ESIE13-01
VRV IV R-410A Heat Pump 50Hz, 60Hz
1. Introduction .............................................................................................v 1.1 Safety Cautions ........................................................................................v 1.2 PREFACE ................................................................................................x
Part 1 - General Information .......................................................... 1 1. Model Names of Indoor/Outdoor Units....................................................2 2. External Appearance...............................................................................4 2.1 Outdoor Units ...........................................................................................4
3. Model Selection.......................................................................................5 4. VRV III - VRV IV Components and Features ..........................................6
Part 2 - Specifications.................................................................... 7 1. General Specifications ............................................................................8 2. Electrical Specifications ..........................................................................9 3. Safety Specifications.............................................................................10
Part 3 - Wiring Diagrams .............................................................. 13 1. Wiring Diagrams for Reference.............................................................14 1.1 Outdoor Unit ...........................................................................................14 1.2 Field Wiring ............................................................................................18
Part 4 - Refrigerant Circuit ........................................................... 21 1. Piping Diagram and Functional Parts Layout........................................22 1.1 1.2 1.3 1.4 1.5 1.6
RYYQ8,10,12T7Y1B ..............................................................................22 RXYQ8,10,12T7Y1B ..............................................................................26 RYMQ8,10,12T7Y1B..............................................................................30 RYYQ14,16,18,20T7Y1B .......................................................................34 RXYQ14,16,18,20T7Y1B .......................................................................38 RYMQ14,16,18,20T7Y1B.......................................................................42
2. Refrigerant Flow for Each Operation Mode...........................................46 3. Functions...............................................................................................59 3.1 3.2 3.3 3.4 3.5 3.6
Stop Control ...........................................................................................60 Standby Control......................................................................................61 Start-up Control ......................................................................................62 Normal Operation ...................................................................................64 Protection Control...................................................................................71 Special Control .......................................................................................76
Part 5 - Field Settings................................................................... 80 1. List of Field Setting Items......................................................................81 1.1 Application Settings................................................................................81 1.2 Service Setting by “Configurator” ...........................................................83
2. Settings by DIP Switches ......................................................................84 i
Table of Contents