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8.
AINTENANCE
As Newmar power systems are state of the art electronic systems, little routine maintenance
is required.
8.1.
System
•
During normal operation the cable entries to the MCBs may loosen over time due to
movement in the cable strands. To avoid damage to the MCB's and cable entries due to
heat build-up and arching, it is recommended that the retaining torque is periodically
checked at least annually.
•
MCB's should be maintained at a torque of 2Nm.
•
All other connections should also be checked at this time.
8.2.
EM4x Controller
•
The controller can give a good indication of the condition of the system. Alarm logs can
show issues with the system and rectifiers and should be regularly checked.
•
As a minimum, check that the float voltage and load current is as expected.
•
If the batteries are fully charged, check the battery current is zero or near to zero amps,
and check that the amp-hours remaining is 100%.
8.3.
Rectifiers and Converters
•
During normal operation some dust will build-up on the front of the rectifiers. This should
be kept to a minimum by regularly wiping the rectifiers to avoid accumulation within the
rectifiers and blocking the airflow to the units. The positioning of the system and
surroundings will determine the regularity of this requirement.
•
In extremely dusty positions it is recommended that the units are removed and cleaned
with compressed air to prevent airflow blockages.
•
Check the air flow front and back to the rectifiers is unimpeded by cables or otherwise.
•
Check nothing has entered the rectifiers such as insects or geckos.
8.4.
Batteries
•
Battery maintenance depends on the individual manufacturer's specification, please
contact the battery supplier for recommendations.
•
Periodic discharge tests may be beneficial to ensure reliable system operation and may
be recommended by the battery manufacturer.
CAUTION - The user must be aware of the consequences of battery State of Health
(SoH) with regards their specific load requirements and implement their own policy
regards the end of life of the batteries.
8.5.
Ventilation Maintenance
Check that there has been no change in the required airflow space or environment that impacts
the ventilation.
Newmar • 1580 Sunflower Ave, Suite 100, Costa Mesa, CA 92626
Phone: 714-751-0488 • E-mail: techservice@Newmarpower.com
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