Change to UK Building Regulations There has recently been a change to Part L of the UK Building Regulations, which gives recognition to the energy efficiency of Active Chilled Beams, in that they use no secondary fan power. Part L contains limiting SFP (Specific Fan Power) figures for both ‘primary’ Air Handling Units and also secondary terminal units (e.g. Fan Coil Units), but until recently made no differentiation for AHUs serving different secondary system types. Active Chilled Beams don’t use a secondary fan, so consume no secondary fan energy, relying instead on the pressure generated by the primary Air Handling Unit fresh air supply to generate induction of room air through a cooling/heating coil. This additional pressure means that the SFP of the Air Handling Unit delivering the building’s primary fresh air requirement may increase, but as no secondary fan energy is required to recirculate room air through the cooling or heating coil of the room terminal units, the overall system fan energy is lower.

Prior to the recent addendum, the maximum SFP within Part L could on occasion prevent designers from using Active Chilled Beams as the additional pressure could raise the primary Air Handling Unit SFP above the regulatory limit, thus forcing the designer to use a system with secondary fans, which gave the counter-productive outcome of a higher system energy use. Thankfully however, having had this anomaly brought to their attention by the UK CBCA (Chilled Beam and Ceiling Association), the governmental department responsible for Part L (the DCLG) have recognised and addressed this by issuing an addendum to Part L that gives an additional allowance of 0.3w/l/s to the SFP of an Air Handling Unit serving an Active Chilled Beam systemcheap wall ac units, meaning that designers now have more possibility to utilise Active Chilled Beam technology, avoid secondary fans and thus improving efficiencies to reduce overall system energy usehome central air conditioner comparisons

Link to the addendum: https://www.gov.uk/government/uploads/system/uploads/attachment_data/file/503643/Addendum_to_NDBSCG_on_Part_L.pdf Read more about our chilled beams >> Energy saving and environmental protection as standard. HomeCompanyProductsServiceDownloadsSupplier portalWolf ErP PortalReferences Company About us History A story of success Wolf GmbH is a leading supplier of air-conditioning and heating technology. The company’s rapid progress to the forefront of Europe’s building services industry started in the air-conditioning and air-handling sectors. central ac unit dimensionsWolf products are installed in opera houses, airports and office complexes. Entry into the heating-technology sector in the early 1980s was a milestone in the company’s success story. Environmentally friendly and efficient heating units from Wolf quickly establishedthemselves as quality brand products.

As a systems supplier Wolf combines the five sectors of heating, ventilation, air conditioning, solar and combined heat and power plants, establishing itself firmly as the competence brand for energy saving systems. Wolf concentrates all its capabilities at its single production facility, which is sited in Mainburg, Bavaria. 1963 Manufacture of drying plant for processing hops in Mainburg,          the "heart of the Hallertau'', 80 employees. 1970 Wolf belongs to the Salzgitter Group. 1973 Wolf begins to manufacture air-handling units:          special installations for hotels, hospitals, airports,           opera houses and industrial halls. 1975 Ventilation equipment is added to the range. 1981 Wolf starts the production of heating equipment. 1989 Merger between Salzgitter and Preussag:           Wolf is a company of Preussag AG. 1991 Boilers make up the majority of sales for the first time.           Wolf is Germany's third largest seller of oil and gas boilers.          

It is the European market leader in air-handling equipment. 1994 Wolf starts the production of combi boilers. 1996 Solar equipment is added to the range. 1997 Wolf introduces condensing technology. 1999 WOLF GmbH belongs one hundred percent to Preussag AG. 2002 WOLF GmbH becomes a member of the RAL certification authority 2003 New orientation as system supplier, large sales campaign 2004 Air-handling equipment:          Market leader, gas / oil boilers: Place 3 in Germany          Combi boilers: In the leading group          Solar equipment: In the leading group          Largest employer in the Kelheim district 2005 MGK medium-sized gas condensing boiler;           compact air-handling unit with heat recovery 2006 CSK oil condensing boiler, Wolf control system for floor           standing boilers and wall mounted units 2006 Wolf becomes a company within Centrotec Sustainable AG, Brilon 2007 CWL comfortable home ventilation,           BWS and BWL heat pumps for air/water

2008 COB oil condensing boiler, KG-Top air-conditioning unit           in hygienic version according to DIN 1946-T4,           CGG-2/CGU-2 gas-fired wall-mounted units, acquisition           of combined heat and power unit manufacturer           Kuntschar+Schlüter of Wolfhagen 2009 CSZ solar central heating, school ventilation unit,           a single room ventilation unit, split heat pump,           SEM-2-300 solar tank 2010 Wolf heat pump, Comfort-kompakt-Ventilation Unit CKL 2011 Comfort-Flat-Ventilation Unit CFL, Extension service areas:           Heat pump, oil condensing boiler, heat an power unit;           acquisition of Dreyer & Bosse Kraftwerke GmbH of Gorleben 2012 Comfort domestic ventilation system CWL Excellent, CWL-F Excellent 2013 KG Top eco, CWL-F-150 Excellent, CWL 180 Excellent; New series of            condensing boilersAir Handler or Furnace? When should I choose an Air Handler over a Furnace in my Split System?

Picking the right heating equipment for your home is as easy as figuring out what type of temperatures your area experiences. If you live in a climate like Florida, a split-system air conditioner that contains the outdoor condensing unit and indoor air handler can supply the powerful cooling power you need. Residents of the South who do see some cooler temperatures can install a to address all of their heating and cooling needs. If you live somewhere in the North, like Minnesota, you will want to invest in a high-efficiency gas furnace to heat your home in the winter. Air handlers, coil, split systems, oh my! There are so many components that go into a heating and cooling unit that it can oftentimes become confusing. plays a vital role in making sure that your home is a premium comfort levels. is a part of this crucial network of components. At its core, an air handler does just what it sounds like it would do - it handles the air involved

in your heating and cooling system. It is the indoor component of a split-system air conditionerYour air handler contains the evaporator coil, blower and many of the components of your ventilation system as well. The evaporator coil removes the heat from the air which is then blown through the series of ducts in your home, which are attached to your air handler. Because your air handler will often contain heat strips that provide additional heating power, it is sometimes mistakenly referred to as an 'electric furnace.' However, there are different HVAC systems that function as true electric furnaces that work in different ways than an air handler. heat strips in your air handler are there to provide sufficient heat when it gets a little colder outside but not cold enough to warrant having a furnace. Your local air conditioning or heat pump specialist will be able to tell you which systems are good for homes in your area. You can find your air conditioning or heat pump