Heating Ventilating and Air Conditioning
Heating, ventilating and air conditioning (HVAC) refers to a system used in designing automotive or indoor environmental comfort. It uses ventilation air ducts to provide cooled or heated air to an automobile or a building through outlet vents.
Total questions 25600
ID1645196052
wrote the first answer to Can mosquitoes enter through air conditioning units 35 minutes ago
ID1817714123
wrote the first answer to What is the cost to install or replace a new air conditioner unit 27 May 2012 00:15
ID1290358699
added What size air conditioner unit is needed for an 870 sq ft house to Heating Ventilating and Air Conditioning 26 May 2012 23:36
Peterc14 (supervisor) [1210]
added 2400 sq ft househow many btu or ton od ac would you need to Heating Ventilating and Air Conditioning 26 May 2012 21:28
No because water heaters have a safety valves and when the pilot light goes out the safety valve shuts off the gas
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Most of the highest SEER units are 2 stage units with more parts and more sophistcated controls and therefore more to go wrong....
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In the owners manual there should be a preventative maintanance guide. If not, call the store you bought it from and speak to a...
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TWO DEGREES
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Is there a flame in the furnace. Precisely where is this air coming from and how strong is it?
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AnswerBlend door on climate control not working properly AnswerBlend door on climate control not working...
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Yes, some of the low end brands are made without a low pressure safety switch and will allow the unit to run until the compressor...
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sounds good. ground loops work and there are sites on the web showing how to and such. > I wanted to put a car radiator in a...
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cheaper to turn it on and off. it doesn't work any harder cooling down a hot room than it does maintaining a cool room so it will...
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blue
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The median expected salary for a typical HVAC Mechanic I in the United States is $36,829. More info can be found...
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The sun is a mass, Of incandescent gas, A gigantic nuclear furnace, Where hydrogen is built Into Helium, At a temperature of...
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increase as the minute ventilation is the amount of carbon dioxide
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Yes
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Yes that is fine. If you are worried about the bills the best thing to do is to turn the ac down not off when you leave and then...
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Hi, You can use a infrared imager and view through it to see where your walls are warmer and also you can use a lazer digital...
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You could catch it with a normal snap trap that kills mice. Or, if you prefer not to kill the mouse, but just to remove it, you...
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no. It is very harsh. fire.
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Find the rating plate on the unit. It should give you the amp loading. Multiply this by voltage ie; 240v x 10amps (for example) =...
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The refrigerant which was in the form of gas before entering the condenser, condenses (converts to liquid refrigerant) as a...
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depends on room size
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The filter may be too dirty and blocking air flow. It should be checked for cleanliness once a month. Also, there could be a...
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Vents should be situated near windows. Windows that are north or west facing should get a vent before a south or east facing...
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Check to see that you are getting voltage to the motor. You must check for both high and low voltage. The low voltage for...
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The idea is to insulate to keep air and it's moisture content away from the metal pipes. A double faced insulation with foil on...
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Put the w wire back to where you got it. Now take a volt meter and determine if you have power between R and the common...
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55 degrees to 60 degrees
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Hi, The wiring diagram is no problem but you didn't say what type unit or model number? Are we talking heat pump, split system,...
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An air handler, or air handling unit (often abbreviated to AHU), is a device used to condition and circulate air as part of a...
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Usually this is loose vent flaps being blown open and closed by the wind. With the fan switched off take a look at the vent from...
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Use the fule type that is most convient to you. Some people don't have natural gas service so they opt for LP, or due to the cost...
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Is the coolant full? Sounds like the heater core is plugged up try flushing your cooling system this may help if not the heater...
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sounds like just a blown fuse. get you owners manaual out and find the listings for the fuses.
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It would take 30 min. average time to add this charge to the system.
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in an upstairs apartment you get attic heat. i would want to vent air near the ceiling out two of the windows which means...
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Check the fuses. Depending on the vehicle, the vacuum hose that manuevers the hot/cold flap could be kinked(you can simply hear...
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If you are talking about the larger of the 2 copper lines, the problem could be that the unit is low on refrigerant. Check...
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You probably have an electronic air cleaner. That's a GOOD thing. The electronic air cleaners do a remarkable job of removing...
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The answer to this question is dependent upon several factors. What is the indoor temp, outdoor temp, indoor humidity,...
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Assuming you mean a natural gas or LPG heater, usually there is a button that you have to push in to light the pilot. Turn the...
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AnswerAdiabatic cooling happens as air mass expands with increasing elevation (because density of gases decreases farther into...
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No, it is not safe to burn. It is toxic.
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IT wouldn't do much good. Air conditioners work by MOVING heat from one side to the other. When a window unit is running the heat...
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in a typical residential split system, the condenser fan is cooling the compressor so i wouldn't expect the same useful life from...
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This is an easy question to answer if you think about thermal-mass. A full freezer full of frozen food (or gallon jugs of frozen...
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My daughter had this problem and found that someone had put "screens" in the vents and they were all blocked up. She removed the...
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In some ac systems the blowers wont come on if only a slight tempture change is needed, or ther could be a problem in the wiring...
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If the unit is a heat pump, and the fan switch is set to ON, the unit compressor will cycle to maintain room temperature. Thus,...
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So I take it you mean setting the AC on a table or chair or flat on the floor? The only trouble is the condensation the AC...
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the answer is 1902 by W.H. Carrier
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Hi, The answer is ,,,, drum role please,,,,, YES!!!!!,,,,, there are in fact conditions that can develope within your dryer...
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Yes, and there are false fireplaces made that use Sterno type fuels. Not much in the way of heat, but used for "mood" fires.
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Take it back to the dealer. The AC drain is Blocked OR the Heater Core is Leaking.
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Click on the link to your right for the answer.
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Freon is a brand name now commonly used in the industry for most refrigerants (as the brand Kleenex is commonly used for all...
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If you mean that the system continues to run even when it is turned off, it could be that the switch has welded itself in the...
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You have to get it recharged. you have no freeon left which makes the cold air
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A rotary compressor is like a car engine, with pistons, rods, sleeves, valves, etc. A screw compressor has two screw type...
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turn off power to furnace and remove the bottom door to the blower compartment,the filter should be on the right side of the...
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If your window unit is low on freon, the unit will not cool sufficiently or blast out warm air. To find out what kind of gas is...
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if it,s viberating a lot then you may have a bent fan blade, other wise they will viberate any way, [compressor cause,s it]
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well, since its electric it might have had a fuse because mey be the remote cell have got a weak power in the battery try new...
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capacitor on the condencer unit nothin will work
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COULD BE A FAN CYCLING CONTROL OR UNITS LOW ON GAS AND ITS SHORT CYCLING
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There is an airflow restriction across the evaporator, or no airlow at all. This coil could need cleaning, or your fan motor...
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it is low on freon go to a local shop and have them check it you may have a leak or just low.
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It is freezing up. We find this problem occurs particularly when it cools off somewhat outside. Turn your a/c temperature up,...
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your central air need re-gassing It means that you are probably low on refrigerant.
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Well, if your windows are thin and get cold enough, the moist, humid air outside will condense on the surface of the windows,...
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Your AC would tend to lose some of its cooling capacity as it would not have significant air changes on the portion of the house...
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HVAC TECHNICIAN Salary: $17.93 hourly, $37,290 annually HVAC (heating, ventilation, and air conditioning) technicians install,...
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You are out of refrigerant.
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The only way to accurately determine the proper size air conditioner is to perform a load calculation. This is a process that...
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Yes. It is needed to dehumidify the air. Otherwise you can't clear the windows with the defroster very well.
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Schulyer Wheeler invented the electric fan in 1886. It was the principal method of home cooling until Willis Haviland Carrier...
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Sounds like you have a bad zone valve or zone pump. There is either a pump, and the zones in the house have zone valves, or each...
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Tempstar and Carrier are leaders and are the same company; Tempstar is less expensive and very nearly the same in features and...
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the arrow points in the direction of air flow.
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for a given air conditioner: the faster the condenser (outdoor) fan the lower the suction pressure. the faster the...
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You do not need to pump the system down just to clean the coil unless you are planning to remove the coil completely from the...
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The answer is quite simple, your duct work is not insulated somewhere. What is happening is the really cold air is blowing...
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More than likely. Ensure the outdoor unit is running and that the compressor is running. Also check your filter.
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It wasn't the humidity.
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You don't say where this fan is - it could be in a wall vent as an extractor fan or in an air conditioner unit or in an electric...
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the orifice for natural gas is bigger but you must know the btu of the unit to determine orifice size.heres a link to...
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what type of "HEATING OIL" #2 #4 #6 (Bunker C )
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If you mean where can you find it, look on the inside of one of the cabinet covers or the control box cover of the furnace.
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When you cool matter, it freezes. Freezing something doesn't always mean that it's going to be cold. En-fact, all solids are...
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In a word, no. This area has to remain relatively free of obstruction so air can flow around your condenser coil. Restricting...
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Not necessarily. I would caution you to watch the Relative Humidity in the Home. Depending on EACH system, the amount of moisture...
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Air compressor for what purpose?
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Most residential HVAC systems do not use water, at all.
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cfm stands for cubic feet per minute - this is a term that describes the amount of air flow in duct work - it takes approximately...
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Don't know of such an item. You might consider dehumidifiers which expell their heat to the exterior. the lower mosture level...
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1. Check that the condensate drain is not blocked. 2. If the unit is running short cycles it will not remove humidity as well....
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Condensate drain is clogged. unclog it or call a plummer
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Besides having a fireplace insert with blower installed. There is very little you can do to help a wood burning fireplace be an...
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