- Air and load
- Design airflow, external static pressure, outdoor-air ratio and supply conditions.
- Cooling and heating
- Water or refrigerant conditions, available heating source and design duties.
- Filtration and hygiene
- Target filtration, cleaning procedures, material compatibility and test access.
- Controls and operation
- Hours, load variation, pressure/temperature/humidity sensing, alarms and control interfaces.
- Delivery and maintenance
- Section size, lifting route, connection directions, drainage and replacement space.