Enerlites MDC-50V 360 Degree Line Volt Dual Tech Occupant Ceiling Sensor Installation Guide
- June 14, 2024
- ENERLITES
Table of Contents
Enerlites MDC-50V 360 Degree Line Volt Dual Tech Occupant Ceiling Sensor
Product Information
Specifications
- Ultrasonic Adjustment: Minimum to Maximum (trimpot 1)
- PIR Coverage: 1200ft2
- Ultrasonic Coverage: 1000ft2
- Ultrasonic Radius: 18′ (or 36′ Diameter)
- PIR Radius: 22′ (or 44′ Diameter)
- MDC-50V at 9′ high
Description
The MDC-50V is a motion sensor designed for use in indoor spaces. It
combines ultrasonic and PIR (passive infrared) technologies to detect motion
and control lighting accordingly.
Coverage
The MDC-50V has an ultrasonic radius of 18′ (or 36′ diameter) and a PIR radius
of 22′ (or 44′ diameter). When mounted at a height of 9′, it provides coverage
for an area of approximately 1000ft2. It is important to mount the sensor in a
location free of obstructions such as furniture, plants, walls, and
vibrations. The sensor should be mounted at least 4 ft. away from any air
vents and should not be mounted close to a heat source. If mounting directly
to a ceiling light fixture, ensure that the lens of the sensor is below the
lowest point of the fixture.
For optimal coverage, it is recommended to install multiple MDC-50V sensors in the walkways of an open office space.
Installation Instructions
Wiring Directions
- Connect the Hot wire to the Black wire on the sensor.
- Connect the Load wire to the Red wire on the sensor.
- Connect the Neutral wire to the White wire on the sensor.
Make sure to use copper wires only for the connections.
Helpful Hints
- Ensure that the sensor’s view of the entrance is not blocked by an open door.
- Program a longer time out to avoid frequent lights turning on/off.
- Avoid mounting sensors close to air vents.
- Cover the main walkways with sensors.
- Avoid having the sensor looking out the door of the space.
Open Office or Classroom Area Coverage
- To achieve complete coverage in an open office area, install multiple sensors with at least 15% overlap in each adjacent sensor’s coverage area.
- The sensors should cover the primary occupant’s desk, theentrance, and any other areas with heavy traffic.
Light Level Adjustment
The MDC-50V sensor can be adjusted to operate at the desired level of
ambient light. To do so:
- When there is low light or no light required for motion detection, turn the dial to point the arrow toward the “-” sign.
- When there is more light in the area or even during daylight, point the arrow toward the “+” sign.
Note : The light level adjustment is only available when the time delay is set at or above 30 seconds.
Sensor Adjustment
The MDC-50V sensor has the following components for adjustment:
- Light
- Ultrasonic sensitivity trimpot
- PIR activity LED (Red)
- PIR Ultrasonic activity LED (Green)
WARNING
Before installing the sensor, turn the POWER OFF at the circuit breaker.
Read and understand all the instructions provided. This device should be
installed in accordance with the National Electric Code and local regulations.
It is recommended to have a qualified electrician perform the installation.
Ensure that the circuit breaker or fuse(s) are turned off and power is off
before wiring the device.
FAQ
What is the coverage area of the MDC-50V sensor?The MDC-50V sensor provides coverage for approximately 1000ft2 when mounted at a height of 9′.Can I install multiple MDC-50V sensors in an open office space?Yes, it is recommended to install multiple sensors in the walkways of an open office space to achieve optimal coverage.How should I wire the MDC-50V sensor?Connect the Hot wire to the Black wire, the Load wire to the Red wire, and the Neutral wire to the White wire on the sensor. Use copper wires for the connections.Can I adjust the light level sensitivity of the MDC-50V sensor?Yes, the MDC-50V sensor can be adjusted to operate at the desired level of ambient light. Turn the dial to point the arrow towards “-” for low light or no light detection, and towards “+” for more light or daylight detection.
MDC-50V
360° Dual-Technology PIR/Ultrasonic Line Voltage Occupancy Sensor
SPECIFICATIONS
- Voltage …………………………………………………………………… 120/277VAC, 50/60Hz
- Tungsten ……………………………………………………………….800W-120VAC, 50/60Hz
- Electronic Ballast………………………….800VA-120VAC,1600VA-277VAC, 50/60Hz
- Motor …………………………………………………………………. 1/4HP-120VAC, 50/60Hz
- Operating Temperature …………………………………………….32°to 131°F (0°to 55°C)
- Adjustable Light Level ……………………………………………………………..10FC-150FC
- Adjustable Time Delay…………………………………………………….. 5 Sec. to 30 Min.
- PIR Adjustment………………………………………………….50% or 100% (DIP switch 1)
- Ultrasonic Adjustment ……………………………….. Minimum to Maximum (trimpot 1)
- PIR Coverage………………………………………………………………………………….1200ft 2
- Ultrasonic Coverage…………………………………………………………………………1000ft 2
DESCRIPTION
The MDC-50V 360° Dual-Technology Occupancy Sensor combines advanced passive
infrared (PIR) and ultrasonic technologies into one unit. The combined
technologies help to avoid false triggering. Selectable operating modes allow
the sensor to turn a load on, and hold it on as long as either or both
technologies detect occupancy. After no movement is detected for the selected
time delay, the lights switch off.
COVERAGE
The MDC-50V provides a 360° coverage pattern. The coverage shown represents
walking motion at a mounting height of 9 feet. For building spaces with lower
levels of activity or with obstacles and barriers, coverage size may decrease.
Location : Device should be mounted in a location free of obstruction from furniture, plants, walls and vibration (see Figure 1). The sensor must be mounted a minimum of 4 ft. away from any air vents. Avoid mounting the sensor close to heat source. When mounting directly to a ceiling light fixture, the lens of the sensor must be below the lowest point of the fixture.
MDC-50V is designed for a ceiling height of about 8-10 feet. Because of the
umbrella shaped coverage pattern, mounting above or below the recommended
height could reduce coverage range and sensitivity. It is not necessary to
have occupancy sensor coverage on every square inch of space in any particular
room. The best location to install multiple MDC-50V is usually in the
walkways of an open office space (see Figure 2).
Helpful hints:
- Make sure that the sensor’s view of the entrance will not be blocked by the door when it is open.
- Program a longer time out to avoid the lights constantly turning on/off.
- Do not mount sensors close to air vents.
- Cover the main walkways.
- Try to avoid having the sensor looking out the door of the space
Open Office or Classroom Area Coverage:
- To get complete coverage in an open office area, install multiple sensors so that there is at least 15% overlap with each adjacent sensor’s coverage area.
- The sensors should cover the primary occupant’s desk, the entrance and any other areas with heavy traffic.
WARNING: Turn the POWER OFF at the circuit breaker before installing the sensor
Read and understand these instructions before installing. This device is intended for installation in accordance with the National Electric Code and local regulations. It is recommended that a qualified electrician performs this installation. Make sure to turn off the circuit breaker or fuse(s) and make sure power is off before wiring the device. Use copper wires only.
WIRING DIRECTIONS
- Connect the Hot wire to the Black wire on the sensor.
- Connect the Load wire to the Red wire on the sensor.
- Connect the Neutral wire to the White wire on the sensor.
LIGHT LEVEL ADJUSTMENT
The sensor may be adjusted to operate at the desired level of ambient light. To do so, turn the dial to point the arrow toward the “-”sign for sensor to detect motion and operate during low light or no light. Point the arrow toward the “+”sign for sensor to operate when there’s more light in the area or even during daylight.
NOTE : The light level is adjustable only when the time delay is set at or above 30 seconds.
SENSOR ADJUSTMENT
ULTRASONIC LEVEL ADJUSTMENT
Ultrasonic Sensitivity Adjustment Dial Adjustable: Minimum (counterclockwise) to Maximum (clockwise)
Note : Turn toward right for greater room space. Turn toward left to avoid false alert in smaller room and near the door way or heat source.
MOUNTING USING AN OCTAGONAL J-BOX
(not included)
- Pull the high voltage wires from the power pack into the J-Box through the conduit knockout.
- Connect the high voltage wires to the appropriate terminals on the sensor.
- Loosen the appliance mounting screws attached to the J-Box.
- Align the sensor to the J-Box so that the mounting screws on the box match the key holes on the sensor’s Main Body.
- Push the sensor up into the J-Box and twist it so that the mounting screws are seated in the keyhole slots.
- Tighten the two screws to secure the sensor to the J-Box.
- Snap on the front cover onto the sensor.
TESTING OCCUPANCY SENSOR
Note : There is a 40- second warm-up period when power is first applied. Use a small screwdriver to open the front cover and make changes to the settings. The pre-set time delay is Test mode and light level is set at maximumRefer to Figure 3 on previous page.
- Ensure the PIR Activity is enabled, red LED flashes, PIR Sensitivity is set to 100% (DIP switch 1 ON) and Ultrasonic Level is set to Maximum.
- Ensure the Time Delay is set for Test Mode.
- Ensure that the Light Level is at the maximum position.(see” LIGHT LEVEL ADJUSTMENT”).
- Remain still. The red LED should not flash. The lights should turn off after 15 seconds. (If not, see “TROUBLESHOOTING.”)
- Move in the front of coverage area. The lights should turn on automatically. When functional test is complete, set DIP Switches, Time Delay and Light Level to the desired settings, and put the front cover back on the sensor.
DIP SWITCH SETTING
The MDC-50V has 8 DIP switches under the cover. They are used to set PIR sensitivity, time delay, override and tigger mode feature settings.
Sensitivity setting: DIP switch 1
- 50% -This setting will decrease the amount of area the sensor will cover to half the range
- 100% , the maximum range of sensor’s coverage is 1600 square feet, see “coverage pattern”
Trigger Mode: Switches 2, 3,4
Follow the DIP Switch Setting Table and use DIP switches 2, 3 and 4 to select
1 of the 6 trigger options.
- Both : requires motion detection by the PIR and the Ultrasonic.
- Either : requires motion detection by only one technology.
- PIR : requires motion detection by the PIR.
- Ultrasonic : requires motion detection by the Ultrasonic.
Time Delay: Switches 5, 6, 7
The sensor will hold the lights on as long as occupancy is detected. The time
delay countdown starts when no motion is detected. After no motion is detected
for the length of the time delay, the sensor will turn the lights off.
Override: Switch 8
To override all sensor functions, set to ON position (DIP Swicth 8).
TROUBLESHOOTING
NOTE : There is a 40 seconds warm-up time at initial power-up.
Red LED does not blink:
- Check that the circuit breaker has been turned back on.
- Make sure that the PIR Sensitivity is set for 100% (DIP switch 1).
Both LEDs blink but lights do not turn ON:
- Check the “Light” setting. If the arrow is pointed to the “-“position, the area needs to be dark enough for the sensor to operate. Cover the light sensor lens to simulate darkness. If the light turns ON, the light level setting needs to be adjusted.
- Make sure the wires are connected and bulbs are working.
- Check for obstructions in the lens cover.
- Make sure that power to the sensor has been ON continuously for at least one minute. Wait for the warm-up period to end.
Green LED does not flash:
Ultrasonic sensitivity setting may need to be increased. Turn clockwise as needed.
Lights do not turn off automatically:
-
Green LED flashes:
Reduce ultrasonic sensitivity by turning counter-clockwise until it only flashes when movement occurs. -
Red LED flashes:
Reduce PIR sensitivity by setting to 50%(DIP Switch 1).
Lights do not turn OFF automatically:
- If there is no motion from people or equipment in the sensor’s view but either LEDs blink, look for any nearby source of infrared energy (heat) in motion, such as turbulent air from a heating or cooling supply.
- Mount the sensor so that its lens is below the edge of the fixture and does not directly view the lamps.
- Move the air supply away from the sensor, or move the sensor.
- Verify the time delay settings in switches 5-7. Ensure that the time delay is set to the desired delay and that there is no movement within the sensor’s view for that time period.
- Check sensor wire connections.
WARRANTY INFORMATION
This device is warranted to be free of material and workmanship defects for 2 years from the date of purchase. Original receipt or proof of purchase from an authorized retailer must be presented upon warranty claim. ALL claims must be verified and approved by Enerlites, Inc. Warranties from other Enerlites products may vary. This warranty is nontransferable 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 the applicable state law, Enerlites shall not be liable to the purchaser or end user customer of Enerlites products for direct, indirect, incidental, or consequential damages even if Enerlites has been advised of the possibility of such damages. Enerlites’ total liability under this or any other warranty, express or implied, is limited to repair, replacement or refund. Repair, replacement or refund are the sole and exclusive remedies for breach of warranty or any other legal theory.
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