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The RS300N Premier series of thermostats from Robertshaw are designed for new and replacement commercial or residential applications. The RS300N family has a beautiful new blue backlight and secondary display for the remote sensor bus. The RS300N family thermostats are direct replacements for the Robertshaw 300 series non-programmable products. They can be configured to control conventional HVAC equipment or heat pump equipment with both traditional and dual fuel heat pumps. The pushbuttons on the thermostat can be locked to give restricted override capabilities, and the optional Occupancy Sensor enables automatic energy savings. The advanced remote sensor bus (except RS311N) allows up to 6 indoor remote sensors, an outdoor sensor, and up to 3 auxiliary sensors for needs such as supply air, return air, water temperature, walk-in freezers and refrigerators, and any other temperature monitoring desired.

  • Auto Heat/Cool Changeover, Heating Only or Cooling Only Control
  • Intuitive Setup Menu for Easy Configuration of Options
  • Fan Selector for Automatic, Continuous or Recirculation Fan Operation
  • Adjustable Deadband between Heat and Cool Setpoint in Auto Changeover, from 2°F (1°C) and 8°F (4°C)
  • Adjustable Fan Purge Timer to Use All Conditioned Air at the End of a Heating or Cooling Call
  • Adjustable Min/Max Heating and Cooling Setpoint Limits
  • Room Sensor and Remote Sensor Calibration Offset
  • Commercial Lockout Mode with adjustable 0 to 24 Hour Override in 10 min Increments
  • Resume Button for Cancelling Commercial Override
  • +/- 3°F (1°C) or +/-5°F (2°C) Restricted Temperature Adjustment in Commercial Lockout Mode
  • 2 Occupied (Day-Cool & Day-Heat) and 2 Unoccupied (Night-Cool & Night-Heat) Setpoints
  • Adjustable Balance Points for Heat Pump Compressor and Aux Heat Lockout when Used with Outdoor Sensor
  • Selectable Fahrenheit or Celsius Display
  • Lockable Access Cover
  • HVAC equipment control using dry contact relays
  • Two Digital Inputs with LEDs: LED1 (Green - Filter) and LED2 (Yellow – Fault) with or without LCD icon indications
  • LED3 (Red - Emergency Heat; HP Operation Only)
  • Setback Input for Use as Occupied/Unoccupied Trigger with Optional Occupancy Sensors (Ceiling and Wall Mount)
  • Advanced Remote Sensor Bus Sensors allow up to 6 Indoor, plus Outdoor, Aux1, Aux2, and Aux3 (think supply air, return air... all on a 3-wire bus)
  • Random Restart on power up randomly staggers restart of HVAC system after a power outage to minimize peak in-rush current for any installation
  • Economizer Control
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Multi-Stage (Heat/Cool)
3 Heat/2 Cool Heat Pump
User Interface:
Push Button
Fan Control
Large Display
Auto Changeover
Operating Temp Range:
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