HVAC workflow

1. Mains. VMDUCT: system, size, height, then the points; bends, tees and reducers appear as you click. Height on the prompt climbs or drops at the angle chosen.
2. Terminals and equipment. VMINSTALL on open ends or free (ceiling, wall, floor); VMDEVCONNECT joins a group of terminals to a duct, flexible at the end if wanted.
3. Edits. VMCROSS and VMCROSSMULTI pass over or under other services, VMMOVEZ Segment moves one straight to another height, VMCOPYBRANCH copies a branch (Mirror, Rotate), VMCONNECT joins two open ends.
4. Heating. VMPIPESR draws flow and return together, VMRADCONNECT connects radiators; VMFHMANIFOLD, VMFHZONE and VMFHCALC lay and check floor heating after EN 1264.
5. Calculate and size. VMCALC gives flows, pressure drops, the critical path and balancing; VMSIZE applies the recommended sizes with reducers.
6. Document. VMAUTOTEXT labels, VMARROW flow arrows, VMLEGEND, VMBOM, VMOPENAUTO openings and VMIFC for coordination.

See the pictures on the HVAC page.