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SPST Temperature Reset Control, Dual Scale with Master Reset Sensor

  • Designed to raise or lower temperature of supply water or air based on proportionate rise or drop in temperature at the master sensor
  • Use as a stand alone device or with plug-in accessory modules
  • A99BC-25C Master and A99BB-300C Supply sensors included
  • Adjustable master reset set-point (40°F to 70°F), minimum relay on-time selection (jumper selectable: OFF, 1, 2 or 3 minute), adjustable minimum (50°F to 160°F) and maximum (160°F to 220°F) supply temperature and selectable warm weather shutdown temperature (jumper selectable: OFF, 60, 64, 68 or 72°F)
  • Switch action: SPST, N.O.
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Product Type:
Control Assembly
Replacement Part
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