Table of Contents
Summary and features..................................................................................1
Part 1 Safety Precautions
..........................................................................................2
Part 2 Specifications.....................................................................................................3
Part 3 Construction Views
........................................................................................7
Part 4 Refrigerant System Diagram
.....................................................................9
5.1 Electrical Data......................................................................................................10
5.2 Electrical Wiring....................................................................................................10
5.3 Printed Circuit Board.............................................................................................13
Part 5 Schematic Diagram......................................................................................10
6.1 Models GMU018HXB-2,GMU024HXB-2..............................................................20
6.2 Models GMU028HXB-3,GMU028HXB-4..............................................................24
Part 6 Description of Each Control Operation
............................................20
Part 7 Installation Manual
........................................................................................29
7.1 Installing the Outdoor Unit....................................................................................29
7.2 Bleeding...............................................................................................................29
7.3 Installation Dimension Diagram...........................................................................30
7.4 Check After Installation........................................................................................31
Part 8 Exploded Views and Parts List
..............................................................32
Part 9 Troubleshooting...............................................................................................40
9.1 ......................................................................................................40
9.2 ...............................................................................................40
9.3 .................................................................................................46
8.1 GMU018HXB-2.....................................................................................................32
8.2 GMU024HXB-2.....................................................................................................34
8.3 GMU028HXB-3 GMU028HXB-4...........................................................................37
Part10 Removal Procedure.......................................................................................54
10.1
Model:GMU018HXB-2
........................................................................................54
10.2
Model:GMU024HXB-2
.........................................................................................58
10.3
Model:GMU028HXB-3 GMU028HXB-4
...............................................................62
Common Parts
Malfunction Display
Troubleshooting
...