Air Conditioning

The Important element of air conditioners are the refrigerants, most often a fluorocarbon that flows constantly through the conditioners mechanisms. Becoming a liquid form and giving off heat when it is compressed, and becoming a gas and absorbing heat when that pressure is taken away. The mechanisms that evaporate and compress the refrigerant are divided into two areas, an indoor air filter fan and a cooling coil. And outdoor comprising of a compressor, condenser coil and the fan.In the air cooling cycle, hot humid air is drawn from the room through the filter and over the cooling coil. This coil contains a refrigerant fluid with an extremely low boiling point, i.e. it will have boiled and evaporated at room temperature. The hot air gives up its heat to the refrigerant and in the process, causes the refrigerant to vaporize. Cooled dehumidified air is blown back into the room. The vaporized refrigerant will then be extracted to the compressor, which pumps it under pressure to the condenser coils.

What is air conditioning?

If you look up AIR CONDITIONING in the Collins English Dictionary you will see:

“A system or process for Controlling the Temperature and sometimes the Humidity and Purity of the air”Controlling the temperature is making it able to heat and cool, not only cool.The air that we breathe today is made up of 3 major components; they are all capable of carrying energy (heat):1) The molecular constituents of the air we breathe in: Oxygen (23%), Nitrogen (76%), Carbon Dioxide (< 1%) and Inert Gases (< 1%)2) The moisture or water vapor: Moisture is present in the air at all times, the quantity present being dependent upon the air temperature. The higher the air temperature the more moist it will be.3) Airborne Particles: These are particles, unseen by the human eye, suspended within the air from either industrial or natural pollution such as Pollen, Dust, Smoke, Germs… etc.As air is the only media that surrounds the whole of our body, therefore we need to condition this air to provide comfort.The action needed is:1) To be able to control temperature (Heating & cooling) which means we need to be able to add energy (for heating) or remove unwanted energy (for cooling). Generally our comfort conditions range between 20 - 25 °C in the UK.2) Controlling Humidity (moisture content in the air around us), either to humidify (add moisture) when the surroundings are dry, which can result in dryness of skin, dry throat and encourages a static built-up) or to de-humidify (remove moisture) when the amount of moisture in the air is above average, which can result in uncomfortable breathing conditions. Ideal humidity is generally between 30-70 % RH (Relative Humidity) in the UK.3) Provide Ventilation to provide the necessary amount of oxygen for breathing and dispelling carbon dioxide, odours, Smoke, Dust etc. General ventilation requirements range from 5 to 18 litres per second per person.4) Provide Filtration to clean both outside and inside air by removing dust, pollen, etc. Dust in dry air combined with lack of moisture in the air is the main cause of static shocks.Lack of ventilation and filtration together with the lack of maintenance causes Sick Building Syndrome (SBS).Therefore our air conditioning ensures we tick all the boxes, they all have the ability to:HEAT, COOL, HUMIDIFY, VENTILATE AND FILTER

Just Coolers use TNT UK - Express National Services as their preferred carrier

 TNT Express is the fastest and most reliable provider of nationwide door to door on demand next working day express delivery services for documents, parcels and other items. They are the only parcel carrier offering door to door next working day delivery services for all destinations in Great Britain and Northern Ireland.  TNT offer a range of service options which upon request provide faster transit times than our standard next working day delivery service as follows:  12:00 Express  10:00 Express  09:00 Express  Saturday delivery service  Unique TNT ExpressShipper software enables us to prepare and complete consignment notes and address labels using our own computer equipment.  Your goods are carried on several different vehicles and handled in various TNT depots using automated sortation systems within our door to door express delivery network. Each consignment must therefore be safely and securely packed for transit. Advice is available from your local TNT UK depot.  Proof of delivery is available in real time on the internet shortly after TNT deliver your consignment in the United Kingdom and to access this service please click on to track ‘n’ trace.

*NEW* Model KY-32 Portable Unit ( 2.7 Kw ) - No installation This year Just Coolers have added to its line of air conditioning units. We decided to start selling mobile air conditioning units as we saw it as a hole in the market. These units are incredibly stylish and the only installation needed is to plug it into the mains socket!Model KY-32 Portable Unit ( 2.7 Kw ) - No installationThis is a portable, yet powerful KY-32 air conditioning unit, with a remote control. There is no fitting required - simply take it out of the box, plug it in, and cool down.The features on this unit are:
• It has a full colour display and easy to use functions
• 24 hour timer
• You can choose from the 3 speed airflow
• Not only does it cool but also includes Dust / pollen filters
• Cooling capacity of 12000 BTU/hr
• These Units are not only Economical but are low-cost cooling
• For Every 1.25 kW input power spent you get 2.7 kW of cooling output
• The units come complete with a 12 month warranty 

I have just fitted four air con units this weekend. The split type with the internal cartridge and the external chiller unit. It was very straight forward. The most hardest thing was drilling the 75mm holes and lifting the external units onto the framework about 5mtrs off the ground. As far as connecting them together goes there are 4 threaded connectors for the refrigerant and 5 wires to connect. It all runs from 1 plug top and draws around 8A. I have never fitted them before but managed to do all four in one weekend. We were quoted £2K to fit them by an Air Con company to install only and said it would take a week! (£2k was the cheapest, £3.5K was the most expensive!!)  

 I think professional aircon installers are going to have to undergo some form of reality Check, sooner or later, And as is often the case, sooner should be better than later. Until very recently, air conditioing was a luxury that people could never consider for their homes. The market was for quality commercial products, installed in a tailored manner by quality installers. But there is a whole new market opening up, and operates with different rules and with different value criteria. Installers who adopt the “it’s got to be a top-spec solution or it’s no solution at all” attitude will find themselves missing out on a very valuable and legitimate market to enter.  Let’s take an honest look at the product fitted. It’s not an inverter model, but it makes it cheaper, and the capital cost verses running cost equation is something people will have to decide for themselves, as is the noise level they can tolerate at on 37 decibels .  Overall I think installers are being too harshly dismissive.On a proffesional level they have virtualy no appeal or use.They are not made for that market.As a cheap domestic DIY system you could do worse, (but not much!)Not sure, I think you could probably do a lot worse. But more to the point, how much better could you do, and how much would that improvement cost? How long would it take to recoup the extra cost? If you go to Savile Row and have a suit made for £5K it will fit you perfectly and last a lifetime, but that doesn’t mean that millions of people aren’t happy enough with an off-the-peg one at a twentieth of that price from Marks and Spencer, nor does it mean that Marks and Spencer suits are cheap rubbish, far from it/ Britains manufacturing and service industry has a legacy of corpses of companies who dismissed low-cost, “upstart” products as being of little appeal or use. 

Think on.

BTU (British Thermal Unit) - The standard of measurement used for measuring the amount of heat required to raise the temperature of one pound of water by one degree (Fahrenheit).

The British thermal unit (BTU or Btu) is a unit of energy used in the United States, particularly in the power, steam generation, and heating and air conditioning industries. Although it is still used ‘unofficially’ in metric English-speaking countries (such as Canada, the United Kingdom, and sometimes in New Zealand), it is increasingly an outmoded and outdated unit of measure. Elsewhere (and always in scientific use) the BTU has been replaced by the SI unit of energy, the joule (J).

In North America, the term “BTU” is used to describe the heat value (energy content) of fuels, and also to describe the power of heating and cooling systems, such as furnaces, stoves, barbecue grills, and air conditioners. When used as a unit of power, BTU per hour (BTU/h) is understood, though this is often confusingly abbreviated to just “BTU”. In the United Kingdom and other parts of the world it is written BTU.

The unit MBTU was defined as one thousand BTU presumably from the Roman numeral system where “M” stands for one thousand (1,000). This is easily confused with the SI Mega (M) prefix, which adds a factor of one million (1,000,000). To avoid confusion many companies and engineers use MMBTU to represent one million BTU. Alternatively a therm is used representing 100,000 or 10⁵ BTU, and a quad as 10¹⁵ BTU.

As we launch our new website Cheap-air-conditioning we are happy to be sat in our new offices back in Bournemouth. After a busy (compleatly mental) 2006 we moved to our large offices and storage facility in Uddens Trading Estate, Wimbore, (next to the Ferndown Industrial Estate) The main problem was the lask of things to do (play) No Decent Cafe, Expencive pubs with overpriced rubbish  food. After a very poor summer 2007 and the fact we hate haffing (is that a word) to drive there every day from Bournemouth, we moved back. We still have the space as storage but now run the business from our nice warm (heated by on of our KFR 36gw FN Just Coolers Air conditioners. With our nice new purpose built offices overlooking the warehouse located in Bournemouth we have the nice options of Chinese, McDonalds, Quallity Cafe inc The Coffee House  (which has an ex Raymand Blanc Chef) Lunch is always good and well prices. The weather is a bit cold today but with a good summer predicted; we look forward to a good year ahead.