RD Series Owner's Manual - Magnum Energy
RD Series Owner's Manual - Magnum Energy
RD Series Owner's Manual - Magnum Energy
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Installation<br />
Table 2-2, DC Wire Size For Increased Distance (in free air)<br />
Inverter<br />
Model<br />
Minimum Recommended DC Wire Size (one way)*<br />
1-3 feet 3-5 feet 5-10 feet<br />
<strong>RD</strong>2212 #4/0 AWG (107.16 mm 2 ) #4/0 AWG x2 (107.16 mm 2 ) not recommended<br />
<strong>RD</strong>1824 #2/0 AWG (67.4 mm 2 ) #2/0 AWG (67.4 mm 2 ) #4/0 AWG (107.16 mm 2 )<br />
<strong>RD</strong>2824 #4/0 AWG (107.16 mm 2 ) #4/0 AWG (107.16 mm 2 ) #4/0 AWG x2 (107.16 mm 2 )<br />
<strong>RD</strong>3924 #4/0 AWG (107.16 mm 2 ) #4/0 AWG x2 (107.16 mm 2 ) not recommended<br />
* Copper wire rated with 90°C (194°F) insulation at an ambient temperature of 30°C (86°F).<br />
2.4.3 DC Cable Connections<br />
Do not put anything between the DC cable ring lug and the battery terminal post or the flat metal<br />
part of the inverter’s DC terminal. When connecting the DC cable to the battery or inverter DC<br />
terminals, the cable should be placed directly against the inverter or battery terminals. Incorrectly<br />
installed hardware causes a high resistance connection, which could lead to poor inverter/charger<br />
performance and may melt the cable and terminal connections.<br />
Follow the examples in Figures 2-5 and 2-6 to connect the DC cables and stack the hardware<br />
correctly. Tighten the terminal connections from 10 to 12 ft lbf (13.6 to 16.3 N-m).<br />
CAUTION: The DC terminal and Kep nuts are made of stainless steel, which has a high<br />
likelihood of seizure. To help prevent the bolt and nut from seizing — causing the bolts<br />
to strip or snap/break-off — the use of anti-seize lubricant is highly recommended.<br />
Info: If antioxidant grease or spray is used, apply it after all the connections have been<br />
made and are properly tightened.<br />
Info: A 1/2-inch wrench or socket is used to tighten the 5/16 SAE Kep nuts.<br />
nut<br />
split<br />
washer<br />
flat<br />
washer<br />
Battery<br />
Temperature<br />
Sensor<br />
CAUTION:<br />
Ensure nothing is<br />
placed between<br />
the DC terminal<br />
and the ring lug.<br />
battery cable<br />
(with ring lug)<br />
CAUTION:<br />
Ensure nothing is<br />
placed between<br />
the cable ring lug<br />
and the battery<br />
post.<br />
battery<br />
post<br />
Inverter DC<br />
terminal<br />
(5/16 -18" bolt,<br />
5/8" length)<br />
battery cable<br />
(with ring lug)<br />
5/16 -18"<br />
Flange or<br />
Kep nut<br />
Figure 2-5, Battery Hardware<br />
Installation<br />
© 2010 <strong>Magnum</strong> <strong>Energy</strong>, Inc.<br />
Figure 2-6, Inverter DC Hardware<br />
Installation<br />
Page 16
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