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FOR TECHNICAL SUPPORT: SOUTIEN TECHNIQUE : PARA COMUNICARSE CON EL SERVICIO TÉCNICO: [email protected] 877.230.7874

LI-835

A DIVISION OF

NSi INDUSTRIES, LLC

PROGRAMMING INSTRUCTIONS

SS721Z 

SS721ZA

CAUTION

Before wiring and servicing, power 

to this time switch and the equipment 

it controls must be turned off at the 

main panel. 

WARNING

Unit must be properly grounded to 

operate correctly.

RATINGS

        • 120/277VAC 16A, 1920/4432W Resistive

        • 120/277VAC 13A, 1560/3600VA Ballast

        • 120VAC 8A, 960W Tungsten

        • 120VAC 1 HP

SS721Z SMART TIMER

INSTALLATION

1.

 Connect black and blue wires as shown in the diagram. 

     Cap the red wire.

2

. Connect the mounting strap green wire and timer green 

     wire to the ground wire.

3.

 Mount the timer inside electrical box using 2 mounting 

     screws provided. 

4.

 Install cover plate. 

5.

 Turn power on at the electrical panel.

RETROFITTING A SS721Z 

TO EXISTING 3-WAY SWITCH

1.

 Disconnect the second 3-way switch. 

2.

 Connect the timer blue wire to the load. Connect the timer

     black wire to “Traveler A” and the timer red wire to   

     “Traveler B”. 

3.

 Connect the mounting strap green wire and timer green 

     wire to the ground wire.

4.

 Mount the timer inside electrical box using 2 mounting 

     screws provided. 

5.

 At switch #1 connect a wire between the hot leg of the 

     3-way and “Traveler A” inside of that switch’s gang-box. 

6.

 Install cover plates. 

7.

 Turn power on at the electrical panel.

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