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Gree GMV-121WL/C-T User Manual

Gree GMV-121WL/C-T
173 pages
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DC INVERTER VRF SYSTEM SERVICE
MANUAL(R410A)

Table of Contents

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Gree GMV-121WL/C-T Specifications

General IconGeneral
Heating Capacity13.5 kW
RefrigerantR410A
Indoor Unit Dimensions (WxHxD)Varies by indoor unit type. Refer to specific indoor unit model.
Weight (Indoor Unit)Varies by indoor unit type. Refer to specific indoor unit model.
Noise Level (Indoor Unit)Varies by indoor unit type. Refer to specific indoor unit model.
Operating Temperature (Cooling)-5°C to 48°C

Summary

GREE VRF System Product Overview

Product Model List

Comprehensive list of outdoor unit models with their specifications, including cooling/heating capacity and power supply.

Outdoor Unit Nomenclature Explained

Decoding the model number structure for GREE VRF outdoor units.

Key Product Features

Highlights the advanced features of the DC Inverter Multi VRF System II.

Technical Specifications and Performance Data

Detailed specifications for cooling capacity, noise, power supply, and dimensions across various models.

Operating Range and Capacity Correction

Defines the cooling and heating operational temperature limits and capacity adjustment factors.

Principal of Operation Explained

Explains the refrigerant cycle and component functions within the VRF system.

Control System and Monitoring Capabilities

Unit Control System Diagram

Schematic of unit control logic and interpretation of sensors and switches.

Remote Monitoring System Setup

Introduction to the central management system for air conditioners via network.

Gree Commissioning Tool Kit Software

Guides on software installation, computer connection, and parts introduction for system configuration.

Installation Requirements and Procedures

Installation Preparation and Safety Notices

Ensures safe installation by covering preparation, personnel qualifications, and common installation problems.

Selection of Installation Materials

Specifies requirements for refrigerant piping, condensate water pipe, insulation, and communication cables.

Outdoor Unit Installation Best Practices

Covers checking, site selection, carrying, fixing, and damping procedures for outdoor units.

Installation Space Requirements for Outdoor Units

Defines minimum clearances around the outdoor unit for proper ventilation and maintenance.

Debugging, Malfunctions, and Troubleshooting

Unit Debugging and Test Run Procedure

Step-by-step guide for initial system setup, including preparation and debugging stages.

Malfunction Codes and Status Indicators

Lists all malfunction codes for wired controllers and status codes for outdoor unit indicators.

Troubleshooting Common System Errors

Provides flowcharts to diagnose and resolve issues like communication errors and protection triggers.

Component Removal and Replacement Procedures

Identification of Key VRF System Parts

Illustrates and describes the function of crucial components like the compressor and oil separator.

Outdoor Unit Panel and Fan Removal

Step-by-step instructions for disassembling the outdoor unit's panels and fan assembly.

Major Component Removal Procedures

Detailed guides for removing and replacing the compressor, 4-way valve, and electronic expansion valve.

System Maintenance and Testing

Vacuum Drying System Preparation

Guidelines for selecting and operating vacuum pumps for system drying.

Refrigerant Charging and Calculation

Procedure for calculating and adding refrigerant, including examples and notes on pipe length.

Airtightness Testing for Refrigerant Lines

Explains the importance, steps, and precautions for conducting a leak test on the refrigerant piping.

Exploded Views and Parts Identification

Visual guides showing the assembly of outdoor units and comprehensive lists of part codes.

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