Carrier 42QHC009DS - Default Chapter; Table of Contents

CONTENTS
1. Precaution .................................................................................................................................................... 1
1.1 Safety Precaution .......................................................................................................................... 1
1.2 Warning ......................................................................................................................................... 1
2. Function ........................................................................................................................................................ 4
3. Dimension .................................................................................................................................................... 5
3.1 Indoor Unit ..................................................................................................................................... 5
3.2 Outdoor Unit .................................................................................................................................. 7
4. Wiring Diagram ............................................................................................................................................ 8
5. Refrigerant Cycle Diagram ....................................................................................................................... 10
6. Installation Details ...................................................................................................................................... 11
6.1 Wrench torque sheet for installation ............................................................................................ 11
6.2 Connecting the cables ................................................................................................................. 11
6.3 Pipe length and the elevation ..................................................................................................... 12
6.4 Installation for the first time ......................................................................................................... 13
6.5 Adding the refrigerant after running the system for many years ................................................ 14
6.6 Re-installation while the indoor unit need to be repaired ........................................................... 14
6.7 Re-installation while the outdoor unit need to be repaired ......................................................... 15
7. Operation Characteristics ......................................................................................................................... 17
8. Electronic function .................................................................................................................................... 18
8.1 Abbreviation ................................................................................................................................ 18
8.2 Display function ........................................................................................................................... 18
8.3 Main Protection ........................................................................................................................... 19
8.4 Operation Modes and Functions ................................................................................................. 20
9. Troubleshooting ......................................................................................................................................... 27
9.1 Indoor Unit Error Display ............................................................................................................. 28
9.2 Trouble shooting.......................................................................................................................... 29