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Stand alone AC blows cool air but does not cool the room

I just bought an small medical suite. One large room does not get enough AC from the cental system and a Stand Alone AC unit was there. The unit blows cool air, but the room is still way too hot. The exit hose goes out of the building through a vent, which is clear. Hot air is being blown out the vent. I have not found a tank to collect water. Is there one? help please.

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The ACP 1400 H in the picture uses evaporative technology, it drips the water across the hot coils on the end that exhausts to the outside, and needs no tank. More about this product here

Posted on Mar 25, 2009

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Send tank capacity.model mail me

Posted on Mar 17, 2008


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Cool air when running; warm air when compressor is off.

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How large a space are you hoping to cool? One room? One LARGE room? One SMALL room? One floor of a two-story house? A whole four-story house?

What's your climate like where you live? Very hot, dry, year-round? Cool most of the year but two weeks of hot during the summer? Just a little too warm in summer? Blazing hot all summer, including nighttime?

How's the insulation in the building you want to cool? Is it a plain steel building with no insulation? Is it a trailer? Is it a frame house with 4" walls and R13 fiberglass insulation? An old frame house with no insulation? An adobe building? A timberframe house with 8" of polyisocyanurate foam insulation?

All these are important to know when you select an air conditioner.

For most of the USA, assuming a frame house with 4" of fiberglass insulation, a 10,000BTU air conditioner will cool one large room or two small rooms pretty well, or a 5,000BTU AC will do one medium-sized room. Different places, and different house designs, and different types & amounts of insulation, will all have a profound effect on how much AC you need/want.

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Threr are suppose to be two sounds comming from the window unit. One, the fan sound and the compressor sounds, (this compresses the refrigerants aove room temperatures (around 240*) & send it to the back coils and remove it to room temperatures and send it to the front coils which if enough freon, it will cool to at least 40*. Turn the thermostat all the way up or down while its off and see if you hear a clicking noise which tells you the thermostat is working which that what calls for cool. If it started loosing cools little by little, then you have a leak, and leaked all the freon out! If it stopped cooling all of once, then your compressor is not kicking in.

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We bought a 8000btu air cond and used it last summer. It is in a room 16X20. It has never seemed to blow cold enough air and will not keepthe room cool enough. I,m wondering if there is a service depot...

The A/C is small for the application. If there is any sun shining into the room it will add heat. If the room is open to other rooms the square footage it is cooling will multiply in proportion. Using a thermometer check the temperature of the air going into it and the temperature coming off of it out the grills. If the difference in temperature is 20°F or greater it is doing the job it was designed to do. If you shut it off when you leave and turn it on after the day heat has built up it will not seem to overcome it.

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