Owners Manual

© 2015 Sensata Technologies 21
Operation
3.4 System Maintenance
Battery Charging
When possible, recharge your batteries when they are about 50% discharged
or earlier. This gives them a much longer life cycle than recharging when
they are almost completely discharged.
WARNING: Prior to performing these checks, switch both the AC
and DC circuits off.
• Visually inspect batteries for cracks, leaks, or swelling—replace if
necessary.
• Use baking soda to clean and remove any electrolyte spills or buildups
• Check and tighten all battery hold-down clamps.
• Clean and tighten (10 to 12 foot-pounds) all DC terminals (battery and
inverter) and connecting cables.
• Check and fi ll battery water levels (Liquid Lead Acid batteries only).
• Check individual battery voltages (replace those that vary more than
0.3 VDC of each other).
• Check all cable runs for signs of chafi ng—replace if necessary.
• Check the inverter’s cooling vents—clean as necessary.
RV/Marine Off-Season Storage
When placing your coach or boat into seasonal storage, it is recommended
that you perform the following to ensure the system is properly shut down
(or properly confi gured for seasonal storage). This is especially important
for maintaining the batteries.
• Perform the recommended maintenance steps noted above.
• Fully charge the batteries.
• Connect shorepower (if available) and verify that the breaker to the
battery charger is switched ON.
• Verify the inverter is switched OFF.
• Switch OFF all unnecessary AC and DC loads.
Inverter Maintenance
Routine maintenance is required to keep the CMW Series inverter operating
properly. Periodically you should:
• Clean the exterior of the unit with a damp cloth to prevent the
accumulation of dust and dirt.
• Tighten the screws on the DC input terminals.