Conservation of fuel and power: Approved Document L, Volume 2 — Buildings other than dwellings

R44O, NRL I4N4E ZV EAR S,I OLN1(b), L2(b) Section 8: Commissioning 8.1 Fixed building services must be commissioned to ensure that they use no more fuel and power than is reasonable in the circumstances. On-site electricity generation systems must be commissioned to ensure that they produce as much electricity as is reasonable in the circumstances. The commissioning process should involve testing and adjusting the fixed building services and on-site electricity generation as necessary and in accordance with the manufacturer’s instructions. 8.2 Fixed building services should be commissioned with the aim of optimising their in-use performance, with reference to Section 5 and Section 6 of this approved document, which provide further guidance on minimum efficiencies, controls and other relevant standards. 8.3 For large or complex projects, a commissioning manager should be appointed. In all other cases, the appointment of a commissioning manager should be considered on a case-by-case basis. The competence of the commissioning manager should meet the list of knowledge and skills set out in CIBSE’s Commissioning Code M. 8.4 When installing a fixed building service, or on-site electricity generation that is subject to the energy efficiency requirements, a commissioning plan should be prepared that identifies all of the following. a. The systems to test. b. The tests to complete. c. Schedule of commissioning. d. Roles and responsibilities. e. Documentation requirements. The building control body should be given all of the following. a. The commissioning plan. b. The design-stage target primary energy rate and building primary energy rate calculation. c. The design-stage target emission rate and building emission rate calculation. The building control body can then check that commissioning is being done as the work proceeds. 8.5 If the only controls for a fixed building service or on-site electricity generation are ‘on’ and ‘off’ switches, this particular service does not need to be commissioned. 8.6 Any commissioning should be carried out in accordance with all of the following procedures. a. CIBSE’s Commissioning Code M. b. Any of the following. i. The specific CIBSE Commissioning Codes relevant to each service being commissioned. ii. The specific BSRIA Commissioning Guides relevant to each service being commissioned. iii. A combination of (i) and (ii). c. The procedures for air leakage testing of ductwork given in paragraphs 8.10 to 8.13. 61 Building Regulations 2010 Approved Document L Volume 2, 2021 edition O N L I N E V E R S I O N