LiftMaster RSL12U RSL12U Installation Manual - Page 18

AH BATTERY, To use a 33AH battery in place of the 7AH battery, follow

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INSTALLATION STEP 6 continued... POWER WIRING 7AH BATTERY 1. Unplug the transformer. 2. 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. 3. Connect the red wire from the J15 plug to the positive (+) terminal of the battery. 4. Connect the black wire from the J15 plug to the negative (-) terminal of the battery. 5. 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. 6. Plug in the transformer. Red (+) J15 Plug (solar wires) Black (-) 7AH Battery To use a 33AH battery in place of the 7AH battery, follow the instructions below. The 33AH application requires the 33AH wire harness (Model K94-37236). 33AH BATTERY 1. Unplug the transformer. 2. 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. Discard this J15 plug and harness. 3. Connect one end of the red (+) wire from the new 33AH wire harness kit to the red wire from the new J15 plug as shown. Connect the other end of the red (+) wire to the positive (+) terminal on the battery as shown. 4. Connect one end of the black (-) wire from the new 33AH wire harness kit to the black wire from the new J15 plug as shown. Connect the other end of the black (-) wire to the negative (-) terminal on the battery as shown. 5. Reconnect the new J15 plug to the control board. NOTE: You may see a small spark when plugging the J15 plug into the board. 6. Plug in the transformer. 17 Red (+) Red (+) wire from new wire harness kit J15 Plug (new wire harness, Model K94-37236) (solar wires) Black (-) Black (-) wire from new wire harness kit 33AH Battery

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17
J15 Plug
STEP 6 continued...
POWER WIRING
7AH BATTERY
1.
Unplug the transformer.
2.
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.
3.
Connect the red wire from the J15 plug to the positive (+) terminal of
the battery.
4.
Connect the black wire from the J15 plug to the negative (-) terminal
of the battery.
5.
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.
6. Plug in the transformer.
INSTALLATION
Red (+) wire
from new wire
harness kit
Black (-) wire
from new wire
harness kit
To use a 33AH battery in place of the 7AH battery, follow the
instructions below. The 33AH application requires the 33AH wire
harness (Model K94-37236).
33AH BATTERY
1.
Unplug the transformer.
2.
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. Discard this J15 plug and harness.
3.
Connect one end of the red (+) wire from the new 33AH wire harness
kit to the red wire from the new J15 plug as shown. Connect the other
end of the red (+) wire to the positive (+) terminal on the battery as
shown.
4.
Connect one end of the black (-) wire from the new 33AH wire
harness kit to the black wire from the new J15 plug as shown.
Connect the other end of the black (-) wire to the negative (-) terminal
on the battery as shown.
5.
Reconnect the new J15 plug to the control board.
NOTE:
You may see
a small spark when plugging the J15 plug into the board.
6. Plug in the transformer.
Red (+)
Black (-)
(solar wires)
7AH Battery
J15 Plug
(new wire
harness, Model
K94-37236)
Red (+)
Black (-)
(solar wires)
33AH Battery