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Daikin RZQG125L8Y1B User Manual

Daikin RZQG125L8Y1B
215 pages
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Service Manual
GQI-Eco Series
Heat Pump R-410A 50Hz
Smart RZQG71~140L9V1
RZQG71~125L9Y1 / RZQG140LY1
Classic RZQSG71L3V1 / RZQSG100~140L9V1
RZQSG100~125L8Y1 / RZQSG140LY1
ESIE15-13B

Table of Contents

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Questions and Answers:

Daikin RZQG125L8Y1B Specifications

General IconGeneral
BrandDaikin
ModelRZQG125L8Y1B
CategoryAir Conditioner
LanguageEnglish

Summary

1. Introduction

1.1 Version log

Records changes made in different versions of the manual.

1.2 Safety Cautions

Provides essential safety warnings and precautions for operation and maintenance.

1.3 Used Icons

Explains the meaning of various icons used throughout the manual.

1.4 Preface

Thanks customers and introduces the service manual's scope.

Part 1 - General Information

1. Model Names of Indoor / Outdoor Units

Lists indoor and outdoor unit model names and their combinations.

2. Outlook Outdoor Units

Shows visual representations of different outdoor units.

3. Operating range

Details the operational temperature ranges for cooling and heating.

Part 2 - Remote Controller

Wired Remote Controller Operations

Covers applicable models, names, functions, and settings for wired remote controllers.

Wireless Remote Controller Operations

Covers applicable models, functions, and settings for wireless remote controllers.

Service and Inspection Modes

Details procedures for accessing and using service and inspection modes for diagnostics.

Part 3 - Function and Control

1. Function of Main Components and Thermistors

Explains the function of key components and thermistors in the system.

2. Operation Flow Chart

Provides flowcharts illustrating cooling/dry and heating operation sequences.

2.1 Cooling / Dry Operation

Illustrates the operational flow for cooling and dry modes.

2.2 Heating Operation

Illustrates the operational flow for heating mode.

3. Function Details

Provides detailed explanations of various unit functions.

3.1 Indoor Unit

Details functions and controls specific to the indoor unit.

3.2 Outdoor Unit

Details functions and controls specific to the outdoor unit.

Part 4 - Field Setting

Test Operation Procedures

Guides through pre-run checks, controller confirmation, and test run execution.

Remote Controller Field Settings

Explains field setting procedures using wired and wireless remote controllers, including specific models and settings.

Outdoor Unit PCB Field Settings

Details how to perform field settings using DIP switches and buttons on the outdoor unit PCB.

Emergency Operation Procedures

Outlines methods for operating the unit in emergency situations, including forced operation.

Part 5 - Service Diagnosis

Symptom-based Troubleshooting

Provides solutions for common operational symptoms and issues, categorized by problem type.

Troubleshooting by LED Indications

Guides troubleshooting based on LED indicators on the indoor and outdoor units.

Troubleshooting by Remote Controller

Provides methods for troubleshooting errors displayed on the remote controller, including self-diagnosis, error codes, and specific component issues.

Part 6 - Appendix

1. Piping Diagrams

Contains diagrams illustrating the piping layout of the system.

1.1 RZQG-L9V1

Specifically shows piping diagrams for the RZQG-L9V1 model.

2. Wiring Diagrams

Provides wiring diagrams for the outdoor unit.

2.1 Outdoor Unit

Details the wiring diagrams for the outdoor unit.

3. Thermodynamic characteristic of R-410A

Lists the thermodynamic characteristics of R-410A refrigerant.

4. Removing the switchbox

Provides instructions on how to remove the switchbox for access or maintenance.

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