• Flexible sensor inputs accept Type II NTC 10K or 0-10 Vdc standard sensors, or Siemens QFM2160U or QFR9530 combination temperature/humidity sensor for enthalpy control
  • Can be used with Siemens OpenAirĀ® damper actuator GQD, GMA or GCA series
  • 24Vac digital inputs for indication of occupancy, 3-stage Cooling Stage input, Shutdown, Heat Conventional, Heat Pump Changeover (HP(B)/HP(O)) or Preoccupancy
  • 24Vac relay outputs (digital) for 3-stage Cooling Stage output, Exhaust Fan, VFD On/Off (Variable Speed Supply Fan Enable), System Alarm output (Title 24) or Energy Recovery Ventilation (ERV)
  • Anti-freeze protection
  • Fault detection and alarming
  • Brownout protection