Air Conditioning, Ventilation, Heating, Transport Systems, Light, Power, Safety
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  • Introduction to smoke and fire detectors
    Smoke and fire detectors, and associated base units, detect smoke and other indicators of fire. Some detectors issue a signal to a separate alarm system, such as fire alarm sounders, beacons and other signalling devices. Others incorporate their own audible or visual alarm. The detectors employ different processes to detect smoke, heat or carbon...
    Guidance, 07 December 2012
  • Introduction to chilled beams and ceilings
    Chilled beams and ceilings are a type of convection HVAC system suitable for use in large buildings. They can provide both heating and cooling. Passive chilled beams rely solely on convection, while the active type, also known as induction diffusers, are connected to ducts to push supply air to the unit, increasing the heating and cooling...
    Guidance, 18 January 2013
  • Introduction to secure chemical stores
    In an effort to prevent environmental pollution and damage to human health, legal requirements now dictate that hazardous chemicals are kept in secure chemical stores. The government advises that chemical storage areas are secure, away from heavy machinery and vehicles to prevent accidental damage, unlikely to flood, and clearly signposted. The...
    Guidance, 10 December 2012
  • Introduction to packaged plant rooms
    Packaged plant rooms are self-contained prefabricated enclosures that house HVAC, power or communications equipment in a single centralised facility. Mechanical and electrical services are integrated into a single containerised or skid-mounted unit, which is manufactured offsite. It is then delivered fully assembled, or in kit form for sites with...
    Guidance, 07 December 2012
  • Introduction to solar energy
    Products that collect, convert and store solar energy form a large part of the renewables sector. Systems have been developed to suit applications from large-scale solar farms to domestic microrenewables projects. Photovoltaic (PV) solar panels collect sunlight and convert it directly into electricity, which can be used to power different systems...
    Guidance, 07 December 2012
  • Introduction to floor drain outlets
    Floor drain outlets are typically made from grade 304 or 316 stainless steel or aluminium. They are suitable for surface drainage in commercial kitchens, and industrial food production, pharmaceuticals production and plant room areas. Height-adjustable gullies can be selected to suit particular flooring finishes, whether resilient / flexible...
    Guidance, 10 December 2012
  • Introduction to roof ventilation turrets
    Roof ventilation turrets use external wind and temperature to improve indoor air quality (IAQ) as part of a sustainable ventilation system. Unlike mechanical ventilation systems, natural ventilation uses a minimal amount of energy and is subsequently cost-efficient. Natural ventilation systems are becoming increasingly popular in schools and...
    Guidance, 07 December 2012
  • Introduction to building services valves
    A wide range of valves is available for controlling the flow of cold water, hot water, air and steam in heating, air conditioning, ventilation and water supply systems. Pressure balancing valves (PBVs) measure and balance flow rates in heating and cooling systems, ensuring that the desired rate is achieved irrespective of any pressure changes...
    Guidance, 07 December 2012
  • Introduction to boilers
    Boilers provide hot water or steam for general domestic use, central heating systems and industrial processes. Boilers for domestic / residential central heating and hot water are compact units, designed to fit into small spaces in the home. Condensing and combi boilers are typically specified for these applications. Boilers for commercial...
    Guidance, 15 March 2013
  • Introduction to mechanical ventilation units
    Mechanical ventilation systems are installed in new build and refurbished houses and flats where natural ventilation is insufficient to supply fresh air, and remove indoor pollutants and excess moisture. The most energy efficient system is mechanical ventilation with heat recovery (MVHR). Heat from the warm air that is being extracted is passed to...
    Guidance, 07 December 2012
  • Introduction to extraction arms
    Dust and fume extraction arms are specified in the manufacturing and industrial sectors to remove harmful materials from the working environment, to protect the health of operatives. The size of the extraction arm will vary on the application: for an automotive production line, a long flexible arm will be required; whereas a desktop laboratory...
    Guidance, 07 December 2012
  • Introduction to underfloor heating and cooling
    Underfloor heating and cooling systems are an efficient means of heating: they provide a stable room temperature with minimal convection and associated draughts. They provide a pleasant warmth underfoot in domestic bathrooms, kitchens and public swimming pools. UFH systems save wall space that is traditionally used by radiators, enabling open...
    Guidance, 07 December 2012
  • Introduction to humidifiers
    Humidifiers are used to improve dry indoor air conditions that can be created by air conditioning or heating systems. Some provide humidification only, while others offer both cooling and humidification. Isothermal humidifiers use a variety of methods to heat the water to create steam, and require an energy source. Immersed electrode humidifiers...
    Guidance, 07 December 2012
  • Introduction to ventilation fans
    Ventilation fans are designed for air supply, air extract or air supply and extract functions. Models are available for a host of applications in the residential, commercial (including IT and telecomms), and industrial sectors. They can be ceiling, duct, roof, wall or floor mounted. Different types include: - Centrifugal fans, which feature a fan...
    Guidance, 10 December 2012
  • Introduction to water harvesting
    Water harvesting systems are built into new properties or fitted to existing houses to collect and capitalise on rainfall. By preventing rainwater waste, they create opportunities for water re-use for homes and businesses, while safeguarding supplies ahead of water shortages or hosepipe bans. For residential property development, water management...
    Guidance, 18 January 2013