Brand: DAIKIN
Category: Air Conditioning
Document Type: Installation Guide
Language: EN
Available Languages: EN , ES
Installation Guide for VRV
Uploaded: Sept. 12, 2025, 4:15 a.m.
Manual Publish Date: 2002-08-01
Warranty Information
Specifications are subject to change without prior notice.
This manual provides detailed instructions for the installation of DAIKIN VRV Systems. It covers the following key areas:
Introduction: Precautions on installation, procedures, and tools for refrigerant piping work, and installation of outdoor units.
Field Refrigerant Piping: Materials and insulation tips for inverter heat pump series.
Field Wiring: Covers wiring for cooling only/heat pump and inverter cooling only/heat pump series, including power supply, transmission wiring, and cool/heat selection. Also details wiring for heat recovery series and VRV plus systems.
Installation of Outdoor Units: Guidance on selecting the installation location and precautions during installation.
Introduction: Precautions on installation, procedures, and tools for refrigerant piping work, and installation of outdoor units.
Field Refrigerant Piping: Materials and insulation tips for inverter heat pump series.
Field Wiring: Covers wiring for cooling only/heat pump and inverter cooling only/heat pump series, including power supply, transmission wiring, and cool/heat selection. Also details wiring for heat recovery series and VRV plus systems.
Installation of Outdoor Units: Guidance on selecting the installation location and precautions during installation.
Troubleshooting and error codes
| Error Code | Description | Countermeasure |
|---|---|---|
| E0 | Gas leakage | • Check for refrigerant leakage at all piping connections. • Recharge refrigerant if necessary. |
| E1 | Communication error (Outdoor unit) | • Check wiring between outdoor units. • Check connection of connectors. |
| E2 | Communication error (Indoor unit) | • Check wiring between indoor and outdoor units. • Check connection of connectors. |
| E3 | Fan motor error | • Check fan motor for damage or obstruction. • Replace fan motor if necessary. |
| E4 | Indoor unit P.C. board error | • Check for loose connections. • Replace P.C. board if necessary. |
| E5 | Outdoor unit P.C. board error | • Check for loose connections. • Replace P.C. board if necessary. |
| E6 | Indoor unit temperature sensor error | • Check temperature sensor for damage. • Replace sensor if necessary. |
| E7 | Outdoor unit temperature sensor error | • Check temperature sensor for damage. • Replace sensor if necessary. |
| E8 | Drainage error | • Check drain pump and piping for blockage. • Ensure proper drainage. |
| E9 | Refrigerant overcharge/undercharge | • Check refrigerant level and adjust as necessary. |