Revit MEP 2012

2012

Autodesk Revit MEP 2012 Guidance Papers A guidance papers discussing the step to be performed by Autodesk Revit MEP 2012 for the HVAC, Plumbing, Fire Protection and Electrical Systems

Eng.George Sobhy Revit MEP 2012 4/25/2012

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Autodesk Autode sk Revit MEP MEP 2012 Common Topics Herein below, the topics that is common between the HVAC,









Revit MEP 2011 Common Issues for Plumbing, Fire Protection, HVAC and Electrical Changing background color from white to black: •

From Revit mep icon (R) at upper left of the screen, select options.

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From graphics tab, under colors, mark invert background color.

To browse for the default Revit mep default template file: •

From Revit mep icon (R) at the upper left of the screen, click options.

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From file locations tab, under default template file, click browse and then browse for the default template file on the hard disk, and then click ok.

To change keyboard shortcuts: •

From Revit mep icon (R) at the upper left of the screen, select options, click user interface tab .

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From configure, under keyboard shortcuts, click customize .

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From keyboard shortcuts window, under filter select the ribbon tab in which the command is located. Select the command you want to change the keyboard shortcut, and then in the new keys, write the shortcut you wish, and then click assign.

To save your own shortcuts: •

Click export and then browse for the location on your hard disk drive.

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Click import if you wish to import the pre saved keyboard shortcuts.

Displaying project units •

From manage ribbon tab , click project units, and modify the units you need.

Attaching a Revit link and preparing both central and local files: •

From insert ribbon, click link Revit, browse for the Revit link on the hard disk, and then from

positioning, select auto – by shared coordinates or auto – origin to origin, and then click open. •

From view ribbon tab, select section , make a section in the part you wish in the Revit link.

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Select the section line and then right click, then select go to view.

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From collaborate ribbon , click copy/monitor and then click select link

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In the drawing area select the Revit link and then select copy.









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From new plans window, select the plans you wish and then click ok.

Preparing both central and local files: •

From collaborate ribbon tab , click worksets, click ok, and then click ok.

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Save the file, till this stage we have prepared the central file.

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Close the file and then reopen from open and make sure that create new local is selected, and now the local file is created.

Note: •

Local file name will be the file name_user name.

To control visibility of the Revit link: •

From view ribbon tab, select visibility/graphics or from the keyboard press VV.

Note: Visibility graphics are adjusted for each level individually. •

Under Revit links tab, under display settings, select custom.

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From basics tab, select custom, and then from linked view, select the level that you had opened, i.e.: if you are opening the ground level, so the linked view shall be the ground level.

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To control visibility of elements in the Revit link, select model categories tab, and mark s how

categories from all disciplines, and then unmark the category you wish to hide in the Revit link. •

If you wish to control the visibility of annotations such as dimensions, wall or room tags, select annotations categories, and then unmark the category you wish to hide in the Revit link.

Creating spaces: •

In the drawing area, select the Revit link, then click edit type in the properties window and under constraints, mark the box in front of room bounding, then click ok.

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From analyze ribbon tab , click space.

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For upper limit select the level which is above the level you already open i.e., if you already open the ground floor, then the upper limit will be the first floor.

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For offset value, select 0.00

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Zoom to the room in which you want to create space and click on it to make it a space.

Creating spaces automatically:









Note: •

Spaces are used to determine rooms’ areas, volumes, perimeters and other parameters used for HVAC and electric calculations.

Spaces’ properties: •

In the drawing area, select the space you wish to know its properties such as space name, space number, area, volume, perimeter and any other parameters that are used during HVAC and electric calculations.

Separating spaces: • •

From analyze ribbon tab , from spaces and zones panel, click space separator. Zoom to the space you wish to separate and draw the separation line, the space now is separated, then click space again to assign the separated space.

Creating zones: Adding spaces to zones: • •

From analyze ribbon tab , from spaces and zones panel, click zone. In the drawing area, select the spaces you wish add to the zone and then click finish editing zone.

Adding/Removing spaces to/from created zones: •

In the drawing area, select the zone we have created in the previous step.

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Click edit zone, click add space if you wish to add spaces to the pre selected zone, or click

remove space if you wish to remove spaces from the pre defined zones. Displaying zones: •

From analyze tab, click system browser.

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System browser is used to display systems that have been used in the model and the created zones as well.

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In the system browser, right click on systems, from views select zones. Now all zones that you had created are listed in the system browser, click the + sign beside the zone name, right click on any space under the zone, click show to display the space in many view.









Autodesk Autode sk Revit MEP MEP 2012 Planning and Design of the HVAC System During the pages below, we are discussing both planning and











The following are the main issues for planning and designing HAVC system Planning HVAC Systems Determining project location •

From manage tab, project location panel , click project location .

Note: If there’s an internet connection, project location can be determined from Google earth under the environment of Revit mep. •

Under location tab , from define location by , select default city list from the drop down menu.

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For city , select the city in which the project is located into.

Note: Revit mep will automatically determine both the latitude and the longitude. •

If the previously assigned city has variations in time during year seasons such as Egypt, check

use daylight savings time. •

From weather tab, check use closest weather station , this option will automatically adjust the temperature during the different seasons as per the closest weather station to that city.

Verifying project information •

From manage tab, under settings panel, click project information .

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Under energy analysis, click edit.

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Under building type, select the building type such as school, office building, etc.

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From location, we can determine the project location typically as the previous step.

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For building service, select the system which is being used for the HVAC.

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From building infiltration class, select the building infiltration.









Performing heating and cooling load calculations: Verifying area and volume computation method: •

Under architect tab , from room and area panel , click area and volume computations .

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In area and volume computations dialog, verify that areas and volumes is selected.

Note: To have an accurate heating and cooling calculations, make sure that area and volumes is selected. Working with analytical model •

From analyze tab, click heating and cooling loads; from general tab verify the building type, location and all the previously mentioned settings that we have performed in the previous steps.

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Under details tab, we can view the zones that we had previously prepared.

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After selecting the spaces under the zones, use the highlight icon to highlight the space that we have selected in the building.

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Use the isolate icon to isolate the selected space from the building.

Verifying zone information •

Under details tab , select the zone you wish to verify/change its information.

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Under service type, select the HVAC system that will be used for the pre selected zone.

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Under heating information, specify heating set point, heating air temperature.

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Under cooling information, specify cooling set point and cooling air temp for the pre selected zone.

Verifying space information •

Select the space under the zone of which you wish to verify its information.









Creating zone color scheme: •

From architect tab , under room and area panel , click the drop down arrow and select color

schemes. •

In the edit color scheme dialog, under category select HVAC zones.

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Select any of the existing schemes and then click duplicate, for name of the new color scheme, enter cooling load by zone.

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For title , enter the required title of the color scheme i.e. cooling load by zone.

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Under color, select calculated cooling load, and select by range, click apply then ok to exit.

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Click color fill legend under architect tab , room and area panel.

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In the drawing area click to place the color scheme legend.

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In the choose space type and color scheme dialog, for space type select HVAC zones, and for color scheme select cooling load by zone.

Now the spaces are colored as per their cooling load ranges specified in the color scheme legend settings. Creating air flow schedule: •

During the steps below, we are going to prepare a schedule that includes each space name, number, level and the calculated air flow.

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Under analyze tab, reports and schedules panel, click schedule/quantities .

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In the new schedule dialog, under categories , select spaces.

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For name, enter Air flow schedule for spaces, and select schedule building components.

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For phase select new construction, and click ok.

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available fields, double click number, name, In the schedule properties, for fields tab, under available level, calculated supply airflow and actual supply air flow.

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Click sorting/grouping tab, for sort by, select level and check blank line and header.

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Under formatting tab, if you wish to hide any of the previously selected fields, click the field and then check hidden field.









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From the left pane, click main to specify settings of the main ducts, such as duct type and offset of the main ducts.

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Click branch to specify the same previous steps, the existence of a flexible duct and its

maximum length. •

Click rectangular from the left pane to check the listed duct sizes for the rectangular ducts, specify the sizes that will be listed in the size list and duct sizes to be use in sizing, also we can add new size by clicking new size and delete any of the unused sizes.

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Do the same previous steps for both oval and round ducts. Click pipe settings from the left pane, and verify the listed settings for size suffix and connector separator .

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Click main from the left pane and specify the pipe types and main pipe offset.

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Click branch from the left pane and do the same previous step.

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Click sizes from the left pane, from material specify the used pipe material.

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roughness, connection and schedule type. Specify surface roughness

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Check the listed pipes sizes, as we can add new pipe size and delete any of the listed sizes.

Note: We can add new material, connection and schedule if the used pipe settings differ from the currently existing ones. •

Click fluids form the left pane, and check the listed properties of water at various temperatures, as we can add a new temperature and delete any of the listed ones as well.

Creating duct system: •

In the project browser, families, duct systems, duct system, right click any of the existing duct systems, click duplicate, and rename the new duplicated duct system.

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Right click the new duplicated duct system, click type properties.

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Verify/specify the listed properties, such as graphic overrides that determine both color and









Creating duct type: •

In the project browser, families, ducts, rectangular/round duct, right click any of the existing duct types and click duplicate.

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Rename the duplicated duct type, right click the new duct type and click type properties.

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In type properties dialog, verify/specify the listed duct roughness, fittings such as elbows, tee, transitions and the other fittings that will be used during using this duct type.

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Do the same previous steps for round and/or oval ducts.

Creating pipe type: •

In the project browser , families, pipes, pipe types, right click any of the existing pipe types and click duplicate.

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Rename the duplicated pipe type, right click the new pipe type and click type properties. In type properties dialog, verify/specify the listed pipe roughness, fittings such as elbows, tee, transitions and the other fittings that will be used during using this pipe type.

Hosted elements: Hosted elements such as air terminals and equipment are those ones that require a host to be placed on such as walls, slabs, ceilings and floors. As they automatically have the offset of the host they are placed on. Placement of the hosted elements shall be specified before placing them, i.e. we shall specify whether we will place them on a vertical face for side grills or a horizontal face for diffusers and slots. Creating supply air system: Placing hosted air terminals •

From home tab, HVAC panel, click air terminal.











Placing air handling equipment: •

From home tab, click mechanical equipment, and select any from the listed equipment listed.

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Select the air handling equipment and check for its specified offset.

Creating the system: •

Select any of the supply hosted diffusers, right click its connector and click create duct system.

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Click duct systems tab, edit system, add to system and select the other diffusers in the view to add them to the system.

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Click select equipment, and select the air handling equipment that we previously placed.

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system. Click finish editing system

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Select any of the diffusers that are in the system, click duct systems tab, and in the properties

palette , system name, specify a name for the created system. Now we have created a supply air system that includes air terminals and air handling equipment. Working with system browser System browser is used for displaying both created zones and systems. •

Click view tab, user interface, select system browser.

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For views, select systems, and select mechanical .









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From modify multi select tab , click duct/pipe sizing. In the duct sizing dialog, specify method of duct sizing and constraints of any of width or height and click ok to finish.

Creating duct color legend: Setting the color scheme: •

From architect tab, room & area panel , click the small arrow and select color schemes.

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Right click any of the existing schemes in the left pane and click duplicate.

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Rename the new duplicated color scheme.

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For category select ducts, for title, enter the title of the color scheme.

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For color, select flow, and then select by range.

You can edit the flow ranges listed. Applying the color scheme: •

From analyze tab, color fill panel, and click duct legend.

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In the drawing area, click to place the duct legend.

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For color scheme, select duct fill color – flow and click ok to finish.

Inspecting the system

















Planning electrical system: •

From manage tab, settings panel, mep settings, click electrical settings.

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In the electrical dialog, click general in the left pane.

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Check the listed options i.e. electrical connector separator and circuit description.

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In the left pane, click wiring, and check for the listed parameters.

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Click wire sizes, check for wire material, temperature and insulation type.

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Check the listed ampacity, as we can add new or delete any of the listed ampacity.

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Click correction factor and check for wire material, temperature and the correction factors as well, as we can add new correction factor or delete any of the listed correction factors.

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Click ground conductors, check for material and the ampacity of the ground conductors, as we can add new or delete any of the listed values.

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Click wiring types, check the listed wires materials, temperature ratings, insulation and if a

neutral is required or not. •

Click voltage definitions from the left pane and check for the listed voltage definitions.

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Click distribution systems, and check for the listed distribution systems, as we can add new, modify or delete any of the listed distribution systems.

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In the left pane click cable tray settings and check the listed parameters.

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In the left pane, click size and check of the listed sizes, as we can add new size, delete any of the existing sizes or modify any of the listed sizes.

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In the left pane, under conduit settings click sizes, from standard, select the type of the conduit









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In the parameter properties dialog, select project parameter .

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For name, enter required lighting level, for discipline , select electrical.

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For type of parameter , select illuminance and for group parameter under, select electrical –

lighting. •

For categories , select spaces.

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Click ok to finish.

To modify any of the created parameters, from manage tab, settings panel, project parameters, select the parameter you wish to modify and click modify. Note: Modifying the created parameters is limited to parameter name, group parameter under, and the categories that the parameter will be applied to. Creating the key schedule: •

Under analyze tab, click schedule/quantities .

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In the new schedule dialog, for category, select spaces.

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Lighting level key schedule and select schedule keys and for key name, enter space lighting.

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Click ok to exit.

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available fields, double click required In the schedule properties dialog, in fields tab, under available











Creating color fill legend scheme Setting the color scheme: •

From architect tab, room & area panel , click the small arrow and select color schemes.

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Right click any of the existing schemes in the left pane and click duplicate.

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Rename the new duplicated color scheme.

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For category select spaces, for title, enter the title of the color scheme.

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required lighting level, and then select by range. For color, select required

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Click ok to finish.

You can edit the lighting level ranges listed. Applying the color scheme:

















Designing Electrical System Placing lighting fixtures: •

Open the reflected ceiling plan to place the lighting fixtures.

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Under home tab, electrical panel, click lighting fixture.

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In the properties palette, select the required lighting fixture you want to place.

Note If the required lighting fixture isn’t included in the exiting fixtures, under modify-place fixture tab, mode panel, click load family and browse for the required lighting fixture and click open to load it. •

Under modify-place fixture tab, placement panel, click place on face .









Placing switches •

Under home tab, electrical panel, click device and then click lighting.

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From the properties palette , select the switch type you wish to place.

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Under modify-place lighting device tab, placement panel, and click place on vertical face .

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In the drawing area, click to place the lighting device.

Placing panel boards: •

Under home tab, electric panel, click electrical equipment .

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From properties palette , select the control panel type you wish to place.

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Under modify-place equipment tab, placement panel, click place on vertical face .

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In the drawing area, click to place the panel board.









Creating power circuit: •

In the drawing area, select any of the receptacles that we have placed during the previous steps.

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Under modify-electrical fixtures tab, create systems panel, click power.

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Under electrical circuits tab, system tools panel, click edit circuit and then click add to circuit.

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In the drawing area, select the receptacles you wish to add to the power circuit.

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Click select panel, and in the drawing area, click the panel board to select it.

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Click finish editing circuit to finish.

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In the drawing area, highlight any of the receptacles in the circuit and press tab till all the receptacles and the control panel as well are highlighted then click to select them.

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Under modify-multi select tab, convert to wire panel, click arc wire .

Now the power circuit is created with its related wiring from the receptacles to the control panel.

Revit MEP 2012

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