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A dehumidifier reduces the relative humidity of the surrounding air two ways. The removal of moisture from the air ( as described above ) reduces its humidity. The relative humidity of the air is further reduced by heating as the air is discharged over the condenser and out the front. The air is actually heated several degrees in this process. It is normal for the surrounding air to slightly increase in temperature as the dehumidifier operates. This heating effect further reduces the relative humidity of the surrounding air.
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Dehumidifier UK is a site to help you find a residential dehumidifier .
| A commercial dehumidifier removes moisture
from the air. The usual technique used to remove the moisture is to condense the
moisture onto a cold surface. Anyone who has poured a cold glass of iced tea on
a hot, humid summer day knows that moisture will condense on the glass.
When air cools, it loses its ability to hold moisture; in the case of the cold
glass, the moisture in the air condenses right onto the glass. If the glass is
left on a table long enough and if the air is very humid, a significant puddle
of water can form. You may have noticed the same phenomenon in any air conditioner.
The moisture in the air inside the room condenses onto the air conditioner's cold
coils. If it's a window unit, the water drips out the back of the unit onto the
ground. A dehumidifier is simply an air conditioner that has both its hot
and cold coils in the same box. A fan draws the room's air over the cold
coil of the air conditioner to condense the moisture (which normally drips into
a bucket). The dry air then passes through the hot coil to heat it back
up to its original temperature. That's all there is to it!
If you have a room that is air conditioned, it should not need a dehumidifier -- the air conditioner should be doing the dehumidifying for you.
A dehumidifier works on the same principal as a refrigerator. Moisture laden
air is drawn into the dehumidifier and is passed over a cold coil (evaporator).
The warm damp air then condenses on the cold coil into water droplets, which
pass into the water container. The air is then passed over the warm coil (condenser)
and is expelled from the dehumidifier.
If you are looking for the commercial dehumidifier , at Dehumidifier UK your sure to find most of the sites you would probably want to visit for the best sites for the commercial dehumidifier . The best buy a dehumidifier humidifier can be had if you look round. To get the best commercial dehumidifier , shop around and compare each portable dehumidifier from the different sites,
Below are answers to the sorts of questions
that we are often asked by people looking to buy their first desiccant dehumidifier .
We have divided this section into two, desiccant dehumidifier s for the home and
desiccant dehumidifier s for unheated or colder areas (i.e. storage, garages, workshops,
boats, caravans, holiday homes, conservatories etc.)
How does a desiccant dehumidifier work?
A desiccant dehumidifier draws the air in from the room over a
filter and passes it over some cold coils similar to the coils on a fridge.
As the coils are cold water condenses and drips into a bucket. The air is then reheated to room temperature
and blown back out of the desiccant dehumidifier .
Why does water appear on my windows/cupboards/walls?
Where does this water come from?
Can I just get rid of it by opening my windows?
Will a industrial dehumidifier do the whole house?
What about the black spots of mould on my window and bathroom sealant?
Are they expensive to run?
What is the humidistat?
Should I turn the portable dehumidifier on for just a few hours a day?
Why do unheated areas get separated out?
What happens when the temperature in the room drops down towards freezing?
What is the correct type of commercial dehumidifier to use in these applications?
So what temperature will a hot gas defrost system work down to?
Question & Answers,
Q - Will my desiccant dehumidifier work in a cold room ?
A - A desiccant dehumidifier will not operate satisfactory in a room that is below 65 degrees F. At this temperature it will become necessary to operate the dehumidifying coil below freezing temperatures in order to reduce the relative humidity to a reasonable valve. Frost on coils usually will appear.
Q - My unit will not operate at all, help.
A - Unit may be unplugged. House fuse blown or circuit breaker tripped. Check the bucket, it may be full, empty it. Float not inside the bucket properly, adjust the float so it hangs in the bucket properly.
Q - I have frost building up on my coils.
A - Is the air temperature to cold, below 65 degrees? Dirty coils can effect the air flow over the coils, unit may need to be steam washed. Poor air flow from a slow fan can also allow the coils to frost up.
Q - My unit does not seem to remove much moisture.
A - Poor air flow from a slow fan or the fan motor may have quit completely. Dirty coils, may need to be steam cleaned. Unit too close to the wall giving poor air flow. desiccant dehumidifier s have a compressor inside, it may not be running due to a bad start relay or a bad compressor or faulty float switch.
Q - My desiccant dehumidifier is making a squealing noise.
A - This often is a bad fan motor. It will need to be replaced.
Q - My desiccant dehumidifier will not collect water and seems to be making a clicking on and off noise.
A - Often a clicking on and off noise is the compressor trying to start but cannot. Often this can be as minor as a bad start relay or as major as a bad compressor itself.
Q - My desiccant dehumidifier will not collect water.
A - If the fan is operating ok, some desiccant dehumidifier s have a frost guard switch ( round device attached to the evaporator coils ). If this frost guard opens circuit it will stop the compressor from running at all. A ohm meter can be used to test the frost guard switch.