Chamberlain SL3000U Installation Manual page 16

STEP 6 continued...
POWER WIRING
1. Turn off the AC power from the main power source circuit breaker.
2. Run the AC power wires to the junction box on the operator.
3. Remove the junction box cover.
4. Connect the green wire to the earth ground rod and AC ground using a wire nut. NOTE: The earth ground rod can be grounded to the chassis.
5. Connect the white wire to NEUTRAL using a wire nut.
6. Connect the black wire to HOT using a wire nut.
7. Replace the junction box cover. Ensure the wires are not pinched.
8. Turn on the AC power switch (the AC power switch will turn the incoming 120/240 Vac power ON or OFF).
9. Connect ALL power to the operator.
AC Power Switch
AMERICAN WIRE GAUGE (AWG)
14
12
10
8
6
4
USE copper conductors ONLY.
INSTALLATION
Junction Box
MAXIMUM WIRE LENGTH (120 VAC)
130 feet (39.6 m)
205 feet (62.5 m)
325 feet (99.1 m)
520 feet (158.5 m)
825 feet (251.5 m)
1312 feet (399.9 m)
15
Junction Box Cover
MAXIMUM WIRE LENGTH (240 VAC)
260 feet (79.2 m)
410 feet (125 m)
650 feet (198.1 m)
1040 feet (317 m)
1650 feet (502.9 m)
2624 feet (799.8 m)