12 | EN Copyright © Liberty Pumps, Inc. 2021
All rights reserved. 4414000E
1.5A Charger Connection
Terminal Block Connection
1. Two screws are provided for mounting charger in a clean dry
location away from battery box where it will be accessible.
2. Complete wiring connections as directed in Table 2.
3. Install 20 Amp fuse (provided) in terminal block.
Figure 8. Terminal Block
Battery Connection
Do not allow any person who is unqualified to have contact
with this pump system. Any person who is unaware of the
dangers of this pump system, or has not read this manual, can
easily be injured by the pump system.
Never allow the battery DC terminals to touch each other. This
can cause severe burns and start a fire. For added safety,
protect the battery in provided battery box.
Figure 9. Battery Charger
1. Install battery into battery box.
2. Check polarity of battery posts. POSITIVE (POS.,P,+) battery
post usually has a larger diameter than NEGATIVE (NEG.,N,−)
post.
Some batteries are equipped with 'Wing-Nut' terminals
allowing for easy placement of the terminals to these posts.
3. Connect POSITIVE (RED) charger terminal lead to POSITIVE
(POS.,P,+) battery post via access hole in battery box cover.
4. Tighten connection securely.
5. Connect the NEGATIVE (BLACK) charger terminal lead to
NEGATIVE (NEG.,N,−) battery post via access hole in battery
box cover.
6. Tighten connection securely.
IMPORTANT: Do not face battery when making final
connection.
7. Plug the charger into a 115/120 VAC electric outlet.
IMPORTANT: Do not use a switch-controlled outlet.
8. Mark circuit in main power panel “Back-up sump pump power
supply; do not turn off”.
9. With the charger properly connected and plugged in, the
panel on the front of the charger will show the power and
battery status.
Note: An alarm, located in the terminal block, automatically
sounds when the system runs if the alarm is enabled. The
alarm is silenced for 24 hrs when the ALARM DISABLED
button is pressed.
10. Secure the battery in the box with the provided hold-down
strap to prevent unwanted access to the battery.
11. When disconnecting charger, always do so in reverse
sequence of connecting procedure and break first connection
while as far away from battery as practical.
Table 2. Wiring Connections
Connection Terminal Block
Positive lead from Charger TO CHARGER [+] connection
Negative lead from Charger TO CHARGER [–] connection
Back-up pump Float Switch
(2 wires)
TO FLOAT SWITCH connection
(2 wires)
Positive lead from Pump TO PUMP [+] connection
Negative lead from Pump TO PUMP [–] connection
RISK OF SERIOUS INJURY OR DEATH
BATTERY HAZARDS
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