Standby Operation (Models 20 and 50 Only)

    Warning
  • Hazardous Voltage
  • A certified electrician should verify that the proper standby power requirements are being supplied before connecting to a new power source.
These units may be operated in electric standby mode by connecting the proper voltage power cable to the unit’s power receptacle mounted on the vehicle. Standby operation is used while the vehicle is stationary with the engine shut off.

Standby Power Receptacle

  1. Connect the external power supply to the electric power receptacle. Verify the power supply is the correct voltage, phase and frequency for unit.

  2. Press the On/Off Key on DSR controller. The display will be activated. The electric symbol will appear on the display.

  3. Check the setpoint, and adjust if necessary. Refer to (Entering the Setpoint Temperature).

Standard Display with Standby Symbol