Battery Backup (Optional) - LiftMaster SL 600 Manual De Instalación, Operación Y Manutención

WIRING

Battery Backup (Optional)

The batteries are charged in the circuit by the integrated transformer. Recommended items for a battery
backup application (not provided):
• Two 12V 4Ah batteries (McNair Model RB-FM-12V-4AH)
• Battery box (Attwood Model 9069-1)
• 3 x 18 AWG (1.00 mm) VM-1 105˚C 600V, 1 wire must have a 10A/250V in-line fuse
1. Disconnect AC power to the operator.
2. Insert the battery power wires through the same hole as the AC power wires.
3. Connect the battery cable to the BATTERY terminals on the power board.
4. Install battery box in desired location (no further than 10 feet from the operator).
5. Place the batteries in the battery box.
6. Connect a jumper with an in-line fuse between the positive (+) terminal on one battery and the
negative (-) terminal on the other battery.
7. Connect the positive battery cable wire to the positive (+) terminal on the battery.
8. Connect the negative battery cable wire to the negative (-) terminal on the other battery.
9. Reconnect AC power to the operator.
10. Place cover on the operator.
CN7
CHCTR VBAT
POWER BOARD
+ -
BAT
Jumper with
10A/250V
in-line fuse
(not provided)
17