Place heat pump components
Drop the outdoor unit on a façade or roof, drop the indoor unit on the M-layer, connect the refrigerant line. Diaz checks line-length and clearances.
Quick answer
- Library → HVAC → drop Outdoor unit on façade or roof.
- Drop Indoor unit on the M-layer (technical room).
- Right-click outdoor → Connect refrigerant line. Diaz checks length.
Step-by-step
- Open the Library (
B) → HVAC. The folder includes outdoor units (mono-block, split, multi-split), indoor units (hydromodule, wall-mount, ducted), and the refrigerant-line component. - Drop the outdoor unit on the building façade or a flat roof. Diaz snaps to walls at standard installation height (200 mm above ground or rooftop bracket position). For NL: keep the unit on the property line side that is least sensitive to neighbour noise — Diaz reads the project compass to suggest.
- Drop the indoor unit on the M-layer in the technical room (utility room, garage, or basement). For a hydromodule heat-pump (the most common NL/ES residential type), the indoor unit needs floor space ~600×600 mm with 500 mm front clearance for maintenance.
- Connect the refrigerant line: right-click the outdoor unit → Connect refrigerant line → click the indoor unit. Diaz draws the line along the shortest reasonable route (through wall, ceiling void, or along façade), calculates total length, and shows it in the BOM.
- Tag both units to the M-layer if not already. Diaz pre-tags HVAC components to M by default, but if you imported them or moved them between projects, double-check via right-click → Layer.
- Export the HVAC schedule:
File → Export → PDF → HVAC schedule. Output: unit positions on plan, refrigerant-line route, line-length total, and the BOM line per unit. Confirm performance figures (capacity, output, refrigerant volume) against the manufacturer datasheet before submitting — Diaz uses generic templates, not certified product data.
Watch out
- Refrigerant line-length limit: most residential split heat pumps allow up to ~30 m total line length and ~15 m vertical rise. If Diaz warns the planned route exceeds the unit limit, you need a different unit, a closer indoor position, or a multi-split design. Confirm the exact limit on the manufacturer datasheet.
- Outdoor-unit clearance: most outdoor units need ≥ 200 mm clearance behind and ≥ 500 mm in front for airflow. Without it, the unit ices in winter and cycles inefficiently. Diaz shows a clearance box around the unit — keep it free of obstacles in the model.
- Local regulation always wins: noise limits, refrigerant-type permits (e.g. R290 propane vs R32), and structural attachment to the façade all vary per municipality. Diaz does not enforce these — confirm with your installer-certification body and the manufacturer installation manual before submitting permits.