Magnum-energy MMS Series User Manual download pdf (Page 24)

2.3 Battery Bank Wiring

WARNING: Lethal currents will be present if the positive

and negative cables attached to the battery bank touch

each other. During the installation and wiring process,

ensure the cable ends are insulated or covered to prevent

touching/shorting the cables.

Info: DO NOT connect the DC wires from the battery

bank to the inverter until: 1) all DC/AC wiring is complete,

2) the correct DC and AC overcurrent protections have

been installed, and 3) the correct DC voltage and polarity

have been veriﬁ ed.

Info: For optimum performance, a minimum battery bank

of 200 AHr is recommended.

Depending upon the type of batteries you use in the installation

(6 or 12 VDC), the batteries must be wired in series, parallel, or

series-parallel (see Appendix B – Battery Information for guidance

on wiring batteries together). The interconnecting DC wires must be

sized and rated exactly the same as those that are used between

the battery bank and the inverter.

Place the batteries as close as practical to the inverter, preferably in

an insulated and ventilated enclosure. Allow adequate space above

the batteries to access the terminals and vent caps (as applicable).

Also, allow at least 1” (2.5 cm) of space between the batteries to

provide good air ﬂ ow. DO NOT mount the batteries directly under

the inverter.

Info: To ensure the best performance from your inverter

system, do not use old or untested batteries. Batteries

should be of the same size, type, rating, and age.

CAUTION: Install batteries in a well ventilated area. Bat-

teries can produce explosive gasses. For compartment or

enclosure installations, always vent batteries to the outside.

2.3.1 Inverter to Battery Bank Wiring

WARNING: Ensure all sources of DC power (i.e., batter-

ies) and AC power (shorepower or AC generator) are de-

energized (i.e., breakers opened, fuses removed) before

proceeding.

Installation

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Magnum-energy MMS Series User Manual Page 24