Regulations

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Regulations & Standards

  1. What are the British and European standards that ensures compliance of Heat Pumps?

    • BSEN 14511-1,2,3,4:2004 British & European Standards are the only approved standards for "Air conditioners, Liquid Chilling packages and heat pumps with electrically driven compressors for space heating and cooling". It consists of the following parts:

      1. Terms and definitions
      2. Test conditions
      3. Test methods
      4. Requirements

      These standards are a requirements in Part L1A & 1B of 2006 Building Regulations (see Q2 Standards), in qualification for Enhanced Capital Allowance, in BSEN 15450 “Heating systems in Buildings. Design of heat pump systems”, the European Heat Pump ECO label and Microgeneration Scheme (Product Certification requirements) MCS 007.

      Daikin Altherma; conforms to these standards and tested by SP Technical Research Institute of Sweden an ISO/IEC 17025 Accredited Laboratory reference no. F710939 dated 25/06/2007.

      BSEN14511 1, 2, 3, 4

      2004 These standards apply to all electricaly driven compressors for Heating + Cooling. Air Conditioners (Including reverse cycle air to air), chillers, packadge and heat pumps.

      Accreditation Certificate

      ISO / IEC / 7025

      For Sps Testing House
  2. What standards apply to the design of Heat Pump Heating Systems ?

    • BSEN15450:2007 is the best up-to-date standards and guide to designing Heat Pump heating systems. It covers Air Source and Ground Source Heat Pumps, heating and hot water, installation, design parameters, commissioning, etc. Most importantly it provides guidelines (in the absence of local guidelines) regarding noise, domestic hot water calculations, Seasonal Efficiency Factors (SPF), capacity control, etc.

      Click on images below to open large versions.

      Altherma from Space Air Solutions will comply with these standards.

  3. What are the advantages of having low sanitary hot water?

    • The advantages of maintaining your sanitary hot water between 46-50 °C are:

      1. Reducing the risk of scaling
      2. Reducing your hot water energy consumption by at least 10% due to:
        • High efficiency of your boiler (Heat Pump).
        • Less heat losses from your storage tank.
        • Less heat losses from your distribution pipe work.
  4. Does Daikin Altherma Conform to Part L1A & L1B of 2006 Building Regulations?

    • Yes. Section 8 (Heat Pump Systems) of the Domestic Heating Compliance Guide " Compliance with approved documents L1A & L1B of the Building Regulations 2000 as amended 2006" Stipulates the requirements in selecting a heat pump system for domestic heating and hot water:

      "In order to comply with the requirements, heating systems using a heat pump as the heat generator (such as under floor, warm air and medium temperature radiator systems) in new and existing dwellings should meet all of the following conditions:

      1. Electrically driven heat pumps should have a coefficient of performance of not less than 2.0 when operating at the heating system design conditions.
      2. The minimum provisions for supply temperatures and for wet systems radiator efficiency, in systems using warm (and hot) water heat pumps as the heat generator should be met as given in Section 8 Table 29 (row a).
      3. The minimum provisions for installation should be met as given in Section 8 Table 29 (row b) for warm (and hot) water pumps and as given in Section 8 Table 30 (row a) for warm air pumps.
      4. Where warm (and hot) water heat pumps are used to meet all or part of the domestic hot water load, the minimum provisions for hot water should be met as given in Section 8 Table 29 (row c).
      5. The minimum provisions for control of the system should be met as given in Section 8 Table 29 (row d) for warm (and hot) water heat pumps and as given in Section 8 Table 30 (row b) for warm air heat pumps."

      In Further Information - further guidance on heat pumps:

      • EU Directives for: Machinery Safety; Low Voltage; Pressure Equipment; Electromagnetic Compatibility
      • SAP 2005
      • DEFRA/Carbon Trust Energy Technology List - Heat Pumps (www.eca.gov.uk)
      • EN 14511 Air conditioners, liquid chilling packages and heat pumps with electrically driven compressors for space heating and cooling
      • ISO 13256 Water-source heat pumps - testing and rating for performance: Part 1 - Water-to-air and brine-to-air heat pumps and Part 2 - Water-to-water and brine-to-water heat pumps, Design and Installation of Closed-loop System
      • EN 378 Specification for Refrigerating Systems and Heat Pumps. Safety and environmental requirements.
  5. What kind of protection do I need for my sanitary hot water?

    • WRAS (Water Regulation Advisory Scheme) (Schedule 2, Section 8 page 8.9) guidelines state that hot water needs to be stored above 60°C and distributed at no less than 55°C to prevent microbial growth (legionella). However, in recommendations it states that “hot water should be distributed less than 50°C” to avoid risk of scolding.

      Under G18.5 of the Water Regulations, terminal fittings or communal showers should be supplied through thermostatic mixing valves so water temperatures do not exceed 43°C.

      Altherma; has built in controls to perform the prevention of microbial growth (legionella) by weekly boosting the water temperature between 60°C - 80°C to sanitise the system.

      All Water Controls Supplied by Space Air conforms to WRAS regulations.

  6. Does Daikin Altherma conform to CE markings?

    • Yes all Daikin equipment including Daikin Altherma conforms to CE markings:

      • Low Voltage 2006 / 95 / EC
      • Machinery Safety 98 / 37 / EC
      • Electromagnetic Compatibility 2004 / 108 / EC

      Certificates for each product are incorporated in the Installation Manual accompanying each product.