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SV-625W N-type Bifacial

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Fitted right, first time

Professional installation

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Site preparation

  • Survey the roof or ground area for shading between 9 am and 3 pm — even partial shade on one module drags down the whole string.
  • Use a mounting structure rated for local wind loads, with rails spanning the module's clamping zones only (never clamp outside the marked zones).
  • Plan string wiring before lifting panels: keep string open-circuit voltage inside the inverter's MPPT limit at the coldest expected temperature.
  • For bifacial modules, elevate the array over a reflective surface to capture rear-side gain.

Safety first

  • Modules generate voltage whenever light hits them — treat every connector as live during daylight.
  • Work with fall protection on any roof; never carry a module in wind above 30 km/h.
  • Do not step on modules or drop tools on the glass — invisible micro-cracks permanently reduce output.
  • Earth the mounting structure and module frames per local code.

Commissioning checklist

  • Compare string Voc and operating current against the datasheet at similar irradiance.
  • Photograph the array and record string layout for the maintenance file.
  • Re-torque clamps and check cable dressing after the first month.

Installation sequence

  1. 1

    Install the mounting structure

    Fix rails to the roof structure or ground foundation, level and square. On tin roofs seal every penetration; on flat roofs use ballasted or anchored tilt frames at 10–25°.

  2. 2

    Lift and clamp the modules

    Each module weighs its rated weight — lift with two people. Clamp within the marked zones, torque clamps evenly, and leave a 10–20 mm gap between modules for thermal expansion.

  3. 3

    String the connectors

    Connect MC4 plugs in series along each row, dressing cables under the modules with UV-resistant clips — no cable should rest on the roof surface.

  4. 4

    Run home cables

    Route string cables through conduit to the PV isolator at the inverter. Keep positive and negative of the same string together to minimise induction loops.

  5. 5

    Test each string

    Measure open-circuit voltage per string (≈the datasheet Voc per module) and confirm polarity before connecting to the inverter.

This guide is a professional summary, not a substitute for the installation manual. Sole Verde supports certified installers across the region — ask us to connect you with one in your market.