Chamberlain RSL12U Installation Manual page 17

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 operator.
3. Unplug the transformer.
4. Remove the junction box cover.
5. Run the AC power wires through the knockout in the bottom of the
electrical box.
6. 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.
7. Connect the white wire to NEUTRAL using a wire nut.
8. Connect the black wire to HOT using a wire nut.
9. Replace the junction box cover. Ensure the wires are not pinched.
10. Plug in the transformer.
11. Turn ON AC power to the operator.
INSTALLATION
Junction Box Cover
16
OPERATOR POWER SOURCE
DIRECT PLUG-IN TRANSFORMER (120 VAC)
Wire Gauge 14
Wire Gauge 12
Wire Gauge 10
EXTERNAL PLUG-IN TRANSFORMER (24 VAC)
Wire Gauge 18
Wire Gauge 16
Wire Gauge 14
Wire Gauge 12
Wire Gauge 10
NOTE: Use copper conductors ONLY.
1150 feet (351 m)
1850 feet (564 m)
2950 feet (899 m)
OR
150 feet (46 m)
250 feet (76 m)
400 feet (122 m)
600 feet (183 m)
1,000 feet (305 m)