchol test Fl?
1 Stimulants________ the central nervous system.
Speed up or excite *
Help slow
Do nothing to
2 Safe following distance depends upon the speed you are traveling.
True *
False
3 A good scanning habit when approaching an intersection is to monitor roadway conditions.
True *
False
4 Stimulants are ________drugs.
Not
Very safe
Very dangerous *
5 A way to avoid "getting behind the wheel" if you have been drinking is_________.
Stay overnight where you have been drinking
Stay at home
Both options are correct *
6 A common type of injected drug is:
Morphine
Heroine
Both options are correct *
7 If your receive 12 points in 12 months, your license will be suspended for 10 days.
True
False *
8 Impaired drivers are responsible for the deaths of many pedestrians each year.
True *
False
9 It is your ___________ as a driver to have all children properly restrained or secured with a safetybelt.
Responsibility *
Indecision
Choice
10 __________ kills more people than you may realize.
Listening to music
Watching television
Falling asleep behind the wheel *
11 Children riding in the _____ are much less likely to be killed in a crash.
Back *
Middle of the front seat
Front
12 All drivers must yield right of way to emergency vehicles.
True *
False
13 Brakes are a very important safety feature on a motor vehicle.
True *
False
14 You should constantly scan the road ahead of you for possible driving situations.
True *
False
15 A short term effect of alcohol is:
Both options are correct *
Drowsiness
Confusion
16 Suspension means that your license is permanently taken away.
True *
False
17 Teen drivers have the highest crash risk of any age group.
True *
False
18 Tailgating is not an example of good traffic courtesy.
True *
False
19 Insurance companies are not allowed to cancel your insurance due to a suspended license.
True *
False
20 You should check engine coolant when the vehicle is cool.
True
False *
21 The shift from social drinking to problem drinking comes from the need to ____________.
Become a better driver
Find a better job
Find comfort and self-esteem *
22 A good rule for passengers riding in your vehicle is for them to wear seatbelts at all times.
True *
False
23 Elderly people are rarely killed on bicycles.
True
False *
24 If you need to use a cellular phone when driving, you should:
Find a safe place to pull off the road to use the phone *
Drive in a slow lane
Have a friend hold the steering wheel for you
25 Add ________ seconds to the 2 second rule when there is speed over 40 MPH.
2 *
3
1
26 A flashing red light means that you should stop.
True *
False
27 Drivers who run red lights are responsible for _____ crashes each year.
260,000 *
4
200
28 Most people need about seven or eight hours of sleep per night.
True *
False
29 If your vehicle breaks down, you should leave it sitting in traffic.
True
False *
30 The most common misconception is that marijuana is:
Green
Dangerous
Harmless *
31 The best way to avoid being the target of an aggressive driver is to _______________.
Hit someone with your vehicle
Practice traffic courtesy *
Be rude
32 Your parent or guardian must certify that you have had 50 hours of driving experience in order to obtain a standard driver license.
True *
False
33 When approaching a school bus,you should always_________.
Honk your horn
Slow down *
Speed up
34 Safety belts are designed to:
Be played with as a toy
Allow the strongest areas of your body to absorb the forces in a crash*
Be left off the body
35 To steer properly,___________.
Have only one finger on the wheel
Sit upright and keep both hands on the wheel *
Sit in a slouch position
36 A 12-ounce beer contains less alcohol than a 5-ounce glass of wine.
True
False *
37 Large trucks can weigh _______pounds.
10,000
4,000
80,000-100,00 *
38 Beer is the most common drink consumed by people stopped for alcohol impaired driving.
True *
False
39 When you are driving, always watch for ________ from those in other vehicles.
Erratic behaviors *
Bumper stickers
Both options are correct
40 Eating while driving is not a distraction.
True
False *
March 15th, 2010 at 10:05 am
just answer C.
this is a forum for Beer, Wine & Spirits questions & answers
not a place to cheat on a test you are taking
References :
Beer, Wine & Spirits channel.
March 15th, 2010 at 10:07 am
Do your own assignment. It’s not anyone else’s responsibility to complete your work, but yourself.
References :
March 15th, 2010 at 10:09 am
jesus christ
References :