BIM Modeling for HVAC Systems.

After the design of a building, most general contractors will parse out the installations of mechanical, electrical, plumbing, fire protection (MEPF), and other low voltage systems such as security, audio visual, and medical gas to trade contractors. These construction trade service providers will take advantage of reserved space for mechanical equipment, or in many instances, whatever space is available considering field conditions. MEPF BIM modeling services removes the guesswork for trade contractors by modeling and coordinating all the major equipment required for installation within a master 3D BIM architectural model.

When Revit MEP BIM is used for fire protection systems and HVAC installations, a large reduction in field interferences (that usually result in costly schedule delays and field rework) between systems is the result. Additionally, Since the building’s infrastructure involves a number of trade installations, field installations of HVAC ductwork, air handling units, pumping equipment, fire protection sprinkler layouts and plumbing can all be coordinated for optimum routing, along with the inclusion of specific, data rich information.

Fire Protection BIM Information:

Component Graphical Parameters  – size, location, material, mounting heights, and Revit family. Component Property Data model number, K-factor, manufacturer, RTI, operating temperatures, and maintenance requirements, etc.

HVAC BIM Information:

Component Graphical Parameters – duct size, duct shape, room location, zones mounting heights, material, and Revit family. Component Property Data – part number, pressure drop, CFM values, minimum and maximum air velocities, etc.

This may include schematic design, design development layouts, construction drawings through all phases, fabrication shop drawings, mechanical schedules, and bill-of-materials. The process will generally begin with a conversion of all applicable 2D drawings to Revit, if they were drafted on another platform such as AutoCAD.

INDBIM employs experts in both Revit BIM software and building mechanical technologies to achieve the necessary level of detail for your project, using optimized 3D families. Optimized families in Revit serve many purposes, especially for components that are repeated throughout a structure. The Revit model has improved graphical performance when updated families because they use less computing resources. And when you consider the number of HVAC registers or sprinkler heads in a structure, the use of Revit families saves time, resources, and design costs. Using Revit BIM for mechanical systems such as fire protection and HVAC will make sure the construction documents match the engineering design documentation. Always work with an engineering services provider that uses Revit best practices to automate and maintain the property data and graphical representation of mechanical system components. Using BIM family data is just one way to accomplish a pure BIM environment that translates to the construction process and systems installations.

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