NEN EN 15378 : 2007

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions, symbols and units
  3.1 Terms and definitions
  3.2 Symbols and units
4 Principle of the method
  4.1 Boiler regular inspection
  4.2 Heating system one-off inspection
  4.3 Inspection classes
  4.4 Advice
  4.5 Inspection report
5 Boiler inspection procedure
  5.1 Boiler inspection class identification
  5.2 Boiler identification
  5.3 Document collection
  5.4 Boiler visual inspection
  5.5 Boiler maintenance status
  5.6 Boiler functionality check
  5.7 Boiler controls, sensors and indicators
  5.8 Meter readings
  5.9 Boiler performance evaluation
  5.10 Boiler inspection report and advice
6 Heating system inspection procedure
  6.1 Heating system inspection class identification
  6.2 Heating system inspection preparation
  6.3 Heating system identification
  6.4 Heating system functionality check
  6.5 Heating system maintenance status
  6.6 Heating system controls, sensors and indicators
  6.7 Energyware consumption
  6.8 Space heating emission sub-system
  6.9 Space heating emission control sub-system
  6.10 Space heating distribution sub-system
  6.11 Generation sub-system
  6.12 Generation sub-system sizing
  6.13 Efficiency of space heating sub-systems
  6.14 Domestic hot water systems
  6.15 Inspection report and advice for space heating system
       and domestic hot water system
Annex A (informative) Default inspection class tables
      A.1 Legend for default inspection class tables
      A.2 Boiler inspection
      A.3 Heating system inspection
      A.4 Obligatory references if applying this annex
Annex B (informative) Examples of national inspection class tables
      B.1 Definition of classes
      B.2 Boiler inspection
Annex C (informative) Flue gas analysis and boiler basic settings
        check
      C.1 Measuring procedure
      C.2 Maintenance data
      C.3 Reference values for flue gas analysis
      C.4 Advice on boiler basic setting
      C.5 Obligatory references if applying this annex
Annex D (informative) Sample boiler inspection report
Annex E (informative) List of possible improvement actions
      E.1 Introduction
      E.2 Boiler
      E.3 Heating system generation
      E.4 Space heating distribution system
      E.5 Space heating emission system
      E.6 Heating system control
      E.7 Domestic hot water
      E.8 Other
Annex F (informative) Evaluation of energyware consumption for
        space heating system and domestic hot water system
      F.1 General
      F.2 Energyware measurement methodologies
      F.3 Measurement period
      F.4 Usage separation
      F.5 Climatic data and domestic hot water production
      F.6 Reference values
      F.7 Advice criteria on energyware consumption
      F.8 Obligatory references if applying this annex
Annex G (informative) Stratification in high ceiling rooms
Annex H (informative) Space heating emission control sub-system
      H.1 Identification of the heat emission control level
      H.2 Indoor temperature check
      H.3 Advice
Annex I (informative) Space heating distribution sub-system
      I.1 Flow rate
      I.2 Type and setting of circulation pumps
      I.3 Distribution circuit typology
      I.4 Compatibility of distribution circuits with boiler typology
      I.5 Insulation
Annex J (informative) Domestic hot water system
      J.1 Recirculation losses
Annex K (informative) Sample inspection report for heating system
Annex L (informative) Boiler settings verification
Annex M (informative) Boiler combustion power
      M.1 Measurement methodologies
      M.2 Maintenance data
      M.3 Advice criteria on combustion power
      M.4 Obligatory references if applying this annex
Annex N (informative) Boiler seasonal efficiency
      N.1 Measurement and estimation methodologies
      N.2 Reference values
      N.3 Advice
      N.4 Boiler beta[cmb] (average load) determination
      N.5 Estimation of loss factors
      N.6 Obligatory references if applying this annex
Annex O (informative) Boiler or generation sub-system sizing
      O.1 Methodologies
      O.2 Reference value
      O.3 Obligatory references if applying this annex
Annex P (informative) Examples of national data
Bibliography
National Annex NA - Inspection class tables for use in the UK
               NA.1 General
               NA.2 Boiler inspection
               NA.3 Heating system inspection

Defines inspection procedures and optional measurement methods for the assessment of energy performance of existing boilers and heating systems.