The document discusses Revit MEP, a software used to design mechanical, electrical, and plumbing (MEP) systems in buildings. It describes the basic functions of Revit MEP in controlling HVAC, electrical, and plumbing elements. It also provides an overview of key concepts in MEP design like views, scales, orthographic projections, and BIM (Building Information Modeling). Finally, it lists some common elements, tools, and processes used in Revit MEP like duct systems, pipe sizing, insulation, fittings, load analysis, and more.

1. Revit MEP
M.R.Hariharan

2. MEP
It Controls the following elements in the building..
M = Mechanical (Air Based) = HVAC(Heat Ventilation & Air
conditioning)
E = Electrical (Current Based) = Power Circuit, Lighting Circuit, CCTV
Cameras, Fire Alarm System.
P = Plumbing (Water Based) = Domestic hot Water Supply , Domestic
Cold Water Supply, Fire Protection System, Sanitary System.

3. Basics of Engineering Graphics
 Views
Scale
Projection(Widely used in Part, Assembly Drawing of Mechanical
parts)

4. Views
2D View - Top, Bottom, Right, Left, front, Back.(These are the names
not used in Architectural & MEP Drawings)
Top = Plan view,
Right Side Elevation = East,
Left Side Elevation = West,
Front Elevation = South,
Back Elevation = North
3D View – Isometric View, Trimetric View, Dimetric View, Perspective
View.

5. Orthographic Views

6. Isometric View

7. Isometric , Trimetric , Dimetric Projection

8. Isometric , Trimetric , Dimetric Projection

9. 2D views in Architectural drawing

10. Perspective Views (Camera View or Render
view)

11. Section Views

12. Callout View (Detail View)

13. Schematic View

14. What is the use of Scale?
1 : 100
100 : 1
What it means?

15. Scale

16. First Angle & Third angle Orthographic
Projection

17. Paper Size

18. Drawing Sheets

19. Rejected Designs of Eiffel Tower

20. Life Without Cad

21. MEP Spaces

22. Levels

23. ASHRAE

24. Revit MEP
Revit is the software We are used to design a MEP Model. Revit is the
4D BIM software
Revit Architecture – Create a 3d Elevation of a Building
Revit Structure – Structural Design and Analysis
Revit MEP – Design Duct System, Piping, wiring… etc in Building

25. BIM(Building Information Modelling)
Building Information Modelling (BIM) is an intelligent 3D model-
based process that gives architecture, engineering, and construction
(AEC) professionals the insight and tools to more efficiently plan, design,
construct, and manage buildings and infrastructure.

26. Revit History
Charles River Software was founded on October 31, 1997
 key developers of PTC's Pro/Engineer software for mechanical design, with
the intent of bringing the power of parametric modelling to the building
industry
The company was renamed Revit Technology Corporation in January 2000.
Revit version 1.0 was released on April 5, 2000
Autodesk, best known for its AutoCAD line of products, purchased the
Massachusetts-based Revit Technology Corporation for US$133 million in
2002
Autodesk has released several versions of Revit since 2004. 2005 Revit
Structure was introduced, then in 2006 Revit MEP. After the 2006
release Revit Building was renamed Revit Architecture
Revit 2013 the different disciplines have been rolled into one product,
simply called Revit.
Latest Version is Revit 2021.

27. Revit File Types
Template Files - .rte
Project Files - .rvt
Family Files - .rfa
Family Template Files - .rft

28. Element Types
• Model Element
Host Element (ex: Wall, Duct)
Component Element (ex: Fan, Switches)
• Annotation Element (ex: Dimension, Text)
• Datum Element (ex: Level, Grid)
• View Element (ex: Types of views)

29. Types of Families
• System Families(Non Loadable Families) - System families create basic
elements Examples : Walls, roofs, floors , Ducts, pipes.
• Component Families(Loadable Families) - Loadable families are
families used to create such as windows, doors, boilers, water
heaters, air handlers, and plumbing fixtures.
• In-Place Families(Draw Families) - In-place elements are unique
elements that you create when you need to create a unique
component that is specific to the current project.

30. Graphical User Interface

31. Class 1
Exploring Revit Workspace
Work With Revit Architecture
Work sharing
Link Revit
Manual Connection
Show Disconnects
System Inspector
Run Interference Check
Heating & Cooling Load Analysis
Delta Supply Air Flow
Automatic or Logical Connection
Duct/Pipe Sizing
Duct Pressure Loss Report
Add Insulation
Add Lining
System Browser
Justification
Inherit Elevation/Size
Duct Fittings , Accessory
Convert to flex Duct
Duct types
Tees & Taps
Mitered & Radius
Flex Duct
Duct Placeholder
VAV Connection
Duct Cost Estimation

32. Designing in Revit MEP
• In 3D offset method(not able to give height)
• In 2D height length is possible

33. Heating and Cooling Load Analysis
• Ton of Refrigeration:
• Amount of heat extracted in a given time from a body.
• The melting of 1 tone of ice from and at 00 C in 24 hours.(Heat Added)
• Heat is Required to be removed to freeze one ton of water from at 00 C in 24 hours.
American unit this is equal to Removal of 200 BTU of Heat per minute. (200 BTU/min)
In S.I. unit its conversion is rounded of to 3.5KJ/s (kw) or 210 kJ/min.
1 btu (British Thermal Units) = 1055.056 joules.
for one Hour = 60 x 200 BTU/min = 12000 BTU/hr.
So, One Ton of Refrigeration = 12000 BTU/hr.

34. Factors affecting the Heating and cooling Load
• Human = Load (Sensible heat, Latent heat) , No. of Person in a room,
Scheduling in percentage.
• Lighting = Load in Watts, Scheduling in percentage.
• Power = Load in Watts, Scheduling in percentage.
• Building Envelope = Wall, Window , Door ,Roof.

35. CFM (Cubic Feet per Minute)

36. Building Infiltration Class
Specifies an estimate of outdoor air that enters the building through
leaks in the Building envelope.
• Loose – 0.076 cfm/sqft for tightly constructed walls.
• Medium – 0.038 cfm/sqft for tightly constructed walls.
• Tight – 0.019 cfm/sqft for tightly constructed walls.
• None – Infiltration is excluded from the calculation of loads.

37. HVAC Theory
• HVAC : Heating , Ventilation & Air Conditioning is the technology of indoor and
vehicular Environment . Its goal is to provide thermal comfort and acceptable
indoor air quality.
• Air Conditioning : A system for controlling the humidity ventilation &
temperature in a building, typically to maintain a cool atmosphere in warm
conditions. (or) Air Conditioning is the process of removing heat from space.
According to the arrangement of air conditioning equipment
1. Unitary Air Conditioning System [Room or Window type Air Conditioner]
2. Central Air Conditioning System

38. HVAC Components
• AHU(Air Handling Unit)
• FCU(Fan Coil Unit)
• VAV(Variable Air Volume)
• Fire Damper
• Filter in AHU
• Cooling Coil in AHU
• Heating Coil in AHU
• Insulation
• Lining
• Air Diffuser/Air Terminal
• Chiller
• Boiler
• Blower
• Humidifier

39. AHU Working

40. Hydronic System
• Hydronics (hydro- meaning "water") is the use of liquid water or
gaseous water (steam) or a water solution (usually glycol with water)
as heat-transfer medium in heating and cooling systems
• There are two types of system classification used in Hydronic System.
1.Hydronic Supply
2.Hydronic Return
• There are two types of Hydronics System
1.Cooling System
2.Heating System.

41. System Classification in Hydronics
• Hydronic Supply : It has the ability to transfer the heat.
• Hydronic Return : It needs or does not having the ability to transfer
the heat.
For Example,
• Hydronic Supply in: AHU in
• Hydronic Return out: AHU out
• Hydronic Return in: Chiller in
• Hydronic Supply out: Chiller Out.

42. Cooling System & Heating System
• Chiller is the main component in the Cooling System.
1.Air Cooled Chiller
2.Water Cooled Chiller (Cooling Tower)
3.Absorption Chiller. (Cooling Tower, Boiler)
• Boiler is the main component in the Heating System.

43. Class
• Patch Copy
• View Range
• Positioning
• Shared Co-ordinate
• Link/import Cad
• Keyboard shortcuts
• Parallel pipes
• Fabrication Part
• Export Cad
• Import Units (Importing AutoCAD Files)
• Camera View