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Perimeter Heating Control: Components
User Interface Panel
  • Touch screen
  • Graphics of system and environment
  • Schedules, setpoints
  • Trends
  • Histories
  • Password access levels
  • Networked
Master Controller: (controls the SCR)
  • Zones
  • All data inputs
  • Calculations
  • Time schedules (local/remote)
  • Networked
  • Interface to BMS

The System: SCR Control PowerPak (output to heating equipment)
  • Zero crossover switching
    • No interference
  • Isolated control circuit
  • Proportional control
    • Input:
      • 4-20 ma
      • 0-5 Vdc
      • 1-5 Vdc
      • 0-10 Vdc
  • Remote auto/manual adjustment switch
  • Remote shutdown
  • Capacity 30, 45, 50 amp
    • 3-8 sections per zone
      • Depending on BTU/ft