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Daikin VRV III-S RXYMQ6PV4A User Manual

Daikin VRV III-S RXYMQ6PV4A
260 pages
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Table of Contents

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Daikin VRV III-S RXYMQ6PV4A Specifications

General IconGeneral
ModelRXYMQ6PV4A
TypeHeat Pump
RefrigerantR410A
Power SourceElectric
Power Supply380-415V, 50Hz, 3 Phase

Summary

Introduction to Daikin VRVIII-S Service Manual

General Safety Cautions and Pictograms

Details safety precautions, pictograms, and warnings for repair work.

Preface and Manual Scope

Part 1: General Information

Model Names of Indoor and Outdoor Units

Lists various indoor and outdoor unit models with their specifications.

External Appearance of Indoor and Outdoor Units

Visual identification of different indoor and outdoor unit types.

Capacity Range of VRVIII-S Systems

Details the capacity ranges for outdoor and indoor units in HP and capacity index.

Part 2: Specifications

Outdoor Unit Specifications

Detailed technical specifications for the outdoor unit RXYMQ6PV4A.

Indoor Unit Specifications

Technical specifications for various indoor unit types, including dimensions and performance.

Part 3: List of Electrical and Functional Parts

Outdoor Unit Electrical and Functional Parts

Lists components, symbols, models, and remarks for the outdoor unit.

Indoor Unit Electrical and Functional Parts

Lists components, symbols, models, and remarks for various indoor unit types.

Part 4: Refrigerant Circuit

RXYMQ6P Refrigerant Circuit Diagram and Function

Diagram and function of key components in the refrigerant circuit.

RXYMQ6P Functional Parts Layout (Birds-eye View)

Visual layout of functional parts of the RXYMQ6P outdoor unit.

Part 5: Function

System Operation Modes Overview

Diagram illustrating system operation modes like normal, standby, and special controls.

Basic Control Functions

Details normal operation controls for cooling and heating modes.

Compressor PI Control for Stable Performance

Maintains evaporator outlet superheated degree (SH) and compressor outlet temperature (Tc).

Electronic Expansion Valve (EV) PI Control

Controls EV for optimal superheated degree in cooling and heating operations.

Cooling Operation Fan Control Strategy

Manages outdoor unit fan speed based on temperature and pressure for cooling.

Special Control Operations

Describes special control functions like startup, oil return, and defrosting.

Startup Control Procedures (Cooling and Heating)

Ensures pressure equalization and capacitor charging before compressor startup.

Part 6: Test Operation

Initial Test Operation Procedures

Steps for conducting initial test operation after installation, including power supply checks.

Test Operation Procedure and Outline

Step-by-step guide for initial test operation after installation.

Pre-Power Checks for Test Operation

Checks wiring, refrigerant piping, and charge before applying power.

Check Operation Execution and Malfunction Codes

Details the automatic check operation and how to interpret malfunction codes.

Initial Power-On Operation Sequence

Describes behavior during first-time power-on and subsequent power-on.

Outdoor Unit PC Board Layout and Indicators

Diagram of the outdoor unit PC board showing LEDs, switches, and connectors.

Field Setting Procedures

Guides for setting indoor unit functions via remote controller or outdoor unit DIP switches.

Field Setting via Remote Controller

Instructions for setting various indoor unit functions using wired or wireless remotes.

VRV Indoor Unit Setting Contents and Codes

Table detailing available settings, mode numbers, and codes for VRV indoor units.

Part 7: Troubleshooting

Troubleshooting by Symptom

Lists symptoms, supposed causes, and countermeasures for common issues.

Troubleshooting Using the Remote Controller

Guides for using remote controller buttons for inspection, self-diagnosis, and service modes.

Inspection/Test Button Functions

Explains modes accessible via the Inspection/Test Operation button on the remote.

Wired Remote Controller Self-Diagnosis

Procedure to perform self-diagnosis using the wired remote controller.

Wireless Remote Controller Self-Diagnosis

Procedure to perform self-diagnosis using the wireless remote controller.

Troubleshooting by Remote Controller Malfunction Codes

Lists malfunction codes displayed on the remote controller and their troubleshooting steps.

Part 8: Appendix

Piping Diagrams for Outdoor and Indoor Units

Schematic diagrams illustrating refrigerant piping for outdoor and indoor units.

Wiring Diagrams for Outdoor and Indoor Units

Electrical wiring diagrams for outdoor and indoor unit components and connections.

Thermistor Resistance vs. Temperature Characteristics

Table showing resistance values of thermistors at different temperatures.

Part 9: Precautions for New Refrigerant (R-410A)

General Precautions for R-410A Refrigerant

Covers refrigerant characteristics, pressure, composition, and performance comparisons.

Service Tools for R-410A Systems

Lists and describes essential tools required for servicing R-410A systems.

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