Gree KM48H4O Service Manual page 5

Super Free Match
Service Manual
7.9 Electrical Wiring Work for Indoor Unit ........................................................................... 105
8 INSTALLATION OF DRAINAGE PIPELINE ............................................................... 106
8.1 Material Quality Requirements for Condensate Pipe ....................................................... 106
8.2 Key Points for Condensate Pipe Installation ..................................................................... 106
9 Installation of Protective Layer on Connection Pipe ........................................................ 110
MAINTENANCE .................................................................................................... 111
1 Testing Board Introduction ............................................................................................... 112
1.1 Compose of Testing Board ............................................................................................... 112
1.2 Instruction of Function and Data Section ......................................................................... 112
1.3 Process Control Setting ...................................................................................................... 113
2 Troubleshooting ................................................................................................................. 115
2.1 Check before Contacting Maintenance Serviceman ......................................................... 115
2.2 Problem Handling .............................................................................................................. 116
2.3 Error description ................................................................................................................ 116
3 FLOW CHART OF TROUBLESHOOTING ................................................................... 119
3.1 Malfunction display: Current protection ........................................................................... 119
3.2 Malfunction display: High Pressure Protection .................................................................120
3.3 Malfunction display: Low Pressure Protection ................................................................. 121
3.4 Malfunction display: Discharge temperature protection ................................................... 122
3.5 Malfunction display: High/Low pressure sensor error ...................................................... 122
3.6 Malfunction display: Communication error ...................................................................... 123
3.7 Malfunction display: Indoor unit water full protection ..................................................... 124
3.8 Malfunction display: Temperature sensor error ................................................................ 124
4 POWER DISTRIBUTION ................................................................................................ 125
4.1 Diagram of Power Distribution ......................................................................................... 125
4.2 Wiring diagram .................................................................................................................. 126
5 THE RESISTANCES OF COMMON TEMPERATURE SENSORS ............................. 132
5.1 15 KΩ ................................................................................................................................. 132
5.2 20 KΩ ................................................................................................................................. 133
5.3 50 KΩ ................................................................................................................................. 134
6 DISASSEMBLY AND ASSEMBLY PROCEDURE OF MAIN PARTS ....................... 137
6.1 Outdoor Unit ...................................................................................................................... 137
6.2 Indoor unit .......................................................................................................................... 142
7 EXPLODED VIEWS AND PART LIST.......................................................................... 152
7.1 Outdoor unit ....................................................................................................................... 152
7.2 Indoor unit .......................................................................................................................... 154
7.3 BU Module ......................................................................................................................... 185 .... 172