Diagnostic resolution for a 64 HP Daikin VRV IV system experiencing catastrophic U4 communication faults across 32 indoor cassette units. Our component-level lab engineers traced the fault to a lightning-induced surge on the master outdoor transmission PCB. Repaired IPM driver boards, replaced optical isolators, flushed Refnet piping, and brought the entire 40,000 sq.ft facility back online within 48 hours.
Commercial Multi-Zone VRV System Overhaul & PCB Recovery
🏭 IT Park Corporate Headquarters (Kharadi EON) 🏢 FinTech Global Solutions 📈 100% Cooling Restored | 48-Hour Rapid SLA | Zero Tenant Disruption