Wr20D-Em Installation - Intelligent LLEVO-W Manual

3.3 WR20D‐EM Installation

Mount the relay in an easy to access location, typically at the power

voltage wiring compartment.

This Emergency relay should be installed where it can be frequently tested for EM operation, refer to local
code requirements for periodic testing.

The Wireless EM Relay (WR20D‐EM) should be mounted where the relays radio communication is not
obstructed by metal enclosures or subject to equipment with high EMF noise.

The WR20D‐EM relay must be within 50 feet line of sight to the switch stations intended to control it and that
radio transmission is not obstructed by metal.

Mount the relay to a junction box or fixture using the 1/2" nipple and secure with the 1/2" locknut provided
and mounting bracket.

Terminate the Emergency and Normal power line inputs 120/277VAC, neutrals, and fixture control load
outputs from the relay to the EM and Normal power fixtures to be controlled as required by NEC Code.

Test 0‐10VDC wiring from the fixtures for proper voltage and polarity of the DC control leads before
connecting to the WR20D‐EM relay.

Terminate the low voltage Class‐2 0‐10VDC dimming control leads using two #18AWG leads for EM and
Normal control to the fixtures. Keep Class‐2 wiring separate from line voltage runs per NEC Code
requirements.

Test the EM relay operation using the EM Test button on the relay.

To link the WR20D‐EM relay to LSG3‐W switches, refer to TB0401

For control of the WR20D‐EM from a LLEVO‐W controller refer to TB0402.
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