Udemy – VRV/VRF System Pipe Sizing

Course Title:

VRF / VRV System Design and Pipe Sizing (Daikin)

Module 1 – Introduction

• VRF (Variable Refrigerant Flow) definition
• VRV (Variable Refrigerant Volume) definition
• Terminology difference (VRV patented by Daikin)
• Applications & benefits
• One outdoor can connect >60 indoor units

Module 2 – Components & Refrigerants

• Compressors:
  • Digital Scroll Compressor
  • Inverter Scroll Compressor
• Refrigerants: R-410A, R-407C, R-32, R-454B
• VFD (Variable Frequency Drive) operation
  • Power frequency relation to compressor speed

Module 3 – System Types

• Cooling Only VRF
  • Variable speed scroll compressor
  • Electronic Expansion Valve (EEV)
• Heat Pump VRF
  • Cooling or heating (not simultaneous)
  • Uses 4-way Reversion Valve & NRV
• Heat Recovery VRF
  • 3-pipe system
  • Cooling & heating simultaneously

DOWNLOAD LINK: VRV/VRF System Pipe Sizing

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