Products & Manufacturers / Controls & HVAC Equipment / HVAC Controllers
HVAC Controllers
Explore programmable building automation, AHU, VAV, fan coil, central plant and supervisory control devices. Browse by controller application, then filter by manufacturer.
Controller Types
Programmable HVAC Controllers (DDC)
Flexible programmable field controllers used in building automation and HVAC equipment.
Browse model profiles →AHU Controllers
Air handling unit control platforms for fans, dampers, coils and ventilation.
Browse model profiles →VAV Controllers
Variable air volume control devices for airflow and terminal unit applications.
Browse model profiles →Fan Coil Unit Controllers
Control equipment for fan coil, room terminal and hydronic zone systems.
Browse model profiles →Plant & Chiller Controllers
Controllers for chillers, heat pumps, central plants and refrigeration systems.
Browse model profiles →Supervisory Controllers
Network-level devices coordinating field controls and building automation.
Browse model profiles →Additional Manufacturer Controller Profiles
Browse HVAC controls manufacturers →
LEFOO capillary, differential and dual-bulb temperature controllers
- LF55T frost-protection capillary switch — low and high contact wiring
- TS single-bulb capillary refrigeration temperature controller
- TSD two-bulb measured temperature DIFFERENCE
- TSH two independent oil/discharge safety limits and manual reset variants
Temperature control is distinct from mechanical pressure or flow switches; choose measured temperatures, sensor placement and manual reset architecture.