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Please note the following about PWM controllers running in 24V configuration:
24V panels or 12V panels configured in series to make 24V should be used with 24V
battery system only
It is not recommended that you charge a 12V battery system with a 24V solar array. Doing
so will result in a performance loss of 50%.
The solar array should not max out the rated power of the controller. Failure to obey this
rule may result in the controller overheating or catching fire.
7.2 Overall system connections
Please refer to
Figure 7.1
for the overall wiring diagram for a 24V system.
Figure 7.1
Completed 24V off-grid system
As you can see from
Figure 7.1
, the batteries are configured in 24V by placing two
identical
12V
batteries in series. Likewise, the solar array is configured in 24V by placing two
identical
12V
panels (e.g. RNG-100D) in series.
The connections for a 24V off-grid system are very similar to those of a 12V connection. The
process should be followed in the same way as outlined in
Sections 6.1 to 6.4
. The only
difference is that the fuse selection changes, since a series connection increases the system Voc
to ~45v. Therefore a fuse with a voltage rating of
50v or higher
is recommended, since Maxi and
ATO blade fuses have a maximum voltage rating of 32v.
With this being said, the same steps for a 12V system should be followed. Please read
Sections
6.1 to 6.4
.
Содержание Off-Grid Kit
Страница 8: ...8 Wiring 1 Unscrew battery terminals and connect battery connections...
Страница 10: ...10 4 Insert battery remote sensor block terminal and connect wires POLARITY SENSITIVE...
Страница 16: ...16...
Страница 17: ...17 Repeat for each Z Bracket in the set at each corner...
Страница 18: ...18...
Страница 20: ...20...
Страница 21: ...21 NOTE Orient panel in level plumb layout as desired before fixing in position...
Страница 23: ...23 Repeat for all brackets NOTE Seal around all edges of bracket and screws...
Страница 26: ...26 NOTE Mark all holes locations in this step as the panel must be removed for well nut insertion...
Страница 27: ...27...
Страница 29: ...29 NOTE Orient panel in level plumb layout as desired before fixing in position...
Страница 30: ...30 Repeat for all fasteners NOTE Screw has compressed and expanded the well nut binding into the roof material...
Страница 36: ...36 NOTE Start lag bolt threading by hand...
Страница 37: ...37 Rail System Construction 2 1...
Страница 38: ...38 4 3...
Страница 39: ...39 6 5...
Страница 40: ...40 Repeat for all continuous rail sets Rail Seating 7 1...
Страница 41: ...41 3 2...
Страница 42: ...42 5 4...
Страница 43: ...43 Panel Securement WARNING End clamps must be installed a minimum of 1 30 mm from the rail edges 6 1...
Страница 44: ...44 3 2...
Страница 45: ...45 5 4 NOTE Ensure that the End Clamp is spaced a minimum distance of 1 25 from rail end face...
Страница 46: ...46 Continue mid clamp procedure for each additional panel 6 7...
Страница 55: ...55 Figure 7 Figure 8...