The VRF/VRV Design software will generate equipment schedules that can be used on your CAD design drawings. Factory refrigerant charge & additional refrigerant charge required.Accessories: Branch Selector Boxes, Y-Branches, Headers, etc.The VRF Piping Design Software will provide a bill of materials for the project which should include the following at a minimum Control Wiring to Main Controller if used.Control Wiring between Branch Selector Boxes and Outdoor Units.Control Wiring between Branch Selector Boxes.Control Wiring from Indoor Units to Branch Selector Box.Control Wiring from Controller to Indoor Units.The VRV Design Software should give you the following as shown in the Wiring Diagram above The schematic will indicate the power and control wiring size and type.

The VRF manufactures will provide a schematic of the electrical and control wiring diagrams showing how all of the components of the system are powered and controlled. This makes the drawing is easier to read. Looking at the above VRF piping diagram you can see everything is drawn with a single line, but that there are three dimension (3-Pipe System) for the pipes leaving the Outdoor Unit, and two dimensions (2-Pipes) leaving the branch Selector Box going to the Indoor unit. Model # of all Indoor Units and its Cooling & Heating Capacity.Pipe Sizing from Branch Selector Boxes to Indoor unit.Model numbers of all “Y”-Branch Fittings and where they are located.Pipe Sizing from outdoor Unit to Branch Selector or Indoor Unit.The VRF Piping Design Software should give you the following as shown in the Piping Diagram above The software will automatically indicate whether the design has exceeded the allowable lengths as dictated by the VRF manufacture. Of course you will be asked to enter the lengths of piping unless your VRF sales representative has agreed to do it for you based on a set of plans and specifications. All fittings and valves are converted to an equivalent length of pipe when calculating piping and system size. There will also be model numbers for the equipment and accessories with the schematic. The schematic piping diagram will also show the pipe sizes and lengths that were used in the calculation. The VRF manufactures software will provide a schematic piping diagram showing all the outdoor & indoor units along with any accessories.

Below you will find a list of links to each of the Manufactures free VRF Piping Design Software.

Using energy modeling software is great for Heat Recovery Systems and optimizing zoning layout.

You or your engineer will need to have a cooling and heating load to import or use with the VRF piping design software. VRF / VRV manufactures require that you use their proprietary software to design the refrigeration piping for the installation of their VRF systems.

Hvac simulation design software online