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DUROZONE PANEL SELECTION GUIDE 
FOR STANDARD COOLING UNITS 
AND FURNACES

RED-4
  • Zone4 damper can be used as fresh air damper.  Timer on panel sets minutes of fresh air per hour.
  • Compatible with automatic change-over thermostats allowing any zone to call for heating or cooling.
  • Compatible with most 24VAC powered, battery powered thermostats.
  • Two-stage heating and two-stage cooling for gas/electric systems and three stage heating and two stage cooling for heat pump systems.
  • Optional supply air temperature sensor used to limit supply air temperature and prevent over-heating and freeze-up.
  • Maximum and minimum supply air temperatures can be set on the panel.
  • Optional purge cycle at the end of heating or cooling call.
  • And more...

2 TO 4 ZONES

RED-4

SMZ-2,3 & 4SW

  • Manual Changeover
  • 1 Stage Heat, 1 Stage Cool
  • Zone Damper Switches
  • Fan On / Auto

2 ZONES
2 TO 3 ZONES
2 TO 4 ZONES

SMZ-2SW
SMZ-3SW
SMZ-4SW

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