Everything HVAC Builder publishes on HVAC Builder — complete systems and component listings, each with its own spec page and a quote request that needs no account.
A chilled-water air handler with reheat and a supply fan, published as an example. The design-point figures below come from the solver, not from a datasheet.
A minimal direct-expansion split — indoor coil, scroll compressor, outdoor coil — published as an example of what a supplier's system page looks like. Its performance below is solved live from this model.
R410A compressor — 11.4 kW cooling, 4.01 kW input, COP 2.85 at the AHRI 7.2/54.4 °C rating point.
Fin-and-tube coil, 600 × 600 mm face, 3 rows at 12.0 fpi, 0.90 m³/s design air flow.
Open any system or component above and send the request from its page — it arrives with the item, and with your design when you send it from the builder.