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LG Multi V IV Series Service Manual

This document is the official Service Manual for LG's Multi V IV series of Heat Pump and Heat Recovery Variable Refrigerant Flow (VRF) outdoor units. It provides comprehensive technical information for professionals involved in the installation, operation, maintenance, and troubleshooting of these advanced HVAC systems.

Covering units with capacities ranging from 6.0 to 42.0 Tons, this manual details:

Safety precautions and installation guidelines.
Unit nomenclature and functional descriptions.
Detailed controls for operation, including basic, special, and protection controls.
Troubleshooting procedures for common errors and component diagnostics.
Error code tables for quick identification of system issues.
Specific guidance for Heat Recovery Units (HRU).

For additional technical resources, including submittals, engineering databooks, and installation manuals, please visit the official LG HVAC website at www.lghvac.com.

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