R-Pro › Field cases › Air conditioning
Install Handover — 15-Photo Checklist
Likely causes
Dispute/rework prevention = mandatory install photos
Check: **15-photo standard checklist**: ① Nameplate (model/serial). ② Pre-install exterior (full layout). ③ Pre-install electrical (panel/breaker). ④ Liquid/gas line (insulation, flare, torque applied). ⑤ Vacuum gauge -100.7 kPa achieved. ⑥ Manifold gauge running pressure. ⑦ Commissioning sheet (pressure/temp/time). ⑧ IR thermometer ΔT. ⑨ Leak test (electronic/UV/nitrogen showing 0). ⑩ Drain line (flowing, no reverse slope). ⑪ Outdoor location (60cm+ clearance, front view). ⑫ Indoor level (level shown). ⑬ Receipt/install register number. ⑭ User demo (remote operation). ⑮ User + tech together (handover signature).
What to do: **Management/Storage**: ① **KakaoTalk/email** = send to customer immediately (receipt timestamp = legal evidence). ② **Cloud (Drive/Dropbox)** = self-keep 5 yr (1 yr after warranty too). ③ **Naming**: 'date_customer_product_photoNo' (e.g., 20260517_KimXX_LGSH13py_05.jpg). ④ **Self-service install management app** or 'R-Pro install management' (auto checklist). **In dispute**: 15-photo evidence = instant resolution. Korea Consumer Agency: 'no photo, no processing' (2024 policy).
Korea install photos = 5-yr retention = same as VAT (sole prop 5 yrs). Auto-backup Google Drive 15GB free, 100GB ~₩3k/mo. Cloud 2FA mandatory. Send photos with self-install watermark (copyright + evidence). User (Gangneung) sub-zero Jan: own PDF checklist form = +50% efficiency.
All 565 cases work offline in R-Pro, with error codes for 62 brands and P-T data for 108 refrigerants.
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