Energy Performance of Buildings - Inspection of Building Automation, Controls and Technical Building Management - Part 2: Accompanying TR prEN 16946-1:2015 - Modules M10-11

This Technical Report refers to prEN 16946 1, Inspection of Building Automation, Controls and Technical Building Management — Module M10-11.
It contains information to support the correct understanding, use and national adaption of standard prEN 16946 1:2015.
This Technical Report does not contain any normative provision.

Energijske lastnosti stavb - Pregled avtomatike, regulacije in tehničnega upravljanja stavb - 2. del: Razlaga in utemeljitev prEN 16946-1:2015 - Moduli M10-11

To tehnično poročilo se nanaša na standard prEN 16946-1, Nadzor avtomatizacije stavb, kontrole in tehnično upravljanje stavb »modul M10-11«.
Vsebuje informacije za podporo pravilnega razumevanja, uporabe in nacionalne prilagoditve standarda prEN 16946-1:2015.
To tehnično poročilo ne vsebuje nobenih normativnih določb.

General Information

Status
Published
Publication Date
27-Sep-2016
Current Stage
6060 - Definitive text made available (DAV) - Publishing
Due Date
28-Sep-2016
Completion Date
28-Sep-2016

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SLOVENSKI STANDARD
SIST-TP CEN/TR 16946-2:2018
01-maj-2018
(QHUJLMVNHODVWQRVWLVWDYE3UHJOHGDYWRPDWLNHUHJXODFLMHLQWHKQLþQHJD

XSUDYOMDQMDVWDYEGHO5D]ODJDLQXWHPHOMLWHYSU(10RGXOL0

Energy Performance of Buildings - Inspection of Building Automation, Controls and

Technical Building Management - Part 2: Accompanying TR prEN 16946-1:2015 -
Modules M10-11
Ta slovenski standard je istoveten z: CEN/TR 16946-2:2016
ICS:
35.240.67 Uporabniške rešitve IT v IT applications in building
gradbeništvu and construction industry
97.120 Avtomatske krmilne naprave Automatic controls for
za dom household use
SIST-TP CEN/TR 16946-2:2018 en

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST-TP CEN/TR 16946-2:2018
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SIST-TP CEN/TR 16946-2:2018
CEN/TR 16946-2
TECHNICAL REPORT
RAPPORT TECHNIQUE
September 2016
TECHNISCHER BERICHT
ICS 97.120
English Version
Energy Performance of Buildings - Inspection of Building
Automation, Controls and Technical Building Management
- Part 2: Accompanying TR prEN 16946-1:2015 - Modules
M10-11

This Technical Report was approved by CEN on 11 April 2016. It has been drawn up by the Technical Committee CEN/TC 247.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,

Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,

Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and

United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels

© 2016 CEN All rights of exploitation in any form and by any means reserved Ref. No. CEN/TR 16946-2:2016 E

worldwide for CEN national Members.
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Contents Page

European foreword ....................................................................................................................................................... 3

Introduction .................................................................................................................................................................... 4

1 Scope .................................................................................................................................................................... 6

2 Normative references .................................................................................................................................... 6

3 Terms and definitions ................................................................................................................................... 6

4 BAC audit methodology ................................................................................................................................. 6

4.1 Introduction ...................................................................................................................................................... 6

4.2 Energy flow and mapping of functionality groups of EN 15232 ..................................................... 7

4.2.1 General ................................................................................................................................................................ 7

4.2.2 Explanation of graphic .................................................................................................................................. 7

4.3 Functionality Description ............................................................................................................................ 8

4.4 Implementation of Inspection Procedures ............................................................................................ 8

4.5 Scope .................................................................................................................................................................... 8

5 Classification Method..................................................................................................................................... 8

5.1 Purpose of Classification .............................................................................................................................. 8

5.2 Classification using Points ........................................................................................................................... 8

5.3 Classification influence factors .................................................................................................................. 8

5.4 EN 15232 Classes ............................................................................................................................................. 9

Annex A (informative) Example of an inspection system (available through eu.bac.org) ............. 10

A.1 Introduction ................................................................................................................................................... 10

A.2 Detailed description .................................................................................................................................... 12

A.2.1 Point Scale related to Functions ............................................................................................................. 12

A.2.2 Weights ............................................................................................................................................................ 15

A.2.3 Applications (groups of functions) – importance factors .............................................................. 16

A.2.4 Actual importance factor ........................................................................................................................... 17

A.2.5 Importance factors depending on type of building ......................................................................... 17

A.2.6 Sections of functions – relative importance ....................................................................................... 18

A.2.7 Missing major functionality ...................................................................................................................... 19

A.2.8 Different functionality depending on available equipment ......................................................... 21

A.2.9 Actual Importance of Section 7 Technical building management .............................................. 21

A.2.10 Different parts of a building and different types of spaces in a building ................................. 21

A.3 Explanation of the POINTS AND CLASS SUMMARY table ................................................................ 22

A.4 eu.bac classification .................................................................................................................................... 23

A.4.1 AA/A/B/C/D/E .............................................................................................................................................. 23

Bibliography ................................................................................................................................................................. 25

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European foreword

This document (CEN/TR 16946-2:2016) has been prepared by Technical Committee CEN/TC 247

“Building Automation, Controls and Building Management”, the secretariat of which is held by SNV.

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. CEN shall not be held responsible for identifying any or all such patent rights.

This document has been prepared under a mandate given to CEN by the European Commission and the

European Free Trade Association.
This document is currently divided into the following parts:

— Inspection of Building Automation, Controls and Technical Building Management — Module M10-11

[currently at Enquiry stage];

— Inspection of Building Automation, Controls and Technical Building Management — Part 2:

Accompanying prEN 16946-1:2015 Modules M10-11 [the present Technical Report; currently at

Voting stage].
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Introduction

The CENSE project, the discussion between CEN and the Concerted action highlighted the high page

count of the entire package due to a lot of “textbook” information. This resulted in flooding and

confusing the normative text.

A huge amount of informative contents shall indeed be recorded and available for users to properly

understand, apply and nationally adapt the EPB standards.

The detailed technical rules CEN/TS 16629 ask for a clear separation between normative and

informative contents:

— to avoid flooding and confusing the actual normative part with informative content;

— to reduce the page count of the actual standard;
— to facilitate understanding of the package.

Therefore each EPB standard shall be accompanied by an informative technical report, like this one,

where all informative content is collected.

Table 1 shows the relative position of this standard within the EN EPB set of standards.

Table 1 — Position of this TR within the EPB set of standards
Over-arching Building Technical Building System
(as such)
sub1 M1 M2 M3 M4 M5 M6 M7 M8 M9 M10 M11
1 General General General
Common
terms and
Building
2 definitions; Needs
Energy Needs
symbols, units
and subscripts
(Free) Indoor
Maximum
Conditions
3 Application Load and
without
Power
Systems
Ways to Ways to Ways to
Express Express Express
Energy Energy Energy
Performance Performance Performance
Building
Heat Transfer
Functions and Emission and
5 by
Building control
Transmission
Boundaries
Heat Transfer
Building
Distribution
6 by Infiltration
Occupancy
and control
and Ventilation
and Operating
Submodule
Descriptions
Descriptions
Descriptions
Heating
Cooling
Ventilation
Humidification
Dehumidification
Domestic Hot waters
Lighting
Building automation
and control
PV, wind, ..
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Over-arching Building Technical Building System
(as such)
sub1 M1 M2 M3 M4 M5 M6 M7 M8 M9 M10 M11
Conditions
Aggregation of
Energy
Internal Heat Storage and
7 Services and
Gains control
Energy
Carriers
Building Solar Heat Generation
Partitioning Gains and control
Load
Calculated Building
dispatching
9 Energy Dynamics
and operating
Performance (thermal mass)
conditions
Measured Measured Measured
10 Energy Energy Energy
Performance Performance Performance
11 Inspection Inspection Inspection x
Ways to
Express
12 BMS
Indoor
Comfort
External
13 Environment
Conditions
Economic
Calculation
Submodule
Descriptions
Descriptions
Descriptions
Heating
Cooling
Ventilation
Humidification
Dehumidification
Domestic Hot waters
Lighting
Building automation
and control
PV, wind, ..
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1 Scope

This Technical Report refers to prEN 16946-1, Inspection of Building Automation, Controls and Technical

Building Management — Module M10-11.

It contains information to support the correct understanding, use and national adaption of standard

prEN 16946-1:2015.
This Technical Report does not contain any normative provision.
2 Normative references

The following documents, in whole or in part, are normatively referenced in this document and are

indispensable for its application. For dated references, only the edition cited applies. For undated

references, the latest edition of the referenced document (including any amendments) applies.

prEN 16946-1:2015, Inspection of Building Automation, Controls and Technical Building Management —

Module M10-11

prEN 15232-1:2015, Energy performance of buildings — Part 1: Impact of Building Automation, Controls

and Building Management — Modules M10-4,5,6,7,8,9,10

prEN ISO 52000-1:2015, Energy performance of buildings — Overarching EPB assessment — Part 1:

General framework and procedures (ISO/DIS 52000-1:2015)

prCEN ISO/TR 52000-2:2014, Energy Performance of buildings — Module M1-x — Accompanying

Technical Report on draft Overarching standard EPB

EN ISO 7345:1995, Thermal insulation - Physical quantities and definitions (ISO 7345:1987)

3 Terms and definitions

For the purposes of this document, the terms and definitions given in EN ISO 7345:1995,

prEN ISO 52000-1:2015 and prEN 16946-1:2015 (the accompanied EPB standard) apply.

4 BAC audit methodology
4.1 Introduction

Building Automation and Controls including Technical Building Management (BAC) contribute to the

performance of buildings. BAC performance has a tendency to decline over time if not actively checked,

maintained and adapted to the actual use of the building (independent of the building type). This

performance depends on a number of factors. Some of the factors are:
— building / space usage changes
— equipment maintenance and re-commissioning
— manual interventions and missing “back to “normal” change
— manual set point adjustments and back to “normal” procedure

This technical recommendation describes a methodology to audit “BAC” in any state of its

implementation in a building.
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An inspection shall:
— hold all important data for a specific BAC
— keep track of the inspected BAC portion and its model data
— produces a report (e.g. on paper and/or electronically)
— acts as base for improvement measures determination
4.2 Energy flow and mapping of functionality groups of EN 15232
4.2.1 General
Key

The numbers in the boxes are referring the numbers in the functions in prEN 15232-1:2015, Table 4

The different colours are to separate the various flows. Heating: red; cooling: blue; air flow: yellow

Figure 1 — Principle functions being addressed in prEN 15232-1:2015
4.2.2 Explanation of graphic

Energy flow is indicated by lines whereas equipment and its control logic is represented by boxes. The

numbers are referring to the (controls) functional groups in prEN 16946-1:2015, Table 1. Identifying

the energy flows in the technical systems is important because efficient functions deliver audit result

contributions among the entire energy flow – of that particular instance. The colours indicate the

various energy carrier types (e.g. warm water, cold water, air).

The graphic might imply that all systems shall be present to perform an audit. This is not the case,

Systems are audited according to their existence and functions implemented whereas non existing

equipment does not need to be mentioned. Logic shall identify non-existing equipment and exclude it

from the evaluation while applying a correct weighting.
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4.3 Functionality Description

The functionality of BAC is described in prCEN ISO/TR 52000-2:2014. The generic terms shall be

applied as most appropriate since the description is kept at high level to be technology independent.

4.4 Implementation of Inspection Procedures
4.5 Scope
The scope of the audit includes controls functions for:
— Generation of heating and cooling
— Ventilation
— Lighting
— Blinds (Sunlight protection)
— Domestic Hot Water
— Technical Building Management
— Other systems as defined in the implementation guidelines
5 Classification Method
5.1 Purpose of Classification

The main purpose of the classification is to establish a relationship between a set of functions and the

capability of energy efficiency for the installed and working BAC functions with its weighted influence.

5.2 Classification using Points

A classification that applies the efficiency classes according to the EN Standard would not necessarily

allow differentiating the result in a way to use it for e.g. improvement recommendations. A simple

method to stretch the result among e.g. a normalized scale from 0 to 100 shall serve the purpose. Other

scales might apply accordingly. In this document the scale of 0 to 100 shall be used as example.

Interpreting an audit result using the scale would give a simple analysis method: More points lead to a

better efficiency of the BAC analysed.
5.3 Classification influence factors

The document prEN 16946-1:2015 implies a number of influence factors that need to take into account

while assessing a BAC. The factors are:
— Building type (e.g. office building)
— Weighting factors of the services among the building services
— Applicable space regarding e.g. emission functions
— Energy generation and supply functions supplying above space
— Desired usage time of above space
— Schedules of equipment
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5.4 EN 15232 Classes

The standard assigns efficiency classes per functional group in its associated TR. It might be useful –

depending on the implementation of a specific classification system – to determine the EN 15232

classes as well however this can only be done on a per functional group basis.

With a complex mix of functionality within the same application a weighted point’s value is calculated.

The points relate back to EN 15232 functions and are converted to A/B/C/D. This is calculated in such a

way that to reach an A, the point score shall be larger than the average of points for A and B, i.e. higher

than 2,5, to reach a B it shall be higher than 1,5, etc.

According to the rules of EN 15232 to achieve an A, all applications (groups of functions), e.g. 1.1, 1.2,

1.3 etc., shall be A. So the worst scoring group of functions decides the final classification according to

A/B/C/D.

However there are some rules included in EN 15232:2012 that allow for missing functionality and

functionality that has no substantial impact (<5 %) within the kind of energy used for Heating, Cooling,

Ventilation, DHW, Lighting or Blinds. These rules are taken into consideration when calculating the final

assessment results.
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Annex A
(informative)
Example of an inspection system (available through eu.bac.org)
A.1 Introduction

The check-list is a Microsoft Excel document to be used by inspectors when performing an audit in a

building. The latest version is available from the eu.bac website: system.eubac.org.

The document is organized in several sheets in separate tabs:

— The first SUMMARY tab is used to record basic building information and to present the summary

result. It is also where the exception rule of EN 15232 (<5 %) may be input.

— Six tabs are used for the main recording of information from the Building Automation and Control

System: Rooms, AHUs, Heating, Cooling, DHW and TBM.

— The Notes tab should be used to record observations and motivations for specific selections made

during the audit.

— The Guidelines tab contains recommendations and advice for the auditor on filling out the

information in the different other tabs.

— The Energy Flow tab includes a model explaining the relationship between the technical systems

and the different sections of EN 15232.

— The DETAILS tab is used for calculations one level below the SUMMARY, and can be used to better

understand the results.

— The Type tab is listing importance factors used for evaluating different kinds of buildings: Office,

Data Center, Education, Hospital, Hotel, Retail, Restaurant and Apartment building.

— The Language tab contains all the wording in different languages. Currently English, German and

French are fully implemented.
— The last tab, Change log, lists the changes implemented in each new version.
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Figure A.1 — eu.bac system inspection check list

Each room/space, AHU, heating distribution network, heating plant, etc. should be recorded separately

on one line in the respective sheets/tabs. However, if several rooms/spaces, AHUs, etc. have identical

sizes, equipment and control functionality, they may be gathered in one line. It should be noted though,

that too much grouping will make the follow up of KPIs (see below) more difficult.

The information gathering sheets have space available for basic information about the room/space,

AHU, etc., and all the different functionality options for each application mentioned in EN 15232:2012.

The eu.bac Technical Recommendations (TR) describes these in more detail to help the selection of the

right choice and advises how to check that the functionality is available in the building installation. In

addition there are extended functionality options to record. These are also described in the TR.

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For each application to be recorded in the check-list there is also Key Performance Indicators (KPIs)

defined. If available from the operational BACS these wi
...

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