Enerlites DWOS-3R Occupancy/Vacancy Sensor Switch

Specifications

Wiring Directions

The Sensor Switch is used by itself for 2-way control (one switch & one load), with one 3-way switch for 3-way control (two switches & one load), such as at the top and bottom of a stairway.

Wiring Diagram

The wiring diagram shows connections for a single pole or 3-way setup. The sensor requires connections for Neutral (White wire), Hot (Black wire), Load (Red wire), and optionally a 3-Way wire (Blue wire) for 3-way installations. A Green wire is for Ground. The diagram indicates "TOP" labels on terminals and "INDOOR USE ONLY". The note specifies "(Sensor must be at Load side)".

Description

The DWOS-3R utilizes an advanced passive infrared sensor to detect motion based on heat signatures. The sensor switch automatically turns on a connected load when motion is detected and keeps it on for a user-defined time delay after the last motion. The countdown for the time delay begins after the last detected motion. The sensor is customizable via dials to adjust Time Delay, detection Range, ambient Light Level, and includes a switch to select between Occupancy and Vacancy modes.

Coverage

The DWOS-3R provides a 180° detection range. It has a maximum detection distance of 30 feet in front of the sensor and 20 feet on the sides. For optimal performance, the sensor should be installed at a height between 4 to 5 feet and positioned away from obstructions like walls, furniture, or transparent barriers such as Low-E glass.

Figure 1 illustrates the detection range, showing a maximum of 30 feet from the front and 20 feet on the sides, with a recommended installation height between 4 and 5 feet.

Adjustment

The control panel cover also functions as the push button. To access controls, remove the push-button cover plate by prying from the bottom and pulling outward.

Adjustment Dials

• Time Delay Dial: Adjusts the duration the load remains active after the last detected motion. Settings range from 15 seconds (Test mode) to 30 minutes. The default position is 15 seconds.
• Range Dial: Adjusts the sensor's detection range. Settings range from 30% (Position 1) to 100% (Position 4). The default position is 65%. A higher setting is recommended for larger coverage areas.
• Light Dial: Allows adjustment of the ambient light level required for sensor activation. Turn the dial towards the '-' symbol for activation in low light or darkness. Turn towards the '+' symbol for activation in brighter conditions or daylight.

Off/ Occupancy/ Vacancy Mode Switch

This switch determines the sensor's primary operating mode:

• OFF (Left Position): The circuit is permanently disabled (switched off). The push button will not function.
• OCC (Center Position - Occupancy Mode): The load automatically turns ON when motion is detected and automatically turns OFF after the set time delay. The push button can be used to manually toggle the load ON or OFF.
• VAC (Right Position - Vacancy Mode): The load turns ON ONLY when the push button is manually activated. It will then automatically turn OFF after the set time delay expires. The push button can also be used to manually toggle the load ON or OFF. If the time delay expires and the load turns off, the load will turn on again automatically if motion is detected within 30 seconds.

Push-button Function

The push button allows for manual control of the load. It can be used to turn the load ON or OFF, overriding the automatic sensor function temporarily according to the selected mode (OCC or VAC).

Operation

In OFF mode, the switch is inactive. In Occupancy (OCC) mode, the switch automatically turns the load on with motion and off after a delay. Manual override via the push button is available. In Vacancy (VAC) mode, the load requires manual activation via the push button to turn on, and then it automatically turns off after a delay. Manual override is also available.

Troubleshooting

Note: There is a 1-minute warm-up period upon initial power-up. During this time, the load may turn on and off multiple times.

Common Issues and Solutions:

• The Load does not turn On. LED does not flash regardless of motion:
  • Push the Manual On/Off Button. If the load turns on, verify that the Range dial is set to a high setting.
  • Check all wiring connections, ensuring the NEUTRAL wire is properly connected.
  • Confirm the switch is set to the OCC (Occupancy) mode if automatic ON functionality is desired.
• The Load does not turn On when LED indicator flashes and motion is detected:
  • Push the Manual On/Off Button. If the load turns on, verify that the Range dial is set to a high setting.
  • Check all wiring connections, ensuring the LOAD wire is properly connected.
  • Confirm the switch is set to the OCC (Occupancy) mode if automatic ON functionality is desired.
  • Check the Light dial setting. The pointer indicates the ambient light level required for the load to turn on automatically. Adjust as needed.
• The Load does not turn Off:
  • Motion may still be detected, causing the time delay to continuously reset. To test, turn the Time Delay Knob to 15s (Test Mode) and ensure there is no motion (no LED flashing). Covering the Fresnel lens with tape can help verify this.
  • Check for significant heat sources emitting within six feet (approximately two meters), such as high-wattage light bulbs, portable heaters, or HVAC vents.
  • Verify wiring connections; ensure the HOT and LOAD wires are not reversed.
• The Load turns on when its not desired:
  • Motion may be detected, causing the time delay to continuously reset. To test, turn the Time Delay Knob to 15s (Test Mode) and ensure there is no motion (no LED flashing). Covering the Fresnel lens with tape can help verify this.
  • Check for significant heat sources emitting within six feet (approximately two meters), such as high-wattage light bulbs, portable heaters, or HVAC vents.
  • If manual push-button operation is preferred, select the VAC (Vacancy) mode on the Mode Switch.
  • If the sensor is installed in a small room, reduce the Range dial setting to prevent false or unwanted detection from sources like open windows or doors.

Warranty Information

This device is warranted to be free of material and workmanship defects for 5 years from the date of purchase. An original receipt or proof of purchase from an authorized retailer is required for warranty claims. All claims must be verified and approved by Enerlites, Inc. Warranties for other Enerlites products may differ. This warranty is non-transferable and does not cover normal wear and tear, or any malfunction, failure, or defect resulting from misuse, abuse, neglect, alteration, modification, or improper installation. To the fullest extent permitted by applicable state law, Enerlites shall not be liable for direct, indirect, incidental, or consequential damages, even if advised of the possibility of such damages. Enerlites' total liability is limited to repair, replacement, or refund, which are the sole and exclusive remedies for breach of warranty or any other legal theory.

[UL Listed] certification is indicated.

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