Field Documentation, Inspection Assistance, and Customer Interaction

Field Documentation, Inspection Assistance, and Customer Interaction

As a PV installer, your job does not end when the last module is bolted down. Three critical tasks follow every installation: creating accurate as-built documentation, supporting the Authority Having Jurisdiction (AHJ) inspection, and walking the customer through their new system. Each task protects the homeowner, the installing company, and your professional reputation.

Producing Accurate As-Built Markups

The permit-set drawings submitted to the AHJ describe the planned installation. Field conditions—an unexpected rafter location, a conduit rerouted around an obstacle, a combiner box moved six feet—mean the finished system rarely matches the plans exactly. As-built markups record what was actually built.

Use red-line markup pens on a printed copy of the approved permit drawings, or use your employer's digital markup tool on a tablet. Work through every sheet systematically:

• Conductor routing: Trace every home-run, home-run conduit, and grounding conductor as installed. Note conduit type, fill, and wire gauge if they differ from the permit set.
• Equipment placement: Mark the actual location of the inverter, combiner box, disconnect, meter socket, and rapid-shutdown device. Measure and dimension from fixed reference points (corners of the building, service entrance) so another technician can find each device without guessing.
• Field changes: Annotate any deviation from the approved design—module layout adjustments, string configuration changes, or structural attachments moved to a different rafter bay. Each change needs a brief note explaining why it was made.
• Revision cloud and delta: Draw a revision cloud around every changed area and add a triangle with a revision number in the title block. This is standard drafting practice and lets the inspector quickly find what changed.

Submit your completed markup to the supervising installer for review before the inspection. Errors caught in-house are far less costly than correction orders issued by an inspector. Never submit drawings you have not personally verified against the physical installation.

Assisting During the AHJ Inspection

The AHJ inspector's job is to verify that the installation complies with the adopted electrical code, the fire code, and the approved permit drawings. Your job during the inspection is to support the supervising installer professionally.

Before the inspector arrives:

• Ensure all access panels, junction box covers, and conduit fittings are in place and fastened.
• Have the permit, approved drawings, and your as-built markup ready to hand to the inspector.
• Clear the working space around the electrical equipment to the minimum clearances required by the National Electrical Code (NEC).
• Confirm that all labeling required by the NEC—including rapid-shutdown labels, interactive system supply labels, and back-fed breaker labels—is present and legible.

During the inspection:

• Stand by and answer the inspector's questions honestly, within the limits of your knowledge. If you are unsure, say so and defer to the supervising installer. Never guess or invent an answer for an inspector.
• Take notes on every item the inspector flags as a correction. Record the exact location, the code section cited if the inspector gives one, and the required corrective action.
• Treat the inspector courteously. They are performing a public-safety function.

After the inspection:

• Log all correction items in the project folder immediately while details are fresh.
• Assist in scheduling and completing corrections before the re-inspection.

Leading the Customer Walk-Through

The customer walk-through is your final quality gate and often your last direct contact with the homeowner. A confident, clear walk-through builds trust and reduces service calls.

Inverter display operation: Show the customer the inverter's status lights or LCD display. Explain what a normal operating state looks like (producing power, grid connected) versus a fault or sleep state. Describe how output varies with sunlight and temperature—this prevents alarm calls on cloudy days.

Monitoring app setup: Walk the customer through downloading the app and logging in to their monitoring account on their own device before you leave. Show them where to find today's production, historical data, and any alert notifications. A customer who can read their own data is an informed, satisfied customer.

Rapid-shutdown switch location: Walk the customer to the rapid-shutdown initiating device and explain its purpose: in an emergency, first responders or the homeowner can de-energize the roof conductors from a safe location. Stress that they should never cover or disable it.

Service contacts: Provide written contact information for warranty service, monitoring support, and the utility. Explain what situations warrant each call. Make clear that DC conductors on the roof remain energized whenever sunlight hits the modules—no homeowner should touch array wiring.

Document everything: Use the customer communication checklist to confirm each topic was covered. Have the customer sign it, keep a copy in the project folder, and offer a copy to the customer. Document any questions the customer asks and your answers; unusual questions may signal a design or installation issue worth reporting.

Safety Reminders

Even during documentation and inspection activities, stay alert to live electrical hazards. The system may be energized on the DC side any time the array is exposed to light. Wear appropriate PPE near open electrical enclosures. Follow your employer's lockout/tagout (LOTO) procedures any time you need to open a live enclosure for the inspector. Never bypass LOTO to speed up an inspection.