Siemens 550-530 LTEC-SDAV 4IN 6DO 1DPS NSMP Apogee Terminal Controller

Siemens 550-530 LTEC-SDAV 4IN 6DO 1DPS NSMP Apogee Terminal Controller is a LonWorks-based APOGEE Terminal Equipment Controller (TEC) engineered for VAV/CV single‑duct HVAC applications within the APOGEE field network. It provides 4 inputs, 6 outputs, and 1 DPS to connect sensors and actuators for precise air‑flow and temperature control across a single‑duct VAV or constant‑volume system. The LTEC platform communicates over LonWorks and supports LTEC room temperature sensors in the 550‑180 through 550‑187 series, with optional digital display for local setpoint adjustment, enabling flexible sensing and control within a compact field device. In APOGEE installations, LTEC devices typically drive loads via triac outputs, and the 550‑530 is specified for standard VAV/CV single‑duct control, designed for standard APOGEE power and wired to the LonWorks field network to integrate with other TECs and P1/P2 devices across the system.