Specifications

SiUS34-907

Table of Contents i

R-410A

Heat Pump 60Hz

1. Introduction ................................................................................................. v

1.1 Safety Considerations for Repair ................................................................. v

1.2 Safety Considerations for Users...................................................................vi

Part 1 General Information ..............................................................1

1. Model Names of Indoor/Outdoor Units........................................................2

2. External Appearance...................................................................................3

2.1 Indoor Units.................................................................................................. 3

2.2 Outdoor Units ............................................................................................... 3

3. Capacity Range...........................................................................................4

Part 2 Specifications .......................................................................5

1. Specifications ..............................................................................................6

1.1 Outdoor Units ............................................................................................... 6

1.2 Indoor Units.................................................................................................. 7

Part 3 List of Electrical and Functional Parts...............................20

1. List of Electrical and Functional Parts .......................................................21

1.1 Outdoor Unit ............................................................................................... 21

1.2 Indoor Unit.................................................................................................. 22

Part 4 Refrigerant Circuit ..............................................................26

1. Refrigerant Circuit .....................................................................................27

1.1 RXYMQ36 · 48P......................................................................................... 27

2. Functional Parts Layout ............................................................................29

2.1 RXYMQ36 · 48P......................................................................................... 29

Part 5 Function...............................................................................30

1. Operation Mode ........................................................................................31

2. Basic Control.............................................................................................32

2.1 Normal Operation ....................................................................................... 32

2.2 Compressor PI Control............................................................................... 33

2.3 Electronic Expansion Valve PI Control....................................................... 34

2.4 Cooling Operation Fan Control................................................................... 35

3. Special Control..........................................................................................36

3.1 Startup Control ........................................................................................... 36

3.2 Oil Return Operation .................................................................................. 37

3.3 Defrosting Operation .................................................................................. 39