Frequently Asked Questions (FAQ) for Wall Air Conditioner

1. It's fancier to use ad-hoc?

Ad hoc is better understood as only applying to this in its English usage. If you create an ad hoc report, for example, you are creating a "one-off" report, a report that you are only going to use in the particular circumstance in which you create it.What your sentence is saying is that, since the number of members of a tuple is unknown as part of its definition, any structure conforming to it must evaluate the contents of the tuple at the time of its creation. That means that it has to be created for that tuple only

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2. What is the best, quiet air conditioning for a bedroom?

I suggest Friedrich WE10D33Friedrich is compared in comparison to other models and brands today one of the best-selling product.Featuring a 24-hour timer, washable antimicrobial filter, insect barrier, and a number of features, this air conditioner is a smart addition to your home. It?s even Energy Star-rated to do its part for the environment. You can install this air conditioner in your wall with it mounting flush with the exterior wall for a neat appearance. A sleeve must be purchased for proper installation and is not included with the unit.Source: Best Wall Air Conditioners 2017

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3. Why is Inside wall near top of our stairs hot to the touch?

Marty's precise. in case you end and picture approximately it, many eating places and different companies have the air coming down from the ceilings. the concern in the time of heating season (no count the place the registers are placed) is stratification. warmth rises so it somewhat is cool on the floor and gradually warmer from the floor upwards. Stratification could be dealt with via continuously circulating the air. You do this via working ceiling followers or via working the furnace blower finished time. Your determination

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4. How should I store my guitars?

Whether it's good for them or not, I've been hanging a few of my guitars on the wall for a few years now, and I haven't noticed any difference in their condition vs. the ones I keep in a case in the closet, other than the normal wear & tear. Of course, YMMV, but I've also made sure that the room they hang in stays a reasonable temperature, and that the places they hang doesn't leave them in direct sunlight, and that probably helps as well.

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5. What is this thing in the picture called in English? closed

I am assuming that the question is about the type of window :An opening window above another fixed window is called a top light or fan light window. See diagram. 'Fanlight', strictly speaking, is a window in the shape of a fan but since they were always in the 'top light' position, usually above a door, the term 'fan light' has extended to mean any top light window.Image taken from Arden Windows.See image 1 for 'top light' or 'fan light'.

Example of Fan Light Window taken from Old English Doors

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6. Where to put air conditioner?

To provide a definitive answer is it a split unit, thru-wall unit or stand alone? Air conditioning units generally consist of two parts. One part compresses the gas/fluid and requires evaporation coils to remove the heat outward, the other is the ex changer wherein the compressed fluid is released causing refrigeration cooling and circulates the internal air over the refrigerated coils. If it is a thru-wall unit, ideal placement should be on cool side (North) at a spot that allows for the straightest (no turbulence) direct capturing the greatest amount of internal air.

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7. Why do air conditioners blow fuses if they're turned off and turned right back on?

The compressor is pushing (compressing) the coolant through the coils and is working at a pretty high pressure. When it is up to speed it handles this pressure just fine, but turning it off and right back on does not allow for the pressure to bleed off and the compressor is unable to start with that high pressure working against it, so the compressor will try to start and pull a lot amps which will pop the breaker or the fuse. During normal starting the compressor builds up pressure gradually and the pressure is low to begin with.

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8. I had new air conditioner put in at my house and water is running down the walls?

The following are a few suggestions of the most common reasons why water leakage occurs : Improperly installed, Drain hole blocked, internal drains blocked. A window air conditioner must be slightly lower at the rear than the front. This allows the water being removed from the room to drain to the back of the machine. A difference of one inch is sufficient. This is always the first thing to check. If installed too low at front the water will flow into the room rather than outside.

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9. What can cause a sudden vibration on a wall air conditioner?

Vibrations inside an air conditioner cannot only cause annoying rattling noises - they can indicate a serious problem with the unit. Once you hear a sudden abnormal vibration, shut off power to the unit and begin looking for the source of the vibration. While the cause could be minor, prompt investigation could save certain components, such as the condenser fan motor, from burning up or breaking. Try Again If same problem then call the air conditioning installation Tucson to fix the problem.What can cause a sudden vibration on a wall air conditioner?

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10. Air conditioners, refridgerators...are hurting me?

Unless there is a leak in one of the refrigeration systems which I doubt if they are all working correctly, the refrigerant does not get out into the air period! Even if it does it is not toxic in low to moderate levels to people. I doubt your allergic reaction is caused by refrigeration or air conditioning, if this were true you could not hardly go anywhere but outside with out trouble, almost every business or building has some form of refrigeration system in it. I would go see a doctor if I were you

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11. Do I need a sleeve for through the wall air conditioner in new construction?

Ultimately, you'll want to consult the manufacturers installation instructions. You may find that some units don't have a case, and rely on the sleeve to protect/cover their internal bits and bobs. Whether or not the unit has a case, installing a sleeve is usually a good idea. The sleeve allows you to insure the opening is sealed properly, before installing the unit. It also allows you to remove old units and install new units, without worrying about sealing the opening

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12. What could cause my in-wall air conditioner to blow 3 power boards?

There is a distinct possibility that another another component of the AC unit has some how gone bad and is overloading or injecting bad signals back into the control board and in turn burning it out.It would take local diagnosis - along with a service schematic of the unit - to be able to isolate the faulty component. But your repeated replacement of the control board pretty much indicates that some other thing as gone wrong with the AC unit.

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13. What air conditioner brands are available in India?

I suggestMidea Arctic KingThis remote controlled, Energy Star Certified 8,000 BTU thru-the-wall Air Conditioner is well-equipped with 4-way air direction and multiple fan and cooling settings designed to provide maximum comfort. The unit cools approximately 350 sq. ft. and has a 24-hour on/off timer affording you the opportunity to customize your cooling schedule.FeaturesPrecise control for optimal temperatureIntuitive, easy-to-use remote controlClimate comfort on demandNo need to power up after power failureRemove build up of residues over timeFresh air from outside to inEco-friendly refrigerantSource: Best Wall Air Conditioners 2017.

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14. How can I re-use a hole in wall for ventilation?

I realize that this is a U.S. reference, but you may be able to find a wall exhaust fan locally similar to this.

You need to find a unit that is intended for exposure to the outdoors. Also you may need a cover in the colder months if the unit you find does not have a self closing louver. The one depicted does.If you use 110 voltage and 60cycles, you may be able to order something like this from the U.S. Otherwise, be sure that it matches your local electric supply.

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15. Water was leaking on to my air conditioner plug and now the plug keeps tripping what can I do?

tilt the air conditioner towards the outside of the house also you may not have the unit ouside enough from the window also a ground fault receptacle will trip if you you change the receptacle instead of the breaker but obviously it is better by far to solve the water problem ...aswell you should have your air conditioner on its own circuit as it is a heavy draw..try sticking a few shims under the air condioner or a strip of one quarter inch or half inch plywood this should achive the slope desired.

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16. If I cool the air inside my home, will that help my main overhead air conditioner to work less hard?

No. Those evaporative/swamp/redneck coolers put more water into the air, and your main AC will have to work harder to remove it (the moisture stores what is called latent heat). Wall AC units are less efficient than central AC units, so they will use more electricity to do the same amount of cooling. To reduce your AC bills, focus your efforts on eliminating air leaks and improving the efficiency of the main unit with maintenance checks (increase airflow by keeping filters clean, make sure outdoor coils are clean, check refrigerant levels, etc).

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17. What is causing cracking and creaking noises in the ceiling and walls?

You're saying that noise occurs when the AC is running. Is it possible that your AC's refrigerant line runs through or above your bedroom ceiling? If improperly installed, it may rub against structure when the line expands/contracts as its temperature changes, creating the noise.It's also possible that a noise could come from air ducts in your ceiling/walls, but from your description the most likely culprit is thermal expansion/contraction of a metal pipe/tube rubbing against wood.

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18. Could a plant grow on a building taller than mount Everest?

A plant needs to pump nutrients from the soil to every part of its "body", so you have a really big problem. You might be interested in Geoffrey West's new book Scale: The Universal Laws of Growth, Innovation, Sustainability and the Pace of Life in Organisms, Cities, Economies, and Companies, which goes into some of the issues. Also check out his TED talk.

Tallness is an obvious advantage (monopolize sunlight), so if evolution hasn't grown a plant that big, it's a strong hint that it is very difficult - borderline impossible.

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19. Wall unit air conditioner filling with water.?

Sure. Find the drain line and unplug it. Dust from the air collects and sometimes can plug the drain line. ALL air conditioning units have a side effect of dehumidifying the air, collecting moisture that condenses out of the air onto the cooling coils, which has to drain somewhere. So, find the drain line and unplug it. It likely is a small tube that simply drains the water to the outside somewhere. The same thing happens with air conditioning units in cars, which is why on a warm day, you see water puddles under parked vehicles

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20. Air Conditioner Refrigerant Lines Surging/Knocking?

Refrigerant pressure will fluctuate dramatically with the outside temperature causing the refrigerant lines to expand and contract. The installer may have ran the lines too tight or strapped the lines to the structure with no buffer or padding between the strap and lines. I think the tapping or knocking you hear is probably the refer lines expanding or contracting, literally scooting across the strap in very small steps. Wall furnaces will make noises like creaking and tapping sounds from the expansion of metal. Good luck, cool#9

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21. Can I add a slave to existing thermostat?

Placing a second parallel thermostat or moving the single thermostat to the colder room will not be an ideal solution for you. The reason being is that the second room will call for more heat and indeed warm up but the master room will get overheated. The proper way to fix this is to re-balance the heat registers (or duct deflectors if they are present) to allow less warm air to enter the master room and proportionally more to enter the second room.

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22. Does anyone know how to change a breaker that keeps tripping?

May be the circuit that your air conditioner is connected to is overloaded. I suggest that you first find out if the breaker trips everytime the air conditioner and other electrical appliances (especially heat-genrerating ones like irons, heat lamps, electric plates, etc) sharing the same circuit are turned on at the same time. After you confirm what the culprits are, you may need to put some of those appliances to a different circuit controlled by a different breaker. Seek help from an electrician if need to

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Adaptability to Outside Environment Make Solar Air Conditioners More Desirable
Adaptability to Outside Environment Make Solar Air Conditioners More Desirable
Have you ever found your conventional air conditioners tending to stop functioning in extreme weather conditions vexing? Well, you can invest in a solar split wall AC which will adapt to outside weather so well that you wont fear the onset of summer anymore. The kind that Savana Solar have boasts of guaranteed 50% faster cooling capacity over all conventional air conditioners in the world, with dual condensers and double and triple evaporators. They have a new patented thermal panel. There is no need to add water as their thermal vacuum system operates exactly the same as a thermal siphon hot water heater. It has a unit self cleaning vacuum inside, which helps keep the filter clean and prevents bacteria and dust from recirculation inside the home or business premises. It does not stop functioning even if the outside temperature has dipped to four degrees. Unlike conventional air conditioners, it runs on the principle that the hotter it is outside the more energy efficient it will get. It works with a special medium and newest refrigerant which is completely environment friendly, rather than Freon which is commonly used in conventional ACs.On the other hand, the portable solar air conditioner has a specially designed dehumidification function which can remove 1.5kg water per hour (with no temperature lowering basically). Thus averts the discomfort caused by cooling and dehumidifying simultaneously. Savana Solars model has intelligent defrosting and cold resistance technology resolving this problem of the outdoor condenser forms a thick layer of cream on the condenser during very cold climatic conditions preventing in lower performance air-conditioning. It provides three levels of protecting system, i. e. dust filtering net with inside vacuum, electrostatic fiber and active carbon absorbing layer which helps remove peculiar smells, disinfect air and filter harmful material
Why Does Water Drop From the Bottom of My Wall Air Conditioner Inside My House?
Yes, it is condensation and part of how air conditioners work. It will rot your wall. The A/C needs to be tilted back and positioned a little better1. How much electricity does a GE wall air conditioner use?That would depend on how many BTU the Air conditioner puts out2. should the vent be open or closed on a wall air conditioner unit?Open if you just want to bring fresh air in. Closed if you are running the unit in cooling mode. It makes the AC work harder by trying to cool the outside air being drawn in.3. How can you put a Wall air conditioner in the Window?Window or though the wall air conditioners used for room cooling consist of three basic parts: Check out these tips...4. how do i find the right in wall air conditioner?Rather than guesgoogle some clearly do, go to a manufactures site. They have calculations you can use based on square feet of the room and appliances in said room5. How can I add a separate thermostat to my wall air conditioner?Sounds like you have a faulty thermostat or the the unit compressor may be shutting off during peak usage and is able to catch up at night when it cools off. If your unit has not been serviced in a while it could be the problem. Dirty outdoor coil would elevate the discharge pressures and put strain on the compressor and cause it to cycle off even though the fan is still running. This could be causing the erratic temperature swings your experiencing. Installing an accessory thermostat could be a waste of time and money. It's usually best to not try to redesign the unit.6. Does the "fan" setting on my in-wall air conditioner use more electricity than a regular fan?I would think they will both use close to the same electricity and if one uses any more, it would not be enough to compare since a smaller motor runs the squirrel cage type fan in the A/C while a regular fan would have to make more rpm's to make the same flow7. Will a regular fan use less electricity than a in wall air conditioner?the fan will definetly be cheaper, I have relatives that only use a fan and their bill is only like $35 or something. But they dont use it 24/78. how do i cut a hole in the wall for an air conditioner to go in?cutting the hole is the easy part. mark out the hole by measuring the unit then transfer the layout to the wall. use a drywall saw on the interior to cut JUST the drywall. now you can see if you have wiring and/or plumbing to reroute. the last thing you want to do is hit a live electrical line or a water pipe with a sawsaz. after you move things around then get out the sawsaz and cut the studs. use scrap 2X4's, cut them to fit in between the stud cavities, put them in flush to the cut drywall and screw through the drywall into the wood. you dont really need to screw or nail in to the studs, this is just to cover the openings its not a header. use a drill and drill a hole in all 4 corners through the siding. then outside use a straight edge and mark out the opening. use a circular saw set to just slightly deeper than the siding is thick. slide the unit in and make sure that you run a bead of clear silicone around the opening to make a good seal. now you have to flash the outside and i recommend using a tube of Black Jack to seal the opening between the A/C unit and the opening. its made for roofing and will remain tacky and be able to expand and contract with the weather9. how to change a filter in a really old ge in wall air conditioner unit?In an old one, you probably can not just order a replacement filter. The thing to do is buy a "cut to size" furnace filter and use the old one as a template10. Regarding "through the wall" air conditioner sleeve rear grille...?No, it can be now not flawed. I work within the seventh circle of hell. The a/c is about at seventy four levels and when it's 98 degrees external with 89% humidity, it's hotter than hell within the office. I sweat like a hog on a daily basis. God forbid I put on whatever that is no longer one hundred% cotton when you consider that i will be depressing all day. I might as a substitute freeze my ya-ya's off and have my nips poking right out of my shirt any day of the week. Are you guys hiring?!
Wall Air Conditioner That Only Requires a 5" Exit Round Exhaust Hole?
Do any of your neighbors have a similar exhaust port? You can benefit from their experience by asking them what they used with it. Your condo association may also have suggestions• Related QuestionsWhat size BTU air conditioner will I need?cord length is consistent with amps which will maximum in all probability be on the information plate, i might desire to wager and supply you the favored yet in certainty, some fashions do purely not persist with the favored, customary------wall air conditioner leaking?It probably the condensation from the cooling coils dripping inside instead of outside (like it should). Make sure the AC is tipped back towards the outside a little bit so the water runs out instead of in------how to change a filter in a really old ge in wall air conditioner unit?the front panel will come forward lift on the bottom and pull out on the top and it will pivot on the bottom exposing the filter clean filter by washing it out and put back in unit------i got a kenmore air conditioner model # 580.76129300. do i have to change a filter on it?All a/c must have their filters changed periodically.Some of the window units have a indicators light on them when they need changing or cleaned.Split units(condenser unit outside) have filters in the return air duct.------Does air conditioning have to go on an outside wall?A window AC obviously has to go in a window to the outside. Also angled slightly downward as water will drip from the bottom of the unit to the ground outside------replacing air conditioner compressor?while you're valuable that everyone the different aspects are in serviceable concern, then confident,. you could replace only the compressor. of course, you will could desire to recharge the gadget with new refrigerant gasoline once you're achieved------how will my window type air conditioning unit perform if the exterior/exhaust part is not on the outside wall?That will adversely affect its operation and cause it to burn out much faster than it would otherwise. The outside part needs to be well ventilated so the hot air can be blown away------How do I clean my wall mounted air conditioner?It sounds like you should start with the routine maintenance. You can check out the ductless ac page at my source. You will find what maintenance needs done and also a troubleshooting guide if you need further assistance.------Fedders AZ7T10W2A Air Conditioners - Problem?I think the compressor is going off on high pressure. A lack of proper venting/air flow will heat the condenser section and shut off the unit. It must be the wall sleeves------Does a dehumidifier perform the same functions as an air conditioner?jose is right but an A/C also dehumidifies because cold air holds less moisture than hot air as the air cools the water condenses hence the water that drips from an A/C unit------What does it mean when water is leaking out of the wall?it could be condesation from your coolant lines or condensation from the unit itself, you need to have some one take a look at it soon, because it well begin to grow black mold------Window air conditioner causing hole in ceiling?Uh oh. Usually this black stuff is Stachybotrys and is toxic. Especially when it dries and is inhaled. Please contact someone experienced in mold removal to get advice on this. It can make you very sick. Good luck------How do I cut vinyl siding for a through-the-wall air conditioner?Did you are trying the Mitsubishi Ductless Air Conditioner?it could particularly bypass by means of partitions in a room. additionally, i advise that in case you go with to have that unit, examine the specs. besides, it has a stable high quality------Can I run my window unit air conditioner in the winter? (live in texas, rarely drops below 32 at night))?You can use room air conditioners year round and as long as you need, that is common in tropical countries and that goes for Texas, But get it serviced at least once a year for efficiency and economy------Should you always leave the air conditioner on?Purchase a programmable Thermostat , follow installation instructions not all that hard , or maybe have a friend who is mechanically inclined a little . This can save you a lot of money------Is there a way to use window air conditioner in a room with no windows?yes you cut a whole in the desired location with a sawsal and then insert air conditioner and seal up the sides making sure to slope the unit so its leang outward for condensation drainage and walla------What settings should my wall/room air conditioner be on?Did you are trying the Mitsubishi Ductless Air Conditioner?it may easily pass by partitions in a room. additionally, i recommend that in case you go with for to have that unit, study the specs. besides, it has a robust high quality------Power Cord through ceiling first to 2nd floor?As previously stated. to do what you have described is a code violation X2. Not only is running an extension cord thru the floor illegal, so is using an extension cord as permanent wiring------What is a good air conditioner that i dont have to put in a window and it will keep me very cool?I would recommend installing a duct-less wall mount air conditioner. You will need to have it professionally installed. The unit is permanent and some models also provide heat if desired. Cheers------how can I cool down an apartment with no ventilation and make the air more breathable?getting a window airconditioner would be one avenue to pursue but also could check into a humidifer or one of those clean air sort of machines they also have a portable air conditoning unit now but the cost is outrageous------Why does water drip when air conditioner turned on?The condensation pipe is probably clogged causing the overflow, rust usually builds inside of the pan that should catch the sweat off the ac coils, they probably never fixed the drain pipe or the ac pan is rusted thru------Air conditioners give you a sore throat?Cool air is usually dryer which can give you a sore throat. Also not a lot of people clean their air conditioners so the dust in it could be irritating your throat------Are there any risks invloved with venting a portable air conditioner into a drop ceiling?It is OK to discharge the condenser air into a drop ceiling providing the air has some where to go. If the air stays in the ceiling the ceiling will get very hot and you will loose your efficiency------How to get rid of bees?citrus heady scent and oranges artwork great at protecting the bees from going back to the hive. look up some extra information on the information superhighway. style in bee hive removing. a team of web sites ought to arise------air conditioner condensation dangerous?it sounds like you have a window unit and if you have condensation accumulating on the outside of the unit then you probably have an air leak make sure its sealed all around and under the unit------How do I cool down a room when I cannot mount a new air conditioner or run a hose out the window?In general infants/toddlers has higher tolerance on cold temperature than grownups. They often sweat eventhough we adults are already under our blankets. We stayed in Singapore, and switching the A/C is a must.------Question about window/wall air conditioners?All window units that I know of run the fan continuously.The thermostat must sense the incoming air,which the sensing bulb is located on the indoor coil.If it shut the fan off it would cycle on frequently and not be accurate.------where is the air conditioner filter on a 1997 ram 2500?I know some models came out with a fresh air passenger compartment filter and it was located on the passenger side under the cowl, if equipped. part of the cowling has to be removed for access------what is wrong with my home air conditioner?Check the drain pan under the unit in the attic. If the primary drain has become blocked, the float switch will kill the unit to prevent water overflow and damage inside your home------Tips for buying window air conditioner?I found this site and hope you will find the information that you've been looking for. This may help you to get answer of your question. Their site is centered around providing low priced or wholesale pricing on AC and heating (HVAC) equipment.------How do I fix my air conditioner vent?That is condensation that has drained off the evaporator coil. What you need to do is call a HVAC tech out there and tell him to plumb the condensate drain outside or into existing DWV (drain/waste/vent) plumbing------Do air conditioners in mobile homes condensate through the wall?if the temperature outside the mobile home is higher than inside, then there might be condensation. if the temperatures are really opposite, like too hot one side and too cold in the other, there might be more condensation------air conditioner mounted on side?If the air conditioner is horizontal in size and the window is vertical, do NOT put the air conditioner in the window sideways no matter what. Doing this would cause damage to the unit, and my void the warranty------Will it be safe for a portable air cond power plug be plugged in to an extension cord from the power socket?just make sure the power strip has its own built in circuit breaker and not just an on-off switch. with its own circuit breaker it will protect you of any overloads before they are dangerous.------would having an air convditioner built into the wall of one of the bedrooms in my house reduce the value of myLook into the units installed in motels and hotels. There are units available that do not protrude far beyond the side of the house and that also solve the condensate problem that I don't believe you have anticipated------Would it be wise to buy a dehumidifier and use it while the Air Conditioner is on?Air conditioners also dehumidify the air to some extent. However, if it is still too humid and you can afford the extra power consumption, you can also use a dehumidifier too. Which is basically a modified air conditioner.------Air conditioner btu rating needed for 1500 sq ft home-need opinions?to top length an AC equipment call a qualified HVAC contractor and characteristic them carry out a warmth/COOLING analysis. which will furnish the coolest length required. employing sq. pictures on my own isn't the magnificent thank you to length.------HELP with AIR CONDITIONERS?ok since you have the square ft of the room take what you ahve to your local home depot or lowes and tell them what you are looking for they will help alot not everyone takes the messurements of there room------My energy bill raises from 400 kw and lower to over 1000 in the summer?You could put a draw fan in the bathroom window and pull cool air in through the other windows at night and leave the air conditioner off until the next day------Air Conditoner for Wall Sleeve?thru the wall or PTAC units are usually used in commercial applications and the sleeves are solid non vented due to the design, window units however do have vented sleeves sometimes. Not quite sure what you are asking------If you increase the output air flow of an air conditioner, will it get colder?The size of the evaporator coil, the size of the compressor and condenser set the capacity of your AC unit. Increases in air flow through the evaporator above the design value will have little or no effect on the degree of cooling------How do I keep my air conditioner from rattling my walls?Any high density foam would help. Like the stuff they use for camping mats. Try Walmart in the camping section. Get one of those high density foam sleeping mats and cut it into squares and layer it under the AC unit------Has anyone purchased a portable air conditioner, if so, do u like it? which one do u recommend?A portable air conditioner must have the body or butt of the machine outside. If the machine is entirely inside the front of the machine will blow cool air while the rear puts out heat so you would be no farther ahead------How can I mitigate low frequency reverb in a bedroom?The lower frequencies have wavelengths that are much longer than the thickness of the wall and any padding. To reflect these sound waves, you can cause an impedance mismatch by increasing the mass at the wall.Can you put a bookcase there?------Best way to put in a14000BTU air conditioner?Hire a professional installer who will take care of all the details and will guarantee his work. Next, buy adequate renter's insurance with enough liability to cover you if something bad happens. An umbrella policy is a very good idea------My air conditioner is leaking out the back, can I fix it?Just like the person above me had said just place a bucket on the ground if the water becomes bothersome. SOmetiems when the humidity is really high they will tend to drip a lot of water------air conditioner fan runs constantly in auto?HVAC Tech.: You might have a bad blower contact switch. Perhaps you should have the problem checked out by a Professional and avoid the extra expense of curing the wrong problem. Good luck!------Can we build a very effective cooling system for house or apartment using solar or wind power?Yes you can construct a Solar portable air cooler. I have constructed this as a final year sem project and I got a good grade for it. Things needed:Construction :Working Of Circuit Diagram :.------What is the best portable air conditioner on the market?the different solutions may well be superb, notwithstanding: devoid of taking the entire factor aside, or breaking it, attempt verify if there ought to not be some blockage preserving the drain hose/pipe from draining. Is the unit making any ice everywhere?... case in point------whats the problem when your wall air conditioner ice,s the entire front condensor up ?Very high humidity causes this and there isn't a lot you can do about it. Atmospheric moisture is freezing on the evaporator, so basically you have to reduce the moisture or increase the temperature------does an air conditioner HAVE to be mounted in a window, and if so, why..?Only the ones designed specificly for such mounting. The cheap ones often are mounted in the windows. Expensive ones often have ducting throught the house and just have to be outside somewhere.------where does the water drainage from in the wall air conditioners go?When they install the wall sleeves they are supposed to be pitched to the outside for drainage but the sleeve itself could be leaking into the wall when it rains if the caulking has failed------My air conditioner is leaking?the water is the humidity that was removed from the inside air .your air conditioner should be leaning out and down so the water drains OUTSIDE, if unit is already oriented properly than ck that the drain is open and not clogged
Replacing a Thru-wall Air Conditioner with a Smaller One?
just put a smaller one in the hole and dress up the gaps. Just buy one first and see how it goes. If its ok with you then go and get another one1. What is the best option for replacing an old, very large, wall air conditioner?I would consider the following option. Get rid of the old AC on the wall and hire a handyman to cover the wall unless you are handy yourself. The old AC is probably a 220volts type of AC around 10,000 to 12,000 BTUs since it covers so much square footage (22'x25'). I would buy a window unit for each room and installed in a window. Buy something like a 5,000 BTU with a 110-120volt for each room. The AC will cost around $175-$200 each or less if you find them on special. If your house has a high ceiling than you will need a little bigger AC with more BTUs but maintain the 110-120volts for electric bill savings. Not only will you save but also control the temp in each room individually. Good Luck!2. Old Kenmore Wall Air Conditioner in My Apartment, Can Landlord change it?They are under no obligation to change it...in fact, if it broke down alltogether they would be under no obligation to fix it or replace it unless it is specifically mentioned in your lease as something that is expected as part of the rent. Usually things like that are considered extra's, bonuses and not necesary so there is no obligation to do anything about it. However, that being said, there is nothing stopping you from asking. The worse case scenario...they say no..they can not jack the rent or kick you out for asking a question3. i need to put a power cord on my wall air conditioner what one do i get?I would remove your old cord and take that to an Appliance Dealer and ask for this same type of cord. Wiring should be of the same Guage (thickness) and of course the plug ends should be the same type4. How can i prevent my in wall air conditioner from overheating?Set your thermostat a little higher, and if the unit has a 'economy' switch of some equivalent, set it there. It may mean your house may not get quite as cool, but it will help the A/C. Always make sure your filters are clean, as well. Papaw5. How do I install an in-wall air conditioner?you will need to make a Large opening...then cut 1 vertical wall stud...then frame it....it would help if when opening the wall you figure the opening to be up against 1 existing vertical stud....patching the area around the a/c will be the difficult part6. Should I replace or repair in-wall air conditioner?Wall Air Conditioner Repair7. Why does central air conditioning do better than a wall air conditioner?What makes central air better than wall units?I'm not sure it is better. There are a lot of reasons one thing might be "better" than another. However, I agree with you that in most folks minds, central air is better. Central air is quieter, and a bit more efficient, although not a lot. It is less visible, which makes it better to some people. It is all controlled from a single thermostat, which also makes it better for some, but not so good for others who like it different temperatures in different rooms. In light of all those positive things for central air, wall units also have other pluses. If you are in a habit of using one room at the time, the wall units are much more economical. If you like it different temperatures in different rooms, wall units are for you. If one of your wall units breaks, the rest of them work just fine and it is just an inconvenience instead of a catastrophe. An assembly of wall units is also probably cheaper initially than a central system, and cheaper to replace one by one when they fail. Don't assume that central air is better for all people or situations. Why does central air conditioning do better than a wall air conditioner?What makes central air better than wall units?
How Can I Prevent My in Wall Air Conditioner From Overheating?
Consider getting a window unit to supplement the cooling. Do not depend on the maintenance guys to give it the outdoor cleaning, indoor evaporator cleaning, refrigerant check that it needs. There are so many items to look at to make a system work the way it should and any ac company you call will not go to an apartment for you because the manager wo not let them on the property to work. You can even buy a used one from the want ads, home depot has a 99 dollar one.1. Should I replace or repair in-wall air conditioner?The key word here is old meaning it a very low EER rating. A new one will run on 1/2 the amps the old ones used. Replace it and save money. Good Luck2. Why does the compressor in my in-wall air conditioner keep turning off?Either the t-stat is satisfied and cycling it on and off to properly maintain the set temperature, or the condenser coils are stopped up, and its overheating and tripping the compressors internal overload temp. switch. The first is a normal condition, and the second is not. You did not say whether it seems to still be cooling. If not, wash the coils. They may appear to be clean, but it draws air in thru the side, and ejects it out the back, hiding the dirt inside3. I just moved into a condo. The unit has an opening for wall air conditioner, the metal cover that goes...?I would call a local ac supplier, not a actual service company but there wholesaler. They could probably get you one. If you call a service company it will end up costing you more. I know because this happened to us4. Does an In-Wall Air Conditioner need cleaning after 12 years of usage?yeah definitely. after a few years, the dust would build up i bet and affect it and use more electricity to run5. How high off the floor should a through the wall air conditioner be installed. I have 8 foot ceilings.?as close to the ceiling as possible6. Is it possible that a very old wall air conditioner could have asbestos inside it?what are YOU doing, opening the ac cover? If I was the apartment mgr I would not TRUST YOU!!!7. Replacing a thru-wall air conditioner with a smaller one?i did this in my house . because the new air conditioner are smaller and put out more air . if you buy one little smaller then the hole, make a frame to put in the hole. then you can make a picture frame on the out side to dress it up you will be ok that way and it will save you a lot of money. handly man at work good luck.8. How do I measure and cut a 2 x 4 wood plank at angles so I could make a box for an in-wall air conditioner?You can use a chop saw or a miter box and a hand saw. If you have not done it, find a friend to help you do it as it can be tricky. You can also measure the size box you need and have Home Depot or Lowe's cut it for a small fee per cut,.9. How do you fix a wall air conditioner unit in your house!?No, it quite is his duty. you have gotten a small restore deductible on your hire, yet it quite is all you would be obligated for if it applies. in spite of the undeniable fact that, it quite is presented which you probably did not do something to wreck the kit (which I doubt you will have executed), wherein case you would be in charge for the restore. If he refuses to repair it and pay for it, not only is he inflicting greater injury to his property that is going to cost him greater to repair interior the long-term, in spite of the undeniable fact that it is likewise turning out to be an untenable residing environment for you and ought to supply you good reason to break your hire and circulate someplace else. you will prefer to analyze with an lawyer or an area tenant's rights team (with a duplicate of your hire) earlier you are taking any action like this, yet i think of this could qualify
How Can I Add a Separate Thermostat to My Wall Air Conditioner?
Sounds like you have a faulty thermostat or the the unit compressor may be shutting off during peak usage and is able to catch up at night when it cools off. If your unit has not been serviced in a while it could be the problem. Dirty outdoor coil would elevate the discharge pressures and put strain on the compressor and cause it to cycle off even though the fan is still running. This could be causing the erratic temperature swings your experiencing. Installing an accessory thermostat could be a waste of time and money. It's usually best to not try to redesign the unit.1. Will a regular fan use less electricity than a in wall air conditioner?yes, the fan motor draws very little electricity compared to the motor compressor of an ac unit2. How high off the floor should a through the wall air conditioner be installed. I have 8 foot ceilings.?I would first select the unit. The control panel will help you determine how high to locate the unit. Todays window unit have very powerful fans to push cold air and suck in return air so you do not need to think you have to put them up high in the wall. Think about security. If you live in an area where your new ac unit would be an invitation for a thief, I would put it up high in the wall, this also allows you to not worry about banging your head on it if you are outside doing garden or lawn work around the unit. Check the length of the cord on the new unit so you can plan for an outlet, and check the plug configuration so you can get the correct receptable configuration for this unit. If you install a header put the bottom of your header at a standard height which is 6'101/2" or 82-1/2" from the finished floor level. If controls are mounted high on the front of the unit, then install it lower so controls are easily read and used.Also allow about 1/2" extra when you measure the cabinet of the window unit on height and width. This will let you slide the cabinet housing into your new hole easily. You can then use 100% clear silicone to fill up any small gaps around the outside of the cabinet. Good Luck3. What could cause my in-wall air conditioner to blow 3 power boards?I have not worked on this particular unit, but here is an educated guess:I notice from the parts diagram that this unit is equipped with a 5KV DC power supply (Sears Kenmore part 6609A10003Q). If that has failed in such a way that it kicks high voltage back to the main power board, then that could cause repeated failures of the main board. It is much less likely that the compressor is hard starting for some other reason and if that is the case then the unit would not be economically repairable. Check the value of the capacitor with a capacitance meter. If the capacitor is less than 90% of the labeled value, then it must be replaced. To narrow this down any further would require some on-site trouble shooting as Michael Karas stated. I am not usually a fan of the "parts-changer" approach to repair, but since the whole set of parts (capacitor, main power board, and high voltage supply) would be roughly $180 based on what I see on the internet, you may opt to replace all these parts together to save time and frustration. Also, the "searspartsdirect.com" website has information that shows how often the site sells each of these parts. They commonly sell the capacitor, main power board, and much less frequently the high voltage supply.Good luck with your repair whatever you decide4. Creative ways to hide an in-the-wall air conditioner in the winter?Hide Wall Air Conditioner5. how do i cut a hole in the wall for an air conditioner to go in?cutting the hole is the easy part. mark out the hole by measuring the unit then transfer the layout to the wall. use a drywall saw on the interior to cut JUST the drywall. now you can see if you have wiring and/or plumbing to reroute. the last thing you want to do is hit a live electrical line or a water pipe with a sawsaz. after you move things around then get out the sawsaz and cut the studs. use scrap 2X4's, cut them to fit in between the stud cavities, put them in flush to the cut drywall and screw through the drywall into the wood. you dont really need to screw or nail in to the studs, this is just to cover the openings its not a header. use a drill and drill a hole in all 4 corners through the siding. then outside use a straight edge and mark out the opening. use a circular saw set to just slightly deeper than the siding is thick. slide the unit in and make sure that you run a bead of clear silicone around the opening to make a good seal. now you have to flash the outside and i recommend using a tube of Black Jack to seal the opening between the A/C unit and the opening. its made for roofing and will remain tacky and be able to expand and contract with the weather
Wall Unit Air Conditioners
Wall Unit Air Conditioners
Wall unit air conditioner are one of the more popular ones used in apartments and homes and often need repair by a qualified technician. An window air conditioner works on the same principles as the larger units in removing hot air from the room while adding cool air to achieve an ambient temperature for comfort during hot months. The main differences are the size and components which are smaller then those of the larger units and are usually plugged in instead of being connected to a main power source such as an electrical panel with a breaker box of its own. There are several pointers that are important to keep in mind when you are getting your window air conditioner out and ready for the summer season. The first one is to inspect it to see if you need to perform any cleaning of vents or other maintenance on it before testing it to see if it is ready to be used. Be certain to unplug or otherwise disconnect the power before you work on it. A properly working air conditioner will be clean and in good repair with no bugs or debris inside. There are some of the different things to check for heating repair, beginning with the fan and motor to see if they are clean and working. If they need to be tightened or lubricated do so now. Check to see if the thermostat is operating correctly.Once you have determined that these are working, place the air conditioner in the window, being certain to hook up a drain and keep the seal tight against the window. There should be no gaps or cracks in the seal as this will defeat the purpose of the air conditioner. If the air conditioner refuses to work correctly and you have checked the simple items, call a qualified heating repair person to check out the refrigerant. If it needs to be replaced, he or she is qualified to do so safely.If an air conditioner is badly damaged it may be best to purchase a new one instead of repairing the old one. Many places will give you an estimate of how much you will need to spend in repairs then you can do some research to see how much a new or slightly used window air conditioner will cost. Most of the time it is more economically feasible to fix the old one instead of buying an new model and paying for the installation or doing it yourself if you are handy with power tools. If you do have to purchase a new air conditioner be sure to recycle the old one properly so that the coolant will not harm the ecosystem. [ orlandoairconditioners].
Back to School Help!Read Details! Get 10Points For1 with Best Outfit!?
Back to School Help!Read Details! Get 10Points For1 with Best Outfit!?
go to www.polyvore.com and type in first ay of school and people make collages of what to wear and on the side it tell you wear you can buy it i love that website go check it out• Related QuestionsHow do you like my first chapter?It sounds just like Twilight only difference is the chick is the vamp. I bet next chapter will feature a boy who has an 'aura' that makes her want to suck his blood or something equally ridiculous.Your originality staggers me.------Is this an incredibly stupid idea?technicality you shouldn't get in trouble for that... but i have gotten in trouble for similar things when i was in school... they called it a distraction to other students (i was doing the goth thing before it was popular).------What to wear now in Miami?TRAVEL LIGHT AND ALWAYS BRING A CHANGE OF CLOTHES FOR A NIGHT ON THE TOWN!! tHE BEACH IS THE NECESSARY BIKINI REGARDLESS, AND THE NIGHT LIFE IS NOT MUCH MORE IF YOUR LOOKIN FOR A GREAT TIME...........iT IS MIAMI!!!!!------Should I wear a dress or a skirt on Valentine's Day?It depends upon the weather for me really. Within the fall I like to wear longer skirts and in the wintertime I wear longer ones with my boots, however in the spring and summer I prefer to wear short summer dresses------am looking for a wedding gown that i saw in a magazine years ago, fell in love with it. now cant find it help?Have you gone to a bridal shop yet? There may be some that have an archive of sorts of wedding gowns (photos, magazines, etc) that you may be able to find something close if not 'the one'.Good luck & Congrats------Can anyone read about these dreams for me please?Well, i think you like this guy. But you may be scared and unsure of what your friends think of it. try talking to your friends :)help me? thanks ------how do i look cute with my dress code?oh gosh...wow, that must be tough but one word ACCESSORIES! i now leave you to think...try: hope you find something you like :)------Ladies what is a good outfit for fall weather?girl jeans--ripped.((makes guys look so effin sexy))brown and red colors.((to make you blend in with the season))and some nice high heels that are so god damm gourgous it makes girls jeloushahahhope this helpssexy bioch------How is my intro for my story?i don't think you should say "all the more scary looking" in paragraph # 2. and in paragraph # 3 maybe u should say the doll looked most appauling afyter seeing the red yarn stiched over the mouth. Other than that AWESOME!------How would someone with this personality look/dress like?So if she is wealthy and artistic, probably like beige trousers with a navy blue jacket and white top. OR mayeb this outfit jpg.------This is the first half of chapter 1 in my book I'm writing. Can anyone read it and tell me how it is?omfg that is such a good story it makes me think of the twilight saga i love how you give so many details and describe his face i love the names and you need to keep on writing keep me updated------What shall i do about my daughter starting middle school???!?Woah, when I was that age I went to bed at 9:00 and read for an hour. I would say 8:30 - 10:00. Take her on a shopping spree at Justice. They have 40% off sales and cute clothes too. No more movies and chocolate------does anybody want to make me an outfit?Age: 15 Gender: woman form: in maximum circumstances Skater with incredibly Like, Prep colors: Any shade of green, Black, pink, Blue, pink clothing: T-Shirts, Hoodies, skinny denims shops: PacSun, Delias, heat concern count number, Abercrombie shoes: communicate, autos upload-ons: Necklaces, rings------Back to school clothes shopping list!!?I like girls in jeans. It makes them look more home town like and it doesn't look like they try too much but if you are looking to get this men attention, this might not be what you would like------beauty tips for young teen plz?were just the same but im tall not short lolthis is what goes on menavy blue, tan , dark greensskinny jeansflats or kitten heelst-shirts on long vestslongs coats that elongats your figuehope this helps------shorts and a band-aid, or should i cover it up.?Shorts Shorts Shorts.Oh god Please Do Not Wear A Long Sleeve ShirtUnder A Spaghetti Strap Dress.Just Wear Shorts and Everything Will Be Fine,I Mean If You Have Your Ankle Brace,Then Why Does A Band Aid Matter.------Can i wear a long sleeves dress to prom?Hello:Yeah go for it. but if you'd like to be in style try making one out of clean unused plastic garbage/trash/bin bags. That material is in style these days. I hope I helped, if not I'm sorry.------Can i just wear a t-shirt and pants for ice skating and not a long sleeve or with jacket?well it depends if your a good skater or not ....if its your first time ... wear jeans ... it don't hurt as much when you fall over ... and also wear a jacketthe temperature is normally 0-3 degrees in indoor rinks------Winter mommies...what type of outfit?i live in michigan. so it may be a little different. plus my son was born in march. but he went home in a university of michigan sleeper. we had a huge snow storm the day my son was born too------fashion/dress for teen girls in boston?Boston gets very cold in the fall/winter so make sure you pack a lot of warm clothes such as jackets, sweatshirts/pants, jeans, long sleeves, etc...In September, you could probably wear shorts if it's early in the month------Cute Ways To Dress For School?This Site Might Help You.RE:Cute Ways To Dress For School?I really like blue jeans and layering shirts , what are some things i can use as comfy assecories and some cute casual things to do with my hair THANKS------At a traditional Catholic wedding w/o communion at 7pm, do I have to wear a long dress??I like girls in jeans. It makes them look more home town like and it generally does not look like they try too hard but if you are looking to get this men attention, this might not be what you want------I think one of my students is being neglected/abused?well...don't you have an obligation to report anything out of the ordinary?? I would talk to the guidance counselor at your school and see what the next approach would be...they are better equipped for situations like yours. good luck------I'm fashionably challenged please help?well, 10 things that a teenage girl must have in her wardrobe are1) a little black dress2) a trench coat3) heels4) neutral coloured flats5) neutral coloured handbag6) a cardigan7) a blazer8) a day dress9) good pair of jeans10) an all occasions top------What is your school's dress code?bottoms, below fingertips3finger sleeveswe are allowed to wear any type of shoes, including flipflopspajamas are not a problem, (besides by style)those saggy type hats are acceptable, but not like sports capsheadbands everyone wears themhoodsno------Which of these dresses do you like the most?hey, i like the first one which is pink. It will really suit your age. If you changed the color to Black would also be nice. I have noticed that all of the dresses are short. Yet they are really pretty!------Anyone else have a daughter/s like this?Well u cant get her all dresses because school starts in the fall which means winter is right around the corner and you just said that she'll wear pants wen its cold so yes get her some pants as well :)------Why do females athletes wear tiny clothing and males dont?Sad to say but I think they want to make a fashion statement. Who knows maybe it's an endorsement for the clothing and so they get money for it. You are right others do just fine and even win some!.------Do women care how a man dresses or is that only shallow immature girls who do?Clothes do matter to me, because they tell you a lot about someone.I just know that I'm going to probably get along better with a guy who has really casual style and dresses for comfort and function rather than fashion.------What is the Disneyland dress code you must have to work there?I really like little skirts and the real way i fix it being brief is leggings and coloured tights. Not the methods with holes however the ones that virtually look like leggings but are obviously tights as a result of material------15 year old girl always comes to class with injuries?Yes, because if there is an abusive parent, someone needs to intervene. Same case if this student's injuries were self-inflicted, which would indicate depression.Unless she secretly fights criminals in her free time and picked up injuries from there.------what can i wear over or under this dress to be warm at a New York evening Wedding? Shoes - Or if you don't like them look at the rest of the shoes on the site.------What kind of hairstyle will look nice with this dress?Angel,it incredibly is a quite gown,yet as a guy,i think of somewhat like the type interior the image,it exhibits the gown and your self greater powerful,in case you spot my factor,so have an astounding time to------Why am I the only one to dress for the cold appropriately at school?I asked myself this same question when I moved to CT. In the winter it gets cold. However, I see many people in shorts and a zipped or pullover sweater. No lie, I even seen this one girl in flip flops.------Anyone with a sense of fashion... please help?I have a good look Somethign like that.------Wearing A Cherry Red Dress To A Wedding?I like females in jeans. It makes them look more city like and it generally does not look like they are trying too hard but if you're trying to get this guys attention, this may well not be what you would like------What would you call my style???? :)?It's really cute and laid back. I think it's more of a girly style with a slight edge.Also, if you want to add details, you can. It's under the edit link on your question or something.------I need a new wardrobe for fall I'm 23. I want advice on what basic essentials I should get to mix and makeGet classic clothes that don't go out of style, and accessorize. The accessories can change with time and you can wear the same clothes as a base. You keep up with fashion trends this way, and save money too.------Where can I find a sweater dress for a reasonable price?urban planet, urban outfitters, costa blanca....those are the only ones i can think of, and i dont know if you have one near you or not.also, a good suggestion, thrift stores! cheap, and you never know what youll find:)------Fall wardrobe for school aged children?my daughter wears uniforms, so i replace them as needed. i never went heavy into shopping as they had plenty of clothes from the summer to last a few months into the school year. i replaced clothes as need then, too------I'm 15 and going to a Georgia wedding in November. What should I wear?!?This is a pretty dress, it's short so not too dressy, but still elegant. Forever 21 has lots of cute dresses...and cheap! ------Why do people think that western riders are pur redneck hillbillies that don't care about their horse?Same reason people think english riders are stuck up snobs that wear their jods so tight so the sticks don't fall out of their butts. Ignorance and bigotry.There are amazing riders of both disciplines. And total jerks in both.------Survey: What is your style? (GIRLS)?1. jeggins and pumps and top and cardigan2. demin skirt and tank top (if its actually hot)3. jeans/jeggins or skirt with tights, uggs and hoodie4. jeggins and hoodie, pumps or uggs5. hollister, river island, primark..random ones6. pink7. down and straightened------What do you think? I'll answer yours if you answer mine. A little bit long, but please help. I'm confused!?It does sound like he likes you, but he may be shy about it or unsure of what to do. You may need to make the first move if you really want something to happen between the two of you------for grae 8 grad i have a dress its like not straps or tube tops its full length and full sleeves but all the?Psh no,it sounds like there trying to be too grown up and to slut-like.As long as your dress is pretty and is not covering your body from the top pf your head to the floor, u should be fine.------Have no idea what to wear on first day?!? would work well :) I suggest lose fitting but not baggy shirt with shorts or boyfriend jeans :P------what is this fall's fashion?cuffed high boots, skinny jeans, and stripped long sleeve sweaters. Thick belts around the waist with a long white shirt and black leggings, kimono styke dresses and peep toe shoes... Try looking at this months issues of Lucky fashion magazine and glamour.
Design Scheme of Multi-channel Voltage Measurement Based on Stm32
Design Scheme of Multi-channel Voltage Measurement Based on Stm32
This design proposes a design scheme of multi-channel voltage measurement based on STM32 chip, and the measurement range is between 0-10V. The built-in A / D of STM32 samples the multi-channel voltage values to obtain the corresponding digital quantity. Then the corresponding analog voltage value is obtained according to the proportional relationship between digital quantity and analog quantity, which is displayed by TFTLCD display equipment, and the multi-channel collected data is stored in SD card.1. IntroductionIn recent years, data acquisition and its application have attracted more and more attention, and data acquisition system has developed rapidly. It can be widely used in various fields.Data acquisition technology is one of the important branches of information science. Data acquisition is also a process of obtaining object information from one or more signals. Data acquisition is an important link in industrial control systems. It is usually realized by some single chip microcomputer systems with relatively independent functions. As an indispensable part of the measurement and control system, the performance characteristics of data acquisition directly affect the whole system.Voltage measurement is the most universal. It is of great significance to study and design methods and instruments to improve voltage measurement accuracy. In the design of voltage measurement, single chip microcomputer as controller is the core of the whole design. In addition, there must be an analog-to-digital converter (ADC) in the design. ADC is used to directly collect analog voltage and convert analog signal into digital signal. It directly affects the accuracy and speed of data acquisition.2. System overviewThe microcontroller of this design adopts STM32 single chip microcomputer.STM32 Series MCU is designed based on the Cortex-M3 core of arm company. Its clock frequency reaches 72mhz. It is a high-performance product among similar products. It has the advantages of high performance, low cost and low power consumption. It is a good choice in embedded application design. The A / D converter in the design adopts STM32 built-in ADC. STM32 ADC is a 12 bit successive approximation analog-to-digital converter.It has up to 18 channels and can measure 16 external and 2 internal signal sources. The A / D conversion of each channel can be performed in single, continuous, scanning or intermittent mode. The conversion results can be stored in the 16 bit data register in left or right alignment. The maximum input clock can reach 14mhzThis design can measure the voltage value of 8 channels, the measurement range is 0-10V, and the display error is ± 0.001V. LCD displays the voltage value and waveform in real time, and microSD card synchronously stores the data. The system principle block diagram is shown in Figure 1.Design scheme of multi-channel voltage measurement based on stm323.3 LCD control circuitThe LCD used in this design is 2.4 inches, 320 & times; 240 resolution. The LCD module is controlled by the FSMC interface of STM32.FSMC (flexible static memory controller) can be changed into static storage controller. It is a unique storage control mechanism of STM32 series high storage density microcontroller with internal integration of flash of more than 256Kb and suffixes Xc, XD and Xe. By setting the special function register, FSMC can send corresponding data / address / control signal types according to different external memory types to match the speed of the signal, so that STM32 series microcontrollers can not only apply various external static memories of different types and speeds, Moreover, it can expand a variety of different types of static memory without adding external devices, so as to meet the comprehensive requirements of system design for storage capacity, product volume and cost.In STM32, one end of FSMC is connected to core Cortex-M3 through internal high-speed bus AHB, and the other end is an external bus for extended memory. After the access signal of the kernel to the external memory is sent to the AHB bus, it is converted into a signal conforming to the communication protocol of the external memory through the FSMC and sent to the corresponding pin of the external memory to realize the data interaction between the kernel and the external memory. FSMC acts as a bridge, which can not only convert the signal type, but also adjust the signal width and timing, so as to shield the differences of different storage types and make them no difference to the kernel.FSMC can connect devices such as nor / PSRAM / NAND / PC card, and has FSMC_ A [25:0] has 26 address buses and FSMC [15:0] has 16 data buses. In addition, the extended storage space of FSMC is divided into 8 blocks. Select the block of the operation through the address line. In this way, the LCD will operate as a memory with one address space.3.4 SD card drive circuitThe SD card used in this design is microSD, also known as TF card. MicroSD card is a very small flash memory card, which is mainly used in mobile phones. However, due to its small volume and the continuous improvement of storage capacity, it has been used in GPS devices, portable music players, digital cameras and some flash memory disks. The pin diagram of microSD card is shown in Figure 9.MicroSD card, like SD card, has SPI and SDIO operation buses. Compared with SDIO bus, SPI bus has simple interface, but its speed is slow. We use SDIO mode.MicroSD card has 4 data lines in SDIO mode.In fact, microSD has 1-wire mode and 4-wire mode in SDIO mode, that is, 1 or 4 data lines are used respectively. Of course, the speed of 4-wire mode is faster than that of 1-wire mode, but the operation is more complex. The 4-wire mode of SDIO is used in this design. The hardware connection diagram of microSD card is shown in Figure 3.STM32 MCU Chinese official websiteSTMicroelectronics / St / STM
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