Daikin RXYSQ4-5-6PA7V1B Service Manual

Contents

SiBE34-802Table of Contents iR-410AHeat Pump50Hz1. Introduction ............................................................................................v1.1 Safety Cautions ........................................................................................v1.2 PREFACE ............................................................................................... ixPart 1 General Information ........................................................... 11. Model Names of Indoor/Outdoor Units....................................................22. External Appearance...............................................................................32.1 Indoor Units ..............................................................................................33. Capacity Range.......................................................................................4Part 2 Specifications .................................................................... 51. Specifications ..........................................................................................61.1 Outdoor Units ...........................................................................................61.2 Indoor Units ............................................................................................10Part 3 List of Electrical and Functional Parts............................ 291. List of Electrical and Functional Parts ...................................................301.1 Outdoor Unit ...........................................................................................301.2 Indoor Unit..............................................................................................32Part 4 Refrigerant Circuit ........................................................... 391. Refrigerant Circuit .................................................................................401.1 Outdoor Unit ...........................................................................................402. Functional Parts Layout ........................................................................442.1 RXYSQ4 / 5 / 6PA7Y1B .........................................................................442.2 RXYSQ4 / 5 / 6PA7V1B .........................................................................45Part 5 Function............................................................................ 471. Operation Mode ....................................................................................482. Basic Control.........................................................................................492.1 Normal Operation ...................................................................................492.2 Compressor PI Control...........................................................................502.3 Electronic Expansion Valve PI Control...................................................512.4 Cooling Operation Fan Control...............................................................523. Special Control......................................................................................533.1 Startup Control .......................................................................................533.2 Oil Return Operation ..............................................................................543.3 Defrosting Operation ..............................................................................563.4 Pump-down Residual Operation ............................................................57