Air Conditioning

Air conditioning offers a valuable means of environmental control within the workplace, providing comfortable conditions for employees and visitors and in turn promoting productivity and a more positive working environment. Through intelligent design and the selection of the correct equipment, RJS can provide an air conditioning system suitable for all environments and requirements – and as a Mitsubishi-accredited installer, you can be assured that we provide a consistently high level of installation and after-sales service.

We offer a range of installation options to suit a range of property sizes, from small retail units to hotels, multi-storey office buildings to industrial sites. Offering a cost-effective and energy efficient installation to provide heating and cooling throughout your premises. Installation and maintenance of air conditioning systems:

• Single and multi-split arrangements
• Ducted systems
• VRF installations
• Wall-mounted
• Floor-mounted
• Ceiling cassette
• Void-mounted
• Hybrid Systems

Ventilation systems change or replace the air within an enclosed area, providing a further means of air quality control. In addition to helping to control temperature, such systems can be used to circulate air within a building and to exchange air with the outside, to help remove moisture (combatting the spread of mould and mildew), dust, smoke, airborne bacteria and odours.

System types available include both positive and negative pressurisation:

We offer high COP (Coefficient of Performance) heat recovery installations. Excess or waste heat is utilised within a system to provide enhanced performance and additional efficiency. In ventilation, this can be used to heat or cool external air to ambient temperatures, while in air conditioning systems a single condenser (outdoor unit) provides both heating and cooling modes simultaneously, utilising a 'mixed energy' mode to generate the larger demand (heating or cooling) for delivery, while the lesser demand is delivered for free. This leads to increased system performance and flexibility, while delivering reduced energy consumption and so reducing operating costs.

An air source heat pump (ASHP) is a system that transfers heat from outside to inside a building, or vice versa. Under the principles of vapour compression refrigeration, an ASHP uses a refrigerant system involving a compressor and a condenser to absorb heat at one place and release it at another. Air at any temperature above absolute zero contains some energy. An air source heat pump transfers some of this energy as heat from one place to another, for example between the outside and inside of a building. This can provide space heating and hot water. A single system can be designed to transfer heat in either direction, to heat or cool the interior of the building in winter and summer respectively.

There are two main types of air source heat pump systems:

• An air to water system distributes heat via your wet central heating system. Heat pumps work much more efficiently at a lower temperature than a standard boiler system would. This makes them more suitable for underfloor heating systems or larger radiators, which give out heat at lower temperatures over longer periods of time
• An air-to-air system produces warm air which is circulated by fans to heat your business premises

The benefits of installing an Air Source Heat Pump:

• Reduce your heating bills
• Cut your carbon footprint
• You could earn income through the Renewable Heat Incentive (RHI)
• Can be designed to provide hot water