Advanced Application Controller (B‑AAC)
As defined in BACnet® 135‑2001 Annex L

EIA‑485 port for BACnet MS/TP communications
(baud rate selectable via DIP switches)

Binary Inputs (2)

Remote Occupancy Contact / Fan Status
Low‑Limit Thermostat
Analog Inputs (4)

Room Air Temperature (10k thermistor)
Supply Air Temperature (10k thermistor)
Outdoor Air Temperature (10k thermistor)
Changeover Switch (dry contact) or Changeover Sensor (10k thermistor)
(10‑bit A/D resolution)

Binary Outputs (5)

High‑Speed Fan
Medium‑Speed Fan (or Stage 3 Electric Heat)
Low‑Speed Fan (or Stage 2 Electric Heat)
2‑Pipe Valve / Heating Valve / Electric Heat Stage 1
Cooling Valve / Electric Heat Stage 1 (2‑Pipe Electric Heat)
(Relay contacts rated 1A max @ 24 VAC/VDC, normally open)

Analog Outputs (3)

Mixed Air Damper
2‑Pipe / Heating Valve / Face‑and‑Bypass Damper
Cooling Valve
(0–10 VDC, 5 mA max, 8‑bit D/A resolution using filtered PWM)