How should an integrated unit be inspected after installation?

Verify the model, airflow, nameplate, purification modules and fan, then test fume leakage, noise, grounding, discharge, oil collection and disassembly for cleaning. Do not pay the final balance without installation records and discharge confirmation. Checklist: Define capacity, accuracy, materials and operating environment before requesting quotes on a uniform basis. Request specification sheets, test reports, certificates, maintenance manuals and spare-part lists. During acceptance, verify appearance, dimensions, functions, safety protection and packaging, and keep test records. Do not compare unit price alone; include customization, freight, spare parts, after-sales support and downtime risk. Keep written records of inquiries, confirmations, FAT, acceptance and warranty commitments.