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Daikin REYQ168 User Manual

Daikin REYQ168
273 pages
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REYQ72, 96, 144, 168, 192MTJU
R-410A Heat Recovery 60Hz
REYQ72MTJU REYQ96MTJU REYQ144MTJU
SiUS39 - 602
REYQ168MTJU REYQ192MTJU

Table of Contents

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Daikin REYQ168 Specifications

General IconGeneral
BrandDaikin
ModelREYQ168
CategoryAir Conditioner
LanguageEnglish

Summary

General Information

Model Names of Indoor/Outdoor Units

Lists the model names for various indoor and outdoor units in the VRV series.

External Appearance

Provides visual representations of indoor and outdoor unit designs.

Model Selection

Guides on selecting appropriate models based on capacity and connectable units.

Specifications

Outdoor Units

Detailed technical specifications for outdoor units.

Indoor Units

Detailed technical specifications for various indoor unit types.

BS Units

Technical specifications for BS (Booster) units.

Refrigerant Circuit

Refrigerant Circuit

Details refrigerant circuit diagrams and component functions for REYQ72M/96M.

Functional Parts Layout

Diagrams showing the layout of functional parts for REYQ72M/96M outdoor units.

Refrigerant Flow for Each Operation Mode

Illustrates refrigerant flow paths for different operational modes.

Function

Function General

Overview of system symbols and general operation modes.

Basic Control

Explanation of fundamental control operations like Normal Operation and PI Control.

Special Control

Details on special control functions such as Startup, Oil Return, and Defrost.

Protection Control

Describes protection mechanisms against high pressure, low pressure, and other faults.

Other Control

Covers additional controls like Outdoor Unit Rotation, Emergency, and Demand Operation.

Outline of Control (Indoor Unit)

Explains indoor unit control logic for drain pump, thermostat, and freeze prevention.

Introduction

Safety Cautions

Essential safety warnings and precautions for repair and product handling.

PREFACE

Introduction to the service manual and Daikin's VRV series.

Test Operation

Test Operation

Procedure and outline for conducting initial test operations.

Outdoor Unit PC Board Layout

Diagram showing the layout of components on the outdoor unit PC board.

Field Setting

Instructions for configuring settings via remote controller or outdoor unit.

Troubleshooting

Troubleshooting by Remote Controller

Methods for troubleshooting using remote controller functions.

Troubleshooting by Indication on the Remote Controller

Guides for diagnosing issues based on error codes displayed on the remote controller.

Replacement Procedure for INV Compressor, VRV (REYQ72M, 96M)

Replacement Procedure

Step-by-step instructions for replacing the INV compressor.

Appendix

Piping Diagrams

Diagrams illustrating refrigerant piping for outdoor, indoor, and BS units.

Wiring Diagrams for Reference

Reference wiring diagrams for outdoor, indoor, and BS units.

List of Electrical and Functional Parts

Lists electrical components and their specifications for outdoor and indoor units.

Option List

Details on optional accessories for operation control systems and outdoor units.

Example of Connection (R-410A Type)

Illustrates connection examples for heat recovery systems.

Thermistor Resistance / Temperature Characteristics

Provides resistance and temperature data for various thermistors.

Precautions for New Refrigerant (R-410A)

Precautions for New Refrigerant (R-410A)

General outlines and characteristics of R-410A refrigerant.

Service Tools

Lists required tools and devices for handling R-410A refrigerant.

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