Tutorials BimCraft help Walkthroughs

MEP equipment with ports

Place generic air handlers, fans, pumps, boilers, water heaters, terminal units, diffusers, grilles and tanks sized by the values you type, each with the pipe and duct connections other runs join.

Written for BimCraft 0.7.1. The same help is inside the app: press F1.

What you'll do

Put the equipment at the ends of your pipes and ducts. Each piece is a generic shape sized by the values you type, with its connections as ports: where a pipe or duct joins it, which system, which way the flow goes, and what size. Pipes and ducts drawn from a port take its size and system and stay fixed to it: see Connect pipes and ducts to equipment.

Place a piece

  1. Turn on Draw, open Build and choose Equipment.
  2. In the bar, pick the kind and type its sizes. Each kind asks for its own:
KindYou typeIts ports
Air handlerlength, width, height; supply and return openings; coil pipe size and system; condensate sizesupply duct out, return duct in, coil in and out, condensate drain
Inline fandiameter, length, systemduct in and out
Pumppipe size, systeminlet and outlet
Boilerlength, width, height, pipe size, gas size, flue diameterheating supply out and return in, gas in, flue out
Water heaterdiameter, height, pipe size, gas or electriccold water in, hot water out (and gas in and a flue when it burns gas)
Terminal unitlength, width, height, round inlet, outlet width and heightsupply air in and out
Diffuserface, neck, systemits neck (air in)
Grilleface width and height, neck width and height, systemits neck (air out to the return or exhaust duct)
Tankdiameter, height, pipe size, systeminlet on top, outlet near the bottom
  1. Set At, the height of its base above the level. A diffuser's or grille's height is its face: type the ceiling height.
  2. Type a Tag if you want one (AHU-1); the next piece of the same kind gets the next number.
  3. Move the pointer over the plan: the footprint and its ports follow it. Press RR to turn it 90°. Click where it goes.

Pipe sizes are steel pipe sizes (ASME B36.10M). A pipe drawn from a pump in another material takes the same nominal size in its own material.

Change or remove it

Pick it in the plan or the 3D view. Properties shows every size you typed, its tag, X, Y, height and turn, and each port: its size, system, which way the flow goes, and whether something is connected. Each change is one step of Undo; runs fixed to its ports move with it. fn DeleteDelete removes it; runs that were fixed to it stay and the Connections check lists them.

In the IFC file

Each kind is saved as its IFC class: IfcUnitaryEquipment (air handler), IfcFan, IfcPump, IfcBoiler (boiler; a water heater is an IfcBoiler of type water with the object type "Water heater"), IfcAirTerminalBox (terminal unit), IfcAirTerminal (diffuser, grille) and IfcTank, with a type shared by every piece of the same kind and sizes. IFC2X3 files get IfcEnergyConversionDevice, IfcFlowMovingDevice, IfcFlowController, IfcFlowTerminal and IfcFlowStorageDevice with the matching types. Each port is an IfcDistributionPort placed where the connection is, facing out, with its flow direction and system; other programs read which run connects to which port. The piece joins the system of each of its ports, and carries the library item sets every placed library item has.