This is a term used mostly for air conditioning (heating and cooling). This type of system can be used within car showrooms, office spaces, reception areas, dentists, pubs, restaurants, schools, portable buildings, shopping centres, hotels, nurseries, conservatories and the home etc, and can extend to other working environments. This type of system is particularly good where the relative humidity (RH) factor is not important.

Aircon Plus offer specialist fitting services in situations where planning permissions effect proposed installation of air conditioning systems. We are able to install systems to meet the necessary demands for information technology and communications (ICT) industries such as computer rooms and data centres.

You maybe able to qualify for enhanced capital allowances (ECA's), due to exceptional system performance of inverter systems. Systems of this nature are seen as green by the government endorses such allowances (ECA's). This as a very tax efficient purchase indeed. For further information please refer to the governments website on Enhanced Capital Allowances.

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This type of system is ideally situated centrally within the ceiling. The only part of the system which remains visible is the fascia. This can petrude from the ceiling usually by only 10 and 20 mm. All internal workings of the system sit in the ceiling void. Usually only 300 to 400 mm of void space is required to house the workings of the system.

These system types return all the air through the centre of the fascia and discharge through the sides. The benefit of this type of system is the sheer fact that no wall or floor space is taken up. This particular systems are useful for open plan areas.

This system also has low noise input, due to the reduced air velocity passing through the four sides. This system is among one of the most aesthetically pleasing and efficient.

This system is usually of the same look as the floor mounted system and identical in operation. Floor mounted and ceiling suspended systems normally double up as one made to suit both applications.

This type of system hangs directly beneath the ceiling and is a favourable option were ceiling voids are not available.

This system is fixed to a wall at high level. Usually returning the air via the front fascia and discharge assembly situated at the top or bottom of the unit.

This system is very cost effective but is not so efficient in larger open plan areas. We suggest cellular spaces up to 60 square metres.

This system is ideal were high level wall space is not available and were ceiling space is not available also.

The system returns air via the front fascia and discharges air through the top louvered discharge point - ideal as a storage heater replacement. This system can be as effective as a ceiling cassette in heat pump mode, but less effective in the cooling cycle due to the air flow.

This is a system capable of producing heating & cooling from a single installation.

In cooling mode, the system is as you would think but in heating mode, the system changes to a forced air heating by reversing its operation internally. Both systems are similar with the same installation practices adopted. In heating mode, this can reach room temperatures up to 28C and maybe controlled thermostatically between 19C & 28C. Systems are designed to cool to 23C (+/1-1C) in the summer when the external temperature is at 30C. Systems will operate up to a 40C ambient at a loss in performance & will lower temperatures in conditions milder than this if required. Systems are fully automated achieving room temperatures between 20C & 27C dependant on thermostat setting & ambient condition.

These types of system are engineered as additional add-on items interfaced with an existing or new installation. The majority of light commercial systems only recirculate the air within the area being served and will not offer fresh air input.

Fresh air input is increasingly important were ventilation is very limited. Such as offices with no opening windows. Fresh air input is required to comply with CIBSE guidelines, building regulations and health & safety stipulations. If you do not have opening windows you will need the addition of fresh air to meet current legislation. The level of fresh air to be brought into a building can be determined by having one of our staff investigate and quote accordingly.

Aircon Plus can engineer a system to around 8-12 litres per second, per person dependent on the amount of staff occupying the room. And the amount of it equipment, type of lighting currently in position etc.

The name for a system which uses water as a secondary cooling medium. Water chillers are used for larger projects and can look after entire buildings from a single ite of plant.

Water chilled systems are more costly and very labour intensive and therefore are normally installed into buildings as part of the initial build, as apposed to retro fitting. Water chilled systems can be installed in ABS / PVC / plastic / stainless steel / galvanised steel dependant upon specification and requirements given by the client. Usually we would use galvanised steel and ABS plastic.

Air cooled chillers can be supplied eliminating the need for a cooling tower or closed loop heat rejection circuit (air cooled as apposed to water cooled). Air passing directly over the heat exchanger containing the refrigerant is used as the preferred heat rejection method.

In addition to this type of system we can offer water cooled chillers where a rooftop cooling tower or closed loop heat rejection circuit is installed. Water passed directly over the heat exchanger containing the refrigerant, this water is then superheated by the same and pumped to a suitable outlet. Once the water arrives at this outlet (a cooling tower for example), the water is sprayed / passed over a fan and the heat consequently rejected into the atmosphere. The now sub-cooled water returns to the heat exchanger and the same process begins again.