autodesk revit naming requirementsdraft nomenclature | 3 omniclass • classification system for the...

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Autodesk Revit© Naming Requirements

USC Nomenclature Guide for the correct naming of Families, Types, Instances, Systems and Zones

12/19/2012

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SOURCESOmniClass Table 23 Products OmniClass Table 21

Elements (Assemblies)U.S. National CAD Standards

Module 05Terms and Abbreviations

Legacy SourceMasterFormat©2004

Legacy SourceUniFormat™ 1992,1998

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OMNICLASS

• Classification system for the construction industry

• Developed via consensus and broad participation from the

construction industry, individuals and organizations

• Uses existing legacy systems like MasterFormat©2004 and

UniFormat™ 1992,1998

• 15 Tables covering everything from facilities to spaces, construction

products, assemblies, phases, organizational roles, tools, disciplines

etc.

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U.S. NATIONAL CAD STANDARDSModule 05 Terms and Abbreviations

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example FAMILY, TYPE & INSTANCE NAMES for VAV BOX with TAG NUMBER “D01”

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FAMILY, TYPE & INSTANCE

Family Name Type Name Instance NameVariable Air Volume

Terminal UnitsVAV Reheat 6” VAV‐D01

Type Description Instance Description

VAV with Reheat Price SDV 6”

VAV Box with Reheat 6” D01

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FAMILY NAME

OmniClass Table 2323‐33 41 17 13

Variable Air Volume Terminal Units

23‐33 41 HVAC Air Terminals23‐ 33 41 17 Terminal Air Units23‐33 41 17 13 Variable Air Volume

Terminal Air Units

Add a further description here as a suffix as needed at your discretion if you need to

differentiate between one family and another that are close in

geometry or function.

As long as the official OmniClassTable 23 name appears at the beginning, what you add after is

acceptable if this extra description is necessary.

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FAMILY NAME


Variable Air Volume Terminal Units

23‐33 41 17 13 Variable Air Volume Terminal Units

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TYPE NAMEVAV Reheat 6”

Brief description denoting size / capacity/type as easily identified

& understood

(description is based on your discretion but should at minimum include sizes or dimensions for example

2’x 2’, 6”, 8” 1.5’ x 3’, 10” etc.)

“Reheat 6” ”

U.S. National CAD Standards“VAV” +

If the abbreviation for a piece of equipment is not listed in the National CAD Standards, use the abbreviation used in your equipment/component schedules instead. For example, a “Fan Powered Box” would be abbreviated as “FPB”, Use abbreviations as universally understood in the industry

1

1

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TYPE DESCRIPTIONVAV with Reheat Price SDV 6”

Extended description denoting manufacturer/model/size / type as easily identified & understood

“with Reheat Price SDV 6” ”

Type Name +

“VAV” +

Inserting this parameter, “Type Description” is a requirement. Filling in the fields, however, is up to your discretion. You may enter an added description here to supplement Type Names for the purpose of clarity or leave it blank.

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2

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INSTANCE NAMEVAV‐D01

ID unique to that componentas identified in the equipment / component

schedules or drawings (IF EXISTS)

For example, Tag Number “D01”

“D01”

U.S. National CAD Standards“VAV”

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3 If the abbreviation for a piece of equipment is not listed in the National CAD Standards, use the abbreviation used in your equipment/component schedules instead. For example, a “Fan Powered Box” would be abbreviated as “FPB”, Use abbreviations as universally understood in the industry

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INSTANCE DESCRIPTIONVAV Box Reheat 6 Inches D01

Extended annotative description denoting type/size/id/location unique to that component

“Reheat 6 Inches D01”+

U.S. National CAD Standards“VAV”

4

Inserting this parameter, “Instance Description” is a requirement. Filling in the fields, however, is up to your discretion. You may enter an added description here to supplement Instance Names for the purpose of clarity or leave it blank.

4

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HOW TO RENAME FAMILIES TYPES INSTANCES

Family Name Variable Air Volume Terminal Units

Directly in theProject Browser

orDirectly in the .rfa Family File

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Type Name VAV Reheat 6 Inches

HOW TO RENAME FAMILIES TYPES INSTANCES

Type DescriptionVAV with Reheat Price SDV 6

Inches

Shared Parameter“Type Name”

Allows for the maintenance of your original office standards while simultaneously meeting USC’s

requirements

Directly in Revit or the Revit Family file

Shared Parameter“Type Description”

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HOW TO RENAME FAMILIES, TYPES, INSTANCES

Instance Name VAV‐D01

Instance DescriptionVAV Reheat 6 Inches D01

Shared Parameter“Instance Name”

Shared Parameter“Instance Description”

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example FAMILY, TYPE & INSTANCE NAMES for a ROUND CONED SUPPLY DIFFUSER Type RC-1

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Family Name Type Name Instance NameSupply Air Ventilation Diffusers Round Coned

SA DIFF Round Coned 24" Face 8 Connection

SA DIFF Type RC‐1


Round Coned Diffuser Supply Air Diffuser Type RC‐1

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example FAMILY, TYPE & INSTANCE NAMES for a STANDARD ROUND VOLUME DAMPER

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Family Name Type Name Instance Nameno tag number needed if not scheduled or

not tagged in drawings

Volume ControlDamper Round

VD Standard RoundSupply

VD RND SPLY


Standard Round Volume Damper on Supply Ducts

Standard Round Volume Damper on

Supply Ducts

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example FAMILY, TYPE & INSTANCE NAMES for MAIN SERVICE TRANSFORMER ‘C’

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Family Name Type Name Instance NameTransformer Liquid Filled Substation

XFMR 500kVA, 4.8 kV –480/277V

XFMR T‐MSC


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example FAMILY, TYPE & INSTANCE NAMES for PANELBOARD 208V

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Family Name Type Name Instance NamePanelboards 208V MLO

SurfacePB 208/120V, 225A PB EL1A


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example FAMILY, TYPE & INSTANCE NAMES for a DUPLEX RECEPTACLE

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Electrical Receptacle Duplex

ELEC RECPT GFCI Duplex ELEC RECPT


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example FAMILY, TYPE & INSTANCE NAMES for a 4” SQUARE 120V JUNCTION BOX

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Electrical Junction Box Loaded

J‐BOX 4" Square 120 J‐BOX


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example FAMILY, TYPE & INSTANCE NAMES for a LOW VOLTAGE LIGHT SWITCH

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Lighting Switches LT SW Low Voltage LT SW


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example FAMILY, TYPE & INSTANCE NAMES for a WALL MOUNTED OCCUPANCY SENSOR

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Occupancy Sensor Wall Low Voltage

OCCUPANCY SNSR Dual Technology

OCCUPANCY SNSR


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example FAMILY, TYPE & INSTANCE NAMES for a 2’ x 2’ Indirect Light Fixture

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Family Name Type Name Instance NameLighting Fixtures 2’ x 2’

IndirectLTNG FIXT 24"(2 Lamp)

277VLTNG FIXT Type D01


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example FAMILY, TYPE & INSTANCE NAMES for a GATE VALVE

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Family Name Type Name Instance NameGate Valve 2‐12 Inches GTV Gate Valve 1" GTV‐40


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example FAMILY, TYPE & INSTANCE NAMES for a WATER CLOSET 1.6gpf

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Family Name Type Name Instance NameWater Closet Flush Valve Floor Mounted

WC 1.6gpf WC Type WC‐1


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example FAMILY, TYPE & INSTANCE NAMES for a STEEL SINGLE FLUSH 12 GLASS PANEL DOOR

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Family Name Type Name Instance NameDoor Steel Single Flush

Glass 12 PanelDR 3‐0x9‐4x1‐3/4 Type J DR 100.B


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example FAMILY, TYPE & INSTANCE NAMES for a SOLID CORE WOOD SINGLE FLUSH DOOR (1hr)

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Family Name Type Name Instance NameDoor Solid Core Wood

Single FlushDR 3‐0x7‐0x1 3/4 60Min

Type ADR S2.1‐A


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example FAMILY, TYPE & INSTANCE NAMES for a STEEL OVERHEAD ROLLING DOOR

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Family Name Type Name Instance NameDoor Steel Overhead

Rolling DR 12‐0x15‐0x3 Type M DR 105.B


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example FAMILY, TYPE & INSTANCE NAMES for a CAST STONE FIXED GLASS WINDOW

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Family Name Type Name Instance NameWindow Cast Stone

Fixed GlassWDW 2'‐10 3/4" x 2'‐6 3/4" Cast Stone Trim

WDW Type J


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SYSTEMSMechanical Supply Air AHU‐D1


HVAC – Ventilation – Supply Air

Abbreviation : U.S. National CAD Standards

Air Handling Unit

+“Supply Air” “AHU”

Identification that further

defines a piece of equipmentfrom others

(usually a tag number or mark

from the schedules)

+ “D1”

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DUCTLESS SYSTEMSMechanical Return Air RG‐1 2nd Floor 214A Office

Ductless return air system consisting of pieces of ductwork and a return air grille marked as “RG‐1”, whose grille is physically located in room 214A Office on the 2nd Floor


HVAC – Ventilation – Return Air

Tag number of the Return Grill “RG‐1”

+“Return Air” “RG‐1”

Floor + USC Official Room Name & Number

+“2nd Floor

214A Office”

Room : 214A Office

RG‐1

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ZONESexample: HVAC Zone associated with VAV Box D01 serving Offices 100,101,102

National CAD StandardNCS 3.1 Module 5 abbreviation for Air

Handling Unit is "VAV"+

Description denoting ‘size/type as easily identified "D01"

VAV‐D01

USC Official Room Names and Numbers for Rooms contained in that Zone

Office "100", "101", "102"Office 100, 101, 102

ZONE NAMEVAV‐D01 Offices 100, 101, 102

VAV‐D01 Offices 100, 101, 102

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