BATTERY SYSTEM — BATTERY CHARGER SAFETY
Battery Charger Installation
All work should be completed by qualified persons familiar with the installation, construction and operation of generator sets. All work should be completed in accordance with the National Electric Code (NEC), Uniform Building Code (UBC) and other state or local codes.
If the battery charger installation is to be completed
1.Select a suitable mounting location for the battery charger. If indoors, the charger can be installed in a NEMA 1 or NEMA 2 enclosure. If outdoors, the charger must be installed in a NEMA 3R, outdoor enclosure.
2.Mount the battery charger as close to the engine starting batteries as possible.
3.If the battery charger is to be generator set mounted, the charger should be shocked mounted to reduce engine vibration. Failure to do so could cause premature battery charger failure.
4.Verify the correct operational voltage for the charger and ensure the feeder providing power to the charger is protected by an appropriately sized, UL approved, circuit protection device.
5.All wiring and conduits should be sized and installed per NEC requirements.
6.AC voltage input terminations should match the voltage requirements of the battery charger. Ensure the DC output voltage of the charger matches the battery charging system of the
7.Final DC wire terminations can be made by fitting the battery charger B+ (positive) to the B+ (positive) terminal on the engine electric starter mechanism. The battery charger ground (negative) should be fitted to the same lug where the engine starting battery ground cable is routed.
8.Secure all final battery charger connections (AC and DC) prior to energizing the circuit protection device feeding AC power to the charger.
9.Energize AC power and check the battery charger for proper operation.
Always be sure that the ground terminal provided on the battery charger is connected to a grounded wiring system.
Battery Charger Safety
The following safety precautions should always be used with MQ Power battery chargers.
zDO NOT operate if battery charger is dropped or otherwise damaged.
zDO NOT expose charger to rain or snow.
zDO NOT disassemble charger. Return to factory for service and repairs. Incorrect assembly may result in a risk of electric shock or fire.
zALWAYS
zDuring normal operation, batteries may produce explosive hydrogen gas. NEVER smoke, use an open flame, or create sparks near the battery or charger.
Changing the
If the charger is not working correctly, first check the following:
1.Is AC power available to the charger?
2.Is the charger connected to a battery of the correct voltage? (The charger must be connected to a battery for it to operate at the correct voltage.)
3.Is the charger damaged? (Check for debris, particularly metal, inside the charger enclosure.)
4.If the charger appears not to be working check the battery's state of charge. If the battery is fully charged it is sometimes normal for the charger to indicate zero current flow. Also check the battery for shorted or open cells.
5.If the battery is being overcharged or undercharged, check whether the output voltage settings have been tampered with. The potentiometers should be covered with either white adhesive paper dots or a hard red varnish.
6.If charger is still not working properly, call the factory for assistance.
INDUSTRIAL GENERATOR SETS — APPLICATION & INSTALLATION MANUAL — REV. #4 (09/07/07) — PAGE 59