Nelson SmartZone EZ Serie Guía De Instalación Y Programación página 7

INSTALLATION INSTRUCTIONS
For models 8504, 8506, 8508, 8512
With front panel open to provide access to the internal transformer, bring 110V wires up through
1/2" conduit hole in the bottom of the case. (For field connection, AC wires must have an
insulation rated at 75°C minimum). Conduit should be secured to the case (follow local codes).
Attach AC wires to transformer wires using wire nuts. Also, ensure earth ground wire is attached
to green with yellow stripe ground wire. Please check local codes for the grounding requirements
in your area. Bundle wire within cable tie loop and tighten cable tie to prevent loose wiring from
touching secondary circuits.The transformer is now wired. DO NOT turn on power yet.
For models 8574, 8576, 8578, 8582
With front panel open to provide access to the internal transformer, bring 220V wires up through
1/2" conduit into the left hole in the bottom of the case. (For field connection, AC wires must have
an insulation rated at 75°C minimum). Conduit should be secured to the case (follow local codes).
Connect AC wires to connector provided and tighten screws. Observe proper polarity of wires as
you install them (ie. L1, L2 and ground). Bundle wire within tie loop and tighten cable tie to prevent
loose wiring from touching secondary circuits. The transformer is now wired.
power yet.
NOTE: Failure to ground unit properly may cause severe damage to the controller and/or
personal property and will void warranty.
For models 8514, 8516, 8518, 8522:
The transformer has been pre-wired with a 6 foot AC power cord with grounding plug. We
recommend that you do not alter this connection. Replacement of this cord must follow local
codes and in all cases the unit must be properly grounded.
DO NOT turn on
6