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Gree UMatch UMAT18HP230V1AC

Gree UMatch UMAT18HP230V1AC
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CEILING CASSETTE
INSTALLATION MANUAL
Models:
Indoor Unit Outdoor Unit
UMAT18HP230V1AC UMAT18HP230V1AO
UMAT24HP230V1AC UMAT24HP230V1AO
UMAT30HP230V1AC UMAT30HP230V1AO
UMAT36HP230V1AC UMAT36HP230V1AO
UMAT42HP230V1AC UMAT42HP230V1AO
UMAT48HP230V1AC UMAT48HP230V1AO
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Gree UMatch UMAT18HP230V1AC Specifications

General IconGeneral
BrandGree
ModelUMatch UMAT18HP230V1AC
CategoryAir Conditioner
LanguageEnglish

Summary

Safety Precautions

General Safety Precautions for Installation and Use

Provides essential guidelines for safe installation and operation of the system.

Nomenclature

Indoor Unit Model Number Explanation

Explains the coding system for indoor unit model numbers and their components.

Outdoor Unit Model Number Explanation

Details the coding system for outdoor unit model numbers and their components.

System Requirements

Refrigerant Line Lengths and Requirements

Specifies pipe sizes, maximum lengths, and elevation changes for refrigerant lines.

Refrigerant Charge Specifications

Details the type and amount of refrigerant charge required for different unit sizes.

Indoor Unit Electrical Requirements

Outlines voltage, circuit breaker, and wire size for indoor units.

Outdoor Unit Electrical Requirements

Specifies voltage, circuit breaker, and wire size for outdoor units.

Suggested Tools

System Parts

Indoor Unit Components

Identifies and illustrates the main parts of the indoor unit.

Outdoor Unit Components

Identifies and illustrates the main parts of the outdoor unit.

Standard Parts

Indoor Unit Accessories List

Lists and describes accessories included with the indoor unit.

Outdoor Unit Accessories List

Lists and describes accessories included with the outdoor unit.

Installation Site Instructions

Indoor Unit Installation Location Criteria

Guidelines for selecting an appropriate and safe location for the indoor unit.

Outdoor Unit Installation Location Criteria

Guidelines for selecting an appropriate and safe location for the outdoor unit.

Indoor Unit Dimensions

Laying Out Indoor Location

Steps for marking and preparing the ceiling for indoor unit installation.

Indoor Unit Installation

Indoor Unit Hanger Mounting Procedure

Details on securely mounting the indoor unit using hanger bolts.

Ceiling Cassette Installation Steps

Instructions for lifting and fastening the indoor unit to the hanger bolts.

Confirming Indoor Unit Position

Checks for proper alignment, levelness, and final securing of the indoor unit.

Outdoor Unit Installation

Outdoor Unit Condensate Drainage

Procedure for connecting the drain pipe to manage condensate water.

Piping Installation

Refrigerant Piping - Wall Hole Preparation

Steps for drilling and preparing the wall hole for refrigerant piping.

Refrigerant Piping Preparation and Insulation

Guidelines for preparing and insulating refrigerant pipes and condensate hoses.

Indoor Unit below Outdoor Unit Piping

Specific piping considerations for applications where the indoor unit is below the outdoor unit.

Indoor Unit Pipe Connections

Detailed steps for connecting refrigerant pipes to the indoor unit, including torque specs.

Outdoor Unit Pipe Connections

Detailed steps for connecting refrigerant pipes to the outdoor unit, including torque specs.

Indoor Condensate Drain Piping

Instructions for installing the condensate drain system for the indoor unit.

Power and Wiring Installation

Wiring Between Indoor and Outdoor Units

Diagram and instructions for connecting indoor and outdoor units electrically.

Indoor Unit Wiring Details

Specific instructions for indoor unit communication and power wiring.

Optional Tether Controller Wiring

Instructions for connecting the optional wired tether controller.

Outdoor Unit Wiring Details

Specific instructions for outdoor unit communication and power wiring.

Controller Installation and Setup (Optional)

Wired Tether Controller Installation Steps

Guidance for mounting and connecting the wired tether controller.

Indoor Room Sensor Configuration

Information on using dual indoor room sensors with the tether controller.

Ceiling Cassette Panel Display Overview

Explanation of indicators and display functions on the ceiling cassette panel.

Fresh Air Intake

Connecting Fresh Air Duct to Cassette

Instructions for installing a fresh air intake duct to the indoor unit.

Decorative Grille Installation

Mounting the Decorative Grille

Step-by-step guide for attaching and adjusting the decorative grille.

Testing and Inspection

Pipe Testing and Leak Detection

Procedures for testing refrigerant piping for leaks using nitrogen.

Additional Refrigerant Charging

Guidance on adding refrigerant for extended pipe lengths.

System Vacuum Procedure

Steps for evacuating the system using a micron gauge and vacuum pump.

Start-up Checklist

A comprehensive checklist for verifying system operation after installation.

Testing the Drain Piping

Procedure to test the condensate pump and drain system functionality.

Troubleshooting

Troubleshooting Common System Issues

Solutions for common problems like no restart, odors, water sounds, and fog.

Troubleshooting Unit Operation Problems

Solutions for issues like the system not running or inadequate heating/cooling.

Troubleshooting Water Leakage Issues

Addresses water leaks from the outdoor unit and indoor unit into the room.

Troubleshooting Airflow Problems

Diagnoses and resolves issues where the unit does not deliver air.

Diagnostic Codes

Error Codes E1-E8 Explanation

Details error codes for pressure, temperature, and communication failures.

Error Codes E9, F0-F5 Explanation

Details error codes for condensate overflow, sensor malfunctions, and compressor issues.

Error Codes ee, H3-H6, U7, P6, EE Explanation

Details error codes for board failures, overload protection, and communication issues.

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