Gree R410A, Service Manual, Page: 2 / 217

Contents
PRODUCT ................................................................................................................... 2
1 MODELS LIST......................................................................................................................2
1.1 Outdoor Unit ..........................................................................................................................2
1.2 BU Module.............................................................................................................................2
1.3 Indoor Unit.............................................................................................................................3
2 NOMENCLATURE ...............................................................................................................5
2.1 Nomenclature of Outdoor Unit ..............................................................................................5
2.2 Nomenclature of BU Module.................................................................................................5
2.3 Nomenclature of Indoor Unit.................................................................................................5
3 FUNCTION ...........................................................................................................................6
4 PRODUCT DATA..................................................................................................................7
4.1 Product Data of Outdoor Unit................................................................................................7
4.2 Product Data of Indoor Unit...................................................................................................8
4.3 Product Data of BU Module ................................................................................................20
5 Working Temperature Range ...............................................................................................21
6 PIPING DIAGRAM.............................................................................................................22
Control........................................................................................................................ 25
1 OPERATION FLOWCHART..............................................................................................25
1.1 Cooling/Dry Operation ........................................................................................................26
1.2 Heating Operation ................................................................................................................27
2 MAIN LOGIC......................................................................................................................28
2.1 Control Function of Outdoor Unit .......................................................................................28
2.2 Protection Function..............................................................................................................29
2.3 Other function ......................................................................................................................30
2.4 Control Function of Indoor Unit ..........................................................................................31
3 REMOTE CONTROLLER..................................................................................................34
3.1 Wired Remote Controller.....................................................................................................34
3.2 Wireless Remote Controller YT1F (MOTO) .......................................................................39
3.3 Wireless Remote Controller YAA1FB1 ...............................................................................43
3.4 Wireless Remote Controller YAG1FB .................................................................................47
3.5 Wireless Remote Controller YB1F2 (XFAN) ......................................................................53
4 Smart Zone Controller (CE50-24/E)....................................................................................58
4.1 General Introduction ............................................................................................................58
4.2 Communication Network.....................................................................................................59
4.3 LCD......................................................................................................................................59
4.4 Buttons .................................................................................................................................60
INSTALLATION ....................................................................................................... 63
1 PRECAUTIONS FOR INSTALLATION............................................................................63
1.1 Precautions for Installation ..................................................................................................63
1.2 Key Points of Installation.....................................................................................................65