There are many ways of providing air conditioning but please be aware of the difference between conventional air conditioning which recirculates (and cools) the existing air and ventilation which extracts existing air, providing a means for fresh air to come into the room from outside. Some systems are available for combining both but these are beyond the scope of this site.

A good system will have an outdoor unit connected to the indoor air handler via copper pipe and cable. The indoor air handler can take a number of forms depending on whether it is to be wall mounted, floor standing, mounted under the ceiling or partially concealed within a suspended ceiling. There will normally be a digital controller supplied which will adjust air temperature, fan speed etc.

Nowadays most systems take the form of an air to air heat pump. These have the facility to ‘reverse cycle’ which means that the outdoor unit will extract heat from the air outside and make this heat available to the air handler inside. It is possible to achieve low cost heating in this way and it is also very versatile, particularly in Spring & Autumn when it is common to require heating early in the morning and late afternoon but cooling in the middle of the day. It is also possible to set the controller to the desired temperature and leave the equipment to decide whether heating or cooling is required in order to achieve this. Timer facilities are also often used.

Most equipment now incorporates some form of filter which can be effective for removing dust etc from the air. These will require periodic cleaning.

When selecting the equipment, it is critical to ensure that the cooling duty matches the room. There are many factors such as windows and equipment within the room which will affect the size of equipment that is required. For this reason we would always recommend that a site survey is carried out and a quotation obtained before an order is placed.

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