LiftMaster HCTDCU HCTDCU Installation Manual - Page 16

Connect Batteries And Attach Antenna

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WIRING STEP 7 CONNECT BATTERIES AND ATTACH ANTENNA The batteries are charged in the circuit by the integrated transformer. The batteries are for battery backup. 1. Unplug the J15 plug labeled BATT on the control board by squeezing the plug and pulling it from the control board. This disconnects the ac/dc power to the control board. 2. Loosen the screws on the battery cover and rotate out of the way. 3. Connect the red wire to the positive (+) terminal on one battery and connect the black wire to the negative (-) terminal on the other battery. 4. Connect the black jumper (included with the batteries) between the positive (+) terminal of one battery to the negative (-) terminal of the other battery. 5. Insert the batteries as shown. 6. Reattach the battery cover. 7. Plug the J15 plug back into the control board. This will power up the control board. NOTE: You may see a small spark when plugging the J15 plug into the board. 8. Attach the provided antenna in the orientation shown. ONLY use the provided antenna. 9. Turn ON AC power to the operator. 10. Turn ON the AC power switch on the operator. Red Wire (+) Black Wire (-) Black jumper provided with batteries Provided Antenna J15 Plug 16

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16
WIRING
STEP 7
CONNECT BATTERIES AND ATTACH ANTENNA
The batteries are charged in the circuit by the integrated transformer. The batteries are for battery backup.
1.
Unplug the J15 plug labeled BATT on the control board by squeezing the plug and pulling it from the control board. This disconnects the ac/dc
power to the control board.
2.
Loosen the screws on the battery cover and rotate out of the way.
3.
Connect the red wire to the positive (+) terminal on one battery and connect the black wire to the negative (-) terminal on the other battery.
4.
Connect the black jumper (included with the batteries) between the positive (+) terminal of one battery to the negative (-) terminal of the
other battery.
5.
Insert the batteries as shown.
6.
Reattach the battery cover.
7.
Plug the J15 plug back into the control board. This will power up the control board.
NOTE:
You may see a small spark when plugging the J15 plug
into the board.
8.
Attach the provided antenna in the orientation shown. ONLY use the provided antenna.
9.
Turn ON AC power to the operator.
10. Turn ON the AC power switch on the operator.
Black jumper
provided with
batteries
Black Wire (-)
Red Wire (+)
J15 Plug
Provided
Antenna