2.0 Installation
Environment
• The inverter (or combi) must be placed in a dry, well ventilated and dust free location.
• Place the unit as close as possible to the battery in order to keep the battery cables as short as possible.
• Do not place the unit in same compartment as the batteries.
• Make sure that water or dust can not enter the cabinet.
• Ensure that the air flow from fan is not obstructed.
• Avoid mounting the device next to flammable materials.
Mounting the device
• The unit can be mounted on a wall, or flat mounted (4 x Ø5mm holes)
• Optimum cooling is obtained in vertical position.
• Make sure that each wire used in the installation has at least the same intersection and correct length, as
given in this manual!
• During wiring, use standard cable fixtures and wire ducts, do not bent extremely the cables/wires, and
avoid sharp edges to prevent the isolation of the wires/cables from cutting and abrasion.
•
Keep in mind that usage of too long battery cables and dirty or loose connections may produce a
significant voltage drop which would cause that the device shut down for under voltage, even if the
battery is ok!
2.1 DC cables
EMC
• The wiring of the cables is influencing the EMC behavior of the system, in which the inverter is a
component. This is due to the fact that the cables are receiver and transmitter antennas of radio frequency
electromagnetic interference.
• Good EMC properties are obtained in the following way: Place the cables in a metal rail. The metal offers
resistance against interference currents. The battery cables should be placed close to each other to reduce
looping area. Cables from different groups should not be twisted, but be placed parallel with each other.
Recommended cable
• The table bellow is given by a criterion to keep the total cable voltage drop lower than 250mV at max
nominal power delivered by the combi.
Note:
When starting up heavy load with high inrush current (compressors, motors, etc) it is
recommended to use cables with a even higher intersection (or shorter length) to prevent under-voltage
shut-down of the device
.
• The cable length (up to 3 meter) between the battery and the combi must be sized according to the table
below:
Note: Avoid cables longer than 3 meters between battery and combi!
Note: Cable length are defined per each cable (or as the distance between battery and combi)
mm2
AWG
1012-50
1312-80
1512-80
2012-100
1024-30
1524-40
2324-50
15
5
-
-
-
-
1.5m
-
-
25
3
1.5m
-
-
-
2.5m
1.5m
-
35
2
2m
1.5m
1.5
-
3m
2.5m
1.5m
50
1/0
3m
2m
2m
1.5m
-
3m
2m
70
2/0
-
3m
2.5m
2m
-
-
3m
