9
Warning
The controller may only be connected to the local loads and the battery by trained personnel and in
accordance with the applicable standards and regulations.
Ensure that no cables are damaged.
At a voltage of 65V, particularly with regard to module open circuit voltage, the entire solar energy system
must be installed with protection class II. Cover solar modules during installation
Use only insulated tools.
1. Mounting the solar charge controller
1.1 Do not mount the solar charge controller outdoors or in wet rooms
1.2 Do not subject the solar charge controller to direct sunshine or other source of heat.
1.3 Protect the solar charge controller from dirt and moisture.
1.4 Maintain a minimum clearance of 15cm below and around the device to ensure unhindered
air circulation
1.5 Mount the solar controller as close as possible to the batteries (with a safety clearance of at least
35cm).
2. Fix the solar charge controller
2.1 Mark the position of controller fix holes on the walls;
2.2 Drill 4pcs Ø6mm holes and insert dowels.
2.3 Fix the controller to the wall with the cable openings facing downwards, using 4 oval head
screws M4x35 (DIN 7996).
Grounding
Grounding MP-3739 is not technically required when installing a stand alone solar system. However, if
required, common grounding of the negative of the PV array, battery and load control output is OK
for negative earth electrical systems (such as a caravan or motor-home).
Caution: MP-3739 can ground the negative
negative only
only
.
Install the solar system and operating mode
Connect the wires in the sequence from 1 to 6 according the above diagram.
Disconnect the wires in the REVERSE sequence from 6 to 1 according the above diagram.
Use with 12V or 24V batteries, controller will detect voltage of battery automatically.
Never exceed the nominal ratings for solar panel array: 360 Watts with 12 Volt battery/ 720
Watts with 24 Volt battery (see below technical data for reference).
Suggested cable length, 10m solar panel connection cable/2m battery connection cable/5m load
connection cable
