A BAS monitors and controls building equipment such as central HVAC, ventilation and lighting. It is distinct from software that coordinates wider property operations.
A building automation system is excellent at running central mechanical equipment: boilers, chillers, air handlers, ventilation and common area lighting. What it usually isn't built around is who lives in each unit, which units are vacant or which resident a problem affects. In apartment buildings, much of the daily operational work happens at that level, so teams end up juggling the BAS alongside a separate set of tools for units and residents.
BAS controllers manage equipment using sensor readings, schedules and setpoints, usually through a dedicated interface run by engineers or facility staff. Apartment buildings also have equipment inside each unit, such as thermostats and fan coils, that residents use every day and that matter to occupancy, turnover and comfort. Coordinating those devices with lease and occupancy information is a different job from running the central plant.
Della OS handles the unit and resident side of building operations: supported thermostats and controllers inside units, vacant unit settings that follow the lease, temperature alerts and HVAC energy dashboards, all in the same place teams manage access, connectivity and residents. Where a property connects them, Della OS can also communicate with VRV and VRF systems and central plant equipment, working alongside the BAS rather than replacing it.
Better visibility of what is happening in each unit, more consistent procedures, and a clear line between central equipment and the resident experience.
No. A BAS is built specifically to monitor and control central mechanical equipment, and it should stay in place. Della OS sits beside it and handles the occupancy work a BAS isn't designed for, such as unit access, resident services and devices inside units that follow the lease.
No. Della OS works with supported thermostats and controllers inside units, VRV and VRF systems and, where integrated, central plant equipment. Supported equipment varies by property, and the BAS keeps running the central plant it was designed for. Your integration partner confirms which equipment connects before deployment.
No. Savings depend on the building, its equipment, its climate and how it's operated. Della OS supports practical measures such as vacant unit thermostat settings, and any energy result Della publishes is tied to a specific property rather than presented as a promise.
Smart thermostats for apartments · Building operating system · Honeywell · Interel · UEI
