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BIM-MEPAUS MODELS

Damper Specification

Issued By: BIM-MEPAUS

30 Cromwell Street, Burwood 3205 VIC Australia

Revision: Initial Release

Date April 2016

BIM-MEPAUS


BIM-MEPAUS April 2016

Acknowledgements

BIM-MEPAUS greatly acknowledges the contributions of the following organisations to this specification:

• Australian Chamber of Commerce and

Industry.

• A.G. Coombs Pty Ltd

• A.G. O’Connor Pty. Ltd

• Celmec Pty Ltd

• D&E Air Conditioning Pty Ltd

• DCM Services Pty Ltd

• Ductware Pty Ltd

• Holyoake Air Management Solutions

• Watson Fitzgerald & Associates Pty Ltd

Formatting conventions

In addition to standard text formatting for section and clause headings, table headings, etc the table below shows

other text formats that are used in BIM-MEPAUS standards and reference documents and their application:

Text Type Example Indicates

Normal italicized text BIM-MEPAUS Specification The name of a specific referenced document or

standard.

Bold italicised text BIM Execution Plan The generic title for a type of Document.

Grey bold text Cross Reference A cross reference to a Section, Clauses or tables,

etc that can be found in this document.

Dark red text LOD A term or abbreviation that is defined in the BIM-

MEPAUS website glossary under Practices

Blue text www.bimmepaus.com.au Hyperlink / weblink

Blue italicised text Explanatory notes Explanatory notes are provided in the document

explaining the reasoning behind the decisions

incorporated within the naming and measurement

systems.

Green text Future Develop This indicates sections or requirements which are

still under development but planned to be included

within BIM-MEPAUS.

Keeping BIM-MEPAUS Up-to-date

BIM-MEPAUS specifications, templates and content are regularly updated to reflect changes in legislation,

technology and industry practice. Feedback and suggestions in relation to the standards via the BIM-MEPAUS

website are welcome. Updates are managed and delivered through the BIM-MEPAUS website to registered BIM-

MEPAUS users.

Liability Disclaimer

BIM-MEPAUS makes no warranty, expressed or implied, including but not limited to any implied warranties of

merchantability and fitness for a particular purpose, nor assumes any legal liability or responsibility for the accuracy,

completeness, or usefulness of the information in this document.

In no event shall BIM-MEPAUS or its agents be liable for damages or losses resulting from your use of, or reliance

on the information provided in this document.

COPYRIGHT © BIM-MEPAUS All rights reserved.

BIM-MEPAUS



Table of Contents

1 INTRODUCTION .............................................................................................................. 4

1.1 Scope ........................................................................................................................................................ 4

1.2 References ................................................................................................................................................ 4

1.3 Objectives .................................................................................................................................................. 4

1.4 Model Classification ................................................................................................................................... 4

2 MODEL WORKFLOW ...................................................................................................... 5

2.1 Design Model ............................................................................................................................................ 5

2.2 Construction Model .................................................................................................................................... 5

2.3 Commissioned As-Built Model ................................................................................................................... 5

3 REFERENCED STANDARDS .......................................................................................... 6

4 DAMPER SPECIFICATION .............................................................................................. 7

4.1 Damper Classification ................................................................................................................................ 7

4.2 General Control Dampers .......................................................................................................................... 7

4.3 Smoke dampers ........................................................................................................................................ 8

4.4 Fire dampers ............................................................................................................................................. 8

5 REVIT FUNCTIONALITY ................................................................................................10

5.1 Categories ............................................................................................................................................... 10

5.2 Functional type and subtype .................................................................................................................... 10

5.3 Connector Settings .................................................................................................................................. 10

5.4 Naming Convention ................................................................................................................................. 10

6 MODEL GEOMETRY & REPRESENTATION .................................................................11

6.1 Standard BIM-MEPAUS View Representations ......................................................................................... 11

6.2 Fire smoke damper motor locations ........................................................................................................ 12

6.3 General usability of Damper Design Content .......................................................................................... 12

7 PARAMETER SCHEDULES ...........................................................................................13

7.1 Identity Schedule ................................................................................................................................... 13

7.2 BIM Classification Schedule ................................................................................................................. 14

7.3 Performance/Quality Schedule............................................................................................................. 15

7.4 Manufacturer’s Schedule ...................................................................................................................... 16

7.5 Commissioning Schedule ..................................................................................................................... 16

7.6 Completion Schedule ............................................................................................................................ 17

7.7 Generic Design Schedule ..................................................................................................................... 17

7.8 MCM Schedule ....................................................................................................................................... 19

BIM-MEPAUS



1 INTRODUCTION

1.1 Scope

This document sets out the BIM-MEPAUS specification for the following ductwork dampers:

• Control Damper

− Volume control

− Motorised volume control

− Non return

− Barometric

− Air damper

− Air damper – smoke exhaust

− Smoke dampers

• Fire dampers

• Fire - smoke dampers.

Air dampers required to operate in order to provide AS1668.1 smoke zone pressure control are fitted with fail safe

mechanisms to achieve the required operating position in fire mode.

The following dampers are not included within the scope of this specification:

• Venturi pressure control dampers

• Duct mounted accessory dampers including spigot and single blade dampers

• Grille dampers

1.2 References

This specification should be read in conjunction with the following specifications and documents:

• BIM-MEPAUS Rigid Ductwork Specification – this specification specifies the requirements for rigid

rectangular and round and oval ductwork for air handling systems.

• BIM-MEPAUS Airside Systems, Plant and Equipment Schedule – this Excel based schedule provides

the complete listing of ductwork systems, plant and equipment names as well as designation of ductwork

system colours.

• BIM-MEPAUS Master Shared Parameter Schedule – this document provides the reference for all shared

parameter names used within the BIM-MEPAUS IFM and MCM models – the Excel formatted schedule

provides the Revit classification and GUID for each parameter.

These documents can be accessed through the BIM-MEPAUS website.

1.3 Objectives

Benefits sought through the development and implementation of the specification include:

• A structured approach to the specification and modelling of dampers;

• Reliable and accurate Design-to-Fabrication workflows; and

• Industry standardization delivering improved supply chain efficiency and reduced project costs and risks.

1.4 Model Classification

Dampers covered by this standard are classified as equipment on the basis they are commissionable and/or form

essential safety measure equipment requiring regular inspection and testing

BIM-MEPAUS



2 MODEL WORKFLOW

2.1 Design Model

BIM-MEPAUS generic design content allows designers to model and schedule dampers needed to achieve system:

• flow and air distribution control

• AS 1668 zone pressure control

• smoke separation and control

• fire compartment separation.

The BIM-MEPAUS generic design models have the required shared parameters needed to schedule the damper

functional and performance requirements to support efficient tender take-off and procurement.

Design firms should pre-populate the damper family shared parameters to match their design quality specification

to reduce repetitive data entry requirements. This limits subsequent scheduling to that required to instance based

parameters.

The intention is that all damper parameters would reside in the model rather than an off model equipment scheduling

database as the majority of damper scheduling is expected to happen within the modelling environment.

Fire and fire/smoke dampers have dedicated BIM-MEPAUS generic design models in order to address their specific

construction, installation and configuration requirements.

2.2 Construction Model

The virtual build develops the design model into the LOD 400 construction model and typically involves changing

out the design damper content with manufacturer certified content. Where the manufacturer’s dampers are BIM-

MEPAUS compliant this should be a relatively straight forward task.

Manufacturer’s dampers are preferably generated from the BIM-MEPAUS industry foundation models and have the

design parameters together with the manufacturer specific shared parameters.

BIM-MEPAUS certified manufacturer models are fully interchangeable with the generic design models and provide:

• Accurate geometry

• Performance data

• Full BIM-MEPAUS Revit operability.

The manufacturer’s models provide information or links to data required for technical approval as well as installation

instructions.

It is expected that the manufacturer’s data will be delivered through completion of Excel tables delivered to the

contractor who can push this data to the relevant damper in the Revit Construction Model.

The construction model will allow a number of additional checks to be completed including:

• System pressure loss

• Installation requirements

• Failure position

• Fire Damper type certifications.

2.3 Commissioned As-Built Model

The commissioned as-built model will normally comprise the construction model updated to reflect any changes

made during the field installation and the baseline data required for annual testing and performance checks.

BIM-MEPAUS



3 REFERENCED STANDARDS

There are a number of requirements in the National Construction Code as well as Australian Standards that relate

to damper design, installation and on-going maintenance and inspection.

Codes and Standards referenced in this specification include:

General Requirements

NCC/ BCA : National Construction Code / Building Code of Australia

Ductwork

AS 4254.2 - 2012 : Ductwork for air-handling systems in buildings - Part 2: Rigid duct

AS 1668.1 -2015 : The use of ventilation and airconditioning in buildings – Part 1: Fire and Smoke

Control in multi-compartment buildings

AS 1668.2 -2012 : The use of ventilation and airconditioning in buildings – Part 2: Mechanical

Ventilation in buildings

Fire Dampers

AS/NZS 1682.1- 2015 : Fire, smoke and air dampers - Specification

AS/NZS 1682.2- 2015 : Fire, smoke and air dampers – Installation.

Maintenance

AS 1851 – 2012 : Routine service of fire protection systems and equipment

Commentary: The requirements in relation to fire, smoke and air dampers have been modified and clarified in the

2015 edition of AS/NZS 1682. This specification incorporates the revisions under the above standards.

This specification supports the progressive development and handover of baseline documentation as specified in

AS/NZS 1682. Clause 7.5 Documentation and baseline data.

BIM-MEPAUS



4 DAMPER SPECIFICATION

4.1 Damper Classification

The principle sub-classifications BIM-MEPAUS Designation Code

General Control Dampers

Volume Control VCD

Motorised Volume Control MVCD

Non Return NRD

Barometric BMD

Air damper AD

Air damper –smoke exhaust ADSE

Smoke damper SD

Fire dampers FD

Fire-smoke dampers FSD

4.2 General Control Dampers

General control dampers comprise a standard frame geometry that is then scheduled to specify the damper type,

operation and quality requirements.

Sizing

Sizing is based on sheet metal sizes.

Commentary: Dampers mounted in internally lined duct are generally sized at sheet metal size to avoid the

requirement for a step down frame each side of the damper.

Dampers can be fabricated to any size however the standard module maximum width is 1200mm

and height 2000m

Minimum damper size is typically 100mmx100mm.

Frame Material, Blade Material and Frame Material Selection

The default material is aluminum with alternative material types including galvanized and stainless steel.

Blade Types

Two standard blade types are available – airfoil and standard profile.

Connectors

Connectors are based on 35 TDF frame connections.

Seal Selection

A number of standard seal types are available

• Standard Seals Standard tip seals

• CleanAirSeals Standard tip seals and end seals

• HighTempSeals High temperature blade and end seals used for smoke dampers and air

dampers located in smoke exhaust systems

Commentary: High temperature seals are typically red, whilst standard and clean air seals are typically black.

BIM-MEPAUS



Pressure Loss

Damper pressure loss is highly dependent on both the size and aspect ratio and hence the use of a fitting KT is

generally not possible.

Commentary: Pressure losses for aspect ratios that vary significantly from 1:1 should be checked carefully.

Motors

Damper motors have two standard configuration options:

• 2 Position / Modulating

• Fail safe operation.

The fail safe operation is specified as either:

• FSO – fail safe open, or

• FSC - fail safe closed.

Commentary: Fail safe operation is generally achieved via a spring return mechanism in the motor that drives

the damper to a fixed position on loss of power. The same motor is used for both FSO and FSC

with the required operation achieved through the motor orientation.

Air damper fail-safe positions required are specified in AS 1668.1.

The industry standard power supply for all damper control motors is 24V.

The number of motors fitted to the damper and the actuator configuration will be determined by

the damper size with a single damper motor typically able to operate up to 3m2.

4.3 Smoke dampers

Smoke dampers are intended to minimise the risk of smoke migration from one smoke compartment to another via

ductwork or airway openings in smoke barriers and are similar to high temperature air dampers.

4.4 Fire dampers

Fire dampers are generally more complex than general dampers with regard to their specification and installation

requirements.

Fire damper types

Fire dampers types commonly used in Australia are:

Mechanical

• Curtain fire dampers comprising a steel frame housing and an interlocking stack of steel blades that unfold

to form a sealed curtain across the opening when released. For vertical applications the curtain closes

under gravity whilst with horizontal fire dampers the curtain is closed using springs.

• Single blade fire dampers comprising a steel frame housing a single steel blade that closes to seal the

opening when released. The blade closes under the action of gravity or springs.

• Multi-blade fire damper comprising a steel frame with a set of dampers that swing to close the opening

when released.

Intumescent

• Intumescent Fire Dampers comprising a steel frame housing parallel slats of Intumescent material that

expand to form a seal across the opening when affected by fire.

BIM-MEPAUS



Fire resistance

The fire resistance for vertical fire dampers is typically required to be not less than the FRL integrity rating of the

barrier opening being protected.

For horizontal dampers an insulation rating must also be achieved – which is typically achieved through the use of

insulated ductwork adjacent to the damper.

Fire damper installation

Fire dampers are typically certified for one or more specific installation arrangements

• Masonry – vertical

• Masonry - horizontal

• Dry Stud wall – vertical

• Dry Stud wall - horizontal

• Proprietary Composite Wall- vertical.

Dampers must be installed to the tested arrangement.

Damper dimensions

Dampers are typically constructed to a maximum size of 4800x4800mm in modules not greater than 1200x1200mm.

Dampers typically have a minimum depth of 76mm for mechanical fire dampers and 48mm for intumescent fire

dampers. .

Damper expansion allowance

The Fire damper creates a penetration that includes for an expansion allowance required to provide for the damper

expansion when exposed to extreme heat – the expansion gap is defined in AS 1682.2: 2015 as 1.01 x size of fire

damper casing + 10mm.

The gap must be filled with either a blanket or spacer brackets.

Connectors

Connectors are based on:

• 35 TDF frame connections

• Slip-frames

• Spigot rectangular to round connector

• Grille connector.

BIM-MEPAUS



5 REVIT FUNCTIONALITY

5.1 Categories

Category: Duct Accessory

5.2 Functional type and subtype

Part Type: Damper

5.3 Connector Settings

Connector Setting – Inlet & Outlet

Flow

Configuration

Flow

Direction

System

Classification

Loss

Method

Flow Height Width

Calculated Bidirectional Global Not Defined “AirFlow”

Shared

Parameter

“Height”

Shared

Parameter

“Width”

Shared

Parameter

5.4 Naming Convention

The damper family naming convention is as follows

Format:

<Functional Type> _ <Subtype> _ <Manufacture>

Example:

Generic Design Model (Industry Foundation Model)

Damper_MVCD_BMA

Manufacturer Model

Damper_MVCD_”Manufacturer”

BIM-MEPAUS



6 MODEL GEOMETRY & REPRESENTATION

6.1 Standard BIM-MEPAUS view representations

The model geometry can be viewed at a number of levels of detail:

Generally course views are suitable for schematic and single line drawings, design level drawings in medium view

and fine represents shop level detailing and geometry.

AD – Course View AD – Medium View AD Fine View

ADSE – Course View ADSE – Medium View ADSE – Fine View

BMD – Course View BMD – Medium View BMD – Fine View

FD – Course View FD – Medium View FD – Fine View

FSD – Course View FSD – Medium View FSD – Fine View

MVCD – Course View MVCD – Medium View MVCD – Fine View

NRD – Course View NRD – Medium View NRD – Fine View

SD – Course View SD – Medium View SD – Fine View

VCD – Course View VCD – Medium View VCD – Fine View

BIM-MEPAUS



6.2 Damper model insertion

With the exception of the Fire-Smoke Dampers (FSD) as noted below, families and actuators can be flipped or

rotated in the model as required, users should always note manufacturer’s constraints with respect to actuator

positions during LOD400 shop detailing.

6.3 Fire-smoke damper motor locations

CRITICAL MODELLING NOTE: If the family is rotated, flipped or mirrored the user must ensure the motor location

still represents the true location – Using these modify controls is likely to cause incorrect scheduling.

BIM-MEPAUS



7 PARAMETER SCHEDULES

The schedule structure was developed to meet the needs of the BIM-MEPAUS integrated project delivery workflow

as well as support asset life cycle requirements. All Plant and Equipment Schedules have the following Sections:

• Identity

• BIM Classification

• Performance / Quality

• Manufacturer

• Commissioning

• Completion

This structure defines the Revit Share Parameter Grouping within the families. The Groupings are intended to

enable quick location of the required data at each stage of the model development from LOD 100 to LOD 500 and

then through its life cycle management.

Refer to the Industry Foundation Models and Shared Parameter Guidelines published via the BIM-MEPAUS website

which explain the structure, purpose and completion of the schedules in more detail.

7.1 Identity Schedule

Figure 8.1.1 Identity Schedule

Design Parameters Unit / Type Sample Value

ComponentName Text SD-6-2

SystemServed Text BIM-MEPAUS System Name

Location Text Level 6 ICA

ComponentStatus Text CAB

MCM Parameters Unit /Type Sample Value

Manufacturer Text Manufacturer Name

Model Text Model Name

ProductCode Text Product Code

URL Text Hyperlink to product page

FM Parameters Unit /Type Sample Value

AssetIdentifier Text SD-6-2

Barcode Text Barcode Number

RFID Text RFID Tag Number

BIM-MEPAUS



7.2 BIM Classification Schedule

The BIM Classification Codes are based on the OmniClass Construction Classification System (known as

OmniClass™ or OCCS) and Natspec.

Fig 8.2.1 BIM Classification Code Schedule

BIM Classification Code

Omniclass - Products 23-33 29 23

Uniformat II - Elements 21-04 30 60 10

NATSPEC – Work Results 0714

Model Specification BMA

Model Version 2016-01

All codes are fixed for Dampers and incorporated in both the design and manufacturer’s models.

Detailed definition of Products and Elements can be found at http://www.omniclass.org/tables.asp ; with the

following relevant codes:

Omniclass Products – Table 23

• Dampers for Air Ductwork 23.75.70.11.14.14 (AD,ADSE,BMD,MVCD,NRD,SD,VCD)

• Fire Dampers: 23.60.70.11.11 (FD)

• Smoke Dampers: 23.60.70.14.11 (FSD)

Uniformat Classification/Assembly Code

• Air System Testing & Balancing D3070200 (All Dampers Except NRD)

• General Construction Items (HVAC) D3090700 (NRD)

NATspec’s Work Section classification system can be found at

www.natspec.com.au/Products_Services/listallworksection.asp .

BIM-MEPAUS



7.3 Performance/Quality Schedule

The performance and quality schedule details the specified requirements for the damper schedule is generally

considered equivalent to LOD 300 – LOD 375.

The schedule brings together a number of typical specification section requirements including those related design,

installation and certification as well as the provision of the required motor dampers.

The Manufacturer’s certified model may overwrite some sections of the schedule replacing the design performance

requirements with manufacturer’s performance data.

Figure 7.3.1 Performance and Quality Schedule

Damper Details

Parameter Unit/Type Sample Value

DamperType Text SD

Width mm 500

Depth mm 500

Length mm 155

Diameter mm -

C1 Text TDF-35

C2 Text TDF-35

DamperMaterial Text Aluminum

BladeProfileType Text Airfoil

Airflow L/s 1500

PressureDrop Pa 20

DamperSealType Text High Temperature

RequiredFireResistantLevel Text -

FireResistantBarrierType Text -

FireResistantBarrierThickness mm 110

FailSafeMode Text FSC

DamperControl Text 2-Position

DamperHanding Text LHS

BIM-MEPAUS



7.4 Manufacturer’s Schedule

Manufacturer’s schedules are completed by suppliers to confirm the detailed performance, quality and configuration

selections.

Figure 7.4.1 Manufacturer’s Schedule

Damper Details – Fire Damper Only


FireDamperType Text Mechanical

FireDamperMechanismType Text Curtain

TestCertificate Text ADTA 539493

TestCertificateInstallationType Text Vertical Masonry

TestCertficateFRL Text 0/120/0

TestCertificateMaximumWidth mm 4800

TestCertificateMaximumHeight mm 4800

TestCertificateLeakRate L/m2/s

FireDamperBarrierMaximumDepth mm 300

FireDamperTestStandard Text AS1682.1:1990

InstallationSpacerType Text Metal Spring

7.5 Commissioning Schedule

Commissioning schedules are based on NEBB and relevant Australian Standards and completed by the installer’s

commissioning team.

CommissioningDate Text 2016-02-28

CommissioningTechnician Text Commissioning Technician’s Name

BIM-MEPAUS



7.6 Completion Schedule

The completion schedule provides key asset and facility maintenance data and is common for the BIM-MEPAUS

plant and equipment families:

Figure 7.6.1 – Completion Schedule


Designer Text Designer Name

Installer Text Installer Name

Client Text Client Name

InstallationDate Text 2013-09-31

WarrantyStartDate Text 2014-03-31

WarrantyDurationMonths Integer 12

ExpectedServiceLifeYears Integer 25

7.7 Generic Design Schedule

The following schedule defines the Generic Design shared parameter schedule including default values for the

generic design model data schedule. The schedule is intended to be completed by the Designer to the extent

required with further development required by the constructor.

BIM-MEPAUS



Generic Design Schedule

The following defines the generic design damper model shared parameter schedule for a fire damper


ComponentName Text FD-6-2

SystemServed Text Supply Air

Location Text Level 6 NorthWest Riser


DamperType Text FD - Mechanical

Width mm 500

Depth mm 500

Length mm 155

Diameter mm -

C1 Text TDF-35

C2 Text TDF-35

DamperMaterial Text Galvanised

BladeProfileType Text Standard Profile

PressureDrop Pa 20

DamperSealType Text Non

RequiredFireResistantLevel Text 0/120/0-

FireResistantBarrierType Text Masonry-

FireResistantBarrierThickness mm 110

BIM-MEPAUS



7.8 MCM Schedule

The following schedule defines the MCM shared parameter schedule and default values that form the basis of the


ComponentName Text FD-6-2

SystemServed Text Supply Air

Location Text Level 6 NorthWest Riser


Manufacturer Text Manufacturer Name

Model Text Model Name

ProductCode Text Product Code

URL Text Hyperlink to product page

AssetIdentifier Text BLD 212 6-2

Barcode Text Barcode Number

RFID Text RFID Tag Number

DamperType Text FD

Width mm 500

Depth mm 500

Length mm 155

Diameter mm -

C1 Text TDF-35 – Fusible

C2 Text TDF-35 - Fusible

DamperMaterial Text Galvanised

BladeProfileType Text Standard Profile

PressureDrop Pa 20

BIM-MEPAUS



FireDamperType Text Mechanical

TestCertificate Text ADTA 539493

TestCertificateInstallationType Text Vertical Masonry

TestCertficateFRL Text 0/120/0

TestCertificateMaximumWidth mm 4800

TestCertificateMaximumHeight mm 4800

TestCertificateLeakRate L/m2/s

FireDamperBarrierMaximumDepth mm 300

FireDamperMechanismType Text Curtain

FireDamperTestStandard Text AS1682.1:1990

InstallationSpacerType Text Metal Spring

CommissioningDate Text 2016-02-28

CommissioningTechnician Text Commissioning Technician’s Name

Designer Text Designer Name

Installer Text Installer Name

Client Text Client Name

InstallationDate Text 2013-09-31

WarrantyStartDate Text 2014-03-31

WarrantyDurationMonths Integer 12

ExpectedServiceLifeYears Integer 25

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