ABB MICRO-0.25-I-OUTD-US-208/240, Product Manual

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008CC3
3 - Mounting and wiring
A
ssembly instructions
1. Run the AC cable along the racking system used for installing the photovoltaic modules.
The cable must be compatible with the expected installation conditions, particularly
concerning the number of modules and their orientation (portrait or landscape).
Legislation in force in the country of installation and the installed power will determine
the maximum number of MICRO inverters permitted for installation at each AC cable
section.
Do NOT exceed the maximum number of MICRO inverters permitted for installation!
(See technical data found in the appendix, part 7, of this manual.)
2. Secure the MICRO inverter to the racking system with the logo side facing downwards.
‡
Torque the MICRO inverter fasteners to the values shown below, do not over torque.
6 mm (1/4”) mounting hardware: 5 N m (45 to 50 in-lbs).
8 mm (5/16”) mounting hardware: 9 N m (80 to 85 in-lbs).
‡
Mark the approximate center of each photovoltaic module on the frame in order to facilitate positioning.
3. The inverter and photovoltaic modules must be connected to a DC
grounding electrode conductor in accordance with the pertinent legislation in
force in the country of installation.
The inverter can be earth grounded using the clamp secured to the chassis
and an adequately-sized conductor.
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the following pages.
The equipment grounding conductor is incorporated in the AC trunk cable.
Incorrect grounding can cause physical injury, death or equipment malfunction and
increase electromagnetic interference.
Make sure that grounding conductors are adequately sized as required by safety
regulations.